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41e4d9a34c
This CL updates the clang format files to have a single shared format between Dawn and Tint. The major changes are tabs are 4 spaces, lines are 100 columns and namespaces are not indented. Bug: dawn:1339 Change-Id: I4208742c95643998d9fd14e77a9cc558071ded39 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/87603 Commit-Queue: Dan Sinclair <dsinclair@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com>
59 lines
2.3 KiB
C++
59 lines
2.3 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_STRUCT_MEMBER_OFFSET_ATTRIBUTE_H_
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#define SRC_TINT_AST_STRUCT_MEMBER_OFFSET_ATTRIBUTE_H_
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#include <string>
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#include "src/tint/ast/attribute.h"
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namespace tint::ast {
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/// A struct member offset attribute
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/// @note The WGSL spec removed the `@offset(n)` attribute for `@size(n)`
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/// and `@align(n)` in https://github.com/gpuweb/gpuweb/pull/1447. However
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/// this attribute is kept because the SPIR-V reader has to deal with absolute
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/// offsets, and transforming these to size / align is complex and can be done
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/// in a number of ways. The Resolver is responsible for consuming the size and
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/// align attributes and transforming these into absolute offsets. It is
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/// trivial for the Resolver to handle `@offset(n)` or `@size(n)` /
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/// `@align(n)` attributes, so this is what we do, keeping all the layout
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/// logic in one place.
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class StructMemberOffsetAttribute final : public Castable<StructMemberOffsetAttribute, 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 src the source of this node
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/// @param offset the offset value
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StructMemberOffsetAttribute(ProgramID pid, const Source& src, uint32_t offset);
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~StructMemberOffsetAttribute() 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 StructMemberOffsetAttribute* Clone(CloneContext* ctx) const override;
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/// The offset value
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const uint32_t offset;
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};
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} // namespace tint::ast
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#endif // SRC_TINT_AST_STRUCT_MEMBER_OFFSET_ATTRIBUTE_H_
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