/*******************************************************************************
- * 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.ast;
import net.sourceforge.phpdt.internal.compiler.IAbstractSyntaxTreeVisitor;
-import net.sourceforge.phpdt.internal.compiler.impl.*;
-import net.sourceforge.phpdt.internal.compiler.codegen.*;
-import net.sourceforge.phpdt.internal.compiler.flow.*;
-import net.sourceforge.phpdt.internal.compiler.lookup.*;
+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 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
+ 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).isFinal() && currentScope.allowBlankFinalFieldAssignment(fieldBinding)) {
+ if ((fieldBinding = (FieldBinding) binding).isBlankFinal()
+ && currentScope
+ .allowBlankFinalFieldAssignment(fieldBinding)) {
if (!flowInfo.isDefinitelyAssigned(fieldBinding)) {
- currentScope.problemReporter().uninitializedBlankFinalField(fieldBinding, this);
- // we could improve error msg here telling "cannot use compound assignment on final blank field"
+ 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.isFakeReachable()) localBinding.used = true;
+ // 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
+ 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 (currentScope.allowBlankFinalFieldAssignment(fieldBinding)) {
+ if (!isCompound
+ && fieldBinding.isBlankFinal()
+ && currentScope
+ .allowBlankFinalFieldAssignment(fieldBinding)) {
if (flowInfo.isPotentiallyAssigned(fieldBinding)) {
- currentScope.problemReporter().duplicateInitializationOfBlankFinalField(fieldBinding, this);
+ currentScope.problemReporter()
+ .duplicateInitializationOfBlankFinalField(
+ fieldBinding, this);
+ } else {
+ flowContext.recordSettingFinal(fieldBinding, this);
}
flowInfo.markAsDefinitelyAssigned(fieldBinding);
- flowContext.recordSettingFinal(fieldBinding, this);
} else {
- currentScope.problemReporter().cannotAssignToFinalField(fieldBinding, this);
+ currentScope.problemReporter().cannotAssignToFinalField(
+ fieldBinding, this);
}
}
break;
- case LOCAL : // assigning to a local variable
+ case LOCAL: // assigning to a local variable
LocalVariableBinding localBinding = (LocalVariableBinding) binding;
- if (!flowInfo.isDefinitelyAssigned(localBinding)){// for local variable debug attributes
+ if (!flowInfo.isDefinitelyAssigned(localBinding)) {// for local
+ // variable
+ // debug
+ // attributes
bits |= FirstAssignmentToLocalMASK;
} else {
bits &= ~FirstAssignmentToLocalMASK;
}
if (localBinding.isFinal()) {
if ((bits & DepthMASK) == 0) {
- if (flowInfo.isPotentiallyAssigned(localBinding)) {
- currentScope.problemReporter().duplicateInitializationOfFinalLocal(localBinding, this);
+ if (isCompound || !localBinding.isBlankFinal()) {
+ currentScope.problemReporter()
+ .cannotAssignToFinalLocal(localBinding, this);
+ } else if (flowInfo.isPotentiallyAssigned(localBinding)) {
+ currentScope.problemReporter()
+ .duplicateInitializationOfFinalLocal(
+ localBinding, this);
+ } else {
+ flowContext.recordSettingFinal(localBinding, this);
}
- flowContext.recordSettingFinal(localBinding, this);
} else {
- currentScope.problemReporter().cannotAssignToFinalOuterLocal(localBinding, this);
+ 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);
}
- 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
+ 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).isFinal() && currentScope.allowBlankFinalFieldAssignment(fieldBinding)) {
+ if ((fieldBinding = (FieldBinding) binding).isBlankFinal()
+ && currentScope
+ .allowBlankFinalFieldAssignment(fieldBinding)) {
if (!flowInfo.isDefinitelyAssigned(fieldBinding)) {
- currentScope.problemReporter().uninitializedBlankFinalField(fieldBinding, this);
+ 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.isFakeReachable()) localBinding.used = true;
- }
- 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 null;
+ // 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;
}
- constant = FieldReference.getConstantFor(fieldBinding, true, this, scope, 0);
- if (isFieldUseDeprecated(fieldBinding, scope))
- scope.problemReporter().deprecatedField(fieldBinding, this);
-
- //===============================================
- //cycle are forbidden ONLY within the same class...why ?????? (poor javac....)
- //Cycle can be done using cross class ref but not direct into a same class reference ????
- //class A { static int k = B.k+1;}
- //class B { static int k = A.k+2;}
- //The k-cycle in this example is valid.
-
- //class C { static int k = k + 1 ;}
- //here it is forbidden ! ????
- //but the next one is valid !!!
- //class C { static int k = C.k + 1;}
-
- //notice that the next one is also valid ?!?!
- //class A { static int k = foo().k+1 ; static A foo(){return new A();}}
-
- //for all these reasons, the next piece of code is only here and not
- //commun for all FieldRef and QualifiedNameRef....(i.e. in the getField(..) API.....
