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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
(...skipping 47 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
58 } | 58 } |
59 | 59 |
60 | 60 |
61 function InstantiateFunction(data, name) { | 61 function InstantiateFunction(data, name) { |
62 // We need a reference to kApiFunctionCache in the stack frame | 62 // We need a reference to kApiFunctionCache in the stack frame |
63 // if we need to bail out from a stack overflow. | 63 // if we need to bail out from a stack overflow. |
64 var cache = kApiFunctionCache; | 64 var cache = kApiFunctionCache; |
65 var serialNumber = %GetTemplateField(data, kApiSerialNumberOffset); | 65 var serialNumber = %GetTemplateField(data, kApiSerialNumberOffset); |
66 var isFunctionCached = | 66 var isFunctionCached = |
67 (serialNumber in cache) && | 67 (serialNumber in cache) && |
68 (cache[serialNumber] != -1); | 68 (cache[serialNumber] != kUninitialized); |
Mads Ager (chromium)
2009/01/13 07:35:37
This would fit on the line above now that the loca
olehougaard
2009/01/13 07:37:23
Fixed
| |
69 if (!isFunctionCached) { | 69 if (!isFunctionCached) { |
70 try { | 70 try { |
71 cache[serialNumber] = null; | 71 cache[serialNumber] = null; |
72 var fun = %CreateApiFunction(data); | 72 var fun = %CreateApiFunction(data); |
73 if (name) %FunctionSetName(fun, name); | 73 if (name) %FunctionSetName(fun, name); |
74 cache[serialNumber] = fun; | 74 cache[serialNumber] = fun; |
75 var prototype = %GetTemplateField(data, kApiPrototypeTemplateOffset); | 75 var prototype = %GetTemplateField(data, kApiPrototypeTemplateOffset); |
76 fun.prototype = prototype ? Instantiate(prototype) : {}; | 76 fun.prototype = prototype ? Instantiate(prototype) : {}; |
77 %SetProperty(fun.prototype, "constructor", fun, DONT_ENUM); | 77 %SetProperty(fun.prototype, "constructor", fun, DONT_ENUM); |
78 var parent = %GetTemplateField(data, kApiParentTemplateOffset); | 78 var parent = %GetTemplateField(data, kApiParentTemplateOffset); |
79 if (parent) { | 79 if (parent) { |
80 var parent_fun = Instantiate(parent); | 80 var parent_fun = Instantiate(parent); |
81 fun.prototype.__proto__ = parent_fun.prototype; | 81 fun.prototype.__proto__ = parent_fun.prototype; |
82 } | 82 } |
83 ConfigureTemplateInstance(fun, data); | 83 ConfigureTemplateInstance(fun, data); |
84 } catch (e) { | 84 } catch (e) { |
85 cache[serialNumber] = -1; | 85 cache[serialNumber] = kUninitialized; |
86 throw e; | 86 throw e; |
87 } | 87 } |
88 } | 88 } |
89 return cache[serialNumber]; | 89 return cache[serialNumber]; |
90 } | 90 } |
91 | 91 |
92 | 92 |
93 function ConfigureTemplateInstance(obj, data) { | 93 function ConfigureTemplateInstance(obj, data) { |
94 var properties = %GetTemplateField(data, kApiPropertyListOffset); | 94 var properties = %GetTemplateField(data, kApiPropertyListOffset); |
95 if (properties) { | 95 if (properties) { |
96 // Disable access checks while instantiating the object. | 96 // Disable access checks while instantiating the object. |
97 var requires_access_checks = %DisableAccessChecks(obj); | 97 var requires_access_checks = %DisableAccessChecks(obj); |
98 try { | 98 try { |
99 for (var i = 0; i < properties[0]; i += 3) { | 99 for (var i = 0; i < properties[0]; i += 3) { |
100 var name = properties[i + 1]; | 100 var name = properties[i + 1]; |
101 var prop_data = properties[i + 2]; | 101 var prop_data = properties[i + 2]; |
102 var attributes = properties[i + 3]; | 102 var attributes = properties[i + 3]; |
103 var value = Instantiate(prop_data, name); | 103 var value = Instantiate(prop_data, name); |
104 %SetProperty(obj, name, value, attributes); | 104 %SetProperty(obj, name, value, attributes); |
105 } | 105 } |
106 } finally { | 106 } finally { |
107 if (requires_access_checks) %EnableAccessChecks(obj); | 107 if (requires_access_checks) %EnableAccessChecks(obj); |
108 } | 108 } |
109 } | 109 } |
110 } | 110 } |
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