Examples with StatementBase lucee.transformer.bytecode.statement.StatementBase used on opensource projects

Example 1 with StatementBase

use of lucee.transformer.bytecode.statement.StatementBase 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);
}