Package gnu.kawa.functions

Class NumberCompare

java.lang.Object

gnu.mapping.PropertySet

gnu.mapping.Procedure

gnu.mapping.ProcedureN

gnu.kawa.functions.NumberCompare

All Implemented Interfaces:

Named

public class NumberCompare
extends ProcedureN

This implements the numeric comparison relations: <, <=, etc.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	TRUE_IF_EQU
static final int	TRUE_IF_GRT
static final int	TRUE_IF_LSS
static final int	TRUE_IF_NAN
static final int	TRUE_IF_NEQ

Fields inherited from class gnu.mapping.ProcedureN

applyToObject, noArgs

Fields inherited from class gnu.mapping.Procedure

applyMethodType, applyToConsumerDefault, applyToConsumerMethod, applyToObjectDefault, applyToObjectMethod, compilerKey, compilerXKey, inlineIfConstantSymbol, validateApplyKey, validateXApplyKey

Fields inherited from class gnu.mapping.PropertySet

nameKey

Constructor Summary

Constructors

Constructor	Description
NumberCompare()

Method Summary

Modifier and Type	Method	Description
static boolean	$Eq(Object arg1, Object arg2)
static boolean	$Eq$V(Object arg1, Object arg2, Object arg3, Object[] rest)
static boolean	$Gr(Object arg1, Object arg2)
static boolean	$Gr$Eq(Object arg1, Object arg2)
static boolean	$Gr$Eq$V(Object arg1, Object arg2, Object arg3, Object[] rest)
static boolean	$Gr$V(Object arg1, Object arg2, Object arg3, Object[] rest)
static boolean	$Ls(Object arg1, Object arg2)
static boolean	$Ls$Eq(Object arg1, Object arg2)
static boolean	$Ls$Eq$V(Object arg1, Object arg2, Object arg3, Object[] rest)
static boolean	$Ls$V(Object arg1, Object arg2, Object arg3, Object[] rest)
static boolean	apply2(int flags, Object arg1, Object arg2)
Object	apply2(Object arg1, Object arg2)
Object	applyN(Object[] args)
static boolean	applyWithPromotion(int flags, Object arg1, Object arg2)
static boolean	checkCompareCode(int code, int flags)
static int	compare(Object arg1, int code1, Object arg2, int code2, boolean exact)
static int	compare(Object arg1, Object arg2, boolean exact)	Compare two numbers.
static int	compareStrict(Object arg1, Object arg2, boolean exact)
protected final Language	getLanguage()
static NumberCompare	make(Language language, String name, int flags)
int	numArgs()	Return minArgs()|(maxArgs<<12).

Methods inherited from class gnu.mapping.ProcedureN

applyToObject

Methods inherited from class gnu.mapping.Procedure

apply0, apply1, apply3, apply4, applyL, applyToConsumerDefault, applyToObjectDefault, checkArgCount, checkBadCode, getApplyMethod, getApplyToConsumerMethod, getApplyToObjectMethod, getReturnType, getSetter, getSourceLocation, isSideEffectFree, lookupApplyHandle, maxArgs, maxArgs, minArgs, minArgs, set0, set1, setN, setSetter, setSourceLocation, toString

Methods inherited from class gnu.mapping.PropertySet

getName, getProperty, getSymbol, removeProperty, setName, setProperty, setProperty, setSymbol

Methods inherited from class java.lang.Object

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

Field Details

TRUE_IF_GRT

public static final int TRUE_IF_GRT

See Also:

• Constant Field Values

TRUE_IF_EQU

public static final int TRUE_IF_EQU

See Also:

• Constant Field Values

TRUE_IF_LSS

public static final int TRUE_IF_LSS

See Also:

• Constant Field Values

TRUE_IF_NAN

public static final int TRUE_IF_NAN

See Also:

• Constant Field Values

TRUE_IF_NEQ

public static final int TRUE_IF_NEQ

See Also:

• Constant Field Values

Constructor Details

NumberCompare

public NumberCompare()

Method Details

numArgs

public int numArgs()

Description copied from class: Procedure

Return minArgs()|(maxArgs<<12). We use a single virtual function to reduce the number of methods in the system, as well as the number of virtual method table entries. We shift by 12 so the number can normally be represented using a sipush instruction, without requiring a constant pool entry.

Overrides:

numArgs in class Procedure

$Eq

public static boolean $Eq(Object arg1,
 Object arg2)

$Gr

public static boolean $Gr(Object arg1,
 Object arg2)

$Gr$Eq

public static boolean $Gr$Eq(Object arg1,
 Object arg2)

$Ls

public static boolean $Ls(Object arg1,
 Object arg2)

$Ls$Eq

public static boolean $Ls$Eq(Object arg1,
 Object arg2)

$Eq$V

public static boolean $Eq$V(Object arg1,
 Object arg2,
 Object arg3,
 Object[] rest)

$Gr$V

public static boolean $Gr$V(Object arg1,
 Object arg2,
 Object arg3,
 Object[] rest)

$Gr$Eq$V

public static boolean $Gr$Eq$V(Object arg1,
 Object arg2,
 Object arg3,
 Object[] rest)

$Ls$V

public static boolean $Ls$V(Object arg1,
 Object arg2,
 Object arg3,
 Object[] rest)

$Ls$Eq$V

public static boolean $Ls$Eq$V(Object arg1,
 Object arg2,
 Object arg3,
 Object[] rest)

make

public static NumberCompare make(Language language,
 String name,
 int flags)

getLanguage

protected final Language getLanguage()

apply2

public Object apply2(Object arg1,
 Object arg2)

Overrides:

apply2 in class Procedure

apply2

public static boolean apply2(int flags,
 Object arg1,
 Object arg2)

checkCompareCode

public static boolean checkCompareCode(int code,
 int flags)

applyWithPromotion

public static boolean applyWithPromotion(int flags,
 Object arg1,
 Object arg2)

compare

public static int compare(Object arg1,
 Object arg2,
 boolean exact)

Compare two numbers.

Parameters:

exact - true if we should compare exact/inexact numbers exactly (by converting the inexact number to exact), or inexactly (by "promoting" the exact to inexact) (as required for XQuery).

Returns:

1 if arg1>arg2; 0 if arg1==arg2; -1 if arg1<arg2; -2 if either is NaN; -3 if not comparable (either is not a number).

compareStrict

public static int compareStrict(Object arg1,
 Object arg2,
 boolean exact)

compare

public static int compare(Object arg1,
 int code1,
 Object arg2,
 int code2,
 boolean exact)

applyN

public Object applyN(Object[] args)

Overrides:

applyN in class Procedure