X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Forg%2Feclipse%2Fjdt%2Finternal%2Fcompiler%2Fast%2FSingleNameReference.java;fp=src%2Forg%2Feclipse%2Fjdt%2Finternal%2Fcompiler%2Fast%2FSingleNameReference.java;h=0000000000000000000000000000000000000000;hb=6f0cd02d46e011bd5599e1b7fefc6159cb811135;hp=908732b2dfe030f6e8f9b0903c7a23be53b2fbe3;hpb=622d0e5a4b1b35b6918a516a79a0cc22272a919e;p=org.ibex.tool.git diff --git a/src/org/eclipse/jdt/internal/compiler/ast/SingleNameReference.java b/src/org/eclipse/jdt/internal/compiler/ast/SingleNameReference.java deleted file mode 100644 index 908732b..0000000 --- a/src/org/eclipse/jdt/internal/compiler/ast/SingleNameReference.java +++ /dev/null @@ -1,687 +0,0 @@ -/******************************************************************************* - * 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.ASTVisitor; -import org.eclipse.jdt.internal.compiler.impl.*; -import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants; -import org.eclipse.jdt.internal.compiler.codegen.*; -import org.eclipse.jdt.internal.compiler.flow.*; -import org.eclipse.jdt.internal.compiler.lookup.*; -import org.eclipse.jdt.internal.compiler.problem.ProblemSeverities; - -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) { - - boolean isReachable = flowInfo.isReachable(); - // 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, flowInfo); - 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 (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, flowInfo); - - // 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); - } - 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) { - // tolerate assignment to final local in unreachable code (45674) - if ((isReachable && isCompound) || !localBinding.isBlankFinal()){ - currentScope.problemReporter().cannotAssignToFinalLocal(localBinding, this); - } else if (flowInfo.isPotentiallyAssigned(localBinding)) { - currentScope.problemReporter().duplicateInitializationOfFinalLocal(localBinding, this); - } else { - flowContext.recordSettingFinal(localBinding, this, flowInfo); - } - } else { - currentScope.problemReporter().cannotAssignToFinalOuterLocal(localBinding, this); - } - } - flowInfo.markAsDefinitelyAssigned(localBinding); - } - manageEnclosingInstanceAccessIfNecessary(currentScope, flowInfo); - 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, flowInfo); - } - // 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, flowInfo); - } - 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, (this.bits & IsStrictlyAssignedMASK) !=0)) - scope.problemReporter().deprecatedField(fieldBinding, this); - - MethodScope ms = scope.methodScope(); - if ((this.bits & IsStrictlyAssignedMASK) == 0 - && ms.enclosingSourceType() == fieldBinding.declaringClass - && ms.lastVisibleFieldID >= 0 - && fieldBinding.id >= ms.lastVisibleFieldID) { - //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, FlowInfo flowInfo) { - - if (!flowInfo.isReachable()) return; - //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, FlowInfo flowInfo) { - - if (!flowInfo.isReachable()) return; - - //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 >= ClassFileConstants.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, FlowInfo flowInfo) { - - if (!flowInfo.isReachable()) 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[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 >= ClassFileConstants.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 StringBuffer printExpression(int indent, StringBuffer output){ - - return output.append(token); - } - - 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, true /*resolve*/)).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 - FieldBinding field = (FieldBinding) this.binding; - if (!field.isStatic() && scope.environment().options.getSeverity(CompilerOptions.UnqualifiedFieldAccess) != ProblemSeverities.Ignore) { - scope.problemReporter().unqualifiedFieldAccess(this, 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 void traverse(ASTVisitor visitor, BlockScope scope) { - - visitor.visit(this, scope); - visitor.endVisit(this, scope); - } - - public String unboundReferenceErrorName(){ - - return new String(token); - } -}