Examples with ExprTransformer lucee.transformer.cfml.ExprTransformer used on opensource projects

Example 1 with ExprTransformer

use of lucee.transformer.cfml.ExprTransformer in project Lucee by lucee.

the class Loop method evaluate.

@Override
public void evaluate(Tag tag, TagLibTag tagLibTag, FunctionLib[] flibs) throws EvaluatorException {
    TagLoop loop = (TagLoop) tag;
    // attribute maxrows and endrow not allowd at the same time
    if (tag.containsAttribute("maxrows") && tag.containsAttribute("endrow"))
        throw new EvaluatorException("Wrong Context, you cannot use attribute maxrows and endrow at the same time.");
    // file loop
    if (tag.containsAttribute("file")) {
        if (!tag.containsAttribute("index") && !tag.containsAttribute("item"))
            throw new EvaluatorException("Wrong Context, when you use attribute file you must also use attribute index and/or item");
        loop.setType(TagLoop.TYPE_FILE);
        return;
    }
    // list loop
    if (tag.containsAttribute("list")) {
        if (!tag.containsAttribute("index") && !tag.containsAttribute("item"))
            throw new EvaluatorException("Wrong Context, when you use attribute list,you must define attribute index and/or item");
        loop.setType(TagLoop.TYPE_LIST);
        return;
    }
    // array loop
    if (tag.containsAttribute("array")) {
        if (!tag.containsAttribute("index") && !tag.containsAttribute("item"))
            throw new EvaluatorException("Wrong Context, when you use attribute array, you must define attribute index and/or item");
        loop.setType(TagLoop.TYPE_ARRAY);
        return;
    }
    // array loop
    if (tag.containsAttribute("times")) {
        if (tag.getAttributes().size() > 1)
            throw new EvaluatorException("Wrong Context, when you use attribute times, no other attributes are allowed");
        loop.setType(TagLoop.TYPE_TIMES);
        return;
    }
    // struct loop
    if (tag.containsAttribute("struct")) {
        if (!tag.containsAttribute("index") && !tag.containsAttribute("item") && !tag.containsAttribute("key") && !tag.containsAttribute("value"))
            throw new EvaluatorException("Wrong Context, when you use attribute struct, you must define attribute index (alias key) and/or item (alias value)");
        loop.setType(TagLoop.TYPE_STRUCT);
        return;
    }
    // collection loop
    if (tag.containsAttribute("collection")) {
        if (!tag.containsAttribute("index") && !tag.containsAttribute("item") && !tag.containsAttribute("key") && !tag.containsAttribute("value"))
            throw new EvaluatorException("Wrong Context, when you use attribute struct, you must define attribute index (alias key) and/or item (alias value)");
        loop.setType(TagLoop.TYPE_COLLECTION);
        return;
    }
    /*if(tag.containsAttribute("index")) {
			if(!tag.containsAttribute("from") || !tag.containsAttribute("to"))
				throw new EvaluatorException("Wrong Context, when you use attribute index you must also use attribute from and to or list or file");
			loop.setType(TagLoop.TYPE_INDEX);
            return;
		}*/
    if (tag.containsAttribute("from") || tag.containsAttribute("to")) {
        if (!tag.containsAttribute("from"))
            throw new EvaluatorException("Wrong Context, when you use attribute to, you must also use attribute from.");
        if (!tag.containsAttribute("to"))
            throw new EvaluatorException("Wrong Context, when you use attribute from, you must also use attribute to.");
        if (!tag.containsAttribute("index") && !tag.containsAttribute("item"))
            throw new EvaluatorException("Wrong Context, when you use attribute from and to, you must define attribute index or item.");
        if (tag.containsAttribute("index") && tag.containsAttribute("item"))
            throw new EvaluatorException("For this type of loop, you cannot use attribute index and item at the same time.");
        loop.setType(TagLoop.TYPE_FROM_TO);
        return;
    }
    // condition loop
    if (tag.containsAttribute("condition")) {
        if (tag.isScriptBase())
            throw new EvaluatorException("tag loop-condition is not supported within cfscript, use instead a while statement.");
        TagLib tagLib = tagLibTag.getTagLib();
        ExprTransformer transformer;
        String text = ASMUtil.getAttributeString(tag, "condition");
        try {
            transformer = tagLib.getExprTransfomer();
            Page page = ASMUtil.getAncestorPage(tag);
            ConfigImpl config = (ConfigImpl) page.getConfig();
            Expression expr = transformer.transform(BytecodeFactory.getInstance(config), page, new EvaluatorPool(), null, flibs, config.getCoreTagLib(page.getSourceCode().getDialect()).getScriptTags(), new SourceCode(text, false, page.getSourceCode().getDialect()), new TransfomerSettings(page.getSourceCode().getDialect() == CFMLEngine.DIALECT_CFML && config.getDotNotationUpperCase(), page.getSourceCode().getDialect() == CFMLEngine.DIALECT_CFML && config.getHandleUnQuotedAttrValueAsString(), page.ignoreScopes));
            tag.addAttribute(new Attribute(false, "condition", page.getFactory().toExprBoolean(expr), "boolean"));
        } catch (Exception e) {
            throw new EvaluatorException(e.getMessage());
        }
        loop.setType(TagLoop.TYPE_CONDITION);
        return;
    }
    // query loop
    if (tag.containsAttribute("query")) {
        loop.setType(TagLoop.TYPE_QUERY);
        return;
    }
    Info info = getParentInfo(loop);
    // query group
    if (tag.containsAttribute("group") && info.hasParentWithQuery) {
        loop.setType(TagLoop.TYPE_GROUP);
        return;
    }
    if (info.hasParentWithQuery) {
        if (info.hasParentWithGroup)
            loop.setType(TagLoop.TYPE_INNER_GROUP);
        else
            loop.setType(TagLoop.TYPE_INNER_QUERY);
        return;
    }
    /*
         if(hasQuery) 
        	output.setType(TagOutput.TYPE_QUERY);
        
