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godot/modules/gdscript/language_server/gdscript_extend_parser.cpp
William Edwards 188132884d Fix dumping of signal API parameters
2023-09-12 18:43:31 -07:00

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/**************************************************************************/
/* gdscript_extend_parser.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 "gdscript_extend_parser.h"
#include "../gdscript.h"
#include "../gdscript_analyzer.h"
#include "editor/editor_settings.h"
#include "gdscript_language_protocol.h"
#include "gdscript_workspace.h"
int get_indent_size() {
if (EditorSettings::get_singleton()) {
return EditorSettings::get_singleton()->get_setting("text_editor/behavior/indent/size");
} else {
return 4;
}
}
lsp::Position GodotPosition::to_lsp(const Vector<String> &p_lines) const {
lsp::Position res;
// Special case: `line = 0` -> root class (range covers everything).
if (this->line <= 0) {
return res;
}
// Special case: `line = p_lines.size() + 1` -> root class (range covers everything).
if (this->line >= p_lines.size() + 1) {
res.line = p_lines.size();
return res;
}
res.line = this->line - 1;
// Note: character outside of `pos_line.length()-1` is valid.
res.character = this->column - 1;
String pos_line = p_lines[res.line];
if (pos_line.contains("\t")) {
int tab_size = get_indent_size();
int in_col = 1;
int res_char = 0;
while (res_char < pos_line.size() && in_col < this->column) {
if (pos_line[res_char] == '\t') {
in_col += tab_size;
res_char++;
} else {
in_col++;
res_char++;
}
}
res.character = res_char;
}
return res;
}
GodotPosition GodotPosition::from_lsp(const lsp::Position p_pos, const Vector<String> &p_lines) {
GodotPosition res(p_pos.line + 1, p_pos.character + 1);
// Line outside of actual text is valid (-> pos/cursor at end of text).
if (res.line > p_lines.size()) {
return res;
}
String line = p_lines[p_pos.line];
int tabs_before_char = 0;
for (int i = 0; i < p_pos.character && i < line.length(); i++) {
if (line[i] == '\t') {
tabs_before_char++;
}
}
if (tabs_before_char > 0) {
int tab_size = get_indent_size();
res.column += tabs_before_char * (tab_size - 1);
}
return res;
}
lsp::Range GodotRange::to_lsp(const Vector<String> &p_lines) const {
lsp::Range res;
res.start = start.to_lsp(p_lines);
res.end = end.to_lsp(p_lines);
return res;
}
GodotRange GodotRange::from_lsp(const lsp::Range &p_range, const Vector<String> &p_lines) {
GodotPosition start = GodotPosition::from_lsp(p_range.start, p_lines);
GodotPosition end = GodotPosition::from_lsp(p_range.end, p_lines);
return GodotRange(start, end);
}
void ExtendGDScriptParser::update_diagnostics() {
diagnostics.clear();
const List<ParserError> &parser_errors = get_errors();
for (const ParserError &error : parser_errors) {
lsp::Diagnostic diagnostic;
diagnostic.severity = lsp::DiagnosticSeverity::Error;
diagnostic.message = error.message;
diagnostic.source = "gdscript";
diagnostic.code = -1;
lsp::Range range;
lsp::Position pos;
const PackedStringArray line_array = get_lines();
int line = CLAMP(LINE_NUMBER_TO_INDEX(error.line), 0, line_array.size() - 1);
const String &line_text = line_array[line];
pos.line = line;
pos.character = line_text.length() - line_text.strip_edges(true, false).length();
range.start = pos;
range.end = range.start;
range.end.character = line_text.strip_edges(false).length();
diagnostic.range = range;
diagnostics.push_back(diagnostic);
}
const List<GDScriptWarning> &parser_warnings = get_warnings();
for (const GDScriptWarning &warning : parser_warnings) {
lsp::Diagnostic diagnostic;
diagnostic.severity = lsp::DiagnosticSeverity::Warning;
diagnostic.message = "(" + warning.get_name() + "): " + warning.get_message();
diagnostic.source = "gdscript";
diagnostic.code = warning.code;
lsp::Range range;
lsp::Position pos;
int line = LINE_NUMBER_TO_INDEX(warning.start_line);
const String &line_text = get_lines()[line];
pos.line = line;
pos.character = line_text.length() - line_text.strip_edges(true, false).length();
range.start = pos;
range.end = pos;
range.end.character = line_text.strip_edges(false).length();
diagnostic.range = range;
diagnostics.push_back(diagnostic);
}
}
void ExtendGDScriptParser::update_symbols() {
members.clear();
if (const GDScriptParser::ClassNode *gdclass = dynamic_cast<const GDScriptParser::ClassNode *>(get_tree())) {
parse_class_symbol(gdclass, class_symbol);
for (int i = 0; i < class_symbol.children.size(); i++) {
const lsp::DocumentSymbol &symbol = class_symbol.children[i];
members.insert(symbol.name, &symbol);
// Cache level one inner classes.
