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4964d9bc20
With the updated WGSL grammar the `@align` attribute takes an expression instead of a value. This CL updates the internal data structures to store an expression instead of an integer value. The parser still only parses integers, they're just turned into `IntLiteralExpressions` at the moment. Bug: tint:1633 Change-Id: If34901798ed6ceaced354bc06ae9b6df875b700e Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99980 Reviewed-by: Ben Clayton <bclayton@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
// Copyright 2021 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_STRUCT_MEMBER_ALIGN_ATTRIBUTE_H_
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#define SRC_TINT_AST_STRUCT_MEMBER_ALIGN_ATTRIBUTE_H_
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#include <stddef.h>
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#include <string>
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#include "src/tint/ast/attribute.h"
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#include "src/tint/ast/expression.h"
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namespace tint::ast {
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/// A struct member align attribute
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class StructMemberAlignAttribute final : public Castable<StructMemberAlignAttribute, Attribute> {
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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 src the source of this node
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/// @param align the align value expression
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StructMemberAlignAttribute(ProgramID pid,
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NodeID nid,
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const Source& src,
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const ast::Expression* align);
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~StructMemberAlignAttribute() override;
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/// @returns the WGSL name for the attribute
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std::string Name() const override;
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/// Clones this node and all transitive child nodes using the `CloneContext`
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/// `ctx`.
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/// @param ctx the clone context
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/// @return the newly cloned node
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const StructMemberAlignAttribute* Clone(CloneContext* ctx) const override;
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/// The align value expression
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const ast::Expression* const align;
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};
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} // namespace tint::ast
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#endif // SRC_TINT_AST_STRUCT_MEMBER_ALIGN_ATTRIBUTE_H_
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