1 // Copyright 2017 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef V8_OBJECTS_JS_REGEXP_INL_H_
6 #define V8_OBJECTS_JS_REGEXP_INL_H_
7
8 #include "src/objects/js-regexp.h"
9
10 #include "src/objects/js-array-inl.h"
11 #include "src/objects/objects-inl.h" // Needed for write barriers
12 #include "src/objects/smi.h"
13 #include "src/objects/string.h"
14
15 // Has to be the last include (doesn't have include guards):
16 #include "src/objects/object-macros.h"
17
18 namespace v8 {
19 namespace internal {
20
21 #include "torque-generated/src/objects/js-regexp-tq-inl.inc"
22
23 TQ_OBJECT_CONSTRUCTORS_IMPL(JSRegExp)
TQ_OBJECT_CONSTRUCTORS_IMPL(JSRegExpResult)24 TQ_OBJECT_CONSTRUCTORS_IMPL(JSRegExpResult)
25 TQ_OBJECT_CONSTRUCTORS_IMPL(JSRegExpResultIndices)
26 TQ_OBJECT_CONSTRUCTORS_IMPL(JSRegExpResultWithIndices)
27
28 ACCESSORS(JSRegExp, last_index, Object, kLastIndexOffset)
29
30 JSRegExp::Type JSRegExp::type_tag() const {
31 Object data = this->data();
32 if (data.IsUndefined()) return JSRegExp::NOT_COMPILED;
33 Smi smi = Smi::cast(FixedArray::cast(data).get(kTagIndex));
34 return static_cast<JSRegExp::Type>(smi.value());
35 }
36
capture_count()37 int JSRegExp::capture_count() const {
38 switch (type_tag()) {
39 case ATOM:
40 return 0;
41 case EXPERIMENTAL:
42 case IRREGEXP:
43 return Smi::ToInt(DataAt(kIrregexpCaptureCountIndex));
44 default:
45 UNREACHABLE();
46 }
47 }
48
max_register_count()49 int JSRegExp::max_register_count() const {
50 CHECK_EQ(type_tag(), IRREGEXP);
51 return Smi::ToInt(DataAt(kIrregexpMaxRegisterCountIndex));
52 }
53
atom_pattern()54 String JSRegExp::atom_pattern() const {
55 DCHECK_EQ(type_tag(), ATOM);
56 return String::cast(DataAt(JSRegExp::kAtomPatternIndex));
57 }
58
source()59 String JSRegExp::source() const {
60 return String::cast(TorqueGeneratedClass::source());
61 }
62
flags()63 JSRegExp::Flags JSRegExp::flags() const {
64 Smi smi = Smi::cast(TorqueGeneratedClass::flags());
65 return Flags(smi.value());
66 }
67
EscapedPattern()68 String JSRegExp::EscapedPattern() {
69 DCHECK(this->source().IsString());
70 return String::cast(source());
71 }
72
capture_name_map()73 Object JSRegExp::capture_name_map() {
74 DCHECK(TypeSupportsCaptures(type_tag()));
75 Object value = DataAt(kIrregexpCaptureNameMapIndex);
76 DCHECK_NE(value, Smi::FromInt(JSRegExp::kUninitializedValue));
77 return value;
78 }
79
set_capture_name_map(Handle<FixedArray> capture_name_map)80 void JSRegExp::set_capture_name_map(Handle<FixedArray> capture_name_map) {
81 if (capture_name_map.is_null()) {
82 SetDataAt(JSRegExp::kIrregexpCaptureNameMapIndex, Smi::zero());
83 } else {
84 SetDataAt(JSRegExp::kIrregexpCaptureNameMapIndex, *capture_name_map);
85 }
86 }
87
DataAt(int index)88 Object JSRegExp::DataAt(int index) const {
89 DCHECK(type_tag() != NOT_COMPILED);
90 return FixedArray::cast(data()).get(index);
91 }
92
SetDataAt(int index,Object value)93 void JSRegExp::SetDataAt(int index, Object value) {
94 DCHECK(type_tag() != NOT_COMPILED);
95 // Only implementation data can be set this way.
96 DCHECK_GE(index, kFirstTypeSpecificIndex);
97 FixedArray::cast(data()).set(index, value);
98 }
99
HasCompiledCode()100 bool JSRegExp::HasCompiledCode() const {
101 if (type_tag() != IRREGEXP) return false;
102 Smi uninitialized = Smi::FromInt(kUninitializedValue);
103 #ifdef DEBUG
104 DCHECK(DataAt(kIrregexpLatin1CodeIndex).IsCodeT() ||
105 DataAt(kIrregexpLatin1CodeIndex) == uninitialized);
106 DCHECK(DataAt(kIrregexpUC16CodeIndex).IsCodeT() ||
107 DataAt(kIrregexpUC16CodeIndex) == uninitialized);
108 DCHECK(DataAt(kIrregexpLatin1BytecodeIndex).IsByteArray() ||
109 DataAt(kIrregexpLatin1BytecodeIndex) == uninitialized);
110 DCHECK(DataAt(kIrregexpUC16BytecodeIndex).IsByteArray() ||
111 DataAt(kIrregexpUC16BytecodeIndex) == uninitialized);
112 #endif // DEBUG
113 return (DataAt(kIrregexpLatin1CodeIndex) != uninitialized ||
114 DataAt(kIrregexpUC16CodeIndex) != uninitialized);
115 }
116
DiscardCompiledCodeForSerialization()117 void JSRegExp::DiscardCompiledCodeForSerialization() {
118 DCHECK(HasCompiledCode());
119 Smi uninitialized = Smi::FromInt(kUninitializedValue);
120 SetDataAt(kIrregexpLatin1CodeIndex, uninitialized);
121 SetDataAt(kIrregexpUC16CodeIndex, uninitialized);
122 SetDataAt(kIrregexpLatin1BytecodeIndex, uninitialized);
123 SetDataAt(kIrregexpUC16BytecodeIndex, uninitialized);
124 }
125
126 } // namespace internal
127 } // namespace v8
128
129 #include "src/objects/object-macros-undef.h"
130
131 #endif // V8_OBJECTS_JS_REGEXP_INL_H_
132