| /* |
| * |
| * 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.royale.compiler.internal.definitions; |
| |
| import org.apache.royale.compiler.common.DependencyType; |
| import org.apache.royale.compiler.constants.IASLanguageConstants.BuiltinType; |
| import org.apache.royale.compiler.definitions.IParameterDefinition; |
| import org.apache.royale.compiler.definitions.references.IReference; |
| import org.apache.royale.compiler.definitions.references.ReferenceFactory; |
| import org.apache.royale.compiler.internal.scopes.CatchScope; |
| import org.apache.royale.compiler.projects.ICompilerProject; |
| import org.apache.royale.compiler.scopes.IASScope; |
| import org.apache.royale.compiler.tree.as.IParameterNode; |
| |
| /** |
| * Each instance of this class represents the definition of an ActionScript |
| * function parameter in the symbol table. |
| * <p> |
| * After a parameter definition is in the symbol table, it should always be |
| * accessed through the read-only <code>IParameterDefinition</code> interface. |
| */ |
| public class ParameterDefinition extends VariableDefinition implements IParameterDefinition |
| { |
| public ParameterDefinition(String name) |
| { |
| super(name); |
| } |
| |
| @Override |
| public boolean isRest() |
| { |
| return (flags & FLAG_REST) != 0; |
| } |
| |
| public void setRest() |
| { |
| flags |= FLAG_REST; |
| |
| // The type of a '...' parameter is always Array. |
| IReference arrayTypeReference = ReferenceFactory.builtinReference(BuiltinType.ARRAY); |
| setTypeReference(arrayTypeReference); |
| } |
| |
| @Override |
| public boolean hasDefaultValue() |
| { |
| return (flags & FLAG_DEFAULT) != 0; |
| } |
| |
| public void setHasDefault() |
| { |
| flags |= FLAG_DEFAULT; |
| } |
| |
| public void setDefaultValue(Object value) |
| { |
| initValue = value; |
| flags |= FLAG_DEFAULT; |
| } |
| |
| @Override |
| public Object resolveDefaultValue(ICompilerProject project) |
| { |
| // We can use VariableDefinitions initial value code, as it does |
| // the same thing. |
| if (hasDefaultValue()) |
| return resolveInitialValue(project); |
| return null; |
| } |
| |
| @Override |
| protected DependencyType getTypeDependencyType() |
| { |
| // TODO If this a parameter to a function closure |
| // then this method should return DependencyType.EXPRESSION. |
| return DependencyType.SIGNATURE; |
| } |
| |
| @Override |
| public IParameterNode getNode() |
| { |
| return (IParameterNode)super.getNode(); |
| } |
| |
| @Override |
| public boolean matches(DefinitionBase node) |
| { |
| boolean matches = super.matches(node); |
| if (!matches) |
| return false; |
| if (node.getNameStart() != getNameStart() || node.getNameEnd() != getNameEnd()) |
| return false; |
| return true; |
| } |
| |
| /** |
| * For debugging only. |
| */ |
| @Override |
| public void buildInnerString(StringBuilder sb) |
| { |
| sb.append(getBaseName()); |
| |
| String type = getTypeAsDisplayString(); |
| if (!type.isEmpty()) |
| { |
| sb.append(':'); |
| sb.append(type); |
| } |
| } |
| |
| @Override |
| public final VariableClassification getVariableClassification() |
| { |
| IASScope containingScope = getContainingScope(); |
| if (containingScope instanceof CatchScope) |
| return VariableClassification.LOCAL; |
| return VariableClassification.PARAMETER; |
| } |
| } |