Examples with Expression lucee.transformer.expression.Expression used on opensource projects

Example 11 with Expression

use of lucee.transformer.expression.Expression in project Lucee by lucee.

the class Output method addEncodeToChildren.

private void addEncodeToChildren(Iterator it, Expression encodeForValue, FunctionLibFunction encodeForBIF) {
    Statement stat;
    while (it.hasNext()) {
        stat = (Statement) it.next();
        if (stat instanceof PrintOut) {
            PrintOut printOut = ((PrintOut) stat);
            Expression e = removeCastString(printOut.getExpr());
            if (!(e instanceof Literal)) {
                if (e instanceof Variable) {
                    Member member = ((Variable) e).getFirstMember();
                    if (member instanceof BIF) {
                        BIF bif = (BIF) member;
                        String cn = bif.getClassDefinition().getClassName();
                        if (cn.startsWith(ENCODE_FOR) || cn.equals(ESAPIEncode.class.getName())) {
                            continue;
                        }
                    }
                }
                printOut.setEncodeFor(encodeForValue);
            }
        } else if (stat instanceof Tag) {
            Body b = ((Tag) stat).getBody();
            if (b != null)
                addEncodeToChildren(b.getStatements().iterator(), encodeForValue, encodeForBIF);
        } else if (stat instanceof Body) {
            addEncodeToChildren(((Body) stat).getStatements().iterator(), encodeForValue, encodeForBIF);
        }
    }
}

Example 12 with Expression

use of lucee.transformer.expression.Expression in project Lucee by lucee.

the class AbstrCFMLExprTransformer method assignOp.

/**
 * Transfomiert Zuweisungs Operation.
 * <br />
 * EBNF:<br />
 * <code>eqvOp ["=" spaces assignOp];</code>
 * @return CFXD Element
 * @throws TemplateException
 */
protected Expression assignOp(ExprData data) throws TemplateException {
    Expression expr = conditionalOp(data);
    if (data.srcCode.forwardIfCurrent('=')) {
        comments(data);
        if (data.mode == STATIC)
            expr = new DynAssign(expr, assignOp(data));
        else {
            if (expr instanceof Variable) {
                Expression value = assignOp(data);
                expr = new Assign((Variable) expr, value, data.srcCode.getPosition());
            } else if (expr instanceof Null) {
                Variable var = ((Null) expr).toVariable();
                Expression value = assignOp(data);
                expr = new Assign(var, value, data.srcCode.getPosition());
            } else
                throw new TemplateException(data.srcCode, "invalid assignment left-hand side (" + expr.getClass().getName() + ")");
        }
    }
    // patch for test()();  only works at the end of an expression!
    comments(data);
    while (data.srcCode.isCurrent('(')) {
        comments(data);
        Call call = new Call(expr);
        getFunctionMemberAttrs(data, null, false, call, null);
        call.setEnd(data.srcCode.getPosition());
        comments(data);
        expr = call;
    }
    return expr;
}

Example 13 with Expression

use of lucee.transformer.expression.Expression in project Lucee by lucee.

the class AbstrCFMLExprTransformer method dynamic.

/**
 * Liest den folgenden idetifier ein und prueft ob dieser ein boolscher Wert ist.
 * Im Gegensatz zu CFMX wird auch "yes" und "no" als bolscher <wert akzeptiert,
 * was bei CFMX nur beim Umwandeln einer Zeichenkette zu einem boolschen Wert der Fall ist.<br />
 * Wenn es sich um keinen bolschen Wert handelt wird der folgende Wert eingelesen mit seiner ganzen Hirarchie.
 * <br />
 * EBNF:<br />
 * <code>"true" | "false" | "yes" | "no" | startElement {("." identifier | "[" structElement "]" )[function] };</code>
 * @return CFXD Element
 * @throws TemplateException
 */
private Expression dynamic(ExprData data) throws TemplateException {
    // Die Implementation weicht ein wenig von der Grammatik ab,
    // aber nicht in der Logik sondern rein wie es umgesetzt wurde.
    // get First Element of the Variable
    Position line = data.srcCode.getPosition();
    Identifier id = identifier(data, false, true);
    if (id == null) {
        if (!data.srcCode.forwardIfCurrent('('))
            return null;
        comments(data);
        Expression expr = assignOp(data);
        if (!data.srcCode.forwardIfCurrent(')'))
            throw new TemplateException(data.srcCode, "Invalid Syntax Closing [)] not found");
        comments(data);
        // subDynamic(expr);
        return expr;
    }
    Variable var;
    comments(data);
    // Boolean constant
    if (id.getString().equalsIgnoreCase("TRUE")) {
        // || name.equals("YES"))	{
        comments(data);
        return id.getFactory().createLitBoolean(true, line, data.srcCode.getPosition());
    } else if (id.getString().equalsIgnoreCase("FALSE")) {
        // || name.equals("NO"))	{
        comments(data);
        return id.getFactory().createLitBoolean(false, line, data.srcCode.getPosition());
    } else if ((data.srcCode.getDialect() != CFMLEngine.DIALECT_CFML || data.config.getFullNullSupport()) && id.getString().equalsIgnoreCase("NULL")) {
        comments(data);
        return id.getFactory().createNull(line, data.srcCode.getPosition());
    }
    // Extract Scope from the Variable
    var = startElement(data, id, line);
    var.setStart(line);
    var.setEnd(data.srcCode.getPosition());
    return var;
}

