--- /dev/null
+/*******************************************************************************
+ * 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 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 net.sourceforge.phpdt.internal.compiler.ast;
+
+import net.sourceforge.phpdt.internal.compiler.IAbstractSyntaxTreeVisitor;
+import net.sourceforge.phpdt.internal.compiler.flow.FlowContext;
+import net.sourceforge.phpdt.internal.compiler.flow.FlowInfo;
+import net.sourceforge.phpdt.internal.compiler.impl.Constant;
+import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
+import net.sourceforge.phpdt.internal.compiler.lookup.FieldBinding;
+import net.sourceforge.phpdt.internal.compiler.lookup.LocalVariableBinding;
+import net.sourceforge.phpdt.internal.compiler.lookup.MethodBinding;
+import net.sourceforge.phpdt.internal.compiler.lookup.MethodScope;
+import net.sourceforge.phpdt.internal.compiler.lookup.ProblemFieldBinding;
+import net.sourceforge.phpdt.internal.compiler.lookup.ProblemReferenceBinding;
+import net.sourceforge.phpdt.internal.compiler.lookup.SourceTypeBinding;
+import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
+import net.sourceforge.phpdt.internal.compiler.lookup.VariableBinding;
+
+public class SingleNameReference extends NameReference implements OperatorIds {
+ public char[] token;
+
+ public MethodBinding[] syntheticAccessors; // [0]=read accessor [1]=write accessor
+ public static final int READ = 0;
+ public static final int WRITE = 1;
+
+public SingleNameReference(char[] source, long pos) {
+ super();
+ token = source;
+ sourceStart = (int) (pos >>> 32);
+ sourceEnd = (int) pos;
+}
+public FlowInfo analyseAssignment(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo, Assignment assignment, boolean isCompound) {
+
+ // compound assignment extra work
+ if (isCompound) { // check the variable part is initialized if blank final
+ switch (bits & RestrictiveFlagMASK) {
+ case FIELD : // reading a field
+ FieldBinding fieldBinding;
+ if ((fieldBinding = (FieldBinding) binding).isBlankFinal()
+ && currentScope.allowBlankFinalFieldAssignment(fieldBinding)) {
+ if (!flowInfo.isDefinitelyAssigned(fieldBinding)) {
+ currentScope.problemReporter().uninitializedBlankFinalField(fieldBinding, this);
+ }
+ }
+ manageSyntheticReadAccessIfNecessary(currentScope);
+ break;
+// case LOCAL : // reading a local variable
+// // check if assigning a final blank field
+// LocalVariableBinding localBinding;
+// if (!flowInfo.isDefinitelyAssigned(localBinding = (LocalVariableBinding) binding)) {
+// currentScope.problemReporter().uninitializedLocalVariable(localBinding, this);
+// // we could improve error msg here telling "cannot use compound assignment on final local variable"
+// }
+// if (flowInfo.isReachable()) {
+// localBinding.useFlag = LocalVariableBinding.USED;
+// } else if (localBinding.useFlag == LocalVariableBinding.UNUSED) {
+// localBinding.useFlag = LocalVariableBinding.FAKE_USED;
+// }
+ }
+ }
+ if (assignment.expression != null) {
+ flowInfo = assignment.expression.analyseCode(currentScope, flowContext, flowInfo).unconditionalInits();
+ }
+ switch (bits & RestrictiveFlagMASK) {
+ case FIELD : // assigning to a field
