Proxies: Make 'with' work, plus minor other fixes

test/mjsunit/harmony/proxies-with.js

+// Copyright 2011 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --harmony-proxies
+
+
+// Helper.
+
+function TestWithProxies(test, x, y, z) {
+  test(Proxy.create, x, y, z)
+  test(function(h) {return Proxy.createFunction(h, function() {})}, x, y, z)
+}
+
+
+
+// Getting.
+
+function TestWithGet(handler) {
+  TestWithProxies(TestWithGet2, handler)
+}
+
+var c = "global"
+var key = ""
+
+function TestWithGet2(create, handler) {
+  var b = "local"
+
+  var p = create(handler)
+  with (p) {
+    assertEquals("onproxy", a)
+    assertEquals("local", b)
+    assertEquals("global", c)
+  }
+
+  var o = Object.create(p, {d: {value: "own"}})
+  with (o) {
+    assertEquals("onproxy", a)
+    assertEquals("local", b)
+    assertEquals("global", c)
+    assertEquals("own", d)
+  }
+}
+
+TestWithGet({
+  get: function(r, k) { key = k; return k === "a" ? "onproxy" : undefined },
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ? {value: "onproxy", configurable: true} : undefined
+  }
+})
+
+TestWithGet({
+  get: function(r, k) { return this.get2(r, k) },
+  get2: function(r, k) { key = k; return k === "a" ? "onproxy" : undefined },
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ? {value: "onproxy", configurable: true} : undefined
+  }
+})
+
+TestWithGet({
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ? {value: "onproxy", configurable: true} : undefined
+  }
+})
+
+TestWithGet({
+  getPropertyDescriptor: function(k) { return this.getPropertyDescriptor2(k) },
+  getPropertyDescriptor2: function(k) {
+    key = k;
+    return k === "a" ? {value: "onproxy", configurable: true} : undefined
+  }
+})
+
+TestWithGet({
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ?
+        {get value() { return "onproxy" }, configurable: true} : undefined
+  }
+})
+
+TestWithGet({
+  get: undefined,
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ? {value: "onproxy", configurable: true} : undefined
+  }
+})
+
+
+
+// Invoking.
+
+function TestWithGetCall(handler) {
+  TestWithProxies(TestWithGetCall2, handler)
+}
+
+var receiver = null
+var c = function() { return "global" }
+
+function TestWithGetCall2(create, handler) {
+  var b = function() { return "local" }
+
+  var p = create(handler)
+  with (p) {
+    receiver = null
+    assertEquals("onproxy", a())
+    assertSame(p, receiver)
+    assertEquals("local", b())
+    assertEquals("global", c())
+  }
+
+  var o = Object.create(p, {d: {value: function() { return "own" }}})
+  with (o) {
+    receiver = null
+    assertEquals("onproxy", a())
+    assertSame(o, receiver)
+    assertEquals("local", b())
+    assertEquals("global", c())
+    assertEquals("own", d())
+  }
+}
+
+function onproxy() { receiver = this; return "onproxy" }
+
+TestWithGetCall({
+  get: function(r, k) { key = k; return k === "a" ? onproxy : undefined },
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ? {value: onproxy, configurable: true} : undefined
+  }
+})
+
+TestWithGetCall({
+  get: function(r, k) { return this.get2(r, k) },
+  get2: function(r, k) { key = k; return k === "a" ? onproxy : undefined },
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ? {value: onproxy, configurable: true} : undefined
+  }
+})
+
+TestWithGetCall({
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ? {value: onproxy, configurable: true} : undefined
+  }
+})
+
+TestWithGetCall({
+  getPropertyDescriptor: function(k) { return this.getPropertyDescriptor2(k) },
+  getPropertyDescriptor2: function(k) {
+    key = k;
+    return k === "a" ? {value: onproxy, configurable: true} : undefined
+  }
+})
+
+TestWithGetCall({
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ?
+        {get value() { return onproxy }, configurable: true} : undefined
+  }
+})
+
+TestWithGetCall({
+  get: undefined,
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ? {value: onproxy, configurable: true} : undefined
+  }
+})
+
+
+function TestWithGetCallThrow(handler) {
+  TestWithProxies(TestWithGetCallThrow2, handler)
+}
+
+function TestWithGetCallThrow2(create, handler) {
+  var b = function() { return "local" }
+
+  var p = create(handler)
+  with (p) {
+    assertThrows(function(){ a() }, "myexn")
+    assertEquals("local", b())
+    assertEquals("global", c())
+  }
+
+  var o = Object.create(p, {d: {value: function() { return "own" }}})
+  with (o) {
+    assertThrows(function(){ a() }, "myexn")
+    assertEquals("local", b())
+    assertEquals("global", c())
+    assertEquals("own", d())
+  }
+}
+
+function onproxythrow() { throw "myexn" }
+
+TestWithGetCallThrow({
+  get: function(r, k) { key = k; return k === "a" ? onproxythrow : undefined },
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ? {value: onproxythrow, configurable: true} : undefined
+  }
+})
+
+TestWithGetCallThrow({
+  get: function(r, k) { return this.get2(r, k) },
+  get2: function(r, k) { key = k; return k === "a" ? onproxythrow : undefined },
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ? {value: onproxythrow, configurable: true} : undefined
+  }
+})
+
+TestWithGetCallThrow({
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ? {value: onproxythrow, configurable: true} : undefined
+  }
+})
+
+TestWithGetCallThrow({
+  getPropertyDescriptor: function(k) { return this.getPropertyDescriptor2(k) },
+  getPropertyDescriptor2: function(k) {
+    key = k;
+    return k === "a" ? {value: onproxythrow, configurable: true} : undefined
+  }
+})
+
+TestWithGetCallThrow({
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ?
