Examples with Function lucee.transformer.bytecode.statement.udf.Function used on opensource projects

Example 6 with Function

use of lucee.transformer.bytecode.statement.udf.Function in project Lucee by lucee.

the class AbstrCFMLScriptTransformer method closurePart.

@Override
protected final Function closurePart(ExprData data, String id, int access, int modifier, String rtnType, Position line, boolean closure) throws TemplateException {
    Body body = new FunctionBody(data.factory);
    Function func = closure ? new Closure(data.root, id, access, modifier, rtnType, body, line, null) : new FunctionImpl(data.root, id, access, modifier, rtnType, body, line, null);
    comments(data);
    if (!data.srcCode.forwardIfCurrent('('))
        throw new TemplateException(data.srcCode, "invalid syntax in function head, missing begin [(]");
    // arguments
    ArrayList<Argument> args = getScriptFunctionArguments(data);
    for (Argument arg : args) {
        func.addArgument(arg.getName(), arg.getType(), arg.getRequired(), arg.getDefaultValue(), arg.isPassByReference(), arg.getDisplayName(), arg.getHint(), arg.getMetaData());
    }
    // end )
    comments(data);
    if (!data.srcCode.forwardIfCurrent(')'))
        throw new TemplateException(data.srcCode, "invalid syntax in function head, missing ending [)]");
    // doc comment
    if (data.docComment != null) {
        func.setHint(data.factory, data.docComment.getHint());
        // params
        /*Map<String, Attribute> params = data.docComment.getParams();
			Iterator<Attribute> it = params.values().iterator();
			Attribute attr;
			String name;
			while(it.hasNext()){
				attr=it.next();
				name=attr.getName();
			}*/
        func.setMetaData(data.docComment.getParams());
        data.docComment = null;
    }
    comments(data);
    // attributes
    Attribute[] attrs = attributes(null, null, data, SEMI_BLOCK, data.factory.EMPTY(), Boolean.TRUE, null, false, NO_ATTR_SEP, true);
    for (int i = 0; i < attrs.length; i++) {
        func.addAttribute(attrs[i]);
    }
    // body
    boolean oldInsideFunction = data.insideFunction;
    data.insideFunction = true;
    try {
        // ex block
        statement(data, body, CTX_FUNCTION);
    } finally {
        data.insideFunction = oldInsideFunction;
    }
    func.setEnd(data.srcCode.getPosition());
    if (closure)
        comments(data);
    return func;
}

Example 7 with Function

use of lucee.transformer.bytecode.statement.udf.Function in project Lucee by lucee.

the class AbstrCFMLScriptTransformer method funcStatement.