+ manageSyntheticWriteAccessIfNecessary(currentScope);
+
+ // check if assigning a final field
+ FieldBinding fieldBinding;
+ if ((fieldBinding = (FieldBinding) binding).isFinal()) {
+ // inside a context where allowed
+ if (!isCompound && fieldBinding.isBlankFinal() && currentScope.allowBlankFinalFieldAssignment(fieldBinding)) {
+ if (flowInfo.isPotentiallyAssigned(fieldBinding)) {
+ currentScope.problemReporter().duplicateInitializationOfBlankFinalField(fieldBinding, this);
+ } else {
+ flowContext.recordSettingFinal(fieldBinding, this);
+ }
+ flowInfo.markAsDefinitelyAssigned(fieldBinding);
+ } else {
+ currentScope.problemReporter().cannotAssignToFinalField(fieldBinding, this);
+ }
+ }
+ break;
+ case LOCAL : // assigning to a local variable
+ LocalVariableBinding localBinding = (LocalVariableBinding) binding;
+ if (!flowInfo.isDefinitelyAssigned(localBinding)){// for local variable debug attributes
+ bits |= FirstAssignmentToLocalMASK;
+ } else {
+ bits &= ~FirstAssignmentToLocalMASK;
+ }
+ if (localBinding.isFinal()) {
+ if ((bits & DepthMASK) == 0) {
+ if (isCompound || !localBinding.isBlankFinal()){
+ currentScope.problemReporter().cannotAssignToFinalLocal(localBinding, this);
+ } else if (flowInfo.isPotentiallyAssigned(localBinding)) {
+ currentScope.problemReporter().duplicateInitializationOfFinalLocal(localBinding, this);
+ } else {
+ flowContext.recordSettingFinal(localBinding, this);
+ }
+ } else {
+ currentScope.problemReporter().cannotAssignToFinalOuterLocal(localBinding, this);
+ }
+ }
+ flowInfo.markAsDefinitelyAssigned(localBinding);
+ }
+ manageEnclosingInstanceAccessIfNecessary(currentScope);
+ return flowInfo;
+}
+public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo) {
+ return analyseCode(currentScope, flowContext, flowInfo, true);
+}
+public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo, boolean valueRequired) {
+
+ switch (bits & RestrictiveFlagMASK) {
+ case FIELD : // reading a field
+ if (valueRequired) {
+ manageSyntheticReadAccessIfNecessary(currentScope);
+ }
+ // check if reading a final blank field
+ FieldBinding fieldBinding;
+ if ((fieldBinding = (FieldBinding) binding).isBlankFinal()
+ && currentScope.allowBlankFinalFieldAssignment(fieldBinding)) {
+ if (!flowInfo.isDefinitelyAssigned(fieldBinding)) {
+ currentScope.problemReporter().uninitializedBlankFinalField(fieldBinding, this);
+ }
+ }
+ break;
+// case LOCAL : // reading a local variable
+// LocalVariableBinding localBinding;
+// if (!flowInfo.isDefinitelyAssigned(localBinding = (LocalVariableBinding) binding)) {
+// currentScope.problemReporter().uninitializedLocalVariable(localBinding, this);
+// }
+// if (flowInfo.isReachable()) {
+// localBinding.useFlag = LocalVariableBinding.USED;
+// } else if (localBinding.useFlag == LocalVariableBinding.UNUSED) {
+// localBinding.useFlag = LocalVariableBinding.FAKE_USED;
+// }
+ }
+ if (valueRequired) {
+ manageEnclosingInstanceAccessIfNecessary(currentScope);
+ }
+ return flowInfo;
+}
+public TypeBinding checkFieldAccess(BlockScope scope) {
+
+ FieldBinding fieldBinding = (FieldBinding) binding;
+
+ bits &= ~RestrictiveFlagMASK; // clear bits
+ bits |= FIELD;
+ if (!((FieldBinding) binding).isStatic()) {
+ // must check for the static status....
