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GDScript compiler: check if subclass exists before comparison

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Otherwise these checks might trigger the insertion of an empty value,
leading to crashes.
This commit is contained in:
George Marques
2019-01-16 20:24:17 -02:00
parent ced9fcafd4
commit 30f02dd421
1 changed files with 2 additions and 2 deletions
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4
modules/gdscript/gdscript_compiler.cpp
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@@ -486,7 +486,7 @@ int GDScriptCompiler::_parse_expression(CodeGen &codegen, const GDScriptParser::
script = codegen.script;
} else {
StringName name = cn->cast_type.class_type->name;
if (class_map[name] == codegen.script->subclasses[name]) {
if (codegen.script->subclasses.has(name) && class_map[name] == codegen.script->subclasses[name]) {
idx = codegen.get_name_map_pos(name);
idx |= GDScriptFunction::ADDR_TYPE_CLASS_CONSTANT << GDScriptFunction::ADDR_BITS;
} else {
@@ -1183,7 +1183,7 @@ int GDScriptCompiler::_parse_expression(CodeGen &codegen, const GDScriptParser::
script = codegen.script;
} else {
StringName name = assign_type.class_type->name;
if (class_map[name] == codegen.script->subclasses[name]) {
if (codegen.script->subclasses.has(name) && class_map[name] == codegen.script->subclasses[name]) {
idx = codegen.get_name_map_pos(name);
idx |= GDScriptFunction::ADDR_TYPE_CLASS_CONSTANT << GDScriptFunction::ADDR_BITS;
} else {