-
- //instance field may refer to forward static field, like in
- //int i = staticI;
- //static int staticI = 2 ;
-
- MethodScope ms = scope.methodScope();
- if (ms.enclosingSourceType() == fieldBinding.declaringClass
- && ms.fieldDeclarationIndex != ms.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 TypeBinding checkFieldAccess(BlockScope scope) {
-}
-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) {
- Object[] emulationPath = currentScope.getExactEmulationPath(currentScope.enclosingSourceType().enclosingTypeAt((bits & DepthMASK) >> DepthSHIFT));
- if (emulationPath == null) {
- // internal error, per construction we should have found it
- currentScope.problemReporter().needImplementation();
- } else {
- codeStream.generateOuterAccess(emulationPath, this, 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;
- }
- // 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);
+ 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;
}
- }
-}
-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) {
- Object[] emulationPath = currentScope.getExactEmulationPath(currentScope.enclosingSourceType().enclosingTypeAt((bits & DepthMASK) >> DepthSHIFT));
- if (emulationPath == null) {
- // internal error, per construction we should have found it
- currentScope.problemReporter().needImplementation();
- } else {
- codeStream.generateOuterAccess(emulationPath, this, 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);
- if (path == null) {
- // emulation was not possible (should not happen per construction)
- currentScope.problemReporter().needImplementation();
- } else {
- codeStream.generateOuterAccess(path, this, currentScope);
- }
- } else {
- // regular local variable read
- codeStream.load(localBinding);
- }
- codeStream.generateImplicitConversion(implicitConversion);
- }
+ 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());
}
- }
- 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) {
- Object[] emulationPath = currentScope.getExactEmulationPath(currentScope.enclosingSourceType().enclosingTypeAt((bits & DepthMASK) >> DepthSHIFT));
- if (emulationPath == null) {
- // internal error, per construction we should have found it
- currentScope.problemReporter().needImplementation();
- } else {
- codeStream.generateOuterAccess(emulationPath, this, 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) {
- Object[] emulationPath = currentScope.getExactEmulationPath(currentScope.enclosingSourceType().enclosingTypeAt((bits & DepthMASK) >> DepthSHIFT));
- if (emulationPath == null) {
- // internal error, per construction we should have found it
- currentScope.problemReporter().needImplementation();
- } else {
- codeStream.generateOuterAccess(emulationPath, this, 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);
+ // ====================================================
+
+ return fieldBinding.type;
- 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;
+ // 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) {
- switch (bits & RestrictiveFlagMASK) {
- case FIELD :
- FieldBinding fieldBinding;
- if ((fieldBinding = (FieldBinding)binding).isStatic() || (fieldBinding.constant != NotAConstant)) return;
- ReferenceBinding compatibleType = currentScope.enclosingSourceType();
- // the declaringClass of the target binding must be compatible with the enclosing
- // type at <depth> levels outside
- for (int i = 0, depth = (bits & DepthMASK) >> DepthSHIFT; i < depth; i++) {
- compatibleType = compatibleType.enclosingType();
- }
- currentScope.emulateOuterAccess(compatibleType, false); // request cascade of accesses
- break;
- case LOCAL :
+ // 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;
+ public void manageSyntheticReadAccessIfNecessary(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[READ] =
- ((SourceTypeBinding)currentScope.enclosingSourceType().
- enclosingTypeAt((bits & DepthMASK) >> DepthSHIFT)).
- addSyntheticMethod(fieldBinding, true);
- currentScope.problemReporter().needToEmulateFieldReadAccess(fieldBinding, this);
+ // If inlinable field, forget the access emulation, the code gen will
+ // directly target it
+ if (constant != NotAConstant)
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 1.4 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.complianceLevel >= CompilerOptions.JDK1_4
- && !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);
+
+ 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 1.4 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.complianceLevel >= CompilerOptions.JDK1_4
- && !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);
+
+ 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;
}
- 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============
+ 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 vb = (VariableBinding) binding;
+ VariableBinding variable = (VariableBinding) binding;
if (binding instanceof LocalVariableBinding) {
- bits &= ~RestrictiveFlagMASK; // clear bits
+ bits &= ~RestrictiveFlagMASK; // clear bits
bits |= LOCAL;
- constant = vb.constant;
- if ((!vb.isFinal()) && ((bits & DepthMASK) != 0))
- scope.problemReporter().cannotReferToNonFinalOuterLocal((LocalVariableBinding)vb, this);
- return vb.type;
+ 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 checkFieldAccess(scope);
+ return this.resolvedType = checkFieldAccess(scope);
}
// thus it was a type
- bits &= ~RestrictiveFlagMASK; // clear bits
+ bits &= ~RestrictiveFlagMASK; // clear bits
bits |= TYPE;
- case TYPE : //========only type==============
+ case TYPE: // ========only type==============
constant = Constant.NotAConstant;
- //deprecated test
+ // deprecated test
if (isTypeUseDeprecated((TypeBinding) binding, scope))
- scope.problemReporter().deprecatedType((TypeBinding) binding, this);
- return (TypeBinding) binding;
+ scope.problemReporter().deprecatedType(
+ (TypeBinding) binding, this);
+ return this.resolvedType = (TypeBinding) binding;
+ }
}
+
+ // error scenarii
+ return this.resolvedType = this.reportError(scope);
}
- // error scenarii
- return this.reportError(scope);
-}
-public String toStringExpression(){
+ public StringBuffer printExpression(int indent, StringBuffer output) {
- return new String(token);}
-public void traverse(IAbstractSyntaxTreeVisitor visitor, BlockScope scope) {
- visitor.visit(this, scope);
- visitor.endVisit(this, scope);
-}
-public String unboundReferenceErrorName(){
+ return output.append(token);
+ }
+
+ public String toStringExpression() {
- return new String(token);}
+ 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);
+ }
}
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