+ if (scope.methodScope().isStatic) {
+ scope.problemReporter().staticFieldAccessToNonStaticVariable(this, fieldBinding);
+ constant = NotAConstant;
+ return fieldBinding.type;
+ }
+ }
+ constant = FieldReference.getConstantFor(fieldBinding, this, true, scope);
+
+ if (isFieldUseDeprecated(fieldBinding, scope))
+ scope.problemReporter().deprecatedField(fieldBinding, this);
+
+ MethodScope ms = scope.methodScope();
+ if ((this.bits & IsStrictlyAssignedMASK) == 0
+ && ms.enclosingSourceType() == fieldBinding.declaringClass
+ && ms.fieldDeclarationIndex != MethodScope.NotInFieldDecl
+ && fieldBinding.id >= ms.fieldDeclarationIndex) {
+ //if the field is static and ms is not .... then it is valid
+ if (!fieldBinding.isStatic() || ms.isStatic)
+ scope.problemReporter().forwardReference(this, 0, scope.enclosingSourceType());
+ }
+ //====================================================
+
+ return fieldBinding.type;
+
+}
+//public void generateAssignment(BlockScope currentScope, CodeStream codeStream, Assignment assignment, boolean valueRequired) {
+//
+// // optimizing assignment like: i = i + 1 or i = 1 + i
+// if (assignment.expression.isCompactableOperation()) {
+// BinaryExpression operation = (BinaryExpression) assignment.expression;
+// SingleNameReference variableReference;
+// if ((operation.left instanceof SingleNameReference) && ((variableReference = (SingleNameReference) operation.left).binding == binding)) {
+// // i = i + value, then use the variable on the right hand side, since it has the correct implicit conversion
+// variableReference.generateCompoundAssignment(currentScope, codeStream, syntheticAccessors == null ? null : syntheticAccessors[WRITE], operation.right, (operation.bits & OperatorMASK) >> OperatorSHIFT, operation.left.implicitConversion /*should be equivalent to no conversion*/, valueRequired);
+// return;
+// }
+// int operator = (operation.bits & OperatorMASK) >> OperatorSHIFT;
+// if ((operation.right instanceof SingleNameReference)
+// && ((operator == PLUS) || (operator == MULTIPLY)) // only commutative operations
+// && ((variableReference = (SingleNameReference) operation.right).binding == binding)
+// && (operation.left.constant != NotAConstant) // exclude non constant expressions, since could have side-effect
+// && ((operation.left.implicitConversion >> 4) != T_String) // exclude string concatenation which would occur backwards
+// && ((operation.right.implicitConversion >> 4) != T_String)) { // exclude string concatenation which would occur backwards
+// // i = value + i, then use the variable on the right hand side, since it has the correct implicit conversion
+// variableReference.generateCompoundAssignment(currentScope, codeStream, syntheticAccessors == null ? null : syntheticAccessors[WRITE], operation.left, operator, operation.right.implicitConversion /*should be equivalent to no conversion*/, valueRequired);
+// return;
+// }
+// }
+// switch (bits & RestrictiveFlagMASK) {
+// case FIELD : // assigning to a field
+// FieldBinding fieldBinding;
+// if (!(fieldBinding = (FieldBinding) this.codegenBinding).isStatic()) { // need a receiver?
+// if ((bits & DepthMASK) != 0) {
+// ReferenceBinding targetType = currentScope.enclosingSourceType().enclosingTypeAt((bits & DepthMASK) >> DepthSHIFT);
+// Object[] emulationPath = currentScope.getEmulationPath(targetType, true /*only exact match*/, false/*consider enclosing arg*/);
+// codeStream.generateOuterAccess(emulationPath, this, targetType, currentScope);
+// } else {
+// this.generateReceiver(codeStream);
+// }
+// }
+// assignment.expression.generateCode(currentScope, codeStream, true);
+// fieldStore(codeStream, fieldBinding, syntheticAccessors == null ? null : syntheticAccessors[WRITE], valueRequired);
+// if (valueRequired) {
+// codeStream.generateImplicitConversion(assignment.implicitConversion);
+// }
+// return;
+// case LOCAL : // assigning to a local variable
+// LocalVariableBinding localBinding = (LocalVariableBinding) this.codegenBinding;
+// if (localBinding.resolvedPosition != -1) {
+// assignment.expression.generateCode(currentScope, codeStream, true);
+// } else {
