gnu.expr
Class GenericProc

java.lang.Object
  |
  +--gnu.mapping.Procedure
        |
        +--gnu.mapping.ProcedureN
              |
              +--gnu.expr.MethodProc
                    |
                    +--gnu.expr.GenericProc

public class GenericProc

extends MethodProc

A collection of MethodProcs; one is chosen at apply time.

Fields inherited from class gnu.mapping.Procedure

noArgs, sym_name

Constructor Summary

GenericProc()

Method Summary

void	add(MethodProc method)
java.lang.Object	applyN(java.lang.Object[] args)
java.lang.Object	applyV(java.lang.Object vars)
java.lang.Object	getVarBuffer() Return a buffer that can contain decoded (matched) arguments.
int	isApplicable(Type[] args) Test if method is applicable to an invocation with given arguments.
java.lang.RuntimeException	match(java.lang.Object vars, java.lang.Object[] args) Match the incoming arguments.
int	numArgs() Return minArgs()|(maxArgs<<12).

Methods inherited from class gnu.expr.MethodProc

getParameterType, match, mostSpecific, mostSpecific, numParameters

Methods inherited from class gnu.mapping.ProcedureN

apply0, apply1, apply2, apply3, apply4

Methods inherited from class gnu.mapping.Procedure

apply, checkArgCount, getName, getSetter, maxArgs, minArgs, name, print, set0, set1, setN, setName

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GenericProc

public GenericProc()

Method Detail

numArgs

public int numArgs()

Description copied from class: Procedure

Return minArgs()|(maxArgs<<12).

Overrides:

numArgs in class Procedure

add

public void add(MethodProc method)

applyN

public java.lang.Object applyN(java.lang.Object[] args)

Overrides:

applyN in class MethodProc

getVarBuffer

public java.lang.Object getVarBuffer()

Description copied from class: MethodProc

Return a buffer that can contain decoded (matched) arguments.

Overrides:

getVarBuffer in class MethodProc

isApplicable

public int isApplicable(Type[] args)

Description copied from class: MethodProc

Test if method is applicable to an invocation with given arguments. Returns -1 if no; 1 if yes; 0 if need to check at run-time.

Overrides:

isApplicable in class MethodProc

match

public java.lang.RuntimeException match(java.lang.Object vars,
                                        java.lang.Object[] args)

Description copied from class: MethodProc

Match the incoming arguments.

Overrides:

match in class MethodProc

Tags copied from class: MethodProc

Parameters:

args - the incoming argument list

vars - where to save the matched result on success

Returns:

null if the match succeeded, else an exception

applyV

public java.lang.Object applyV(java.lang.Object vars)

Overrides:

applyV in class MethodProc