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godot/modules/mono/editor/bindings_generator.cpp
Rémi Verschelde baec8da3b3
.NET: Prevent generating mono glue in project folder 
Fixes #83128.
2024-05-03 14:24:35 +02:00

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/**************************************************************************/
/* bindings_generator.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "bindings_generator.h"
#if defined(DEBUG_METHODS_ENABLED) && defined(TOOLS_ENABLED)
#include "../godotsharp_defs.h"
#include "../utils/naming_utils.h"
#include "../utils/path_utils.h"
#include "../utils/string_utils.h"
#include "core/config/engine.h"
#include "core/core_constants.h"
#include "core/io/compression.h"
#include "core/io/dir_access.h"
#include "core/io/file_access.h"
#include "core/os/os.h"
#include "main/main.h"
StringBuilder &operator<<(StringBuilder &r_sb, const String &p_string) {
r_sb.append(p_string);
return r_sb;
}
StringBuilder &operator<<(StringBuilder &r_sb, const char *p_cstring) {
r_sb.append(p_cstring);
return r_sb;
}
#define CS_INDENT " " // 4 whitespaces
#define INDENT1 CS_INDENT
#define INDENT2 INDENT1 INDENT1
#define INDENT3 INDENT2 INDENT1
#define INDENT4 INDENT3 INDENT1
#define MEMBER_BEGIN "\n" INDENT1
#define OPEN_BLOCK "{\n"
#define CLOSE_BLOCK "}\n"
#define OPEN_BLOCK_L1 INDENT1 OPEN_BLOCK
#define OPEN_BLOCK_L2 INDENT2 OPEN_BLOCK
#define OPEN_BLOCK_L3 INDENT3 OPEN_BLOCK
#define CLOSE_BLOCK_L1 INDENT1 CLOSE_BLOCK
#define CLOSE_BLOCK_L2 INDENT2 CLOSE_BLOCK
#define CLOSE_BLOCK_L3 INDENT3 CLOSE_BLOCK
#define BINDINGS_GLOBAL_SCOPE_CLASS "GD"
#define BINDINGS_NATIVE_NAME_FIELD "NativeName"
#define CS_PARAM_MEMORYOWN "memoryOwn"
#define CS_PARAM_METHODBIND "method"
#define CS_PARAM_INSTANCE "ptr"
#define CS_STATIC_METHOD_GETINSTANCE "GetPtr"
#define CS_METHOD_CALL "Call"
#define CS_PROPERTY_SINGLETON "Singleton"
#define CS_SINGLETON_INSTANCE_SUFFIX "Instance"
#define CS_METHOD_INVOKE_GODOT_CLASS_METHOD "InvokeGodotClassMethod"
#define CS_METHOD_HAS_GODOT_CLASS_METHOD "HasGodotClassMethod"
#define CS_METHOD_HAS_GODOT_CLASS_SIGNAL "HasGodotClassSignal"
#define CS_STATIC_FIELD_NATIVE_CTOR "NativeCtor"
#define CS_STATIC_FIELD_METHOD_BIND_PREFIX "MethodBind"
#define CS_STATIC_FIELD_METHOD_PROXY_NAME_PREFIX "MethodProxyName_"
#define CS_STATIC_FIELD_SIGNAL_PROXY_NAME_PREFIX "SignalProxyName_"
#define ICALL_PREFIX "godot_icall_"
#define ICALL_CLASSDB_GET_METHOD "ClassDB_get_method"
#define ICALL_CLASSDB_GET_METHOD_WITH_COMPATIBILITY "ClassDB_get_method_with_compatibility"
#define ICALL_CLASSDB_GET_CONSTRUCTOR "ClassDB_get_constructor"
#define C_LOCAL_RET "ret"
#define C_LOCAL_VARARG_RET "vararg_ret"
#define C_LOCAL_PTRCALL_ARGS "call_args"
#define C_CLASS_NATIVE_FUNCS "NativeFuncs"
#define C_NS_MONOUTILS "InteropUtils"
#define C_METHOD_UNMANAGED_GET_MANAGED C_NS_MONOUTILS ".UnmanagedGetManaged"
#define C_METHOD_ENGINE_GET_SINGLETON C_NS_MONOUTILS ".EngineGetSingleton"
#define C_NS_MONOMARSHAL "Marshaling"
#define C_METHOD_MONOSTR_TO_GODOT C_NS_MONOMARSHAL ".ConvertStringToNative"
#define C_METHOD_MONOSTR_FROM_GODOT C_NS_MONOMARSHAL ".ConvertStringToManaged"
#define C_METHOD_MONOARRAY_TO(m_type) C_NS_MONOMARSHAL ".ConvertSystemArrayToNative" #m_type
#define C_METHOD_MONOARRAY_FROM(m_type) C_NS_MONOMARSHAL ".ConvertNative" #m_type "ToSystemArray"
#define C_METHOD_MANAGED_TO_CALLABLE C_NS_MONOMARSHAL ".ConvertCallableToNative"
#define C_METHOD_MANAGED_FROM_CALLABLE C_NS_MONOMARSHAL ".ConvertCallableToManaged"
#define C_METHOD_MANAGED_TO_SIGNAL C_NS_MONOMARSHAL ".ConvertSignalToNative"
#define C_METHOD_MANAGED_FROM_SIGNAL C_NS_MONOMARSHAL ".ConvertSignalToManaged"
// Types that will be ignored by the generator and won't be available in C#.
// This must be kept in sync with `ignored_types` in csharp_script.cpp
const Vector<String> ignored_types = {};
// Special [code] keywords to wrap with <see langword="code"/> instead of <c>code</c>.
// Don't check against all C# reserved words, as many cases are GDScript-specific.
const Vector<String> langword_check = { "true", "false", "null" };
// The following properties currently need to be defined with `new` to avoid warnings. We treat
// them as a special case instead of silencing the warnings altogether, to be warned if more
// shadowing appears.
const Vector<String> prop_allowed_inherited_member_hiding = {
"ArrayMesh.BlendShapeMode",
"Button.TextDirection",
"Label.TextDirection",
"LineEdit.TextDirection",
"LinkButton.TextDirection",
"MenuBar.TextDirection",
"RichTextLabel.TextDirection",
"TextEdit.TextDirection",
};
void BindingsGenerator::TypeInterface::postsetup_enum_type(BindingsGenerator::TypeInterface &r_enum_itype) {
// C interface for enums is the same as that of 'uint32_t'. Remember to apply
// any of the changes done here to the 'uint32_t' type interface as well.
r_enum_itype.cs_type = r_enum_itype.proxy_name;
r_enum_itype.cs_in_expr = "(int)%0";
r_enum_itype.cs_out = "%5return (%2)%0(%1);";
{
// The expected types for parameters and return value in ptrcall are 'int64_t' or 'uint64_t'.
r_enum_itype.c_in = "%5%0 %1_in = %1;\n";
r_enum_itype.c_out = "%5return (%0)(%1);\n";
r_enum_itype.c_type = "long";
r_enum_itype.c_arg_in = "&%s_in";
}
r_enum_itype.c_type_in = "int";
r_enum_itype.c_type_out = r_enum_itype.c_type_in;
r_enum_itype.class_doc = &EditorHelp::get_doc_data()->class_list[r_enum_itype.proxy_name];
}
static String fix_doc_description(const String &p_bbcode) {
// This seems to be the correct way to do this. It's the same EditorHelp does.
return p_bbcode.dedent()
.replace("\t", "")
.replace("\r", "")
.strip_edges();
}
String BindingsGenerator::bbcode_to_text(const String &p_bbcode, const TypeInterface *p_itype) {
// Based on the version in EditorHelp.
if (p_bbcode.is_empty()) {
return String();
}
DocTools *doc = EditorHelp::get_doc_data();
String bbcode = p_bbcode;
StringBuilder output;
List<String> tag_stack;
bool code_tag = false;
int pos = 0;
while (pos < bbcode.length()) {
int brk_pos = bbcode.find("[", pos);
if (brk_pos < 0) {
brk_pos = bbcode.length();
}
if (brk_pos > pos) {
String text = bbcode.substr(pos, brk_pos - pos);
if (code_tag || tag_stack.size() > 0) {
output.append("'" + text + "'");
} else {
output.append(text);
}
}
if (brk_pos == bbcode.length()) {
// Nothing else to add.
break;
}
int brk_end = bbcode.find("]", brk_pos + 1);
if (brk_end == -1) {
String text = bbcode.substr(brk_pos, bbcode.length() - brk_pos);
if (code_tag || tag_stack.size() > 0) {
output.append("'" + text + "'");
}
break;
}
String tag = bbcode.substr(brk_pos + 1, brk_end - brk_pos - 1);
if (tag.begins_with("/")) {
bool tag_ok = tag_stack.size() && tag_stack.front()->get() == tag.substr(1, tag.length());
if (!tag_ok) {
output.append("]");
pos = brk_pos + 1;
continue;
}
tag_stack.pop_front();
pos = brk_end + 1;
code_tag = false;
} else if (code_tag) {
output.append("[");
pos = brk_pos + 1;
} else if (tag.begins_with("method ") || tag.begins_with("constructor ") || tag.begins_with("operator ") || tag.begins_with("member ") || tag.begins_with("signal ") || tag.begins_with("enum ") || tag.begins_with("constant ") || tag.begins_with("theme_item ") || tag.begins_with("param ")) {
const int tag_end = tag.find(" ");
const String link_tag = tag.substr(0, tag_end);
const String link_target = tag.substr(tag_end + 1, tag.length()).lstrip(" ");
const Vector<String> link_target_parts = link_target.split(".");
if (link_target_parts.size() <= 0 || link_target_parts.size() > 2) {
ERR_PRINT("Invalid reference format: '" + tag + "'.");
output.append(tag);
pos = brk_end + 1;
continue;
}
const TypeInterface *target_itype;
StringName target_cname;
if (link_target_parts.size() == 2) {
target_itype = _get_type_or_null(TypeReference(link_target_parts[0]));
if (!target_itype) {
target_itype = _get_type_or_null(TypeReference("_" + link_target_parts[0]));
}
target_cname = link_target_parts[1];
} else {
target_itype = p_itype;
target_cname = link_target_parts[0];
}
if (link_tag == "method") {
_append_text_method(output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "constructor") {
// TODO: Support constructors?
_append_text_undeclared(output, link_target);
} else if (link_tag == "operator") {
// TODO: Support operators?
_append_text_undeclared(output, link_target);
} else if (link_tag == "member") {
_append_text_member(output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "signal") {
_append_text_signal(output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "enum") {
_append_text_enum(output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "constant") {
_append_text_constant(output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "param") {
_append_text_param(output, link_target);
} else if (link_tag == "theme_item") {
// We do not declare theme_items in any way in C#, so there is nothing to reference.
_append_text_undeclared(output, link_target);
}
pos = brk_end + 1;
} else if (doc->class_list.has(tag)) {
if (tag == "Array" || tag == "Dictionary") {
output.append("'" BINDINGS_NAMESPACE_COLLECTIONS ".");
output.append(tag);
output.append("'");
} else if (tag == "bool" || tag == "int") {
output.append(tag);
} else if (tag == "float") {
output.append(
#ifdef REAL_T_IS_DOUBLE
"double"
#else
"float"
#endif
);
} else if (tag == "Variant") {
output.append("'Godot.Variant'");
} else if (tag == "String") {
output.append("string");
} else if (tag == "Nil") {
output.append("null");
} else if (tag.begins_with("@")) {
// @GlobalScope, @GDScript, etc.
output.append("'" + tag + "'");
} else if (tag == "PackedByteArray") {
output.append("byte[]");
} else if (tag == "PackedInt32Array") {
output.append("int[]");
} else if (tag == "PackedInt64Array") {
output.append("long[]");
} else if (tag == "PackedFloat32Array") {
output.append("float[]");
} else if (tag == "PackedFloat64Array") {
output.append("double[]");
} else if (tag == "PackedStringArray") {
output.append("string[]");
} else if (tag == "PackedVector2Array") {
output.append("'" BINDINGS_NAMESPACE ".Vector2[]'");
} else if (tag == "PackedVector3Array") {
output.append("'" BINDINGS_NAMESPACE ".Vector3[]'");
} else if (tag == "PackedColorArray") {
output.append("'" BINDINGS_NAMESPACE ".Color[]'");
} else if (tag == "PackedVector4Array") {
output.append("'" BINDINGS_NAMESPACE ".Vector4[]'");
} else {
const TypeInterface *target_itype = _get_type_or_null(TypeReference(tag));
if (!target_itype) {
target_itype = _get_type_or_null(TypeReference("_" + tag));
}
if (target_itype) {
output.append("'" + target_itype->proxy_name + "'");
} else {
ERR_PRINT("Cannot resolve type reference in documentation: '" + tag + "'.");
output.append("'" + tag + "'");
}
}
pos = brk_end + 1;
} else if (tag == "b") {
// Bold is not supported.
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "i") {
// Italic is not supported.
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "code" || tag.begins_with("code ")) {
code_tag = true;
pos = brk_end + 1;
tag_stack.push_front("code");
} else if (tag == "kbd") {
// Keyboard combinations are not supported.
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "center") {
// Center alignment is not supported.
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "br") {
// Break is not supported.
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "u") {
// Underline is not supported.
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "s") {
// Strikethrough is not supported.
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "url") {
int end = bbcode.find("[", brk_end);
if (end == -1) {
end = bbcode.length();
}
String url = bbcode.substr(brk_end + 1, end - brk_end - 1);
// Not supported. Just append the url.
output.append(url);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag.begins_with("url=")) {
String url = tag.substr(4, tag.length());
// Not supported. Just append the url.
output.append(url);
pos = brk_end + 1;
tag_stack.push_front("url");
} else if (tag == "img") {
int end = bbcode.find("[", brk_end);
if (end == -1) {
end = bbcode.length();
}
String image = bbcode.substr(brk_end + 1, end - brk_end - 1);
// Not supported. Just append the bbcode.
output.append("[img]");
output.append(image);
output.append("[/img]");
pos = end;
tag_stack.push_front(tag);
} else if (tag.begins_with("color=")) {
// Not supported.
pos = brk_end + 1;
tag_stack.push_front("color");
} else if (tag.begins_with("font=")) {
// Not supported.
pos = brk_end + 1;
tag_stack.push_front("font");
} else {
// Ignore unrecognized tag.
output.append("[");
pos = brk_pos + 1;
}
}
return output.as_string();
}
String BindingsGenerator::bbcode_to_xml(const String &p_bbcode, const TypeInterface *p_itype, bool p_is_signal) {
// Based on the version in EditorHelp.
if (p_bbcode.is_empty()) {
return String();
}
DocTools *doc = EditorHelp::get_doc_data();
String bbcode = p_bbcode;
StringBuilder xml_output;
xml_output.append("<para>");
List<String> tag_stack;
bool code_tag = false;
bool line_del = false;
int pos = 0;
while (pos < bbcode.length()) {
int brk_pos = bbcode.find("[", pos);
if (brk_pos < 0) {
brk_pos = bbcode.length();
}
if (brk_pos > pos) {
if (!line_del) {
String text = bbcode.substr(pos, brk_pos - pos);
if (code_tag || tag_stack.size() > 0) {
xml_output.append(text.xml_escape());
} else {
Vector<String> lines = text.split("\n");
for (int i = 0; i < lines.size(); i++) {
if (i != 0) {
xml_output.append("<para>");
}
xml_output.append(lines[i].xml_escape());
if (i != lines.size() - 1) {
xml_output.append("</para>\n");
}
}
}
}
}
if (brk_pos == bbcode.length()) {
// Nothing else to add.
break;
}
int brk_end = bbcode.find("]", brk_pos + 1);
if (brk_end == -1) {
if (!line_del) {
String text = bbcode.substr(brk_pos, bbcode.length() - brk_pos);
if (code_tag || tag_stack.size() > 0) {
xml_output.append(text.xml_escape());
} else {
Vector<String> lines = text.split("\n");
for (int i = 0; i < lines.size(); i++) {
if (i != 0) {
xml_output.append("<para>");
}
xml_output.append(lines[i].xml_escape());
if (i != lines.size() - 1) {
xml_output.append("</para>\n");
}
}
}
}
break;
}
String tag = bbcode.substr(brk_pos + 1, brk_end - brk_pos - 1);
if (tag.begins_with("/")) {
bool tag_ok = tag_stack.size() && tag_stack.front()->get() == tag.substr(1, tag.length());
if (!tag_ok) {
if (!line_del) {
xml_output.append("[");
}
pos = brk_pos + 1;
continue;
}
tag_stack.pop_front();
pos = brk_end + 1;
code_tag = false;
if (tag == "/url") {
xml_output.append("</a>");
} else if (tag == "/code") {
xml_output.append("</c>");
} else if (tag == "/codeblock") {
xml_output.append("</code>");
} else if (tag == "/b") {
xml_output.append("</b>");
} else if (tag == "/i") {
xml_output.append("</i>");
} else if (tag == "/csharp") {
xml_output.append("</code>");
line_del = true;
} else if (tag == "/codeblocks") {
line_del = false;
}
} else if (code_tag) {
xml_output.append("[");
pos = brk_pos + 1;
} else if (tag.begins_with("method ") || tag.begins_with("constructor ") || tag.begins_with("operator ") || tag.begins_with("member ") || tag.begins_with("signal ") || tag.begins_with("enum ") || tag.begins_with("constant ") || tag.begins_with("theme_item ") || tag.begins_with("param ")) {
const int tag_end = tag.find(" ");
const String link_tag = tag.substr(0, tag_end);
const String link_target = tag.substr(tag_end + 1, tag.length()).lstrip(" ");
const Vector<String> link_target_parts = link_target.split(".");
if (link_target_parts.size() <= 0 || link_target_parts.size() > 2) {
ERR_PRINT("Invalid reference format: '" + tag + "'.");
xml_output.append("<c>");
xml_output.append(tag);
xml_output.append("</c>");
pos = brk_end + 1;
continue;
}
const TypeInterface *target_itype;
StringName target_cname;
if (link_target_parts.size() == 2) {
target_itype = _get_type_or_null(TypeReference(link_target_parts[0]));
if (!target_itype) {
target_itype = _get_type_or_null(TypeReference("_" + link_target_parts[0]));
}
target_cname = link_target_parts[1];
} else {
target_itype = p_itype;
target_cname = link_target_parts[0];
}
if (link_tag == "method") {
_append_xml_method(xml_output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "constructor") {
// TODO: Support constructors?
_append_xml_undeclared(xml_output, link_target);
} else if (link_tag == "operator") {
// TODO: Support operators?
_append_xml_undeclared(xml_output, link_target);
} else if (link_tag == "member") {
_append_xml_member(xml_output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "signal") {
_append_xml_signal(xml_output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "enum") {
_append_xml_enum(xml_output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "constant") {
_append_xml_constant(xml_output, target_itype, target_cname, link_target, link_target_parts);
} else if (link_tag == "param") {
_append_xml_param(xml_output, link_target, p_is_signal);
} else if (link_tag == "theme_item") {
// We do not declare theme_items in any way in C#, so there is nothing to reference.
_append_xml_undeclared(xml_output, link_target);
}
pos = brk_end + 1;
} else if (doc->class_list.has(tag)) {
if (tag == "Array" || tag == "Dictionary") {
xml_output.append("<see cref=\"" BINDINGS_NAMESPACE_COLLECTIONS ".");
xml_output.append(tag);
xml_output.append("\"/>");
} else if (tag == "bool" || tag == "int") {
xml_output.append("<see cref=\"");
xml_output.append(tag);
xml_output.append("\"/>");
} else if (tag == "float") {
xml_output.append("<see cref=\""
#ifdef REAL_T_IS_DOUBLE
"double"
#else
"float"
#endif
"\"/>");
} else if (tag == "Variant") {
xml_output.append("<see cref=\"Godot.Variant\"/>");
} else if (tag == "String") {
xml_output.append("<see cref=\"string\"/>");
} else if (tag == "Nil") {
xml_output.append("<see langword=\"null\"/>");
} else if (tag.begins_with("@")) {
// @GlobalScope, @GDScript, etc.
xml_output.append("<c>");
xml_output.append(tag);
xml_output.append("</c>");
} else if (tag == "PackedByteArray") {
xml_output.append("<see cref=\"byte\"/>[]");
} else if (tag == "PackedInt32Array") {
xml_output.append("<see cref=\"int\"/>[]");
} else if (tag == "PackedInt64Array") {
xml_output.append("<see cref=\"long\"/>[]");
} else if (tag == "PackedFloat32Array") {
xml_output.append("<see cref=\"float\"/>[]");
} else if (tag == "PackedFloat64Array") {
xml_output.append("<see cref=\"double\"/>[]");
} else if (tag == "PackedStringArray") {
xml_output.append("<see cref=\"string\"/>[]");
} else if (tag == "PackedVector2Array") {
xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".Vector2\"/>[]");
} else if (tag == "PackedVector3Array") {
xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".Vector3\"/>[]");
} else if (tag == "PackedColorArray") {
xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".Color\"/>[]");
} else if (tag == "PackedVector4Array") {
xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".Vector4\"/>[]");
} else {
const TypeInterface *target_itype = _get_type_or_null(TypeReference(tag));
if (!target_itype) {
target_itype = _get_type_or_null(TypeReference("_" + tag));
}
if (target_itype) {
if ((!p_itype || p_itype->api_type == ClassDB::API_CORE) && target_itype->api_type == ClassDB::API_EDITOR) {
// Editor references in core documentation cannot be resolved,
// handle as standard codeblock.
_log("Cannot reference editor type '%s' in documentation for core type '%s'\n",
target_itype->proxy_name.utf8().get_data(), p_itype ? p_itype->proxy_name.utf8().get_data() : "@GlobalScope");
xml_output.append("<c>");
xml_output.append(target_itype->proxy_name);
xml_output.append("</c>");
} else {
xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
xml_output.append(target_itype->proxy_name);
xml_output.append("\"/>");
}
} else {
ERR_PRINT("Cannot resolve type reference in documentation: '" + tag + "'.");
xml_output.append("<c>");
xml_output.append(tag);
xml_output.append("</c>");
}
}
pos = brk_end + 1;
} else if (tag == "b") {
xml_output.append("<b>");
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "i") {
xml_output.append("<i>");
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "code" || tag.begins_with("code ")) {
int end = bbcode.find("[", brk_end);
if (end == -1) {
end = bbcode.length();
}
String code = bbcode.substr(brk_end + 1, end - brk_end - 1);
if (langword_check.has(code)) {
xml_output.append("<see langword=\"");
xml_output.append(code);
xml_output.append("\"/>");
pos = brk_end + code.length() + 8;
} else {
xml_output.append("<c>");
code_tag = true;
pos = brk_end + 1;
tag_stack.push_front("code");
}
} else if (tag == "codeblock" || tag.begins_with("codeblock ")) {
xml_output.append("<code>");
code_tag = true;
pos = brk_end + 1;
tag_stack.push_front("codeblock");
} else if (tag == "codeblocks") {
line_del = true;
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "csharp" || tag.begins_with("csharp ")) {
xml_output.append("<code>");
line_del = false;
code_tag = true;
pos = brk_end + 1;
tag_stack.push_front("csharp");
} else if (tag == "kbd") {
// Keyboard combinations are not supported in xml comments.