+// if (assignment.expression.constant != NotAConstant) {
+// // assigning an unused local to a constant value = no actual assignment is necessary
+// if (valueRequired) {
+// codeStream.generateConstant(assignment.expression.constant, assignment.implicitConversion);
+// }
+// } else {
+// assignment.expression.generateCode(currentScope, codeStream, true);
+// /* Even though the value may not be required, we force it to be produced, and discard it later
+// on if it was actually not necessary, so as to provide the same behavior as JDK1.2beta3. */
+// if (valueRequired) {
+// codeStream.generateImplicitConversion(assignment.implicitConversion); // implicit conversion
+// } else {
+// if ((localBinding.type == LongBinding) || (localBinding.type == DoubleBinding)) {
+// codeStream.pop2();
+// } else {
+// codeStream.pop();
+// }
+// }
+// }
+// return;
+// }
+// // 26903, need extra cast to store null in array local var
+// if (localBinding.type.isArrayType()
+// && (assignment.expression.resolvedType == NullBinding // arrayLoc = null
+// || ((assignment.expression instanceof CastExpression) // arrayLoc = (type[])null
+// && (((CastExpression)assignment.expression).innermostCastedExpression().resolvedType == NullBinding)))){
+// codeStream.checkcast(localBinding.type);
+// }
+//
+// // normal local assignment (since cannot store in outer local which are final locations)
+// codeStream.store(localBinding, valueRequired);
+// if ((bits & FirstAssignmentToLocalMASK) != 0) { // for local variable debug attributes
+// localBinding.recordInitializationStartPC(codeStream.position);
+// }
+// // implicit conversion
+// if (valueRequired) {
+// codeStream.generateImplicitConversion(assignment.implicitConversion);
+// }
+// }
+//}
+//public void generateCode(BlockScope currentScope, CodeStream codeStream, boolean valueRequired) {
+// int pc = codeStream.position;
+// if (constant != NotAConstant) {
+// if (valueRequired) {
+// codeStream.generateConstant(constant, implicitConversion);
+// }
+// } else {
+// switch (bits & RestrictiveFlagMASK) {
+// case FIELD : // reading a field
+// FieldBinding fieldBinding;
+// if (valueRequired) {
+// if ((fieldBinding = (FieldBinding) this.codegenBinding).constant == NotAConstant) { // directly use inlined value for constant fields
+// boolean isStatic;
+// if (!(isStatic = fieldBinding.isStatic())) {
+// if ((bits & DepthMASK) != 0) {
+// ReferenceBinding targetType = currentScope.enclosingSourceType().enclosingTypeAt((bits & DepthMASK) >> DepthSHIFT);
+// Object[] emulationPath = currentScope.getEmulationPath(targetType, true /*only exact match*/, false/*consider enclosing arg*/);
+// codeStream.generateOuterAccess(emulationPath, this, targetType, currentScope);
+// } else {
+// generateReceiver(codeStream);
+// }
+// }
+// // managing private access
+// if ((syntheticAccessors == null) || (syntheticAccessors[READ] == null)) {
+// if (isStatic) {
+// codeStream.getstatic(fieldBinding);
+// } else {
+// codeStream.getfield(fieldBinding);
+// }
+// } else {
+// codeStream.invokestatic(syntheticAccessors[READ]);
+// }
+// codeStream.generateImplicitConversion(implicitConversion);
+// } else { // directly use the inlined value
+// codeStream.generateConstant(fieldBinding.constant, implicitConversion);
+// }
+// }
+// break;
+// case LOCAL : // reading a local
+// LocalVariableBinding localBinding = (LocalVariableBinding) this.codegenBinding;
+// if (valueRequired) {
+// // outer local?
+// if ((bits & DepthMASK) != 0) {
+// // outer local can be reached either through a synthetic arg or a synthetic field
+// VariableBinding[] path = currentScope.getEmulationPath(localBinding);
+// codeStream.generateOuterAccess(path, this, localBinding, currentScope);
+// } else {
+// // regular local variable read
+// codeStream.load(localBinding);
+// }
+// codeStream.generateImplicitConversion(implicitConversion);
+// }
+// }
+// }
+// codeStream.recordPositionsFrom(pc, this.sourceStart);
+//}
+///*
+// * Regular API for compound assignment, relies on the fact that there is only one reference to the
+// * variable, which carries both synthetic read/write accessors.
