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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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145 context_modes_.Add(Variable::INTERNAL); | 145 context_modes_.Add(Variable::INTERNAL); |
146 } | 146 } |
147 } | 147 } |
148 } | 148 } |
149 | 149 |
150 | 150 |
151 // Encoding format in a FixedArray object: | 151 // Encoding format in a FixedArray object: |
152 // | 152 // |
153 // - function name | 153 // - function name |
154 // | 154 // |
| 155 // - calls eval boolean flag |
| 156 // |
155 // - number of variables in the context object (smi) (= function context | 157 // - number of variables in the context object (smi) (= function context |
156 // slot index + 1) | 158 // slot index + 1) |
157 // - list of pairs (name, Var mode) of context-allocated variables (starting | 159 // - list of pairs (name, Var mode) of context-allocated variables (starting |
158 // with context slot 0) | 160 // with context slot 0) |
159 // - NULL (sentinel) | |
160 // | 161 // |
161 // - number of parameters (smi) | 162 // - number of parameters (smi) |
162 // - list of parameter names (starting with parameter 0 first) | 163 // - list of parameter names (starting with parameter 0 first) |
163 // - NULL (sentinel) | |
164 // | 164 // |
165 // - number of variables on the stack (smi) | 165 // - number of variables on the stack (smi) |
166 // - list of names of stack-allocated variables (starting with stack slot 0) | 166 // - list of names of stack-allocated variables (starting with stack slot 0) |
167 // - NULL (sentinel) | |
168 | 167 |
169 // The ScopeInfo representation could be simplified and the ScopeInfo | 168 // The ScopeInfo representation could be simplified and the ScopeInfo |
170 // re-implemented (with almost the same interface). Here is a | 169 // re-implemented (with almost the same interface). Here is a |
171 // suggestion for the new format: | 170 // suggestion for the new format: |
172 // | 171 // |
173 // - have a single list with all variable names (parameters, stack locals, | 172 // - have a single list with all variable names (parameters, stack locals, |
174 // context locals), followed by a list of non-Object* values containing | 173 // context locals), followed by a list of non-Object* values containing |
175 // the variables information (what kind, index, attributes) | 174 // the variables information (what kind, index, attributes) |
176 // - searching the linear list of names is fast and yields an index into the | 175 // - searching the linear list of names is fast and yields an index into the |
177 // list if the variable name is found | 176 // list if the variable name is found |
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628 } | 627 } |
629 #endif // DEBUG | 628 #endif // DEBUG |
630 | 629 |
631 | 630 |
632 // Make sure the classes get instantiated by the template system. | 631 // Make sure the classes get instantiated by the template system. |
633 template class ScopeInfo<FreeStoreAllocationPolicy>; | 632 template class ScopeInfo<FreeStoreAllocationPolicy>; |
634 template class ScopeInfo<PreallocatedStorage>; | 633 template class ScopeInfo<PreallocatedStorage>; |
635 template class ScopeInfo<ZoneListAllocationPolicy>; | 634 template class ScopeInfo<ZoneListAllocationPolicy>; |
636 | 635 |
637 } } // namespace v8::internal | 636 } } // namespace v8::internal |
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