--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v0.5
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v05.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ ******************************************************************************/
+package net.sourceforge.phpdt.internal.compiler.ast;
+
+import net.sourceforge.phpdt.internal.compiler.impl.*;
+import net.sourceforge.phpdt.internal.compiler.lookup.*;
+import net.sourceforge.phpdt.internal.compiler.IAbstractSyntaxTreeVisitor;
+
+public abstract class AstNode implements BaseTypes, CompilerModifiers, TypeConstants, TypeIds {
+
+ public int sourceStart, sourceEnd;
+
+ //some global provision for the hierarchy
+ public final static Constant NotAConstant = Constant.NotAConstant;
+
+ // storage for internal flags (32 bits)
+ public int bits = IsReachableMASK; // reachable by default
+
+ // for operators only
+ // Reach . . . . . . . . . . . . . . . . . O O O O O O V VrR R R R
+ public static final int ReturnTypeIDMASK = 15; // 4 lower bits for operators
+ public static final int ValueForReturnMASK = 16; // for binary expressions
+ public static final int OnlyValueRequiredMASK = 32; // for binary expressions
+ public static final int OperatorSHIFT = 6;
+ public static final int OperatorMASK = 63 << OperatorSHIFT;
+
+ // for name references only
+ // Reach . . . . . . . . . . . . . . . . D D D D D D D D VrF R R R
+ public static final int RestrictiveFlagMASK = 7;
+ // 3 lower bits for name references
+ public static final int FirstAssignmentToLocalMASK = 8;
+ // for single name references
+ public static final int DepthSHIFT = 5;
+ public static final int DepthMASK = 0xFF << DepthSHIFT;
+ // 8 bits for actual depth value (max. 255)
+
+ // for statements only
+ public static final int IsReachableMASK = 0x80000000; // highest bit
+ public static final int IsLocalDeclarationReachableMASK = 0x40000000; // below highest bit
+
+ // for type declaration only
+ public static final int AddAssertionMASK = 1; // lowest bit
+
+ // for type, method and field declarations only
+ public static final int HasLocalTypeMASK = 2;
+ // cannot conflict with AddAssertionMASK
+
+ /*
+ public final static int BitMask1= 0x1; // decimal 1
+ public final static int BitMask2= 0x2; // decimal 2
+ public final static int BitMask3= 0x4; // decimal 4
+ public final static int BitMask4= 0x8; // decimal 8
+ public final static int BitMask5= 0x10; // decimal 16
+ public final static int BitMask6= 0x20; // decimal 32
+ public final static int BitMask7= 0x40; // decimal 64
+ public final static int BitMask8= 0x80; // decimal 128
+ public final static int BitMask9= 0x100; // decimal 256
+ public final static int BitMask10= 0x200; // decimal 512
+ public final static int BitMask11= 0x400; // decimal 1024
+ public final static int BitMask12= 0x800; // decimal 2048
+ public final static int BitMask13= 0x1000; // decimal 4096
+ public final static int BitMask14= 0x2000; // decimal 8192
+ public final static int BitMask15= 0x4000; // decimal 16384
+ public final static int BitMask16= 0x8000; // decimal 32768
+ public final static int BitMask17= 0x10000; // decimal 65536
+ public final static int BitMask18= 0x20000; // decimal 131072
+ public final static int BitMask19= 0x40000; // decimal 262144
+ public final static int BitMask20= 0x80000; // decimal 524288
+ public final static int BitMask21= 0x100000; // decimal 1048576
+ public final static int BitMask22= 0x200000; // decimal 2097152
+ public final static int BitMask23= 0x400000; // decimal 4194304
+ public final static int BitMask24= 0x800000; // decimal 8388608
+ public final static int BitMask25= 0x1000000; // decimal 16777216
+ public final static int BitMask26= 0x2000000; // decimal 33554432
+ public final static int BitMask27= 0x4000000; // decimal 67108864
+ public final static int BitMask28= 0x8000000; // decimal 134217728
+ public final static int BitMask29= 0x10000000; // decimal 268435456
+ public final static int BitMask30= 0x20000000; // decimal 536870912
+ public final static int BitMask31= 0x40000000; // decimal 1073741824
+ public final static int BitMask32= 0x80000000; // decimal 2147483648
+ */
+
+ /**
+ * AstNode constructor comment.
