| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.commons.jexl3.parser; |
| |
| import org.apache.commons.jexl3.JexlFeatures; |
| import org.apache.commons.jexl3.internal.Scope; |
| import java.util.Map; |
| import org.apache.commons.jexl3.internal.Frame; |
| |
| /** |
| * Enhanced script to allow parameters declaration. |
| */ |
| public class ASTJexlScript extends JexlLexicalNode { |
| /** The pragmas. */ |
| private Map<String, Object> pragmas = null; |
| /** Features. */ |
| private JexlFeatures features = null; |
| /** The script scope. */ |
| private Scope scope = null; |
| |
| public ASTJexlScript(final int id) { |
| super(id); |
| } |
| |
| public ASTJexlScript(final Parser p, final int id) { |
| super(p, id); |
| } |
| |
| /** |
| * Consider script with no parameters that return lambda as parametric-scripts. |
| * @return the script |
| */ |
| public ASTJexlScript script() { |
| if (scope == null && jjtGetNumChildren() == 1 && jjtGetChild(0) instanceof ASTJexlLambda) { |
| final ASTJexlLambda lambda = (ASTJexlLambda) jjtGetChild(0); |
| lambda.jjtSetParent(null); |
| return lambda; |
| } else { |
| return this; |
| } |
| } |
| |
| @Override |
| public Object jjtAccept(final ParserVisitor visitor, final Object data) { |
| return visitor.visit(this, data); |
| } |
| |
| /** |
| * Sets this script pragmas. |
| * @param thePragmas the pragmas |
| */ |
| public void setPragmas(final Map<String, Object> thePragmas) { |
| this.pragmas = thePragmas; |
| } |
| |
| /** |
| * @return this script pragmas. |
| */ |
| public Map<String, Object> getPragmas() { |
| return pragmas; |
| } |
| |
| /** |
| * Sets this script features. |
| * @param theFeatures the features |
| */ |
| public void setFeatures(final JexlFeatures theFeatures) { |
| this.features = theFeatures; |
| } |
| |
| /** |
| * @return this script scope |
| */ |
| public JexlFeatures getFeatures() { |
| return features; |
| } |
| |
| /** |
| * Sets this script scope. |
| * @param theScope the scope |
| */ |
| public void setScope(final Scope theScope) { |
| this.scope = theScope; |
| if (theScope != null) { |
| for(int a = 0; a < theScope.getArgCount(); ++a) { |
| this.declareSymbol(a); |
| } |
| } |
| } |
| |
| /** |
| * @return this script scope |
| */ |
| public Scope getScope() { |
| return scope; |
| } |
| |
| /** |
| * Creates an array of arguments by copying values up to the number of parameters. |
| * @param caller the calling frame |
| * @param values the argument values |
| * @return the arguments array |
| */ |
| public Frame createFrame(final Frame caller, final Object... values) { |
| return scope != null? scope.createFrame(caller, values) : null; |
| } |
| |
| /** |
| * Creates an array of arguments by copying values up to the number of parameters. |
| * @param values the argument values |
| * @return the arguments array |
| */ |
| public Frame createFrame(final Object... values) { |
| return createFrame(null, values); |
| } |
| |
| /** |
| * Gets the (maximum) number of arguments this script expects. |
| * @return the number of parameters |
| */ |
| public int getArgCount() { |
| return scope != null? scope.getArgCount() : 0; |
| } |
| |
| /** |
| * Gets this script symbols, i.e. parameters and local variables. |
| * @return the symbol names |
| */ |
| public String[] getSymbols() { |
| return scope != null? scope.getSymbols() : null; |
| } |
| |
| /** |
| * Gets this script parameters, i.e. symbols assigned before creating local variables. |
| * @return the parameter names |
| */ |
| public String[] getParameters() { |
| return scope != null? scope.getParameters() : null; |
| } |
| |
| /** |
| * Gets this script local variable, i.e. symbols assigned to local variables. |
| * @return the local variable names |
| */ |
| public String[] getLocalVariables() { |
| return scope != null? scope.getLocalVariables() : null; |
| } |
| |
| /** |
| * Checks whether a given symbol is captured. |
| * @param symbol the symbol number |
| * @return true if captured, false otherwise |
| */ |
| public boolean isCapturedSymbol(final int symbol) { |
| return scope != null && scope.isCapturedSymbol(symbol); |
| } |
| } |