--- /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.lookup;
+
+public class NestedTypeBinding extends SourceTypeBinding {
+
+ public SourceTypeBinding enclosingType;
+
+ public SyntheticArgumentBinding[] enclosingInstances;
+ public SyntheticArgumentBinding[] outerLocalVariables;
+ public int enclosingInstancesSlotSize; // amount of slots used by synthetic enclosing instances
+ public int outerLocalVariablesSlotSize; // amount of slots used by synthetic outer local variables
+
+ public NestedTypeBinding(char[][] typeName, ClassScope scope, SourceTypeBinding enclosingType) {
+ super(typeName, enclosingType.fPackage, scope);
+ this.tagBits |= IsNestedType;
+ this.enclosingType = enclosingType;
+ }
+
+ /* Add a new synthetic argument for <actualOuterLocalVariable>.
+ * Answer the new argument or the existing argument if one already existed.
+ */
+ public SyntheticArgumentBinding addSyntheticArgument(LocalVariableBinding actualOuterLocalVariable) {
+ SyntheticArgumentBinding synthLocal = null;
+
+ if (outerLocalVariables == null) {
+ synthLocal = new SyntheticArgumentBinding(actualOuterLocalVariable);
+ outerLocalVariables = new SyntheticArgumentBinding[] {synthLocal};
+ } else {
+ int size = outerLocalVariables.length;
+ int newArgIndex = size;
+ for (int i = size; --i >= 0;) { // must search backwards
+ if (outerLocalVariables[i].actualOuterLocalVariable == actualOuterLocalVariable)
+ return outerLocalVariables[i]; // already exists
+ if (outerLocalVariables[i].id > actualOuterLocalVariable.id)
+ newArgIndex = i;
+ }
+ SyntheticArgumentBinding[] synthLocals = new SyntheticArgumentBinding[size + 1];
+ System.arraycopy(outerLocalVariables, 0, synthLocals, 0, newArgIndex);
+ synthLocals[newArgIndex] = synthLocal = new SyntheticArgumentBinding(actualOuterLocalVariable);
+ System.arraycopy(outerLocalVariables, newArgIndex, synthLocals, newArgIndex + 1, size - newArgIndex);
+ outerLocalVariables = synthLocals;
+ }
+ //System.out.println("Adding synth arg for local var: " + new String(actualOuterLocalVariable.name) + " to: " + new String(this.readableName()));
+ if (scope.referenceCompilationUnit().isPropagatingInnerClassEmulation)
+ this.updateInnerEmulationDependents();
+ return synthLocal;
+ }
+
+ /* Add a new synthetic argument for <enclosingType>.
+ * Answer the new argument or the existing argument if one already existed.
+ */
+ public SyntheticArgumentBinding addSyntheticArgument(ReferenceBinding targetEnclosingType) {
+ SyntheticArgumentBinding synthLocal = null;
+ if (enclosingInstances == null) {
+ synthLocal = new SyntheticArgumentBinding(targetEnclosingType);
+ enclosingInstances = new SyntheticArgumentBinding[] {synthLocal};
+ } else {
+ int size = enclosingInstances.length;
+ int newArgIndex = size;
+ for (int i = size; --i >= 0;) {
+ if (enclosingInstances[i].type == targetEnclosingType)
+ return enclosingInstances[i]; // already exists
+ if (this.enclosingType() == targetEnclosingType)
+ newArgIndex = 0;
+ }
+ SyntheticArgumentBinding[] newInstances = new SyntheticArgumentBinding[size + 1];
+ System.arraycopy(enclosingInstances, 0, newInstances, newArgIndex == 0 ? 1 : 0, size);
+ newInstances[newArgIndex] = synthLocal = new SyntheticArgumentBinding(targetEnclosingType);
+ enclosingInstances = newInstances;
+ }
+ //System.out.println("Adding synth arg for enclosing type: " + new String(enclosingType.readableName()) + " to: " + new String(this.readableName()));
+ if (scope.referenceCompilationUnit().isPropagatingInnerClassEmulation)
+ this.updateInnerEmulationDependents();
+ return synthLocal;
+ }
+
+ /* Add a new synthetic argument and field for <actualOuterLocalVariable>.
+ * Answer the new argument or the existing argument if one already existed.
+ */
+ public SyntheticArgumentBinding addSyntheticArgumentAndField(LocalVariableBinding actualOuterLocalVariable) {
+ SyntheticArgumentBinding synthLocal = addSyntheticArgument(actualOuterLocalVariable);
+ if (synthLocal == null) return null;
+
+ if (synthLocal.matchingField == null)
+ synthLocal.matchingField = addSyntheticField(actualOuterLocalVariable);
+ return synthLocal;
+ }
+
+ /* Add a new synthetic argument and field for <enclosingType>.
+ * Answer the new argument or the existing argument if one already existed.