/**
 * Liest ein function Statement ein.
 * <br />
 * EBNF:<br />
 * <code>identifier spaces "(" spaces identifier spaces {"," spaces identifier spaces} ")" spaces block;</code>
 * @return function Statement
 * @throws TemplateException
 */
private final Statement funcStatement(ExprData data, Body parent) throws TemplateException {
    int pos = data.srcCode.getPos();
    // read 5 tokens (returntype,access modifier,"abstract|final|static","function", function name)
    String str = variableDec(data, false);
    // if there is no token at all we have no function
    if (str == null) {
        data.srcCode.setPos(pos);
        return null;
    }
    comments(data);
    String[] tokens = new String[] { str, null, null, null, null };
    tokens[1] = variableDec(data, false);
    comments(data);
    if (tokens[1] != null) {
        tokens[2] = variableDec(data, false);
        comments(data);
        if (tokens[2] != null) {
            tokens[3] = variableDec(data, false);
            comments(data);
            if (tokens[3] != null) {
                tokens[4] = identifier(data, false);
                comments(data);
            }
        }
    }
    // function name
    String functionName = null;
    for (int i = tokens.length - 1; i >= 0; i--) {
        // first from right is the function name
        if (tokens[i] != null) {
            functionName = tokens[i];
            tokens[i] = null;
            break;
        }
    }
    if (functionName == null || functionName.indexOf(',') != -1 || functionName.indexOf('[') != -1) {
        data.srcCode.setPos(pos);
        return null;
    }
    // throw new TemplateException(data.srcCode, "invalid syntax");
    String returnType = null;
    // search for "function"
    boolean hasOthers = false, first = true;
    for (int i = tokens.length - 1; i >= 0; i--) {
        if ("function".equalsIgnoreCase(tokens[i])) {
            // if it is the first "function" (from right) and we had already something else, the syntax is broken!
            if (hasOthers && first)
                throw new TemplateException(data.srcCode, "invalid syntax");
            else // we already have a return type,so this is the 3th "function"!
            if (returnType != null)
                throw new TemplateException(data.srcCode, "invalid syntax");
            else if (!first)
                returnType = tokens[i];
            first = false;
            tokens[i] = null;
        } else if (tokens[i] != null) {
            hasOthers = true;
        }
    }
    // no "function" found
    if (first) {
        data.srcCode.setPos(pos);
        return null;
    }
    // access modifier
    int _access, access = -1;
    for (int i = 0; i < tokens.length; i++) {
        if (tokens[i] != null && (_access = ComponentUtil.toIntAccess(tokens[i], -1)) != -1) {
            // we already have an access modifier
            if (access != -1) {
                // we already have a return type
                if (returnType != null)
                    throw new TemplateException(data.srcCode, "invalid syntax");
                returnType = tokens[i];
            } else
                access = _access;
            tokens[i] = null;
        }
    }
    // no access defined
    if (access == -1)
        access = Component.ACCESS_PUBLIC;
    // Non access modifier
    int _modifier, modifier = Component.MODIFIER_NONE;
    boolean isStatic = false;
    for (int i = 0; i < tokens.length; i++) {
        if (tokens[i] != null) {
            _modifier = ComponentUtil.toModifier(tokens[i], Component.MODIFIER_NONE, Component.MODIFIER_NONE);
            // abstract|final
            if (_modifier != Component.MODIFIER_NONE) {
                // we already have an Non access modifier
                if (modifier != Component.MODIFIER_NONE || isStatic) {
                    // we already have a return type
                    if (returnType != null)
                        throw new TemplateException(data.srcCode, "invalid syntax");
                    returnType = tokens[i];
                } else
                    modifier = _modifier;
                tokens[i] = null;
            } else // static
            if (tokens[i].equalsIgnoreCase("static")) {
                // we already have an Non access modifier
                if (modifier != Component.MODIFIER_NONE || isStatic) {
                    // we already have a return type
                    if (returnType != null)
                        throw new TemplateException(data.srcCode, "invalid syntax");
                    returnType = tokens[i];
                } else
                    isStatic = true;
                tokens[i] = null;
            }
        }
    }
    // return type
    for (int i = 0; i < tokens.length; i++) {
        if (tokens[i] != null) {
            if (returnType != null)
                throw new TemplateException(data.srcCode, "invalid syntax");
            returnType = tokens[i];
        }
    }
    Position line = data.srcCode.getPosition();
    // Name
    if (!data.isCFC && !data.isInterface) {
        FunctionLibFunction flf = getFLF(data, functionName);
        try {
            if (flf != null && flf.getFunctionClassDefinition().getClazz() != CFFunction.class) {
                PageSource ps = null;
                if (data.srcCode instanceof PageSourceCode) {
                    ps = ((PageSourceCode) data.srcCode).getPageSource();
                }
                String path = null;
                if (ps != null) {
                    path = ps.getDisplayPath();
                    path = path.replace('\\', '/');
                }
                if (// TODO make better
                path == null || path.indexOf("/library/function/") == -1)
                    throw new TemplateException(data.srcCode, "The name [" + functionName + "] is already used by a built in Function");
            }
        } catch (Throwable t) {
            ExceptionUtil.rethrowIfNecessary(t);
            throw new PageRuntimeException(Caster.toPageException(t));
        }
    }
    Function res = closurePart(data, functionName, access, modifier, returnType, line, false);
    if (isStatic) {
        if (data.context == CTX_INTERFACE)
            throw new TemplateException(data.srcCode, "static functions are not allowed within the interface body");
        TagOther tag = createStaticTag(data, res.getStart());
        tag.getBody().addStatement(res);
        return tag;
    }
    return res;
}