SkSLOutputStream.h

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/*
 * Copyright 2017 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
#ifndef SKSL_OUTPUTSTREAM
#define SKSL_OUTPUTSTREAM
 
#include "include/core/SkTypes.h"
 
#include <cstdarg>
#include <cstddef>
#include <cstdint>
#include <string>
 
namespace SkSL {
 
class OutputStream {
public:
    virtual bool isValid() const {
        return true;
    }
 
    virtual void write8(uint8_t b) = 0;
 
    void write16(uint16_t i) {
        this->write8((uint8_t) i);
        this->write8((uint8_t) (i >> 8));
    }
 
    void write32(uint32_t i) {
        this->write8((uint8_t) i);
        this->write8((uint8_t) (i >> 8));
        this->write8((uint8_t) (i >> 16));
        this->write8((uint8_t) (i >> 24));
    }
 
    virtual void writeText(const char* s) = 0;
 
    virtual void write(const void* s, size_t size) = 0;
 
    void writeString(const std::string& s);
 
    void printf(const char format[], ...) SK_PRINTF_LIKE(2, 3);
 
    void appendVAList(const char format[], va_list args) SK_PRINTF_LIKE(2, 0);
 
    virtual ~OutputStream() {}
 
private:
    static const int kBufferSize = 1024;
};
 
}  // namespace SkSL
 
#endif