Method _parse_block

modules/gdscript/gdscript_compiler.cpp:1899–2297

}

Error GDScriptCompiler::_parse_block(CodeGen &codegen, const GDScriptParser::SuiteNode *p_block, bool p_add_locals, bool p_clear_locals) {
	Error err = OK;
	GDScriptCodeGenerator *gen = codegen.generator;
	List<GDScriptCodeGenerator::Address> block_locals;

	gen->clear_temporaries();
	codegen.start_block();

	if (p_add_locals) {
		block_locals = _add_block_locals(codegen, p_block);
	}

	for (int i = 0; i < p_block->statements.size(); i++) {
		const GDScriptParser::Node *s = p_block->statements[i];

		gen->write_newline(s->start_line);

		switch (s->type) {
			case GDScriptParser::Node::MATCH: {
				const GDScriptParser::MatchNode *match = static_cast<const GDScriptParser::MatchNode *>(s);

				codegen.start_block(); // Add an extra block, since @special locals belong to the match scope.

				// Evaluate the match expression.
				GDScriptCodeGenerator::Address value = codegen.add_local("@match_value", _gdtype_from_datatype(match->test->get_datatype(), codegen.script));
				GDScriptCodeGenerator::Address value_expr = _parse_expression(codegen, err, match->test);
				if (err) {
					return err;
				}

				/// Assign to local.
				/// @todo This can be improved by passing the target to parse_expression().
				gen->write_assign(value, value_expr);

				if (value_expr.mode == GDScriptCodeGenerator::Address::TEMPORARY) {
					codegen.generator->pop_temporary();
				}

				// Then, let's save the type of the value in the stack too, so we can reuse for later comparisons.
				GDScriptDataType typeof_type;
				typeof_type.has_type = true;
				typeof_type.kind = GDScriptDataType::BUILTIN;
				typeof_type.builtin_type = Variant::INT;
				GDScriptCodeGenerator::Address type = codegen.add_local("@match_type", typeof_type);

				Vector<GDScriptCodeGenerator::Address> typeof_args;
				typeof_args.push_back(value);
				gen->write_call_utility(type, "typeof", typeof_args);

				// Now we can actually start testing.
				// For each branch.
				for (int j = 0; j < match->branches.size(); j++) {
					if (j > 0) {
						// Use `else` to not check the next branch after matching.
						gen->write_else();
					}

					const GDScriptParser::MatchBranchNode *branch = match->branches[j];