SkSLErrorReporter.h

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/*
 * 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_ERROR_REPORTER
#define SKSL_ERROR_REPORTER
 
#include "include/core/SkTypes.h"
 
#include <string_view>
 
namespace SkSL {
 
class Position;
 
/**
 * Class which is notified in the event of an error.
 */
class ErrorReporter {
public:
    ErrorReporter() {}
 
    virtual ~ErrorReporter() {}
 
    void error(Position position, std::string_view msg);
 
    std::string_view source() const { return fSource; }
 
    void setSource(std::string_view source) { fSource = source; }
 
    int errorCount() const {
        return fErrorCount;
    }
 
    void resetErrorCount() {
        fErrorCount = 0;
    }
 
protected:
    /**
     * Called when an error is reported.
     */
    virtual void handleError(std::string_view msg, Position position) = 0;
 
private:
    Position position(int offset) const;
 
    std::string_view fSource;
    int fErrorCount = 0;
};
 
/**
 * Error reporter for tests that need an SkSL context; aborts immediately if an error is reported.
 */
class TestingOnly_AbortErrorReporter : public ErrorReporter {
public:
    void handleError(std::string_view msg, Position pos) override;
};
 
} // namespace SkSL
 
#endif