public static Binding From(ConstantExpression expression)
{
var ctor = (Func <object, Binding>)BindingCtors.For(
typeof(ConstantBinding <>),
expression.Type);
return(ctor(expression.Value));
}
public static Binding From(ParameterExpression expression)
{
var ctor = (Func <Binding>)BindingCtors.For(
typeof(ParameterBinding <>),
expression.Type);
return(ctor());
}
private static Func <object, object, object, Binding> GetBindingCtor(BinaryExpression expression)
{
GetBindingTypeDefinition(expression, out var bindingType, out var bindingTypeArity);
var ctor = bindingTypeArity == 3 ?
BindingCtors.For(bindingType, expression.Left.Type, expression.Right.Type, expression.Type) :
BindingCtors.For(bindingType, expression.Left.Type, expression.Right.Type);
return((Func <object, object, object, Binding>)ctor);
}
public static Binding From(UnaryExpression expression, Func <Expression, Binding> from)
{
var ctor = (Func <object, object, Binding>)BindingCtors.For(
GetBindingTypeDefinition(expression),
expression.Operand.Type,
expression.Type);
return(ctor(
from(expression.Operand),
Operators.For(expression)));
}
public static Binding From(MemberExpression expression, Func <Expression, Binding> from)
{
var ctor = (Func <object, object, object, Binding>)BindingCtors.For(
GetBindingType(expression),
expression.Expression.Type,
expression.Type);
return(ctor(
from(expression.Expression),
expression.Member.Name,
Accessors.For(expression)));
}