Refactory: remove unused classes, imports, fields and methods.
[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / internal / compiler / lookup / SyntheticAccessMethodBinding.java
index f7c0e41..3e2ea6f 100644 (file)
 /*******************************************************************************
- * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
+ * Copyright (c) 2000, 2003 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials 
- * are made available under the terms of the Common Public License v0.5 
+ * 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-v05.html
+ * http://www.eclipse.org/legal/cpl-v10.html
  * 
  * Contributors:
  *     IBM Corporation - initial API and implementation
- ******************************************************************************/
+ *******************************************************************************/
 package net.sourceforge.phpdt.internal.compiler.lookup;
 
+import net.sourceforge.phpdt.core.compiler.CharOperation;
 import net.sourceforge.phpdt.internal.compiler.ast.AbstractMethodDeclaration;
 import net.sourceforge.phpdt.internal.compiler.ast.FieldDeclaration;
-import net.sourceforge.phpdt.internal.compiler.util.CharOperation;
 
 public class SyntheticAccessMethodBinding extends MethodBinding {
 
-       public FieldBinding targetReadField;    // read access to a field
-       public FieldBinding targetWriteField;           // write access to a field
-       public MethodBinding targetMethod;              // method or constructor
+       public FieldBinding targetReadField; // read access to a field
+
+       public FieldBinding targetWriteField; // write access to a field
+
+       public MethodBinding targetMethod; // method or constructor
 
        public int accessType;
 
-       public final static int FieldReadAccess = 1;
-       public final static int FieldWriteAccess = 2;
-       public final static int MethodAccess = 3;
-       public final static int ConstructorAccess = 4;
+       public final static int FieldReadAccess = 1; // field read
+
+       public final static int FieldWriteAccess = 2; // field write
+
+       public final static int MethodAccess = 3; // normal method
+
+       public final static int ConstructorAccess = 4; // constructor
 
-       final static char[] AccessMethodPrefix = { 'a', 'c', 'c', 'e', 's', 's', '$' };
+       public final static int SuperMethodAccess = 5; // super method
+
+       final static char[] AccessMethodPrefix = { 'a', 'c', 'c', 'e', 's', 's',
+                       '$' };
 
