protected EXPR CreateWraps(EXPRBOUNDLAMBDA anonmeth)
{
EXPR sequence = null;
for (Symbol sym = anonmeth.ArgumentScope().firstChild; sym != null; sym = sym.nextChild)
{
if (!sym.IsLocalVariableSymbol())
{
continue;
}
LocalVariableSymbol local = sym.AsLocalVariableSymbol();
if (local.isThis)
{
continue;
}
Debug.Assert(anonmeth.OptionalBody != null);
EXPR create = GenerateParameter(local.name.Text, local.GetType());
local.wrap = GetExprFactory().CreateWrapNoAutoFree(anonmeth.OptionalBody.OptionalScopeSymbol, create);
EXPR save = GetExprFactory().CreateSave(local.wrap);
if (sequence == null)
{
sequence = save;
}
else
{
sequence = GetExprFactory().CreateSequence(sequence, save);
}
}
return sequence;
}
protected EXPR DestroyWraps(EXPRBOUNDLAMBDA anonmeth, EXPR sequence)
{
for (Symbol sym = anonmeth.ArgumentScope(); sym != null; sym = sym.nextChild)
{
if (!sym.IsLocalVariableSymbol())
{
continue;
}
LocalVariableSymbol local = sym.AsLocalVariableSymbol();
if (local.isThis)
{
continue;
}
Debug.Assert(local.wrap != null);
Debug.Assert(anonmeth.OptionalBody != null);
EXPR freeWrap = GetExprFactory().CreateWrap(anonmeth.OptionalBody.OptionalScopeSymbol, local.wrap);
sequence = GetExprFactory().CreateReverseSequence(sequence, freeWrap);
}
return sequence;
}
protected EXPR RewriteLambdaParameters(EXPRBOUNDLAMBDA anonmeth)
{
Debug.Assert(anonmeth != null);
// new ParameterExpression[2] {Parameter(typeof(type1), name1), Parameter(typeof(type2), name2)}
EXPR paramArrayInitializerArgs = null;
EXPR paramArrayInitializerArgsTail = paramArrayInitializerArgs;
for (Symbol sym = anonmeth.ArgumentScope(); sym != null; sym = sym.nextChild)
{
if (!sym.IsLocalVariableSymbol())
{
continue;
}
LocalVariableSymbol local = sym.AsLocalVariableSymbol();
if (local.isThis)
{
continue;
}
GetExprFactory().AppendItemToList(local.wrap, ref paramArrayInitializerArgs, ref paramArrayInitializerArgsTail);
}
return GenerateParamsArray(paramArrayInitializerArgs, PredefinedType.PT_PARAMETEREXPRESSION);
}