Mercury.Interpreting.InterpreterAction< T, U > Class Template Reference

Interpreter action with a safer return type. More...

Inheritance diagram for Mercury.Interpreting.InterpreterAction< T, U >:

Public Member Functions
	InterpreterAction (string name, Tuple< int, int > arity, ArgumentType[] argtypes, bool allowswild=true)
	Initializes a new instance of the InterpreterAction{T,U} class. See Mercury.Interpreting.InterpreterAction{T} for better explanation. More...
abstract U	Evaluate (Argument[] arguments, RecursiveEval< T > eval, InterpreterContext< T > context)
	Evaluates the action. More...
override object	Invoke (Argument[] arguments, RecursiveEval< T > eval, InterpreterContext< T > context)
	Evaluates the arguments. It is guaranteed to have a valid number of arguments (specified by Arity) and that no argument is null UNLESS the flag Mercury.Interpreting.ArgumentType contains Lazy or Null. More...
Public Member Functions inherited from Mercury.Interpreting.InterpreterAction< T >
	InterpreterAction (string name, Tuple< int, int > arity, ArgumentType[] argtypes, bool allowswild=true)
	Initializes a new instance of the InterpreterAction{T} class. The target application can inherit from this class, but rather one of Mercury.Interpreting.InterpreterAction{T,U} or Mercury.Interpreting.GenericAction{T} is recommended to derive. Conditions: More...

Additional Inherited Members
Protected Member Functions inherited from Mercury.Interpreting.InterpreterAction< T >
void	CheckDefinition ()
Properties inherited from Mercury.Interpreting.InterpreterAction< T >
string	Name [get, set]
	Action name. More...
Tuple< int, int >	Arity [get, set]
	Minimum and maximum number of arguments. More...
ArgumentType	ReturnType [get, set]
	Action return type. More...
ArgumentType[]	ArgumentTypes [get, set]
	Allowed types of arguments. If more arguments specified (within range of Arity), the last type in this array will be used. It can be empty if and only if arity is (0,0). More...
bool	AllowsWildcard [get, set]
	Indicates whether a Mercury.Interpreting.Wildcard can be an argument of this action. More...

Detailed Description

Interpreter action with a safer return type.

Template Parameters

T	Interpreter output type.
U	Action return type.

Type Constraints

T

:

class

Definition at line 157 of file InterpreterAction.cs.

Constructor & Destructor Documentation

Mercury.Interpreting.InterpreterAction< T, U >.InterpreterAction	(	string	name,
		Tuple< int, int >	arity,
		ArgumentType[]	argtypes,
		bool	allowswild = true
	)

Initializes a new instance of the InterpreterAction{T,U} class. See Mercury.Interpreting.InterpreterAction{T} for better explanation.

Parameters

name	The name of action.
arity	The arity of action.
argtypes	Argument types.
allowswild	Indicates whether the action can accept wildcards.

Definition at line 170 of file InterpreterAction.cs.

Member Function Documentation

abstract U Mercury.Interpreting.InterpreterAction< T, U >.Evaluate ( Argument[]  arguments, RecursiveEval< T >  eval, InterpreterContext< T >  context  )

pure virtual

Evaluates the action.

Parameters

arguments	Arguments provided by the interpreter.
eval	The recursive evaluation delegate.
context	The interpreter context.

Returns

Implemented in Mercury.Interpreting.ConstantAction< T, U >, Mercury.Interpreting.ConvertAction< T, U, V >, Mercury.Interpreting.FoldingAction< T, U, V >, and Mercury.Interpreting.OperationAction< T, U, V >.

override object Mercury.Interpreting.InterpreterAction< T, U >.Invoke ( Argument[]  arguments, RecursiveEval< T >  eval, InterpreterContext< T >  context  )

virtual

Evaluates the arguments.
It is guaranteed to have a valid number of arguments (specified by Arity) and that no argument is null UNLESS the flag Mercury.Interpreting.ArgumentType contains Lazy or Null.

Parameters

arguments	Arguments of the function.
eval	The recursive evaluation of trees.
context	Interpreter context.

Returns

String value of evaluation or null if failed.

Implements Mercury.Interpreting.InterpreterAction< T >.

Definition at line 197 of file InterpreterAction.cs.

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The documentation for this class was generated from the following file:

• Mercury/Mercury/Interpreting/InterpreterAction.cs