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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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 virtual ~AstString() {} | 45 virtual ~AstString() {} |
46 | 46 |
47 virtual int length() const = 0; | 47 virtual int length() const = 0; |
48 bool IsEmpty() const { return length() == 0; } | 48 bool IsEmpty() const { return length() == 0; } |
49 | 49 |
50 // Puts the string into the V8 heap. | 50 // Puts the string into the V8 heap. |
51 virtual void Internalize(Isolate* isolate) = 0; | 51 virtual void Internalize(Isolate* isolate) = 0; |
52 | 52 |
53 // This function can be called after internalizing. | 53 // This function can be called after internalizing. |
54 V8_INLINE Handle<String> string() const { | 54 V8_INLINE Handle<String> string() const { |
55 ASSERT(!string_.is_null()); | 55 DCHECK(!string_.is_null()); |
56 return string_; | 56 return string_; |
57 } | 57 } |
58 | 58 |
59 protected: | 59 protected: |
60 // This is null until the string is internalized. | 60 // This is null until the string is internalized. |
61 Handle<String> string_; | 61 Handle<String> string_; |
62 }; | 62 }; |
63 | 63 |
64 | 64 |
65 class AstRawString : public AstString { | 65 class AstRawString : public AstString { |
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170 | 170 |
171 bool BooleanValue() const; | 171 bool BooleanValue() const; |
172 | 172 |
173 void Internalize(Isolate* isolate); | 173 void Internalize(Isolate* isolate); |
174 | 174 |
175 // Can be called after Internalize has been called. | 175 // Can be called after Internalize has been called. |
176 V8_INLINE Handle<Object> value() const { | 176 V8_INLINE Handle<Object> value() const { |
177 if (type_ == STRING) { | 177 if (type_ == STRING) { |
178 return string_->string(); | 178 return string_->string(); |
179 } | 179 } |
180 ASSERT(!value_.is_null()); | 180 DCHECK(!value_.is_null()); |
181 return value_; | 181 return value_; |
182 } | 182 } |
183 | 183 |
184 private: | 184 private: |
185 friend class AstValueFactory; | 185 friend class AstValueFactory; |
186 | 186 |
187 enum Type { | 187 enum Type { |
188 STRING, | 188 STRING, |
189 SYMBOL, | 189 SYMBOL, |
190 NUMBER, | 190 NUMBER, |
191 SMI, | 191 SMI, |
192 BOOLEAN, | 192 BOOLEAN, |
193 STRING_ARRAY, | 193 STRING_ARRAY, |
194 NULL_TYPE, | 194 NULL_TYPE, |
195 UNDEFINED, | 195 UNDEFINED, |
196 THE_HOLE | 196 THE_HOLE |
197 }; | 197 }; |
198 | 198 |
199 explicit AstValue(const AstRawString* s) : type_(STRING) { string_ = s; } | 199 explicit AstValue(const AstRawString* s) : type_(STRING) { string_ = s; } |
200 | 200 |
201 explicit AstValue(const char* name) : type_(SYMBOL) { symbol_name_ = name; } | 201 explicit AstValue(const char* name) : type_(SYMBOL) { symbol_name_ = name; } |
202 | 202 |
203 explicit AstValue(double n) : type_(NUMBER) { number_ = n; } | 203 explicit AstValue(double n) : type_(NUMBER) { number_ = n; } |
204 | 204 |
205 AstValue(Type t, int i) : type_(t) { | 205 AstValue(Type t, int i) : type_(t) { |
206 ASSERT(type_ == SMI); | 206 DCHECK(type_ == SMI); |
207 smi_ = i; | 207 smi_ = i; |
208 } | 208 } |
209 | 209 |
210 explicit AstValue(bool b) : type_(BOOLEAN) { bool_ = b; } | 210 explicit AstValue(bool b) : type_(BOOLEAN) { bool_ = b; } |
211 | 211 |
212 explicit AstValue(ZoneList<const AstRawString*>* s) : type_(STRING_ARRAY) { | 212 explicit AstValue(ZoneList<const AstRawString*>* s) : type_(STRING_ARRAY) { |
213 strings_ = s; | 213 strings_ = s; |
214 } | 214 } |
215 | 215 |
216 explicit AstValue(Type t) : type_(t) { | 216 explicit AstValue(Type t) : type_(t) { |
217 ASSERT(t == NULL_TYPE || t == UNDEFINED || t == THE_HOLE); | 217 DCHECK(t == NULL_TYPE || t == UNDEFINED || t == THE_HOLE); |
218 } | 218 } |
219 | 219 |
220 Type type_; | 220 Type type_; |
221 | 221 |
222 // Uninternalized value. | 222 // Uninternalized value. |
223 union { | 223 union { |
224 const AstRawString* string_; | 224 const AstRawString* string_; |
225 double number_; | 225 double number_; |
226 int smi_; | 226 int smi_; |
227 bool bool_; | 227 bool bool_; |
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335 const AstRawString* name##_string_; | 335 const AstRawString* name##_string_; |
336 STRING_CONSTANTS(F) | 336 STRING_CONSTANTS(F) |
337 #undef F | 337 #undef F |
338 }; | 338 }; |
339 | 339 |
340 } } // namespace v8::internal | 340 } } // namespace v8::internal |
341 | 341 |
342 #undef STRING_CONSTANTS | 342 #undef STRING_CONSTANTS |
343 | 343 |
344 #endif // V8_AST_VALUE_FACTORY_H_ | 344 #endif // V8_AST_VALUE_FACTORY_H_ |
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