Mercury.Interpreting.InterpreterAction< T > Class Template Reference

Function that wraps constant values in the RHS More...

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

Public Member Functions
	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...
abstract 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...

Protected Member Functions
void	CheckDefinition ()

Properties
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

Function that wraps constant values in the RHS

Template Parameters

T	Interpreter output type

Parameters

args	The arguments
eval	The recusrive eval function

Returns

Function that wraps multiple action calls in the RHS into one

Template Parameters

T

Parameters

args	The arguments.

Returns

Represents Actions taken in order to interpret trees.

Type Constraints

T

:

class

Definition at line 46 of file InterpreterAction.cs.

Constructor & Destructor Documentation

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:

1. name
   - must not be null, empty nor consist of whitespaces only
   
2. arity
   - Item1 is less than Item2
   
   • non-negative components
     
3. types
   - non-empty (unless arity is (0, 0))
   

Parameters

name	The name of the action.
arity	The arity, minimum and maximum number of allowed arguments.
argtypes	The types of arguments. If specified less than required, the last one will be repeated for unmatched arguments.
allowswild	if set to true AND the maximum number of arguments equals System.Int32.MAX_VALUE, the action will support wildcards.

Exceptions

System.ArgumentNullException

When name , arity or argtypes are null.

Definition at line 94 of file InterpreterAction.cs.

Member Function Documentation

void Mercury.Interpreting.InterpreterAction< T >.CheckDefinition ( )

protected

Definition at line 51 of file InterpreterAction.cs.

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

pure 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.

Implemented in Mercury.Interpreting.ArithmeticAction< T >, and Mercury.Interpreting.InterpreterAction< T, U >.

Property Documentation

bool Mercury.Interpreting.InterpreterAction< T >.AllowsWildcard

getset

Indicates whether a Mercury.Interpreting.Wildcard can be an argument of this action.

Definition at line 132 of file InterpreterAction.cs.

ArgumentType [] Mercury.Interpreting.InterpreterAction< T >.ArgumentTypes

getset

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).

Definition at line 126 of file InterpreterAction.cs.

Tuple<int, int> Mercury.Interpreting.InterpreterAction< T >.Arity

getset

Minimum and maximum number of arguments.

Definition at line 116 of file InterpreterAction.cs.

string Mercury.Interpreting.InterpreterAction< T >.Name

getset

Action name.

Definition at line 113 of file InterpreterAction.cs.

ArgumentType Mercury.Interpreting.InterpreterAction< T >.ReturnType

getset

Action return type.

Definition at line 119 of file InterpreterAction.cs.

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

• Mercury/Mercury/Interpreting/InterpreterAction.cs