1 /*
2 * Copyright 2021 Google LLC
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "src/sksl/ir/SkSLPostfixExpression.h"
9
10 #include "include/sksl/SkSLErrorReporter.h"
11 #include "src/sksl/SkSLAnalysis.h"
12 #include "src/sksl/SkSLContext.h"
13 #include "src/sksl/ir/SkSLVariableReference.h"
14
15 namespace SkSL {
16
Convert(const Context & context,std::unique_ptr<Expression> base,Operator op)17 std::unique_ptr<Expression> PostfixExpression::Convert(const Context& context,
18 std::unique_ptr<Expression> base,
19 Operator op) {
20 const Type& baseType = base->type();
21 if (!baseType.isNumber()) {
22 context.fErrors->error(base->fLine, "'" + std::string(op.tightOperatorName()) +
23 "' cannot operate on '" + baseType.displayName() + "'");
24 return nullptr;
25 }
26 if (!Analysis::UpdateVariableRefKind(base.get(), VariableRefKind::kReadWrite,
27 context.fErrors)) {
28 return nullptr;
29 }
30 return PostfixExpression::Make(context, std::move(base), op);
31 }
32
Make(const Context &,std::unique_ptr<Expression> base,Operator op)33 std::unique_ptr<Expression> PostfixExpression::Make(const Context&,
34 std::unique_ptr<Expression> base,
35 Operator op) {
36 SkASSERT(base->type().isNumber());
37 SkASSERT(Analysis::IsAssignable(*base));
38 return std::make_unique<PostfixExpression>(std::move(base), op);
39 }
40
41 } // namespace SkSL
42