| /* |
| * 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 macromedia.asc.parser; |
| |
| import macromedia.asc.semantics.*; |
| import static macromedia.asc.parser.Tokens.DOT_TOKEN; |
| |
| /** |
| * Node |
| * |
| * @author Jeff Dyer |
| */ |
| public abstract class SelectorNode extends Node |
| { |
| public ObjectValue base; |
| private int flags; |
| public ReferenceValue ref; |
| public Node expr; |
| public boolean is_package; |
| |
| private static final int RVALUE_Flag = 1; |
| private static final int ATTR_Flag = 2; |
| private static final int SUPER_Flag = 4; |
| private static final int VOID_RESULT_Flag = 8; |
| private static final int THIS_Flag = 16; |
| private static final int MODE_Shift = 16; |
| private static final int MODE_Mask = 0xFFFF0000; |
| |
| public SelectorNode() |
| { |
| // don't set java defaults |
| //base = null; |
| //is_rvalue = false; |
| //is_attr = false; |
| //is_super = false; |
| setMode(DOT_TOKEN); |
| } |
| |
| public void setBase(ObjectValue base) |
| { |
| this.base = base; |
| } |
| public boolean isQualified() { return false; } |
| public boolean isAttributeIdentifier() { return false; } |
| public boolean isAny() { return false; } |
| |
| public void setRValue(boolean is_rvalue) |
| { |
| flags = is_rvalue ? (flags|RVALUE_Flag) : (flags&~RVALUE_Flag); |
| } |
| |
| public boolean isRValue() |
| { |
| return (flags&RVALUE_Flag) != 0; |
| } |
| |
| public void setAttr(boolean is_attr) |
| { |
| flags = is_attr ? (flags|ATTR_Flag) : (flags&~ATTR_Flag); |
| } |
| |
| public boolean isAttr() |
| { |
| return (flags&ATTR_Flag) != 0; |
| } |
| |
| public void setMode(int mode) |
| { |
| flags &= ~MODE_Mask; |
| flags |= mode<<MODE_Shift; |
| } |
| |
| public int getMode() |
| { |
| return flags>>MODE_Shift; |
| } |
| |
| public void setSuper(boolean is_super) |
| { |
| flags = is_super ? (flags|SUPER_Flag) : (flags&~SUPER_Flag); |
| } |
| |
| public boolean isSuper() |
| { |
| return (flags&SUPER_Flag) != 0; |
| } |
| |
| public void setThis(boolean is_this) |
| { |
| flags = is_this ? (flags|THIS_Flag) : (flags&~THIS_Flag); |
| } |
| |
| public boolean isThis() |
| { |
| return (flags&THIS_Flag) != 0; |
| } |
| |
| public void voidResult() |
| { |
| flags |= VOID_RESULT_Flag; |
| } |
| |
| public boolean isVoidResult() |
| { |
| return (flags & VOID_RESULT_Flag) != 0; |
| } |
| |
| public IdentifierNode getIdentifier() |
| { |
| return (expr instanceof IdentifierNode) ? (IdentifierNode)expr : null; |
| } |
| private boolean skip = false; |
| public void skipNode(boolean b) |
| { |
| skip = b; |
| } |
| |
| public boolean skip() |
| { |
| return skip; |
| } |
| } |