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Fix ability to overload "script" variable

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This commit is contained in:
ocean (they/them) 2022-11-08 17:41:50 -05:00
parent 2846ea1ffa
commit 13be0ab733
6 changed files with 32 additions and 5 deletions
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16
modules/gdscript/gdscript_analyzer.cpp
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@ -32,6 +32,7 @@
#include "core/config/engine.h"
#include "core/config/project_settings.h"
#include "core/core_string_names.h"
#include "core/io/file_access.h"
#include "core/io/resource_loader.h"
#include "core/object/class_db.h"
@ -132,7 +133,7 @@ static GDScriptParser::DataType make_builtin_meta_type(Variant::Type p_type) {
return type;
}
bool GDScriptAnalyzer::has_member_name_conflict_in_script_class(const StringName &p_member_name, const GDScriptParser::ClassNode *p_class) {
bool GDScriptAnalyzer::has_member_name_conflict_in_script_class(const StringName &p_member_name, const GDScriptParser::ClassNode *p_class, const GDScriptParser::Node *p_member) {
if (p_class->members_indices.has(p_member_name)) {
int index = p_class->members_indices[p_member_name];
const GDScriptParser::ClassNode::Member *member = &p_class->members[index];
@ -145,6 +146,9 @@ bool GDScriptAnalyzer::has_member_name_conflict_in_script_class(const StringName
member->type == GDScriptParser::ClassNode::Member::SIGNAL) {
return true;
}
if (p_member->type != GDScriptParser::Node::FUNCTION && member->type == GDScriptParser::ClassNode::Member::FUNCTION) {
return true;
}
}
return false;
@ -160,6 +164,9 @@ bool GDScriptAnalyzer::has_member_name_conflict_in_native_type(const StringName
if (ClassDB::has_integer_constant(p_native_type_string, p_member_name)) {
return true;
}
if (p_member_name == CoreStringNames::get_singleton()->_script) {
return true;
}
return false;
}
@ -187,14 +194,15 @@ Error GDScriptAnalyzer::check_class_member_name_conflict(const GDScriptParser::C
const GDScriptParser::DataType *current_data_type = &p_class_node->base_type;
while (current_data_type && current_data_type->kind == GDScriptParser::DataType::Kind::CLASS) {
GDScriptParser::ClassNode *current_class_node = current_data_type->class_type;
if (has_member_name_conflict_in_script_class(p_member_name, current_class_node)) {
push_error(vformat(R"(The member "%s" already exists in a parent class.)", p_member_name),
if (has_member_name_conflict_in_script_class(p_member_name, current_class_node, p_member_node)) {
push_error(vformat(R"(The member "%s" already exists in parent class %s.)", p_member_name, current_class_node->identifier->name),
p_member_node);
return ERR_PARSE_ERROR;
}
current_data_type = &current_class_node->base_type;
}
// No need for native class recursion because Node exposes all Object's properties.
if (current_data_type && current_data_type->kind == GDScriptParser::DataType::Kind::NATIVE) {
if (current_data_type->native_type != StringName()) {
return check_native_member_name_conflict(
@ -2912,7 +2920,7 @@ void GDScriptAnalyzer::reduce_identifier_from_base(GDScriptParser::IdentifierNod
base_class = base_class->base_type.class_type;
}
// Check native members.
// Check native members. No need for native class recursion because Node exposes all Object's properties.
const StringName &native = base.native_type;
if (class_exists(native)) {

2
modules/gdscript/gdscript_analyzer.h
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@ -45,7 +45,7 @@ class GDScriptAnalyzer {
List<GDScriptParser::LambdaNode *> lambda_stack;
// Tests for detecting invalid overloading of script members
static _FORCE_INLINE_ bool has_member_name_conflict_in_script_class(const StringName &p_name, const GDScriptParser::ClassNode *p_current_class_node);
static _FORCE_INLINE_ bool has_member_name_conflict_in_script_class(const StringName &p_name, const GDScriptParser::ClassNode *p_current_class_node, const GDScriptParser::Node *p_member);
static _FORCE_INLINE_ bool has_member_name_conflict_in_native_type(const StringName &p_name, const StringName &p_native_type_string);
Error check_native_member_name_conflict(const StringName &p_member_name, const GDScriptParser::Node *p_member_node, const StringName &p_native_type_string);
Error check_class_member_name_conflict(const GDScriptParser::ClassNode *p_class_node, const StringName &p_member_name, const GDScriptParser::Node *p_member_node);

6
modules/gdscript/tests/scripts/analyzer/errors/overload_script_variable.gd Normal file
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@ -0,0 +1,6 @@
extends Node
var script: int
func test():
pass

2
modules/gdscript/tests/scripts/analyzer/errors/overload_script_variable.out Normal file
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@ -0,0 +1,2 @@
GDTEST_ANALYZER_ERROR
Member "script" redefined (original in native class 'Node')

9
modules/gdscript/tests/scripts/analyzer/errors/variable_overloads_superclass_function.gd Normal file
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@ -0,0 +1,9 @@
func test():
pass
class A:
func overload_me():
pass
class B extends A:
var overload_me

2
modules/gdscript/tests/scripts/analyzer/errors/variable_overloads_superclass_function.out Normal file
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@ -0,0 +1,2 @@
GDTEST_ANALYZER_ERROR
The member "overload_me" already exists in parent class A.