Class AnonymousTypeTupletizer

Provides expression tree rewrite functionality to substitute anonymous types with tuple types. This rewrite is useful to reduce dependencies on compiler-generated types, e.g. for serialization.

Inheritance

System.Object

AnonymousTypeTupletizer

Namespace: System.Linq.CompilerServices

Assembly: Nuqleon.Linq.CompilerServices.dll

Syntax

public static class AnonymousTypeTupletizer : Object

Methods

Tupletize(Expression, Expression)

Substitutes occurrences of anonymous types in the specified expression by replacing those for tuple types. Types visible in the expression result type are included in the tupletization.

Declaration

public static Expression Tupletize(Expression expression, Expression unitValue)

Parameters

Type	Name	Description
System.Linq.Expressions.Expression	expression	Expression to tupletize.
System.Linq.Expressions.Expression	unitValue	Expression representing the unit value, used for anonymous types with no properties (e.g. new { } in C#). The type of the expression can't be a value type, but you can use a boxing conversion to work around this limitation.

Returns

Type	Description
System.Linq.Expressions.Expression	Expression tree with anonymous types substituted for tuple types.

Remarks

Assignments to Visual Basic anonymous type properties will cause the rewrite to fail. Semantics of tuples are similar to those of C# anonymous types, with every property participating in equality semantics.

Tupletize(Expression, Expression, Boolean)

Substitutes occurrences of anonymous types in the specified expression by replacing those for tuple types. Types visible in the expression result type can be excluded explicitly.

Declaration

public static Expression Tupletize(Expression expression, Expression unitValue, bool excludeVisibleTypes)

Parameters

Type	Name	Description
System.Linq.Expressions.Expression	expression	Expression to tupletize.
System.Linq.Expressions.Expression	unitValue	Expression representing the unit value, used for anonymous types with no properties (e.g. new { } in C#). The type of the expression can't be a value type, but you can use a boxing conversion to work around this limitation.
System.Boolean	excludeVisibleTypes	Indicates whether to exclude visible types (i.e. occurring in the expression result type) from the tupletization rewrite.

Returns

Type	Description
System.Linq.Expressions.Expression	Expression tree with anonymous types substituted for tuple types.

Remarks

Assignments to Visual Basic anonymous type properties will cause the rewrite to fail. Semantics of tuples are similar to those of C# anonymous types, with every property participating in equality semantics.