-/*******************************************************************************
- * 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;
+import java.util.List;
-public abstract class AstNode implements BaseTypes, CompilerModifiers, TypeConstants, TypeIds {
-
- public int sourceStart, sourceEnd;
+/**
+ * It will be the mother of our own ast tree for php just like the ast tree of Eclipse.
+ * @author Matthieu Casanova
+ */
+public abstract class AstNode {
- //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() {
+ /** Starting and ending position of the node in the sources. */
+ public int sourceStart, sourceEnd;
+ protected 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) {
- }
-}
\ No newline at end of file
+ /**
+ * Create a node giving starting and ending offset.
+ * @param sourceStart starting offset
+ * @param sourceEnd ending offset
+ */
+ protected AstNode(final int sourceStart, final int sourceEnd) {
+ this.sourceStart = sourceStart;
+ this.sourceEnd = sourceEnd;
+ }
+
+ /**
+ * Add some tabulations.
+ * @param tab the number of tabulations
+ * @return a String containing some spaces
+ */
+ public static String tabString(final int tab) {
+ final StringBuffer s = new StringBuffer(2 * tab);
+ for (int i = tab; i > 0; i--) {
+ s.append(" "); //$NON-NLS-1$
+ }
+ return s.toString();
+ }
+
+ /**
+ * Return the object into String.
+ * It should be overriden
+ * @return a String
+ */
+ public String toString() {
+ return "****" + super.toString() + "****"; //$NON-NLS-2$ //$NON-NLS-1$
+ }
+
+ /**
+ * Return the object into String.
+ * @param tab how many tabs (not used here
+ * @return a String
+ */
+ public abstract String toString(int tab);
+
+ /**
+ * Get the variables from outside (parameters, globals ...)
+ * @param list the list where we will put variables
+ */
+ public abstract void getOutsideVariable(List list);
+
+ /**
+ * get the modified variables.
+ * @param list the list where we will put variables
+ */
+ public abstract void getModifiedVariable(List list);
+
+ /**
+ * Get the variables used.
+ * @param list the list where we will put variables
+ */
+ public abstract void getUsedVariable(List list);
+
+ /**
+ * This method will analyze the code.
+ * by default it will do nothing
+ */
+ public void analyzeCode() {}
+
+ /**
+ * Check if the array array contains the object o.
+ * @param array an array
+ * @param o an obejct
+ * @return true if the array contained the object o
+ */
+ public final boolean arrayContains(final Object[] array, final Object o) {
+ for (int i = 0; i < array.length; i++) {
+ if (array[i].equals(o)) {
+ return true;
+ }
+ }
+ return false;
+ }
+}
git://git.phpeclipse.com / phpeclipse.git / blobdiff