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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_BUILTINS_BUILTINS_REGEXP_GEN_H_
6 : #define V8_BUILTINS_BUILTINS_REGEXP_GEN_H_
7 :
8 : #include "src/base/optional.h"
9 : #include "src/code-stub-assembler.h"
10 : #include "src/message-template.h"
11 :
12 : namespace v8 {
13 : namespace internal {
14 :
15 : class RegExpBuiltinsAssembler : public CodeStubAssembler {
16 : public:
17 : explicit RegExpBuiltinsAssembler(compiler::CodeAssemblerState* state)
18 2016 : : CodeStubAssembler(state) {}
19 :
20 : void BranchIfFastRegExp(
21 : Node* const context, Node* const object, Node* const map,
22 : base::Optional<DescriptorIndexAndName> additional_property_to_check,
23 : Label* const if_isunmodified, Label* const if_ismodified);
24 :
25 : // Create and initialize a RegExp object.
26 : TNode<Object> RegExpCreate(TNode<Context> context,
27 : TNode<Context> native_context,
28 : TNode<Object> regexp_string, TNode<String> flags);
29 :
30 : TNode<Object> RegExpCreate(TNode<Context> context, TNode<Map> initial_map,
31 : TNode<Object> regexp_string, TNode<String> flags);
32 :
33 : protected:
34 : TNode<Smi> SmiZero();
35 : TNode<IntPtrT> IntPtrZero();
36 :
37 : // Allocate a RegExpResult with the given length (the number of captures,
38 : // including the match itself), index (the index where the match starts),
39 : // and input string.
40 : TNode<JSRegExpResult> AllocateRegExpResult(TNode<Context> context,
41 : TNode<Smi> length,
42 : TNode<Smi> index,
43 : TNode<String> input);
44 :
45 : TNode<Object> FastLoadLastIndex(TNode<JSRegExp> regexp);
46 : TNode<Object> SlowLoadLastIndex(TNode<Context> context, TNode<Object> regexp);
47 : TNode<Object> LoadLastIndex(TNode<Context> context, TNode<Object> regexp,
48 : bool is_fastpath);
49 :
50 : void FastStoreLastIndex(Node* regexp, Node* value);
51 : void SlowStoreLastIndex(Node* context, Node* regexp, Node* value);
52 : void StoreLastIndex(Node* context, Node* regexp, Node* value,
53 : bool is_fastpath);
54 :
55 : // Loads {var_string_start} and {var_string_end} with the corresponding
56 : // offsets into the given {string_data}.
57 : void GetStringPointers(Node* const string_data, Node* const offset,
58 : Node* const last_index, Node* const string_length,
59 : String::Encoding encoding, Variable* var_string_start,
60 : Variable* var_string_end);
61 :
62 : // Low level logic around the actual call into pattern matching code.
63 : TNode<HeapObject> RegExpExecInternal(TNode<Context> context,
64 : TNode<JSRegExp> regexp,
65 : TNode<String> string,
66 : TNode<Number> last_index,
67 : TNode<RegExpMatchInfo> match_info);
68 :
69 : TNode<JSRegExpResult> ConstructNewResultFromMatchInfo(
70 : TNode<Context> context, TNode<JSReceiver> maybe_regexp,
71 : TNode<RegExpMatchInfo> match_info, TNode<String> string);
72 :
73 : TNode<RegExpMatchInfo> RegExpPrototypeExecBodyWithoutResult(
74 : TNode<Context> context, TNode<JSReceiver> maybe_regexp,
75 : TNode<String> string, Label* if_didnotmatch, const bool is_fastpath);
76 : TNode<HeapObject> RegExpPrototypeExecBody(TNode<Context> context,
77 : TNode<JSReceiver> maybe_regexp,
78 : TNode<String> string,
79 : const bool is_fastpath);
80 :
81 : Node* ThrowIfNotJSReceiver(Node* context, Node* maybe_receiver,
82 : MessageTemplate msg_template,
83 : char const* method_name);
84 :
85 : // Analogous to BranchIfFastRegExp, for use in asserts.
