private void buildFixedComponents() {
		fixedComps = new DataTypeComponent[3];
		fixedComps[0] = new ReadOnlyDataTypeComponent(new DWordDataType(), this, 4, 0,
			SIGNATURE_OFFSET, "signature", null);
		fixedComps[1] = new ReadOnlyDataTypeComponent(new DWordDataType(), this, 4, 1,
			VB_TABLE_OFFSET_OFFSET, "offset", "offset of vbtable within class");
		fixedComps[2] = new ReadOnlyDataTypeComponent(new DWordDataType(), this, 4, 2,
			CONSTRUCTOR_DISP_OFFSET_OFFSET, "cdOffset", "constructor displacement offset");
	}
Creates a dynamic Complete Object Locator data type.
@param dtm the data type manager for this data type.
Ghidra/Features/Base/src/main/java/ghidra/app/util/datatype/microsoft/RTTI4DataType.java