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "center") {
// Center alignment is not supported in xml comments.
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "br") {
xml_output.append("\n"); // FIXME: Should use <para> instead. Luckily this tag isn't used for now.
pos = brk_end + 1;
} else if (tag == "u") {
// Underline is not supported in Rider xml comments.
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "s") {
// Strikethrough is not supported in xml comments.
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "url") {
int end = bbcode.find("[", brk_end);
if (end == -1) {
end = bbcode.length();
}
String url = bbcode.substr(brk_end + 1, end - brk_end - 1);
xml_output.append("<a href=\"");
xml_output.append(url);
xml_output.append("\">");
xml_output.append(url);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag.begins_with("url=")) {
String url = tag.substr(4, tag.length());
xml_output.append("<a href=\"");
xml_output.append(url);
xml_output.append("\">");
pos = brk_end + 1;
tag_stack.push_front("url");
} else if (tag == "img") {
int end = bbcode.find("[", brk_end);
if (end == -1) {
end = bbcode.length();
}
String image = bbcode.substr(brk_end + 1, end - brk_end - 1);
// Not supported. Just append the bbcode.
xml_output.append("[img]");
xml_output.append(image);
xml_output.append("[/img]");
pos = end;
tag_stack.push_front(tag);
} else if (tag.begins_with("color=")) {
// Not supported.
pos = brk_end + 1;
tag_stack.push_front("color");
} else if (tag.begins_with("font=")) {
// Not supported.
pos = brk_end + 1;
tag_stack.push_front("font");
} else {
if (!line_del) {
// Ignore unrecognized tag.
xml_output.append("[");
}
pos = brk_pos + 1;
}
}
xml_output.append("</para>");
return xml_output.as_string();
}
void BindingsGenerator::_append_text_method(StringBuilder &p_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
if (p_link_target_parts[0] == name_cache.type_at_GlobalScope) {
if (OS::get_singleton()->is_stdout_verbose()) {
OS::get_singleton()->print("Cannot resolve @GlobalScope method reference in documentation: %s\n", p_link_target.utf8().get_data());
}
// TODO Map what we can
_append_text_undeclared(p_output, p_link_target);
} else if (!p_target_itype || !p_target_itype->is_object_type) {
if (OS::get_singleton()->is_stdout_verbose()) {
if (p_target_itype) {
OS::get_singleton()->print("Cannot resolve method reference for non-GodotObject type in documentation: %s\n", p_link_target.utf8().get_data());
} else {
OS::get_singleton()->print("Cannot resolve type from method reference in documentation: %s\n", p_link_target.utf8().get_data());
}
}
// TODO Map what we can
_append_text_undeclared(p_output, p_link_target);
} else {
if (p_target_cname == "_init") {
// The _init method is not declared in C#, reference the constructor instead
p_output.append("'new " BINDINGS_NAMESPACE ".");
p_output.append(p_target_itype->proxy_name);
p_output.append("()'");
} else {
const MethodInterface *target_imethod = p_target_itype->find_method_by_name(p_target_cname);
if (target_imethod) {
p_output.append("'" BINDINGS_NAMESPACE ".");
p_output.append(p_target_itype->proxy_name);
p_output.append(".");
p_output.append(target_imethod->proxy_name);
p_output.append("(");
bool first_key = true;
for (const ArgumentInterface &iarg : target_imethod->arguments) {
const TypeInterface *arg_type = _get_type_or_null(iarg.type);
if (first_key) {
first_key = false;
} else {
p_output.append(", ");
}
if (!arg_type) {
ERR_PRINT("Cannot resolve argument type in documentation: '" + p_link_target + "'.");
p_output.append(iarg.type.cname);
continue;
}
if (iarg.def_param_mode == ArgumentInterface::NULLABLE_VAL) {
p_output.append("Nullable<");
}
String arg_cs_type = arg_type->cs_type + _get_generic_type_parameters(*arg_type, iarg.type.generic_type_parameters);
p_output.append(arg_cs_type.replacen("params ", ""));
if (iarg.def_param_mode == ArgumentInterface::NULLABLE_VAL) {
p_output.append(">");
}
}
p_output.append(")'");
} else {
if (!p_target_itype->is_intentionally_ignored(p_link_target)) {
ERR_PRINT("Cannot resolve method reference in documentation: '" + p_link_target + "'.");
}
_append_text_undeclared(p_output, p_link_target);
}
}
}
}
void BindingsGenerator::_append_text_member(StringBuilder &p_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
if (p_link_target.find("/") >= 0) {
// Properties with '/' (slash) in the name are not declared in C#, so there is nothing to reference.
_append_text_undeclared(p_output, p_link_target);
} else if (!p_target_itype || !p_target_itype->is_object_type) {
if (OS::get_singleton()->is_stdout_verbose()) {
if (p_target_itype) {
OS::get_singleton()->print("Cannot resolve member reference for non-GodotObject type in documentation: %s\n", p_link_target.utf8().get_data());
} else {
OS::get_singleton()->print("Cannot resolve type from member reference in documentation: %s\n", p_link_target.utf8().get_data());
}
}
// TODO Map what we can
_append_text_undeclared(p_output, p_link_target);
} else {
const TypeInterface *current_itype = p_target_itype;
const PropertyInterface *target_iprop = nullptr;
while (target_iprop == nullptr && current_itype != nullptr) {
target_iprop = current_itype->find_property_by_name(p_target_cname);
if (target_iprop == nullptr) {
current_itype = _get_type_or_null(TypeReference(current_itype->base_name));
}
}
if (target_iprop) {
p_output.append("'" BINDINGS_NAMESPACE ".");
p_output.append(current_itype->proxy_name);
p_output.append(".");
p_output.append(target_iprop->proxy_name);
p_output.append("'");
} else {
if (!p_target_itype->is_intentionally_ignored(p_link_target)) {
ERR_PRINT("Cannot resolve member reference in documentation: '" + p_link_target + "'.");
}
_append_text_undeclared(p_output, p_link_target);
}
}
}
void BindingsGenerator::_append_text_signal(StringBuilder &p_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
if (!p_target_itype || !p_target_itype->is_object_type) {
if (OS::get_singleton()->is_stdout_verbose()) {
if (p_target_itype) {
OS::get_singleton()->print("Cannot resolve signal reference for non-GodotObject type in documentation: %s\n", p_link_target.utf8().get_data());
} else {
OS::get_singleton()->print("Cannot resolve type from signal reference in documentation: %s\n", p_link_target.utf8().get_data());
}
}
// TODO Map what we can
_append_text_undeclared(p_output, p_link_target);
} else {
const SignalInterface *target_isignal = p_target_itype->find_signal_by_name(p_target_cname);
if (target_isignal) {
p_output.append("'" BINDINGS_NAMESPACE ".");
p_output.append(p_target_itype->proxy_name);
p_output.append(".");
p_output.append(target_isignal->proxy_name);
p_output.append("'");
} else {
if (!p_target_itype->is_intentionally_ignored(p_link_target)) {
ERR_PRINT("Cannot resolve signal reference in documentation: '" + p_link_target + "'.");
}
_append_text_undeclared(p_output, p_link_target);
}
}
}
void BindingsGenerator::_append_text_enum(StringBuilder &p_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
const StringName search_cname = !p_target_itype ? p_target_cname : StringName(p_target_itype->name + "." + (String)p_target_cname);
HashMap<StringName, TypeInterface>::ConstIterator enum_match = enum_types.find(search_cname);
if (!enum_match && search_cname != p_target_cname) {
enum_match = enum_types.find(p_target_cname);
}
if (enum_match) {
const TypeInterface &target_enum_itype = enum_match->value;
p_output.append("'" BINDINGS_NAMESPACE ".");
p_output.append(target_enum_itype.proxy_name); // Includes nesting class if any
p_output.append("'");
} else {
if (!p_target_itype->is_intentionally_ignored(p_link_target)) {
ERR_PRINT("Cannot resolve enum reference in documentation: '" + p_link_target + "'.");
}
_append_text_undeclared(p_output, p_link_target);
}
}
void BindingsGenerator::_append_text_constant(StringBuilder &p_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
if (p_link_target_parts[0] == name_cache.type_at_GlobalScope) {
_append_text_constant_in_global_scope(p_output, p_target_cname, p_link_target);
} else if (!p_target_itype || !p_target_itype->is_object_type) {
// Search in @GlobalScope as a last resort if no class was specified
if (p_link_target_parts.size() == 1) {
_append_text_constant_in_global_scope(p_output, p_target_cname, p_link_target);
return;
}
if (OS::get_singleton()->is_stdout_verbose()) {
if (p_target_itype) {
OS::get_singleton()->print("Cannot resolve constant reference for non-GodotObject type in documentation: %s\n", p_link_target.utf8().get_data());
} else {
OS::get_singleton()->print("Cannot resolve type from constant reference in documentation: %s\n", p_link_target.utf8().get_data());
}
}
// TODO Map what we can
_append_text_undeclared(p_output, p_link_target);
} else {
// Try to find the constant in the current class
if (p_target_itype->is_singleton_instance) {
// Constants and enums are declared in the static singleton class.
p_target_itype = &obj_types[p_target_itype->cname];
}
const ConstantInterface *target_iconst = find_constant_by_name(p_target_cname, p_target_itype->constants);
if (target_iconst) {
// Found constant in current class
p_output.append("'" BINDINGS_NAMESPACE ".");
p_output.append(p_target_itype->proxy_name);
p_output.append(".");
p_output.append(target_iconst->proxy_name);
p_output.append("'");
} else {
// Try to find as enum constant in the current class
const EnumInterface *target_ienum = nullptr;
for (const EnumInterface &ienum : p_target_itype->enums) {
target_ienum = &ienum;
target_iconst = find_constant_by_name(p_target_cname, target_ienum->constants);
if (target_iconst) {
break;
}
}
if (target_iconst) {
p_output.append("'" BINDINGS_NAMESPACE ".");
p_output.append(p_target_itype->proxy_name);
p_output.append(".");
p_output.append(target_ienum->proxy_name);
p_output.append(".");
p_output.append(target_iconst->proxy_name);
p_output.append("'");
} else if (p_link_target_parts.size() == 1) {
// Also search in @GlobalScope as a last resort if no class was specified
_append_text_constant_in_global_scope(p_output, p_target_cname, p_link_target);
} else {
if (!p_target_itype->is_intentionally_ignored(p_link_target)) {
ERR_PRINT("Cannot resolve constant reference in documentation: '" + p_link_target + "'.");
}
_append_xml_undeclared(p_output, p_link_target);
}
}
}
}
void BindingsGenerator::_append_text_constant_in_global_scope(StringBuilder &p_output, const String &p_target_cname, const String &p_link_target) {
// Try to find as a global constant
const ConstantInterface *target_iconst = find_constant_by_name(p_target_cname, global_constants);
if (target_iconst) {
// Found global constant
p_output.append("'" BINDINGS_NAMESPACE "." BINDINGS_GLOBAL_SCOPE_CLASS ".");
p_output.append(target_iconst->proxy_name);
p_output.append("'");
} else {
// Try to find as global enum constant
const EnumInterface *target_ienum = nullptr;
for (const EnumInterface &ienum : global_enums) {
target_ienum = &ienum;
target_iconst = find_constant_by_name(p_target_cname, target_ienum->constants);
if (target_iconst) {
break;
}
}
if (target_iconst) {
p_output.append("'" BINDINGS_NAMESPACE ".");
p_output.append(target_ienum->proxy_name);
p_output.append(".");
p_output.append(target_iconst->proxy_name);
p_output.append("'");
} else {
ERR_PRINT("Cannot resolve global constant reference in documentation: '" + p_link_target + "'.");
_append_text_undeclared(p_output, p_link_target);
}
}
}
void BindingsGenerator::_append_text_param(StringBuilder &p_output, const String &p_link_target) {
const String link_target = snake_to_camel_case(p_link_target);
p_output.append("'" + link_target + "'");
}
void BindingsGenerator::_append_text_undeclared(StringBuilder &p_output, const String &p_link_target) {
p_output.append("'" + p_link_target + "'");
}
void BindingsGenerator::_append_xml_method(StringBuilder &p_xml_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
if (p_link_target_parts[0] == name_cache.type_at_GlobalScope) {
if (OS::get_singleton()->is_stdout_verbose()) {
OS::get_singleton()->print("Cannot resolve @GlobalScope method reference in documentation: %s\n", p_link_target.utf8().get_data());
}
// TODO Map what we can
_append_xml_undeclared(p_xml_output, p_link_target);
} else if (!p_target_itype || !p_target_itype->is_object_type) {
if (OS::get_singleton()->is_stdout_verbose()) {
if (p_target_itype) {
OS::get_singleton()->print("Cannot resolve method reference for non-GodotObject type in documentation: %s\n", p_link_target.utf8().get_data());
} else {
OS::get_singleton()->print("Cannot resolve type from method reference in documentation: %s\n", p_link_target.utf8().get_data());
}
}
// TODO Map what we can
_append_xml_undeclared(p_xml_output, p_link_target);
} else {
if (p_target_cname == "_init") {
// The _init method is not declared in C#, reference the constructor instead
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(p_target_itype->proxy_name);
p_xml_output.append(".");
p_xml_output.append(p_target_itype->proxy_name);
p_xml_output.append("()\"/>");
} else {
const MethodInterface *target_imethod = p_target_itype->find_method_by_name(p_target_cname);
if (target_imethod) {
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(p_target_itype->proxy_name);
p_xml_output.append(".");
p_xml_output.append(target_imethod->proxy_name);
p_xml_output.append("(");
bool first_key = true;
for (const ArgumentInterface &iarg : target_imethod->arguments) {
const TypeInterface *arg_type = _get_type_or_null(iarg.type);
if (first_key) {
first_key = false;
} else {
p_xml_output.append(", ");
}
if (!arg_type) {
ERR_PRINT("Cannot resolve argument type in documentation: '" + p_link_target + "'.");
p_xml_output.append(iarg.type.cname);
continue;
}
if (iarg.def_param_mode == ArgumentInterface::NULLABLE_VAL) {
p_xml_output.append("Nullable{");
}
String arg_cs_type = arg_type->cs_type + _get_generic_type_parameters(*arg_type, iarg.type.generic_type_parameters);
p_xml_output.append(arg_cs_type.replacen("<", "{").replacen(">", "}").replacen("params ", ""));
if (iarg.def_param_mode == ArgumentInterface::NULLABLE_VAL) {
p_xml_output.append("}");
}
}
p_xml_output.append(")\"/>");
} else {
if (!p_target_itype->is_intentionally_ignored(p_link_target)) {
ERR_PRINT("Cannot resolve method reference in documentation: '" + p_link_target + "'.");
}
_append_xml_undeclared(p_xml_output, p_link_target);
}
}
}
}
void BindingsGenerator::_append_xml_member(StringBuilder &p_xml_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
if (p_link_target.find("/") >= 0) {
// Properties with '/' (slash) in the name are not declared in C#, so there is nothing to reference.
_append_xml_undeclared(p_xml_output, p_link_target);
} else if (!p_target_itype || !p_target_itype->is_object_type) {
if (OS::get_singleton()->is_stdout_verbose()) {
if (p_target_itype) {
OS::get_singleton()->print("Cannot resolve member reference for non-GodotObject type in documentation: %s\n", p_link_target.utf8().get_data());
} else {
OS::get_singleton()->print("Cannot resolve type from member reference in documentation: %s\n", p_link_target.utf8().get_data());
}
}
// TODO Map what we can
_append_xml_undeclared(p_xml_output, p_link_target);
} else {
const TypeInterface *current_itype = p_target_itype;
const PropertyInterface *target_iprop = nullptr;
while (target_iprop == nullptr && current_itype != nullptr) {
target_iprop = current_itype->find_property_by_name(p_target_cname);
if (target_iprop == nullptr) {
current_itype = _get_type_or_null(TypeReference(current_itype->base_name));
}
}
if (target_iprop) {
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(current_itype->proxy_name);
p_xml_output.append(".");
p_xml_output.append(target_iprop->proxy_name);
p_xml_output.append("\"/>");
} else {
if (!p_target_itype->is_intentionally_ignored(p_link_target)) {
ERR_PRINT("Cannot resolve member reference in documentation: '" + p_link_target + "'.");
}
_append_xml_undeclared(p_xml_output, p_link_target);
}
}
}
void BindingsGenerator::_append_xml_signal(StringBuilder &p_xml_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
if (!p_target_itype || !p_target_itype->is_object_type) {
if (OS::get_singleton()->is_stdout_verbose()) {
if (p_target_itype) {
OS::get_singleton()->print("Cannot resolve signal reference for non-GodotObject type in documentation: %s\n", p_link_target.utf8().get_data());
} else {
OS::get_singleton()->print("Cannot resolve type from signal reference in documentation: %s\n", p_link_target.utf8().get_data());
}
}
// TODO Map what we can
_append_xml_undeclared(p_xml_output, p_link_target);
} else {
const SignalInterface *target_isignal = p_target_itype->find_signal_by_name(p_target_cname);
if (target_isignal) {
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(p_target_itype->proxy_name);
p_xml_output.append(".");
p_xml_output.append(target_isignal->proxy_name);
p_xml_output.append("\"/>");
} else {
if (!p_target_itype->is_intentionally_ignored(p_link_target)) {
ERR_PRINT("Cannot resolve signal reference in documentation: '" + p_link_target + "'.");
}
_append_xml_undeclared(p_xml_output, p_link_target);
}
}
}
void BindingsGenerator::_append_xml_enum(StringBuilder &p_xml_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
const StringName search_cname = !p_target_itype ? p_target_cname : StringName(p_target_itype->name + "." + (String)p_target_cname);
HashMap<StringName, TypeInterface>::ConstIterator enum_match = enum_types.find(search_cname);
if (!enum_match && search_cname != p_target_cname) {
enum_match = enum_types.find(p_target_cname);
}
if (enum_match) {
const TypeInterface &target_enum_itype = enum_match->value;
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(target_enum_itype.proxy_name); // Includes nesting class if any
p_xml_output.append("\"/>");
} else {
if (!p_target_itype->is_intentionally_ignored(p_link_target)) {
ERR_PRINT("Cannot resolve enum reference in documentation: '" + p_link_target + "'.");
}
_append_xml_undeclared(p_xml_output, p_link_target);
}
}
void BindingsGenerator::_append_xml_constant(StringBuilder &p_xml_output, const TypeInterface *p_target_itype, const StringName &p_target_cname, const String &p_link_target, const Vector<String> &p_link_target_parts) {
if (p_link_target_parts[0] == name_cache.type_at_GlobalScope) {
_append_xml_constant_in_global_scope(p_xml_output, p_target_cname, p_link_target);
} else if (!p_target_itype || !p_target_itype->is_object_type) {
// Search in @GlobalScope as a last resort if no class was specified
if (p_link_target_parts.size() == 1) {
_append_xml_constant_in_global_scope(p_xml_output, p_target_cname, p_link_target);
return;
}
if (OS::get_singleton()->is_stdout_verbose()) {
if (p_target_itype) {
OS::get_singleton()->print("Cannot resolve constant reference for non-GodotObject type in documentation: %s\n", p_link_target.utf8().get_data());
} else {
OS::get_singleton()->print("Cannot resolve type from constant reference in documentation: %s\n", p_link_target.utf8().get_data());
}
}
// TODO Map what we can
_append_xml_undeclared(p_xml_output, p_link_target);
} else {
// Try to find the constant in the current class
if (p_target_itype->is_singleton_instance) {
// Constants and enums are declared in the static singleton class.
p_target_itype = &obj_types[p_target_itype->cname];
}
const ConstantInterface *target_iconst = find_constant_by_name(p_target_cname, p_target_itype->constants);
if (target_iconst) {
// Found constant in current class
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(p_target_itype->proxy_name);
p_xml_output.append(".");
p_xml_output.append(target_iconst->proxy_name);
p_xml_output.append("\"/>");
} else {
// Try to find as enum constant in the current class
const EnumInterface *target_ienum = nullptr;
for (const EnumInterface &ienum : p_target_itype->enums) {
target_ienum = &ienum;
target_iconst = find_constant_by_name(p_target_cname, target_ienum->constants);
if (target_iconst) {
break;
}
}
if (target_iconst) {
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(p_target_itype->proxy_name);
p_xml_output.append(".");
p_xml_output.append(target_ienum->proxy_name);
p_xml_output.append(".");
p_xml_output.append(target_iconst->proxy_name);
p_xml_output.append("\"/>");
} else if (p_link_target_parts.size() == 1) {
// Also search in @GlobalScope as a last resort if no class was specified
_append_xml_constant_in_global_scope(p_xml_output, p_target_cname, p_link_target);
} else {
if (!p_target_itype->is_intentionally_ignored(p_link_target)) {
ERR_PRINT("Cannot resolve constant reference in documentation: '" + p_link_target + "'.");
}
_append_xml_undeclared(p_xml_output, p_link_target);
}
}
}
}
void BindingsGenerator::_append_xml_constant_in_global_scope(StringBuilder &p_xml_output, const String &p_target_cname, const String &p_link_target) {
// Try to find as a global constant
const ConstantInterface *target_iconst = find_constant_by_name(p_target_cname, global_constants);
if (target_iconst) {
// Found global constant
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE "." BINDINGS_GLOBAL_SCOPE_CLASS ".");
p_xml_output.append(target_iconst->proxy_name);
p_xml_output.append("\"/>");
} else {
// Try to find as global enum constant
const EnumInterface *target_ienum = nullptr;
for (const EnumInterface &ienum : global_enums) {
target_ienum = &ienum;
target_iconst = find_constant_by_name(p_target_cname, target_ienum->constants);
if (target_iconst) {
break;
}
}
if (target_iconst) {
p_xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
p_xml_output.append(target_ienum->proxy_name);
p_xml_output.append(".");
p_xml_output.append(target_iconst->proxy_name);
p_xml_output.append("\"/>");
} else {
ERR_PRINT("Cannot resolve global constant reference in documentation: '" + p_link_target + "'.");
_append_xml_undeclared(p_xml_output, p_link_target);
}
}
}
void BindingsGenerator::_append_xml_param(StringBuilder &p_xml_output, const String &p_link_target, bool p_is_signal) {
const String link_target = snake_to_camel_case(p_link_target);
if (!p_is_signal) {
p_xml_output.append("<paramref name=\"");
p_xml_output.append(link_target);
p_xml_output.append("\"/>");
} else {
// Documentation in C# is added to an event, not the delegate itself;
// as such, we treat these parameters as codeblocks instead.
