| /* |
| * Copyright (c) 2003 The Visigoth Software Society. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, if |
| * any, must include the following acknowledgement: |
| * "This product includes software developed by the |
| * Visigoth Software Society (http://www.visigoths.org/)." |
| * Alternately, this acknowledgement may appear in the software itself, |
| * if and wherever such third-party acknowledgements normally appear. |
| * |
| * 4. Neither the name "FreeMarker", "Visigoth", nor any of the names of the |
| * project contributors may be used to endorse or promote products derived |
| * from this software without prior written permission. For written |
| * permission, please contact visigoths@visigoths.org. |
| * |
| * 5. Products derived from this software may not be called "FreeMarker" or "Visigoth" |
| * nor may "FreeMarker" or "Visigoth" appear in their names |
| * without prior written permission of the Visigoth Software Society. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE VISIGOTH SOFTWARE SOCIETY OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Visigoth Software Society. For more |
| * information on the Visigoth Software Society, please see |
| * http://www.visigoths.org/ |
| */ |
| |
| package freemarker.core; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.ListIterator; |
| |
| import freemarker.template.SimpleSequence; |
| import freemarker.template.TemplateException; |
| import freemarker.template.TemplateMethodModel; |
| import freemarker.template.TemplateMethodModelEx; |
| import freemarker.template.TemplateModel; |
| import freemarker.template.TemplateSequenceModel; |
| import freemarker.template.utility.Collections12; |
| |
| final class ListLiteral extends Expression { |
| |
| final ArrayList items; |
| |
| ListLiteral(ArrayList items) { |
| this.items = items; |
| items.trimToSize(); |
| } |
| |
| TemplateModel _eval(Environment env) throws TemplateException { |
| SimpleSequence list = new SimpleSequence(items.size()); |
| for (Iterator it = items.iterator(); it.hasNext();) { |
| Expression exp = (Expression) it.next(); |
| TemplateModel tm = exp.eval(env); |
| if (env == null || !env.isClassicCompatible()) { |
| exp.assertNonNull(tm, env); |
| } |
| list.add(tm); |
| } |
| return list; |
| } |
| |
| /** |
| * For {@link TemplateMethodModel} calls, but not for {@link TemplateMethodModelEx}-es, returns the list of |
| * arguments as {@link String}-s. |
| */ |
| List/*<String>*/ getValueList(Environment env) throws TemplateException { |
| int size = items.size(); |
| switch(size) { |
| case 0: { |
| return Collections.EMPTY_LIST; |
| } |
| case 1: { |
| return Collections12.singletonList(((Expression)items.get(0)).evalAndCoerceToString(env)); |
| } |
| default: { |
| List result = new ArrayList(items.size()); |
| for (ListIterator iterator = items.listIterator(); iterator.hasNext();) { |
| Expression exp = (Expression)iterator.next(); |
| result.add(exp.evalAndCoerceToString(env)); |
| } |
| return result; |
| } |
| } |
| } |
| |
| /** |
| * For {@link TemplateMethodModelEx} calls, returns the list of arguments as {@link TemplateModel}-s. |
| */ |
| List/*<TemplateModel>*/ getModelList(Environment env) throws TemplateException { |
| int size = items.size(); |
| switch(size) { |
| case 0: { |
| return Collections.EMPTY_LIST; |
| } |
| case 1: { |
| return Collections12.singletonList(((Expression)items.get(0)).eval(env)); |
| } |
| default: { |
| List result = new ArrayList(items.size()); |
| for (ListIterator iterator = items.listIterator(); iterator.hasNext();) { |
| Expression exp = (Expression)iterator.next(); |
| result.add(exp.eval(env)); |
| } |
| return result; |
| } |
| } |
| } |
| |
| public String getCanonicalForm() { |
| StringBuffer buf = new StringBuffer("["); |
| int size = items.size(); |
| for (int i = 0; i<size; i++) { |
| Expression value = (Expression) items.get(i); |
| buf.append(value.getCanonicalForm()); |
| if (i != size-1) { |
| buf.append(", "); |
| } |
| } |
| buf.append("]"); |
| return buf.toString(); |
| } |
| |
| String getNodeTypeSymbol() { |
| return "[...]"; |
| } |
| |
| boolean isLiteral() { |
| if (constantValue != null) { |
| return true; |
| } |
| for (int i = 0; i<items.size(); i++) { |
| Expression exp = (Expression) items.get(i); |
| if (!exp.isLiteral()) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| // A hacky routine used by VisitNode and RecurseNode |
| |
| TemplateSequenceModel evaluateStringsToNamespaces(Environment env) throws TemplateException { |
| TemplateSequenceModel val = (TemplateSequenceModel) eval(env); |
| SimpleSequence result = new SimpleSequence(val.size()); |
| for (int i=0; i<items.size(); i++) { |
| Object itemExpr = items.get(i); |
| if (itemExpr instanceof StringLiteral) { |
| String s = ((StringLiteral) itemExpr).getAsString(); |
| try { |
| Environment.Namespace ns = env.importLib(s, null); |
| result.add(ns); |
| } |
| catch (IOException ioe) { |
| throw new _MiscTemplateException(((StringLiteral) itemExpr), new Object[] { |
| "Couldn't import library ", new _DelayedJQuote(s), ": ", |
| new _DelayedGetMessage(ioe) }); |
| } |
| } |
| else { |
| result.add(val.get(i)); |
| } |
| } |
| return result; |
| } |
| |
| protected Expression deepCloneWithIdentifierReplaced_inner( |
| String replacedIdentifier, Expression replacement, ReplacemenetState replacementState) { |
| ArrayList clonedValues = (ArrayList)items.clone(); |
| for (ListIterator iter = clonedValues.listIterator(); iter.hasNext();) { |
| iter.set(((Expression)iter.next()).deepCloneWithIdentifierReplaced( |
| replacedIdentifier, replacement, replacementState)); |
| } |
| return new ListLiteral(clonedValues); |
| } |
| |
| int getParameterCount() { |
| return items != null ? items.size() : 0; |
| } |
| |
| Object getParameterValue(int idx) { |
| checkIndex(idx); |
| return items.get(idx); |
| } |
| |
| ParameterRole getParameterRole(int idx) { |
| checkIndex(idx); |
| return ParameterRole.ITEM_VALUE; |
| } |
| |
| private void checkIndex(int idx) { |
| if (items == null || idx >= items.size()) { |
| throw new IndexOutOfBoundsException(); |
| } |
| } |
| |
| } |