Example 14 with Expression

use of lucee.transformer.expression.Expression in project Lucee by lucee.

the class TagFunction method _writeOut.

public void _writeOut(BytecodeContext bc, int type) throws TransformerException {
    // private static final Expression EMPTY = LitString.toExprString("");
    Body functionBody = new BodyBase(bc.getFactory());
    RefBoolean isStatic = new RefBooleanImpl();
    Function func = createFunction(bc.getPage(), functionBody, isStatic, bc.getOutput());
    // ScriptBody sb=new ScriptBody(bc.getFactory());
    func.setParent(getParent());
    List<Statement> statements = getBody().getStatements();
    Statement stat;
    Tag tag;
    // suppress WS between cffunction and the last cfargument
    Tag last = null;
    if (bc.getSupressWSbeforeArg()) {
        // check if there is a cfargument at all
        Iterator<Statement> it = statements.iterator();
        while (it.hasNext()) {
            stat = it.next();
            if (stat instanceof Tag) {
                tag = (Tag) stat;
                if (tag.getTagLibTag().getTagClassDefinition().isClassNameEqualTo("lucee.runtime.tag.Argument")) {
                    last = tag;
                }
            }
        }
        // check if there are only literal WS printouts
        if (last != null) {
            it = statements.iterator();
            while (it.hasNext()) {
                stat = it.next();
                if (stat == last)
                    break;
                if (stat instanceof PrintOut) {
                    PrintOut po = (PrintOut) stat;
                    Expression expr = po.getExpr();
                    if (!(expr instanceof LitString) || !StringUtil.isWhiteSpace(((LitString) expr).getString())) {
                        last = null;
                        break;
                    }
                }
            }
        }
    }
    Iterator<Statement> it = statements.iterator();
    boolean beforeLastArgument = last != null;
    while (it.hasNext()) {
        stat = it.next();
        if (beforeLastArgument) {
            if (stat == last) {
                beforeLastArgument = false;
            } else if (stat instanceof PrintOut) {
                PrintOut po = (PrintOut) stat;
                Expression expr = po.getExpr();
                if (expr instanceof LitString) {
                    LitString ls = (LitString) expr;
                    if (StringUtil.isWhiteSpace(ls.getString()))
                        continue;
                }
            }
        }
        if (stat instanceof Tag) {
            tag = (Tag) stat;
            if (tag.getTagLibTag().getTagClassDefinition().isClassNameEqualTo("lucee.runtime.tag.Argument")) {
                addArgument(func, tag);
                continue;
            }
        }
        functionBody.addStatement(stat);
    }
    func._writeOut(bc, type);
}

Example 15 with Expression

use of lucee.transformer.expression.Expression in project Lucee by lucee.

the class TagGroupUtil method writeOutTypeQuery.