// See: https://github.com/godotengine/godot/pull/65529
_append_xml_undeclared(p_xml_output, link_target);
}
}
void BindingsGenerator::_append_xml_undeclared(StringBuilder &p_xml_output, const String &p_link_target) {
p_xml_output.append("<c>");
p_xml_output.append(p_link_target);
p_xml_output.append("</c>");
}
int BindingsGenerator::_determine_enum_prefix(const EnumInterface &p_ienum) {
CRASH_COND(p_ienum.constants.is_empty());
const ConstantInterface &front_iconstant = p_ienum.constants.front()->get();
Vector<String> front_parts = front_iconstant.name.split("_", /* p_allow_empty: */ true);
int candidate_len = front_parts.size() - 1;
if (candidate_len == 0) {
return 0;
}
for (const ConstantInterface &iconstant : p_ienum.constants) {
Vector<String> parts = iconstant.name.split("_", /* p_allow_empty: */ true);
int i;
for (i = 0; i < candidate_len && i < parts.size(); i++) {
if (front_parts[i] != parts[i]) {
// HARDCODED: Some Flag enums have the prefix 'FLAG_' for everything except 'FLAGS_DEFAULT' (same for 'METHOD_FLAG_' and'METHOD_FLAGS_DEFAULT').
bool hardcoded_exc = (i == candidate_len - 1 && ((front_parts[i] == "FLAGS" && parts[i] == "FLAG") || (front_parts[i] == "FLAG" && parts[i] == "FLAGS")));
if (!hardcoded_exc) {
break;
}
}
}
candidate_len = i;
if (candidate_len == 0) {
return 0;
}
}
return candidate_len;
}
void BindingsGenerator::_apply_prefix_to_enum_constants(BindingsGenerator::EnumInterface &p_ienum, int p_prefix_length) {
if (p_prefix_length > 0) {
for (ConstantInterface &iconstant : p_ienum.constants) {
int curr_prefix_length = p_prefix_length;
String constant_name = iconstant.name;
Vector<String> parts = constant_name.split("_", /* p_allow_empty: */ true);
if (parts.size() <= curr_prefix_length) {
continue;
}
if (is_digit(parts[curr_prefix_length][0])) {
// The name of enum constants may begin with a numeric digit when strip from the enum prefix,
// so we make the prefix for this constant one word shorter in those cases.
for (curr_prefix_length = curr_prefix_length - 1; curr_prefix_length > 0; curr_prefix_length--) {
if (!is_digit(parts[curr_prefix_length][0])) {
break;
}
}
}
constant_name = "";
for (int i = curr_prefix_length; i < parts.size(); i++) {
if (i > curr_prefix_length) {
constant_name += "_";
}
constant_name += parts[i];
}
iconstant.proxy_name = snake_to_pascal_case(constant_name, true);
}
}
}
Error BindingsGenerator::_populate_method_icalls_table(const TypeInterface &p_itype) {
for (const MethodInterface &imethod : p_itype.methods) {
if (imethod.is_virtual) {
continue;
}
const TypeInterface *return_type = _get_type_or_null(imethod.return_type);
ERR_FAIL_NULL_V(return_type, ERR_BUG); // Return type not found
String im_unique_sig = get_ret_unique_sig(return_type) + ",CallMethodBind";
if (!imethod.is_static) {
im_unique_sig += ",CallInstance";
}
// Get arguments information
for (const ArgumentInterface &iarg : imethod.arguments) {
const TypeInterface *arg_type = _get_type_or_null(iarg.type);
ERR_FAIL_NULL_V(arg_type, ERR_BUG); // Argument type not found
im_unique_sig += ",";
im_unique_sig += get_arg_unique_sig(*arg_type);
}
// godot_icall_{argc}_{icallcount}
String icall_method = ICALL_PREFIX;
icall_method += itos(imethod.arguments.size());
icall_method += "_";
icall_method += itos(method_icalls.size());
InternalCall im_icall = InternalCall(p_itype.api_type, icall_method, im_unique_sig);
im_icall.is_vararg = imethod.is_vararg;
im_icall.is_static = imethod.is_static;
im_icall.return_type = imethod.return_type;
for (const List<ArgumentInterface>::Element *F = imethod.arguments.front(); F; F = F->next()) {
im_icall.argument_types.push_back(F->get().type);
}
List<InternalCall>::Element *match = method_icalls.find(im_icall);
if (match) {
if (p_itype.api_type != ClassDB::API_EDITOR) {
match->get().editor_only = false;
}
method_icalls_map.insert(&imethod, &match->get());
} else {
List<InternalCall>::Element *added = method_icalls.push_back(im_icall);
method_icalls_map.insert(&imethod, &added->get());
}
}
return OK;
}
void BindingsGenerator::_generate_array_extensions(StringBuilder &p_output) {
p_output.append("namespace " BINDINGS_NAMESPACE ";\n\n");
p_output.append("using System;\n\n");
// The class where we put the extensions doesn't matter, so just use "GD".
p_output.append("public static partial class " BINDINGS_GLOBAL_SCOPE_CLASS "\n{");
#define ARRAY_IS_EMPTY(m_type) \
p_output.append("\n" INDENT1 "/// <summary>\n"); \
p_output.append(INDENT1 "/// Returns true if this " #m_type " array is empty or doesn't exist.\n"); \
p_output.append(INDENT1 "/// </summary>\n"); \
p_output.append(INDENT1 "/// <param name=\"instance\">The " #m_type " array check.</param>\n"); \
p_output.append(INDENT1 "/// <returns>Whether or not the array is empty.</returns>\n"); \
p_output.append(INDENT1 "public static bool IsEmpty(this " #m_type "[] instance)\n"); \
p_output.append(OPEN_BLOCK_L1); \
p_output.append(INDENT2 "return instance == null || instance.Length == 0;\n"); \
p_output.append(INDENT1 CLOSE_BLOCK);
#define ARRAY_JOIN(m_type) \
p_output.append("\n" INDENT1 "/// <summary>\n"); \
p_output.append(INDENT1 "/// Converts this " #m_type " array to a string delimited by the given string.\n"); \
p_output.append(INDENT1 "/// </summary>\n"); \
p_output.append(INDENT1 "/// <param name=\"instance\">The " #m_type " array to convert.</param>\n"); \
p_output.append(INDENT1 "/// <param name=\"delimiter\">The delimiter to use between items.</param>\n"); \
p_output.append(INDENT1 "/// <returns>A single string with all items.</returns>\n"); \
p_output.append(INDENT1 "public static string Join(this " #m_type "[] instance, string delimiter = \", \")\n"); \
p_output.append(OPEN_BLOCK_L1); \
p_output.append(INDENT2 "return String.Join(delimiter, instance);\n"); \
p_output.append(INDENT1 CLOSE_BLOCK);
#define ARRAY_STRINGIFY(m_type) \
p_output.append("\n" INDENT1 "/// <summary>\n"); \
p_output.append(INDENT1 "/// Converts this " #m_type " array to a string with brackets.\n"); \
p_output.append(INDENT1 "/// </summary>\n"); \
p_output.append(INDENT1 "/// <param name=\"instance\">The " #m_type " array to convert.</param>\n"); \
p_output.append(INDENT1 "/// <returns>A single string with all items.</returns>\n"); \
p_output.append(INDENT1 "public static string Stringify(this " #m_type "[] instance)\n"); \
p_output.append(OPEN_BLOCK_L1); \
p_output.append(INDENT2 "return \"[\" + instance.Join() + \"]\";\n"); \
p_output.append(INDENT1 CLOSE_BLOCK);
#define ARRAY_ALL(m_type) \
ARRAY_IS_EMPTY(m_type) \
ARRAY_JOIN(m_type) \
ARRAY_STRINGIFY(m_type)
ARRAY_ALL(byte);
ARRAY_ALL(int);
ARRAY_ALL(long);
ARRAY_ALL(float);
ARRAY_ALL(double);
ARRAY_ALL(string);
ARRAY_ALL(Color);
ARRAY_ALL(Vector2);
ARRAY_ALL(Vector2I);
ARRAY_ALL(Vector3);
ARRAY_ALL(Vector3I);
ARRAY_ALL(Vector4);
ARRAY_ALL(Vector4I);
#undef ARRAY_ALL
#undef ARRAY_IS_EMPTY
#undef ARRAY_JOIN
#undef ARRAY_STRINGIFY
p_output.append(CLOSE_BLOCK); // End of GD class.
}
void BindingsGenerator::_generate_global_constants(StringBuilder &p_output) {
// Constants (in partial GD class)
p_output.append("namespace " BINDINGS_NAMESPACE ";\n\n");
p_output.append("public static partial class " BINDINGS_GLOBAL_SCOPE_CLASS "\n" OPEN_BLOCK);
for (const ConstantInterface &iconstant : global_constants) {
if (iconstant.const_doc && iconstant.const_doc->description.size()) {
String xml_summary = bbcode_to_xml(fix_doc_description(iconstant.const_doc->description), nullptr);
Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
if (summary_lines.size()) {
p_output.append(MEMBER_BEGIN "/// <summary>\n");
for (int i = 0; i < summary_lines.size(); i++) {
p_output.append(INDENT1 "/// ");
p_output.append(summary_lines[i]);
p_output.append("\n");
}
p_output.append(INDENT1 "/// </summary>");
}
}
p_output.append(MEMBER_BEGIN "public const long ");
p_output.append(iconstant.proxy_name);
p_output.append(" = ");
p_output.append(itos(iconstant.value));
p_output.append(";");
}
if (!global_constants.is_empty()) {
p_output.append("\n");
}
p_output.append(CLOSE_BLOCK); // end of GD class
// Enums
for (const EnumInterface &ienum : global_enums) {
CRASH_COND(ienum.constants.is_empty());
String enum_proxy_name = ienum.proxy_name;
bool enum_in_static_class = false;
if (enum_proxy_name.find(".") > 0) {
enum_in_static_class = true;
String enum_class_name = enum_proxy_name.get_slicec('.', 0);
enum_proxy_name = enum_proxy_name.get_slicec('.', 1);
CRASH_COND(enum_class_name != "Variant"); // Hard-coded...
_log("Declaring global enum '%s' inside struct '%s'\n", enum_proxy_name.utf8().get_data(), enum_class_name.utf8().get_data());
p_output << "\npublic partial struct " << enum_class_name << "\n" OPEN_BLOCK;
}
const String maybe_indent = !enum_in_static_class ? "" : INDENT1;
if (ienum.is_flags) {
p_output << "\n"
<< maybe_indent << "[System.Flags]";
}
p_output << "\n"
<< maybe_indent << "public enum " << enum_proxy_name << " : long"
<< "\n"
<< maybe_indent << OPEN_BLOCK;
for (const ConstantInterface &iconstant : ienum.constants) {
if (iconstant.const_doc && iconstant.const_doc->description.size()) {
String xml_summary = bbcode_to_xml(fix_doc_description(iconstant.const_doc->description), nullptr);
Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
if (summary_lines.size()) {
p_output << maybe_indent << INDENT1 "/// <summary>\n";
for (int i = 0; i < summary_lines.size(); i++) {
p_output << maybe_indent << INDENT1 "/// " << summary_lines[i] << "\n";
}
p_output << maybe_indent << INDENT1 "/// </summary>\n";
}
}
p_output << maybe_indent << INDENT1
<< iconstant.proxy_name
<< " = "
<< itos(iconstant.value)
<< ",\n";
}
p_output << maybe_indent << CLOSE_BLOCK;
if (enum_in_static_class) {
p_output << CLOSE_BLOCK;
}
}
}
Error BindingsGenerator::generate_cs_core_project(const String &p_proj_dir) {
ERR_FAIL_COND_V(!initialized, ERR_UNCONFIGURED);
Ref<DirAccess> da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
ERR_FAIL_COND_V(da.is_null(), ERR_CANT_CREATE);
if (!DirAccess::exists(p_proj_dir)) {
Error err = da->make_dir_recursive(p_proj_dir);
ERR_FAIL_COND_V_MSG(err != OK, ERR_CANT_CREATE, "Cannot create directory '" + p_proj_dir + "'.");
}
da->change_dir(p_proj_dir);
da->make_dir("Generated");
da->make_dir("Generated/GodotObjects");
String base_gen_dir = path::join(p_proj_dir, "Generated");
String godot_objects_gen_dir = path::join(base_gen_dir, "GodotObjects");
Vector<String> compile_items;
// Generate source file for global scope constants and enums
{
StringBuilder constants_source;
_generate_global_constants(constants_source);
String output_file = path::join(base_gen_dir, BINDINGS_GLOBAL_SCOPE_CLASS "_constants.cs");
Error save_err = _save_file(output_file, constants_source);
if (save_err != OK) {
return save_err;
}
compile_items.push_back(output_file);
}
// Generate source file for array extensions
{
StringBuilder extensions_source;
_generate_array_extensions(extensions_source);
String output_file = path::join(base_gen_dir, BINDINGS_GLOBAL_SCOPE_CLASS "_extensions.cs");
Error save_err = _save_file(output_file, extensions_source);
if (save_err != OK) {
return save_err;
}
compile_items.push_back(output_file);
}
for (const KeyValue<StringName, TypeInterface> &E : obj_types) {
const TypeInterface &itype = E.value;
if (itype.api_type == ClassDB::API_EDITOR) {
continue;
}
String output_file = path::join(godot_objects_gen_dir, itype.proxy_name + ".cs");
Error err = _generate_cs_type(itype, output_file);
if (err == ERR_SKIP) {
continue;
}
if (err != OK) {
return err;
}
compile_items.push_back(output_file);
}
// Generate native calls
StringBuilder cs_icalls_content;
cs_icalls_content.append("namespace " BINDINGS_NAMESPACE ";\n\n");
cs_icalls_content.append("using System;\n"
"using System.Diagnostics.CodeAnalysis;\n"
"using System.Runtime.InteropServices;\n"
"using Godot.NativeInterop;\n"
"\n");
cs_icalls_content.append("[SuppressMessage(\"ReSharper\", \"InconsistentNaming\")]\n");
cs_icalls_content.append("[SuppressMessage(\"ReSharper\", \"RedundantUnsafeContext\")]\n");
cs_icalls_content.append("[SuppressMessage(\"ReSharper\", \"RedundantNameQualifier\")]\n");
cs_icalls_content.append("[System.Runtime.CompilerServices.SkipLocalsInit]\n");
cs_icalls_content.append("internal static class " BINDINGS_CLASS_NATIVECALLS "\n{");
cs_icalls_content.append(MEMBER_BEGIN "internal static ulong godot_api_hash = ");
cs_icalls_content.append(String::num_uint64(ClassDB::get_api_hash(ClassDB::API_CORE)) + ";\n");
cs_icalls_content.append(MEMBER_BEGIN "private const int VarArgsSpanThreshold = 10;\n");
for (const InternalCall &icall : method_icalls) {
if (icall.editor_only) {
continue;
}
Error err = _generate_cs_native_calls(icall, cs_icalls_content);
if (err != OK) {
return err;
}
}
cs_icalls_content.append(CLOSE_BLOCK);
String internal_methods_file = path::join(base_gen_dir, BINDINGS_CLASS_NATIVECALLS ".cs");
Error err = _save_file(internal_methods_file, cs_icalls_content);
if (err != OK) {
return err;
}
compile_items.push_back(internal_methods_file);
// Generate GeneratedIncludes.props
StringBuilder includes_props_content;
includes_props_content.append("<Project>\n"
" <ItemGroup>\n");
for (int i = 0; i < compile_items.size(); i++) {
String include = path::relative_to(compile_items[i], p_proj_dir).replace("/", "\\");
includes_props_content.append(" <Compile Include=\"" + include + "\" />\n");
}
includes_props_content.append(" </ItemGroup>\n"
"</Project>\n");
String includes_props_file = path::join(base_gen_dir, "GeneratedIncludes.props");
err = _save_file(includes_props_file, includes_props_content);
if (err != OK) {
return err;
}
return OK;
}
Error BindingsGenerator::generate_cs_editor_project(const String &p_proj_dir) {
ERR_FAIL_COND_V(!initialized, ERR_UNCONFIGURED);
Ref<DirAccess> da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
ERR_FAIL_COND_V(da.is_null(), ERR_CANT_CREATE);
if (!DirAccess::exists(p_proj_dir)) {
Error err = da->make_dir_recursive(p_proj_dir);
ERR_FAIL_COND_V(err != OK, ERR_CANT_CREATE);
}
da->change_dir(p_proj_dir);
da->make_dir("Generated");
da->make_dir("Generated/GodotObjects");
String base_gen_dir = path::join(p_proj_dir, "Generated");
String godot_objects_gen_dir = path::join(base_gen_dir, "GodotObjects");
Vector<String> compile_items;
for (const KeyValue<StringName, TypeInterface> &E : obj_types) {
const TypeInterface &itype = E.value;
if (itype.api_type != ClassDB::API_EDITOR) {
continue;
}
String output_file = path::join(godot_objects_gen_dir, itype.proxy_name + ".cs");
Error err = _generate_cs_type(itype, output_file);
if (err == ERR_SKIP) {
continue;
}
if (err != OK) {
return err;
}
compile_items.push_back(output_file);
}
// Generate native calls
StringBuilder cs_icalls_content;
cs_icalls_content.append("namespace " BINDINGS_NAMESPACE ";\n\n");
cs_icalls_content.append("using System;\n"
"using System.Diagnostics.CodeAnalysis;\n"
"using System.Runtime.InteropServices;\n"
"using Godot.NativeInterop;\n"
"\n");
cs_icalls_content.append("[SuppressMessage(\"ReSharper\", \"InconsistentNaming\")]\n");
cs_icalls_content.append("[SuppressMessage(\"ReSharper\", \"RedundantUnsafeContext\")]\n");
cs_icalls_content.append("[SuppressMessage(\"ReSharper\", \"RedundantNameQualifier\")]\n");
cs_icalls_content.append("[System.Runtime.CompilerServices.SkipLocalsInit]\n");
cs_icalls_content.append("internal static class " BINDINGS_CLASS_NATIVECALLS_EDITOR "\n" OPEN_BLOCK);
cs_icalls_content.append(INDENT1 "internal static ulong godot_api_hash = ");
cs_icalls_content.append(String::num_uint64(ClassDB::get_api_hash(ClassDB::API_EDITOR)) + ";\n");
cs_icalls_content.append(MEMBER_BEGIN "private const int VarArgsSpanThreshold = 10;\n");
cs_icalls_content.append("\n");
for (const InternalCall &icall : method_icalls) {
if (!icall.editor_only) {
continue;
}
Error err = _generate_cs_native_calls(icall, cs_icalls_content);
if (err != OK) {
return err;
}
}
cs_icalls_content.append(CLOSE_BLOCK);
String internal_methods_file = path::join(base_gen_dir, BINDINGS_CLASS_NATIVECALLS_EDITOR ".cs");
Error err = _save_file(internal_methods_file, cs_icalls_content);
if (err != OK) {
return err;
}
compile_items.push_back(internal_methods_file);
// Generate GeneratedIncludes.props
StringBuilder includes_props_content;
includes_props_content.append("<Project>\n"
" <ItemGroup>\n");
for (int i = 0; i < compile_items.size(); i++) {
String include = path::relative_to(compile_items[i], p_proj_dir).replace("/", "\\");
includes_props_content.append(" <Compile Include=\"" + include + "\" />\n");
}
includes_props_content.append(" </ItemGroup>\n"
"</Project>\n");
String includes_props_file = path::join(base_gen_dir, "GeneratedIncludes.props");
err = _save_file(includes_props_file, includes_props_content);
if (err != OK) {
return err;
}
return OK;
}
Error BindingsGenerator::generate_cs_api(const String &p_output_dir) {
ERR_FAIL_COND_V(!initialized, ERR_UNCONFIGURED);
String output_dir = path::abspath(path::realpath(p_output_dir));
Ref<DirAccess> da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
ERR_FAIL_COND_V(da.is_null(), ERR_CANT_CREATE);
if (!DirAccess::exists(output_dir)) {
Error err = da->make_dir_recursive(output_dir);
ERR_FAIL_COND_V(err != OK, ERR_CANT_CREATE);
}
Error proj_err;
// Generate GodotSharp source files
String core_proj_dir = output_dir.path_join(CORE_API_ASSEMBLY_NAME);
proj_err = generate_cs_core_project(core_proj_dir);
if (proj_err != OK) {
ERR_PRINT("Generation of the Core API C# project failed.");
return proj_err;
}
// Generate GodotSharpEditor source files
String editor_proj_dir = output_dir.path_join(EDITOR_API_ASSEMBLY_NAME);
proj_err = generate_cs_editor_project(editor_proj_dir);
if (proj_err != OK) {
ERR_PRINT("Generation of the Editor API C# project failed.");
return proj_err;
}
_log("The Godot API sources were successfully generated\n");
return OK;
}
// FIXME: There are some members that hide other inherited members.
// - In the case of both members being the same kind, the new one must be declared
// explicitly as 'new' to avoid the warning (and we must print a message about it).
// - In the case of both members being of a different kind, then the new one must
// be renamed to avoid the name collision (and we must print a warning about it).
// - Csc warning e.g.:
// ObjectType/LineEdit.cs(140,38): warning CS0108: 'LineEdit.FocusMode' hides inherited member 'Control.FocusMode'. Use the new keyword if hiding was intended.
Error BindingsGenerator::_generate_cs_type(const TypeInterface &itype, const String &p_output_file) {
CRASH_COND(!itype.is_object_type);
bool is_derived_type = itype.base_name != StringName();
if (!is_derived_type) {
// Some GodotObject assertions
CRASH_COND(itype.cname != name_cache.type_Object);
CRASH_COND(!itype.is_instantiable);
CRASH_COND(itype.api_type != ClassDB::API_CORE);
CRASH_COND(itype.is_ref_counted);
CRASH_COND(itype.is_singleton);
}
_log("Generating %s.cs...\n", itype.proxy_name.utf8().get_data());
StringBuilder output;
output.append("namespace " BINDINGS_NAMESPACE ";\n\n");
output.append("using System;\n"); // IntPtr
output.append("using System.ComponentModel;\n"); // EditorBrowsable
output.append("using System.Diagnostics;\n"); // DebuggerBrowsable
output.append("using Godot.NativeInterop;\n");
output.append("\n#nullable disable\n");
const DocData::ClassDoc *class_doc = itype.class_doc;
if (class_doc && class_doc->description.size()) {
String xml_summary = bbcode_to_xml(fix_doc_description(class_doc->description), &itype);
Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
if (summary_lines.size()) {
output.append("/// <summary>\n");
for (int i = 0; i < summary_lines.size(); i++) {
output.append("/// ");
output.append(summary_lines[i]);
output.append("\n");
}
output.append("/// </summary>\n");
}
}
if (itype.is_deprecated) {
output.append("[Obsolete(\"");
output.append(bbcode_to_text(itype.deprecation_message, &itype));
output.append("\")]\n");
}
// We generate a `GodotClassName` attribute if the engine class name is not the same as the
// generated C# class name. This allows introspection code to find the name associated with
// the class. If the attribute is not present, the C# class name can be used instead.
if (itype.name != itype.proxy_name) {
output << "[GodotClassName(\"" << itype.name << "\")]\n";
}
output.append("public ");
if (itype.is_singleton) {
output.append("static partial class ");
} else {
// Even if the class is not instantiable, we can't declare it abstract because
// the engine can still instantiate them and return them via the scripting API.
