| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SKSL_SWITCHSTATEMENT |
| #define SKSL_SWITCHSTATEMENT |
| |
| #include "src/sksl/ir/SkSLStatement.h" |
| #include "src/sksl/ir/SkSLSwitchCase.h" |
| |
| namespace SkSL { |
| |
| class SymbolTable; |
| |
| /** |
| * A 'switch' statement. |
| */ |
| struct SwitchStatement : public Statement { |
| SwitchStatement(int offset, bool isStatic, std::unique_ptr<Expression> value, |
| std::vector<std::unique_ptr<SwitchCase>> cases, |
| const std::shared_ptr<SymbolTable> symbols) |
| : INHERITED(offset, kSwitch_Kind) |
| , fIsStatic(isStatic) |
| , fValue(std::move(value)) |
| , fSymbols(std::move(symbols)) |
| , fCases(std::move(cases)) {} |
| |
| int nodeCount() const override { |
| int result = 1 + fValue->nodeCount(); |
| for (const auto& c : fCases) { |
| result += c->nodeCount(); |
| } |
| return result; |
| } |
| |
| std::unique_ptr<Statement> clone() const override { |
| std::vector<std::unique_ptr<SwitchCase>> cloned; |
| for (const auto& s : fCases) { |
| cloned.push_back(std::unique_ptr<SwitchCase>((SwitchCase*) s->clone().release())); |
| } |
| return std::unique_ptr<Statement>(new SwitchStatement(fOffset, fIsStatic, fValue->clone(), |
| std::move(cloned), fSymbols)); |
| } |
| |
| String description() const override { |
| String result; |
| if (fIsStatic) { |
| result += "@"; |
| } |
| result += String::printf("switch (%s) {\n", fValue->description().c_str()); |
| for (const auto& c : fCases) { |
| result += c->description(); |
| } |
| result += "}"; |
| return result; |
| } |
| |
| bool fIsStatic; |
| std::unique_ptr<Expression> fValue; |
| // it's important to keep fCases defined after (and thus destroyed before) fSymbols, because |
| // destroying statements can modify reference counts in symbols |
| const std::shared_ptr<SymbolTable> fSymbols; |
| std::vector<std::unique_ptr<SwitchCase>> fCases; |
| |
| typedef Statement INHERITED; |
| }; |
| |
| } // namespace |
| |
| #endif |