// Parses a text-based expression for evaluation.
// The engine sample only supports locals and parameters so the only task here is to check the names in those collections.
int IDebugExpressionContext2.ParseText(string pszCode,
enum_PARSEFLAGS dwFlags,
uint nRadix,
out IDebugExpression2 ppExpr,
out string pbstrError,
out uint pichError)
{
pbstrError = "";
pichError = 0;
ppExpr = null;
if (_parameters != null)
{
foreach (var currVariable in _parameters)
{
if (String.CompareOrdinal(currVariable.Expression, pszCode) == 0)
{
ppExpr = new UncalculatedAD7Expression(this, currVariable.Expression, true);
return(VSConstants.S_OK);
}
}
}
if (_locals != null)
{
foreach (var currVariable in _locals)
{
if (String.CompareOrdinal(currVariable.Expression, pszCode) == 0)
{
ppExpr = new UncalculatedAD7Expression(this, currVariable.Expression, true);
return(VSConstants.S_OK);
}
}
}
string errorMsg;
if (!_stackFrame.TryParseText(pszCode, out errorMsg))
{
pbstrError = "Error: " + errorMsg;
pichError = (uint)pbstrError.Length;
}
ppExpr = new UncalculatedAD7Expression(this, pszCode);
return(VSConstants.S_OK);
}
