diff options
| author | Rémi Verschelde <remi@verschelde.fr> | 2021-01-11 14:00:54 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-01-11 14:00:54 +0100 |
| commit | 51992250e67d0fea1087ee3d9973f0b825349884 (patch) | |
| tree | 0f647d466ab5b9bf70ec3b012b020c6cfb784dbe | |
| parent | 6d48943768690c40da34d9b091baa87c1b9811fb (diff) | |
| parent | f388177aede5724af8fb7b244c288697421e10d1 (diff) | |
Merge pull request #43176 from mateosss/crash-uninit-const
Fix crash by adding nullcheck for uninitialized constants
| -rw-r--r-- | modules/gdscript/gdscript_analyzer.cpp | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/modules/gdscript/gdscript_analyzer.cpp b/modules/gdscript/gdscript_analyzer.cpp index 69c9555a67..a6138cc564 100644 --- a/modules/gdscript/gdscript_analyzer.cpp +++ b/modules/gdscript/gdscript_analyzer.cpp @@ -1163,24 +1163,26 @@ void GDScriptAnalyzer::resolve_variable(GDScriptParser::VariableNode *p_variable void GDScriptAnalyzer::resolve_constant(GDScriptParser::ConstantNode *p_constant) { GDScriptParser::DataType type; - reduce_expression(p_constant->initializer); - if (p_constant->initializer->type == GDScriptParser::Node::ARRAY) { - const_fold_array(static_cast<GDScriptParser::ArrayNode *>(p_constant->initializer)); - } else if (p_constant->initializer->type == GDScriptParser::Node::DICTIONARY) { - const_fold_dictionary(static_cast<GDScriptParser::DictionaryNode *>(p_constant->initializer)); - } + if (p_constant->initializer != nullptr) { + reduce_expression(p_constant->initializer); + if (p_constant->initializer->type == GDScriptParser::Node::ARRAY) { + const_fold_array(static_cast<GDScriptParser::ArrayNode *>(p_constant->initializer)); + } else if (p_constant->initializer->type == GDScriptParser::Node::DICTIONARY) { + const_fold_dictionary(static_cast<GDScriptParser::DictionaryNode *>(p_constant->initializer)); + } - if (!p_constant->initializer->is_constant) { - push_error(vformat(R"(Assigned value for constant "%s" isn't a constant expression.)", p_constant->identifier->name), p_constant->initializer); - } + if (!p_constant->initializer->is_constant) { + push_error(vformat(R"(Assigned value for constant "%s" isn't a constant expression.)", p_constant->identifier->name), p_constant->initializer); + } - type = p_constant->initializer->get_datatype(); + type = p_constant->initializer->get_datatype(); #ifdef DEBUG_ENABLED - if (p_constant->initializer->type == GDScriptParser::Node::CALL && type.kind == GDScriptParser::DataType::BUILTIN && type.builtin_type == Variant::NIL) { - parser->push_warning(p_constant->initializer, GDScriptWarning::VOID_ASSIGNMENT, static_cast<GDScriptParser::CallNode *>(p_constant->initializer)->function_name); - } + if (p_constant->initializer->type == GDScriptParser::Node::CALL && type.kind == GDScriptParser::DataType::BUILTIN && type.builtin_type == Variant::NIL) { + parser->push_warning(p_constant->initializer, GDScriptWarning::VOID_ASSIGNMENT, static_cast<GDScriptParser::CallNode *>(p_constant->initializer)->function_name); + } #endif + } if (p_constant->datatype_specifier != nullptr) { GDScriptParser::DataType explicit_type = resolve_datatype(p_constant->datatype_specifier); |