549c6b8739
This also tightens up the rules around releasing DSL objects. Bug: skia:12133 Change-Id: I11a6d8fbcec58374f7b5ed5ced1c5c112e2b7cc7 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/421323 Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
112 lines
2.6 KiB
C++
112 lines
2.6 KiB
C++
/*
|
|
* Copyright 2021 Google LLC.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#ifndef SKSL_DSL_STATEMENT
|
|
#define SKSL_DSL_STATEMENT
|
|
|
|
#include "include/core/SkString.h"
|
|
#include "include/core/SkTypes.h"
|
|
#include "include/private/SkSLStatement.h"
|
|
#include "include/sksl/DSLErrorHandling.h"
|
|
|
|
#include <memory>
|
|
|
|
class GrGLSLShaderBuilder;
|
|
|
|
namespace SkSL {
|
|
|
|
class Expression;
|
|
class Statement;
|
|
|
|
namespace dsl {
|
|
|
|
class DSLBlock;
|
|
class DSLExpression;
|
|
class DSLPossibleExpression;
|
|
class DSLPossibleStatement;
|
|
class DSLVar;
|
|
|
|
class DSLStatement {
|
|
public:
|
|
DSLStatement();
|
|
|
|
DSLStatement(DSLExpression expr);
|
|
|
|
DSLStatement(DSLPossibleExpression expr, PositionInfo pos = PositionInfo());
|
|
|
|
DSLStatement(DSLPossibleStatement stmt, PositionInfo pos = PositionInfo());
|
|
|
|
DSLStatement(DSLBlock block);
|
|
|
|
DSLStatement(DSLStatement&&) = default;
|
|
|
|
~DSLStatement();
|
|
|
|
DSLStatement& operator=(DSLStatement&& other) = default;
|
|
|
|
bool valid() { return fStatement != nullptr; }
|
|
|
|
std::unique_ptr<SkSL::Statement> release() {
|
|
SkASSERT(this->valid());
|
|
return std::move(fStatement);
|
|
}
|
|
|
|
private:
|
|
DSLStatement(std::unique_ptr<SkSL::Statement> stmt);
|
|
|
|
DSLStatement(std::unique_ptr<SkSL::Expression> expr);
|
|
|
|
std::unique_ptr<SkSL::Statement> releaseIfValid() {
|
|
return std::move(fStatement);
|
|
}
|
|
|
|
std::unique_ptr<SkSL::Statement> fStatement;
|
|
|
|
friend class DSLBlock;
|
|
friend class DSLCore;
|
|
friend class DSLExpression;
|
|
friend class DSLPossibleStatement;
|
|
friend class DSLWriter;
|
|
friend DSLStatement operator,(DSLStatement left, DSLStatement right);
|
|
};
|
|
|
|
/**
|
|
* Represents a Statement which may have failed and/or have pending errors to report. Converting a
|
|
* PossibleStatement into a Statement requires PositionInfo so that any pending errors can be
|
|
* reported at the correct position.
|
|
*
|
|
* PossibleStatement is used instead of Statement in situations where it is not possible to capture
|
|
* the PositionInfo at the time of Statement construction.
|
|
*/
|
|
class DSLPossibleStatement {
|
|
public:
|
|
DSLPossibleStatement(std::unique_ptr<SkSL::Statement> stmt);
|
|
|
|
DSLPossibleStatement(DSLPossibleStatement&& other) = default;
|
|
|
|
~DSLPossibleStatement();
|
|
|
|
bool valid() { return fStatement != nullptr; }
|
|
|
|
std::unique_ptr<SkSL::Statement> release() {
|
|
return DSLStatement(std::move(*this)).release();
|
|
}
|
|
|
|
private:
|
|
std::unique_ptr<SkSL::Statement> fStatement;
|
|
|
|
friend class DSLStatement;
|
|
};
|
|
|
|
DSLStatement operator,(DSLStatement left, DSLStatement right);
|
|
|
|
} // namespace dsl
|
|
|
|
} // namespace SkSL
|
|
|
|
#endif
|