windows-xp/Source/XPSP1/NT/multimedia/directx/dmusic/dmscript/engerror.cpp

// Copyright (c) 1999 Microsoft Corporation. All rights reserved.
//
// Implementation of CActiveScriptError.
//

#include "stdinc.h"
#include "enginc.h"
#include "engerror.h"
#include "oleaut.h"

CActiveScriptError::CActiveScriptError(HRESULT hr, Lexer &lexer, const char *pszDescription)
  : m_scode(hr),
	m_wstrDescription(pszDescription),
	m_pwszSource(NULL),
	m_ulLineNumber(lexer.line() - 1), // line is reported zero-based from IActiveScriptError
	m_lCharacterPosition(lexer.column() - 1) // character position is reported zero-based from IActiveScriptError
{
	assert(pszDescription && lexer.line() > 0 && lexer.column() > 0);

	// build the near text from the lexer's current position to the end of the line
	for (const WCHAR *pwsz = lexer.m_p; *pwsz && *pwsz != '\n' && *pwsz != '\r'; ++pwsz)
	{}

	m_wstrSourceLine.Assign(lexer.m_p, pwsz - lexer.m_p);

	// fill in the source text based on hresult
	if (hr == DMUS_E_AUDIOVBSCRIPT_SYNTAXERROR)
	{
		m_pwszSource = L"Microsoft AudioVBScript syntax error";
	}
	else if (hr == DMUS_E_AUDIOVBSCRIPT_RUNTIMEERROR)
	{
		m_pwszSource = L"Microsoft AudioVBScript runtime error";
	}
	else
	{
		assert(hr == DMUS_E_AUDIOVBSCRIPT_OPERATIONFAILURE);
		m_pwszSource = L"Microsoft AudioVBScript operation failure";
	}
}

STDMETHODIMP
CActiveScriptError::GetExceptionInfo(
		/* [out] */ EXCEPINFO *pexcepinfo)
{
	V_INAME(CActiveScriptError::GetExceptionInfo);
	V_PTR_WRITE(pexcepinfo, *pexcepinfo);

	Zero(pexcepinfo);
	pexcepinfo->scode = m_scode;

	if (m_wstrDescription)
		pexcepinfo->bstrDescription = DMS_SysAllocString(g_fUseOleAut, m_wstrDescription);
	if (!pexcepinfo->bstrDescription)
		return E_OUTOFMEMORY;

	pexcepinfo->bstrSource = DMS_SysAllocString(g_fUseOleAut, m_pwszSource);
	if (!pexcepinfo->bstrSource)
		return E_OUTOFMEMORY;

	return S_OK;
}

STDMETHODIMP
CActiveScriptError::GetSourcePosition(
		/* [out] */ DWORD *pdwSourceContext,
		/* [out] */ ULONG *pulLineNumber,
		/* [out] */ LONG *plCharacterPosition)
{
	V_INAME(CActiveScriptError::GetSourcePosition);
	V_PTR_WRITE_OPT(pdwSourceContext, *pdwSourceContext);
	V_PTR_WRITE(pulLineNumber, *pulLineNumber);
	V_PTR_WRITE(plCharacterPosition, *plCharacterPosition);

	assert(!pdwSourceContext);
	*pulLineNumber = m_ulLineNumber;
	*plCharacterPosition = m_lCharacterPosition;
	return S_OK;
}

STDMETHODIMP
CActiveScriptError::GetSourceLineText(
		/* [out] */ BSTR *pbstrSourceLine)
{
	V_INAME(CActiveScriptError::GetSourceLineText);
	V_PTR_WRITE(pbstrSourceLine, *pbstrSourceLine);

	*pbstrSourceLine = NULL;
	if (m_wstrSourceLine)
		*pbstrSourceLine = DMS_SysAllocString(g_fUseOleAut, m_wstrSourceLine);
	if (!*pbstrSourceLine)
		return E_OUTOFMEMORY;

	return S_OK;
}