shithub: libmujs

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Add js_iserror function.

--- a/jsrun.c

+++ b/jsrun.c

@@ -224,6 +224,12 @@

 	return 0;

 }

+int js_iserror(js_State *J, int idx)

+{

+	js_Value *v = stackidx(J, idx);

+	return v->type == JS_TOBJECT && v->u.object->type == JS_CERROR;

+}

+

 static const char *js_typeof(js_State *J, int idx)

 {

 	js_Value *v = stackidx(J, idx);

--- a/mujs.h

+++ b/mujs.h

@@ -174,6 +174,7 @@

 int js_iscoercible(js_State *J, int idx);

 int js_iscallable(js_State *J, int idx);

 int js_isuserdata(js_State *J, int idx, const char *tag);

+int js_iserror(js_State *J, int idx);

 int js_toboolean(js_State *J, int idx);

 double js_tonumber(js_State *J, int idx);