        public int sourceStart = 0; // start position of the matching declaration
+
        public int index; // used for sorting access methods in the class file
-public SyntheticAccessMethodBinding(FieldBinding targetField, boolean isReadAccess, ReferenceBinding declaringClass) {
-       this.modifiers = AccDefault | AccStatic | AccSynthetic;
-       SourceTypeBinding declaringSourceType = (SourceTypeBinding) declaringClass;
-       SyntheticAccessMethodBinding[] knownAccessMethods = declaringSourceType.syntheticAccessMethods();
-       int methodId = knownAccessMethods == null ? 0 : knownAccessMethods.length;
-       this.index = methodId;
-       this.selector = CharOperation.concat(AccessMethodPrefix, String.valueOf(methodId).toCharArray());
-       if (isReadAccess) {
-               this.returnType = targetField.type;
-               if (targetField.isStatic()) {
-                       this.parameters = NoParameters;
-               } else {
-                       this.parameters = new TypeBinding[1];
-                       this.parameters[0] = declaringSourceType;
-               }
-               this.targetReadField = targetField;
-               this.accessType = FieldReadAccess;
-       } else {
-               this.returnType = VoidBinding;
-               if (targetField.isStatic()) {
-                       this.parameters = new TypeBinding[1];
-                       this.parameters[0] = targetField.type;
+
+       public SyntheticAccessMethodBinding(FieldBinding targetField,
+                       boolean isReadAccess, ReferenceBinding declaringClass) {
+
+               this.modifiers = AccDefault | AccStatic;// | AccSynthetic;
+               SourceTypeBinding declaringSourceType = (SourceTypeBinding) declaringClass;
+               SyntheticAccessMethodBinding[] knownAccessMethods = declaringSourceType
+                               .syntheticAccessMethods();
+               int methodId = knownAccessMethods == null ? 0
+                               : knownAccessMethods.length;
+               this.index = methodId;
+               this.selector = CharOperation.concat(AccessMethodPrefix, String
+                               .valueOf(methodId).toCharArray());
+               if (isReadAccess) {
+                       this.returnType = targetField.type;
+                       if (targetField.isStatic()) {
+                               this.parameters = NoParameters;
+                       } else {
+                               this.parameters = new TypeBinding[1];
+                               this.parameters[0] = declaringSourceType;
+                       }
+                       this.targetReadField = targetField;
+                       this.accessType = FieldReadAccess;
                } else {
-                       this.parameters = new TypeBinding[2];
-                       this.parameters[0] = declaringSourceType;
-                       this.parameters[1] = targetField.type;
-               }
-               this.targetWriteField = targetField;
-               this.accessType = FieldWriteAccess;
-       }
-       this.thrownExceptions = NoExceptions;
-       this.declaringClass = declaringSourceType;
-
-       // check for method collision
-       boolean needRename;
-       do {
-               check : {
-                       needRename = false;
-                       // check for collision with known methods
-                       MethodBinding[] methods = declaringSourceType.methods;
-                       for (int i = 0, length = methods.length; i < length; i++) {
-                               if (this.selector == methods[i].selector && this.areParametersEqual(methods[i])) {
-                                       needRename = true;
-                                       break check;
-                               }
+                       this.returnType = VoidBinding;
+                       if (targetField.isStatic()) {
+                               this.parameters = new TypeBinding[1];
+                               this.parameters[0] = targetField.type;
+                       } else {
+                               this.parameters = new TypeBinding[2];
+                               this.parameters[0] = declaringSourceType;
+                               this.parameters[1] = targetField.type;
                        }
-                       // check for collision with synthetic accessors
-                       if (knownAccessMethods != null) {
-                               for (int i = 0, length = knownAccessMethods.length; i < length; i++) {
-                                       if (knownAccessMethods[i] == null) continue;
-                                       if (this.selector == knownAccessMethods[i].selector && this.areParametersEqual(methods[i])) {
+                       this.targetWriteField = targetField;
+                       this.accessType = FieldWriteAccess;
+               }
+               this.thrownExceptions = NoExceptions;
+               this.declaringClass = declaringSourceType;
+
+               // check for method collision
+               boolean needRename;
+               do {
+                       check: {
+                               needRename = false;
+                               // check for collision with known methods
+                               MethodBinding[] methods = declaringSourceType.methods;
+                               for (int i = 0, length = methods.length; i < length; i++) {
+                                       if (this.selector == methods[i].selector
+                                                       && this.areParametersEqual(methods[i])) {
                                                needRename = true;
                                                break check;
                                        }
                                }
+                               // check for collision with synthetic accessors
+                               if (knownAccessMethods != null) {
+                                       for (int i = 0, length = knownAccessMethods.length; i < length; i++) {
+                                               if (knownAccessMethods[i] == null)
+                                                       continue;
+                                               if (this.selector == knownAccessMethods[i].selector
+                                                               && this.areParametersEqual(methods[i])) {
+                                                       needRename = true;
+                                                       break check;
+                                               }
+                                       }
+                               }
                        }
-               }
-               if (needRename) { // retry with a selector postfixed by a growing methodId
-                       this.selector(CharOperation.concat(AccessMethodPrefix, String.valueOf(++methodId).toCharArray()));
-               }
-       } while (needRename);
-
-       // retrieve sourceStart position for the target field for line number attributes
-       FieldDeclaration[] fieldDecls = declaringSourceType.scope.referenceContext.fields;
-       if (fieldDecls != null) {
-               for (int i = 0, max = fieldDecls.length; i < max; i++) {
-                       if (fieldDecls[i].binding == targetField) {
-                               this.sourceStart = fieldDecls[i].sourceStart;
-                               return;
+                       if (needRename) { // retry with a selector postfixed by a growing
+                                                               // methodId
+                               this.selector(CharOperation.concat(AccessMethodPrefix, String
+                                               .valueOf(++methodId).toCharArray()));
                        }
-               }
-       }
+               } while (needRename);
 
-/* did not find the target field declaration - it is a synthetic one
-       public class A {
-               public class B {
-                       public class C {
-                               void foo() {
-                                       System.out.println("A.this = " + A.this);
+               // retrieve sourceStart position for the target field for line number
+               // attributes
+               FieldDeclaration[] fieldDecls = declaringSourceType.scope.referenceContext.fields;
+               if (fieldDecls != null) {
+                       for (int i = 0, max = fieldDecls.length; i < max; i++) {
+                               if (fieldDecls[i].binding == targetField) {
+                                       this.sourceStart = fieldDecls[i].sourceStart;
+                                       return;
                                }
                        }
                }
-               public static void main(String args[]) {
-                       new A().new B().new C().foo();
-               }
-       }       
-*/
-       // We now at this point - per construction - it is for sure an enclosing instance, we are going to
-       // show the target field type declaration location.
-       this.sourceStart = declaringSourceType.scope.referenceContext.sourceStart; // use the target declaring class name position instead
-}
-public SyntheticAccessMethodBinding(MethodBinding targetMethod, ReferenceBinding receiverType) {
 
