webassembly/proxy_c: Provide constants for fixed JsProxy refs.

dpgeorge · dpgeorge · commit 9b61bb93f9e3 · 2025-07-24T14:37:30.000+10:00
Signed-off-by: Damien George &lt;damien@micropython.org&gt;
diff --git a/ports/webassembly/modjs.c b/ports/webassembly/modjs.c
@@ -35,7 +35,7 @@
 
 void mp_module_js_attr(mp_obj_t self_in, qstr attr, mp_obj_t *dest) {
     mp_obj_jsproxy_t global_this;
-    global_this.ref = 0;
+    global_this.ref = MP_OBJ_JSPROXY_REF_GLOBAL_THIS;
     mp_obj_jsproxy_attr(MP_OBJ_FROM_PTR(&global_this), attr, dest);
 }
 
diff --git a/ports/webassembly/proxy_c.c b/ports/webassembly/proxy_c.c
@@ -202,7 +202,7 @@ void proxy_convert_mp_to_js_obj_cside(mp_obj_t obj, uint32_t *out) {
         out[2] = (uintptr_t)str;
     } else if (obj == mp_const_undefined) {
         kind = PROXY_KIND_MP_JSPROXY;
-        out[1] = 1;
+        out[1] = MP_OBJ_JSPROXY_REF_UNDEFINED;
     } else if (mp_obj_is_jsproxy(obj)) {
         kind = PROXY_KIND_MP_JSPROXY;
         out[1] = mp_obj_jsproxy_get_ref(obj);
diff --git a/ports/webassembly/proxy_c.h b/ports/webassembly/proxy_c.h
@@ -28,6 +28,10 @@
 
 #include "py/obj.h"
 
+// Fixed JsProxy references.
+#define MP_OBJ_JSPROXY_REF_GLOBAL_THIS (0)
+#define MP_OBJ_JSPROXY_REF_UNDEFINED (1)
+
 // proxy value number of items
 #define PVN (3)
 

Original file line number	Diff line number	Diff line change
`@@ -35,7 +35,7 @@`
`35`	`35`
`36`	`36`	`void mp_module_js_attr(mp_obj_t self_in, qstr attr, mp_obj_t *dest) {`
`37`	`37`	`mp_obj_jsproxy_t global_this;`
`38`		`- global_this.ref = 0;`
	`38`	`+ global_this.ref = MP_OBJ_JSPROXY_REF_GLOBAL_THIS;`
`39`	`39`	`mp_obj_jsproxy_attr(MP_OBJ_FROM_PTR(&global_this), attr, dest);`
`40`	`40`	`}`
`41`	`41`