+ */
+ public SyntheticArgumentBinding addSyntheticArgumentAndField(ReferenceBinding targetEnclosingType) {
+ SyntheticArgumentBinding synthLocal = addSyntheticArgument(targetEnclosingType);
+ if (synthLocal == null) return null;
+
+ if (synthLocal.matchingField == null)
+ synthLocal.matchingField = addSyntheticField(targetEnclosingType);
+ return synthLocal;
+ }
+
+ /**
+ * Compute the resolved positions for all the synthetic arguments
+ */
+ final public void computeSyntheticArgumentSlotSizes() {
+
+ int slotSize = 0;
+ // insert enclosing instances first, followed by the outerLocals
+ int enclosingInstancesCount = this.enclosingInstances == null ? 0 : this.enclosingInstances.length;
+ for (int i = 0; i < enclosingInstancesCount; i++){
+ SyntheticArgumentBinding argument = this.enclosingInstances[i];
+ // position the enclosing instance synthetic arg
+ argument.resolvedPosition = slotSize + 1; // shift by 1 to leave room for aload0==this
+ if (slotSize + 1 > 0xFF) { // no more than 255 words of arguments
+ this.scope.problemReporter().noMoreAvailableSpaceForArgument(argument, this.scope.referenceType());
+ }
+ if ((argument.type == LongBinding) || (argument.type == DoubleBinding)){
+ slotSize += 2;
+ } else {
+ slotSize ++;
+ }
+ }
+ this.enclosingInstancesSlotSize = slotSize;
+
+ slotSize = 0; // reset, outer local are not positionned yet, since will be appended to user arguments
+ int outerLocalsCount = this.outerLocalVariables == null ? 0 : this.outerLocalVariables.length;
+ for (int i = 0; i < outerLocalsCount; i++){
+ SyntheticArgumentBinding argument = this.outerLocalVariables[i];
+ // do NOT position the outerlocal synthetic arg yet, since will be appended to user arguments
+ if ((argument.type == LongBinding) || (argument.type == DoubleBinding)){
+ slotSize += 2;
+ } else {
+ slotSize ++;
+ }
+ }
+ this.outerLocalVariablesSlotSize = slotSize;
+ }
+
+ /* Answer the receiver's enclosing type... null if the receiver is a top level type.
+ */
+ public ReferenceBinding enclosingType() {
+
+ return enclosingType;
+ }
+
+ /* Answer the synthetic argument for <actualOuterLocalVariable> or null if one does not exist.
+ */
+ public SyntheticArgumentBinding getSyntheticArgument(LocalVariableBinding actualOuterLocalVariable) {
+
+ if (outerLocalVariables == null) return null; // is null if no outer local variables are known
+
+ for (int i = outerLocalVariables.length; --i >= 0;)
+ if (outerLocalVariables[i].actualOuterLocalVariable == actualOuterLocalVariable)
+ return outerLocalVariables[i];
+ return null;
+ }
+
+ public SyntheticArgumentBinding[] syntheticEnclosingInstances() {
+ return enclosingInstances; // is null if no enclosing instances are required
+ }
+
+ public ReferenceBinding[] syntheticEnclosingInstanceTypes() {
+ if (enclosingInstances == null)
+ return null;
+
+ int length = enclosingInstances.length;
+ ReferenceBinding types[] = new ReferenceBinding[length];
+ for (int i = 0; i < length; i++)
+ types[i] = (ReferenceBinding) enclosingInstances[i].type;
+ return types;
+ }
+
+ public SyntheticArgumentBinding[] syntheticOuterLocalVariables() {
+
+ return outerLocalVariables; // is null if no outer locals are required
+ }
+
+ /*
+ * Trigger the dependency mechanism forcing the innerclass emulation
+ * to be propagated to all dependent source types.
+ */
+ public void updateInnerEmulationDependents() {
+ // nothing to do in general, only local types are doing anything
+ }
+
+ /* Answer the synthetic argument for <targetEnclosingType> or null if one does not exist.
+ */
+ public SyntheticArgumentBinding getSyntheticArgument(ReferenceBinding targetEnclosingType, boolean onlyExactMatch) {
+
+ if (enclosingInstances == null) return null; // is null if no enclosing instances are known
+
+ // exact match
+ for (int i = enclosingInstances.length; --i >= 0;)
+ if (enclosingInstances[i].type == targetEnclosingType)
+ if (enclosingInstances[i].actualOuterLocalVariable == null)
+ return enclosingInstances[i];
+
+ // type compatibility : to handle cases such as
+ // class T { class M{}}
+ // class S extends T { class N extends M {}} --> need to use S as a default enclosing instance for the super constructor call in N().
+ if (!onlyExactMatch){
+ for (int i = enclosingInstances.length; --i >= 0;)
+ if (enclosingInstances[i].actualOuterLocalVariable == null)
+ if (targetEnclosingType.isSuperclassOf((ReferenceBinding) enclosingInstances[i].type))
+ return enclosingInstances[i];
+ }
+ return null;
+ }
+}
projects / org.ibex.tool.git / blobdiff