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static private InstanceFieldNotDefinedForType ( object p0, object p1 ) : |
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| p0 | object | |
| p1 | object | |
| Результат | ||
/// <summary>
/// Creates a <see cref="MemberExpression"/> accessing a field.
/// </summary>
/// <param name="expression">The containing object of the field. This can be null for static fields.</param>
/// <param name="fieldName">The field to be accessed.</param>
/// <returns>The created <see cref="MemberExpression"/>.</returns>
public static MemberExpression Field(Expression expression, string fieldName)
{
RequiresCanRead(expression, "expression");
// bind to public names first
var fi = expression.Type.GetField(fieldName, _publicFlags) ?? expression.Type.GetField(fieldName, _nonPublicFlags);
if (fi == null)
{
throw Error.InstanceFieldNotDefinedForType(fieldName, expression.Type);
}
return(Field(expression, fi));
}
/// <summary>
/// Creates a <see cref="MemberExpression"/> accessing a field.
/// </summary>
/// <param name="expression">The containing object of the field. This can be null for static fields.</param>
/// <param name="fieldName">The field to be accessed.</param>
/// <returns>The created <see cref="MemberExpression"/>.</returns>
public static MemberExpression Field(Expression expression, string fieldName)
{
RequiresCanRead(expression, nameof(expression));
ContractUtils.RequiresNotNull(fieldName, nameof(fieldName));
// bind to public names first
FieldInfo fi = expression.Type.GetField(fieldName, BindingFlags.Instance | BindingFlags.Public | BindingFlags.IgnoreCase | BindingFlags.FlattenHierarchy)
?? expression.Type.GetField(fieldName, BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.IgnoreCase | BindingFlags.FlattenHierarchy);
if (fi == null)
{
throw Error.InstanceFieldNotDefinedForType(fieldName, expression.Type);
}
return(Expression.Field(expression, fi));
}
public static ConditionalMemberCSharpExpression ConditionalField(Expression expression, string fieldName)
{
RequiresCanRead(expression, nameof(expression));
ContractUtils.RequiresNotNull(fieldName, nameof(fieldName));
var type = expression.Type.GetNonNullReceiverType();
var field = type.GetField(fieldName, BindingFlags.IgnoreCase | BindingFlags.Instance | BindingFlags.Public | BindingFlags.FlattenHierarchy);
if (field == null)
{
field = type.GetField(fieldName, BindingFlags.IgnoreCase | BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.FlattenHierarchy);
}
if (field == null)
{
throw LinqError.InstanceFieldNotDefinedForType(fieldName, type);
}
return(ConditionalField(expression, field));
}