-       if (targetMethod.isConstructor()) {
-               this.initializeConstructorAccessor(targetMethod);
-       } else {
-               this.initializeMethodAccessor(targetMethod, receiverType);
+               /*
+                * did not find the target field declaration - it is a synthetic one
+                * public class A { public class B { public class C { void foo() {
+                * System.out.println("A.this = " + A.this); } } } public static void
+                * main(String args[]) { new A().new B().new C().foo(); } }
+                */
+               // We now at this point - per construction - it is for sure an enclosing
+               // instance, we are going to
+               // show the target field type declaration location.
+               this.sourceStart = declaringSourceType.scope.referenceContext.sourceStart; // use
+                                                                                                                                                                       // the
+                                                                                                                                                                       // target
+                                                                                                                                                                       // declaring
+                                                                                                                                                                       // class
+                                                                                                                                                                       // name
+                                                                                                                                                                       // position
+                                                                                                                                                                       // instead
        }
-}
-/**
- * An constructor accessor is a constructor with an extra argument (declaringClass), in case of
- * collision with an existing constructor, then add again an extra argument (declaringClass again).
- */
- public void initializeConstructorAccessor(MethodBinding targetConstructor) {
-
-       this.targetMethod = targetConstructor;
-       this.modifiers = AccDefault | AccSynthetic;
-       SourceTypeBinding sourceType = 
-               (SourceTypeBinding) targetConstructor.declaringClass; 
-       SyntheticAccessMethodBinding[] knownAccessMethods = 
-               sourceType.syntheticAccessMethods(); 
-       this.index = knownAccessMethods == null ? 0 : knownAccessMethods.length;
-
-       this.selector = targetConstructor.selector;
-       this.returnType = targetConstructor.returnType;
-       this.accessType = ConstructorAccess;
-       this.parameters = new TypeBinding[targetConstructor.parameters.length + 1];
-       System.arraycopy(
-               targetConstructor.parameters, 
-               0, 
-               this.parameters, 
-               0, 
-               targetConstructor.parameters.length); 
-       parameters[targetConstructor.parameters.length] = 
-               targetConstructor.declaringClass; 
-       this.thrownExceptions = targetConstructor.thrownExceptions;
-       this.declaringClass = sourceType;
-
-       // check for method collision
-       boolean needRename;
-       do {
-               check : {
-                       needRename = false;
-                       // check for collision with known methods
-                       MethodBinding[] methods = sourceType.methods;
-                       for (int i = 0, length = methods.length; i < length; i++) {
-                               if (this.selector == methods[i].selector
-                                       && this.areParametersEqual(methods[i])) {
-                                       needRename = true;
-                                       break check;
-                               }
-                       }
-                       // check for collision with synthetic accessors
-                       if (knownAccessMethods != null) {
-                               for (int i = 0, length = knownAccessMethods.length; i < length; i++) {
-                                       if (knownAccessMethods[i] == null)
-                                               continue;
-                                       if (this.selector == knownAccessMethods[i].selector
-                                               && this.areParametersEqual(methods[i])) {
+
+       public SyntheticAccessMethodBinding(MethodBinding targetMethod,
+                       boolean isSuperAccess, ReferenceBinding receiverType) {
+
+               if (targetMethod.isConstructor()) {
+                       this.initializeConstructorAccessor(targetMethod);
+               } else {
+                       this.initializeMethodAccessor(targetMethod, isSuperAccess,
+                                       receiverType);
+               }
+       }
+
+       /**
+        * An constructor accessor is a constructor with an extra argument
+        * (declaringClass), in case of collision with an existing constructor, then
+        * add again an extra argument (declaringClass again).
+        */
+       public void initializeConstructorAccessor(MethodBinding targetConstructor) {
+
+               this.targetMethod = targetConstructor;
+               this.modifiers = AccDefault;// | AccSynthetic;
+               SourceTypeBinding sourceType = (SourceTypeBinding) targetConstructor.declaringClass;
+               SyntheticAccessMethodBinding[] knownAccessMethods = sourceType
+                               .syntheticAccessMethods();
+               this.index = knownAccessMethods == null ? 0 : knownAccessMethods.length;
+
+               this.selector = targetConstructor.selector;
+               this.returnType = targetConstructor.returnType;
+               this.accessType = ConstructorAccess;
+               this.parameters = new TypeBinding[targetConstructor.parameters.length + 1];