if (symbol.kind == lsp::SymbolKind::Class) {
ClassMembers inner_class;
for (int j = 0; j < symbol.children.size(); j++) {
const lsp::DocumentSymbol &s = symbol.children[j];
inner_class.insert(s.name, &s);
}
inner_classes.insert(symbol.name, inner_class);
}
}
}
}
void ExtendGDScriptParser::update_document_links(const String &p_code) {
document_links.clear();
GDScriptTokenizer scr_tokenizer;
Ref<FileAccess> fs = FileAccess::create(FileAccess::ACCESS_RESOURCES);
scr_tokenizer.set_source_code(p_code);
while (true) {
GDScriptTokenizer::Token token = scr_tokenizer.scan();
if (token.type == GDScriptTokenizer::Token::TK_EOF) {
break;
} else if (token.type == GDScriptTokenizer::Token::LITERAL) {
const Variant &const_val = token.literal;
if (const_val.get_type() == Variant::STRING) {
String scr_path = const_val;
bool exists = fs->file_exists(scr_path);
if (!exists) {
scr_path = get_path().get_base_dir() + "/" + scr_path;
exists = fs->file_exists(scr_path);
}
if (exists) {
String value = const_val;
lsp::DocumentLink link;
link.target = GDScriptLanguageProtocol::get_singleton()->get_workspace()->get_file_uri(scr_path);
link.range = GodotRange(GodotPosition(token.start_line, token.start_column), GodotPosition(token.end_line, token.end_column)).to_lsp(this->lines);
document_links.push_back(link);
}
}
}
}
}
lsp::Range ExtendGDScriptParser::range_of_node(const GDScriptParser::Node *p_node) const {
GodotPosition start(p_node->start_line, p_node->start_column);
GodotPosition end(p_node->end_line, p_node->end_column);
return GodotRange(start, end).to_lsp(this->lines);
}
void ExtendGDScriptParser::parse_class_symbol(const GDScriptParser::ClassNode *p_class, lsp::DocumentSymbol &r_symbol) {
const String uri = get_uri();
r_symbol.uri = uri;
r_symbol.script_path = path;
r_symbol.children.clear();
r_symbol.name = p_class->identifier != nullptr ? String(p_class->identifier->name) : String();
if (r_symbol.name.is_empty()) {
r_symbol.name = path.get_file();
}
r_symbol.kind = lsp::SymbolKind::Class;
r_symbol.deprecated = false;
r_symbol.range = range_of_node(p_class);
r_symbol.range.start.line = MAX(r_symbol.range.start.line, 0);
if (p_class->identifier) {
r_symbol.selectionRange = range_of_node(p_class->identifier);
}
r_symbol.detail = "class " + r_symbol.name;
{
String doc = p_class->doc_data.description;
if (!p_class->doc_data.description.is_empty()) {
doc += "\n\n" + p_class->doc_data.description;
}
if (!p_class->doc_data.tutorials.is_empty()) {
doc += "\n";
for (const Pair<String, String> &tutorial : p_class->doc_data.tutorials) {
if (tutorial.first.is_empty()) {
doc += vformat("\n@tutorial: %s", tutorial.second);
} else {
doc += vformat("\n@tutorial(%s): %s", tutorial.first, tutorial.second);
}
}
}
r_symbol.documentation = doc;
}
for (int i = 0; i < p_class->members.size(); i++) {
const ClassNode::Member &m = p_class->members[i];
switch (m.type) {
case ClassNode::Member::VARIABLE: {
lsp::DocumentSymbol symbol;
symbol.name = m.variable->identifier->name;
symbol.kind = m.variable->property == VariableNode::PROP_NONE ? lsp::SymbolKind::Variable : lsp::SymbolKind::Property;
symbol.deprecated = false;
symbol.range = range_of_node(m.variable);
symbol.selectionRange = range_of_node(m.variable->identifier);
if (m.variable->exported) {
symbol.detail += "@export ";
}
symbol.detail += "var " + m.variable->identifier->name;
if (m.get_datatype().is_hard_type()) {
symbol.detail += ": " + m.get_datatype().to_string();
}
if (m.variable->initializer != nullptr && m.variable->initializer->is_constant) {
symbol.detail += " = " + m.variable->initializer->reduced_value.to_json_string();
}
symbol.documentation = m.variable->doc_data.description;
symbol.uri = uri;
symbol.script_path = path;
if (m.variable->initializer && m.variable->initializer->type == GDScriptParser::Node::LAMBDA) {
GDScriptParser::LambdaNode *lambda_node = (GDScriptParser::LambdaNode *)m.variable->initializer;
lsp::DocumentSymbol lambda;
parse_function_symbol(lambda_node->function, lambda);
// Merge lambda into current variable.
