gnu.kawa.functions
Class ValuesMap

java.lang.Object
  gnu.mapping.PropertySet
      gnu.mapping.Procedure
          gnu.mapping.ProcedureN
              gnu.mapping.MethodProc
                  gnu.kawa.functions.ValuesMap

All Implemented Interfaces:

CanInline, Inlineable, Named

public class ValuesMap
extends MethodProc
implements CanInline, Inlineable

Map a function over a value sequence, yielding a new sequence. Normally, the function takes one argument, the item in the sequence. If startCounter is non-negative, a position index is also passed. Used to implement XQuery's 'for' form.

Field Summary

static ValuesMap	valuesMap
static ValuesMap	valuesMapWithPos

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

Method Summary

void	apply(CallContext ctx) Call this Procedure using the explicit-CallContext-convention.
void	compile(ApplyExp exp, Compilation comp, Target target)
static void	compileInlined(LambdaExp lambda, Expression vals, int startCounter, Method matchesMethod, Compilation comp, Target target)
Type	getReturnType(Expression[] args)
Expression	inline(ApplyExp exp, ExpWalker walker) Inline an application of this Procedure and return result.
int	numArgs() Return minArgs()|(maxArgs<<12).

Methods inherited from class gnu.mapping.MethodProc

applyN, getParameterType, isApplicable, 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, check0, check1, check2, check3, check4, checkArgCount, checkN, getSetter, getSourceLocation, match0, match1, match2, match3, match4, matchN, maxArgs, 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 Detail

valuesMap

public static final ValuesMap valuesMap

valuesMapWithPos

public static final ValuesMap valuesMapWithPos

Method Detail

numArgs

public int numArgs()

Description copied from class: Procedure

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

Overrides:

numArgs in class Procedure

apply

public void apply(CallContext ctx)
           throws java.lang.Throwable

Description copied from class: Procedure

Call this Procedure using the explicit-CallContext-convention. The input arguments are (by default) in stack.args; the result is written to ctx.consumer.

Overrides:

apply in class Procedure

Throws:

java.lang.Throwable

inline

public Expression inline(ApplyExp exp,
                         ExpWalker walker)

Description copied from interface: CanInline

Inline an application of this Procedure and return result. Can return original expression.

Specified by:

inline in interface CanInline

compile

public void compile(ApplyExp exp,
                    Compilation comp,
                    Target target)

Specified by:

compile in interface Inlineable

compileInlined

public static void compileInlined(LambdaExp lambda,
                                  Expression vals,
                                  int startCounter,
                                  Method matchesMethod,
                                  Compilation comp,
                                  Target target)

getReturnType

public Type getReturnType(Expression[] args)

Specified by:

getReturnType in interface Inlineable