885c1d3048
It was decided that being able to report positions from C++ code is not worth the cost of having all of these captures everywhere. Change-Id: I94981d9f780bd95df8b56198210c9cdd5f16239c Reviewed-on: https://skia-review.googlesource.com/c/skia/+/528366 Reviewed-by: John Stiles <johnstiles@google.com> Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
/*
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* Copyright 2021 Google LLC.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SKSL_DSL_CASE
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#define SKSL_DSL_CASE
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#include "include/private/SkSLDefines.h"
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#include "include/private/SkTArray.h"
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#include "include/sksl/DSLExpression.h"
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#include "include/sksl/DSLStatement.h"
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#include "include/sksl/SkSLPosition.h"
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#include <utility>
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namespace SkSL {
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namespace dsl {
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class DSLCase {
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public:
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// An empty expression means 'default:'.
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template<class... Statements>
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DSLCase(DSLExpression value, Statements... statements)
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: fValue(std::move(value)) {
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fStatements.reserve_back(sizeof...(statements));
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// in C++17, we could just do:
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// (fStatements.push_back(DSLStatement(std::move(statements)).release()), ...);
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int unused[] =
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{0,
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(static_cast<void>(fStatements.push_back(DSLStatement(std::move(statements)).release())),
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0)...};
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static_cast<void>(unused);
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}
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DSLCase(DSLExpression value, SkTArray<DSLStatement> statements,
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Position pos = {});
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DSLCase(DSLExpression value, SkSL::StatementArray statements,
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Position pos = {});
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DSLCase(DSLCase&&);
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~DSLCase();
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DSLCase& operator=(DSLCase&&);
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void append(DSLStatement stmt);
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private:
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DSLExpression fValue;
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SkSL::StatementArray fStatements;
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Position fPosition;
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friend class DSLCore;
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template<class... Cases>
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friend DSLPossibleStatement Switch(DSLExpression value, Cases... cases);
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};
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} // namespace dsl
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} // namespace SkSL
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#endif
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