// Example: `SceneTreeTimer` returned from `SceneTree.create_timer`.
// See the reverted commit: ef5672d3f94a7321ed779c922088bb72adbb1521
output.append("partial class ");
}
output.append(itype.proxy_name);
if (is_derived_type && !itype.is_singleton) {
if (obj_types.has(itype.base_name)) {
TypeInterface base_type = obj_types[itype.base_name];
output.append(" : ");
output.append(base_type.proxy_name);
if (base_type.is_singleton) {
// If the type is a singleton, use the instance type.
output.append(CS_SINGLETON_INSTANCE_SUFFIX);
}
} else {
ERR_PRINT("Base type '" + itype.base_name.operator String() + "' does not exist, for class '" + itype.name + "'.");
return ERR_INVALID_DATA;
}
}
output.append("\n{");
// Add constants
for (const ConstantInterface &iconstant : itype.constants) {
if (iconstant.const_doc && iconstant.const_doc->description.size()) {
String xml_summary = bbcode_to_xml(fix_doc_description(iconstant.const_doc->description), &itype);
Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
if (summary_lines.size()) {
output.append(MEMBER_BEGIN "/// <summary>\n");
for (int i = 0; i < summary_lines.size(); i++) {
output.append(INDENT1 "/// ");
output.append(summary_lines[i]);
output.append("\n");
}
output.append(INDENT1 "/// </summary>");
}
}
if (iconstant.is_deprecated) {
output.append(MEMBER_BEGIN "[Obsolete(\"");
output.append(bbcode_to_text(iconstant.deprecation_message, &itype));
output.append("\")]");
}
output.append(MEMBER_BEGIN "public const long ");
output.append(iconstant.proxy_name);
output.append(" = ");
output.append(itos(iconstant.value));
output.append(";");
}
if (itype.constants.size()) {
output.append("\n");
}
// Add enums
for (const EnumInterface &ienum : itype.enums) {
ERR_FAIL_COND_V(ienum.constants.is_empty(), ERR_BUG);
if (ienum.is_flags) {
output.append(MEMBER_BEGIN "[System.Flags]");
}
output.append(MEMBER_BEGIN "public enum ");
output.append(ienum.proxy_name);
output.append(" : long");
output.append(MEMBER_BEGIN OPEN_BLOCK);
const ConstantInterface &last = ienum.constants.back()->get();
for (const ConstantInterface &iconstant : ienum.constants) {
if (iconstant.const_doc && iconstant.const_doc->description.size()) {
String xml_summary = bbcode_to_xml(fix_doc_description(iconstant.const_doc->description), &itype);
Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
if (summary_lines.size()) {
output.append(INDENT2 "/// <summary>\n");
for (int i = 0; i < summary_lines.size(); i++) {
output.append(INDENT2 "/// ");
output.append(summary_lines[i]);
output.append("\n");
}
output.append(INDENT2 "/// </summary>\n");
}
}
if (iconstant.is_deprecated) {
output.append(INDENT2 "[Obsolete(\"");
output.append(bbcode_to_text(iconstant.deprecation_message, &itype));
output.append("\")]\n");
}
output.append(INDENT2);
output.append(iconstant.proxy_name);
output.append(" = ");
output.append(itos(iconstant.value));
output.append(&iconstant != &last ? ",\n" : "\n");
}
output.append(INDENT1 CLOSE_BLOCK);
}
// Add properties
for (const PropertyInterface &iprop : itype.properties) {
Error prop_err = _generate_cs_property(itype, iprop, output);
ERR_FAIL_COND_V_MSG(prop_err != OK, prop_err,
"Failed to generate property '" + iprop.cname.operator String() +
"' for class '" + itype.name + "'.");
}
// Add native name static field and cached type.
if (is_derived_type && !itype.is_singleton) {
output << MEMBER_BEGIN "private static readonly System.Type CachedType = typeof(" << itype.proxy_name << ");\n";
}
output.append(MEMBER_BEGIN "private static readonly StringName " BINDINGS_NATIVE_NAME_FIELD " = \"");
output.append(itype.name);
output.append("\";\n");
if (itype.is_singleton || itype.is_compat_singleton) {
// Add the Singleton static property.
String instance_type_name;
if (itype.is_singleton) {
StringName instance_name = itype.name + CS_SINGLETON_INSTANCE_SUFFIX;
instance_type_name = obj_types.has(instance_name)
? obj_types[instance_name].proxy_name
: "GodotObject";
} else {
instance_type_name = itype.proxy_name;
}
output.append(MEMBER_BEGIN "private static " + instance_type_name + " singleton;\n");
output << MEMBER_BEGIN "public static " + instance_type_name + " " CS_PROPERTY_SINGLETON " =>\n"
<< INDENT2 "singleton \?\?= (" + instance_type_name + ")"
<< C_METHOD_ENGINE_GET_SINGLETON "(\"" << itype.name << "\");\n";
}
if (!itype.is_singleton) {
// IMPORTANT: We also generate the static fields for GodotObject instead of declaring
// them manually in the `GodotObject.base.cs` partial class declaration, because they're
// required by other static fields in this generated partial class declaration.
// Static fields are initialized in order of declaration, but when they're in different
// partial class declarations then it becomes harder to tell (Rider warns about this).
if (itype.is_instantiable) {
// Add native constructor static field
output << MEMBER_BEGIN << "[DebuggerBrowsable(DebuggerBrowsableState.Never)]\n"
<< INDENT1 "private static readonly unsafe delegate* unmanaged<IntPtr> "
<< CS_STATIC_FIELD_NATIVE_CTOR " = " ICALL_CLASSDB_GET_CONSTRUCTOR
<< "(" BINDINGS_NATIVE_NAME_FIELD ");\n";
}
if (is_derived_type) {
// Add default constructor
if (itype.is_instantiable) {
output << MEMBER_BEGIN "public " << itype.proxy_name << "() : this("
<< (itype.memory_own ? "true" : "false") << ")\n" OPEN_BLOCK_L1
<< INDENT2 "unsafe\n" INDENT2 OPEN_BLOCK
<< INDENT3 "ConstructAndInitialize(" CS_STATIC_FIELD_NATIVE_CTOR ", "
<< BINDINGS_NATIVE_NAME_FIELD ", CachedType, refCounted: "
<< (itype.is_ref_counted ? "true" : "false") << ");\n"
<< CLOSE_BLOCK_L2 CLOSE_BLOCK_L1;
} else {
// Hide the constructor
output << MEMBER_BEGIN "internal " << itype.proxy_name << "() : this("
<< (itype.memory_own ? "true" : "false") << ")\n" OPEN_BLOCK_L1
<< INDENT2 "unsafe\n" INDENT2 OPEN_BLOCK
<< INDENT3 "ConstructAndInitialize(null, "
<< BINDINGS_NATIVE_NAME_FIELD ", CachedType, refCounted: "
<< (itype.is_ref_counted ? "true" : "false") << ");\n"
<< CLOSE_BLOCK_L2 CLOSE_BLOCK_L1;
}
// Add.. em.. trick constructor. Sort of.
output.append(MEMBER_BEGIN "internal ");
output.append(itype.proxy_name);
output.append("(bool " CS_PARAM_MEMORYOWN ") : base(" CS_PARAM_MEMORYOWN ") { }\n");
}
}
// Methods
int method_bind_count = 0;
for (const MethodInterface &imethod : itype.methods) {
Error method_err = _generate_cs_method(itype, imethod, method_bind_count, output);
ERR_FAIL_COND_V_MSG(method_err != OK, method_err,
"Failed to generate method '" + imethod.name + "' for class '" + itype.name + "'.");
}
// Signals
for (const SignalInterface &isignal : itype.signals_) {
Error method_err = _generate_cs_signal(itype, isignal, output);
ERR_FAIL_COND_V_MSG(method_err != OK, method_err,
"Failed to generate signal '" + isignal.name + "' for class '" + itype.name + "'.");
}
// Script members look-up
if (!itype.is_singleton && (is_derived_type || itype.has_virtual_methods)) {
// Generate method names cache fields
for (const MethodInterface &imethod : itype.methods) {
if (!imethod.is_virtual) {
continue;
}
output << MEMBER_BEGIN "// ReSharper disable once InconsistentNaming\n"
<< INDENT1 "[DebuggerBrowsable(DebuggerBrowsableState.Never)]\n"
<< INDENT1 "private static readonly StringName "
<< CS_STATIC_FIELD_METHOD_PROXY_NAME_PREFIX << imethod.name
<< " = \"" << imethod.proxy_name << "\";\n";
}
// Generate signal names cache fields
for (const SignalInterface &isignal : itype.signals_) {
output << MEMBER_BEGIN "// ReSharper disable once InconsistentNaming\n"
<< INDENT1 "[DebuggerBrowsable(DebuggerBrowsableState.Never)]\n"
<< INDENT1 "private static readonly StringName "
<< CS_STATIC_FIELD_SIGNAL_PROXY_NAME_PREFIX << isignal.name
<< " = \"" << isignal.proxy_name << "\";\n";
}
// TODO: Only generate HasGodotClassMethod and InvokeGodotClassMethod if there's any method
// Generate InvokeGodotClassMethod
output << MEMBER_BEGIN "/// <summary>\n"
<< INDENT1 "/// Invokes the method with the given name, using the given arguments.\n"
<< INDENT1 "/// This method is used by Godot to invoke methods from the engine side.\n"
<< INDENT1 "/// Do not call or override this method.\n"
<< INDENT1 "/// </summary>\n"
<< INDENT1 "/// <param name=\"method\">Name of the method to invoke.</param>\n"
<< INDENT1 "/// <param name=\"args\">Arguments to use with the invoked method.</param>\n"
<< INDENT1 "/// <param name=\"ret\">Value returned by the invoked method.</param>\n";
// Avoid raising diagnostics because of calls to obsolete methods.
output << "#pragma warning disable CS0618 // Member is obsolete\n";
output << INDENT1 "protected internal " << (is_derived_type ? "override" : "virtual")
<< " bool " CS_METHOD_INVOKE_GODOT_CLASS_METHOD "(in godot_string_name method, "
<< "NativeVariantPtrArgs args, out godot_variant ret)\n"
<< INDENT1 "{\n";
for (const MethodInterface &imethod : itype.methods) {
if (!imethod.is_virtual) {
continue;
}
// We also call HasGodotClassMethod to ensure the method is overridden and avoid calling
// the stub implementation. This solution adds some extra overhead to calls, but it's
// much simpler than other solutions. This won't be a problem once we move to function
// pointers of generated wrappers for each method, as lookup will only happen once.
// We check both native names (snake_case) and proxy names (PascalCase)
output << INDENT2 "if ((method == " << CS_STATIC_FIELD_METHOD_PROXY_NAME_PREFIX << imethod.name
<< " || method == MethodName." << imethod.proxy_name
<< ") && args.Count == " << itos(imethod.arguments.size())
<< " && " << CS_METHOD_HAS_GODOT_CLASS_METHOD << "((godot_string_name)"
<< CS_STATIC_FIELD_METHOD_PROXY_NAME_PREFIX << imethod.name << ".NativeValue))\n"
<< INDENT2 "{\n";
if (imethod.return_type.cname != name_cache.type_void) {
output << INDENT3 "var callRet = ";
} else {
output << INDENT3;
}
output << imethod.proxy_name << "(";
for (int i = 0; i < imethod.arguments.size(); i++) {
const ArgumentInterface &iarg = imethod.arguments[i];
const TypeInterface *arg_type = _get_type_or_null(iarg.type);
ERR_FAIL_NULL_V(arg_type, ERR_BUG); // Argument type not found
if (i != 0) {
output << ", ";
}
if (arg_type->cname == name_cache.type_Array_generic || arg_type->cname == name_cache.type_Dictionary_generic) {
String arg_cs_type = arg_type->cs_type + _get_generic_type_parameters(*arg_type, iarg.type.generic_type_parameters);
output << "new " << arg_cs_type << "(" << sformat(arg_type->cs_variant_to_managed, "args[" + itos(i) + "]", arg_type->cs_type, arg_type->name) << ")";
} else {
output << sformat(arg_type->cs_variant_to_managed,
"args[" + itos(i) + "]", arg_type->cs_type, arg_type->name);
}
}
output << ");\n";
if (imethod.return_type.cname != name_cache.type_void) {
const TypeInterface *return_type = _get_type_or_null(imethod.return_type);
ERR_FAIL_NULL_V(return_type, ERR_BUG); // Return type not found
output << INDENT3 "ret = "
<< sformat(return_type->cs_managed_to_variant, "callRet", return_type->cs_type, return_type->name)
<< ";\n"
<< INDENT3 "return true;\n";
} else {
output << INDENT3 "ret = default;\n"
<< INDENT3 "return true;\n";
}
output << INDENT2 "}\n";
}
if (is_derived_type) {
output << INDENT2 "return base." CS_METHOD_INVOKE_GODOT_CLASS_METHOD "(method, args, out ret);\n";
} else {
output << INDENT2 "ret = default;\n"
<< INDENT2 "return false;\n";
}
output << INDENT1 "}\n";
output << "#pragma warning restore CS0618\n";
// Generate HasGodotClassMethod
output << MEMBER_BEGIN "/// <summary>\n"
<< INDENT1 "/// Check if the type contains a method with the given name.\n"
<< INDENT1 "/// This method is used by Godot to check if a method exists before invoking it.\n"
<< INDENT1 "/// Do not call or override this method.\n"
<< INDENT1 "/// </summary>\n"
<< INDENT1 "/// <param name=\"method\">Name of the method to check for.</param>\n";
output << MEMBER_BEGIN "protected internal " << (is_derived_type ? "override" : "virtual")
<< " bool " CS_METHOD_HAS_GODOT_CLASS_METHOD "(in godot_string_name method)\n"
<< INDENT1 "{\n";
for (const MethodInterface &imethod : itype.methods) {
if (!imethod.is_virtual) {
continue;
}
// We check for native names (snake_case). If we detect one, we call HasGodotClassMethod
// again, but this time with the respective proxy name (PascalCase). It's the job of
// user derived classes to override the method and check for those. Our C# source
// generators take care of generating those override methods.
output << INDENT2 "if (method == MethodName." << imethod.proxy_name
<< ")\n" INDENT2 "{\n"
<< INDENT3 "if (" CS_METHOD_HAS_GODOT_CLASS_METHOD "("
<< CS_STATIC_FIELD_METHOD_PROXY_NAME_PREFIX << imethod.name
<< ".NativeValue.DangerousSelfRef))\n" INDENT3 "{\n"
<< INDENT4 "return true;\n"
<< INDENT3 "}\n" INDENT2 "}\n";
}
if (is_derived_type) {
output << INDENT2 "return base." CS_METHOD_HAS_GODOT_CLASS_METHOD "(method);\n";
} else {
output << INDENT2 "return false;\n";
}
output << INDENT1 "}\n";
// Generate HasGodotClassSignal
output << MEMBER_BEGIN "/// <summary>\n"
<< INDENT1 "/// Check if the type contains a signal with the given name.\n"
<< INDENT1 "/// This method is used by Godot to check if a signal exists before raising it.\n"
<< INDENT1 "/// Do not call or override this method.\n"
<< INDENT1 "/// </summary>\n"
<< INDENT1 "/// <param name=\"signal\">Name of the signal to check for.</param>\n";
output << MEMBER_BEGIN "protected internal " << (is_derived_type ? "override" : "virtual")
<< " bool " CS_METHOD_HAS_GODOT_CLASS_SIGNAL "(in godot_string_name signal)\n"
<< INDENT1 "{\n";
for (const SignalInterface &isignal : itype.signals_) {
// We check for native names (snake_case). If we detect one, we call HasGodotClassSignal
// again, but this time with the respective proxy name (PascalCase). It's the job of
// user derived classes to override the method and check for those. Our C# source
// generators take care of generating those override methods.
output << INDENT2 "if (signal == SignalName." << isignal.proxy_name
<< ")\n" INDENT2 "{\n"
<< INDENT3 "if (" CS_METHOD_HAS_GODOT_CLASS_SIGNAL "("
<< CS_STATIC_FIELD_SIGNAL_PROXY_NAME_PREFIX << isignal.name
<< ".NativeValue.DangerousSelfRef))\n" INDENT3 "{\n"
<< INDENT4 "return true;\n"
<< INDENT3 "}\n" INDENT2 "}\n";
}
if (is_derived_type) {
output << INDENT2 "return base." CS_METHOD_HAS_GODOT_CLASS_SIGNAL "(signal);\n";
} else {
output << INDENT2 "return false;\n";
}
output << INDENT1 "}\n";
}
//Generate StringName for all class members
bool is_inherit = !itype.is_singleton && obj_types.has(itype.base_name);
//PropertyName
output << MEMBER_BEGIN "/// <summary>\n"
<< INDENT1 "/// Cached StringNames for the properties and fields contained in this class, for fast lookup.\n"
<< INDENT1 "/// </summary>\n";
if (is_inherit) {
output << INDENT1 "public new class PropertyName : " << obj_types[itype.base_name].proxy_name << ".PropertyName";
} else {
output << INDENT1 "public class PropertyName";
}
output << "\n"
<< INDENT1 "{\n";
for (const PropertyInterface &iprop : itype.properties) {
output << INDENT2 "/// <summary>\n"
<< INDENT2 "/// Cached name for the '" << iprop.cname << "' property.\n"
<< INDENT2 "/// </summary>\n"
<< INDENT2 "public static readonly StringName " << iprop.proxy_name << " = \"" << iprop.cname << "\";\n";
}
output << INDENT1 "}\n";
//MethodName
output << MEMBER_BEGIN "/// <summary>\n"
<< INDENT1 "/// Cached StringNames for the methods contained in this class, for fast lookup.\n"
<< INDENT1 "/// </summary>\n";
if (is_inherit) {
output << INDENT1 "public new class MethodName : " << obj_types[itype.base_name].proxy_name << ".MethodName";
} else {
output << INDENT1 "public class MethodName";
}
output << "\n"
<< INDENT1 "{\n";
HashMap<String, StringName> method_names;
for (const MethodInterface &imethod : itype.methods) {
if (method_names.has(imethod.proxy_name)) {
ERR_FAIL_COND_V_MSG(method_names[imethod.proxy_name] != imethod.cname, ERR_BUG, "Method name '" + imethod.proxy_name + "' already exists with a different value.");
continue;
}
method_names[imethod.proxy_name] = imethod.cname;
output << INDENT2 "/// <summary>\n"
<< INDENT2 "/// Cached name for the '" << imethod.cname << "' method.\n"
<< INDENT2 "/// </summary>\n"
<< INDENT2 "public static readonly StringName " << imethod.proxy_name << " = \"" << imethod.cname << "\";\n";
}
output << INDENT1 "}\n";
//SignalName
output << MEMBER_BEGIN "/// <summary>\n"
<< INDENT1 "/// Cached StringNames for the signals contained in this class, for fast lookup.\n"
<< INDENT1 "/// </summary>\n";
if (is_inherit) {
output << INDENT1 "public new class SignalName : " << obj_types[itype.base_name].proxy_name << ".SignalName";
} else {
output << INDENT1 "public class SignalName";
}
output << "\n"
<< INDENT1 "{\n";
for (const SignalInterface &isignal : itype.signals_) {
output << INDENT2 "/// <summary>\n"
<< INDENT2 "/// Cached name for the '" << isignal.cname << "' signal.\n"
<< INDENT2 "/// </summary>\n"
<< INDENT2 "public static readonly StringName " << isignal.proxy_name << " = \"" << isignal.cname << "\";\n";
}
output << INDENT1 "}\n";
output.append(CLOSE_BLOCK /* class */);
return _save_file(p_output_file, output);
}
Error BindingsGenerator::_generate_cs_property(const BindingsGenerator::TypeInterface &p_itype, const PropertyInterface &p_iprop, StringBuilder &p_output) {
const MethodInterface *setter = p_itype.find_method_by_name(p_iprop.setter);
// Search it in base types too
const TypeInterface *current_type = &p_itype;
while (!setter && current_type->base_name != StringName()) {
HashMap<StringName, TypeInterface>::Iterator base_match = obj_types.find(current_type->base_name);
ERR_FAIL_COND_V_MSG(!base_match, ERR_BUG, "Type not found '" + current_type->base_name + "'. Inherited by '" + current_type->name + "'.");
current_type = &base_match->value;
setter = current_type->find_method_by_name(p_iprop.setter);
}
const MethodInterface *getter = p_itype.find_method_by_name(p_iprop.getter);
// Search it in base types too
current_type = &p_itype;
while (!getter && current_type->base_name != StringName()) {
HashMap<StringName, TypeInterface>::Iterator base_match = obj_types.find(current_type->base_name);
ERR_FAIL_COND_V_MSG(!base_match, ERR_BUG, "Type not found '" + current_type->base_name + "'. Inherited by '" + current_type->name + "'.");
current_type = &base_match->value;
getter = current_type->find_method_by_name(p_iprop.getter);
}
ERR_FAIL_COND_V(!setter && !getter, ERR_BUG);
if (setter) {
int setter_argc = p_iprop.index != -1 ? 2 : 1;
ERR_FAIL_COND_V(setter->arguments.size() != setter_argc, ERR_BUG);
}
if (getter) {
int getter_argc = p_iprop.index != -1 ? 1 : 0;
ERR_FAIL_COND_V(getter->arguments.size() != getter_argc, ERR_BUG);
}
if (getter && setter) {
const ArgumentInterface &setter_first_arg = setter->arguments.back()->get();
if (getter->return_type.cname != setter_first_arg.type.cname) {
// Special case for Node::set_name
bool whitelisted = getter->return_type.cname == name_cache.type_StringName &&
setter_first_arg.type.cname == name_cache.type_String;
ERR_FAIL_COND_V_MSG(!whitelisted, ERR_BUG,
"Return type from getter doesn't match first argument of setter for property: '" +
p_itype.name + "." + String(p_iprop.cname) + "'.");
}
}
const TypeReference &proptype_name = getter ? getter->return_type : setter->arguments.back()->get().type;
const TypeInterface *prop_itype = _get_type_or_singleton_or_null(proptype_name);
ERR_FAIL_NULL_V(prop_itype, ERR_BUG); // Property type not found
ERR_FAIL_COND_V_MSG(prop_itype->is_singleton, ERR_BUG,
"Property type is a singleton: '" + p_itype.name + "." + String(p_iprop.cname) + "'.");
if (p_itype.api_type == ClassDB::API_CORE) {
ERR_FAIL_COND_V_MSG(prop_itype->api_type == ClassDB::API_EDITOR, ERR_BUG,
"Property '" + p_itype.name + "." + String(p_iprop.cname) + "' has type '" + prop_itype->name +
"' from the editor API. Core API cannot have dependencies on the editor API.");
}
if (p_iprop.prop_doc && p_iprop.prop_doc->description.size()) {
String xml_summary = bbcode_to_xml(fix_doc_description(p_iprop.prop_doc->description), &p_itype);
Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
if (summary_lines.size()) {
p_output.append(MEMBER_BEGIN "/// <summary>\n");
for (int i = 0; i < summary_lines.size(); i++) {
p_output.append(INDENT1 "/// ");
p_output.append(summary_lines[i]);
p_output.append("\n");
}
p_output.append(INDENT1 "/// </summary>");
}
}
if (p_iprop.is_deprecated) {
