/// <summary>
/// Compares the memory context to each context in the given array in the manner indicated by compare flags,
/// returning an index of the first context that matches. (http://msdn.microsoft.com/en-ca/library/bb161750.aspx)
/// </summary>
/// <param name="uContextCompare"> A value from the CONTEXT_COMPARE enumeration that determines the type of comparison. </param>
/// <param name="compareToItems"> An array of references to the IDebugMemoryContext2 objects to compare against. </param>
/// <param name="compareToLength"> The number of contexts in the compareToItems array. </param>
/// <param name="foundIndex"> Returns the index of the first memory context that satisfies the comparison. </param>
/// <returns> If successful, returns S_OK; otherwise, returns an error code. </returns>
public int Compare(enum_CONTEXT_COMPARE uContextCompare, IDebugMemoryContext2[] compareToItems, uint compareToLength, out uint foundIndex)
{
foundIndex = uint.MaxValue;
try
{
enum_CONTEXT_COMPARE contextCompare = (enum_CONTEXT_COMPARE)uContextCompare;
for (uint c = 0; c < compareToLength; c++)
{
AD7MemoryAddress compareTo = compareToItems[c] as AD7MemoryAddress;
if (compareTo == null)
{
continue;
}
if (!AD7Engine.ReferenceEquals(this.m_engine, compareTo.m_engine))
{
continue;
}
bool result;
switch (contextCompare)
{
case enum_CONTEXT_COMPARE.CONTEXT_EQUAL:
result = (this.m_address == compareTo.m_address);
break;
case enum_CONTEXT_COMPARE.CONTEXT_LESS_THAN:
result = (this.m_address < compareTo.m_address);
break;
case enum_CONTEXT_COMPARE.CONTEXT_GREATER_THAN:
result = (this.m_address > compareTo.m_address);
break;
case enum_CONTEXT_COMPARE.CONTEXT_LESS_THAN_OR_EQUAL:
result = (this.m_address <= compareTo.m_address);
break;
case enum_CONTEXT_COMPARE.CONTEXT_GREATER_THAN_OR_EQUAL:
result = (this.m_address >= compareTo.m_address);
break;
// The VSNDK debug engine doesn't understand scopes or functions
case enum_CONTEXT_COMPARE.CONTEXT_SAME_SCOPE:
case enum_CONTEXT_COMPARE.CONTEXT_SAME_FUNCTION:
result = (this.m_address == compareTo.m_address);
break;
case enum_CONTEXT_COMPARE.CONTEXT_SAME_MODULE:
result = (this.m_address == compareTo.m_address);
break;
case enum_CONTEXT_COMPARE.CONTEXT_SAME_PROCESS:
result = true;
break;
default:
// A new comparison was invented that we don't support
return(VSConstants.E_NOTIMPL);
}
if (result)
{
foundIndex = c;
return(VSConstants.S_OK);
}
}
return(VSConstants.S_FALSE);
}
catch (Exception e)
{
return(EngineUtils.UnexpectedException(e));
}
}
// Compares the memory context to each context in the given array in the manner indicated by compare flags,
// returning an index of the first context that matches.
public int Compare(enum_CONTEXT_COMPARE uContextCompare, IDebugMemoryContext2[] compareToItems, uint compareToLength, out uint foundIndex)
{
foundIndex = uint.MaxValue;
enum_CONTEXT_COMPARE contextCompare = (enum_CONTEXT_COMPARE)uContextCompare;
for (uint c = 0; c < compareToLength; c++)
{
AD7MemoryAddress compareTo = compareToItems[c] as AD7MemoryAddress;
if (compareTo == null)
{
continue;
}
if (!AD7Engine.ReferenceEquals(this._engine, compareTo._engine))
{
continue;
}
bool result;
switch (contextCompare)
{
case enum_CONTEXT_COMPARE.CONTEXT_EQUAL:
result = (this._lineNo == compareTo._lineNo);
break;
case enum_CONTEXT_COMPARE.CONTEXT_LESS_THAN:
result = (this._lineNo < compareTo._lineNo);
break;
case enum_CONTEXT_COMPARE.CONTEXT_GREATER_THAN:
result = (this._lineNo > compareTo._lineNo);
break;
case enum_CONTEXT_COMPARE.CONTEXT_LESS_THAN_OR_EQUAL:
result = (this._lineNo <= compareTo._lineNo);
break;
case enum_CONTEXT_COMPARE.CONTEXT_GREATER_THAN_OR_EQUAL:
result = (this._lineNo >= compareTo._lineNo);
break;
case enum_CONTEXT_COMPARE.CONTEXT_SAME_SCOPE:
case enum_CONTEXT_COMPARE.CONTEXT_SAME_FUNCTION:
if (_frame != null)
{
result = compareTo._filename == _filename && (compareTo._lineNo + 1) >= _frame.StartLine && (compareTo._lineNo + 1) <= _frame.EndLine;
}
else if (compareTo._frame != null)
{
result = compareTo._filename == _filename && (_lineNo + 1) >= compareTo._frame.StartLine && (compareTo._lineNo + 1) <= compareTo._frame.EndLine;
}
else
{
result = this._lineNo == compareTo._lineNo && this._filename == compareTo._filename;
}
break;
case enum_CONTEXT_COMPARE.CONTEXT_SAME_MODULE:
result = _filename == compareTo._filename;
break;
case enum_CONTEXT_COMPARE.CONTEXT_SAME_PROCESS:
result = true;
break;
default:
// A new comparison was invented that we don't support
return(VSConstants.E_NOTIMPL);
}
if (result)
{
foundIndex = c;
return(VSConstants.S_OK);
}
}
return(VSConstants.S_FALSE);
}
