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 <binder/variable.h>
19 #include <compiler/base/lreference.h>
20 #include <compiler/core/pandagen.h>
21 #include <compiler/core/regScope.h>
22 #include <typescript/checker.h>
23 #include <ir/astDump.h>
24 #include <ir/expressions/unaryExpression.h>
25
26 namespace panda::es2panda::ir {
27
Iterate(const NodeTraverser &cb) const28 void UpdateExpression::Iterate(const NodeTraverser &cb) const
29 {
30 cb(argument_);
31 }
32
Dump(ir::AstDumper *dumper) const33 void UpdateExpression::Dump(ir::AstDumper *dumper) const
34 {
35 dumper->Add({{"type", "UpdateExpression"}, {"operator", operator_}, {"prefix", prefix_}, {"argument", argument_}});
36 }
37
Compile(compiler::PandaGen *pg) const38 void UpdateExpression::Compile(compiler::PandaGen *pg) const
39 {
40 compiler::RegScope rs(pg);
41 compiler::VReg operandReg = pg->AllocReg();
42
43 compiler::LReference lref = compiler::LReference::CreateLRef(pg, argument_, false);
44 lref.GetValue();
45
46 if (!IsPrefix()) {
47 pg->StoreAccumulator(this, operandReg);
48 pg->ToNumeric(this, operandReg);
49 }
50
51 pg->StoreAccumulator(this, operandReg);
52 pg->Unary(this, operator_, operandReg);
53
54 lref.SetValue();
55
56 if (!IsPrefix()) {
57 pg->LoadAccumulator(this, operandReg);
58 }
59 }
60
Check(checker::Checker *checker) const61 checker::Type *UpdateExpression::Check(checker::Checker *checker) const
62 {
63 checker::Type *operandType = argument_->Check(checker);
64 checker->CheckNonNullType(operandType, Start());
65
66 if (!operandType->HasTypeFlag(checker::TypeFlag::VALID_ARITHMETIC_TYPE)) {
67 checker->ThrowTypeError("An arithmetic operand must be of type 'any', 'number', 'bigint' or an enum type.",
68 Start());
69 }
70
71 checker->CheckReferenceExpression(
72 argument_, "The operand of an increment or decrement operator must be a variable or a property access",
73 "The operand of an increment or decrement operator may not be an optional property access");
74
75 return checker->GetUnaryResultType(operandType);
76 }
77
UpdateSelf(const NodeUpdater &cb, [[maybe_unused]] binder::Binder *binder)78 void UpdateExpression::UpdateSelf(const NodeUpdater &cb, [[maybe_unused]] binder::Binder *binder)
79 {
80 argument_ = std::get<ir::AstNode *>(cb(argument_))->AsExpression();
81 }
82
83 } // namespace panda::es2panda::ir
84