public static void writeOutTypeQuery(final TagGroup tag, BytecodeContext bc) throws TransformerException {
    final GeneratorAdapter adapter = bc.getAdapter();
    tag.setNumberIterator(adapter.newLocal(NUMBER_ITERATOR));
    boolean isOutput = tag.getType() == TagGroup.TAG_OUTPUT;
    ParseBodyVisitor pbv = isOutput ? new ParseBodyVisitor() : null;
    if (isOutput)
        pbv.visitBegin(bc);
    // Query query=pc.getQuery(@query);
    tag.setQuery(adapter.newLocal(Types.QUERY));
    adapter.loadArg(0);
    Expression val = tag.getAttribute("query").getValue();
    val.writeOut(bc, Expression.MODE_REF);
    if (val instanceof LitString)
        adapter.invokeVirtual(Types.PAGE_CONTEXT, TagLoop.GET_QUERY_STRING);
    else
        adapter.invokeVirtual(Types.PAGE_CONTEXT, TagLoop.GET_QUERY_OBJ);
    adapter.storeLocal(tag.getQuery());
    tag.setPID(adapter.newLocal(Types.INT_VALUE));
    adapter.loadArg(0);
    adapter.invokeVirtual(Types.PAGE_CONTEXT, TagLoop.GET_ID);
    adapter.storeLocal(tag.getPID());
    // int startAt=query.getCurrentrow();
    final int startAt = adapter.newLocal(Types.INT_VALUE);
    adapter.loadLocal(tag.getQuery());
    adapter.loadLocal(tag.getPID());
    // adapter.loadArg(0);
    // adapter.invokeVirtual(Types.PAGE_CONTEXT, TagLoop.GET_ID);
    adapter.invokeInterface(Types.QUERY, TagLoop.GET_CURRENTROW_1);
    adapter.storeLocal(startAt);
    // if(query.getRecordcount()>0) {
    DecisionIntVisitor div = new DecisionIntVisitor();
    div.visitBegin();
    adapter.loadLocal(tag.getQuery());
    adapter.invokeInterface(Types.QUERY, GET_RECORDCOUNT);
    div.visitGT();
    adapter.push(0);
    div.visitEnd(bc);
    Label ifRecCount = new Label();
    adapter.ifZCmp(Opcodes.IFEQ, ifRecCount);
    // startrow
    int from = adapter.newLocal(Types.INT_VALUE);
    Attribute attrStartRow = tag.getAttribute("startrow");
    if (attrStartRow != null) {
        // NumberRange.range(@startrow,1)
        // attrStartRow.getValue().writeOut(bc, Expression.MODE_VALUE);
        bc.getFactory().toExprInt(attrStartRow.getValue()).writeOut(bc, Expression.MODE_VALUE);
        // adapter.visitInsn(Opcodes.D2I);
        adapter.push(1);
        adapter.invokeStatic(Types.NUMBER_RANGE, RANGE);
    // adapter.visitInsn(Opcodes.D2I);
    } else {
        adapter.push(1);
    }
    adapter.storeLocal(from);
    // numberIterator
    adapter.loadLocal(from);
    adapter.loadLocal(tag.getQuery());
    adapter.invokeInterface(Types.QUERY, GET_RECORDCOUNT);
    // adapter.visitInsn(Opcodes.I2D);
    Attribute attrMaxRow = tag.getAttribute("maxrows");
    Attribute attrEndRow = tag.getAttribute("endrow");
    if (attrMaxRow != null) {
        bc.getFactory().toExprInt(attrMaxRow.getValue()).writeOut(bc, Expression.MODE_VALUE);
        adapter.invokeStatic(NUMBER_ITERATOR, LOAD_MAX);
    } else if (attrEndRow != null) {
        bc.getFactory().toExprInt(attrEndRow.getValue()).writeOut(bc, Expression.MODE_VALUE);
        adapter.invokeStatic(NUMBER_ITERATOR, LOAD_END);
    } else {
        adapter.invokeStatic(NUMBER_ITERATOR, LOAD_2);
    }
    adapter.storeLocal(tag.getNumberIterator());
    // Group
    Attribute attrGroup = tag.getAttribute("group");
    Attribute attrGroupCS = tag.getAttribute("groupcasesensitive");
    tag.setGroup(adapter.newLocal(Types.STRING));
    final int groupCaseSensitive = adapter.newLocal(Types.BOOLEAN_VALUE);
    if (attrGroup != null) {
        attrGroup.getValue().writeOut(bc, Expression.MODE_REF);
        adapter.storeLocal(tag.getGroup());
        if (attrGroupCS != null)
            attrGroupCS.getValue().writeOut(bc, Expression.MODE_VALUE);
        else
            adapter.push(false);
        adapter.storeLocal(groupCaseSensitive);
    }
    // pc.us().addQuery(query);
    adapter.loadArg(0);
    adapter.invokeVirtual(Types.PAGE_CONTEXT, US);
    adapter.loadLocal(tag.getQuery());
    adapter.invokeInterface(UNDEFINED, ADD_QUERY);
    // current
    final int current = adapter.newLocal(Types.INT_VALUE);
    adapter.loadLocal(from);
    adapter.push(1);
    adapter.visitInsn(Opcodes.ISUB);
    adapter.storeLocal(current);
    // Try
    TryFinallyVisitor tfv = new TryFinallyVisitor(new OnFinally() {

