| /* |
| * |
| * 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.as.codegen; |
| |
| import org.apache.royale.abc.instructionlist.InstructionList; |
| import org.apache.royale.compiler.definitions.IDefinition; |
| import org.apache.royale.compiler.definitions.ITypeDefinition; |
| import org.apache.royale.compiler.internal.tree.as.NodeBase; |
| import org.apache.royale.compiler.projects.ICompilerProject; |
| import org.apache.royale.compiler.tree.ASTNodeID; |
| import org.apache.royale.compiler.tree.as.IASNode; |
| import org.apache.royale.compiler.tree.as.IExpressionNode; |
| import org.apache.royale.compiler.tree.as.IScopedNode; |
| |
| /** |
| * A node to use to inject an InstructionList in places that an Expression is expected. |
| * |
| * This is for use when the compiler can easily synthesize an instruction list for some |
| * boiler-plate code gen. This lets us avoid having to construct a Synthesized AST that would |
| * then be run through the code generator to produce the InstructionList. |
| * |
| * This also means that no semantic checking of the code in the InstructionList will be done. |
| * If you are using this, then it is assumed you know what you are doing, and that you are putting |
| * correct code into the InstructionList |
| */ |
| public class InstructionListNode extends NodeBase implements IExpressionNode |
| { |
| public InstructionListNode(InstructionList il ) |
| { |
| this.il = il; |
| } |
| |
| private InstructionList il; |
| |
| public InstructionList getInstructions() |
| { |
| return il; |
| } |
| |
| public InstructionListNode copyForInitializer (IScopedNode scopedNode) |
| { |
| return new InstructionListNode(il); |
| } |
| |
| // Implement IExpressionNode methods below |
| |
| @Override |
| public boolean isDynamicExpression(ICompilerProject project) |
| { |
| return false; |
| } |
| |
| /** |
| * Determines whether this expression is surrounded by parenthesis. Nested parenthesis are reduced to the smallest number needed |
| * to maintain code meaning |
| * |
| * @return true if surrounded by parenthesis |
| */ |
| @Override |
| public boolean hasParenthesis() |
| { |
| return false; |
| } |
| |
| @Override |
| public IDefinition resolve(ICompilerProject project) |
| { |
| // TODO: allow this to be parameterized by the ctor |
| return null; |
| } |
| |
| @Override |
| public ITypeDefinition resolveType(ICompilerProject project) |
| { |
| // TODO: allow this to be parameterized by the ctor |
| return null; |
| } |
| |
| /** |
| * Get the opcode of this node |
| * |
| * @return the opcode - this is one of the constants defined in ASTConstants |
| */ |
| @Override |
| public ASTNodeID getNodeID() |
| { |
| return ASTNodeID.InstructionListID; |
| } |
| |
| /** |
| * Get a particular child of this node |
| * |
| * @param i the child's index |
| * @return the specified child |
| */ |
| @Override |
| public IASNode getChild(int i) |
| { |
| // Has no children |
| return null; |
| } |
| |
| /** |
| * Get the number of children |
| * |
| * @return the number of children |
| */ |
| @Override |
| public int getChildCount() |
| { |
| // Has no children |
| return 0; |
| } |
| } |