p_output.append(MEMBER_BEGIN "[Obsolete(\"");
p_output.append(bbcode_to_text(p_iprop.deprecation_message, &p_itype));
p_output.append("\")]");
}
if (p_iprop.is_hidden) {
p_output.append(MEMBER_BEGIN "[EditorBrowsable(EditorBrowsableState.Never)]");
}
p_output.append(MEMBER_BEGIN "public ");
if (prop_allowed_inherited_member_hiding.has(p_itype.proxy_name + "." + p_iprop.proxy_name)) {
p_output.append("new ");
}
if (p_itype.is_singleton) {
p_output.append("static ");
}
String prop_cs_type = prop_itype->cs_type + _get_generic_type_parameters(*prop_itype, proptype_name.generic_type_parameters);
p_output.append(prop_cs_type);
p_output.append(" ");
p_output.append(p_iprop.proxy_name);
p_output.append("\n" OPEN_BLOCK_L1);
if (getter) {
p_output.append(INDENT2 "get\n" OPEN_BLOCK_L2 INDENT3);
p_output.append("return ");
p_output.append(getter->proxy_name + "(");
if (p_iprop.index != -1) {
const ArgumentInterface &idx_arg = getter->arguments.front()->get();
if (idx_arg.type.cname != name_cache.type_int) {
// Assume the index parameter is an enum
const TypeInterface *idx_arg_type = _get_type_or_null(idx_arg.type);
CRASH_COND(idx_arg_type == nullptr);
p_output.append("(" + idx_arg_type->proxy_name + ")(" + itos(p_iprop.index) + ")");
} else {
p_output.append(itos(p_iprop.index));
}
}
p_output.append(");\n" CLOSE_BLOCK_L2);
}
if (setter) {
p_output.append(INDENT2 "set\n" OPEN_BLOCK_L2 INDENT3);
p_output.append(setter->proxy_name + "(");
if (p_iprop.index != -1) {
const ArgumentInterface &idx_arg = setter->arguments.front()->get();
if (idx_arg.type.cname != name_cache.type_int) {
// Assume the index parameter is an enum
const TypeInterface *idx_arg_type = _get_type_or_null(idx_arg.type);
CRASH_COND(idx_arg_type == nullptr);
p_output.append("(" + idx_arg_type->proxy_name + ")(" + itos(p_iprop.index) + "), ");
} else {
p_output.append(itos(p_iprop.index) + ", ");
}
}
p_output.append("value);\n" CLOSE_BLOCK_L2);
}
p_output.append(CLOSE_BLOCK_L1);
return OK;
}
Error BindingsGenerator::_generate_cs_method(const BindingsGenerator::TypeInterface &p_itype, const BindingsGenerator::MethodInterface &p_imethod, int &p_method_bind_count, StringBuilder &p_output) {
const TypeInterface *return_type = _get_type_or_singleton_or_null(p_imethod.return_type);
ERR_FAIL_NULL_V(return_type, ERR_BUG); // Return type not found
ERR_FAIL_COND_V_MSG(return_type->is_singleton, ERR_BUG,
"Method return type is a singleton: '" + p_itype.name + "." + p_imethod.name + "'.");
if (p_itype.api_type == ClassDB::API_CORE) {
ERR_FAIL_COND_V_MSG(return_type->api_type == ClassDB::API_EDITOR, ERR_BUG,
"Method '" + p_itype.name + "." + p_imethod.name + "' has return type '" + return_type->name +
"' from the editor API. Core API cannot have dependencies on the editor API.");
}
String method_bind_field = CS_STATIC_FIELD_METHOD_BIND_PREFIX + itos(p_method_bind_count);
String arguments_sig;
StringBuilder cs_in_statements;
bool cs_in_expr_is_unsafe = false;
String icall_params = method_bind_field;
if (!p_imethod.is_static) {
String self_reference = "this";
if (p_itype.is_singleton) {
self_reference = CS_PROPERTY_SINGLETON;
}
if (p_itype.cs_in.size()) {
cs_in_statements << sformat(p_itype.cs_in, p_itype.c_type, self_reference,
String(), String(), String(), INDENT2);
}
icall_params += ", " + sformat(p_itype.cs_in_expr, self_reference);
}
StringBuilder default_args_doc;
// Retrieve information from the arguments
const ArgumentInterface &first = p_imethod.arguments.front()->get();
for (const ArgumentInterface &iarg : p_imethod.arguments) {
const TypeInterface *arg_type = _get_type_or_singleton_or_null(iarg.type);
ERR_FAIL_NULL_V(arg_type, ERR_BUG); // Argument type not found
ERR_FAIL_COND_V_MSG(arg_type->is_singleton, ERR_BUG,
"Argument type is a singleton: '" + iarg.name + "' of method '" + p_itype.name + "." + p_imethod.name + "'.");
if (p_itype.api_type == ClassDB::API_CORE) {
ERR_FAIL_COND_V_MSG(arg_type->api_type == ClassDB::API_EDITOR, ERR_BUG,
"Argument '" + iarg.name + "' of method '" + p_itype.name + "." + p_imethod.name + "' has type '" +
arg_type->name + "' from the editor API. Core API cannot have dependencies on the editor API.");
}
if (iarg.default_argument.size()) {
CRASH_COND_MSG(!_arg_default_value_is_assignable_to_type(iarg.def_param_value, *arg_type),
"Invalid default value for parameter '" + iarg.name + "' of method '" + p_itype.name + "." + p_imethod.name + "'.");
}
String arg_cs_type = arg_type->cs_type + _get_generic_type_parameters(*arg_type, iarg.type.generic_type_parameters);
// Add the current arguments to the signature
// If the argument has a default value which is not a constant, we will make it Nullable
{
if (&iarg != &first) {
arguments_sig += ", ";
}
if (iarg.def_param_mode == ArgumentInterface::NULLABLE_VAL) {
arguments_sig += "Nullable<";
}
arguments_sig += arg_cs_type;
if (iarg.def_param_mode == ArgumentInterface::NULLABLE_VAL) {
arguments_sig += "> ";
} else {
arguments_sig += " ";
}
arguments_sig += iarg.name;
if (!p_imethod.is_compat && iarg.default_argument.size()) {
if (iarg.def_param_mode != ArgumentInterface::CONSTANT) {
arguments_sig += " = null";
} else {
arguments_sig += " = " + sformat(iarg.default_argument, arg_type->cs_type);
}
}
}
icall_params += ", ";
if (iarg.default_argument.size() && iarg.def_param_mode != ArgumentInterface::CONSTANT) {
// The default value of an argument must be constant. Otherwise we make it Nullable and do the following:
// Type arg_in = arg.HasValue ? arg.Value : <non-const default value>;
String arg_or_defval_local = iarg.name;
arg_or_defval_local += "OrDefVal";
cs_in_statements << INDENT2 << arg_cs_type << " " << arg_or_defval_local << " = " << iarg.name;
if (iarg.def_param_mode == ArgumentInterface::NULLABLE_VAL) {
cs_in_statements << ".HasValue ? ";
} else {
cs_in_statements << " != null ? ";
}
cs_in_statements << iarg.name;
if (iarg.def_param_mode == ArgumentInterface::NULLABLE_VAL) {
cs_in_statements << ".Value : ";
} else {
cs_in_statements << " : ";
}
String cs_type = arg_cs_type;
if (cs_type.ends_with("[]")) {
cs_type = cs_type.substr(0, cs_type.length() - 2);
}
String def_arg = sformat(iarg.default_argument, cs_type);
cs_in_statements << def_arg << ";\n";
if (arg_type->cs_in.size()) {
cs_in_statements << sformat(arg_type->cs_in, arg_type->c_type, arg_or_defval_local,
String(), String(), String(), INDENT2);
}
if (arg_type->cs_in_expr.is_empty()) {
icall_params += arg_or_defval_local;
} else {
icall_params += sformat(arg_type->cs_in_expr, arg_or_defval_local, arg_type->c_type);
}
// Apparently the name attribute must not include the @
String param_tag_name = iarg.name.begins_with("@") ? iarg.name.substr(1, iarg.name.length()) : iarg.name;
// Escape < and > in the attribute default value
String param_def_arg = def_arg.replacen("<", "&lt;").replacen(">", "&gt;");
default_args_doc.append(MEMBER_BEGIN "/// <param name=\"" + param_tag_name + "\">If the parameter is null, then the default value is <c>" + param_def_arg + "</c>.</param>");
} else {
if (arg_type->cs_in.size()) {
cs_in_statements << sformat(arg_type->cs_in, arg_type->c_type, iarg.name,
String(), String(), String(), INDENT2);
}
icall_params += arg_type->cs_in_expr.is_empty() ? iarg.name : sformat(arg_type->cs_in_expr, iarg.name, arg_type->c_type);
}
cs_in_expr_is_unsafe |= arg_type->cs_in_expr_is_unsafe;
}
// Collect caller name for MethodBind
if (p_imethod.is_vararg) {
icall_params += ", (godot_string_name)MethodName." + p_imethod.proxy_name + ".NativeValue";
}
// Generate method
{
if (!p_imethod.is_virtual && !p_imethod.requires_object_call) {
p_output << MEMBER_BEGIN "[DebuggerBrowsable(DebuggerBrowsableState.Never)]\n"
<< INDENT1 "private static readonly IntPtr " << method_bind_field << " = ";
if (p_itype.is_singleton) {
// Singletons are static classes. They don't derive GodotObject,
// so we need to specify the type to call the static method.
p_output << "GodotObject.";
}
p_output << ICALL_CLASSDB_GET_METHOD_WITH_COMPATIBILITY "(" BINDINGS_NATIVE_NAME_FIELD ", MethodName."
<< p_imethod.proxy_name << ", " << itos(p_imethod.hash) << "ul"
<< ");\n";
}
if (p_imethod.method_doc && p_imethod.method_doc->description.size()) {
String xml_summary = bbcode_to_xml(fix_doc_description(p_imethod.method_doc->description), &p_itype);
Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
if (summary_lines.size()) {
p_output.append(MEMBER_BEGIN "/// <summary>\n");
for (int i = 0; i < summary_lines.size(); i++) {
p_output.append(INDENT1 "/// ");
p_output.append(summary_lines[i]);
p_output.append("\n");
}
p_output.append(INDENT1 "/// </summary>");
}
}
if (default_args_doc.get_string_length()) {
p_output.append(default_args_doc.as_string());
}
if (p_imethod.is_deprecated) {
p_output.append(MEMBER_BEGIN "[Obsolete(\"");
p_output.append(bbcode_to_text(p_imethod.deprecation_message, &p_itype));
p_output.append("\")]");
}
if (p_imethod.is_hidden) {
p_output.append(MEMBER_BEGIN "[EditorBrowsable(EditorBrowsableState.Never)]");
}
p_output.append(MEMBER_BEGIN);
p_output.append(p_imethod.is_internal ? "internal " : "public ");
if (p_itype.is_singleton || p_imethod.is_static) {
p_output.append("static ");
} else if (p_imethod.is_virtual) {
p_output.append("virtual ");
}
if (cs_in_expr_is_unsafe) {
p_output.append("unsafe ");
}
String return_cs_type = return_type->cs_type + _get_generic_type_parameters(*return_type, p_imethod.return_type.generic_type_parameters);
p_output.append(return_cs_type + " ");
p_output.append(p_imethod.proxy_name + "(");
p_output.append(arguments_sig + ")\n" OPEN_BLOCK_L1);
if (p_imethod.is_virtual) {
// Godot virtual method must be overridden, therefore we return a default value by default.
if (return_type->cname == name_cache.type_void) {
p_output.append(CLOSE_BLOCK_L1);
} else {
p_output.append(INDENT2 "return default;\n" CLOSE_BLOCK_L1);
}
return OK; // Won't increment method bind count
}
if (p_imethod.requires_object_call) {
// Fallback to Godot's object.Call(string, params)
p_output.append(INDENT2 CS_METHOD_CALL "(\"");
p_output.append(p_imethod.name);
p_output.append("\"");
for (const ArgumentInterface &iarg : p_imethod.arguments) {
p_output.append(", ");
p_output.append(iarg.name);
}
p_output.append(");\n" CLOSE_BLOCK_L1);
return OK; // Won't increment method bind count
}
HashMap<const MethodInterface *, const InternalCall *>::ConstIterator match = method_icalls_map.find(&p_imethod);
ERR_FAIL_NULL_V(match, ERR_BUG);
const InternalCall *im_icall = match->value;
String im_call = im_icall->editor_only ? BINDINGS_CLASS_NATIVECALLS_EDITOR : BINDINGS_CLASS_NATIVECALLS;
im_call += ".";
im_call += im_icall->name;
if (p_imethod.arguments.size() && cs_in_statements.get_string_length() > 0) {
p_output.append(cs_in_statements.as_string());
}
if (return_type->cname == name_cache.type_void) {
p_output << INDENT2 << im_call << "(" << icall_params << ");\n";
} else if (return_type->cs_out.is_empty()) {
p_output << INDENT2 "return " << im_call << "(" << icall_params << ");\n";
} else {
p_output.append(sformat(return_type->cs_out, im_call, icall_params,
return_cs_type, return_type->c_type_out, String(), INDENT2));
p_output.append("\n");
}
p_output.append(CLOSE_BLOCK_L1);
}
p_method_bind_count++;
return OK;
}
Error BindingsGenerator::_generate_cs_signal(const BindingsGenerator::TypeInterface &p_itype, const BindingsGenerator::SignalInterface &p_isignal, StringBuilder &p_output) {
String arguments_sig;
String delegate_type_params;
if (!p_isignal.arguments.is_empty()) {
delegate_type_params += "<";
}
// Retrieve information from the arguments
const ArgumentInterface &first = p_isignal.arguments.front()->get();
for (const ArgumentInterface &iarg : p_isignal.arguments) {
const TypeInterface *arg_type = _get_type_or_singleton_or_null(iarg.type);
ERR_FAIL_NULL_V(arg_type, ERR_BUG); // Argument type not found
ERR_FAIL_COND_V_MSG(arg_type->is_singleton, ERR_BUG,
"Argument type is a singleton: '" + iarg.name + "' of signal '" + p_itype.name + "." + p_isignal.name + "'.");
if (p_itype.api_type == ClassDB::API_CORE) {
ERR_FAIL_COND_V_MSG(arg_type->api_type == ClassDB::API_EDITOR, ERR_BUG,
"Argument '" + iarg.name + "' of signal '" + p_itype.name + "." + p_isignal.name + "' has type '" +
arg_type->name + "' from the editor API. Core API cannot have dependencies on the editor API.");
}
// Add the current arguments to the signature
if (&iarg != &first) {
arguments_sig += ", ";
delegate_type_params += ", ";
}
arguments_sig += arg_type->cs_type;
arguments_sig += " ";
arguments_sig += iarg.name;
delegate_type_params += arg_type->cs_type;
}
if (!p_isignal.arguments.is_empty()) {
delegate_type_params += ">";
}
// Generate signal
{
bool is_parameterless = p_isignal.arguments.size() == 0;
// Delegate name is [SignalName]EventHandler
String delegate_name = is_parameterless ? "Action" : p_isignal.proxy_name + "EventHandler";
if (!is_parameterless) {
p_output.append(MEMBER_BEGIN "/// <summary>\n");
p_output.append(INDENT1 "/// ");
p_output.append("Represents the method that handles the ");
p_output.append("<see cref=\"" BINDINGS_NAMESPACE "." + p_itype.proxy_name + "." + p_isignal.proxy_name + "\"/>");
p_output.append(" event of a ");
p_output.append("<see cref=\"" BINDINGS_NAMESPACE "." + p_itype.proxy_name + "\"/>");
p_output.append(" class.\n");
p_output.append(INDENT1 "/// </summary>");
if (p_isignal.is_deprecated) {
p_output.append(MEMBER_BEGIN "[Obsolete(\"");
p_output.append(bbcode_to_text(p_isignal.deprecation_message, &p_itype));
p_output.append("\")]");
}
// Generate delegate
p_output.append(MEMBER_BEGIN "public delegate void ");
p_output.append(delegate_name);
p_output.append("(");
p_output.append(arguments_sig);
p_output.append(");\n");
// Generate Callable trampoline for the delegate
p_output << MEMBER_BEGIN "private static void " << p_isignal.proxy_name << "Trampoline"
<< "(object delegateObj, NativeVariantPtrArgs args, out godot_variant ret)\n"
<< INDENT1 "{\n"
<< INDENT2 "Callable.ThrowIfArgCountMismatch(args, " << itos(p_isignal.arguments.size()) << ");\n"
<< INDENT2 "((" << delegate_name << ")delegateObj)(";
int idx = 0;
for (const ArgumentInterface &iarg : p_isignal.arguments) {
const TypeInterface *arg_type = _get_type_or_null(iarg.type);
ERR_FAIL_NULL_V(arg_type, ERR_BUG); // Argument type not found
if (idx != 0) {
p_output << ", ";
}
p_output << sformat(arg_type->cs_variant_to_managed,
"args[" + itos(idx) + "]", arg_type->cs_type, arg_type->name);
idx++;
}
p_output << ");\n"
<< INDENT2 "ret = default;\n"
<< INDENT1 "}\n";
}
if (p_isignal.method_doc && p_isignal.method_doc->description.size()) {
String xml_summary = bbcode_to_xml(fix_doc_description(p_isignal.method_doc->description), &p_itype, true);
Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
if (summary_lines.size()) {
p_output.append(MEMBER_BEGIN "/// <summary>\n");
for (int i = 0; i < summary_lines.size(); i++) {
p_output.append(INDENT1 "/// ");
p_output.append(summary_lines[i]);
p_output.append("\n");
}
p_output.append(INDENT1 "/// </summary>");
}
}
if (p_isignal.is_deprecated) {
p_output.append(MEMBER_BEGIN "[Obsolete(\"");
p_output.append(bbcode_to_text(p_isignal.deprecation_message, &p_itype));
p_output.append("\")]");
}
// TODO:
// Could we assume the StringName instance of signal name will never be freed (it's stored in ClassDB) before the managed world is unloaded?
// If so, we could store the pointer we get from `data_unique_pointer()` instead of allocating StringName here.
// Generate event
p_output.append(MEMBER_BEGIN "public ");
if (p_itype.is_singleton) {
p_output.append("static ");
}
if (!is_parameterless) {
// `unsafe` is needed for taking the trampoline's function pointer
p_output << "unsafe ";
}
p_output.append("event ");
p_output.append(delegate_name);
p_output.append(" ");
p_output.append(p_isignal.proxy_name);
p_output.append("\n" OPEN_BLOCK_L1 INDENT2);
if (p_itype.is_singleton) {
p_output.append("add => " CS_PROPERTY_SINGLETON ".Connect(SignalName.");
} else {
p_output.append("add => Connect(SignalName.");
}
if (is_parameterless) {
// Delegate type is Action. No need for custom trampoline.
p_output << p_isignal.proxy_name << ", Callable.From(value));\n";
} else {
p_output << p_isignal.proxy_name
<< ", Callable.CreateWithUnsafeTrampoline(value, &" << p_isignal.proxy_name << "Trampoline));\n";
}
if (p_itype.is_singleton) {
p_output.append(INDENT2 "remove => " CS_PROPERTY_SINGLETON ".Disconnect(SignalName.");
} else {
p_output.append(INDENT2 "remove => Disconnect(SignalName.");
}
if (is_parameterless) {
// Delegate type is Action. No need for custom trampoline.
p_output << p_isignal.proxy_name << ", Callable.From(value));\n";
} else {
p_output << p_isignal.proxy_name
<< ", Callable.CreateWithUnsafeTrampoline(value, &" << p_isignal.proxy_name << "Trampoline));\n";
}
p_output.append(CLOSE_BLOCK_L1);
}
return OK;
}
Error BindingsGenerator::_generate_cs_native_calls(const InternalCall &p_icall, StringBuilder &r_output) {
bool ret_void = p_icall.return_type.cname == name_cache.type_void;
const TypeInterface *return_type = _get_type_or_null(p_icall.return_type);
ERR_FAIL_NULL_V(return_type, ERR_BUG); // Return type not found
StringBuilder c_func_sig;
StringBuilder c_in_statements;
StringBuilder c_args_var_content;
c_func_sig << "IntPtr " CS_PARAM_METHODBIND;
if (!p_icall.is_static) {
c_func_sig += ", IntPtr " CS_PARAM_INSTANCE;
}
// Get arguments information
int i = 0;
for (const TypeReference &arg_type_ref : p_icall.argument_types) {
const TypeInterface *arg_type = _get_type_or_null(arg_type_ref);
ERR_FAIL_NULL_V(arg_type, ERR_BUG); // Return type not found
String c_param_name = "arg" + itos(i + 1);
if (p_icall.is_vararg) {
if (i < p_icall.get_arguments_count() - 1) {
String c_in_vararg = arg_type->c_in_vararg;
if (arg_type->is_object_type) {
c_in_vararg = "%5using godot_variant %1_in = VariantUtils.CreateFromGodotObjectPtr(%1);\n";
}
ERR_FAIL_COND_V_MSG(c_in_vararg.is_empty(), ERR_BUG,
"VarArg support not implemented for parameter type: " + arg_type->name);
c_in_statements
<< sformat(c_in_vararg, return_type->c_type, c_param_name,
String(), String(), String(), INDENT3)
<< INDENT3 C_LOCAL_PTRCALL_ARGS "[" << itos(i)
<< "] = new IntPtr(&" << c_param_name << "_in);\n";
}
} else {
if (i > 0) {
c_args_var_content << ", ";
}
if (arg_type->c_in.size()) {
c_in_statements << sformat(arg_type->c_in, arg_type->c_type, c_param_name,
String(), String(), String(), INDENT2);
}
c_args_var_content << sformat(arg_type->c_arg_in, c_param_name);
}
c_func_sig << ", " << arg_type->c_type_in << " " << c_param_name;
i++;
}
// Collect caller name for MethodBind
if (p_icall.is_vararg) {
c_func_sig << ", godot_string_name caller";
}
String icall_method = p_icall.name;
// Generate icall function
r_output << MEMBER_BEGIN "internal static unsafe " << (ret_void ? "void" : return_type->c_type_out) << " "
<< icall_method << "(" << c_func_sig.as_string() << ")\n" OPEN_BLOCK_L1;
if (!p_icall.is_static) {
r_output << INDENT2 "ExceptionUtils.ThrowIfNullPtr(" CS_PARAM_INSTANCE ");\n";
}
if (!ret_void && (!p_icall.is_vararg || return_type->cname != name_cache.type_Variant)) {
String ptrcall_return_type;
String initialization;
if (return_type->is_object_type) {
ptrcall_return_type = return_type->is_ref_counted ? "godot_ref" : return_type->c_type;
initialization = " = default";
} else {
ptrcall_return_type = return_type->c_type;
}
r_output << INDENT2;
if (return_type->is_ref_counted || return_type->c_type_is_disposable_struct) {
r_output << "using ";
if (initialization.is_empty()) {
initialization = " = default";
}
} else if (return_type->c_ret_needs_default_initialization) {
initialization = " = default";
}
r_output << ptrcall_return_type << " " C_LOCAL_RET << initialization << ";\n";
}
String argc_str = itos(p_icall.get_arguments_count());
auto generate_call_and_return_stmts = [&](const char *base_indent) {
if (p_icall.is_vararg) {
// MethodBind Call
r_output << base_indent;
// VarArg methods always return Variant, but there are some cases in which MethodInfo provides
// a specific return type. We trust this information is valid. We need a temporary local to keep
// the Variant alive until the method returns. Otherwise, if the returned Variant holds a RefPtr,
// it could be deleted too early. This is the case with GDScript.new() which returns OBJECT.
