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support JSON modules in qjsc - added support of JSON5 modules (using type = "json5")

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This commit is contained in:
Fabrice Bellard
2025-05-24 10:24:01 +02:00
parent 1dfaa61680
commit 7c487f1c6a
7 changed files with 149 additions and 44 deletions
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71
quickjs-libc.c
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@@ -599,6 +599,20 @@ static int json_module_init(JSContext *ctx, JSModuleDef *m)
return 0;
}
static JSModuleDef *create_json_module(JSContext *ctx, const char *module_name, JSValue val)
{
JSModuleDef *m;
m = JS_NewCModule(ctx, module_name, json_module_init);
if (!m) {
JS_FreeValue(ctx, val);
return NULL;
}
/* only export the "default" symbol which will contain the JSON object */
JS_AddModuleExport(ctx, m, "default");
JS_SetModulePrivateValue(ctx, m, val);
return m;
}
/* in order to conform with the specification, only the keys should be
tested and not the associated values. */
int js_module_check_attributes(JSContext *ctx, void *opaque,
@@ -631,8 +645,8 @@ int js_module_check_attributes(JSContext *ctx, void *opaque,
return ret;
}
/* return TRUE if the attributes indicate a JSON module */
JS_BOOL js_module_test_json(JSContext *ctx, JSValueConst attributes)
/* return > 0 if the attributes indicate a JSON module */
int js_module_test_json(JSContext *ctx, JSValueConst attributes)
{
JSValue str;
const char *cstr;
@@ -649,7 +663,13 @@ JS_BOOL js_module_test_json(JSContext *ctx, JSValueConst attributes)
if (!cstr)
return FALSE;
/* XXX: raise an error if unknown type ? */
res = (len == 4 && !memcmp(cstr, "json", len));
if (len == 4 && !memcmp(cstr, "json", len)) {
res = 1;
} else if (len == 5 && !memcmp(cstr, "json5", len)) {
res = 2;
} else {
res = 0;
}
JS_FreeCString(ctx, cstr);
return res;
}
@@ -659,7 +679,8 @@ JSModuleDef *js_module_loader(JSContext *ctx,
JSValueConst attributes)
{
JSModuleDef *m;
int res;
if (has_suffix(module_name, ".so")) {
m = js_module_loader_so(ctx, module_name);
} else {
@@ -672,23 +693,22 @@ JSModuleDef *js_module_loader(JSContext *ctx,
module_name);
return NULL;
}
if (has_suffix(module_name, ".json") ||
js_module_test_json(ctx, attributes)) {
/* compile as JSON */
res = js_module_test_json(ctx, attributes);
if (has_suffix(module_name, ".json") || res > 0) {
/* compile as JSON or JSON5 depending on "type" */
JSValue val;
val = JS_ParseJSON(ctx, (char *)buf, buf_len, module_name);
int flags;
if (res == 2)
flags = JS_PARSE_JSON_EXT;
else
flags = 0;
val = JS_ParseJSON2(ctx, (char *)buf, buf_len, module_name, flags);
js_free(ctx, buf);
if (JS_IsException(val))
return NULL;
m = JS_NewCModule(ctx, module_name, json_module_init);
if (!m) {
JS_FreeValue(ctx, val);
m = create_json_module(ctx, module_name, val);
if (!m)
return NULL;
}
/* only export the "default" symbol which will contain the JSON object */
JS_AddModuleExport(ctx, m, "default");
JS_SetModulePrivateValue(ctx, m, val);
} else {
JSValue func_val;
/* compile the module */
@@ -4303,3 +4323,22 @@ void js_std_eval_binary(JSContext *ctx, const uint8_t *buf, size_t buf_len,
JS_FreeValue(ctx, val);
}
}
void js_std_eval_binary_json_module(JSContext *ctx,
const uint8_t *buf, size_t buf_len,
const char *module_name)
{
JSValue obj;
JSModuleDef *m;
obj = JS_ReadObject(ctx, buf, buf_len, 0);
if (JS_IsException(obj))
goto exception;
m = create_json_module(ctx, module_name, obj);
if (!m) {
exception:
js_std_dump_error(ctx);
exit(1);
}
}