+// * The APIs with an extra argument is used whenever there are two references to the same variable which
+// * are optimized in one access: e.g "a = a + 1" optimized into "a++".
+// */
+//public void generateCompoundAssignment(BlockScope currentScope, CodeStream codeStream, Expression expression, int operator, int assignmentImplicitConversion, boolean valueRequired) {
+//
+// this.generateCompoundAssignment(
+// currentScope,
+// codeStream,
+// syntheticAccessors == null ? null : syntheticAccessors[WRITE],
+// expression,
+// operator,
+// assignmentImplicitConversion,
+// valueRequired);
+//}
+///*
+// * The APIs with an extra argument is used whenever there are two references to the same variable which
+// * are optimized in one access: e.g "a = a + 1" optimized into "a++".
+// */
+//public void generateCompoundAssignment(BlockScope currentScope, CodeStream codeStream, MethodBinding writeAccessor, Expression expression, int operator, int assignmentImplicitConversion, boolean valueRequired) {
+// switch (bits & RestrictiveFlagMASK) {
+// case FIELD : // assigning to a field
+// FieldBinding fieldBinding;
+// if ((fieldBinding = (FieldBinding) this.codegenBinding).isStatic()) {
+// if ((syntheticAccessors == null) || (syntheticAccessors[READ] == null)) {
+// codeStream.getstatic(fieldBinding);
+// } else {
+// codeStream.invokestatic(syntheticAccessors[READ]);
+// }
+// } else {
+// if ((bits & DepthMASK) != 0) {
+// ReferenceBinding targetType = currentScope.enclosingSourceType().enclosingTypeAt((bits & DepthMASK) >> DepthSHIFT);
+// Object[] emulationPath = currentScope.getEmulationPath(targetType, true /*only exact match*/, false/*consider enclosing arg*/);
+// codeStream.generateOuterAccess(emulationPath, this, targetType, currentScope);
+// } else {
+// codeStream.aload_0();
+// }
+// codeStream.dup();
+// if ((syntheticAccessors == null) || (syntheticAccessors[READ] == null)) {
+// codeStream.getfield(fieldBinding);
+// } else {
+// codeStream.invokestatic(syntheticAccessors[READ]);
+// }
+// }
+// break;
+// case LOCAL : // assigning to a local variable (cannot assign to outer local)
+// LocalVariableBinding localBinding = (LocalVariableBinding) this.codegenBinding;
+// Constant assignConstant;
+// int increment;
+// // using incr bytecode if possible
+// switch (localBinding.type.id) {
+// case T_String :
+// codeStream.generateStringAppend(currentScope, this, expression);
+// if (valueRequired) {
+// codeStream.dup();
+// }
+// codeStream.store(localBinding, false);
+// return;
+// case T_int :
+// if (((assignConstant = expression.constant) != NotAConstant)
+// && (assignConstant.typeID() != T_float) // only for integral types
+// && (assignConstant.typeID() != T_double)
+// && ((increment = assignConstant.intValue()) == (short) increment)) { // 16 bits value
+// switch (operator) {
+// case PLUS :
+// codeStream.iinc(localBinding.resolvedPosition, increment);
+// if (valueRequired) {
+// codeStream.load(localBinding);
+// }
+// return;
+// case MINUS :
+// codeStream.iinc(localBinding.resolvedPosition, -increment);
+// if (valueRequired) {
+// codeStream.load(localBinding);
+// }
+// return;
+// }
+// }
+// default :
+// codeStream.load(localBinding);
+// }
+// }
+// // perform the actual compound operation
+// int operationTypeID;
+// if ((operationTypeID = implicitConversion >> 4) == T_String || operationTypeID == T_Object) {
+// // we enter here if the single name reference is a field of type java.lang.String or if the type of the
+// // operation is java.lang.Object
+// // For example: o = o + ""; // where the compiled type of o is java.lang.Object.
