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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 |
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67 // if we need to bail out from a stack overflow. | 67 // if we need to bail out from a stack overflow. |
68 var cache = kApiFunctionCache; | 68 var cache = kApiFunctionCache; |
69 var serialNumber = %GetTemplateField(data, kApiSerialNumberOffset); | 69 var serialNumber = %GetTemplateField(data, kApiSerialNumberOffset); |
70 var isFunctionCached = | 70 var isFunctionCached = |
71 (serialNumber in cache) && (cache[serialNumber] != kUninitialized); | 71 (serialNumber in cache) && (cache[serialNumber] != kUninitialized); |
72 if (!isFunctionCached) { | 72 if (!isFunctionCached) { |
73 try { | 73 try { |
74 cache[serialNumber] = null; | 74 cache[serialNumber] = null; |
75 var fun = %CreateApiFunction(data); | 75 var fun = %CreateApiFunction(data); |
76 if (name) %FunctionSetName(fun, name); | 76 if (name) %FunctionSetName(fun, name); |
| 77 cache[serialNumber] = fun; |
77 var flags = %GetTemplateField(data, kApiFlagOffset); | 78 var flags = %GetTemplateField(data, kApiFlagOffset); |
78 var doNotCache = flags & (1 << kDoNotCacheBit); | |
79 if (!doNotCache) cache[serialNumber] = fun; | |
80 if (flags & (1 << kRemovePrototypeBit)) { | 79 if (flags & (1 << kRemovePrototypeBit)) { |
81 %FunctionRemovePrototype(fun); | 80 %FunctionRemovePrototype(fun); |
82 } else { | 81 } else { |
83 var prototype = %GetTemplateField(data, kApiPrototypeTemplateOffset); | 82 var prototype = %GetTemplateField(data, kApiPrototypeTemplateOffset); |
84 // Note: Do not directly use an object template as a condition, our | 83 // Note: Do not directly use an object template as a condition, our |
85 // internal ToBoolean doesn't handle that! | 84 // internal ToBoolean doesn't handle that! |
86 fun.prototype = typeof prototype === 'undefined' ? | 85 fun.prototype = typeof prototype === 'undefined' ? |
87 {} : Instantiate(prototype); | 86 {} : Instantiate(prototype); |
88 if (flags & (1 << kReadOnlyPrototypeBit)) { | 87 if (flags & (1 << kReadOnlyPrototypeBit)) { |
89 %FunctionSetReadOnlyPrototype(fun); | 88 %FunctionSetReadOnlyPrototype(fun); |
90 } | 89 } |
91 %SetProperty(fun.prototype, "constructor", fun, DONT_ENUM); | 90 %SetProperty(fun.prototype, "constructor", fun, DONT_ENUM); |
92 var parent = %GetTemplateField(data, kApiParentTemplateOffset); | 91 var parent = %GetTemplateField(data, kApiParentTemplateOffset); |
93 // Note: Do not directly use a function template as a condition, our | 92 // Note: Do not directly use a function template as a condition, our |
94 // internal ToBoolean doesn't handle that! | 93 // internal ToBoolean doesn't handle that! |
95 if (!(typeof parent === 'undefined')) { | 94 if (!(typeof parent === 'undefined')) { |
96 var parent_fun = Instantiate(parent); | 95 var parent_fun = Instantiate(parent); |
97 %SetPrototype(fun.prototype, parent_fun.prototype); | 96 %SetPrototype(fun.prototype, parent_fun.prototype); |
98 } | 97 } |
99 } | 98 } |
100 ConfigureTemplateInstance(fun, data); | 99 ConfigureTemplateInstance(fun, data); |
101 if (doNotCache) return fun; | |
102 } catch (e) { | 100 } catch (e) { |
103 cache[serialNumber] = kUninitialized; | 101 cache[serialNumber] = kUninitialized; |
104 throw e; | 102 throw e; |
105 } | 103 } |
106 } | 104 } |
107 return cache[serialNumber]; | 105 return cache[serialNumber]; |
108 } | 106 } |
109 | 107 |
110 | 108 |
111 function ConfigureTemplateInstance(obj, data) { | 109 function ConfigureTemplateInstance(obj, data) { |
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132 obj, name, getter, setter, attribute, access_control); | 130 obj, name, getter, setter, attribute, access_control); |
133 } else { | 131 } else { |
134 throw "Bad properties array"; | 132 throw "Bad properties array"; |
135 } | 133 } |
136 i += length + 1; | 134 i += length + 1; |
137 } | 135 } |
138 } finally { | 136 } finally { |
139 if (requires_access_checks) %EnableAccessChecks(obj); | 137 if (requires_access_checks) %EnableAccessChecks(obj); |
140 } | 138 } |
141 } | 139 } |
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