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Implement Promise.try

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This commit is contained in:
Saúl Ibarra Corretgé 2024-10-15 11:46:45 +02:00
parent e204fa53a3
commit d9d6939b20
2 changed files with 30 additions and 1 deletions
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29
quickjs.c
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@ -48018,6 +48018,34 @@ static JSValue js_promise_withResolvers(JSContext *ctx, JSValue this_val,
return obj;
}
static JSValue js_promise_try(JSContext *ctx, JSValue this_val,
int argc, JSValue *argv)
{
JSValue result_promise, resolving_funcs[2], ret, ret2;
BOOL is_reject = 0;
if (!JS_IsObject(this_val))
return JS_ThrowTypeErrorNotAnObject(ctx);
result_promise = js_new_promise_capability(ctx, resolving_funcs, this_val);
if (JS_IsException(result_promise))
return result_promise;
ret = JS_Call(ctx, argv[0], JS_UNDEFINED, argc - 1, argv + 1);
if (JS_IsException(ret)) {
is_reject = 1;
ret = JS_GetException(ctx);
}
ret2 = JS_Call(ctx, resolving_funcs[is_reject], JS_UNDEFINED, 1, &ret);
JS_FreeValue(ctx, resolving_funcs[0]);
JS_FreeValue(ctx, resolving_funcs[1]);
JS_FreeValue(ctx, ret);
if (JS_IsException(ret2)) {
JS_FreeValue(ctx, result_promise);
return ret2;
}
JS_FreeValue(ctx, ret2);
return result_promise;
}
static __exception int remainingElementsCount_add(JSContext *ctx,
JSValue resolve_element_env,
int addend)
@ -48505,6 +48533,7 @@ static const JSCFunctionListEntry js_promise_funcs[] = {
JS_CFUNC_MAGIC_DEF("all", 1, js_promise_all, PROMISE_MAGIC_all ),
JS_CFUNC_MAGIC_DEF("allSettled", 1, js_promise_all, PROMISE_MAGIC_allSettled ),
JS_CFUNC_MAGIC_DEF("any", 1, js_promise_all, PROMISE_MAGIC_any ),
JS_CFUNC_DEF("try", 1, js_promise_try ),
JS_CFUNC_DEF("race", 1, js_promise_race ),
JS_CFUNC_DEF("withResolvers", 0, js_promise_withResolvers ),
JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL),

2
test262.conf
View file

@ -153,7 +153,7 @@ Object.is
optional-catch-binding
optional-chaining
Promise
promise-try=skip
promise-try
promise-with-resolvers
Promise.allSettled
Promise.any