+// codeStream.generateStringAppend(currentScope, null, expression);
+// } else {
+// // promote the array reference to the suitable operation type
+// codeStream.generateImplicitConversion(implicitConversion);
+// // generate the increment value (will by itself be promoted to the operation value)
+// if (expression == IntLiteral.One){ // prefix operation
+// codeStream.generateConstant(expression.constant, implicitConversion);
+// } else {
+// expression.generateCode(currentScope, codeStream, true);
+// }
+// // perform the operation
+// codeStream.sendOperator(operator, operationTypeID);
+// // cast the value back to the array reference type
+// codeStream.generateImplicitConversion(assignmentImplicitConversion);
+// }
+// // store the result back into the variable
+// switch (bits & RestrictiveFlagMASK) {
+// case FIELD : // assigning to a field
+// fieldStore(codeStream, (FieldBinding) this.codegenBinding, writeAccessor, valueRequired);
+// return;
+// case LOCAL : // assigning to a local variable
+// LocalVariableBinding localBinding = (LocalVariableBinding) this.codegenBinding;
+// if (valueRequired) {
+// if ((localBinding.type == LongBinding) || (localBinding.type == DoubleBinding)) {
+// codeStream.dup2();
+// } else {
+// codeStream.dup();
+// }
+// }
+// codeStream.store(localBinding, false);
+// }
+//}
+//public void generatePostIncrement(BlockScope currentScope, CodeStream codeStream, CompoundAssignment postIncrement, boolean valueRequired) {
+// switch (bits & RestrictiveFlagMASK) {
+// case FIELD : // assigning to a field
+// FieldBinding fieldBinding;
+// if ((fieldBinding = (FieldBinding) this.codegenBinding).isStatic()) {
+// if ((syntheticAccessors == null) || (syntheticAccessors[READ] == null)) {
+// codeStream.getstatic(fieldBinding);
+// } else {
+// codeStream.invokestatic(syntheticAccessors[READ]);
+// }
+// } else {
+// if ((bits & DepthMASK) != 0) {
+// ReferenceBinding targetType = currentScope.enclosingSourceType().enclosingTypeAt((bits & DepthMASK) >> DepthSHIFT);
+// Object[] emulationPath = currentScope.getEmulationPath(targetType, true /*only exact match*/, false/*consider enclosing arg*/);
+// codeStream.generateOuterAccess(emulationPath, this, targetType, currentScope);
+// } else {
+// codeStream.aload_0();
+// }
+// codeStream.dup();
+// if ((syntheticAccessors == null) || (syntheticAccessors[READ] == null)) {
+// codeStream.getfield(fieldBinding);
+// } else {
+// codeStream.invokestatic(syntheticAccessors[READ]);
+// }
+// }
+// if (valueRequired) {
+// if (fieldBinding.isStatic()) {
+// if ((fieldBinding.type == LongBinding) || (fieldBinding.type == DoubleBinding)) {
+// codeStream.dup2();
+// } else {
+// codeStream.dup();
+// }
+// } else { // Stack: [owner][old field value] ---> [old field value][owner][old field value]
+// if ((fieldBinding.type == LongBinding) || (fieldBinding.type == DoubleBinding)) {
+// codeStream.dup2_x1();
+// } else {
+// codeStream.dup_x1();
+// }
+// }
+// }
+// codeStream.generateConstant(postIncrement.expression.constant, implicitConversion);
+// codeStream.sendOperator(postIncrement.operator, fieldBinding.type.id);
+// codeStream.generateImplicitConversion(postIncrement.assignmentImplicitConversion);
+// fieldStore(codeStream, fieldBinding, syntheticAccessors == null ? null : syntheticAccessors[WRITE], false);
+// return;
+// case LOCAL : // assigning to a local variable
+// LocalVariableBinding localBinding = (LocalVariableBinding) this.codegenBinding;
+// // using incr bytecode if possible
+// if (localBinding.type == IntBinding) {
+// if (valueRequired) {
+// codeStream.load(localBinding);
+// }
