1 /**
2 * Copyright (c) 2021-2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "stringLiteral.h"
17
18 #include "checker/TSchecker.h"
19 #include "compiler/core/ETSGen.h"
20 #include "compiler/core/pandagen.h"
21 #include "ir/astDump.h"
22 #include "ir/srcDump.h"
23
24 namespace ark::es2panda::ir {
TransformChildren(const NodeTransformer & cb,std::string_view const transformationName)25 void StringLiteral::TransformChildren([[maybe_unused]] const NodeTransformer &cb,
26 [[maybe_unused]] std::string_view const transformationName)
27 {
28 }
29
Iterate(const NodeTraverser & cb) const30 void StringLiteral::Iterate([[maybe_unused]] const NodeTraverser &cb) const {}
31
Dump(ir::AstDumper * dumper) const32 void StringLiteral::Dump(ir::AstDumper *dumper) const
33 {
34 dumper->Add({{"type", "StringLiteral"}, {"value", str_}});
35 }
36
37 static unsigned int constexpr CHAR_UPPER_HALF = 128U;
38
Dump(ir::SrcDumper * dumper) const39 void StringLiteral::Dump(ir::SrcDumper *dumper) const
40 {
41 std::string str(str_);
42 std::string escapedStr;
43 escapedStr.push_back('\"');
44 for (size_t i = 0, j = str_.Length(); i < j; ++i) {
45 // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
46 const char c = str_.Bytes()[i];
47 // check if a given character is printable
48 // the cast is necessary to avoid undefined behaviour
49 if (std::isprint(static_cast<unsigned char>(c)) != 0U || static_cast<unsigned char>(c) >= CHAR_UPPER_HALF) {
50 escapedStr.push_back(c);
51 } else {
52 escapedStr.push_back('\\');
53 if (c == '\n') {
54 escapedStr.push_back('n');
55 } else if (c == '\t') {
56 escapedStr.push_back('t');
57 } else if (c == '\v') {
58 escapedStr.push_back('v');
59 } else if (c == '\f') {
60 escapedStr.push_back('f');
61 } else if (c == '\r') {
62 escapedStr.push_back('r');
63 } else if (c == '\0') {
64 escapedStr.push_back('0');
65 } else {
66 UNREACHABLE();
67 }
68 }
69 }
70 escapedStr.push_back('\"');
71 dumper->Add(escapedStr);
72 }
73
Compile(compiler::PandaGen * pg) const74 void StringLiteral::Compile(compiler::PandaGen *pg) const
75 {
76 pg->GetAstCompiler()->Compile(this);
77 }
78
Compile(compiler::ETSGen * etsg) const79 void StringLiteral::Compile(compiler::ETSGen *etsg) const
80 {
81 etsg->GetAstCompiler()->Compile(this);
82 }
83
Check(checker::TSChecker * checker)84 checker::Type *StringLiteral::Check(checker::TSChecker *checker)
85 {
86 return checker->GetAnalyzer()->Check(this);
87 }
88
Check(checker::ETSChecker * checker)89 checker::Type *StringLiteral::Check(checker::ETSChecker *checker)
90 {
91 return checker->GetAnalyzer()->Check(this);
92 }
93
Clone(ArenaAllocator * const allocator,AstNode * const parent)94 StringLiteral *StringLiteral::Clone(ArenaAllocator *const allocator, AstNode *const parent)
95 {
96 if (auto *const clone = allocator->New<StringLiteral>(str_); clone != nullptr) {
97 if (parent != nullptr) {
98 clone->SetParent(parent);
99 }
100 clone->SetRange(Range());
101 return clone;
102 }
103
104 throw Error(ErrorType::GENERIC, "", CLONE_ALLOCATION_ERROR);
105 }
106 } // namespace ark::es2panda::ir
107