symbol.children.append_array(lambda.children);
}
if (m.variable->getter && m.variable->getter->type == GDScriptParser::Node::FUNCTION) {
lsp::DocumentSymbol get_symbol;
parse_function_symbol(m.variable->getter, get_symbol);
get_symbol.local = true;
symbol.children.push_back(get_symbol);
}
if (m.variable->setter && m.variable->setter->type == GDScriptParser::Node::FUNCTION) {
lsp::DocumentSymbol set_symbol;
parse_function_symbol(m.variable->setter, set_symbol);
set_symbol.local = true;
symbol.children.push_back(set_symbol);
}
r_symbol.children.push_back(symbol);
} break;
case ClassNode::Member::CONSTANT: {
lsp::DocumentSymbol symbol;
symbol.name = m.constant->identifier->name;
symbol.kind = lsp::SymbolKind::Constant;
symbol.deprecated = false;
symbol.range = range_of_node(m.constant);
symbol.selectionRange = range_of_node(m.constant->identifier);
symbol.documentation = m.constant->doc_data.description;
symbol.uri = uri;
symbol.script_path = path;
symbol.detail = "const " + symbol.name;
if (m.constant->get_datatype().is_hard_type()) {
symbol.detail += ": " + m.constant->get_datatype().to_string();
}
const Variant &default_value = m.constant->initializer->reduced_value;
String value_text;
if (default_value.get_type() == Variant::OBJECT) {
Ref<Resource> res = default_value;
if (res.is_valid() && !res->get_path().is_empty()) {
value_text = "preload(\"" + res->get_path() + "\")";
if (symbol.documentation.is_empty()) {
if (HashMap<String, ExtendGDScriptParser *>::Iterator S = GDScriptLanguageProtocol::get_singleton()->get_workspace()->scripts.find(res->get_path())) {
symbol.documentation = S->value->class_symbol.documentation;
}
}
} else {
value_text = default_value.to_json_string();
}
} else {
value_text = default_value.to_json_string();
}
if (!value_text.is_empty()) {
symbol.detail += " = " + value_text;
}
r_symbol.children.push_back(symbol);
} break;
case ClassNode::Member::SIGNAL: {
lsp::DocumentSymbol symbol;
symbol.name = m.signal->identifier->name;
symbol.kind = lsp::SymbolKind::Event;
symbol.deprecated = false;
symbol.range = range_of_node(m.signal);
symbol.selectionRange = range_of_node(m.signal->identifier);
symbol.documentation = m.signal->doc_data.description;
symbol.uri = uri;
symbol.script_path = path;
symbol.detail = "signal " + String(m.signal->identifier->name) + "(";
for (int j = 0; j < m.signal->parameters.size(); j++) {
if (j > 0) {
symbol.detail += ", ";
}
symbol.detail += m.signal->parameters[j]->identifier->name;
}
symbol.detail += ")";
for (GDScriptParser::ParameterNode *param : m.signal->parameters) {
lsp::DocumentSymbol param_symbol;
param_symbol.name = param->identifier->name;
param_symbol.kind = lsp::SymbolKind::Variable;
param_symbol.deprecated = false;
param_symbol.local = true;
param_symbol.range = range_of_node(param);
param_symbol.selectionRange = range_of_node(param->identifier);
param_symbol.uri = uri;
param_symbol.script_path = path;
param_symbol.detail = "var " + param_symbol.name;
if (param->get_datatype().is_hard_type()) {
param_symbol.detail += ": " + param->get_datatype().to_string();
}
symbol.children.push_back(param_symbol);
}
r_symbol.children.push_back(symbol);
} break;
case ClassNode::Member::ENUM_VALUE: {
lsp::DocumentSymbol symbol;
symbol.name = m.enum_value.identifier->name;
symbol.kind = lsp::SymbolKind::EnumMember;
symbol.deprecated = false;
symbol.range.start = GodotPosition(m.enum_value.line, m.enum_value.leftmost_column).to_lsp(this->lines);
symbol.range.end = GodotPosition(m.enum_value.line, m.enum_value.rightmost_column).to_lsp(this->lines);
symbol.selectionRange = range_of_node(m.enum_value.identifier);
symbol.documentation = m.enum_value.doc_data.description;
symbol.uri = uri;
symbol.script_path = path;
