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top-level-await support - follow the spec in the implementation of the module linking and evaluation to avoid errors with cycling module dependencies

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This commit is contained in:
Fabrice Bellard
2023-12-27 17:10:47 +01:00
parent 9b587c461b
commit 6e4931c4ad
5 changed files with 668 additions and 99 deletions
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35
run-test262.c
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@@ -1174,7 +1174,7 @@ static int eval_buf(JSContext *ctx, const char *buf, size_t buf_len,
{
JSValue res_val, exception_val;
int ret, error_line, pos, pos_line;
BOOL is_error, has_error_line;
BOOL is_error, has_error_line, ret_promise;
const char *error_name;
pos = skip_comments(buf, 1, &pos_line);
@@ -1183,12 +1183,19 @@ static int eval_buf(JSContext *ctx, const char *buf, size_t buf_len,
exception_val = JS_UNDEFINED;
error_name = NULL;
/* a module evaluation returns a promise */
ret_promise = ((eval_flags & JS_EVAL_TYPE_MODULE) != 0);
async_done = 0; /* counter of "Test262:AsyncTestComplete" messages */
res_val = JS_Eval(ctx, buf, buf_len, filename, eval_flags);
if (is_async && !JS_IsException(res_val)) {
JS_FreeValue(ctx, res_val);
if ((is_async || ret_promise) && !JS_IsException(res_val)) {
JSValue promise = JS_UNDEFINED;
if (ret_promise) {
promise = res_val;
} else {
JS_FreeValue(ctx, res_val);
}
for(;;) {
JSContext *ctx1;
ret = JS_ExecutePendingJob(JS_GetRuntime(ctx), &ctx1);
@@ -1196,15 +1203,27 @@ static int eval_buf(JSContext *ctx, const char *buf, size_t buf_len,
res_val = JS_EXCEPTION;
break;
} else if (ret == 0) {
/* test if the test called $DONE() once */
if (async_done != 1) {
res_val = JS_ThrowTypeError(ctx, "$DONE() not called");
if (is_async) {
/* test if the test called $DONE() once */
if (async_done != 1) {
res_val = JS_ThrowTypeError(ctx, "$DONE() not called");
} else {
res_val = JS_UNDEFINED;
}
} else {
res_val = JS_UNDEFINED;
/* check that the returned promise is fulfilled */
JSPromiseStateEnum state = JS_PromiseState(ctx, promise);
if (state == JS_PROMISE_FULFILLED)
res_val = JS_UNDEFINED;
else if (state == JS_PROMISE_REJECTED)
res_val = JS_Throw(ctx, JS_PromiseResult(ctx, promise));
else
res_val = JS_ThrowTypeError(ctx, "promise is pending");
}
break;
}
}
JS_FreeValue(ctx, promise);
}
if (JS_IsException(res_val)) {