+               System.arraycopy(targetConstructor.parameters, 0, this.parameters, 0,
+                               targetConstructor.parameters.length);
+               parameters[targetConstructor.parameters.length] = targetConstructor.declaringClass;
+               this.thrownExceptions = targetConstructor.thrownExceptions;
+               this.declaringClass = sourceType;
+
+               // check for method collision
+               boolean needRename;
+               do {
+                       check: {
+                               needRename = false;
+                               // check for collision with known methods
+                               MethodBinding[] methods = sourceType.methods;
+                               for (int i = 0, length = methods.length; i < length; i++) {
+                                       if (this.selector == methods[i].selector
+                                                       && this.areParametersEqual(methods[i])) {
                                                needRename = true;
                                                break check;
                                        }
                                }
+                               // check for collision with synthetic accessors
+                               if (knownAccessMethods != null) {
+                                       for (int i = 0, length = knownAccessMethods.length; i < length; i++) {
+                                               if (knownAccessMethods[i] == null)
+                                                       continue;
+                                               if (this.selector == knownAccessMethods[i].selector
+                                                               && this
+                                                                               .areParametersEqual(knownAccessMethods[i])) {
+                                                       needRename = true;
+                                                       break check;
+                                               }
+                                       }
+                               }
                        }
-               }
-               if (needRename) { // retry with a new extra argument
-                       int length = this.parameters.length;
-                       System.arraycopy(
-                               this.parameters, 
-                               0, 
-                               this.parameters = new TypeBinding[length + 1], 
-                               0, 
-                               length); 
-                       this.parameters[length] = this.declaringClass;
-               }
-       } while (needRename);
-
-       // retrieve sourceStart position for the target method for line number attributes
-       AbstractMethodDeclaration[] methodDecls = 
-               sourceType.scope.referenceContext.methods; 
-       if (methodDecls != null) {
-               for (int i = 0, length = methodDecls.length; i < length; i++) {
-                       if (methodDecls[i].binding == targetConstructor) {
-                               this.sourceStart = methodDecls[i].sourceStart;
-                               return;
+                       if (needRename) { // retry with a new extra argument
+                               int length = this.parameters.length;
+                               System.arraycopy(this.parameters, 0,
+                                               this.parameters = new TypeBinding[length + 1], 0,
+                                               length);
+                               this.parameters[length] = this.declaringClass;
                        }
-               }
-       }
-}
-/**
- * An method accessor is a method with an access$N selector, where N is incremented in case of collisions.
- */
-
-public void initializeMethodAccessor(MethodBinding targetMethod, ReferenceBinding declaringClass) {
-       
-       this.targetMethod = targetMethod;
-       this.modifiers = AccDefault | AccStatic | AccSynthetic;
-       SourceTypeBinding declaringSourceType = (SourceTypeBinding) declaringClass;
-       SyntheticAccessMethodBinding[] knownAccessMethods = declaringSourceType.syntheticAccessMethods();
-       int methodId = knownAccessMethods == null ? 0 : knownAccessMethods.length;
-       this.index = methodId;
-
-       this.selector = CharOperation.concat(AccessMethodPrefix, String.valueOf(methodId).toCharArray());
-       this.returnType = targetMethod.returnType;
-       this.accessType = MethodAccess;
-       
-       if (targetMethod.isStatic()) {
-               this.parameters = targetMethod.parameters;
-       } else {
-               this.parameters = new TypeBinding[targetMethod.parameters.length + 1];
-               this.parameters[0] = declaringSourceType;
-               System.arraycopy(targetMethod.parameters, 0, this.parameters, 1, targetMethod.parameters.length);
-       }
-       this.thrownExceptions = targetMethod.thrownExceptions;
-       this.declaringClass = declaringSourceType;
-
-       // check for method collision
-       boolean needRename;
-       do {
-               check : {
-                       needRename = false;
-                       // check for collision with known methods
-                       MethodBinding[] methods = declaringSourceType.methods;
-                       for (int i = 0, length = methods.length; i < length; i++) {
-                               if (this.selector == methods[i].selector && this.areParametersEqual(methods[i])) {
-                                       needRename = true;
-                                       break check;
+               } while (needRename);
+
+               // retrieve sourceStart position for the target method for line number
+               // attributes
+               AbstractMethodDeclaration[] methodDecls = sourceType.scope.referenceContext.methods;
+               if (methodDecls != null) {
+                       for (int i = 0, length = methodDecls.length; i < length; i++) {
+                               if (methodDecls[i].binding == targetConstructor) {