        else if(tag.containsAttribute("group") && hasParentWithQuery)
        	output.setType(TagOutput.TYPE_GROUP);
        
        else if(hasParentWithQuery) {
        	if(hasParentWithGroup) output.setType(TagOutput.TYPE_INNER_GROUP);
        	else output.setType(TagOutput.TYPE_INNER_QUERY);
        }
        else
        	 output.setType(TagOutput.TYPE_NORMAL);
        
       
         */
    loop.setType(TagLoop.TYPE_NOTHING);
// throw new EvaluatorException("Wrong Context, invalid attributes in tag cfloop");
}

Example 2 with ExprTransformer

use of lucee.transformer.cfml.ExprTransformer in project Lucee by lucee.

the class CFMLTransformer method tag.

/**
 * Liest einen Tag ein, prueft hierbei ob das Tag innerhalb einer der geladenen Tag-Lib existiert,
 * ansonsten wird ein Tag einfach als literal-string aufgenommen.
 * <br />
 * EBNF:<br />
 * <code>name-space identifier spaces attributes ("/>" | ">" [body "</" identifier spaces ">"]);(* Ob dem Tag ein Body und ein End-Tag folgt ist abhaengig von Definition des body-content in Tag-Lib, gleices gilt fuer appendix *)</code>
 * @param parent uebergeornetes Tag
 * @param parseExpression sollen Expresson innerhalb des Body geparste werden oder nicht.
 * @return Gibt zurueck ob es sich um ein Tag as einer Tag-Lib handelte oder nicht.
 * @throws TemplateException
 */
private boolean tag(TagData data, Body parent, boolean parseExpression) throws TemplateException {
    // lucee.print.ln("--->"+data.cfml.getCurrent());
    boolean hasBody = false;
    Position line = data.srcCode.getPosition();
    // int column=data.cfml.getColumn();
    int start = data.srcCode.getPos();
    data.srcCode.next();
    // read in namespace of tag
    TagLib tagLib = nameSpace(data);
    // return if no matching tag lib
    if (tagLib == null) {
        data.srcCode.previous();
        return false;
    }
    // Get matching tag from tag lib
    String strNameNormal = identifier(data.srcCode, false, true);
    if (strNameNormal == null) {
        data.srcCode.setPos((data.srcCode.getPos() - tagLib.getNameSpaceAndSeparator().length()) - 1);
        return false;
    }
    String strName = strNameNormal.toLowerCase();
    String appendix = null;
    TagLibTag tagLibTag = tagLib.getTag(strName);
    // get taglib
    if (tagLibTag == null) {
        tagLibTag = tagLib.getAppendixTag(strName);
        if (tagLibTag == null) {
            if (tagLib.getIgnoreUnknowTags()) {
                data.srcCode.setPos(start);
                return false;
            }
            throw new TemplateException(data.srcCode, "undefined tag [" + tagLib.getNameSpaceAndSeparator() + strName + "]");
        }
        appendix = StringUtil.removeStartingIgnoreCase(strNameNormal, tagLibTag.getName());
    }
    // CFXD Element
    Tag tag;
    try {
        tag = tagLibTag.getTag(data.factory, line, data.srcCode.getPosition());
    } catch (Exception e) {
        throw new TemplateException(data.srcCode, e);
    }
    parent.addStatement(tag);
    // get tag from tag library
    if (appendix != null) {
        tag.setAppendix(appendix);
        tag.setFullname(tagLibTag.getFullName().concat(appendix));
    } else {
        tag.setFullname(tagLibTag.getFullName());
    }
    // if(tag.getFullname().equalsIgnoreCase("cfcomponent"))data.page.setIsComponent(true);	// MUST to hardcoded, to better
    // else if(tag.getFullname().equalsIgnoreCase("cfinterface"))data.page.setIsInterface(true);	// MUST to hardcoded, to better
    tag.setTagLibTag(tagLibTag);
    comment(data.srcCode, true);
    // Tag Translator Evaluator
    if (tagLibTag.hasTTE()) {