symbol.detail = symbol.name + " = " + itos(m.enum_value.value);
r_symbol.children.push_back(symbol);
} break;
case ClassNode::Member::ENUM: {
lsp::DocumentSymbol symbol;
symbol.name = m.m_enum->identifier->name;
symbol.kind = lsp::SymbolKind::Enum;
symbol.range = range_of_node(m.m_enum);
symbol.selectionRange = range_of_node(m.m_enum->identifier);
symbol.documentation = m.m_enum->doc_data.description;
symbol.uri = uri;
symbol.script_path = path;
symbol.detail = "enum " + String(m.m_enum->identifier->name) + "{";
for (int j = 0; j < m.m_enum->values.size(); j++) {
if (j > 0) {
symbol.detail += ", ";
}
symbol.detail += String(m.m_enum->values[j].identifier->name) + " = " + itos(m.m_enum->values[j].value);
}
symbol.detail += "}";
for (GDScriptParser::EnumNode::Value value : m.m_enum->values) {
lsp::DocumentSymbol child;
child.name = value.identifier->name;
child.kind = lsp::SymbolKind::EnumMember;
child.deprecated = false;
child.range.start = GodotPosition(value.line, value.leftmost_column).to_lsp(this->lines);
child.range.end = GodotPosition(value.line, value.rightmost_column).to_lsp(this->lines);
child.selectionRange = range_of_node(value.identifier);
child.documentation = value.doc_data.description;
child.uri = uri;
child.script_path = path;
child.detail = child.name + " = " + itos(value.value);
symbol.children.push_back(child);
}
r_symbol.children.push_back(symbol);
} break;
case ClassNode::Member::FUNCTION: {
lsp::DocumentSymbol symbol;
parse_function_symbol(m.function, symbol);
r_symbol.children.push_back(symbol);
} break;
case ClassNode::Member::CLASS: {
lsp::DocumentSymbol symbol;
parse_class_symbol(m.m_class, symbol);
r_symbol.children.push_back(symbol);
} break;
case ClassNode::Member::GROUP:
break; // No-op, but silences warnings.
case ClassNode::Member::UNDEFINED:
break; // Unreachable.
}
}
}
void ExtendGDScriptParser::parse_function_symbol(const GDScriptParser::FunctionNode *p_func, lsp::DocumentSymbol &r_symbol) {
const String uri = get_uri();
bool is_named = p_func->identifier != nullptr;
r_symbol.name = is_named ? p_func->identifier->name : "";
r_symbol.kind = (p_func->is_static || p_func->source_lambda != nullptr) ? lsp::SymbolKind::Function : lsp::SymbolKind::Method;
r_symbol.detail = "func";
if (is_named) {
r_symbol.detail += " " + String(p_func->identifier->name);
}
r_symbol.detail += "(";
r_symbol.deprecated = false;
r_symbol.range = range_of_node(p_func);
if (is_named) {
r_symbol.selectionRange = range_of_node(p_func->identifier);
} else {
r_symbol.selectionRange.start = r_symbol.selectionRange.end = r_symbol.range.start;
}
r_symbol.documentation = p_func->doc_data.description;
r_symbol.uri = uri;
r_symbol.script_path = path;
String parameters;
for (int i = 0; i < p_func->parameters.size(); i++) {
const ParameterNode *parameter = p_func->parameters[i];
if (i > 0) {
parameters += ", ";
}
parameters += String(parameter->identifier->name);
if (parameter->get_datatype().is_hard_type()) {
parameters += ": " + parameter->get_datatype().to_string();
}
if (parameter->initializer != nullptr) {
parameters += " = " + parameter->initializer->reduced_value.to_json_string();
}
}
r_symbol.detail += parameters + ")";
if (p_func->get_datatype().is_hard_type()) {
r_symbol.detail += " -> " + p_func->get_datatype().to_string();
}
List<GDScriptParser::SuiteNode *> function_nodes;
List<GDScriptParser::Node *> node_stack;
node_stack.push_back(p_func->body);
while (!node_stack.is_empty()) {
GDScriptParser::Node *node = node_stack[0];
node_stack.pop_front();
switch (node->type) {
case GDScriptParser::TypeNode::IF: {
GDScriptParser::IfNode *if_node = (GDScriptParser::IfNode *)node;
node_stack.push_back(if_node->true_block);
if (if_node->false_block) {