+// if (postIncrement.operator == PLUS) {
+// codeStream.iinc(localBinding.resolvedPosition, 1);
+// } else {
+// codeStream.iinc(localBinding.resolvedPosition, -1);
+// }
+// } else {
+// codeStream.load(localBinding);
+// if (valueRequired){
+// if ((localBinding.type == LongBinding) || (localBinding.type == DoubleBinding)) {
+// codeStream.dup2();
+// } else {
+// codeStream.dup();
+// }
+// }
+// codeStream.generateConstant(postIncrement.expression.constant, implicitConversion);
+// codeStream.sendOperator(postIncrement.operator, localBinding.type.id);
+// codeStream.generateImplicitConversion(postIncrement.assignmentImplicitConversion);
+//
+// codeStream.store(localBinding, false);
+// }
+// }
+//}
+//public void generateReceiver(CodeStream codeStream) {
+// codeStream.aload_0();
+//}
+public void manageEnclosingInstanceAccessIfNecessary(BlockScope currentScope) {
+
+ //If inlinable field, forget the access emulation, the code gen will directly target it
+ if (((bits & DepthMASK) == 0) || (constant != NotAConstant)) return;
+
+ if ((bits & RestrictiveFlagMASK) == LOCAL) {
+ currentScope.emulateOuterAccess((LocalVariableBinding) binding);
+ }
+}
+public void manageSyntheticReadAccessIfNecessary(BlockScope currentScope) {
+
+ //If inlinable field, forget the access emulation, the code gen will directly target it
+ if (constant != NotAConstant)
+ return;
+
+ if ((bits & FIELD) != 0) {
+ FieldBinding fieldBinding = (FieldBinding) binding;
+ if (((bits & DepthMASK) != 0)
+ && (fieldBinding.isPrivate() // private access
+ || (fieldBinding.isProtected() // implicit protected access
+ && fieldBinding.declaringClass.getPackage()
+ != currentScope.enclosingSourceType().getPackage()))) {
+ if (syntheticAccessors == null)
+ syntheticAccessors = new MethodBinding[2];
+ syntheticAccessors[READ] =
+ ((SourceTypeBinding)currentScope.enclosingSourceType().
+ enclosingTypeAt((bits & DepthMASK) >> DepthSHIFT)).
+ addSyntheticMethod(fieldBinding, true);
+ currentScope.problemReporter().needToEmulateFieldReadAccess(fieldBinding, this);
+ return;
+ }
+ // if the binding declaring class is not visible, need special action
+ // for runtime compatibility on 1.2 VMs : change the declaring class of the binding
+ // NOTE: from target 1.2 on, field's declaring class is touched if any different from receiver type
+ // and not from Object or implicit static field access.
+// if (fieldBinding.declaringClass != this.actualReceiverType
+// && !this.actualReceiverType.isArrayType()
+// && fieldBinding.declaringClass != null
+// && fieldBinding.constant == NotAConstant
+// && ((currentScope.environment().options.targetJDK >= CompilerOptions.JDK1_2
+// && !fieldBinding.isStatic()
+// && fieldBinding.declaringClass.id != T_Object) // no change for Object fields (if there was any)
+// || !fieldBinding.declaringClass.canBeSeenBy(currentScope))){
+// this.codegenBinding = currentScope.enclosingSourceType().getUpdatedFieldBinding(fieldBinding, (ReferenceBinding)this.actualReceiverType);
+// }
+ }
+}
+public void manageSyntheticWriteAccessIfNecessary(BlockScope currentScope) {
+
+ if ((bits & FIELD) != 0) {
+ FieldBinding fieldBinding = (FieldBinding) binding;
+ if (((bits & DepthMASK) != 0)
+ && (fieldBinding.isPrivate() // private access
+ || (fieldBinding.isProtected() // implicit protected access
+ && fieldBinding.declaringClass.getPackage()
+ != currentScope.enclosingSourceType().getPackage()))) {
+ if (syntheticAccessors == null)
+ syntheticAccessors = new MethodBinding[2];
+ syntheticAccessors[WRITE] =
+ ((SourceTypeBinding)currentScope.enclosingSourceType().
+ enclosingTypeAt((bits & DepthMASK) >> DepthSHIFT)).