        data.ep.add(tagLibTag, tag, data.flibs, data.srcCode);
    }
    // get Attributes
    attributes(data, tagLibTag, tag);
    if (tagLibTag.hasAttributeEvaluator()) {
        try {
            tagLibTag = tagLibTag.getAttributeEvaluator().evaluate(tagLibTag, tag);
        } catch (AttributeEvaluatorException e) {
            throw new TemplateException(data.srcCode, e);
        }
    }
    // TODO muss erlaubt sein
    if (data.srcCode.forwardIfCurrent('>')) {
        hasBody = tagLibTag.getHasBody();
    } else if (data.srcCode.forwardIfCurrent('/', '>')) {
        if (tagLibTag.getHasBody())
            tag.setBody(new BodyBase(data.factory));
    } else {
        throw createTemplateException(data.srcCode, "tag [" + tagLibTag.getFullName() + "] is not closed", tagLibTag);
    }
    // Body
    if (hasBody) {
        // get Body
        if (tagLibTag.isTagDependent()) {
            // get TagDependentBodyTransformer
            TagDependentBodyTransformer tdbt = null;
            try {
                tdbt = tagLibTag.getBodyTransformer();
            } catch (TagLibException e) {
                throw new TemplateException(data.srcCode, e);
            }
            if (tdbt == null)
                throw createTemplateException(data.srcCode, "Tag dependent body Transformer is invalid for Tag [" + tagLibTag.getFullName() + "]", tagLibTag);
            tag.setBody(tdbt.transform(data.factory, data.root, data.ep, data.tlibs, data.flibs, tagLibTag.getFullName(), data.scriptTags, data.srcCode, data.settings));
            // get TagLib of end Tag
            if (!data.srcCode.forwardIfCurrent("</")) {
                // MUST this is a patch, do a more proper implementation
                TemplateException te = new TemplateException(data.srcCode, "invalid construct");
                if (tdbt instanceof CFMLScriptTransformer && ASMUtil.containsComponent(tag.getBody())) {
                    throw new CFMLScriptTransformer.ComponentTemplateException(te);
                }
                throw te;
            }
            TagLib tagLibEnd = nameSpace(data);
            // same NameSpace
            if (!(tagLibEnd != null && tagLibEnd.getNameSpaceAndSeparator().equals(tagLib.getNameSpaceAndSeparator())))
                throw new TemplateException(data.srcCode, "invalid construct");
            // get end Tag
            String strNameEnd = identifier(data.srcCode, true, true).toLowerCase();
            // not the same name Tag
            if (!strName.equals(strNameEnd)) {
                data.srcCode.setPos(start);
                throw new TemplateException(data.srcCode, "Start and End Tag has not the same Name [" + tagLib.getNameSpaceAndSeparator() + strName + "-" + tagLibEnd.getNameSpaceAndSeparator() + strNameEnd + "]");
            }
            data.srcCode.removeSpace();
            if (!data.srcCode.forwardIfCurrent('>'))
                throw new TemplateException(data.srcCode, "End Tag [" + tagLibEnd.getNameSpaceAndSeparator() + strNameEnd + "] not closed");
        } else {
            // get body of Tag
            BodyBase body = new BodyBase(data.factory);
            body.setParent(tag);
            // parseExpression=(tagLibTag.getParseBody())?true:parseExpression;
            if (tagLibTag.getParseBody())
                parseExpression = true;
            while (true) {
                // Load Expession Transformer from TagLib
                ExprTransformer transfomer = null;
                if (parseExpression) {
                    try {
                        transfomer = tagLibTag.getTagLib().getExprTransfomer();
                    } catch (TagLibException e) {
