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make String.length a method

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This commit is contained in:
K Lange 2020-12-28 11:29:58 +09:00
parent 5a5c597033
commit 86d2a80a6d
1 changed files with 12 additions and 2 deletions
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14
vm.c
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@ -460,6 +460,16 @@ static KrkClosure * boundNative(NativeFn method, int arity) {
return krk_newClosure(methodWrapper);
}
static KrkValue _string_length(int argc, KrkValue argv[]) {
if (argc != 1) {
return NONE_VAL();
}
if (!IS_STRING(argv[0])) {
return NONE_VAL();
}
return INTEGER_VAL(AS_STRING(argv[0])->length);
}
static KrkValue _string_get(int argc, KrkValue argv[]) {
if (argc != 2) {
runtimeError("Wrong number of arguments to String.__get__");
@ -724,11 +734,11 @@ static KrkValue run() {
break;
}
case OBJ_STRING: {
KrkString * string = AS_STRING(krk_peek(0));
/* vm.specialMethodNames[NAME_LEN] ? */
if (!strcmp(name->chars,"length")) {
KrkBoundMethod * bound = krk_newBoundMethod(krk_peek(0), boundNative(_string_length,0));
krk_pop(); /* The string */
krk_push(INTEGER_VAL(string->length));
krk_push(OBJECT_VAL(bound));
} else if (!strcmp(name->chars,"__get__")) {
KrkBoundMethod * bound = krk_newBoundMethod(krk_peek(0), boundNative(_string_get,1));
krk_pop(); /* The string */