Examples of UserFunction

client.net.sf.saxon.ce.expr.instruct.UserFunction
This object represents the compiled form of a user-written function (the source can be either an XSLT stylesheet function or an XQuery function).
It is assumed that type-checking, of both the arguments and the results, has been handled at compile time. That is, the expression supplied as the body of the function must be wrapped in code to check or convert the result to the required type, and calls on the function must be wrapped at compile time to check or convert the supplied arguments.
net.sf.saxon.expr.instruct.UserFunction
net.sf.saxon.instruct.UserFunction
This object represents the compiled form of a user-written function (the source can be either an XSLT stylesheet function or an XQuery function).
It is assumed that type-checking, of both the arguments and the results, has been handled at compile time. That is, the expression supplied as the body of the function must be wrapped in code to check or convert the result to the required type, and calls on the function must be wrapped at compile time to check or convert the supplied arguments.
org.pdf4j.saxon.instruct.UserFunction
This object represents the compiled form of a user-written function (the source can be either an XSLT stylesheet function or an XQuery function).
It is assumed that type-checking, of both the arguments and the results, has been handled at compile time. That is, the expression supplied as the body of the function must be wrapped in code to check or convert the result to the required type, and calls on the function must be wrapped at compile time to check or convert the supplied arguments.
xbird.xquery.func.UserFunction
g/TR/xquery/#doc-xquery-FunctionDecl

Examples of xbird.xquery.func.UserFunction

    }


    @Override
    public Sequence<? extends Item> eval(Sequence<? extends Item> contextSeq, DynamicContext dynEnv)
            throws XQueryException {
        UserFunction uf = this.getFunction();
        List<ParametricVariable> params = uf.getParameters();
        int paramArity = _params.size();
        int argArity = params.size();
        assert (paramArity == argArity);
        FunctionCallContext recEnv = new FunctionCallContext(dynEnv);
        for(int i = 0; i < paramArity; i++) {
            ParametricVariable paramVar = params.get(i);
            XQExpression argExpr = _params.get(i);
            Sequence argValue = argExpr.eval(contextSeq, dynEnv);
            paramVar.allocateResult(argValue, recEnv);
        }
        Sequence<? extends Item> result = uf.eval(contextSeq, ValueSequence.EMPTY_SEQUENCE, recEnv);
        if(LOG.isDebugEnabled()) {
            LOG.debug("Invoke RecursiveCall: " + QNameUtil.toLexicalForm(getFuncName()));
        }
        return result;
    }

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Examples of xbird.xquery.func.UserFunction


    @Override
    public XQExpression staticAnalysis(StaticContext statEnv) throws XQueryException {
        if(!_analyzed) {
            this._analyzed = true;
            UserFunction udf = getUserFunction(statEnv);
            if(!_inlined) {
                // analyze body
                XQExpression body = ExpressionFactory.inlineFunction(_functionManager, udf, _params, statEnv);
                XQExpression analyzed = body.staticAnalysis(statEnv);
                XQExpression typePromoted = new TypePromotedExpr(analyzed, udf.getReturnType());
                return typePromoted;
            } else {
                // analyze params
                for(int i = 0; i < _params.size(); i++) {
                    final XQExpression p = _params.get(i);
                    _params.set(i, p.staticAnalysis(statEnv));
                }
                this._type = udf.getReturnType();
            }
        }
        return this;
    }

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Examples of xbird.xquery.func.UserFunction

        }
        if(!(func instanceof UserFunction)) {
            throw new IllegalStateException("function must be UserFunction, but was '"
                    + func.getName() + '\'');
        }
        UserFunction udf = ((UserFunction) func);
        return udf;
    }

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Examples of xbird.xquery.func.UserFunction

    }


    public Sequence<? extends Item> eval(Sequence<? extends Item> contextSeq, DynamicContext dynEnv)
            throws XQueryException {
        assert (dynEnv != null);
        UserFunction udf = getUserFunction(dynEnv.getStaticContext());
        List<ParametricVariable> params = udf.getParameters();
        int paramArity = _params.size();
        int argArity = params.size();
        assert (paramArity == argArity);
        FunctionCallContext recEnv = new FunctionCallContext(dynEnv);
        for(int i = 0; i < paramArity; i++) {
            ParametricVariable paramVar = params.get(i);
            XQExpression argExpr = _params.get(i);
            paramVar.setValue(argExpr); // for the static analzing
            Sequence argValue = argExpr.eval(contextSeq, dynEnv);
            paramVar.allocateResult(argValue, recEnv);
        }
        XQExpression body = udf.getBodyExpression();
        // lazy function may not be analyzed TODO REVIEWME
        XQExpression analyzed = body.staticAnalysis(dynEnv.getStaticContext());
        if(LOG.isDebugEnabled()) {
            LOG.debug("Invoke LazyFunctionCall: " + QNameUtil.toLexicalForm(getFuncName()));
        }

