BinaryBlockWriter (object)¶

バージョン 1.12.0 で追加.

The BinaryBlockWriter provides a block based hierarchical binary file writing layer on top of the lower level BinaryWriter object.

参考

BinaryBlockReader, BinaryBlockIO

/*
** Example: BinaryBlockWriter
*/

require FileIO;
  
operator entry() {

  FilePath path = FilePath('${TEMP}/binaryBlockWriter.bin').expandEnvVars();
  {
    BinaryBlockWriter blockWriter(path.string());
    blockWriter.setNumBlocks(3);
  
    BinaryBlockWriter section1Writer = blockWriter.beginWriteBlock('section1');
  
    String text = "some text";
    SInt32 textLength = text.length();
  
    report('section1:' + text);
    section1Writer.write(textLength.data, textLength.dataSize);
    section1Writer.write(text.data, text.dataSize);
  
    BinaryBlockWriter section2Writer = blockWriter.beginWriteBlock('section2');
    Float64 floats[];
    floats.resize(10);
    for(SInt32 i=0;i<floats.size();i++)
      floats[i] = Float64(i) * 17 + 1;
    SInt32 floatsSize = floats.size();
  
    report('section2:' + floats);
    section2Writer.write(floatsSize.data, floatsSize.dataSize);
    section2Writer.write(floats.data, floats.dataSize);
  
  
    BinaryBlockWriter section3Writer = blockWriter.beginWriteBlock('section3', 3);
    BinaryBlockWriter section3subSection1Writer = section3Writer.beginWriteBlock('subSection1');
    SInt32 ints[];
    ints.resize(10);
    for(SInt32 i=0;i<ints.size();i++)
      ints[i] = SInt32(i) * 17 + 1;
    SInt32 intsSize = ints.size();
  
    report('section3:' + ints);
    section2Writer.write(intsSize.data, intsSize.dataSize);
    section2Writer.write(ints.data, ints.dataSize);
  
    BinaryBlockWriter section3subSection2Writer = section3Writer.beginWriteBlock('subSection2');
    BinaryBlockWriter section3subSection3Writer = section3Writer.beginWriteBlock('subSection3');
  
    report('Binary file written.');
  }
  
}

/*
** Output:
(stdin):21:5: error: must use parentheses to call methods
(stdin):21:5: error: must use parentheses to call methods
(stdin):22:5: error: must use parentheses to call methods
(stdin):22:5: error: must use parentheses to call methods
(stdin):32:5: error: must use parentheses to call methods
(stdin):32:5: error: must use parentheses to call methods
(stdin):33:5: error: must use parentheses to call methods
(stdin):33:5: error: must use parentheses to call methods
(stdin):45:5: error: must use parentheses to call methods
(stdin):45:5: error: must use parentheses to call methods
(stdin):46:5: error: must use parentheses to call methods
(stdin):46:5: error: must use parentheses to call methods


*/

Methods¶

	BinaryBlockWriter ( in BinaryBlockWriter other )
	BinaryBlockWriter ( in String filePath )
	BinaryBlockWriter ( out BinaryWriter writer )
	BinaryBlockWriter ( out BinaryWriter writer, in UInt32 numBlocks )
	BinaryBlockWriter ()
BinaryBlockWriter	beginWriteBlock ! ( in String name )
BinaryBlockWriter	beginWriteBlock ! ( in String name, in UInt32 numSubBlocks )
BinaryBlockWriter	clone ? ()
	close ! ()
BinaryWriter	getWriter ? ()
	setNumBlocks ! ( in UInt32 numBlocks )
	write ! ( in Data data, in UInt64 dataSize )
	~BinaryBlockWriter ()