node_stack.push_back(if_node->false_block);
}
} break;
case GDScriptParser::TypeNode::FOR: {
GDScriptParser::ForNode *for_node = (GDScriptParser::ForNode *)node;
node_stack.push_back(for_node->loop);
} break;
case GDScriptParser::TypeNode::WHILE: {
GDScriptParser::WhileNode *while_node = (GDScriptParser::WhileNode *)node;
node_stack.push_back(while_node->loop);
} break;
case GDScriptParser::TypeNode::MATCH: {
GDScriptParser::MatchNode *match_node = (GDScriptParser::MatchNode *)node;
for (GDScriptParser::MatchBranchNode *branch_node : match_node->branches) {
node_stack.push_back(branch_node);
}
} break;
case GDScriptParser::TypeNode::MATCH_BRANCH: {
GDScriptParser::MatchBranchNode *match_node = (GDScriptParser::MatchBranchNode *)node;
node_stack.push_back(match_node->block);
} break;
case GDScriptParser::TypeNode::SUITE: {
GDScriptParser::SuiteNode *suite_node = (GDScriptParser::SuiteNode *)node;
function_nodes.push_back(suite_node);
for (int i = 0; i < suite_node->statements.size(); ++i) {
node_stack.push_back(suite_node->statements[i]);
}
} break;
default:
continue;
}
}
for (List<GDScriptParser::SuiteNode *>::Element *N = function_nodes.front(); N; N = N->next()) {
const GDScriptParser::SuiteNode *suite_node = N->get();
for (int i = 0; i < suite_node->locals.size(); i++) {
const SuiteNode::Local &local = suite_node->locals[i];
lsp::DocumentSymbol symbol;
symbol.name = local.name;
symbol.kind = local.type == SuiteNode::Local::CONSTANT ? lsp::SymbolKind::Constant : lsp::SymbolKind::Variable;
switch (local.type) {
case SuiteNode::Local::CONSTANT:
symbol.range = range_of_node(local.constant);
symbol.selectionRange = range_of_node(local.constant->identifier);
break;
case SuiteNode::Local::VARIABLE:
symbol.range = range_of_node(local.variable);
symbol.selectionRange = range_of_node(local.variable->identifier);
if (local.variable->initializer && local.variable->initializer->type == GDScriptParser::Node::LAMBDA) {
GDScriptParser::LambdaNode *lambda_node = (GDScriptParser::LambdaNode *)local.variable->initializer;
lsp::DocumentSymbol lambda;
parse_function_symbol(lambda_node->function, lambda);
// Merge lambda into current variable.
// -> Only interested in new variables, not lambda itself.
symbol.children.append_array(lambda.children);
}
break;
case SuiteNode::Local::PARAMETER:
symbol.range = range_of_node(local.parameter);
symbol.selectionRange = range_of_node(local.parameter->identifier);
break;
case SuiteNode::Local::FOR_VARIABLE:
case SuiteNode::Local::PATTERN_BIND:
symbol.range = range_of_node(local.bind);
symbol.selectionRange = range_of_node(local.bind);
break;
default:
// Fallback.
symbol.range.start = GodotPosition(local.start_line, local.start_column).to_lsp(get_lines());
symbol.range.end = GodotPosition(local.end_line, local.end_column).to_lsp(get_lines());
symbol.selectionRange = symbol.range;
break;
}
symbol.local = true;
symbol.uri = uri;
symbol.script_path = path;
symbol.detail = local.type == SuiteNode::Local::CONSTANT ? "const " : "var ";
symbol.detail += symbol.name;
if (local.get_datatype().is_hard_type()) {
symbol.detail += ": " + local.get_datatype().to_string();
}
switch (local.type) {
case SuiteNode::Local::CONSTANT:
symbol.documentation = local.constant->doc_data.description;
break;
case SuiteNode::Local::VARIABLE:
symbol.documentation = local.variable->doc_data.description;
break;
default:
break;
}
r_symbol.children.push_back(symbol);
}
}
}
String ExtendGDScriptParser::get_text_for_completion(const lsp::Position &p_cursor) const {
String longthing;
int len = lines.size();
for (int i = 0; i < len; i++) {
if (i == p_cursor.line) {
longthing += lines[i].substr(0, p_cursor.character);
longthing += String::chr(0xFFFF); // Not unicode, represents the cursor.
