Summary
TypeConstraint is the abstract base for constraints
that take a Type as their expected value.
- Namespace
- TCLite
.Constraints - Interfaces
- Base Types
-
- object
- Constraint
- Expected
Value Constraint <Type>
- Derived Types
graph BT
Type-->Base0["ExpectedValueConstraint<Type>"]
Base0-->Base1["Constraint"]
click Base1 "/tc-lite/api/TCLite.Constraints/Constraint"
Base1-->Base2["object"]
Type-.->Interface0["IConstraint"]
click Interface0 "/tc-lite/api/TCLite.Constraints/IConstraint"
Type-.->Interface1["IResolveConstraint"]
click Interface1 "/tc-lite/api/TCLite.Constraints/IResolveConstraint"
Type["TypeConstraint"]
class Type type-node
Derived0["InstanceOfTypeConstraint"]-->Type
click Derived0 "/tc-lite/api/TCLite.Constraints/InstanceOfTypeConstraint"
Derived1["ExactTypeConstraint"]-->Type
click Derived1 "/tc-lite/api/TCLite.Constraints/ExactTypeConstraint"
Syntax
public abstract class TypeConstraint : ExpectedValueConstraint<Type>, IConstraint,
IResolveConstraintConstructors
| Name | Summary |
|---|---|
| TypeConstraint |
Construct a TypeConstraint for a given Type |
Properties
| Name | Value | Summary |
|---|---|---|
| ActualType | Type | |
| And | ConstraintExpression |
Returns a ConstraintExpression by appending And
to the current constraint.
Inherited from Constraint
|
| Arguments | object[] |
Arguments provided to this Constraint, for use in
formatting the description.
Inherited from Constraint
|
| Builder | ConstraintBuilder |
A ConstraintBuilder holding this constraint. If not null
the constraint is under construction.
Inherited from Constraint
|
| Description | string |
The Description of what this constraint tests, for
use in messages and in the ConstraintResult.
Inherited from Constraint
|
| DisplayName | string |
The display name of this Constraint for use by ToString().
The default value is the name of the constraint with
trailing "Constraint" removed. Derived classes may set
this to another name in their constructors.
Inherited from Constraint
|
| ExpectedType | Type |
The expected Type used by the constraint
|
| Or | ConstraintExpression |
Returns a ConstraintExpression by appending Or
to the current constraint.
Inherited from Constraint
|
| With | ConstraintExpression |
Returns a ConstraintExpression by appending And
to the current constraint.
Inherited from Constraint
|
Methods
| Name | Value | Summary |
|---|---|---|
| ApplyConstraint |
ConstraintResult |
Applies the constraint to an ActualValueDelegate that returns
the value to be tested. The default implementation simply evaluates
the delegate but derived classes may override it to provide for
delayed processing.
Inherited from Constraint
|
| ApplyConstraint |
ConstraintResult |
Applies the constraint to an actual value, returning a ConstraintResult.
|
| ApplyConstraint |
ConstraintResult |
Test whether the constraint is satisfied by a given reference.
The default implementation simply dereferences the value but
derived classes may override it to provide for delayed processing.
Inherited from Constraint
|
| ApplyTo |
ConstraintResult |
Validates the ActualValueDelegate and applies the constraint
to the value it returns.
Inherited from Constraint
|
| ApplyTo |
ConstraintResult |
Validates the actual value argument and applies the constraint
to it, returning a ConstraintResult.
Inherited from Constraint
|
| ApplyTo |
ConstraintResult |
Validates the actual value argument and applies the constraint
to it, returning a ConstraintResult.
Inherited from Constraint
|
| Get |
string |
Returns the string representation of this constraint
Inherited from Constraint
|
| Matches |
bool | |
| ToString |
string |
Default override of ToString returns the constraint DisplayName
followed by any arguments within angle brackets.
Inherited from Constraint
|
| ValidateActualValue |
void |
Validate the actual value argument based on what the
particular constraint allows. The default
implementation does nothing, implying that the constraint
can handle any Type as well as null values.
Inherited from Constraint
|