+        {get value() { return onproxythrow }, configurable: true} : undefined
+  }
+})
+
+TestWithGetCallThrow({
+  get: undefined,
+  getPropertyDescriptor: function(k) {
+    key = k;
+    return k === "a" ? {value: onproxythrow, configurable: true} : undefined
+  }
+})
+
+
+
+// Setting.
+
+var key
+var val
+
+function TestWithSet(handler, hasSetter) {
+  TestWithProxies(TestWithSet2, handler, hasSetter)
+}
+
+var c = "global"
+
+function TestWithSet2(create, handler, hasSetter) {
+  var b = "local"
+
+  var p = create(handler)
+  key = val = undefined
+  with (p) {
+    a = "set"
+    assertEquals("a", key)
+    assertEquals("set", val)
+    assertEquals("local", b)
+    assertEquals("global", c)
+    b = "local"
+    c = "global"
+    assertEquals("a", key)
+    assertEquals("set", val)
+  }
+
+  if (!hasSetter) return
+
+  var o = Object.create(p, {d: {value: "own"}})
+  key = val = undefined
+  with (o) {
+    a = "set"
+    assertEquals("a", key)
+    assertEquals("set", val)
+    assertEquals("local", b)
+    assertEquals("global", c)
+    assertEquals("own", d)
+    b = "local"
+    c = "global"
+    d = "own"
+    assertEquals("a", key)
+    assertEquals("set", val)
+  }
+}
+
+TestWithSet({
+  set: function(r, k, v) { key = k; val = v; return true },
+  getPropertyDescriptor: function(k) {
+    return k === "a" ? {writable: true, configurable: true} : undefined
+  }
+})
+
+TestWithSet({
+  set: function(r, k, v) { return this.set2(r, k, v) },
+  set2: function(r, k, v) { key = k; val = v; return true },
+  getPropertyDescriptor: function(k) {
+    return k === "a" ? {writable: true, configurable: true} : undefined
+  }
+})
+
+TestWithSet({
+  getPropertyDescriptor: function(k) {
+    return this.getOwnPropertyDescriptor(k)
+  },
+  getOwnPropertyDescriptor: function(k) {
+    return k === "a" ? {writable: true, configurable: true} : undefined
+  },
+  defineProperty: function(k, desc) { key = k; val = desc.value }
+})
+
+TestWithSet({
+  getOwnPropertyDescriptor: function(k) {
+    return this.getPropertyDescriptor2(k)
+  },
+  getPropertyDescriptor: function(k) { return this.getPropertyDescriptor2(k) },
+  getPropertyDescriptor2: function(k) {
+    return k === "a" ? {writable: true, configurable: true} : undefined
+  },
+  defineProperty: function(k, desc) { this.defineProperty2(k, desc) },
+  defineProperty2: function(k, desc) { key = k; val = desc.value }
+})
+
+TestWithSet({
+  getOwnPropertyDescriptor: function(k) {
+    return this.getPropertyDescriptor(k)
+  },
+  getPropertyDescriptor: function(k) {
+    return k === "a" ?
+        {get writable() { return true }, configurable: true} : undefined
+  },
+  defineProperty: function(k, desc) { key = k; val = desc.value }
+})
+
+TestWithSet({
+  getOwnPropertyDescriptor: function(k) {
+    return this.getPropertyDescriptor(k)
+  },
+  getPropertyDescriptor: function(k) {
+    return k === "a" ?
+        {set: function(v) { key = k; val = v }, configurable: true} : undefined
+  }
+}, true)
+
+TestWithSet({
+  getOwnPropertyDescriptor: function(k) {
+    return this.getPropertyDescriptor(k)
+  },
+  getPropertyDescriptor: function(k) { return this.getPropertyDescriptor2(k) },
+  getPropertyDescriptor2: function(k) {
+    return k === "a" ?
+        {set: function(v) { key = k; val = v }, configurable: true} : undefined
+  }
+}, true)
+
+TestWithSet({
+  getOwnPropertyDescriptor: function(k) { return null },
+  getPropertyDescriptor: function(k) {
+    return k === "a" ? {writable: true, configurable: true} : undefined
+  },
+  defineProperty: function(k, desc) { key = k; val = desc.value }
+})
+
+
+function TestWithSetThrow(handler, hasSetter) {
+  TestWithProxies(TestWithSetThrow2, handler, hasSetter)
+}
+
+function TestWithSetThrow2(create, handler, hasSetter) {
+  var p = create(handler)
+  assertThrows(function(){
+    with (p) {
+      a = 1
+    }
+  }, "myexn")
+
+  if (!hasSetter) return
+
+  var o = Object.create(p, {})
+  assertThrows(function(){
+    with (o) {
+      a = 1
+    }
+  }, "myexn")
+}
+
+TestWithSetThrow({
+  set: function(r, k, v) { throw "myexn" },
+  getPropertyDescriptor: function(k) {
+    return k === "a" ? {writable: true, configurable: true} : undefined
+  }
+})
+
+TestWithSetThrow({
+  getPropertyDescriptor: function(k) { throw "myexn" },
+})
+
+TestWithSetThrow({
+  getPropertyDescriptor: function(k) {
+    return k === "a" ? {writable: true, configurable: true} : undefined
+  },
+  defineProperty: function(k, desc) { throw "myexn" }
+})
+
+TestWithSetThrow({
+  getPropertyDescriptor: function(k) {
+    return k === "a" ?
+        {set: function() { throw "myexn" }, configurable: true} : undefined
+  }
+}, true)