longthing += lines[i].substr(p_cursor.character, lines[i].size());
} else {
longthing += lines[i];
}
if (i != len - 1) {
longthing += "\n";
}
}
return longthing;
}
String ExtendGDScriptParser::get_text_for_lookup_symbol(const lsp::Position &p_cursor, const String &p_symbol, bool p_func_required) const {
String longthing;
int len = lines.size();
for (int i = 0; i < len; i++) {
if (i == p_cursor.line) {
String line = lines[i];
String first_part = line.substr(0, p_cursor.character);
String last_part = line.substr(p_cursor.character, lines[i].length());
if (!p_symbol.is_empty()) {
String left_cursor_text;
for (int c = p_cursor.character - 1; c >= 0; c--) {
left_cursor_text = line.substr(c, p_cursor.character - c);
if (p_symbol.begins_with(left_cursor_text)) {
first_part = line.substr(0, c);
first_part += p_symbol;
break;
}
}
}
longthing += first_part;
longthing += String::chr(0xFFFF); // Not unicode, represents the cursor.
if (p_func_required) {
longthing += "("; // Tell the parser this is a function call.
}
longthing += last_part;
} else {
longthing += lines[i];
}
if (i != len - 1) {
longthing += "\n";
}
}
return longthing;
}
String ExtendGDScriptParser::get_identifier_under_position(const lsp::Position &p_position, lsp::Range &r_range) const {
ERR_FAIL_INDEX_V(p_position.line, lines.size(), "");
String line = lines[p_position.line];
if (line.is_empty()) {
return "";
}
ERR_FAIL_INDEX_V(p_position.character, line.size(), "");
// `p_position` cursor is BETWEEN chars, not ON chars.
// ->
// ```gdscript
// var member| := some_func|(some_variable|)
// ^ ^ ^
// | | | cursor on `some_variable, position on `)`
// | |
// | | cursor on `some_func`, pos on `(`
// |
// | cursor on `member`, pos on ` ` (space)
// ```
// -> Move position to previous character if:
// * Position not on valid identifier char.
// * Prev position is valid identifier char.
lsp::Position pos = p_position;
if (
pos.character >= line.length() // Cursor at end of line.
|| (!is_ascii_identifier_char(line[pos.character]) // Not on valid identifier char.
&& (pos.character > 0 // Not line start -> there is a prev char.
&& is_ascii_identifier_char(line[pos.character - 1]) // Prev is valid identifier char.
))) {
pos.character--;
}
int start_pos = pos.character;
for (int c = pos.character; c >= 0; c--) {
start_pos = c;
char32_t ch = line[c];
bool valid_char = is_ascii_identifier_char(ch);
if (!valid_char) {
break;
}
}
int end_pos = pos.character;
for (int c = pos.character; c < line.length(); c++) {
char32_t ch = line[c];
bool valid_char = is_ascii_identifier_char(ch);
if (!valid_char) {
break;
}
end_pos = c;
}
if (start_pos < end_pos) {
r_range.start.line = r_range.end.line = pos.line;
r_range.start.character = start_pos + 1;
r_range.end.character = end_pos + 1;
return line.substr(start_pos + 1, end_pos - start_pos);
}
return "";
}
String ExtendGDScriptParser::get_uri() const {
return GDScriptLanguageProtocol::get_singleton()->get_workspace()->get_file_uri(path);
}
const lsp::DocumentSymbol *ExtendGDScriptParser::search_symbol_defined_at_line(int p_line, const lsp::DocumentSymbol &p_parent, const String &p_symbol_name) const {
const lsp::DocumentSymbol *ret = nullptr;
if (p_line < p_parent.range.start.line) {
return ret;
} else if (p_parent.range.start.line == p_line && (p_symbol_name.is_empty() || p_parent.name == p_symbol_name)) {
return &p_parent;
} else {
for (int i = 0; i < p_parent.children.size(); i++) {
ret = search_symbol_defined_at_line(p_line, p_parent.children[i], p_symbol_name);
if (ret) {
break;
}
}
}
return ret;
}
Error ExtendGDScriptParser::get_left_function_call(const lsp::Position &p_position, lsp::Position &r_func_pos, int &r_arg_index) const {
ERR_FAIL_INDEX_V(p_position.line, lines.size(), ERR_INVALID_PARAMETER);
int bracket_stack = 0;
int index = 0;
bool found = false;
for (int l = p_position.line; l >= 0; --l) {
String line = lines[l];
int c = line.length() - 1;
if (l == p_position.line) {
c = MIN(c, p_position.character - 1);
}