        @Override
        public void _writeOut(BytecodeContext bc) {
            // query.reset();
            // query.go(startAt);
            adapter.loadLocal(tag.getQuery());
            adapter.loadLocal(startAt);
            adapter.loadLocal(tag.getPID());
            // adapter.loadArg(0);
            // adapter.invokeVirtual(Types.PAGE_CONTEXT, TagLoop.GET_ID);
            adapter.invokeInterface(Types.QUERY, TagLoop.GO);
            adapter.pop();
            // pc.us().removeQuery();
            adapter.loadArg(0);
            adapter.invokeVirtual(Types.PAGE_CONTEXT, US);
            adapter.invokeInterface(UNDEFINED, REMOVE_QUERY);
            // NumberIterator.release(ni);
            adapter.loadLocal(tag.getNumberIterator());
            adapter.invokeStatic(NUMBER_ITERATOR, REALEASE);
        }
    }, null);
    tfv.visitTryBegin(bc);
    WhileVisitor wv = new WhileVisitor();
    if (tag instanceof TagLoop)
        ((TagLoop) tag).setLoopVisitor(wv);
    wv.visitBeforeExpression(bc);
    // while(ni.isValid()) {
    adapter.loadLocal(tag.getNumberIterator());
    adapter.loadLocal(current);
    adapter.push(1);
    adapter.visitInsn(Opcodes.IADD);
    adapter.invokeVirtual(NUMBER_ITERATOR, IS_VALID_1);
    wv.visitAfterExpressionBeforeBody(bc);
    // if(!query.go(ni.current()))break;
    adapter.loadLocal(tag.getQuery());
    adapter.loadLocal(tag.getNumberIterator());
    adapter.invokeVirtual(NUMBER_ITERATOR, CURRENT);
    adapter.loadLocal(tag.getPID());
    adapter.invokeInterface(Types.QUERY, TagLoop.GO);
    NotVisitor.visitNot(bc);
    Label _if = new Label();
    adapter.ifZCmp(Opcodes.IFEQ, _if);
    wv.visitBreak(bc);
    adapter.visitLabel(_if);
    if (attrGroup != null) {
        // NumberIterator oldNi=numberIterator;
        int oldNi = adapter.newLocal(NUMBER_ITERATOR);
        adapter.loadLocal(tag.getNumberIterator());
        adapter.storeLocal(oldNi);
        // numberIterator=NumberIterator.load(ni,query,group,grp_case);
        adapter.loadArg(0);
        adapter.loadLocal(tag.getNumberIterator());
        adapter.loadLocal(tag.getQuery());
        adapter.loadLocal(tag.getGroup());
        adapter.loadLocal(groupCaseSensitive);
        adapter.invokeStatic(NUMBER_ITERATOR, LOAD_5);
        adapter.storeLocal(tag.getNumberIterator());
        // current=oldNi.current();
        adapter.loadLocal(oldNi);
        adapter.invokeVirtual(NUMBER_ITERATOR, CURRENT);
        adapter.storeLocal(current);
        tag.getBody().writeOut(bc);
        // tmp(adapter,current);
        // NumberIterator.release(ni);
        adapter.loadLocal(tag.getNumberIterator());
        adapter.invokeStatic(NUMBER_ITERATOR, REALEASE);
        // numberIterator=oldNi;
        adapter.loadLocal(oldNi);
        adapter.storeLocal(tag.getNumberIterator());
    } else {
        // current=ni.current();
        adapter.loadLocal(tag.getNumberIterator());
        adapter.invokeVirtual(NUMBER_ITERATOR, CURRENT);
        adapter.storeLocal(current);
        tag.getBody().writeOut(bc);
    }
    // ni.setCurrent(current+1);
    /*adapter.loadLocal(tag.getNumberIterator());
					adapter.loadLocal(current);
					adapter.push(1);
					adapter.visitInsn(Opcodes.IADD);
					adapter.invokeVirtual(NUMBER_ITERATOR, SET_CURRENT);*/
    wv.visitAfterBody(bc, tag.getEnd());
    tfv.visitTryEnd(bc);
    adapter.visitLabel(ifRecCount);
    if (isOutput)
        pbv.visitEnd(bc);
}