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Implement RETURN_VALUE_DISCARDED warning in GDscript

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This commit is contained in:
clayjohn 2022-10-13 10:31:12 -07:00
parent 042e81f663
commit be1e9acb7c
4 changed files with 18 additions and 8 deletions
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16
modules/gdscript/gdscript_analyzer.cpp
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@ -1041,7 +1041,7 @@ void GDScriptAnalyzer::resolve_class_body(GDScriptParser::ClassNode *p_class) {
}
}
void GDScriptAnalyzer::resolve_node(GDScriptParser::Node *p_node) {
void GDScriptAnalyzer::resolve_node(GDScriptParser::Node *p_node, bool p_is_root) {
ERR_FAIL_COND_MSG(p_node == nullptr, "Trying to resolve type of a null node.");
switch (p_node->type) {
@ -1114,7 +1114,7 @@ void GDScriptAnalyzer::resolve_node(GDScriptParser::Node *p_node) {
case GDScriptParser::Node::SUBSCRIPT:
case GDScriptParser::Node::TERNARY_OPERATOR:
case GDScriptParser::Node::UNARY_OPERATOR:
reduce_expression(static_cast<GDScriptParser::ExpressionNode *>(p_node), true);
reduce_expression(static_cast<GDScriptParser::ExpressionNode *>(p_node), p_is_root);
break;
case GDScriptParser::Node::BREAK:
case GDScriptParser::Node::BREAKPOINT:
@ -1411,7 +1411,7 @@ void GDScriptAnalyzer::resolve_for(GDScriptParser::ForNode *p_for) {
variable_type.builtin_type = Variant::INT; // Can this ever be a float or something else?
p_for->variable->set_datatype(variable_type);
} else if (p_for->list) {
resolve_node(p_for->list);
resolve_node(p_for->list, false);
if (p_for->list->datatype.has_container_element_type()) {
variable_type = p_for->list->datatype.get_container_element_type();
variable_type.type_source = GDScriptParser::DataType::ANNOTATED_INFERRED;
@ -1439,7 +1439,7 @@ void GDScriptAnalyzer::resolve_for(GDScriptParser::ForNode *p_for) {
}
void GDScriptAnalyzer::resolve_while(GDScriptParser::WhileNode *p_while) {
resolve_node(p_while->condition);
resolve_node(p_while->condition, false);
resolve_suite(p_while->loop);
p_while->set_datatype(p_while->loop->get_datatype());
@ -1824,7 +1824,7 @@ void GDScriptAnalyzer::reduce_expression(GDScriptParser::ExpressionNode *p_expre
reduce_binary_op(static_cast<GDScriptParser::BinaryOpNode *>(p_expression));
break;
case GDScriptParser::Node::CALL:
reduce_call(static_cast<GDScriptParser::CallNode *>(p_expression), p_is_root);
reduce_call(static_cast<GDScriptParser::CallNode *>(p_expression), false, p_is_root);
break;
case GDScriptParser::Node::CAST:
reduce_cast(static_cast<GDScriptParser::CastNode *>(p_expression));
@ -2548,6 +2548,12 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a
mark_lambda_use_self();
}
#ifdef DEBUG_ENABLED
if (p_is_root && return_type.kind != GDScriptParser::DataType::UNRESOLVED && return_type.builtin_type != Variant::NIL) {
parser->push_warning(p_call, GDScriptWarning::RETURN_VALUE_DISCARDED, p_call->function_name);
}
#endif // DEBUG_ENABLED
call_type = return_type;
} else {
bool found = false;