+ addSyntheticMethod(fieldBinding, false);
+ currentScope.problemReporter().needToEmulateFieldWriteAccess(fieldBinding, this);
+ return;
+ }
+ // if the binding declaring class is not visible, need special action
+ // for runtime compatibility on 1.2 VMs : change the declaring class of the binding
+ // NOTE: from target 1.2 on, field's declaring class is touched if any different from receiver type
+ // and not from Object or implicit static field access.
+// if (fieldBinding.declaringClass != this.actualReceiverType
+// && !this.actualReceiverType.isArrayType()
+// && fieldBinding.declaringClass != null
+// && fieldBinding.constant == NotAConstant
+// && ((currentScope.environment().options.targetJDK >= CompilerOptions.JDK1_2
+// && !fieldBinding.isStatic()
+// && fieldBinding.declaringClass.id != T_Object) // no change for Object fields (if there was any)
+// || !fieldBinding.declaringClass.canBeSeenBy(currentScope))){
+// this.codegenBinding = currentScope.enclosingSourceType().getUpdatedFieldBinding(fieldBinding, (ReferenceBinding)this.actualReceiverType);
+// }
+ }
+}
+public TypeBinding reportError(BlockScope scope) {
+ //=====error cases=======
+ constant = Constant.NotAConstant;
+ if (binding instanceof ProblemFieldBinding) {
+ scope.problemReporter().invalidField(this, (FieldBinding) binding);
+ } else if (binding instanceof ProblemReferenceBinding) {
+ scope.problemReporter().invalidType(this, (TypeBinding) binding);
+ } else {
+ scope.problemReporter().unresolvableReference(this, binding);
+ }
+ return null;
+}
+public TypeBinding resolveType(BlockScope scope) {
+ // for code gen, harm the restrictiveFlag
+
+ this.actualReceiverType = this.receiverType = scope.enclosingSourceType();
+
+ if ((this.codegenBinding = this.binding = scope.getBinding(token, bits & RestrictiveFlagMASK, this)).isValidBinding()) {
+ switch (bits & RestrictiveFlagMASK) {
+ case VARIABLE : // =========only variable============
+ case VARIABLE | TYPE : //====both variable and type============
+ if (binding instanceof VariableBinding) {
+ VariableBinding variable = (VariableBinding) binding;
+ if (binding instanceof LocalVariableBinding) {
+ bits &= ~RestrictiveFlagMASK; // clear bits
+ bits |= LOCAL;
+ if ((this.bits & IsStrictlyAssignedMASK) == 0) {
+ constant = variable.constant;
+ } else {
+ constant = NotAConstant;
+ }
+ if ((!variable.isFinal()) && ((bits & DepthMASK) != 0)) {
+ scope.problemReporter().cannotReferToNonFinalOuterLocal((LocalVariableBinding)variable, this);
+ }
+ return this.resolvedType = variable.type;
+ }
+ // a field
+ return this.resolvedType = checkFieldAccess(scope);
+ }
+
+ // thus it was a type
+ bits &= ~RestrictiveFlagMASK; // clear bits
+ bits |= TYPE;
+ case TYPE : //========only type==============
+ constant = Constant.NotAConstant;
+ //deprecated test
+ if (isTypeUseDeprecated((TypeBinding) binding, scope))
+ scope.problemReporter().deprecatedType((TypeBinding) binding, this);
+ return this.resolvedType = (TypeBinding) binding;
+ }
+ }
+
+ // error scenarii
+ return this.resolvedType = this.reportError(scope);
+}
+public StringBuffer printExpression(int indent, StringBuffer output){
+
+ return output.append(token);
+ }
+public String toStringExpression(){
+
+ return new String(token);}
+public void traverse(IAbstractSyntaxTreeVisitor visitor, BlockScope scope) {
+ visitor.visit(this, scope);
+ visitor.endVisit(this, scope);
+}
+public String unboundReferenceErrorName(){
+
+ return new String(token);}
+}
git://git.phpeclipse.com / phpeclipse.git / blobdiff