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GDScript: Rework type check

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This commit is contained in:
Dmitrii Maganov 2023-02-17 01:16:24 +02:00
parent 28db611f0f
commit 8fe023ad93
16 changed files with 504 additions and 195 deletions
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33
modules/gdscript/gdscript_parser.cpp
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@ -2463,9 +2463,6 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_binary_operator(Expression
operation->operation = BinaryOpNode::OP_LOGIC_OR;
operation->variant_op = Variant::OP_OR;
break;
case GDScriptTokenizer::Token::IS:
operation->operation = BinaryOpNode::OP_TYPE_TEST;
break;
case GDScriptTokenizer::Token::IN:
operation->operation = BinaryOpNode::OP_CONTENT_TEST;
operation->variant_op = Variant::OP_IN;
@ -3161,6 +3158,22 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_lambda(ExpressionNode *p_p
return lambda;
}
GDScriptParser::ExpressionNode *GDScriptParser::parse_type_test(ExpressionNode *p_previous_operand, bool p_can_assign) {
TypeTestNode *type_test = alloc_node<TypeTestNode>();
reset_extents(type_test, p_previous_operand);
update_extents(type_test);
type_test->operand = p_previous_operand;
type_test->test_type = parse_type();
complete_extents(type_test);
if (type_test->test_type == nullptr) {
push_error(R"(Expected type specifier after "is".)");
}
return type_test;
}
GDScriptParser::ExpressionNode *GDScriptParser::parse_yield(ExpressionNode *p_previous_operand, bool p_can_assign) {
push_error(R"("yield" was removed in Godot 4.0. Use "await" instead.)");
return nullptr;
@ -3529,7 +3542,7 @@ GDScriptParser::ParseRule *GDScriptParser::get_rule(GDScriptTokenizer::Token::Ty
{ nullptr, nullptr, PREC_NONE }, // EXTENDS,
{ &GDScriptParser::parse_lambda, nullptr, PREC_NONE }, // FUNC,
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_CONTENT_TEST }, // IN,
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_TYPE_TEST }, // IS,
{ nullptr, &GDScriptParser::parse_type_test, PREC_TYPE_TEST }, // IS,
{ nullptr, nullptr, PREC_NONE }, // NAMESPACE,
{ &GDScriptParser::parse_preload, nullptr, PREC_NONE }, // PRELOAD,
{ &GDScriptParser::parse_self, nullptr, PREC_NONE }, // SELF,
@ -4379,9 +4392,6 @@ void GDScriptParser::TreePrinter::print_binary_op(BinaryOpNode *p_binary_op) {
case BinaryOpNode::OP_LOGIC_OR:
push_text(" OR ");
break;
case BinaryOpNode::OP_TYPE_TEST:
push_text(" IS ");
break;
case BinaryOpNode::OP_CONTENT_TEST:
push_text(" IN ");
break;
@ -4584,6 +4594,9 @@ void GDScriptParser::TreePrinter::print_expression(ExpressionNode *p_expression)
case Node::TERNARY_OPERATOR:
print_ternary_op(static_cast<TernaryOpNode *>(p_expression));
break;
case Node::TYPE_TEST:
print_type_test(static_cast<TypeTestNode *>(p_expression));
break;
case Node::UNARY_OPERATOR:
print_unary_op(static_cast<UnaryOpNode *>(p_expression));
break;
@ -4943,6 +4956,12 @@ void GDScriptParser::TreePrinter::print_type(TypeNode *p_type) {
}
}
void GDScriptParser::TreePrinter::print_type_test(TypeTestNode *p_test) {
print_expression(p_test->operand);
push_text(" IS ");
print_type(p_test->test_type);
}
void GDScriptParser::TreePrinter::print_unary_op(UnaryOpNode *p_unary_op) {
// Surround in parenthesis for disambiguation.
push_text("(");