public override void Compile(MethodEmitter emitter)
{
bool inverse = false;
string methodName;
switch (m_Operator)
{
case StringOperator.Equal:
methodName = "Equals";
break;
case StringOperator.NotEqual:
methodName = "Equals";
inverse = true;
break;
case StringOperator.Contains:
methodName = "Contains";
break;
case StringOperator.StartsWith:
methodName = "StartsWith";
break;
case StringOperator.EndsWith:
methodName = "EndsWith";
break;
default:
throw new InvalidOperationException("Invalid string comparison operator.");
}
if (m_IgnoreCase || methodName == "Equals")
{
Type type = m_IgnoreCase ? typeof(InsensitiveStringHelpers) : typeof(string);
emitter.BeginCall(
type.GetMethod(
methodName,
BindingFlags.Public | BindingFlags.Static,
null,
new[]
{
typeof(string),
typeof(string)
},
null));
emitter.Chain(m_Property);
m_Value.Load(emitter);
emitter.FinishCall();
}
else
{
Label notNull = emitter.CreateLabel();
Label moveOn = emitter.CreateLabel();
LocalBuilder temp = emitter.AcquireTemp(m_Property.Type);
emitter.Chain(m_Property);
emitter.StoreLocal(temp);
emitter.LoadLocal(temp);
emitter.BranchIfTrue(notNull);
emitter.Load(false);
emitter.Pop();
emitter.Branch(moveOn);
emitter.MarkLabel(notNull);
emitter.LoadLocal(temp);
emitter.BeginCall(
typeof(string).GetMethod(
methodName,
BindingFlags.Public | BindingFlags.Instance,
null,
new[]
{
typeof(string)
},
null));
m_Value.Load(emitter);
emitter.FinishCall();
emitter.MarkLabel(moveOn);
}
if (m_Not != inverse)
{
emitter.LogicalNot();
}
}
public override void Compile( MethodEmitter emitter )
{
bool inverse = false;
string methodName;
switch ( m_Operator )
{
case StringOperator.Equal:
methodName = "Equals";
break;
case StringOperator.NotEqual:
methodName = "Equals";
inverse = true;
break;
case StringOperator.Contains:
methodName = "Contains";
break;
case StringOperator.StartsWith:
methodName = "StartsWith";
break;
case StringOperator.EndsWith:
methodName = "EndsWith";
break;
default:
throw new InvalidOperationException( "Invalid string comparison operator." );
}
if ( m_IgnoreCase || methodName == "Equals" )
{
Type type = ( m_IgnoreCase ? typeof( Insensitive ) : typeof( String ) );
emitter.BeginCall(
type.GetMethod(
methodName,
BindingFlags.Public | BindingFlags.Static,
null,
new Type[]
{
typeof( string ),
typeof( string )
},
null
)
);
emitter.Chain( m_Property );
m_Value.Load( emitter );
emitter.FinishCall();
}
else
{
Label notNull = emitter.CreateLabel();
Label moveOn = emitter.CreateLabel();
LocalBuilder temp = emitter.AcquireTemp( m_Property.Type );
emitter.Chain( m_Property );
emitter.StoreLocal( temp );
emitter.LoadLocal( temp );
emitter.BranchIfTrue( notNull );
emitter.Load( false );
emitter.Pop();
emitter.Branch( moveOn );
emitter.MarkLabel( notNull );
emitter.LoadLocal( temp );
emitter.BeginCall(
typeof( string ).GetMethod(
methodName,
BindingFlags.Public | BindingFlags.Instance,
null,
new Type[]
{
typeof( string )
},
null
)
);
m_Value.Load( emitter );
emitter.FinishCall();
emitter.MarkLabel( moveOn );
}
if ( m_Not != inverse )
emitter.LogicalNot();
}