--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jdt.internal.compiler.ast;
+
+import org.eclipse.jdt.internal.compiler.impl.*;
+import org.eclipse.jdt.internal.compiler.lookup.*;
+import org.eclipse.jdt.internal.compiler.ASTVisitor;
+
+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) BIT USAGE
+ public final static int Bit1 = 0x1; // return type (operator) | name reference kind (name ref) | add assertion (type decl) | useful empty statement (empty statement)
+ public final static int Bit2 = 0x2; // return type (operator) | name reference kind (name ref) | has local type (type, method, field decl)
+ public final static int Bit3 = 0x4; // return type (operator) | name reference kind (name ref) | implicit this (this ref)
+ public final static int Bit4 = 0x8; // return type (operator) | first assignment to local (local decl) | undocumented empty block (block, type and method decl)
+ public final static int Bit5 = 0x10; // value for return (expression) | has all method bodies (unit)
+ public final static int Bit6 = 0x20; // depth (name ref, msg) | only value required (binary expression) | ignore need cast check (cast expression)
+ public final static int Bit7 = 0x40; // depth (name ref, msg) | operator (operator) | need runtime checkcast (cast expression)
+ public final static int Bit8 = 0x80; // depth (name ref, msg) | operator (operator)
+ public final static int Bit9 = 0x100; // depth (name ref, msg) | operator (operator) | is local type (type decl)
+ public final static int Bit10= 0x200; // depth (name ref, msg) | operator (operator) | is anonymous type (type decl)
+ public final static int Bit11 = 0x400; // depth (name ref, msg) | operator (operator) | is member type (type decl)
+ public final static int Bit12 = 0x800; // depth (name ref, msg) | operator (operator)
+ public final static int Bit13 = 0x1000; // depth (name ref, msg)
+ public final static int Bit14 = 0x2000; // strictly assigned (reference lhs)
+ public final static int Bit15 = 0x4000; // is unnecessary cast (expression)
+ public final static int Bit16 = 0x8000; // in javadoc comment (name ref, type ref, msg)
+ public final static int Bit17 = 0x10000; // compound assigned (reference lhs)
+ public final static int Bit18 = 0x20000;
+ public final static int Bit19 = 0x40000;
+ public final static int Bit20 = 0x80000;
+ public final static int Bit21 = 0x100000;
+ public final static int Bit22 = 0x200000; // parenthesis count (expression)
+ public final static int Bit23 = 0x400000; // parenthesis count (expression)
+ public final static int Bit24 = 0x800000; // parenthesis count (expression)
+ public final static int Bit25 = 0x1000000; // parenthesis count (expression)
+ public final static int Bit26 = 0x2000000; // parenthesis count (expression)
+ public final static int Bit27 = 0x4000000; // parenthesis count (expression)
+ public final static int Bit28 = 0x8000000; // parenthesis count (expression)
+ public final static int Bit29 = 0x10000000; // parenthesis count (expression)
+ public final static int Bit30 = 0x20000000; // assignment with no effect (assignment) | elseif (if statement)
+ public final static int Bit31 = 0x40000000; // local declaration reachable (local decl)
+ public final static int Bit32 = 0x80000000; // reachable (statement)
+
+ public final static long Bit32L = 0x80000000L;
+ public final static long Bit33L = 0x100000000L;
+ public final static long Bit34L = 0x200000000L;
+ public final static long Bit35L = 0x400000000L;
+ public final static long Bit36L = 0x800000000L;
+ public final static long Bit37L = 0x1000000000L;
+ public final static long Bit38L = 0x2000000000L;
+ public final static long Bit39L = 0x4000000000L;
+ public final static long Bit40L = 0x8000000000L;
+
+ public int bits = IsReachableMASK; // reachable by default
+
+ // for operators
+ public static final int ReturnTypeIDMASK = Bit1|Bit2|Bit3|Bit4;
+ public static final int OperatorSHIFT = 6; // Bit7 -> Bit12
+ public static final int OperatorMASK = Bit7|Bit8|Bit9|Bit10|Bit11|Bit12; // 6 bits for operator ID
+
+ // for binary expressions
+ public static final int ValueForReturnMASK = Bit5;
+ public static final int OnlyValueRequiredMASK = Bit6;
+
+ // for cast expressions
+ public static final int UnnecessaryCastMask = Bit15;
+ public static final int NeedRuntimeCheckCastMASK = Bit7;
+ public static final int IgnoreNeedForCastCheckMASK = Bit6;
+
+ // for name references
+ public static final int RestrictiveFlagMASK = Bit1|Bit2|Bit3;
+ public static final int FirstAssignmentToLocalMASK = Bit4;
+
+ // for this reference
+ public static final int IsImplicitThisMask = Bit3;
+
+ // for single name references
+ public static final int DepthSHIFT = 5; // Bit6 -> Bit13
+ public static final int DepthMASK = Bit6|Bit7|Bit8|Bit9|Bit10|Bit11|Bit12|Bit13; // 8 bits for actual depth value (max. 255)
+
+ // for statements
+ public static final int IsReachableMASK = Bit32;
+ public static final int IsLocalDeclarationReachableMASK = Bit31;
+
+ // for type declaration
