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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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45 // Dummy constructor. This constructor doesn't set up the map | 45 // Dummy constructor. This constructor doesn't set up the map |
46 // properly so don't use it unless you have a good reason. | 46 // properly so don't use it unless you have a good reason. |
47 explicit VariableMap(bool gotta_love_static_overloading); | 47 explicit VariableMap(bool gotta_love_static_overloading); |
48 | 48 |
49 virtual ~VariableMap(); | 49 virtual ~VariableMap(); |
50 | 50 |
51 Variable* Declare(Scope* scope, | 51 Variable* Declare(Scope* scope, |
52 Handle<String> name, | 52 Handle<String> name, |
53 VariableMode mode, | 53 VariableMode mode, |
54 bool is_valid_lhs, | 54 bool is_valid_lhs, |
55 Variable::Kind kind); | 55 Variable::Kind kind, |
56 InitializationFlag); | |
Jakob Kummerow
2011/10/31 12:44:34
s/InitializationFlag/InitializationFlag initializa
Steven
2011/10/31 14:28:29
Done.
| |
56 | 57 |
57 Variable* Lookup(Handle<String> name); | 58 Variable* Lookup(Handle<String> name); |
58 }; | 59 }; |
59 | 60 |
60 | 61 |
61 // The dynamic scope part holds hash maps for the variables that will | 62 // The dynamic scope part holds hash maps for the variables that will |
62 // be looked up dynamically from within eval and with scopes. The objects | 63 // be looked up dynamically from within eval and with scopes. The objects |
63 // are allocated on-demand from Scope::NonLocal to avoid wasting memory | 64 // are allocated on-demand from Scope::NonLocal to avoid wasting memory |
64 // and setup time for scopes that don't need them. | 65 // and setup time for scopes that don't need them. |
65 class DynamicScopePart : public ZoneObject { | 66 class DynamicScopePart : public ZoneObject { |
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124 // outer scope. Only possible for function scopes; at most one variable. | 125 // outer scope. Only possible for function scopes; at most one variable. |
125 Variable* DeclareFunctionVar(Handle<String> name, VariableMode mode); | 126 Variable* DeclareFunctionVar(Handle<String> name, VariableMode mode); |
126 | 127 |
127 // Declare a parameter in this scope. When there are duplicated | 128 // Declare a parameter in this scope. When there are duplicated |
128 // parameters the rightmost one 'wins'. However, the implementation | 129 // parameters the rightmost one 'wins'. However, the implementation |
129 // expects all parameters to be declared and from left to right. | 130 // expects all parameters to be declared and from left to right. |
130 void DeclareParameter(Handle<String> name, VariableMode mode); | 131 void DeclareParameter(Handle<String> name, VariableMode mode); |
131 | 132 |
132 // Declare a local variable in this scope. If the variable has been | 133 // Declare a local variable in this scope. If the variable has been |
133 // declared before, the previously declared variable is returned. | 134 // declared before, the previously declared variable is returned. |
134 Variable* DeclareLocal(Handle<String> name, VariableMode mode); | 135 Variable* DeclareLocal(Handle<String> name, |
136 VariableMode mode, | |
137 InitializationFlag init_flag); | |
135 | 138 |
136 // Declare an implicit global variable in this scope which must be a | 139 // Declare an implicit global variable in this scope which must be a |
137 // global scope. The variable was introduced (possibly from an inner | 140 // global scope. The variable was introduced (possibly from an inner |
138 // scope) by a reference to an unresolved variable with no intervening | 141 // scope) by a reference to an unresolved variable with no intervening |
139 // with statements or eval calls. | 142 // with statements or eval calls. |
140 Variable* DeclareGlobal(Handle<String> name); | 143 Variable* DeclareGlobal(Handle<String> name); |
141 | 144 |
142 // Create a new unresolved variable. | 145 // Create a new unresolved variable. |
143 VariableProxy* NewUnresolved(Handle<String> name, | 146 VariableProxy* NewUnresolved(Handle<String> name, |
144 int position = RelocInfo::kNoPosition); | 147 int position = RelocInfo::kNoPosition); |
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542 } | 545 } |
543 | 546 |
544 void SetDefaults(ScopeType type, | 547 void SetDefaults(ScopeType type, |
545 Scope* outer_scope, | 548 Scope* outer_scope, |
546 Handle<ScopeInfo> scope_info); | 549 Handle<ScopeInfo> scope_info); |
547 }; | 550 }; |
548 | 551 |
549 } } // namespace v8::internal | 552 } } // namespace v8::internal |
550 | 553 |
551 #endif // V8_SCOPES_H_ | 554 #endif // V8_SCOPES_H_ |
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