Class ExpressionExtensions

Class implementing the necessary infrastructure to use IExpressionMetadata.

Inheritance

Object

ExpressionExtensions

Inherited Members

Object.Equals(Object)

Object.Equals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Object.ReferenceEquals(Object, Object)

Object.ToString()

Namespace: Mangrove.MetricSetSyntaxTree.ExpressionMetadata

Assembly: MetricSetSyntaxTree.dll

Syntax

public static class ExpressionExtensions

Remarks

For more details about this see this RFC.

Methods

HasMetadata<T>(ColumnReference)

Check fIf cr contains a metadata of type implementing IExpressionMetadata.

Declaration

public static bool HasMetadata<T>(this ColumnReference cr)
    where T : class, IExpressionMetadata

Parameters

Type	Name	Description
ColumnReference	cr

Returns

Type	Description
Boolean

Type Parameters

Name	Description
T

RemoveMetadata<T>(ColumnReference)

This method removes metadata from the ColumnReference provided if the metadata is present.

Declaration

public static ColumnReference RemoveMetadata<T>(this ColumnReference cr)
    where T : class, IExpressionMetadata

Parameters

Type	Name	Description
ColumnReference	cr

Returns

Type	Description
ColumnReference

Type Parameters

Name	Description
T

RevertName(ColumnReference)

Using PreserveNameMetadata, rename cr to the name speficied in that metadata. If PreserveNameMetadata is not present, just return cr back.

Declaration

public static ColumnReference RevertName(this ColumnReference cr)

Parameters

Type	Name	Description
ColumnReference	cr

Returns

Type	Description
ColumnReference

TryGetMetadata<T>(ColumnReference, out T)

If cr contains a metadata of type implementing IExpressionMetadata, return true and parse the metadata into metadata.

Declaration

public static bool TryGetMetadata<T>(this ColumnReference cr, out T metadata)
    where T : class, IExpressionMetadata

Parameters

Type	Name	Description
ColumnReference	cr
T	metadata

Returns

Type	Description
Boolean

Type Parameters

Name	Description
T

WithMetadata<T>(ColumnReference, T)

Add to the . If already contains metadata of type , the value will be overwritten with the newly provided .

Declaration

public static ColumnReference WithMetadata<T>(this ColumnReference cr, T metadata)
    where T : class, IExpressionMetadata

Parameters

Type	Name	Description
ColumnReference	cr
T	metadata

Returns

Type	Description
ColumnReference

Type Parameters

Name	Description
T