internal Expression ReduceAssignment(ISupportsAssignment left, TokenKind tokenKind, Expression right)
{
IAssignableValue av = left.GetAssignableValue();
ExpressionType et = ExpressionType.Extension;
switch (tokenKind)
{
case TokenKind.Equals: return av.SetValue(this, right);
case TokenKind.PlusEquals: et = ExpressionType.Add; break;
case TokenKind.MinusEquals: et = ExpressionType.Subtract; break;
case TokenKind.MultiplyEquals: et = ExpressionType.Multiply; break;
case TokenKind.DivideEquals: et = ExpressionType.Divide; break;
case TokenKind.RemainderEquals: et = ExpressionType.Modulo; break;
}
var exprs = new List<Expression>();
var temps = new List<ParameterExpression>();
var getExpr = av.GetValue(this, exprs, temps);
exprs.Add(av.SetValue(this, DynamicExpression.Dynamic(PSBinaryOperationBinder.Get(et), typeof(object), getExpr, right)));
return Expression.Block(temps, exprs);
}
internal Expression ReduceAssignment(ISupportsAssignment left, TokenKind tokenKind, Expression right)
{
IAssignableValue assignableValue = left.GetAssignableValue();
ExpressionType extension = ExpressionType.Extension;
switch (tokenKind)
{
case TokenKind.Equals:
return assignableValue.SetValue(this, right);
case TokenKind.PlusEquals:
extension = ExpressionType.Add;
break;
case TokenKind.MinusEquals:
extension = ExpressionType.Subtract;
break;
case TokenKind.MultiplyEquals:
extension = ExpressionType.Multiply;
break;
case TokenKind.DivideEquals:
extension = ExpressionType.Divide;
break;
case TokenKind.RemainderEquals:
extension = ExpressionType.Modulo;
break;
}
List<Expression> exprs = new List<Expression>();
List<ParameterExpression> temps = new List<ParameterExpression>();
Expression expression = assignableValue.GetValue(this, exprs, temps);
exprs.Add(assignableValue.SetValue(this, Expression.Dynamic(PSBinaryOperationBinder.Get(extension, true, false), typeof(object), expression, right)));
return Expression.Block((IEnumerable<ParameterExpression>) temps, (IEnumerable<Expression>) exprs);
}