// Alternatively, we could just return Variant, but that would result in a worse API.
if (!ret_void) {
if (return_type->cname != name_cache.type_Variant) {
// Usually the return value takes ownership, but in this case the variant is only used
// for conversion to another return type. As such, the local variable takes ownership.
r_output << "using godot_variant " << C_LOCAL_VARARG_RET " = ";
} else {
// Variant's [c_out] takes ownership of the variant value
r_output << "godot_variant " << C_LOCAL_RET " = ";
}
}
r_output << C_CLASS_NATIVE_FUNCS ".godotsharp_method_bind_call("
<< CS_PARAM_METHODBIND ", " << (p_icall.is_static ? "IntPtr.Zero" : CS_PARAM_INSTANCE)
<< ", " << (p_icall.get_arguments_count() ? "(godot_variant**)" C_LOCAL_PTRCALL_ARGS : "null")
<< ", total_length, out godot_variant_call_error vcall_error);\n";
r_output << base_indent << "ExceptionUtils.DebugCheckCallError(caller"
<< ", " << (p_icall.is_static ? "IntPtr.Zero" : CS_PARAM_INSTANCE)
<< ", " << (p_icall.get_arguments_count() ? "(godot_variant**)" C_LOCAL_PTRCALL_ARGS : "null")
<< ", total_length, vcall_error);\n";
if (!ret_void) {
if (return_type->cname != name_cache.type_Variant) {
if (return_type->cname == name_cache.enum_Error) {
r_output << base_indent << C_LOCAL_RET " = VariantUtils.ConvertToInt64(" C_LOCAL_VARARG_RET ");\n";
} else {
// TODO: Use something similar to c_in_vararg (see usage above, with error if not implemented)
CRASH_NOW_MSG("Custom VarArg return type not implemented: " + return_type->name);
r_output << base_indent << C_LOCAL_RET " = " C_LOCAL_VARARG_RET ";\n";
}
}
}
} else {
// MethodBind PtrCall
r_output << base_indent << C_CLASS_NATIVE_FUNCS ".godotsharp_method_bind_ptrcall("
<< CS_PARAM_METHODBIND ", " << (p_icall.is_static ? "IntPtr.Zero" : CS_PARAM_INSTANCE)
<< ", " << (p_icall.get_arguments_count() ? C_LOCAL_PTRCALL_ARGS : "null")
<< ", " << (!ret_void ? "&" C_LOCAL_RET ");\n" : "null);\n");
}
// Return statement
if (!ret_void) {
if (return_type->c_out.is_empty()) {
r_output << base_indent << "return " C_LOCAL_RET ";\n";
} else {
r_output << sformat(return_type->c_out, return_type->c_type_out, C_LOCAL_RET,
return_type->name, String(), String(), base_indent);
}
}
};
if (p_icall.get_arguments_count()) {
if (p_icall.is_vararg) {
String vararg_arg = "arg" + argc_str;
String real_argc_str = itos(p_icall.get_arguments_count() - 1); // Arguments count without vararg
p_icall.get_arguments_count();
r_output << INDENT2 "int vararg_length = " << vararg_arg << ".Length;\n"
<< INDENT2 "int total_length = " << real_argc_str << " + vararg_length;\n";
r_output << INDENT2 "Span<godot_variant.movable> varargs_span = vararg_length <= VarArgsSpanThreshold ?\n"
<< INDENT3 "stackalloc godot_variant.movable[VarArgsSpanThreshold] :\n"
<< INDENT3 "new godot_variant.movable[vararg_length];\n";
r_output << INDENT2 "Span<IntPtr> " C_LOCAL_PTRCALL_ARGS "_span = total_length <= VarArgsSpanThreshold ?\n"
<< INDENT3 "stackalloc IntPtr[VarArgsSpanThreshold] :\n"
<< INDENT3 "new IntPtr[total_length];\n";
r_output << INDENT2 "fixed (godot_variant.movable* varargs = &MemoryMarshal.GetReference(varargs_span))\n"
<< INDENT2 "fixed (IntPtr* " C_LOCAL_PTRCALL_ARGS " = "
"&MemoryMarshal.GetReference(" C_LOCAL_PTRCALL_ARGS "_span))\n"
<< OPEN_BLOCK_L2;
r_output << c_in_statements.as_string();
r_output << INDENT3 "for (int i = 0; i < vararg_length; i++)\n" OPEN_BLOCK_L3
<< INDENT4 "varargs[i] = " << vararg_arg << "[i].NativeVar;\n"
<< INDENT4 C_LOCAL_PTRCALL_ARGS "[" << real_argc_str << " + i] = new IntPtr(&varargs[i]);\n"
<< CLOSE_BLOCK_L3;
generate_call_and_return_stmts(INDENT3);
r_output << CLOSE_BLOCK_L2;
} else {
r_output << c_in_statements.as_string();
r_output << INDENT2 "void** " C_LOCAL_PTRCALL_ARGS " = stackalloc void*["
<< argc_str << "] { " << c_args_var_content.as_string() << " };\n";
generate_call_and_return_stmts(INDENT2);
}
} else {
generate_call_and_return_stmts(INDENT2);
}
r_output << CLOSE_BLOCK_L1;
return OK;
}
Error BindingsGenerator::_save_file(const String &p_path, const StringBuilder &p_content) {
Ref<FileAccess> file = FileAccess::open(p_path, FileAccess::WRITE);
ERR_FAIL_COND_V_MSG(file.is_null(), ERR_FILE_CANT_WRITE, "Cannot open file: '" + p_path + "'.");
file->store_string(p_content.as_string());
return OK;
}
const BindingsGenerator::TypeInterface *BindingsGenerator::_get_type_or_null(const TypeReference &p_typeref) {
HashMap<StringName, TypeInterface>::ConstIterator builtin_type_match = builtin_types.find(p_typeref.cname);
if (builtin_type_match) {
return &builtin_type_match->value;
}
HashMap<StringName, TypeInterface>::ConstIterator obj_type_match = obj_types.find(p_typeref.cname);
if (obj_type_match) {
return &obj_type_match->value;
}
if (p_typeref.is_enum) {
HashMap<StringName, TypeInterface>::ConstIterator enum_match = enum_types.find(p_typeref.cname);
if (enum_match) {
return &enum_match->value;
}
// Enum not found. Most likely because none of its constants were bound, so it's empty. That's fine. Use int instead.
HashMap<StringName, TypeInterface>::ConstIterator int_match = builtin_types.find(name_cache.type_int);
ERR_FAIL_NULL_V(int_match, nullptr);
return &int_match->value;
}
return nullptr;
}
const BindingsGenerator::TypeInterface *BindingsGenerator::_get_type_or_singleton_or_null(const TypeReference &p_typeref) {
const TypeInterface *itype = _get_type_or_null(p_typeref);
if (itype == nullptr) {
return nullptr;
}
if (itype->is_singleton) {
StringName instance_type_name = itype->name + CS_SINGLETON_INSTANCE_SUFFIX;
itype = &obj_types.find(instance_type_name)->value;
}
return itype;
}
const String BindingsGenerator::_get_generic_type_parameters(const TypeInterface &p_itype, const List<TypeReference> &p_generic_type_parameters) {
if (p_generic_type_parameters.is_empty()) {
return "";
}
ERR_FAIL_COND_V_MSG(p_itype.type_parameter_count != p_generic_type_parameters.size(), "",
"Generic type parameter count mismatch for type '" + p_itype.name + "'." +
" Found " + itos(p_generic_type_parameters.size()) + ", but requires " +
itos(p_itype.type_parameter_count) + ".");
int i = 0;
String params = "<";
for (const TypeReference &param_type : p_generic_type_parameters) {
const TypeInterface *param_itype = _get_type_or_singleton_or_null(param_type);
ERR_FAIL_NULL_V(param_itype, ""); // Parameter type not found
ERR_FAIL_COND_V_MSG(param_itype->is_singleton, "",
"Generic type parameter is a singleton: '" + param_itype->name + "'.");
if (p_itype.api_type == ClassDB::API_CORE) {
ERR_FAIL_COND_V_MSG(param_itype->api_type == ClassDB::API_EDITOR, "",
"Generic type parameter '" + param_itype->name + "' has type from the editor API." +
" Core API cannot have dependencies on the editor API.");
}
params += param_itype->cs_type;
if (i < p_generic_type_parameters.size() - 1) {
params += ", ";
}
i++;
}
params += ">";
return params;
}
StringName BindingsGenerator::_get_type_name_from_meta(Variant::Type p_type, GodotTypeInfo::Metadata p_meta) {
if (p_type == Variant::INT) {
return _get_int_type_name_from_meta(p_meta);
} else if (p_type == Variant::FLOAT) {
return _get_float_type_name_from_meta(p_meta);
} else {
return Variant::get_type_name(p_type);
}
}
StringName BindingsGenerator::_get_int_type_name_from_meta(GodotTypeInfo::Metadata p_meta) {
switch (p_meta) {
case GodotTypeInfo::METADATA_INT_IS_INT8:
return "sbyte";
break;
case GodotTypeInfo::METADATA_INT_IS_INT16:
return "short";
break;
case GodotTypeInfo::METADATA_INT_IS_INT32:
return "int";
break;
case GodotTypeInfo::METADATA_INT_IS_INT64:
return "long";
break;
case GodotTypeInfo::METADATA_INT_IS_UINT8:
return "byte";
break;
case GodotTypeInfo::METADATA_INT_IS_UINT16:
return "ushort";
break;
case GodotTypeInfo::METADATA_INT_IS_UINT32:
return "uint";
break;
case GodotTypeInfo::METADATA_INT_IS_UINT64:
return "ulong";
break;
default:
// Assume INT64
return "long";
}
}
StringName BindingsGenerator::_get_float_type_name_from_meta(GodotTypeInfo::Metadata p_meta) {
switch (p_meta) {
case GodotTypeInfo::METADATA_REAL_IS_FLOAT:
return "float";
break;
case GodotTypeInfo::METADATA_REAL_IS_DOUBLE:
return "double";
break;
default:
// Assume FLOAT64
return "double";
}
}
bool BindingsGenerator::_arg_default_value_is_assignable_to_type(const Variant &p_val, const TypeInterface &p_arg_type) {
if (p_arg_type.name == name_cache.type_Variant) {
// Variant can take anything
return true;
}
switch (p_val.get_type()) {
case Variant::NIL:
return p_arg_type.is_object_type ||
name_cache.is_nullable_type(p_arg_type.name);
case Variant::BOOL:
return p_arg_type.name == name_cache.type_bool;
case Variant::INT:
return p_arg_type.name == name_cache.type_sbyte ||
p_arg_type.name == name_cache.type_short ||
p_arg_type.name == name_cache.type_int ||
p_arg_type.name == name_cache.type_byte ||
p_arg_type.name == name_cache.type_ushort ||
p_arg_type.name == name_cache.type_uint ||
p_arg_type.name == name_cache.type_long ||
p_arg_type.name == name_cache.type_ulong ||
p_arg_type.name == name_cache.type_float ||
p_arg_type.name == name_cache.type_double ||
p_arg_type.is_enum;
case Variant::FLOAT:
return p_arg_type.name == name_cache.type_float ||
p_arg_type.name == name_cache.type_double;
case Variant::STRING:
case Variant::STRING_NAME:
return p_arg_type.name == name_cache.type_String ||
p_arg_type.name == name_cache.type_StringName ||
p_arg_type.name == name_cache.type_NodePath;
case Variant::NODE_PATH:
return p_arg_type.name == name_cache.type_NodePath;
case Variant::TRANSFORM2D:
case Variant::TRANSFORM3D:
case Variant::BASIS:
case Variant::QUATERNION:
case Variant::PLANE:
case Variant::AABB:
case Variant::COLOR:
case Variant::VECTOR2:
case Variant::RECT2:
case Variant::VECTOR3:
case Variant::RID:
case Variant::PACKED_BYTE_ARRAY:
case Variant::PACKED_INT32_ARRAY:
case Variant::PACKED_INT64_ARRAY:
case Variant::PACKED_FLOAT32_ARRAY:
case Variant::PACKED_FLOAT64_ARRAY:
case Variant::PACKED_STRING_ARRAY:
case Variant::PACKED_VECTOR2_ARRAY:
case Variant::PACKED_VECTOR3_ARRAY:
case Variant::PACKED_VECTOR4_ARRAY:
case Variant::PACKED_COLOR_ARRAY:
case Variant::CALLABLE:
case Variant::SIGNAL:
return p_arg_type.name == Variant::get_type_name(p_val.get_type());
case Variant::ARRAY:
return p_arg_type.name == Variant::get_type_name(p_val.get_type()) || p_arg_type.cname == name_cache.type_Array_generic;
case Variant::DICTIONARY:
return p_arg_type.name == Variant::get_type_name(p_val.get_type()) || p_arg_type.cname == name_cache.type_Dictionary_generic;
case Variant::OBJECT:
return p_arg_type.is_object_type;
case Variant::VECTOR2I:
return p_arg_type.name == name_cache.type_Vector2 ||
p_arg_type.name == Variant::get_type_name(p_val.get_type());
case Variant::RECT2I:
return p_arg_type.name == name_cache.type_Rect2 ||
p_arg_type.name == Variant::get_type_name(p_val.get_type());
case Variant::VECTOR3I:
return p_arg_type.name == name_cache.type_Vector3 ||
p_arg_type.name == Variant::get_type_name(p_val.get_type());
default:
CRASH_NOW_MSG("Unexpected Variant type: " + itos(p_val.get_type()));
break;
}
return false;
}
bool method_has_ptr_parameter(MethodInfo p_method_info) {
if (p_method_info.return_val.type == Variant::INT && p_method_info.return_val.hint == PROPERTY_HINT_INT_IS_POINTER) {
return true;
}
for (PropertyInfo arg : p_method_info.arguments) {
if (arg.type == Variant::INT && arg.hint == PROPERTY_HINT_INT_IS_POINTER) {
return true;
}
}
return false;
}
struct SortMethodWithHashes {
_FORCE_INLINE_ bool operator()(const Pair<MethodInfo, uint32_t> &p_a, const Pair<MethodInfo, uint32_t> &p_b) const {
return p_a.first < p_b.first;
}
};
bool BindingsGenerator::_populate_object_type_interfaces() {
obj_types.clear();
List<StringName> class_list;
ClassDB::get_class_list(&class_list);
class_list.sort_custom<StringName::AlphCompare>();
while (class_list.size()) {
StringName type_cname = class_list.front()->get();
ClassDB::APIType api_type = ClassDB::get_api_type(type_cname);
if (api_type == ClassDB::API_NONE) {
class_list.pop_front();
continue;
}
if (ignored_types.has(type_cname)) {
_log("Ignoring type '%s' because it's in the list of ignored types\n", String(type_cname).utf8().get_data());
class_list.pop_front();
continue;
}
if (!ClassDB::is_class_exposed(type_cname)) {
_log("Ignoring type '%s' because it's not exposed\n", String(type_cname).utf8().get_data());
class_list.pop_front();
continue;
}
if (!ClassDB::is_class_enabled(type_cname)) {
_log("Ignoring type '%s' because it's not enabled\n", String(type_cname).utf8().get_data());
class_list.pop_front();
continue;
}
ClassDB::ClassInfo *class_info = ClassDB::classes.getptr(type_cname);
TypeInterface itype = TypeInterface::create_object_type(type_cname, pascal_to_pascal_case(type_cname), api_type);
itype.base_name = ClassDB::get_parent_class(type_cname);
itype.is_singleton = Engine::get_singleton()->has_singleton(type_cname);
itype.is_instantiable = class_info->creation_func && !itype.is_singleton;
itype.is_ref_counted = ClassDB::is_parent_class(type_cname, name_cache.type_RefCounted);
itype.memory_own = itype.is_ref_counted;
if (itype.class_doc) {
itype.is_deprecated = itype.class_doc->is_deprecated;
itype.deprecation_message = itype.class_doc->deprecated_message;
if (itype.is_deprecated && itype.deprecation_message.is_empty()) {
WARN_PRINT("An empty deprecation message is discouraged. Type: '" + itype.proxy_name + "'.");
itype.deprecation_message = "This class is deprecated.";
}
}
if (itype.is_singleton && compat_singletons.has(itype.cname)) {
itype.is_singleton = false;
itype.is_compat_singleton = true;
}
itype.c_out = "%5return ";
itype.c_out += C_METHOD_UNMANAGED_GET_MANAGED;
itype.c_out += itype.is_ref_counted ? "(%1.Reference);\n" : "(%1);\n";
itype.cs_type = itype.proxy_name;
itype.cs_in_expr = "GodotObject." CS_STATIC_METHOD_GETINSTANCE "(%0)";
itype.cs_out = "%5return (%2)%0(%1);";
itype.c_arg_in = "&%s";
itype.c_type = "IntPtr";
itype.c_type_in = itype.c_type;
itype.c_type_out = "GodotObject";
// Populate properties
List<PropertyInfo> property_list;
ClassDB::get_property_list(type_cname, &property_list, true);
HashMap<StringName, StringName> accessor_methods;
for (const PropertyInfo &property : property_list) {
if (property.usage & PROPERTY_USAGE_GROUP || property.usage & PROPERTY_USAGE_SUBGROUP || property.usage & PROPERTY_USAGE_CATEGORY || (property.type == Variant::NIL && property.usage & PROPERTY_USAGE_ARRAY)) {
continue;
}
if (property.name.find("/") >= 0) {
// Ignore properties with '/' (slash) in the name. These are only meant for use in the inspector.
continue;
}
PropertyInterface iprop;
iprop.cname = property.name;
iprop.setter = ClassDB::get_property_setter(type_cname, iprop.cname);
iprop.getter = ClassDB::get_property_getter(type_cname, iprop.cname);
// If the property is internal hide it; otherwise, hide the getter and setter.
if (property.usage & PROPERTY_USAGE_INTERNAL) {
iprop.is_hidden = true;
} else {
if (iprop.setter != StringName()) {
accessor_methods[iprop.setter] = iprop.cname;
}
if (iprop.getter != StringName()) {
accessor_methods[iprop.getter] = iprop.cname;
}
}
bool valid = false;
iprop.index = ClassDB::get_property_index(type_cname, iprop.cname, &valid);
ERR_FAIL_COND_V_MSG(!valid, false, "Invalid property: '" + itype.name + "." + String(iprop.cname) + "'.");
iprop.proxy_name = escape_csharp_keyword(snake_to_pascal_case(iprop.cname));
// Prevent the property and its enclosing type from sharing the same name
if (iprop.proxy_name == itype.proxy_name) {
_log("Name of property '%s' is ambiguous with the name of its enclosing class '%s'. Renaming property to '%s_'\n",
iprop.proxy_name.utf8().get_data(), itype.proxy_name.utf8().get_data(), iprop.proxy_name.utf8().get_data());
iprop.proxy_name += "_";
}
iprop.prop_doc = nullptr;
for (int i = 0; i < itype.class_doc->properties.size(); i++) {
const DocData::PropertyDoc &prop_doc = itype.class_doc->properties[i];
if (prop_doc.name == iprop.cname) {
iprop.prop_doc = &prop_doc;
break;
}
}
if (iprop.prop_doc) {
iprop.is_deprecated = iprop.prop_doc->is_deprecated;
iprop.deprecation_message = iprop.prop_doc->deprecated_message;
if (iprop.is_deprecated && iprop.deprecation_message.is_empty()) {
WARN_PRINT("An empty deprecation message is discouraged. Property: '" + itype.proxy_name + "." + iprop.proxy_name + "'.");
iprop.deprecation_message = "This property is deprecated.";
}
}
itype.properties.push_back(iprop);
}
// Populate methods
List<MethodInfo> virtual_method_list;
ClassDB::get_virtual_methods(type_cname, &virtual_method_list, true);
List<Pair<MethodInfo, uint32_t>> method_list_with_hashes;
ClassDB::get_method_list_with_compatibility(type_cname, &method_list_with_hashes, true);
method_list_with_hashes.sort_custom_inplace<SortMethodWithHashes>();
List<MethodInterface> compat_methods;
for (const Pair<MethodInfo, uint32_t> &E : method_list_with_hashes) {
const MethodInfo &method_info = E.first;
const uint32_t hash = E.second;
int argc = method_info.arguments.size();
if (method_info.name.is_empty()) {
continue;
}
String cname = method_info.name;
if (blacklisted_methods.find(itype.cname) && blacklisted_methods[itype.cname].find(cname)) {
continue;
}
if (method_has_ptr_parameter(method_info)) {
// Pointers are not supported.
itype.ignored_members.insert(method_info.name);
continue;
}
MethodInterface imethod;
imethod.name = method_info.name;
imethod.cname = cname;
imethod.hash = hash;
if (method_info.flags & METHOD_FLAG_STATIC) {
imethod.is_static = true;
}
if (method_info.flags & METHOD_FLAG_VIRTUAL) {
imethod.is_virtual = true;
itype.has_virtual_methods = true;
}
PropertyInfo return_info = method_info.return_val;
MethodBind *m = nullptr;
if (!imethod.is_virtual) {
bool method_exists = false;
m = ClassDB::get_method_with_compatibility(type_cname, method_info.name, hash, &method_exists, &imethod.is_compat);
if (unlikely(!method_exists)) {
ERR_FAIL_COND_V_MSG(!virtual_method_list.find(method_info), false,
"Missing MethodBind for non-virtual method: '" + itype.name + "." + imethod.name + "'.");
}
}
imethod.is_vararg = m && m->is_vararg();
if (!m && !imethod.is_virtual) {
ERR_FAIL_COND_V_MSG(!virtual_method_list.find(method_info), false,
"Missing MethodBind for non-virtual method: '" + itype.name + "." + imethod.name + "'.");
// A virtual method without the virtual flag. This is a special case.
// There is no method bind, so let's fallback to Godot's object.Call(string, params)
imethod.requires_object_call = true;
// The method Object.free is registered as a virtual method, but without the virtual flag.
// This is because this method is not supposed to be overridden, but called.
// We assume the return type is void.
imethod.return_type.cname = name_cache.type_void;
// Actually, more methods like this may be added in the future, which could return
// something different. Let's put this check to notify us if that ever happens.
if (itype.cname != name_cache.type_Object || imethod.name != "free") {
WARN_PRINT("Notification: New unexpected virtual non-overridable method found."
