| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SKSL_VARIABLE |
| #define SKSL_VARIABLE |
| |
| #include "SkSLModifiers.h" |
| #include "SkSLPosition.h" |
| #include "SkSLSymbol.h" |
| #include "SkSLType.h" |
| |
| namespace SkSL { |
| |
| /** |
| * Represents a variable, whether local, global, or a function parameter. This represents the |
| * variable itself (the storage location), which is shared between all VariableReferences which |
| * read or write that storage location. |
| */ |
| struct Variable : public Symbol { |
| enum Storage { |
| kGlobal_Storage, |
| kLocal_Storage, |
| kParameter_Storage |
| }; |
| |
| Variable(Position position, Modifiers modifiers, std::string name, const Type& type, |
| Storage storage) |
| : INHERITED(position, kVariable_Kind, std::move(name)) |
| , fModifiers(modifiers) |
| , fType(type) |
| , fStorage(storage) |
| , fIsReadFrom(false) |
| , fIsWrittenTo(false) {} |
| |
| virtual std::string description() const override { |
| return fModifiers.description() + fType.fName + " " + fName; |
| } |
| |
| mutable Modifiers fModifiers; |
| const Type& fType; |
| const Storage fStorage; |
| |
| mutable bool fIsReadFrom; |
| mutable bool fIsWrittenTo; |
| |
| typedef Symbol INHERITED; |
| }; |
| |
| } // namespace SkSL |
| |
| #endif |