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Examples of xbird.xquery.func.UserFunction

    /************************************************************************
    [23] FunctionDecl ::= <"declare" "function"> <QName "("> ParamList? (")" | (<")" "as"> SequenceType)) (EnclosedExpr | "external")
    [26] EnclosedExpr ::= "{" Expr "}"
    ************************************************************************/
    final public void parseFunctionDecl() throws ParseException, XQueryException {
        final UserFunction func;
        final QualifiedName funcName;
        List<ParametricVariable> paramList = Collections.<ParametricVariable> emptyList();
        Type returnType = Untyped.UNTYPED;
        final XQExpression funcBody;
        currentModule.pushVarScope();
        currentToken = jj_consume_token(DefineFunction);
        currentToken = jj_consume_token(QNameLpar);
        funcName = QNameUtil.parse(currentToken.image.substring(0, currentToken.image.length() - 1).trim(), namespaceContext, staticContext.getDefaultFunctionNamespace());
        switch(jj_nt.kind) {
            case VariableIndicator:
                paramList = parseParamList();
                break;
            default:
                jj_la1[24] = jj_gen;
                ;
        }
        switch(jj_nt.kind) {
            case Rpar:
                currentToken = jj_consume_token(Rpar);
                break;
            case RparAs:
                currentToken = jj_consume_token(RparAs);
                returnType = parseSequenceType();
                break;
            default:
                jj_la1[25] = jj_gen;
                jj_consume_token(-1);
                throw new ParseException();
        }
        final String nsuri = funcName.getNamespaceURI();
        if(isLibraryModule) {
            final String tn = currentModule.getNamespace();
            if(tn == null) { // sanity check
                error("err:XQST0046");
            }
            if(tn.equals(nsuri) == false) {
                error("err:XQST0048");
            }
        } else {
            UserFunction.checkAsPredefinedFunction(nsuri);
        }
        func = ExpressionFactory.createUserFunction(currentModule, funcName, paramList, returnType);
        switch(jj_nt.kind) {
            case LbraceExprEnclosure:
                currentToken = jj_consume_token(LbraceExprEnclosure);
                funcBody = parseExpr();
                func.setBodyExpression(funcBody);
                currentToken = jj_consume_token(Rbrace);
                break;
            case External:
                currentToken = jj_consume_token(External);
                func.setExternal(true);
                break;
            default:
                jj_la1[26] = jj_gen;
                jj_consume_token(-1);
                throw new ParseException();

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Examples of xbird.xquery.func.UserFunction

    /************************************************************************
     [23] FunctionDecl ::= <"declare" "function"> <QName "("> ParamList? (")" | (<")" "as"> SequenceType)) (EnclosedExpr | "external")
     [26] EnclosedExpr ::= "{" Expr "}"
     ************************************************************************/
    final public void parseFunctionDecl() throws ParseException, XQueryException {
        final UserFunction func;
        final QualifiedName funcName;
        List<ParametricVariable> paramList = Collections.<ParametricVariable> emptyList();
        Type returnType = Untyped.UNTYPED;
        final XQExpression funcBody;
        currentModule.pushVarScope();
        currentToken = jj_consume_token(DefineFunction);
        currentToken = jj_consume_token(QNameLpar);
        funcName = QNameUtil.parse(currentToken.image.substring(0, currentToken.image.length() - 1).trim(), namespaceContext, staticContext.getDefaultFunctionNamespace());
        switch(jj_nt.kind) {
            case VariableIndicator:
                paramList = parseParamList();
                break;
            default:
                jj_la1[24] = jj_gen;
                ;
        }
        switch(jj_nt.kind) {
            case Rpar:
                currentToken = jj_consume_token(Rpar);
                break;
            case RparAs:
                currentToken = jj_consume_token(RparAs);
                returnType = parseSequenceType();
                break;
            default:
                jj_la1[25] = jj_gen;
                jj_consume_token(-1);
                throw new ParseException();
        }
        final String nsuri = funcName.getNamespaceURI();
        if(isLibraryModule) {
            final String tn = currentModule.getNamespace();
            if(tn == null) { // sanity check
                error("err:XQST0046");
            }
            if(tn.equals(nsuri) == false) {
                error("err:XQST0048");
            }
        } else {
            UserFunction.checkAsPredefinedFunction(nsuri);
        }
        func = ExpressionFactory.createUserFunction(currentModule, funcName, paramList, returnType);
        switch(jj_nt.kind) {
            case LbraceExprEnclosure:
                currentToken = jj_consume_token(LbraceExprEnclosure);
                funcBody = parseExpr();
                func.setBodyExpression(funcBody);
                currentToken = jj_consume_token(Rbrace);
                break;
            case External:
                currentToken = jj_consume_token(External);
                func.setExternal(true);
                break;
            default:
                jj_la1[26] = jj_gen;
                jj_consume_token(-1);
                throw new ParseException();

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