" We only expected Object.free, but found '" +
itype.name + "." + imethod.name + "'.");
}
} else if (return_info.type == Variant::INT && return_info.usage & (PROPERTY_USAGE_CLASS_IS_ENUM | PROPERTY_USAGE_CLASS_IS_BITFIELD)) {
imethod.return_type.cname = return_info.class_name;
imethod.return_type.is_enum = true;
} else if (return_info.class_name != StringName()) {
imethod.return_type.cname = return_info.class_name;
bool bad_reference_hint = !imethod.is_virtual && return_info.hint != PROPERTY_HINT_RESOURCE_TYPE &&
ClassDB::is_parent_class(return_info.class_name, name_cache.type_RefCounted);
ERR_FAIL_COND_V_MSG(bad_reference_hint, false,
String() + "Return type is reference but hint is not '" _STR(PROPERTY_HINT_RESOURCE_TYPE) "'." +
" Are you returning a reference type by pointer? Method: '" + itype.name + "." + imethod.name + "'.");
} else if (return_info.type == Variant::ARRAY && return_info.hint == PROPERTY_HINT_ARRAY_TYPE) {
imethod.return_type.cname = Variant::get_type_name(return_info.type) + "_@generic";
imethod.return_type.generic_type_parameters.push_back(TypeReference(return_info.hint_string));
} else if (return_info.hint == PROPERTY_HINT_RESOURCE_TYPE) {
imethod.return_type.cname = return_info.hint_string;
} else if (return_info.type == Variant::NIL && return_info.usage & PROPERTY_USAGE_NIL_IS_VARIANT) {
imethod.return_type.cname = name_cache.type_Variant;
} else if (return_info.type == Variant::NIL) {
imethod.return_type.cname = name_cache.type_void;
} else {
imethod.return_type.cname = _get_type_name_from_meta(return_info.type, m ? m->get_argument_meta(-1) : (GodotTypeInfo::Metadata)method_info.return_val_metadata);
}
for (int i = 0; i < argc; i++) {
PropertyInfo arginfo = method_info.arguments[i];
String orig_arg_name = arginfo.name;
ArgumentInterface iarg;
iarg.name = orig_arg_name;
if (arginfo.type == Variant::INT && arginfo.usage & (PROPERTY_USAGE_CLASS_IS_ENUM | PROPERTY_USAGE_CLASS_IS_BITFIELD)) {
iarg.type.cname = arginfo.class_name;
iarg.type.is_enum = true;
} else if (arginfo.class_name != StringName()) {
iarg.type.cname = arginfo.class_name;
} else if (arginfo.type == Variant::ARRAY && arginfo.hint == PROPERTY_HINT_ARRAY_TYPE) {
iarg.type.cname = Variant::get_type_name(arginfo.type) + "_@generic";
iarg.type.generic_type_parameters.push_back(TypeReference(arginfo.hint_string));
} else if (arginfo.hint == PROPERTY_HINT_RESOURCE_TYPE) {
iarg.type.cname = arginfo.hint_string;
} else if (arginfo.type == Variant::NIL) {
iarg.type.cname = name_cache.type_Variant;
} else {
iarg.type.cname = _get_type_name_from_meta(arginfo.type, m ? m->get_argument_meta(i) : (GodotTypeInfo::Metadata)method_info.get_argument_meta(i));
}
iarg.name = escape_csharp_keyword(snake_to_camel_case(iarg.name));
if (m && m->has_default_argument(i)) {
bool defval_ok = _arg_default_value_from_variant(m->get_default_argument(i), iarg);
ERR_FAIL_COND_V_MSG(!defval_ok, false,
"Cannot determine default value for argument '" + orig_arg_name + "' of method '" + itype.name + "." + imethod.name + "'.");
}
imethod.add_argument(iarg);
}
if (imethod.is_vararg) {
ArgumentInterface ivararg;
ivararg.type.cname = name_cache.type_VarArg;
ivararg.name = "@args";
imethod.add_argument(ivararg);
}
imethod.proxy_name = escape_csharp_keyword(snake_to_pascal_case(imethod.name));
// Prevent the method and its enclosing type from sharing the same name
if (imethod.proxy_name == itype.proxy_name) {
_log("Name of method '%s' is ambiguous with the name of its enclosing class '%s'. Renaming method to '%s_'\n",
imethod.proxy_name.utf8().get_data(), itype.proxy_name.utf8().get_data(), imethod.proxy_name.utf8().get_data());
imethod.proxy_name += "_";
}
HashMap<StringName, StringName>::Iterator accessor = accessor_methods.find(imethod.cname);
if (accessor) {
// We only hide an accessor method if it's in the same class as the property.
// It's easier this way, but also we don't know if an accessor method in a different class
// could have other purposes, so better leave those untouched.
imethod.is_hidden = true;
}
if (itype.class_doc) {
for (int i = 0; i < itype.class_doc->methods.size(); i++) {
if (itype.class_doc->methods[i].name == imethod.name) {
imethod.method_doc = &itype.class_doc->methods[i];
break;
}
}
}
if (imethod.method_doc) {
imethod.is_deprecated = imethod.method_doc->is_deprecated;
imethod.deprecation_message = imethod.method_doc->deprecated_message;
if (imethod.is_deprecated && imethod.deprecation_message.is_empty()) {
WARN_PRINT("An empty deprecation message is discouraged. Method: '" + itype.proxy_name + "." + imethod.proxy_name + "'.");
imethod.deprecation_message = "This method is deprecated.";
}
}
ERR_FAIL_COND_V_MSG(itype.find_property_by_name(imethod.cname), false,
"Method name conflicts with property: '" + itype.name + "." + imethod.name + "'.");
// Compat methods aren't added to the type yet, they need to be checked for conflicts
// after all the non-compat methods have been added. The compat methods are added in
// reverse so the most recently added ones take precedence over older compat methods.
if (imethod.is_compat) {
imethod.is_hidden = true;
compat_methods.push_front(imethod);
continue;
}
// Methods starting with an underscore are ignored unless they're used as a property setter or getter
if (!imethod.is_virtual && imethod.name[0] == '_') {
for (const PropertyInterface &iprop : itype.properties) {
if (iprop.setter == imethod.name || iprop.getter == imethod.name) {
imethod.is_internal = true;
itype.methods.push_back(imethod);
break;
}
}
} else {
itype.methods.push_back(imethod);
}
}
// Add compat methods that don't conflict with other methods in the type.
for (const MethodInterface &imethod : compat_methods) {
if (_method_has_conflicting_signature(imethod, itype)) {
WARN_PRINT("Method '" + imethod.name + "' conflicts with an already existing method in type '" + itype.name + "' and has been ignored.");
continue;
}
itype.methods.push_back(imethod);
}
// Populate signals
const HashMap<StringName, MethodInfo> &signal_map = class_info->signal_map;
for (const KeyValue<StringName, MethodInfo> &E : signal_map) {
SignalInterface isignal;
const MethodInfo &method_info = E.value;
isignal.name = method_info.name;
isignal.cname = method_info.name;
int argc = method_info.arguments.size();
for (int i = 0; i < argc; i++) {
PropertyInfo arginfo = method_info.arguments[i];
String orig_arg_name = arginfo.name;
ArgumentInterface iarg;
iarg.name = orig_arg_name;
if (arginfo.type == Variant::INT && arginfo.usage & (PROPERTY_USAGE_CLASS_IS_ENUM | PROPERTY_USAGE_CLASS_IS_BITFIELD)) {
iarg.type.cname = arginfo.class_name;
iarg.type.is_enum = true;
} else if (arginfo.class_name != StringName()) {
iarg.type.cname = arginfo.class_name;
} else if (arginfo.type == Variant::ARRAY && arginfo.hint == PROPERTY_HINT_ARRAY_TYPE) {
iarg.type.cname = Variant::get_type_name(arginfo.type) + "_@generic";
iarg.type.generic_type_parameters.push_back(TypeReference(arginfo.hint_string));
} else if (arginfo.hint == PROPERTY_HINT_RESOURCE_TYPE) {
iarg.type.cname = arginfo.hint_string;
} else if (arginfo.type == Variant::NIL) {
iarg.type.cname = name_cache.type_Variant;
} else {
iarg.type.cname = _get_type_name_from_meta(arginfo.type, (GodotTypeInfo::Metadata)method_info.get_argument_meta(i));
}
iarg.name = escape_csharp_keyword(snake_to_camel_case(iarg.name));
isignal.add_argument(iarg);
}
isignal.proxy_name = escape_csharp_keyword(snake_to_pascal_case(isignal.name));
// Prevent the signal and its enclosing type from sharing the same name
if (isignal.proxy_name == itype.proxy_name) {
_log("Name of signal '%s' is ambiguous with the name of its enclosing class '%s'. Renaming signal to '%s_'\n",
isignal.proxy_name.utf8().get_data(), itype.proxy_name.utf8().get_data(), isignal.proxy_name.utf8().get_data());
isignal.proxy_name += "_";
}
if (itype.find_property_by_proxy_name(isignal.proxy_name) || itype.find_method_by_proxy_name(isignal.proxy_name)) {
// ClassDB allows signal names that conflict with method or property names.
// While registering a signal with a conflicting name is considered wrong,
// it may still happen and it may take some time until someone fixes the name.
// We can't allow the bindings to be in a broken state while we wait for a fix;
// that's why we must handle this possibility by renaming the signal.
isignal.proxy_name += "Signal";
}
if (itype.class_doc) {
for (int i = 0; i < itype.class_doc->signals.size(); i++) {
const DocData::MethodDoc &signal_doc = itype.class_doc->signals[i];
if (signal_doc.name == isignal.name) {
isignal.method_doc = &signal_doc;
break;
}
}
}
if (isignal.method_doc) {
isignal.is_deprecated = isignal.method_doc->is_deprecated;
isignal.deprecation_message = isignal.method_doc->deprecated_message;
if (isignal.is_deprecated && isignal.deprecation_message.is_empty()) {
WARN_PRINT("An empty deprecation message is discouraged. Signal: '" + itype.proxy_name + "." + isignal.proxy_name + "'.");
isignal.deprecation_message = "This signal is deprecated.";
}
}
itype.signals_.push_back(isignal);
}
// Populate enums and constants
List<String> constants;
ClassDB::get_integer_constant_list(type_cname, &constants, true);
const HashMap<StringName, ClassDB::ClassInfo::EnumInfo> &enum_map = class_info->enum_map;
for (const KeyValue<StringName, ClassDB::ClassInfo::EnumInfo> &E : enum_map) {
StringName enum_proxy_cname = E.key;
String enum_proxy_name = pascal_to_pascal_case(enum_proxy_cname.operator String());
if (itype.find_property_by_proxy_name(enum_proxy_name) || itype.find_method_by_proxy_name(enum_proxy_name) || itype.find_signal_by_proxy_name(enum_proxy_name)) {
// In case the enum name conflicts with other PascalCase members,
// we append 'Enum' to the enum name in those cases.
// We have several conflicts between enums and PascalCase properties.
enum_proxy_name += "Enum";
enum_proxy_cname = StringName(enum_proxy_name);
}
EnumInterface ienum(enum_proxy_cname, enum_proxy_name, E.value.is_bitfield);
const List<StringName> &enum_constants = E.value.constants;
for (const StringName &constant_cname : enum_constants) {
String constant_name = constant_cname.operator String();
int64_t *value = class_info->constant_map.getptr(constant_cname);
ERR_FAIL_NULL_V(value, false);
constants.erase(constant_name);
ConstantInterface iconstant(constant_name, snake_to_pascal_case(constant_name, true), *value);
iconstant.const_doc = nullptr;
for (int i = 0; i < itype.class_doc->constants.size(); i++) {
const DocData::ConstantDoc &const_doc = itype.class_doc->constants[i];
if (const_doc.name == iconstant.name) {
iconstant.const_doc = &const_doc;
break;
}
}
if (iconstant.const_doc) {
iconstant.is_deprecated = iconstant.const_doc->is_deprecated;
iconstant.deprecation_message = iconstant.const_doc->deprecated_message;
if (iconstant.is_deprecated && iconstant.deprecation_message.is_empty()) {
WARN_PRINT("An empty deprecation message is discouraged. Enum member: '" + itype.proxy_name + "." + ienum.proxy_name + "." + iconstant.proxy_name + "'.");
iconstant.deprecation_message = "This enum member is deprecated.";
}
}
ienum.constants.push_back(iconstant);
}
int prefix_length = _determine_enum_prefix(ienum);
_apply_prefix_to_enum_constants(ienum, prefix_length);
itype.enums.push_back(ienum);
TypeInterface enum_itype;
enum_itype.is_enum = true;
enum_itype.name = itype.name + "." + String(E.key);
enum_itype.cname = StringName(enum_itype.name);
enum_itype.proxy_name = itype.proxy_name + "." + enum_proxy_name;
TypeInterface::postsetup_enum_type(enum_itype);
enum_types.insert(enum_itype.cname, enum_itype);
}
for (const String &constant_name : constants) {
int64_t *value = class_info->constant_map.getptr(StringName(constant_name));
ERR_FAIL_NULL_V(value, false);
String constant_proxy_name = snake_to_pascal_case(constant_name, true);
if (itype.find_property_by_proxy_name(constant_proxy_name) || itype.find_method_by_proxy_name(constant_proxy_name) || itype.find_signal_by_proxy_name(constant_proxy_name)) {
// In case the constant name conflicts with other PascalCase members,
// we append 'Constant' to the constant name in those cases.
constant_proxy_name += "Constant";
}
ConstantInterface iconstant(constant_name, constant_proxy_name, *value);
iconstant.const_doc = nullptr;
for (int i = 0; i < itype.class_doc->constants.size(); i++) {
const DocData::ConstantDoc &const_doc = itype.class_doc->constants[i];
if (const_doc.name == iconstant.name) {
iconstant.const_doc = &const_doc;
break;
}
}
if (iconstant.const_doc) {
iconstant.is_deprecated = iconstant.const_doc->is_deprecated;
iconstant.deprecation_message = iconstant.const_doc->deprecated_message;
if (iconstant.is_deprecated && iconstant.deprecation_message.is_empty()) {
WARN_PRINT("An empty deprecation message is discouraged. Constant: '" + itype.proxy_name + "." + iconstant.proxy_name + "'.");
iconstant.deprecation_message = "This constant is deprecated.";
}
}
itype.constants.push_back(iconstant);
}
obj_types.insert(itype.cname, itype);
if (itype.is_singleton) {
// Add singleton instance type.
itype.proxy_name += CS_SINGLETON_INSTANCE_SUFFIX;
itype.is_singleton = false;
itype.is_singleton_instance = true;
// Remove constants and enums, those will remain in the static class.
itype.constants.clear();
itype.enums.clear();
obj_types.insert(itype.name + CS_SINGLETON_INSTANCE_SUFFIX, itype);
}
class_list.pop_front();
}
return true;
}
bool BindingsGenerator::_arg_default_value_from_variant(const Variant &p_val, ArgumentInterface &r_iarg) {
r_iarg.def_param_value = p_val;
r_iarg.default_argument = p_val.operator String();
switch (p_val.get_type()) {
case Variant::NIL:
// Either Object type or Variant
r_iarg.default_argument = "default";
break;
// Atomic types
case Variant::BOOL:
r_iarg.default_argument = bool(p_val) ? "true" : "false";
break;
case Variant::INT:
if (r_iarg.type.cname != name_cache.type_int) {
r_iarg.default_argument = "(%s)(" + r_iarg.default_argument + ")";
}
break;
case Variant::FLOAT:
if (r_iarg.type.cname == name_cache.type_float) {
r_iarg.default_argument += "f";
}
break;
case Variant::STRING:
case Variant::STRING_NAME:
case Variant::NODE_PATH:
if (r_iarg.type.cname == name_cache.type_StringName || r_iarg.type.cname == name_cache.type_NodePath) {
if (r_iarg.default_argument.length() > 0) {
r_iarg.default_argument = "(%s)\"" + r_iarg.default_argument + "\"";
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_REF;
} else {
// No need for a special `in` statement to change `null` to `""`. Marshaling takes care of this already.
r_iarg.default_argument = "null";
}
} else {
CRASH_COND(r_iarg.type.cname != name_cache.type_String);
r_iarg.default_argument = "\"" + r_iarg.default_argument + "\"";
}
break;
case Variant::PLANE: {
Plane plane = p_val.operator Plane();
r_iarg.default_argument = "new Plane(new Vector3" + plane.normal.operator String() + ", " + rtos(plane.d) + ")";
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
} break;
case Variant::AABB: {
AABB aabb = p_val.operator ::AABB();
r_iarg.default_argument = "new Aabb(new Vector3" + aabb.position.operator String() + ", new Vector3" + aabb.size.operator String() + ")";
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
} break;
case Variant::RECT2: {
Rect2 rect = p_val.operator Rect2();
r_iarg.default_argument = "new Rect2(new Vector2" + rect.position.operator String() + ", new Vector2" + rect.size.operator String() + ")";
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
} break;
case Variant::RECT2I: {
Rect2i rect = p_val.operator Rect2i();
r_iarg.default_argument = "new Rect2I(new Vector2I" + rect.position.operator String() + ", new Vector2I" + rect.size.operator String() + ")";
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
} break;
case Variant::COLOR:
case Variant::VECTOR2:
case Variant::VECTOR2I:
case Variant::VECTOR3:
case Variant::VECTOR3I:
r_iarg.default_argument = "new %s" + r_iarg.default_argument;
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
break;
case Variant::VECTOR4:
case Variant::VECTOR4I:
r_iarg.default_argument = "new %s" + r_iarg.default_argument;
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
break;
case Variant::OBJECT:
ERR_FAIL_COND_V_MSG(!p_val.is_zero(), false,
"Parameter of type '" + String(r_iarg.type.cname) + "' can only have null/zero as the default value.");
r_iarg.default_argument = "null";
break;
case Variant::DICTIONARY:
ERR_FAIL_COND_V_MSG(!p_val.operator Dictionary().is_empty(), false,
"Default value of type 'Dictionary' must be an empty dictionary.");
// The [cs_in] expression already interprets null values as empty dictionaries.
r_iarg.default_argument = "null";
r_iarg.def_param_mode = ArgumentInterface::CONSTANT;
break;
case Variant::RID:
ERR_FAIL_COND_V_MSG(r_iarg.type.cname != name_cache.type_RID, false,
"Parameter of type '" + String(r_iarg.type.cname) + "' cannot have a default value of type '" + String(name_cache.type_RID) + "'.");
ERR_FAIL_COND_V_MSG(!p_val.is_zero(), false,
"Parameter of type '" + String(r_iarg.type.cname) + "' can only have null/zero as the default value.");
r_iarg.default_argument = "default";
break;
case Variant::ARRAY:
ERR_FAIL_COND_V_MSG(!p_val.operator Array().is_empty(), false,
"Default value of type 'Array' must be an empty array.");
// The [cs_in] expression already interprets null values as empty arrays.
r_iarg.default_argument = "null";
r_iarg.def_param_mode = ArgumentInterface::CONSTANT;
break;
case Variant::PACKED_BYTE_ARRAY:
case Variant::PACKED_INT32_ARRAY:
case Variant::PACKED_INT64_ARRAY:
case Variant::PACKED_FLOAT32_ARRAY:
case Variant::PACKED_FLOAT64_ARRAY:
case Variant::PACKED_STRING_ARRAY:
case Variant::PACKED_VECTOR2_ARRAY:
case Variant::PACKED_VECTOR3_ARRAY:
case Variant::PACKED_VECTOR4_ARRAY:
case Variant::PACKED_COLOR_ARRAY:
r_iarg.default_argument = "Array.Empty<%s>()";
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_REF;
break;
case Variant::TRANSFORM2D: {
Transform2D transform = p_val.operator Transform2D();
if (transform == Transform2D()) {
r_iarg.default_argument = "Transform2D.Identity";
} else {
r_iarg.default_argument = "new Transform2D(new Vector2" + transform.columns[0].operator String() + ", new Vector2" + transform.columns[1].operator String() + ", new Vector2" + transform.columns[2].operator String() + ")";
}
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
} break;
case Variant::TRANSFORM3D: {
Transform3D transform = p_val.operator Transform3D();
if (transform == Transform3D()) {
r_iarg.default_argument = "Transform3D.Identity";
} else {
Basis basis = transform.basis;
r_iarg.default_argument = "new Transform3D(new Vector3" + basis.get_column(0).operator String() + ", new Vector3" + basis.get_column(1).operator String() + ", new Vector3" + basis.get_column(2).operator String() + ", new Vector3" + transform.origin.operator String() + ")";
}
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
} break;
case Variant::PROJECTION: {
Projection projection = p_val.operator Projection();
if (projection == Projection()) {
r_iarg.default_argument = "Projection.Identity";
} else {
r_iarg.default_argument = "new Projection(new Vector4" + projection.columns[0].operator String() + ", new Vector4" + projection.columns[1].operator String() + ", new Vector4" + projection.columns[2].operator String() + ", new Vector4" + projection.columns[3].operator String() + ")";
}
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
} break;
case Variant::BASIS: {
Basis basis = p_val.operator Basis();
if (basis == Basis()) {
r_iarg.default_argument = "Basis.Identity";
} else {
r_iarg.default_argument = "new Basis(new Vector3" + basis.get_column(0).operator String() + ", new Vector3" + basis.get_column(1).operator String() + ", new Vector3" + basis.get_column(2).operator String() + ")";
}
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
} break;
case Variant::QUATERNION: {
Quaternion quaternion = p_val.operator Quaternion();
if (quaternion == Quaternion()) {
r_iarg.default_argument = "Quaternion.Identity";
} else {
r_iarg.default_argument = "new Quaternion" + quaternion.operator String();
}
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
} break;
case Variant::CALLABLE:
ERR_FAIL_COND_V_MSG(r_iarg.type.cname != name_cache.type_Callable, false,
"Parameter of type '" + String(r_iarg.type.cname) + "' cannot have a default value of type '" + String(name_cache.type_Callable) + "'.");
ERR_FAIL_COND_V_MSG(!p_val.is_zero(), false,
"Parameter of type '" + String(r_iarg.type.cname) + "' can only have null/zero as the default value.");
r_iarg.default_argument = "default";
break;
case Variant::SIGNAL:
ERR_FAIL_COND_V_MSG(r_iarg.type.cname != name_cache.type_Signal, false,
"Parameter of type '" + String(r_iarg.type.cname) + "' cannot have a default value of type '" + String(name_cache.type_Signal) + "'.");
ERR_FAIL_COND_V_MSG(!p_val.is_zero(), false,
"Parameter of type '" + String(r_iarg.type.cname) + "' can only have null/zero as the default value.");
r_iarg.default_argument = "default";
break;
default:
ERR_FAIL_V_MSG(false, "Unexpected Variant type: " + itos(p_val.get_type()));
break;
}
if (r_iarg.def_param_mode == ArgumentInterface::CONSTANT && r_iarg.type.cname == name_cache.type_Variant && r_iarg.default_argument != "default") {
r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
}
return true;
}
void BindingsGenerator::_populate_builtin_type_interfaces() {
builtin_types.clear();
TypeInterface itype;
#define INSERT_STRUCT_TYPE(m_type, m_proxy_name) \
{ \
itype = TypeInterface::create_value_type(String(#m_type), String(#m_proxy_name)); \
itype.cs_in_expr = "&%0"; \
itype.cs_in_expr_is_unsafe = true; \
builtin_types.insert(itype.cname, itype); \
}
INSERT_STRUCT_TYPE(Vector2, Vector2)
INSERT_STRUCT_TYPE(Vector2i, Vector2I)
INSERT_STRUCT_TYPE(Rect2, Rect2)
INSERT_STRUCT_TYPE(Rect2i, Rect2I)
INSERT_STRUCT_TYPE(Transform2D, Transform2D)
INSERT_STRUCT_TYPE(Vector3, Vector3)
INSERT_STRUCT_TYPE(Vector3i, Vector3I)
INSERT_STRUCT_TYPE(Basis, Basis)
INSERT_STRUCT_TYPE(Quaternion, Quaternion)
INSERT_STRUCT_TYPE(Transform3D, Transform3D)
INSERT_STRUCT_TYPE(AABB, Aabb)
INSERT_STRUCT_TYPE(Color, Color)
INSERT_STRUCT_TYPE(Plane, Plane)
INSERT_STRUCT_TYPE(Vector4, Vector4)
INSERT_STRUCT_TYPE(Vector4i, Vector4I)
INSERT_STRUCT_TYPE(Projection, Projection)
#undef INSERT_STRUCT_TYPE
// bool
itype = TypeInterface::create_value_type(String("bool"));
itype.cs_in_expr = "%0.ToGodotBool()";
itype.cs_out = "%5return %0(%1).ToBool();";
itype.c_type = "godot_bool";
itype.c_type_in = itype.c_type;
itype.c_type_out = itype.c_type;
itype.c_arg_in = "&%s";
itype.c_in_vararg = "%5using godot_variant %1_in = VariantUtils.CreateFromBool(%1);\n";
builtin_types.insert(itype.cname, itype);
// Integer types
{
// C interface for 'uint32_t' is the same as that of enums. Remember to apply
// any of the changes done here to 'TypeInterface::postsetup_enum_type' as well.