                        throw new TemplateException(data.srcCode, e);
                    }
                }
                // call body
                body(data, body, parseExpression, transfomer);
                // no End Tag
                if (data.srcCode.isAfterLast()) {
                    if (tagLibTag.isBodyReq()) {
                        data.srcCode.setPos(start);
                        throw createTemplateException(data.srcCode, "No matching end tag found for tag [" + tagLibTag.getFullName() + "]", tagLibTag);
                    }
                    body.moveStatmentsTo(parent);
                    return executeEvaluator(data, tagLibTag, tag);
                }
                // Invalid Construct
                int posBeforeEndTag = data.srcCode.getPos();
                if (!data.srcCode.forwardIfCurrent('<', '/'))
                    throw createTemplateException(data.srcCode, "Missing end tag for [" + tagLibTag.getFullName() + "]", tagLibTag);
                // get TagLib of end Tag
                int _start = data.srcCode.getPos();
                TagLib tagLibEnd = nameSpace(data);
                // same NameSpace
                if (tagLibEnd != null) {
                    String strNameEnd = "";
                    // lucee.print.ln(data.cfml.getLine()+" - "+data.cfml.getColumn()+" - "+tagLibEnd.getNameSpaceAndSeperator()+".equals("+tagLib.getNameSpaceAndSeperator()+")");
                    if (tagLibEnd.getNameSpaceAndSeparator().equals(tagLib.getNameSpaceAndSeparator())) {
                        // get end Tag
                        strNameEnd = identifier(data.srcCode, true, true).toLowerCase();
                        // not the same name Tag
                        // new part
                        data.srcCode.removeSpace();
                        if (strName.equals(strNameEnd)) {
                            if (!data.srcCode.forwardIfCurrent('>'))
                                throw new TemplateException(data.srcCode, "End Tag [" + tagLibEnd.getNameSpaceAndSeparator() + strNameEnd + "] not closed");
                            break;
                        }
                    }
                    // new part
                    if (tagLibTag.isBodyReq()) {
                        TagLibTag endTag = tagLibEnd.getTag(strNameEnd);
                        if (endTag != null && !endTag.getHasBody())
                            throw new TemplateException(data.srcCode, "End Tag [" + tagLibEnd.getNameSpaceAndSeparator() + strNameEnd + "] is not allowed, for this tag only a Start Tag is allowed");
                        data.srcCode.setPos(start);
                        if (tagLibEnd.getIgnoreUnknowTags() && (tagLibEnd.getTag(strNameEnd)) == null) {
                            data.srcCode.setPos(_start);
                        } else
                            throw new TemplateException(data.srcCode, "Start and End Tag has not the same Name [" + tagLib.getNameSpaceAndSeparator() + strName + "-" + tagLibEnd.getNameSpaceAndSeparator() + strNameEnd + "]");
                    } else {
                        body.moveStatmentsTo(parent);
                        data.srcCode.setPos(posBeforeEndTag);
                        return executeEvaluator(data, tagLibTag, tag);
                    }
                // / new part
                }
                body.addPrintOut(data.factory, "</", null, null);
            }
            tag.setBody(body);
        }
    }
    if (tag instanceof StatementBase)
        ((StatementBase) tag).setEnd(data.srcCode.getPosition());
    return executeEvaluator(data, tagLibTag, tag);
}