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Changes to /trunk/src/apinatives.js
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/trunk/src/apinatives.js /trunk/src/apinatives.js   r8
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 svn:eol-style
   1 native
  
Contents
  1 // Copyright 2006-2008 Google Inc. All Rights Reserved.
  2 // Redistribution and use in source and binary forms, with or without
  3 // modification, are permitted provided that the following conditions are
  4 // met:
  5 //
  6 // * Redistributions of source code must retain the above copyright
  7 // notice, this list of conditions and the following disclaimer.
  8 // * Redistributions in binary form must reproduce the above
  9 // copyright notice, this list of conditions and the following
  10 // disclaimer in the documentation and/or other materials provided
  11 // with the distribution.
  12 // * Neither the name of Google Inc. nor the names of its
  13 // contributors may be used to endorse or promote products derived
  14 // from this software without specific prior written permission.
  15 //
  16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27
  28 // This file contains infrastructure used by the API. See
  29 // v8natives.js for an explanation of these files are processed and
  30 // loaded.
  31
  32
  33 function CreateDate(time) {
  34 var date = new ORIGINAL_DATE();
  35 date.setTime(time);
  36 return date;
  37 };
  38
  39
  40 const kApiFunctionCache = {};
  41 const functionCache = kApiFunctionCache;
  42
  43
  44 function Instantiate(data) {
  45 if (!%IsTemplate(data)) return data;
  46 var tag = %GetTemplateField(data, kApiTagOffset);
  47 switch (tag) {
  48 case kFunctionTag:
  49 return InstantiateFunction(data);
  50 case kNewObjectTag:
  51 var Constructor = %GetTemplateField(data, kApiConstructorOffset);
  52 var result = Constructor ? new (Instantiate(Constructor))() : {};
  53 ConfigureTemplateInstance(result, data);
  54 return result;
  55 default:
  56 throw 'Unknown API tag <' + tag + '>';
  57 }
  58 };
  59
  60
  61 function InstantiateFunction(data) {
  62 var serialNumber = %GetTemplateField(data, kApiSerialNumberOffset);
  63 if (!(serialNumber in kApiFunctionCache)) {
  64 kApiFunctionCache[serialNumber] = null;
  65 var fun = %CreateApiFunction(data);
  66 kApiFunctionCache[serialNumber] = fun;
  67 var prototype = %GetTemplateField(data, kApiPrototypeTemplateOffset);
  68 fun.prototype = prototype ? Instantiate(prototype) : {};
  69 %AddProperty(fun.prototype, "constructor", fun, DONT_ENUM);
  70 var parent = %GetTemplateField(data, kApiParentTemplateOffset);
  71 if (parent) {
  72 var parent_fun = Instantiate(parent);
  73 fun.prototype.__proto__ = parent_fun.prototype;
  74 }
  75 ConfigureTemplateInstance(fun, data);
  76 }
  77 return kApiFunctionCache[serialNumber];
  78 };
  79
  80
  81 function ConfigureTemplateInstance(obj, data) {
  82 var properties = %GetTemplateField(data, kApiPropertyListOffset);
  83 if (properties) {
  84 for (var i = 0; i < properties[0]; i += 3) {
  85 var name = properties[i + 1];
  86 var prop_data = properties[i + 2];
  87 var attributes = properties[i + 3];
  88 var value = Instantiate(prop_data);
  89 %SetProperty(obj, name, value, attributes);
  90 }
  91 }
  92 };
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