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#include "slang-writer.h"
#include "platform.h"
#include "slang-string-util.h"
// Includes to allow us to control console
// output when writing assembly dumps.
#include <fcntl.h>
#ifdef _WIN32
# include <io.h>
#else
# include <unistd.h>
#endif
#include <stdarg.h>
namespace Slang
{
static const Guid IID_ISlangWriter = SLANG_UUID_ISlangWriter;
static const Guid IID_ISlangUnknown = SLANG_UUID_ISlangUnknown;
/* !!!!!!!!!!!!!!!!!!!!!!!!! WriterHelper !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
SlangResult WriterHelper::print(const char* format, ...)
{
va_list args;
va_start(args, format);
SlangResult res = m_writer->writeVaList(format, args);
if (res == SLANG_E_NOT_IMPLEMENTED)
{
StringBuilder builder;
StringUtil::append(format, args, builder);
// Write if there is anything to write
res = (builder.Length()) ? m_writer->write(builder.Buffer(), builder.Length()) : SLANG_OK;
}
va_end(args);
return res;
}
SlangResult WriterHelper::put(const char* text)
{
return m_writer->write(text, ::strlen(text));
}
/* !!!!!!!!!!!!!!!!!!!!!!!!! BaseWriter !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
ISlangUnknown* BaseWriter::getInterface(const Guid& guid)
{
return (guid == IID_ISlangUnknown || guid == IID_ISlangWriter) ? static_cast<ISlangWriter*>(this) : nullptr;
}
/* !!!!!!!!!!!!!!!!!!!!!!!!! CallbackWriter !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
SlangResult CallbackWriter::write(const char* chars, size_t numChars)
{
if (numChars > 0)
{
// Make sure zero terminated
StringBuilder builder;
builder.Append(chars, numChars);
m_callback(builder.Buffer(), (void*)m_data);
}
return SLANG_OK;
}
/* !!!!!!!!!!!!!!!!!!!!!!!!! FileWriter !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
FileWriter::~FileWriter()
{
if ((m_flags & WriterFlag::IsUnowned) == 0)
{
fclose(m_file);
}
}
SlangResult FileWriter::writeVaList(const char* format, va_list args)
{
// http://www.cplusplus.com/reference/cstdio/vfprintf/
::vfprintf(m_file, format, args);
if (m_flags & WriterFlag::AutoFlush)
{
::fflush(m_file);
}
return SLANG_OK;
}
SlangResult FileWriter::write(const char* text, size_t numChars)
{
const size_t numWritten = ::fwrite(text, sizeof(char), numChars, m_file);
if (m_flags & WriterFlag::AutoFlush)
{
::fflush(m_file);
}
return numChars == numWritten ? SLANG_OK : SLANG_FAIL;
}
void FileWriter::flush()
{
::fflush(m_file);
}
/* static */bool FileWriter::isConsole(FILE* file)
{
const int stdoutFileDesc = _fileno(file);
return _isatty(stdoutFileDesc) != 0;
}
SlangResult FileWriter::setMode(SlangWriterMode mode)
{
switch (mode)
{
case SLANG_WRITER_MODE_BINARY:
{
#ifdef _WIN32
int stdoutFileDesc = _fileno(m_file);
_setmode(stdoutFileDesc, _O_BINARY);
return SLANG_OK;
#else
break;
#endif
}
default: break;
}
return SLANG_FAIL;
}
/* !!!!!!!!!!!!!!!!!!!!!!!!! StringWriter !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
SlangResult StringWriter::writeVaList(const char* format, va_list args)
{
StringUtil::append(format, args, *m_builder);
return SLANG_OK;
}
SlangResult StringWriter::write(const char* chars, size_t numChars)
{
if (numChars > 0)
{
m_builder->Append(chars, numChars);
}
return SLANG_OK;
}
}
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