#define INSERT_INT_TYPE(m_name, m_int_struct_name) \
{ \
itype = TypeInterface::create_value_type(String(m_name)); \
if (itype.name != "long" && itype.name != "ulong") { \
itype.c_in = "%5%0 %1_in = %1;\n"; \
itype.c_out = "%5return (%0)(%1);\n"; \
itype.c_type = "long"; \
itype.c_arg_in = "&%s_in"; \
} else { \
itype.c_arg_in = "&%s"; \
} \
itype.c_type_in = itype.name; \
itype.c_type_out = itype.name; \
itype.c_in_vararg = "%5using godot_variant %1_in = VariantUtils.CreateFromInt(%1);\n"; \
builtin_types.insert(itype.cname, itype); \
}
// The expected type for all integers in ptrcall is 'int64_t', so that's what we use for 'c_type'
INSERT_INT_TYPE("sbyte", "Int8");
INSERT_INT_TYPE("short", "Int16");
INSERT_INT_TYPE("int", "Int32");
INSERT_INT_TYPE("long", "Int64");
INSERT_INT_TYPE("byte", "UInt8");
INSERT_INT_TYPE("ushort", "UInt16");
INSERT_INT_TYPE("uint", "UInt32");
INSERT_INT_TYPE("ulong", "UInt64");
#undef INSERT_INT_TYPE
}
// Floating point types
{
// float
itype = TypeInterface();
itype.name = "float";
itype.cname = itype.name;
itype.proxy_name = "float";
itype.cs_type = itype.proxy_name;
{
// The expected type for 'float' in ptrcall is 'double'
itype.c_in = "%5%0 %1_in = %1;\n";
itype.c_out = "%5return (%0)%1;\n";
itype.c_type = "double";
itype.c_arg_in = "&%s_in";
}
itype.c_type_in = itype.proxy_name;
itype.c_type_out = itype.proxy_name;
itype.c_in_vararg = "%5using godot_variant %1_in = VariantUtils.CreateFromFloat(%1);\n";
builtin_types.insert(itype.cname, itype);
// double
itype = TypeInterface();
itype.name = "double";
itype.cname = itype.name;
itype.proxy_name = "double";
itype.cs_type = itype.proxy_name;
itype.c_type = "double";
itype.c_arg_in = "&%s";
itype.c_type_in = itype.proxy_name;
itype.c_type_out = itype.proxy_name;
itype.c_in_vararg = "%5using godot_variant %1_in = VariantUtils.CreateFromFloat(%1);\n";
builtin_types.insert(itype.cname, itype);
}
// String
itype = TypeInterface();
itype.name = "String";
itype.cname = itype.name;
itype.proxy_name = "string";
itype.cs_type = itype.proxy_name;
itype.c_in = "%5using %0 %1_in = " C_METHOD_MONOSTR_TO_GODOT "(%1);\n";
itype.c_out = "%5return " C_METHOD_MONOSTR_FROM_GODOT "(%1);\n";
itype.c_arg_in = "&%s_in";
itype.c_type = "godot_string";
itype.c_type_in = itype.cs_type;
itype.c_type_out = itype.cs_type;
itype.c_type_is_disposable_struct = true;
itype.c_in_vararg = "%5using godot_variant %1_in = VariantUtils.CreateFromString(%1);\n";
builtin_types.insert(itype.cname, itype);
// StringName
itype = TypeInterface();
itype.name = "StringName";
itype.cname = itype.name;
itype.proxy_name = "StringName";
itype.cs_type = itype.proxy_name;
itype.cs_in_expr = "(%1)(%0?.NativeValue ?? default)";
// Cannot pass null StringName to ptrcall
itype.c_out = "%5return %0.CreateTakingOwnershipOfDisposableValue(%1);\n";
itype.c_arg_in = "&%s";
itype.c_type = "godot_string_name";
itype.c_type_in = itype.c_type;
itype.c_type_out = itype.cs_type;
itype.c_in_vararg = "%5using godot_variant %1_in = VariantUtils.CreateFromStringName(%1);\n";
itype.c_type_is_disposable_struct = false; // [c_out] takes ownership
itype.c_ret_needs_default_initialization = true;
builtin_types.insert(itype.cname, itype);
// NodePath
itype = TypeInterface();
itype.name = "NodePath";
itype.cname = itype.name;
itype.proxy_name = "NodePath";
itype.cs_type = itype.proxy_name;
itype.cs_in_expr = "(%1)(%0?.NativeValue ?? default)";
// Cannot pass null NodePath to ptrcall
itype.c_out = "%5return %0.CreateTakingOwnershipOfDisposableValue(%1);\n";
itype.c_arg_in = "&%s";
itype.c_type = "godot_node_path";
itype.c_type_in = itype.c_type;
itype.c_type_out = itype.cs_type;
itype.c_type_is_disposable_struct = false; // [c_out] takes ownership
itype.c_ret_needs_default_initialization = true;
builtin_types.insert(itype.cname, itype);
// RID
itype = TypeInterface();
itype.name = "RID";
itype.cname = itype.name;
itype.proxy_name = "Rid";
itype.cs_type = itype.proxy_name;
itype.c_arg_in = "&%s";
itype.c_type = itype.cs_type;
itype.c_type_in = itype.c_type;
itype.c_type_out = itype.c_type;
builtin_types.insert(itype.cname, itype);
// Variant
itype = TypeInterface();
itype.name = "Variant";
itype.cname = itype.name;
itype.proxy_name = "Variant";
itype.cs_type = itype.proxy_name;
itype.c_in = "%5%0 %1_in = (%0)%1.NativeVar;\n";
itype.c_out = "%5return Variant.CreateTakingOwnershipOfDisposableValue(%1);\n";
itype.c_arg_in = "&%s_in";
itype.c_type = "godot_variant";
itype.c_type_in = itype.cs_type;
itype.c_type_out = itype.cs_type;
itype.c_type_is_disposable_struct = false; // [c_out] takes ownership
itype.c_ret_needs_default_initialization = true;
builtin_types.insert(itype.cname, itype);
// Callable
itype = TypeInterface::create_value_type(String("Callable"));
itype.cs_in_expr = "%0";
itype.c_in = "%5using %0 %1_in = " C_METHOD_MANAGED_TO_CALLABLE "(in %1);\n";
itype.c_out = "%5return " C_METHOD_MANAGED_FROM_CALLABLE "(in %1);\n";
itype.c_arg_in = "&%s_in";
itype.c_type = "godot_callable";
itype.c_type_in = "in " + itype.cs_type;
itype.c_type_out = itype.cs_type;
itype.c_type_is_disposable_struct = true;
builtin_types.insert(itype.cname, itype);
// Signal
itype = TypeInterface();
itype.name = "Signal";
itype.cname = itype.name;
itype.proxy_name = "Signal";
itype.cs_type = itype.proxy_name;
itype.cs_in_expr = "%0";
itype.c_in = "%5using %0 %1_in = " C_METHOD_MANAGED_TO_SIGNAL "(in %1);\n";
itype.c_out = "%5return " C_METHOD_MANAGED_FROM_SIGNAL "(in %1);\n";
itype.c_arg_in = "&%s_in";
itype.c_type = "godot_signal";
itype.c_type_in = "in " + itype.cs_type;
itype.c_type_out = itype.cs_type;
itype.c_type_is_disposable_struct = true;
builtin_types.insert(itype.cname, itype);
// VarArg (fictitious type to represent variable arguments)
itype = TypeInterface();
itype.name = "VarArg";
itype.cname = itype.name;
itype.proxy_name = "Variant[]";
itype.cs_type = "params Variant[]";
itype.cs_in_expr = "%0 ?? Array.Empty<Variant>()";
// c_type, c_in and c_arg_in are hard-coded in the generator.
// c_out and c_type_out are not applicable to VarArg.
itype.c_arg_in = "&%s_in";
itype.c_type_in = "Variant[]";
builtin_types.insert(itype.cname, itype);
#define INSERT_ARRAY_FULL(m_name, m_type, m_managed_type, m_proxy_t) \
{ \
itype = TypeInterface(); \
itype.name = #m_name; \
itype.cname = itype.name; \
itype.proxy_name = #m_proxy_t "[]"; \
itype.cs_type = itype.proxy_name; \
itype.c_in = "%5using %0 %1_in = " C_METHOD_MONOARRAY_TO(m_type) "(%1);\n"; \
itype.c_out = "%5return " C_METHOD_MONOARRAY_FROM(m_type) "(%1);\n"; \
itype.c_arg_in = "&%s_in"; \
itype.c_type = #m_managed_type; \
itype.c_type_in = itype.proxy_name; \
itype.c_type_out = itype.proxy_name; \
itype.c_type_is_disposable_struct = true; \
builtin_types.insert(itype.name, itype); \
}
#define INSERT_ARRAY(m_type, m_managed_type, m_proxy_t) INSERT_ARRAY_FULL(m_type, m_type, m_managed_type, m_proxy_t)
INSERT_ARRAY(PackedInt32Array, godot_packed_int32_array, int);
INSERT_ARRAY(PackedInt64Array, godot_packed_int64_array, long);
INSERT_ARRAY_FULL(PackedByteArray, PackedByteArray, godot_packed_byte_array, byte);
INSERT_ARRAY(PackedFloat32Array, godot_packed_float32_array, float);
INSERT_ARRAY(PackedFloat64Array, godot_packed_float64_array, double);
INSERT_ARRAY(PackedStringArray, godot_packed_string_array, string);
INSERT_ARRAY(PackedColorArray, godot_packed_color_array, Color);
INSERT_ARRAY(PackedVector2Array, godot_packed_vector2_array, Vector2);
INSERT_ARRAY(PackedVector3Array, godot_packed_vector3_array, Vector3);
INSERT_ARRAY(PackedVector4Array, godot_packed_vector4_array, Vector4);
#undef INSERT_ARRAY
// Array
itype = TypeInterface();
itype.name = "Array";
itype.cname = itype.name;
itype.proxy_name = itype.name;
itype.type_parameter_count = 1;
itype.cs_type = BINDINGS_NAMESPACE_COLLECTIONS "." + itype.proxy_name;
itype.cs_in_expr = "(%1)(%0 ?? new()).NativeValue";
itype.c_out = "%5return %0.CreateTakingOwnershipOfDisposableValue(%1);\n";
itype.c_arg_in = "&%s";
itype.c_type = "godot_array";
itype.c_type_in = itype.c_type;
itype.c_type_out = itype.cs_type;
itype.c_type_is_disposable_struct = false; // [c_out] takes ownership
itype.c_ret_needs_default_initialization = true;
builtin_types.insert(itype.cname, itype);
// Array_@generic
// Reuse Array's itype
itype.name = "Array_@generic";
itype.cname = itype.name;
itype.cs_out = "%5return new %2(%0(%1));";
// For generic Godot collections, Variant.From<T>/As<T> is slower, so we need this special case
itype.cs_variant_to_managed = "VariantUtils.ConvertToArray(%0)";
itype.cs_managed_to_variant = "VariantUtils.CreateFromArray(%0)";
builtin_types.insert(itype.cname, itype);
// Dictionary
itype = TypeInterface();
itype.name = "Dictionary";
itype.cname = itype.name;
itype.proxy_name = itype.name;
itype.type_parameter_count = 2;
itype.cs_type = BINDINGS_NAMESPACE_COLLECTIONS "." + itype.proxy_name;
itype.cs_in_expr = "(%1)(%0 ?? new()).NativeValue";
itype.c_out = "%5return %0.CreateTakingOwnershipOfDisposableValue(%1);\n";
itype.c_arg_in = "&%s";
itype.c_type = "godot_dictionary";
itype.c_type_in = itype.c_type;
itype.c_type_out = itype.cs_type;
itype.c_type_is_disposable_struct = false; // [c_out] takes ownership
itype.c_ret_needs_default_initialization = true;
builtin_types.insert(itype.cname, itype);
// Dictionary_@generic
// Reuse Dictionary's itype
itype.name = "Dictionary_@generic";
itype.cname = itype.name;
itype.cs_out = "%5return new %2(%0(%1));";
// For generic Godot collections, Variant.From<T>/As<T> is slower, so we need this special case
itype.cs_variant_to_managed = "VariantUtils.ConvertToDictionary(%0)";
itype.cs_managed_to_variant = "VariantUtils.CreateFromDictionary(%0)";
builtin_types.insert(itype.cname, itype);
// void (fictitious type to represent the return type of methods that do not return anything)
itype = TypeInterface();
itype.name = "void";
itype.cname = itype.name;
itype.proxy_name = itype.name;
itype.cs_type = itype.proxy_name;
itype.c_type = itype.proxy_name;
itype.c_type_in = itype.c_type;
itype.c_type_out = itype.c_type;
builtin_types.insert(itype.cname, itype);
}
void BindingsGenerator::_populate_global_constants() {
int global_constants_count = CoreConstants::get_global_constant_count();
if (global_constants_count > 0) {
HashMap<String, DocData::ClassDoc>::Iterator match = EditorHelp::get_doc_data()->class_list.find("@GlobalScope");
CRASH_COND_MSG(!match, "Could not find '@GlobalScope' in DocData.");
const DocData::ClassDoc &global_scope_doc = match->value;
for (int i = 0; i < global_constants_count; i++) {
String constant_name = CoreConstants::get_global_constant_name(i);
const DocData::ConstantDoc *const_doc = nullptr;
for (int j = 0; j < global_scope_doc.constants.size(); j++) {
const DocData::ConstantDoc &curr_const_doc = global_scope_doc.constants[j];
if (curr_const_doc.name == constant_name) {
const_doc = &curr_const_doc;
break;
}
}
int64_t constant_value = CoreConstants::get_global_constant_value(i);
StringName enum_name = CoreConstants::get_global_constant_enum(i);
ConstantInterface iconstant(constant_name, snake_to_pascal_case(constant_name, true), constant_value);
iconstant.const_doc = const_doc;
if (enum_name != StringName()) {
EnumInterface ienum(enum_name, pascal_to_pascal_case(enum_name.operator String()), CoreConstants::is_global_constant_bitfield(i));
List<EnumInterface>::Element *enum_match = global_enums.find(ienum);
if (enum_match) {
enum_match->get().constants.push_back(iconstant);
} else {
ienum.constants.push_back(iconstant);
global_enums.push_back(ienum);
}
} else {
global_constants.push_back(iconstant);
}
}
for (EnumInterface &ienum : global_enums) {
TypeInterface enum_itype;
enum_itype.is_enum = true;
enum_itype.name = ienum.cname.operator String();
enum_itype.cname = ienum.cname;
enum_itype.proxy_name = ienum.proxy_name;
TypeInterface::postsetup_enum_type(enum_itype);
enum_types.insert(enum_itype.cname, enum_itype);
int prefix_length = _determine_enum_prefix(ienum);
// HARDCODED: The Error enum have the prefix 'ERR_' for everything except 'OK' and 'FAILED'.
if (ienum.cname == name_cache.enum_Error) {
if (prefix_length > 0) { // Just in case it ever changes
ERR_PRINT("Prefix for enum '" _STR(Error) "' is not empty.");
}
prefix_length = 1; // 'ERR_'
}
_apply_prefix_to_enum_constants(ienum, prefix_length);
}
}
// HARDCODED
List<StringName> hardcoded_enums;
hardcoded_enums.push_back("Vector2.Axis");
hardcoded_enums.push_back("Vector2I.Axis");
hardcoded_enums.push_back("Vector3.Axis");
hardcoded_enums.push_back("Vector3I.Axis");
for (const StringName &enum_cname : hardcoded_enums) {
// These enums are not generated and must be written manually (e.g.: Vector3.Axis)
// Here, we assume core types do not begin with underscore
TypeInterface enum_itype;
enum_itype.is_enum = true;
enum_itype.name = enum_cname.operator String();
enum_itype.cname = enum_cname;
enum_itype.proxy_name = pascal_to_pascal_case(enum_itype.name);
TypeInterface::postsetup_enum_type(enum_itype);
enum_types.insert(enum_itype.cname, enum_itype);
}
}
bool BindingsGenerator::_method_has_conflicting_signature(const MethodInterface &p_imethod, const TypeInterface &p_itype) {
// Compare p_imethod with all the methods already registered in p_itype.
for (const MethodInterface &method : p_itype.methods) {
if (method.proxy_name == p_imethod.proxy_name) {
if (_method_has_conflicting_signature(p_imethod, method)) {
return true;
}
}
}
return false;
}
bool BindingsGenerator::_method_has_conflicting_signature(const MethodInterface &p_imethod_left, const MethodInterface &p_imethod_right) {
// Check if a method already exists in p_itype with a method signature that would conflict with p_imethod.
// The return type is ignored because only changing the return type is not enough to avoid conflicts.
// The const keyword is also ignored since it doesn't generate different C# code.
if (p_imethod_left.arguments.size() != p_imethod_right.arguments.size()) {
// Different argument count, so no conflict.
return false;
}
for (int i = 0; i < p_imethod_left.arguments.size(); i++) {
const ArgumentInterface &iarg_left = p_imethod_left.arguments[i];
const ArgumentInterface &iarg_right = p_imethod_right.arguments[i];
if (iarg_left.type.cname != iarg_right.type.cname) {
// Different types for arguments in the same position, so no conflict.
return false;
}
if (iarg_left.def_param_mode != iarg_right.def_param_mode) {
// If the argument is a value type and nullable, it will be 'Nullable<T>' instead of 'T'
// and will not create a conflict.
if (iarg_left.def_param_mode == ArgumentInterface::NULLABLE_VAL || iarg_right.def_param_mode == ArgumentInterface::NULLABLE_VAL) {
return false;
}
}
}
return true;
}
void BindingsGenerator::_initialize_blacklisted_methods() {
blacklisted_methods["Object"].push_back("to_string"); // there is already ToString
blacklisted_methods["Object"].push_back("_to_string"); // override ToString instead
blacklisted_methods["Object"].push_back("_init"); // never called in C# (TODO: implement it)
}
void BindingsGenerator::_initialize_compat_singletons() {
compat_singletons.insert("EditorInterface");
}
void BindingsGenerator::_log(const char *p_format, ...) {
if (log_print_enabled) {
va_list list;
va_start(list, p_format);
OS::get_singleton()->print("%s", str_format(p_format, list).utf8().get_data());
va_end(list);
}
}
void BindingsGenerator::_initialize() {
initialized = false;
EditorHelp::generate_doc(false);
enum_types.clear();
_initialize_blacklisted_methods();
_initialize_compat_singletons();
bool obj_type_ok = _populate_object_type_interfaces();
ERR_FAIL_COND_MSG(!obj_type_ok, "Failed to generate object type interfaces");
_populate_builtin_type_interfaces();
_populate_global_constants();
// Generate internal calls (after populating type interfaces and global constants)
for (const KeyValue<StringName, TypeInterface> &E : obj_types) {
const TypeInterface &itype = E.value;
Error err = _populate_method_icalls_table(itype);
ERR_FAIL_COND_MSG(err != OK, "Failed to generate icalls table for type: " + itype.name);
}
initialized = true;
}
static String generate_all_glue_option = "--generate-mono-glue";
static void handle_cmdline_options(String glue_dir_path) {
BindingsGenerator bindings_generator;
bindings_generator.set_log_print_enabled(true);
if (!bindings_generator.is_initialized()) {
ERR_PRINT("Failed to initialize the bindings generator");
return;
}
CRASH_COND(glue_dir_path.is_empty());
if (bindings_generator.generate_cs_api(glue_dir_path.path_join(API_SOLUTION_NAME)) != OK) {
ERR_PRINT(generate_all_glue_option + ": Failed to generate the C# API.");
}
}
static void cleanup_and_exit_godot() {
// Exit once done.
Main::cleanup(true);
::exit(0);
}
void BindingsGenerator::handle_cmdline_args(const List<String> &p_cmdline_args) {
String glue_dir_path;
const List<String>::Element *elem = p_cmdline_args.front();
while (elem) {
if (elem->get() == generate_all_glue_option) {
const List<String>::Element *path_elem = elem->next();
if (path_elem) {
glue_dir_path = path_elem->get();
elem = elem->next();
} else {
ERR_PRINT(generate_all_glue_option + ": No output directory specified (expected path to '{GODOT_ROOT}/modules/mono/glue').");
// Exit once done with invalid command line arguments.
cleanup_and_exit_godot();
}
break;
}
elem = elem->next();
}
if (glue_dir_path.length()) {
if (Engine::get_singleton()->is_editor_hint() ||
Engine::get_singleton()->is_project_manager_hint()) {
handle_cmdline_options(glue_dir_path);
} else {
// Running from a project folder, which doesn't make sense and crashes.
ERR_PRINT(generate_all_glue_option + ": Cannot generate Mono glue while running a game project. Change current directory or enable --editor.");
}
// Exit once done.
cleanup_and_exit_godot();
}
}
#endif
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