dawn-cmake/src/tint/transform/utils/get_insertion_point.h
Antonio Maiorano c2e9bb785a Factor out GetInsertionPoint to transform/utils
This function was copy-pasted in two transforms, and will be used in the
next one I'm writing.

Bug: tint:1080
Change-Id: Ic5ffe68a7e9d00b37722e8f5faff01e9e15fa6b1
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/85262
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2022-03-30 20:11:35 +00:00

41 lines
1.6 KiB
C++

// Copyright 2022 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_TRANSFORM_UTILS_GET_INSERTION_POINT_H_
#define SRC_TINT_TRANSFORM_UTILS_GET_INSERTION_POINT_H_
#include <utility>
#include "src/tint/program_builder.h"
#include "src/tint/sem/block_statement.h"
namespace tint::transform::utils {
/// InsertionPoint is a pair of the block (`first`) within which, and the
/// statement (`second`) before or after which to insert.
using InsertionPoint =
std::pair<const sem::BlockStatement*, const ast::Statement*>;
/// For the input statement, returns the block and statement within that
/// block to insert before/after. If `stmt` is a for-loop continue statement,
/// the function returns {nullptr, nullptr} as we cannot insert before/after it.
/// @param ctx the clone context
/// @param stmt the statement to insert before or after
/// @return the insertion point
InsertionPoint GetInsertionPoint(CloneContext& ctx, const ast::Statement* stmt);
} // namespace tint::transform::utils
#endif // SRC_TINT_TRANSFORM_UTILS_GET_INSERTION_POINT_H_