1 /**
2 * Copyright (c) 2021 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 "updateExpression.h"
17
18 #include <compiler/base/lreference.h>
19 #include <compiler/core/pandagen.h>
20 #include <typescript/checker.h>
21 #include <ir/astDump.h>
22
23 namespace panda::es2panda::ir {
24
Iterate(const NodeTraverser & cb) const25 void UpdateExpression::Iterate(const NodeTraverser &cb) const
26 {
27 cb(argument_);
28 }
29
Dump(ir::AstDumper * dumper) const30 void UpdateExpression::Dump(ir::AstDumper *dumper) const
31 {
32 dumper->Add({{"type", "UpdateExpression"}, {"operator", operator_}, {"prefix", prefix_}, {"argument", argument_}});
33 }
34
Compile(compiler::PandaGen * pg) const35 void UpdateExpression::Compile(compiler::PandaGen *pg) const
36 {
37 compiler::RegScope rs(pg);
38 compiler::VReg operandReg = pg->AllocReg();
39
40 compiler::LReference lref = compiler::LReference::CreateLRef(pg, argument_, false);
41 lref.GetValue();
42
43 if (!IsPrefix()) {
44 pg->StoreAccumulator(this, operandReg);
45 pg->ToNumeric(this, operandReg);
46 }
47
48 pg->StoreAccumulator(this, operandReg);
49 pg->Unary(this, operator_, operandReg);
50
51 lref.SetValue();
52
53 if (!IsPrefix()) {
54 pg->LoadAccumulator(this, operandReg);
55 }
56 }
57
Check(checker::Checker * checker) const58 checker::Type *UpdateExpression::Check(checker::Checker *checker) const
59 {
60 checker::Type *operandType = argument_->Check(checker);
61 checker->CheckNonNullType(operandType, Start());
62
63 if (!operandType->HasTypeFlag(checker::TypeFlag::VALID_ARITHMETIC_TYPE)) {
64 checker->ThrowTypeError("An arithmetic operand must be of type 'any', 'number', 'bigint' or an enum type.",
65 Start());
66 }
67
68 checker->CheckReferenceExpression(
69 argument_, "The operand of an increment or decrement operator must be a variable or a property access",
70 "The operand of an increment or decrement operator may not be an optional property access");
71
72 return checker->GetUnaryResultType(operandType);
73 }
74
UpdateSelf(const NodeUpdater & cb,binder::Binder * binder)75 void UpdateExpression::UpdateSelf(const NodeUpdater &cb, [[maybe_unused]] binder::Binder *binder)
76 {
77 argument_ = std::get<ir::AstNode *>(cb(argument_))->AsExpression();
78 }
79
80 } // namespace panda::es2panda::ir
81