+ public static final int AddAssertionMASK = Bit1;
+ public static final int IsLocalTypeMASK = Bit9;
+ public static final int IsAnonymousTypeMASK = Bit10; // used to test for anonymous
+ public static final int AnonymousAndLocalMask = IsAnonymousTypeMASK | IsLocalTypeMASK; // used to set anonymous marker
+ public static final int IsMemberTypeMASK = Bit11; // local member do not know it is local at parse time (need to look at binding)
+
+ // for type, method and field declarations
+ public static final int HasLocalTypeMASK = Bit2; // cannot conflict with AddAssertionMASK
+
+ // for expression
+ public static final int ParenthesizedSHIFT = 21; // Bit22 -> Bit29
+ public static final int ParenthesizedMASK = Bit22|Bit23|Bit24|Bit25|Bit26|Bit27|Bit28|Bit29; // 8 bits for parenthesis count value (max. 255)
+
+ // for assignment
+ public static final int IsAssignmentWithNoEffectMASK = Bit30;
+
+ // for references on lhs of assignment
+ public static final int IsStrictlyAssignedMASK = Bit14; // set only for true assignments, as opposed to compound ones
+ public static final int IsCompoundAssignedMASK = Bit17; // set only for compound assignments, as opposed to other ones
+
+ // for empty statement
+ public static final int IsUsefulEmptyStatementMASK = Bit1;
+
+ // for block and method declaration
+ public static final int UndocumentedEmptyBlockMASK = Bit4;
+
+ // for compilation unit
+ public static final int HasAllMethodBodies = Bit5;
+
+ // for references in Javadoc comments
+ public static final int InsideJavadoc = Bit16;
+
+ // for if statement
+ public static final int IsElseIfStatement = Bit30;
+
+ public ASTNode() {
+
+ super();
+ }
+
+ 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, boolean isStrictlyAssigned) {
+
+ if (!isStrictlyAssigned && field.isPrivate() && !scope.isDefinedInField(field)) {
+ // ignore cases where field is used from within inside itself
+ field.modifiers |= AccPrivateUsed;
+ }
+
+ if (!field.isViewedAsDeprecated()) return false;
+
+ // inside same unit - no report
+ if (scope.isDefinedInSameUnit(field.declaringClass)) return false;
+
+ // if context is deprecated, may avoid reporting
+ if (!scope.environment().options.reportDeprecationInsideDeprecatedCode && scope.isInsideDeprecatedCode()) return false;
+ return true;
+ }
+
+ public boolean isImplicitThis() {
+
+ return false;
+ }
+
+ /* 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) {
+
+ if (method.isPrivate() && !scope.isDefinedInMethod(method)) {
+ // ignore cases where method is used from within inside itself (e.g. direct recursions)
+ method.modifiers |= AccPrivateUsed;
+ }
+
+ if (!method.isViewedAsDeprecated()) return false;
+
+ // inside same unit - no report
+ if (scope.isDefinedInSameUnit(method.declaringClass)) return false;
+
+ // if context is deprecated, may avoid reporting
+ if (!scope.environment().options.reportDeprecationInsideDeprecatedCode && scope.isInsideDeprecatedCode()) return false;
+ return true;
+ }
+
+ 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;
+
+ if (refType.isPrivate() && !scope.isDefinedInType(refType)) {
+ // ignore cases where type is used from within inside itself
+ refType.modifiers |= AccPrivateUsed;
+ }
+
+ if (!refType.isViewedAsDeprecated()) return false;
+
+ // inside same unit - no report
+ if (scope.isDefinedInSameUnit(refType)) return false;
+
+ // if context is deprecated, may avoid reporting
+ if (!scope.environment().options.reportDeprecationInsideDeprecatedCode && scope.isInsideDeprecatedCode()) return false;
+ return true;
+ }
+
+ public abstract StringBuffer print(int indent, StringBuffer output);
+
+ public static StringBuffer printIndent(int indent, StringBuffer output) {
+
+ for (int i = indent; i > 0; i--) output.append(" "); //$NON-NLS-1$
+ return output;
+ }
+
+ public static StringBuffer printModifiers(int modifiers, StringBuffer output) {
+
+ if ((modifiers & AccPublic) != 0)
+ output.append("public "); //$NON-NLS-1$
+ if ((modifiers & AccPrivate) != 0)
+ output.append("private "); //$NON-NLS-1$
+ if ((modifiers & AccProtected) != 0)
+ output.append("protected "); //$NON-NLS-1$
+ if ((modifiers & AccStatic) != 0)
+ output.append("static "); //$NON-NLS-1$
+ if ((modifiers & AccFinal) != 0)
+ output.append("final "); //$NON-NLS-1$
+ if ((modifiers & AccSynchronized) != 0)
+ output.append("synchronized "); //$NON-NLS-1$
+ if ((modifiers & AccVolatile) != 0)
+ output.append("volatile "); //$NON-NLS-1$
+ if ((modifiers & AccTransient) != 0)
+ output.append("transient "); //$NON-NLS-1$
+ if ((modifiers & AccNative) != 0)
+ output.append("native "); //$NON-NLS-1$
+ if ((modifiers & AccAbstract) != 0)
+ output.append("abstract "); //$NON-NLS-1$
+ return output;
+ }
+ public int sourceStart() {
+ return this.sourceStart;
+ }
+ public int sourceEnd() {
+ return this.sourceEnd;
+ }
+ public String toString() {
+
+ return print(0, new StringBuffer(30)).toString();
+ }
+
+ public void traverse(ASTVisitor visitor, BlockScope scope) {
+ // do nothing by default
+ }
+}
projects / org.ibex.tool.git / blobdiff