while (c >= 0) {
const char32_t &character = line[c];
if (character == ')') {
++bracket_stack;
} else if (character == '(') {
--bracket_stack;
if (bracket_stack < 0) {
found = true;
}
}
if (bracket_stack <= 0 && character == ',') {
++index;
}
--c;
if (found) {
r_func_pos.character = c;
break;
}
}
if (found) {
r_func_pos.line = l;
r_arg_index = index;
return OK;
}
}
return ERR_METHOD_NOT_FOUND;
}
const lsp::DocumentSymbol *ExtendGDScriptParser::get_symbol_defined_at_line(int p_line, const String &p_symbol_name) const {
if (p_line <= 0) {
return &class_symbol;
}
return search_symbol_defined_at_line(p_line, class_symbol, p_symbol_name);
}
const lsp::DocumentSymbol *ExtendGDScriptParser::get_member_symbol(const String &p_name, const String &p_subclass) const {
if (p_subclass.is_empty()) {
const lsp::DocumentSymbol *const *ptr = members.getptr(p_name);
if (ptr) {
return *ptr;
}
} else {
if (const ClassMembers *_class = inner_classes.getptr(p_subclass)) {
const lsp::DocumentSymbol *const *ptr = _class->getptr(p_name);
if (ptr) {
return *ptr;
}
}
}
return nullptr;
}
const List<lsp::DocumentLink> &ExtendGDScriptParser::get_document_links() const {
return document_links;
}
const Array &ExtendGDScriptParser::get_member_completions() {
if (member_completions.is_empty()) {
for (const KeyValue<String, const lsp::DocumentSymbol *> &E : members) {
const lsp::DocumentSymbol *symbol = E.value;
lsp::CompletionItem item = symbol->make_completion_item();
item.data = JOIN_SYMBOLS(path, E.key);
member_completions.push_back(item.to_json());
}
for (const KeyValue<String, ClassMembers> &E : inner_classes) {
const ClassMembers *inner_class = &E.value;
for (const KeyValue<String, const lsp::DocumentSymbol *> &F : *inner_class) {
const lsp::DocumentSymbol *symbol = F.value;
lsp::CompletionItem item = symbol->make_completion_item();
item.data = JOIN_SYMBOLS(path, JOIN_SYMBOLS(E.key, F.key));
member_completions.push_back(item.to_json());
}
}
}
return member_completions;
}
Dictionary ExtendGDScriptParser::dump_function_api(const GDScriptParser::FunctionNode *p_func) const {
Dictionary func;
ERR_FAIL_NULL_V(p_func, func);
func["name"] = p_func->identifier->name;
func["return_type"] = p_func->get_datatype().to_string();
func["rpc_config"] = p_func->rpc_config;
Array parameters;
for (int i = 0; i < p_func->parameters.size(); i++) {
Dictionary arg;
arg["name"] = p_func->parameters[i]->identifier->name;
arg["type"] = p_func->parameters[i]->get_datatype().to_string();
if (p_func->parameters[i]->initializer != nullptr) {
arg["default_value"] = p_func->parameters[i]->initializer->reduced_value;
}
parameters.push_back(arg);
}
if (const lsp::DocumentSymbol *symbol = get_symbol_defined_at_line(LINE_NUMBER_TO_INDEX(p_func->start_line))) {
func["signature"] = symbol->detail;
func["description"] = symbol->documentation;
}
func["arguments"] = parameters;
return func;
}
Dictionary ExtendGDScriptParser::dump_class_api(const GDScriptParser::ClassNode *p_class) const {
Dictionary class_api;
ERR_FAIL_NULL_V(p_class, class_api);
class_api["name"] = p_class->identifier != nullptr ? String(p_class->identifier->name) : String();
class_api["path"] = path;
Array extends_class;
for (int i = 0; i < p_class->extends.size(); i++) {
extends_class.append(String(p_class->extends[i]->name));
}
class_api["extends_class"] = extends_class;
class_api["extends_file"] = String(p_class->extends_path);
class_api["icon"] = String(p_class->icon_path);
if (const lsp::DocumentSymbol *symbol = get_symbol_defined_at_line(LINE_NUMBER_TO_INDEX(p_class->start_line))) {
class_api["signature"] = symbol->detail;
class_api["description"] = symbol->documentation;
}
Array nested_classes;
Array constants;
Array class_members;
Array signals;
Array methods;
Array static_functions;
for (int i = 0; i < p_class->members.size(); i++) {
const ClassNode::Member &m = p_class->members[i];
switch (m.type) {
case ClassNode::Member::CLASS:
nested_classes.push_back(dump_class_api(m.m_class));
break;
