gnu.expr
Class GenericProc

java.lang.Object
  gnu.mapping.Procedure
      gnu.mapping.ProcedureN
          gnu.mapping.MethodProc
              gnu.expr.GenericProc

All Implemented Interfaces:

Named

public class GenericProc
extends MethodProc

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

Field Summary

protected MethodProc[]

methods

Fields inherited from class gnu.mapping.MethodProc

argTypes, NO_MATCH, NO_MATCH_AMBIGUOUS, NO_MATCH_BAD_TYPE, NO_MATCH_TOO_FEW_ARGS, NO_MATCH_TOO_MANY_ARGS

Fields inherited from class gnu.mapping.ProcedureN

noArgs

Constructor Summary

GenericProc()

GenericProc(java.lang.String name)

Method Summary

void	add(MethodProc method)
protected void	add(MethodProc[] procs)
java.lang.Object	applyN(java.lang.Object[] args)
int	isApplicable(Type[] args) Test if method is applicable to an invocation with given arguments.
static GenericProc	make(java.lang.Object[] args) Create a GenericProc from one or more methods, plus properties.
int	match0(CallContext ctx) Pass zero arguments.
int	match1(java.lang.Object arg1, CallContext ctx) Pass one argument.
int	match2(java.lang.Object arg1, java.lang.Object arg2, CallContext ctx) Pass two arguments.
int	match3(java.lang.Object arg1, java.lang.Object arg2, java.lang.Object arg3, CallContext ctx) Pass three arguments.
int	match4(java.lang.Object arg1, java.lang.Object arg2, java.lang.Object arg3, java.lang.Object arg4, CallContext ctx) Pass four arguments.
int	matchN(java.lang.Object[] args, CallContext ctx)
int	numArgs() Return minArgs()|(maxArgs<<12).
void	setProperties(java.lang.Object[] args)

Methods inherited from class gnu.mapping.MethodProc

getParameterType, matchFailAsException, mostSpecific, mostSpecific, numParameters, resolveParameterTypes

Methods inherited from class gnu.mapping.ProcedureN

apply0, apply1, apply2, apply3, apply4

Methods inherited from class gnu.mapping.Procedure

apply, apply, check0, check1, check2, check3, check4, checkArgCount, checkN, getName, getProperty, getSetter, getSymbol, maxArgs, minArgs, name, removeProperty, set0, set1, setN, setName, setProperty, setProperty, setSetter, setSymbol, toString

Methods inherited from class java.lang.Object

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

Field Detail

methods

protected MethodProc[] methods

Constructor Detail

GenericProc

public GenericProc(java.lang.String name)

GenericProc

public GenericProc()

Method Detail

numArgs

public int numArgs()

Description copied from class: Procedure

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

Overrides:

numArgs in class Procedure

add

protected void add(MethodProc[] procs)

add

public void add(MethodProc method)

applyN

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

Overrides:

applyN in class MethodProc

Throws:

java.lang.Throwable

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

match0

public int match0(CallContext ctx)

Description copied from class: Procedure

Pass zero arguments.

Overrides:

match0 in class Procedure

Returns:

non-negative if the match succeeded, else negative.

match1

public int match1(java.lang.Object arg1,
                  CallContext ctx)

Description copied from class: Procedure

Pass one argument.

Overrides:

match1 in class Procedure

Returns:

non-negative if the match succeeded, else negative.

match2

public int match2(java.lang.Object arg1,
                  java.lang.Object arg2,
                  CallContext ctx)

Description copied from class: Procedure

Pass two arguments.

Overrides:

match2 in class Procedure

Returns:

non-negative if the match succeeded, else negative.

match3

public int match3(java.lang.Object arg1,
                  java.lang.Object arg2,
                  java.lang.Object arg3,
                  CallContext ctx)

Description copied from class: Procedure

Pass three arguments.

Overrides:

match3 in class Procedure

Returns:

non-negative if the match succeeded, else negative.

match4

public int match4(java.lang.Object arg1,
                  java.lang.Object arg2,
                  java.lang.Object arg3,
                  java.lang.Object arg4,
                  CallContext ctx)

Description copied from class: Procedure

Pass four arguments.

Overrides:

match4 in class Procedure

Returns:

non-negative if the match succeeded, else negative.

matchN

public int matchN(java.lang.Object[] args,
                  CallContext ctx)

Overrides:

matchN in class Procedure

setProperties

public final void setProperties(java.lang.Object[] args)

make

public static GenericProc make(java.lang.Object[] args)

Create a GenericProc from one or more methods, plus properties.