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6e77b47ed9
This CL catches up the internals (along with a few error messages) to say `initializer` instead of `constructor. Bug: tint:1600 Change-Id: I8e56572c310d77da1130380bdd32b334f27c8e46 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/106462 Reviewed-by: Antonio Maiorano <amaiorano@google.com> Auto-Submit: Dan Sinclair <dsinclair@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Antonio Maiorano <amaiorano@google.com>
94 lines
3.0 KiB
C++
94 lines
3.0 KiB
C++
// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_TINT_AST_VARIABLE_H_
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#define SRC_TINT_AST_VARIABLE_H_
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#include <utility>
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#include <vector>
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#include "src/tint/ast/access.h"
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#include "src/tint/ast/address_space.h"
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#include "src/tint/ast/attribute.h"
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#include "src/tint/ast/binding_attribute.h"
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#include "src/tint/ast/expression.h"
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#include "src/tint/ast/group_attribute.h"
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// Forward declarations
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namespace tint::ast {
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class LocationAttribute;
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class Type;
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} // namespace tint::ast
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namespace tint::ast {
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/// Variable is the base class for Var, Let, Const, Override and Parameter.
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///
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/// An instance of this class represents one of five constructs in WGSL: "var" declaration, "let"
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/// declaration, "override" declaration, "const" declaration, or formal parameter to a function.
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///
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/// @see https://www.w3.org/TR/WGSL/#value-decls
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class Variable : public Castable<Variable, Node> {
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public:
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/// Constructor
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/// @param pid the identifier of the program that owns this node
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/// @param nid the unique node identifier
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/// @param source the variable source
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/// @param sym the variable symbol
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/// @param type the declared variable type
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/// @param initializer the initializer expression
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/// @param attributes the variable attributes
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Variable(ProgramID pid,
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NodeID nid,
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const Source& source,
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const Symbol& sym,
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const ast::Type* type,
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const Expression* initializer,
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utils::VectorRef<const Attribute*> attributes);
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/// Move constructor
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Variable(Variable&&);
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/// Destructor
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~Variable() override;
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/// @returns true if the variable has both group and binding attributes
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bool HasBindingPoint() const {
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return ast::GetAttribute<ast::BindingAttribute>(attributes) != nullptr &&
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ast::GetAttribute<ast::GroupAttribute>(attributes) != nullptr;
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}
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/// @returns the kind of the variable, which can be used in diagnostics
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/// e.g. "var", "let", "const", etc
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virtual const char* Kind() const = 0;
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/// The variable symbol
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const Symbol symbol;
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/// The declared variable type. This is null if the type is inferred, e.g.:
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/// let f = 1.0;
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/// var i = 1;
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const ast::Type* const type;
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/// The initializer expression or nullptr if none set
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const Expression* const initializer;
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/// The attributes attached to this variable
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const utils::Vector<const Attribute*, 2> attributes;
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};
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} // namespace tint::ast
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#endif // SRC_TINT_AST_VARIABLE_H_
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