+                                       this.sourceStart = methodDecls[i].sourceStart;
+                                       return;
                                }
                        }
-                       // check for collision with synthetic accessors
-                       if (knownAccessMethods != null) {
-                               for (int i = 0, length = knownAccessMethods.length; i < length; i++) {
-                                       if (knownAccessMethods[i] == null) continue;
-                                       if (this.selector == knownAccessMethods[i].selector && this.areParametersEqual(methods[i])) {
+               }
+       }
+
+       /**
+        * An method accessor is a method with an access$N selector, where N is
+        * incremented in case of collisions.
+        */
+       public void initializeMethodAccessor(MethodBinding targetMethod,
+                       boolean isSuperAccess, ReferenceBinding declaringClass) {
+
+               this.targetMethod = targetMethod;
+               this.modifiers = AccDefault | AccStatic;// | AccSynthetic;
+               SourceTypeBinding declaringSourceType = (SourceTypeBinding) declaringClass;
+               SyntheticAccessMethodBinding[] knownAccessMethods = declaringSourceType
+                               .syntheticAccessMethods();
+               int methodId = knownAccessMethods == null ? 0
+                               : knownAccessMethods.length;
+               this.index = methodId;
+
+               this.selector = CharOperation.concat(AccessMethodPrefix, String
+                               .valueOf(methodId).toCharArray());
+               this.returnType = targetMethod.returnType;
+               this.accessType = isSuperAccess ? SuperMethodAccess : MethodAccess;
+
+               if (targetMethod.isStatic()) {
+                       this.parameters = targetMethod.parameters;
+               } else {
+                       this.parameters = new TypeBinding[targetMethod.parameters.length + 1];
+                       this.parameters[0] = declaringSourceType;
+                       System.arraycopy(targetMethod.parameters, 0, this.parameters, 1,
+                                       targetMethod.parameters.length);
+               }
+               this.thrownExceptions = targetMethod.thrownExceptions;
+               this.declaringClass = declaringSourceType;
+
+               // check for method collision
+               boolean needRename;
+               do {
+                       check: {
+                               needRename = false;
+                               // check for collision with known methods
+                               MethodBinding[] methods = declaringSourceType.methods;
+                               for (int i = 0, length = methods.length; i < length; i++) {
+                                       if (this.selector == methods[i].selector
+                                                       && this.areParametersEqual(methods[i])) {
                                                needRename = true;
                                                break check;
                                        }
                                }
+                               // check for collision with synthetic accessors
+                               if (knownAccessMethods != null) {
+                                       for (int i = 0, length = knownAccessMethods.length; i < length; i++) {
+                                               if (knownAccessMethods[i] == null)
+                                                       continue;
+                                               if (this.selector == knownAccessMethods[i].selector
+                                                               && this
+                                                                               .areParametersEqual(knownAccessMethods[i])) {
+                                                       needRename = true;
+                                                       break check;
+                                               }
+                                       }
+                               }
                        }
-               }
-               if (needRename) { // retry with a selector & a growing methodId
-                       this.selector(CharOperation.concat(AccessMethodPrefix, String.valueOf(++methodId).toCharArray()));
-               }
-       } while (needRename);
-
-       // retrieve sourceStart position for the target method for line number attributes
-       AbstractMethodDeclaration[] methodDecls = declaringSourceType.scope.referenceContext.methods;
-       if (methodDecls != null) {
-               for (int i = 0, length = methodDecls.length; i < length; i++) {
-                       if (methodDecls[i].binding == targetMethod) {
-                               this.sourceStart = methodDecls[i].sourceStart;
-                               return;
+                       if (needRename) { // retry with a selector & a growing methodId
+                               this.selector(CharOperation.concat(AccessMethodPrefix, String
+                                               .valueOf(++methodId).toCharArray()));
+                       }
+               } while (needRename);
+
+               // retrieve sourceStart position for the target method for line number
+               // attributes
+               AbstractMethodDeclaration[] methodDecls = declaringSourceType.scope.referenceContext.methods;
+               if (methodDecls != null) {
+                       for (int i = 0, length = methodDecls.length; i < length; i++) {
+                               if (methodDecls[i].binding == targetMethod) {
+                                       this.sourceStart = methodDecls[i].sourceStart;
+                                       return;
+                               }
                        }
                }
        }
-}
-protected boolean isConstructorRelated() {
-       return accessType == ConstructorAccess;
-}
+
+       protected boolean isConstructorRelated() {
+               return accessType == ConstructorAccess;
+       }
 }