本文整理汇总了C#中DynamicMetaObject.BindConvert方法的典型用法代码示例。如果您正苦于以下问题：C# DynamicMetaObject.BindConvert方法的具体用法？C# DynamicMetaObject.BindConvert怎么用？C# DynamicMetaObject.BindConvert使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DynamicMetaObject的用法示例。
在下文中一共展示了DynamicMetaObject.BindConvert方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: MakeEnumeratorOperation
private static DynamicMetaObject MakeEnumeratorOperation(PythonOperationBinder operation, DynamicMetaObject self) {
if (self.GetLimitType() == typeof(string)) {
self = self.Restrict(self.GetLimitType());
return new DynamicMetaObject(
Expression.Call(
typeof(PythonOps).GetMethod("StringEnumerator"),
self.Expression
),
self.Restrictions
);
} else if (self.GetLimitType() == typeof(PythonDictionary)) {
self = self.Restrict(self.GetLimitType());
return new DynamicMetaObject(
Expression.Call(
typeof(PythonOps).GetMethod("MakeDictionaryKeyEnumerator"),
self.Expression
),
self.Restrictions
);
} else if (self.Value is IEnumerable ||
typeof(IEnumerable).IsAssignableFrom(self.GetLimitType())) {
self = self.Restrict(self.GetLimitType());
return new DynamicMetaObject(
Expression.Call(
Expression.Convert(
self.Expression,
typeof(IEnumerable)
),
typeof(IEnumerable).GetMethod("GetEnumerator")
),
self.Restrictions
);
} else if (self.Value is IEnumerator || // check for COM object (and fast check when we have values)
typeof(IEnumerator).IsAssignableFrom(self.GetLimitType())) { // check if we don't have a value
DynamicMetaObject ieres = self.Restrict(self.GetLimitType());
#if !SILVERLIGHT
if (ComOps.IsComObject(self.Value)) {
ieres = new DynamicMetaObject(
self.Expression,
ieres.Restrictions.Merge(
BindingRestrictions.GetExpressionRestriction(
Ast.TypeIs(self.Expression, typeof(IEnumerator))
)
)
);
}
#endif
return ieres;
}
ParameterExpression tmp = Ast.Parameter(typeof(IEnumerator), "enum");
DynamicMetaObject res = self.BindConvert(new ConversionBinder(BinderState.GetBinderState(operation), typeof(IEnumerator), ConversionResultKind.ExplicitTry));
return new DynamicMetaObject(
Expression.Block(
new[] { tmp },
Ast.Condition(
Ast.NotEqual(
Ast.Assign(tmp, res.Expression),
AstUtils.Constant(null)
),
tmp,
Ast.Call(
typeof(PythonOps).GetMethod("ThrowTypeErrorForBadIteration"),
BinderState.GetCodeContext(operation),
self.Expression
)
)
),
res.Restrictions
);
}示例2: Bind
/// <summary>
/// Performs the binding of the dynamic convert operation.
/// </summary>
/// <param name="target">The target of the dynamic convert operation.</param>
/// <param name="args">An array of arguments of the dynamic convert operation.</param>
/// <returns>The <see cref="DynamicMetaObject"/> representing the result of the binding.</returns>
public sealed override DynamicMetaObject Bind(DynamicMetaObject target, DynamicMetaObject[] args) {
ContractUtils.RequiresNotNull(target, "target");
ContractUtils.Requires(args == null || args.Length == 0, "args");
return target.BindConvert(this);
}