case ClassNode::Member::CONSTANT: {
Dictionary api;
api["name"] = m.constant->identifier->name;
api["value"] = m.constant->initializer->reduced_value;
api["data_type"] = m.constant->get_datatype().to_string();
if (const lsp::DocumentSymbol *symbol = get_symbol_defined_at_line(LINE_NUMBER_TO_INDEX(m.constant->start_line))) {
api["signature"] = symbol->detail;
api["description"] = symbol->documentation;
}
constants.push_back(api);
} break;
case ClassNode::Member::ENUM_VALUE: {
Dictionary api;
api["name"] = m.enum_value.identifier->name;
api["value"] = m.enum_value.value;
api["data_type"] = m.get_datatype().to_string();
if (const lsp::DocumentSymbol *symbol = get_symbol_defined_at_line(LINE_NUMBER_TO_INDEX(m.enum_value.line))) {
api["signature"] = symbol->detail;
api["description"] = symbol->documentation;
}
constants.push_back(api);
} break;
case ClassNode::Member::ENUM: {
Dictionary enum_dict;
for (int j = 0; j < m.m_enum->values.size(); j++) {
enum_dict[m.m_enum->values[j].identifier->name] = m.m_enum->values[j].value;
}
Dictionary api;
api["name"] = m.m_enum->identifier->name;
api["value"] = enum_dict;
api["data_type"] = m.get_datatype().to_string();
if (const lsp::DocumentSymbol *symbol = get_symbol_defined_at_line(LINE_NUMBER_TO_INDEX(m.m_enum->start_line))) {
api["signature"] = symbol->detail;
api["description"] = symbol->documentation;
}
constants.push_back(api);
} break;
case ClassNode::Member::VARIABLE: {
Dictionary api;
api["name"] = m.variable->identifier->name;
api["data_type"] = m.variable->get_datatype().to_string();
api["default_value"] = m.variable->initializer != nullptr ? m.variable->initializer->reduced_value : Variant();
api["setter"] = m.variable->setter ? ("@" + String(m.variable->identifier->name) + "_setter") : (m.variable->setter_pointer != nullptr ? String(m.variable->setter_pointer->name) : String());
api["getter"] = m.variable->getter ? ("@" + String(m.variable->identifier->name) + "_getter") : (m.variable->getter_pointer != nullptr ? String(m.variable->getter_pointer->name) : String());
api["export"] = m.variable->exported;
if (const lsp::DocumentSymbol *symbol = get_symbol_defined_at_line(LINE_NUMBER_TO_INDEX(m.variable->start_line))) {
api["signature"] = symbol->detail;
api["description"] = symbol->documentation;
}
class_members.push_back(api);
} break;
case ClassNode::Member::SIGNAL: {
Dictionary api;
api["name"] = m.signal->identifier->name;
Array pars;
for (int j = 0; j < m.signal->parameters.size(); j++) {
pars.append(String(m.signal->parameters[j]->identifier->name));
}
api["arguments"] = pars;
if (const lsp::DocumentSymbol *symbol = get_symbol_defined_at_line(LINE_NUMBER_TO_INDEX(m.signal->start_line))) {
api["signature"] = symbol->detail;
api["description"] = symbol->documentation;
}
signals.push_back(api);
} break;
case ClassNode::Member::FUNCTION: {
if (m.function->is_static) {
static_functions.append(dump_function_api(m.function));
} else {
methods.append(dump_function_api(m.function));
}
} break;
case ClassNode::Member::GROUP:
break; // No-op, but silences warnings.
case ClassNode::Member::UNDEFINED:
break; // Unreachable.
}
}
class_api["sub_classes"] = nested_classes;
class_api["constants"] = constants;
class_api["members"] = class_members;
class_api["signals"] = signals;
class_api["methods"] = methods;
class_api["static_functions"] = static_functions;
return class_api;
}
Dictionary ExtendGDScriptParser::generate_api() const {
Dictionary api;
if (const GDScriptParser::ClassNode *gdclass = dynamic_cast<const GDScriptParser::ClassNode *>(get_tree())) {
api = dump_class_api(gdclass);
}
return api;
}
Error ExtendGDScriptParser::parse(const String &p_code, const String &p_path) {
path = p_path;
lines = p_code.split("\n");
Error err = GDScriptParser::parse(p_code, p_path, false);
GDScriptAnalyzer analyzer(this);
if (err == OK) {
err = analyzer.analyze();
}
update_diagnostics();
update_symbols();
update_document_links(p_code);
return err;
}
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