1 /*
2 * Copyright (c) 2021-2022 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 "literals.h"
17
18 #include <compiler/core/pandagen.h>
19 #include <ir/expressions/taggedTemplateExpression.h>
20 #include <ir/expressions/templateLiteral.h>
21
22 namespace panda::es2panda::compiler {
23
24 // Literals
25
GetTemplateObject(PandaGen * pg,const ir::TaggedTemplateExpression * lit)26 void Literals::GetTemplateObject(PandaGen *pg, const ir::TaggedTemplateExpression *lit)
27 {
28 RegScope rs(pg);
29 VReg templateArg = pg->AllocReg();
30 VReg indexReg = pg->AllocReg();
31 VReg rawArr = pg->AllocReg();
32 VReg cookedArr = pg->AllocReg();
33
34 const ir::TemplateLiteral *templateLit = lit->Quasi();
35
36 pg->CreateEmptyArray(templateLit);
37 pg->StoreAccumulator(templateLit, rawArr);
38
39 pg->CreateEmptyArray(templateLit);
40 pg->StoreAccumulator(templateLit, cookedArr);
41
42 size_t elemIndex = 0;
43
44 for (const auto *element : templateLit->Quasis()) {
45 pg->LoadAccumulatorInt(element, elemIndex);
46 pg->StoreAccumulator(element, indexReg);
47
48 pg->LoadAccumulatorString(element, element->Raw());
49 pg->DefineFieldByValue(element, rawArr, indexReg);
50 // Generate ldundefined when element is escape error
51 if (element->EscapeError()) {
52 pg->LoadConst(element, compiler::Constant::JS_UNDEFINED);
53 } else {
54 pg->LoadAccumulatorString(element, element->Cooked());
55 }
56 pg->DefineFieldByValue(element, cookedArr, indexReg);
57
58 elemIndex++;
59 }
60
61 pg->CreateEmptyArray(lit);
62 pg->StoreAccumulator(lit, templateArg);
63
64 elemIndex = 0;
65 pg->LoadAccumulatorInt(lit, elemIndex);
66 pg->StoreAccumulator(lit, indexReg);
67
68 pg->LoadAccumulator(lit, rawArr);
69 pg->DefineFieldByValue(lit, templateArg, indexReg);
70
71 elemIndex++;
72 pg->LoadAccumulatorInt(lit, elemIndex);
73 pg->StoreAccumulator(lit, indexReg);
74
75 pg->LoadAccumulator(lit, cookedArr);
76 pg->DefineFieldByValue(lit, templateArg, indexReg);
77
78 pg->GetTemplateObject(lit, templateArg);
79 }
80
81 } // namespace panda::es2panda::compiler
82