Method ParseReturnStatement

neo/d3xp/script/Script_Compiler.cpp:1699–1748

================ idCompiler::ParseReturnStatement ================ */

================
*/
void idCompiler::ParseReturnStatement( void ) {
	idVarDef	*e;
	etype_t		type_a;
	etype_t		type_b;
	const opcode_t	*op;

	if ( CheckToken( ";" ) ) {
		if ( scope->TypeDef()->ReturnType()->Type() != ev_void ) {
			Error( "expecting return value" );
		}

		EmitOpcode( OP_RETURN, 0, 0 );
		return;
	}

	e = GetExpression( TOP_PRIORITY );
	ExpectToken( ";" );

	type_a = e->Type();
	type_b = scope->TypeDef()->ReturnType()->Type();

	if ( TypeMatches( type_a, type_b ) ) {
		EmitOpcode( OP_RETURN, e, 0 );
		return;
	}

	for( op = opcodes; op->name; op++ ) {
		if ( !strcmp( op->name, "=" ) ) {
			break;
		}
	}

	assert( op->name );

	while( !TypeMatches( type_a, op->type_a->Type() ) || !TypeMatches( type_b, op->type_b->Type() ) ) {
		op++;
		if ( !op->name || strcmp( op->name, "=" ) ) {
			Error( "type mismatch for return value" );
		}
	}

	idTypeDef *returnType = scope->TypeDef()->ReturnType();
	if ( returnType->Type() == ev_string ) {
		EmitOpcode( op, e, gameLocal.program.returnStringDef );
	} else {
		gameLocal.program.returnDef->SetTypeDef( returnType );
		EmitOpcode( op, e, gameLocal.program.returnDef );
	}
	EmitOpcode( OP_RETURN, 0, 0 );
}

/*
================