86 : TNode<BoolT> IsFastRegExp(SloppyTNode<Context> context,
87 : SloppyTNode<Object> object);
88 :
89 : void BranchIfFastRegExp(Node* const context, Node* const object,
90 : Label* const if_isunmodified,
91 : Label* const if_ismodified);
92 :
93 : // Performs fast path checks on the given object itself, but omits prototype
94 : // checks.
95 : Node* IsFastRegExpNoPrototype(Node* const context, Node* const object);
96 : TNode<BoolT> IsFastRegExpWithOriginalExec(TNode<Context> context,
97 : TNode<JSRegExp> object);
98 : Node* IsFastRegExpNoPrototype(Node* const context, Node* const object,
99 : Node* const map);
100 :
101 : void BranchIfFastRegExpResult(Node* const context, Node* const object,
102 : Label* if_isunmodified, Label* if_ismodified);
103 :
104 : Node* FlagsGetter(Node* const context, Node* const regexp, bool is_fastpath);
105 :
106 : TNode<Int32T> FastFlagGetter(TNode<JSRegExp> regexp, JSRegExp::Flag flag);
107 : TNode<Int32T> SlowFlagGetter(TNode<Context> context, TNode<Object> regexp,
108 : JSRegExp::Flag flag);
109 : TNode<Int32T> FlagGetter(TNode<Context> context, TNode<Object> regexp,
110 : JSRegExp::Flag flag, bool is_fastpath);
111 :
112 : void FlagGetter(Node* context, Node* receiver, JSRegExp::Flag flag,
113 : int counter, const char* method_name);
114 :
115 : TNode<BoolT> IsRegExp(TNode<Context> context, TNode<Object> maybe_receiver);
116 :
117 : Node* RegExpInitialize(Node* const context, Node* const regexp,
118 : Node* const maybe_pattern, Node* const maybe_flags);
119 :
120 : Node* RegExpExec(Node* context, Node* regexp, Node* string);
121 :
122 : Node* AdvanceStringIndex(Node* const string, Node* const index,
123 : Node* const is_unicode, bool is_fastpath);
124 :
125 : void RegExpPrototypeMatchBody(Node* const context, Node* const regexp,
126 : TNode<String> const string,
127 : const bool is_fastpath);
128 :
129 : void RegExpPrototypeSearchBodyFast(Node* const context, Node* const regexp,
130 : Node* const string);
131 : void RegExpPrototypeSearchBodySlow(Node* const context, Node* const regexp,
132 : Node* const string);
133 :
134 : void RegExpPrototypeSplitBody(Node* const context, Node* const regexp,
135 : TNode<String> const string,
136 : TNode<Smi> const limit);
137 :
138 : Node* ReplaceGlobalCallableFastPath(Node* context, Node* regexp, Node* string,
139 : Node* replace_callable);
140 : Node* ReplaceSimpleStringFastPath(Node* context, Node* regexp,
141 : TNode<String> string,
142 : TNode<String> replace_string);
143 : };
144 :
145 : class RegExpMatchAllAssembler : public RegExpBuiltinsAssembler {
146 : public:
147 : explicit RegExpMatchAllAssembler(compiler::CodeAssemblerState* state)
148 : : RegExpBuiltinsAssembler(state) {}
149 :
150 : TNode<Object> CreateRegExpStringIterator(TNode<Context> native_context,
151 : TNode<Object> regexp,
152 : TNode<String> string,
153 : TNode<Int32T> global,
154 : TNode<Int32T> full_unicode);
155 : void Generate(TNode<Context> context, TNode<Context> native_context,
156 : TNode<Object> receiver, TNode<Object> maybe_string);
157 : };
158 :
159 : } // namespace internal
160 : } // namespace v8
161 :
162 : #endif // V8_BUILTINS_BUILTINS_REGEXP_GEN_H_
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