src/v8/test/cctest/test-unscopables-hidden-prototype.cc

   1 // Copyright 2014 the V8 project authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <stdlib.h>
   6
   7 #include "src/v8.h"
   8 #include "test/cctest/cctest.h"
   9
  10 namespace {
  11
  12
  13 static void Cleanup() {
  14   CompileRun(
  15       "delete object.x;"
  16       "delete hidden_prototype.x;"
  17       "delete object[Symbol.unscopables];"
  18       "delete hidden_prototype[Symbol.unscopables];");
  19 }
  20
  21
  22 TEST(Unscopables) {
  23   LocalContext context;
  24   v8::Isolate* isolate = context->GetIsolate();
  25   v8::HandleScope handle_scope(isolate);
  26
  27   v8::Local<v8::FunctionTemplate> t0 = v8::FunctionTemplate::New(isolate);
  28   v8::Local<v8::FunctionTemplate> t1 = v8::FunctionTemplate::New(isolate);
  29
  30   t1->SetHiddenPrototype(true);
  31
  32   v8::Local<v8::Object> object = t0->GetFunction()->NewInstance();
  33   v8::Local<v8::Object> hidden_prototype = t1->GetFunction()->NewInstance();
  34
  35   object->SetPrototype(hidden_prototype);
  36
  37   context->Global()->Set(v8_str("object"), object);
  38   context->Global()->Set(v8_str("hidden_prototype"), hidden_prototype);
  39
  40   CHECK_EQ(1, CompileRun(
  41                   "var result;"
  42                   "var x = 0;"
  43                   "object.x = 1;"
  44                   "with (object) {"
  45                   "  result = x;"
  46                   "}"
  47                   "result")->Int32Value());
  48
  49   Cleanup();
  50   CHECK_EQ(2, CompileRun(
  51                   "var result;"
  52                   "var x = 0;"
  53                   "hidden_prototype.x = 2;"
  54                   "with (object) {"
  55                   "  result = x;"
  56                   "}"
  57                   "result")->Int32Value());
  58
  59   Cleanup();
  60   CHECK_EQ(0, CompileRun(
  61                   "var result;"
  62                   "var x = 0;"
  63                   "object.x = 3;"
  64                   "object[Symbol.unscopables] = {x: true};"
  65                   "with (object) {"
  66                   "  result = x;"
  67                   "}"
  68                   "result")->Int32Value());
  69
  70   Cleanup();
  71   CHECK_EQ(0, CompileRun(
  72                   "var result;"
  73                   "var x = 0;"
  74                   "hidden_prototype.x = 4;"
  75                   "hidden_prototype[Symbol.unscopables] = {x: true};"
  76                   "with (object) {"
  77                   "  result = x;"
  78                   "}"
  79                   "result")->Int32Value());
  80
  81   Cleanup();
  82   CHECK_EQ(0, CompileRun(
  83                   "var result;"
  84                   "var x = 0;"
  85                   "object.x = 5;"
  86                   "hidden_prototype[Symbol.unscopables] = {x: true};"
  87                   "with (object) {"
  88                   "  result = x;"
  89                   "}"
  90                   "result;")->Int32Value());
  91
  92   Cleanup();
  93   CHECK_EQ(0, CompileRun(
  94                   "var result;"
  95                   "var x = 0;"
  96                   "hidden_prototype.x = 6;"
  97                   "object[Symbol.unscopables] = {x: true};"
  98                   "with (object) {"
  99                   "  result = x;"
 100                   "}"
 101                   "result")->Int32Value());
 102 }
 103 }