+ */
+ public AstNode() {
+
+ super();
+ }
+
+ public boolean cannotReturn() {
+ return false;
+ }
+
+ public AstNode concreteStatement() {
+ return this;
+ }
+
+ /* Answer true if the field use is considered deprecated.
+ * An access in the same compilation unit is allowed.
+ */
+ public final boolean isFieldUseDeprecated(FieldBinding field, Scope scope) {
+
+ return field.isViewedAsDeprecated()
+ && !scope.isDefinedInSameUnit(field.declaringClass);
+ }
+
+ /* Answer true if the method use is considered deprecated.
+ * An access in the same compilation unit is allowed.
+ */
+ public final boolean isMethodUseDeprecated(MethodBinding method, Scope scope) {
+ return method.isViewedAsDeprecated()
+ && !scope.isDefinedInSameUnit(method.declaringClass);
+ }
+
+ public boolean isSuper() {
+
+ return false;
+ }
+
+ public boolean isThis() {
+
+ return false;
+ }
+
+ /* Answer true if the type use is considered deprecated.
+ * An access in the same compilation unit is allowed.
+ */
+ public final boolean isTypeUseDeprecated(TypeBinding type, Scope scope) {
+
+ if (type.isArrayType())
+ type = ((ArrayBinding) type).leafComponentType;
+ if (type.isBaseType())
+ return false;
+
+ ReferenceBinding refType = (ReferenceBinding) type;
+ return refType.isViewedAsDeprecated() && !scope.isDefinedInSameUnit(refType);
+ }
+
+ public static String modifiersString(int modifiers) {
+
+ String s = ""; //$NON-NLS-1$
+ if ((modifiers & AccPublic) != 0)
+ s = s + "public "; //$NON-NLS-1$
+ if ((modifiers & AccPrivate) != 0)
+ s = s + "private "; //$NON-NLS-1$
+ if ((modifiers & AccProtected) != 0)
+ s = s + "protected "; //$NON-NLS-1$
+ if ((modifiers & AccStatic) != 0)
+ s = s + "static "; //$NON-NLS-1$
+ if ((modifiers & AccFinal) != 0)
+ s = s + "final "; //$NON-NLS-1$
+ if ((modifiers & AccSynchronized) != 0)
+ s = s + "synchronized "; //$NON-NLS-1$
+ if ((modifiers & AccVolatile) != 0)
+ s = s + "volatile "; //$NON-NLS-1$
+ if ((modifiers & AccTransient) != 0)
+ s = s + "transient "; //$NON-NLS-1$
+ if ((modifiers & AccNative) != 0)
+ s = s + "native "; //$NON-NLS-1$
+ if ((modifiers & AccAbstract) != 0)
+ s = s + "abstract "; //$NON-NLS-1$
+ return s;
+ }
+
+ /**
+ * @deprecated - use field instead
+ */
+ public int sourceEnd() {
+ return sourceEnd;
+ }
+
+ /**
+ * @deprecated - use field instead
+ */
+ public int sourceStart() {
+ return sourceStart;
+ }
+
+ public static String tabString(int tab) {
+
+ String s = ""; //$NON-NLS-1$
+ for (int i = tab; i > 0; i--)
+ s = s + " "; //$NON-NLS-1$
+ return s;
+ }
+
+ public String toString() {
+
+ return toString(0);
+ }
+
+ public String toString(int tab) {
+
+ return "****" + super.toString() + "****"; //$NON-NLS-2$ //$NON-NLS-1$
+ }
+
+ public void traverse(IAbstractSyntaxTreeVisitor visitor, BlockScope scope) {
+ }
+}
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