ref: 15fb4095b357d0244f83089ee59e55e755a05336
dir: /jserror.c/
#include "jsi.h" #include "jsvalue.h" #include "jsbuiltin.h" #define QQ(X) #X #define Q(X) QQ(X) static int Ep_toString(js_State *J, int argc) { const char *name = "Error"; const char *message = ""; if (!js_isobject(J, -1)) js_typeerror(J, "not an object"); js_getproperty(J, 0, "name"); if (!js_isundefined(J, -1)) name = js_tostring(J, -1); js_pop(J, 1); js_getproperty(J, 0, "message"); if (!js_isundefined(J, -1)) message = js_tostring(J, -1); js_pop(J, 1); if (!strcmp(name, "")) js_pushliteral(J, message); else if (!strcmp(message, "")) js_pushliteral(J, name); else { js_pushliteral(J, name); js_pushliteral(J, ": "); js_concat(J); js_pushliteral(J, message); js_concat(J); } return 1; } static int jsB_ErrorX(js_State *J, int argc, js_Object *prototype) { js_pushobject(J, jsV_newobject(J, JS_CERROR, prototype)); if (argc > 0) { js_pushstring(J, js_tostring(J, 1)); js_setproperty(J, -2, "message"); } return 1; } static void js_newerrorx(js_State *J, const char *message, js_Object *prototype) { js_pushobject(J, jsV_newobject(J, JS_CERROR, prototype)); js_pushstring(J, message); js_setproperty(J, -2, "message"); } #define DERROR(name, Name) \ static int jsB_##Name(js_State *J, int n) { \ return jsB_ErrorX(J, n, J->Name##_prototype); \ } \ void js_new##name(js_State *J, const char *s) { \ js_newerrorx(J, s, J->Name##_prototype); \ } \ void js_##name(js_State *J, const char *fmt, ...) { \ va_list ap; \ char buf[256]; \ va_start(ap, fmt); \ vsnprintf(buf, sizeof buf, fmt, ap); \ va_end(ap); \ js_newerrorx(J, buf, J->Name##_prototype); \ js_throw(J); \ } DERROR(error, Error) DERROR(evalerror, EvalError) DERROR(rangeerror, RangeError) DERROR(referenceerror, ReferenceError) DERROR(syntaxerror, SyntaxError) DERROR(typeerror, TypeError) DERROR(urierror, URIError) #undef DERROR void jsB_initerror(js_State *J) { js_pushobject(J, J->Error_prototype); { jsB_props(J, "name", "Error"); jsB_props(J, "message", "an error has occurred"); jsB_propf(J, "toString", Ep_toString, 0); } js_newcconstructor(J, jsB_Error, jsB_Error, 1); js_defglobal(J, "Error", JS_DONTENUM); #define IERROR(NAME) \ js_pushobject(J, J->NAME##_prototype); \ jsB_props(J, "name", Q(NAME)); \ js_newcconstructor(J, jsB_##NAME, jsB_##NAME, 1); \ js_defglobal(J, Q(NAME), JS_DONTENUM); IERROR(EvalError); IERROR(RangeError); IERROR(ReferenceError); IERROR(SyntaxError); IERROR(TypeError); IERROR(URIError); #undef IERROR }