/*******************************************************************************
- * 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.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.SyntheticAccessMethodBinding;
+import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
+import net.sourceforge.phpdt.internal.compiler.lookup.VariableBinding;
+
public class QualifiedNameReference extends NameReference {
Assignment assignment,
boolean isCompound) {
- if (assignment.expression != null) {
- flowInfo =
- assignment
- .expression
- .analyseCode(currentScope, flowContext, flowInfo)
- .unconditionalInits();
- }
// determine the rank until which we now we do not need any actual value for the field access
int otherBindingsCount = otherBindings == null ? 0 : otherBindings.length;
- int indexOfFirstValueRequired = otherBindingsCount;
- while (indexOfFirstValueRequired > 0) {
- FieldBinding otherBinding = otherBindings[indexOfFirstValueRequired - 1];
- if (otherBinding.isStatic())
- break; // no longer need any value before this point
- indexOfFirstValueRequired--;
- }
- FieldBinding lastFieldBinding = null;
- if ((bits & FIELD) != 0) {
- // reading from a field
- // check if final blank field
- if ((lastFieldBinding = (FieldBinding) binding).isFinal()
- && currentScope.allowBlankFinalFieldAssignment(lastFieldBinding)) {
- if (!flowInfo.isDefinitelyAssigned(lastFieldBinding)) {
- currentScope.problemReporter().uninitializedBlankFinalField(
- lastFieldBinding,
- this);
- }
- }
- } else {
- if ((bits & LOCAL) != 0) {
- // first binding is a local variable
- LocalVariableBinding localBinding;
- if (!flowInfo
- .isDefinitelyAssigned(localBinding = (LocalVariableBinding) binding)) {
- currentScope.problemReporter().uninitializedLocalVariable(localBinding, this);
+ boolean needValue = otherBindingsCount == 0 || !this.otherBindings[0].isStatic();
+ switch (bits & RestrictiveFlagMASK) {
+ case FIELD : // reading a field
+ lastFieldBinding = (FieldBinding) binding;
+ if (needValue) {
+ manageSyntheticReadAccessIfNecessary(currentScope, lastFieldBinding, this.actualReceiverType, 0);
+ } // check if final blank field
+ if (lastFieldBinding.isBlankFinal()
+ && this.otherBindings != null // the last field binding is only assigned
+ && currentScope.allowBlankFinalFieldAssignment(lastFieldBinding)) {
+ if (!flowInfo.isDefinitelyAssigned(lastFieldBinding)) {
+ currentScope.problemReporter().uninitializedBlankFinalField(
+ lastFieldBinding,
+ this);
+ }
}
- if (!flowInfo.isFakeReachable())
- localBinding.used = true;
- }
+ break;
+// case LOCAL :
+// // first binding is 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 (indexOfFirstValueRequired == 0) {
+
+ if (needValue) {
manageEnclosingInstanceAccessIfNecessary(currentScope);
// only for first binding
}
// all intermediate field accesses are read accesses
if (otherBindings != null) {
- int start = indexOfFirstValueRequired == 0 ? 0 : indexOfFirstValueRequired - 1;
- for (int i = start; i < otherBindingsCount; i++) {
- if (lastFieldBinding != null) { // could be null if first was a local variable
- TypeBinding lastReceiverType;
- switch(i){
- case 0 :
- lastReceiverType = this.actualReceiverType;
- break;
- case 1 :
- lastReceiverType = ((VariableBinding)binding).type;
- break;
- default :
- lastReceiverType = otherBindings[i-1].type;
- }
+ for (int i = 0; i < otherBindingsCount-1; i++) {
+ lastFieldBinding = otherBindings[i];
+ needValue = !otherBindings[i+1].isStatic();
+ if (needValue) {
manageSyntheticReadAccessIfNecessary(
currentScope,
lastFieldBinding,
- lastReceiverType,
- i);
+ i == 0
+ ? ((VariableBinding)binding).type
+ : otherBindings[i-1].type,
+ i + 1);
}
- lastFieldBinding = otherBindings[i];
}
+ lastFieldBinding = otherBindings[otherBindingsCount-1];
}
+
if (isCompound) {
if (binding == lastFieldBinding
+ && lastFieldBinding.isBlankFinal()
&& currentScope.allowBlankFinalFieldAssignment(lastFieldBinding)
&& (!flowInfo.isDefinitelyAssigned(lastFieldBinding))) {
currentScope.problemReporter().uninitializedBlankFinalField(
? 0
: otherBindingsCount);
}
+
+ if (assignment.expression != null) {
+ flowInfo =
+ assignment
+ .expression
+ .analyseCode(currentScope, flowContext, flowInfo)
+ .unconditionalInits();
+ }
+
// the last field access is a write access
if (lastFieldBinding.isFinal()) {
// in a context where it can be assigned?
- if (currentScope.allowBlankFinalFieldAssignment(lastFieldBinding)) {
+ if (lastFieldBinding.isBlankFinal()
+ && !isCompound
+ && currentScope.allowBlankFinalFieldAssignment(lastFieldBinding)
+ && indexOfFirstFieldBinding == 1) {
if (flowInfo.isPotentiallyAssigned(lastFieldBinding)) {
- if (indexOfFirstFieldBinding == 1) {
- // was an implicit reference to the first field binding
- currentScope.problemReporter().duplicateInitializationOfBlankFinalField(
- lastFieldBinding,
- this);
- } else {
- currentScope.problemReporter().cannotAssignToFinalField(lastFieldBinding, this);
- // attempting to assign a non implicit reference
- }
+ currentScope.problemReporter().duplicateInitializationOfBlankFinalField(lastFieldBinding, this);
+ } else {
+ flowContext.recordSettingFinal(lastFieldBinding, this);
}
flowInfo.markAsDefinitelyAssigned(lastFieldBinding);
- flowContext.recordSettingFinal(lastFieldBinding, this);
} else {
currentScope.problemReporter().cannotAssignToFinalField(lastFieldBinding, this);
+ if (currentScope.allowBlankFinalFieldAssignment(lastFieldBinding)) { // pretend it got assigned
+ flowInfo.markAsDefinitelyAssigned(lastFieldBinding);
+ }
}
}
// equivalent to valuesRequired[maxOtherBindings]
return flowInfo;
}
+
public FlowInfo analyseCode(
BlockScope currentScope,
FlowContext flowContext,
// determine the rank until which we now we do not need any actual value for the field access
int otherBindingsCount = otherBindings == null ? 0 : otherBindings.length;
- int indexOfFirstValueRequired;
- if (valueRequired) {
- indexOfFirstValueRequired = otherBindingsCount;
- while (indexOfFirstValueRequired > 0) {
- FieldBinding otherBinding = otherBindings[indexOfFirstValueRequired - 1];
- if (otherBinding.isStatic())
- break; // no longer need any value before this point
- indexOfFirstValueRequired--;
- }
- } else {
- indexOfFirstValueRequired = otherBindingsCount + 1;
- }
+
+ boolean needValue = otherBindingsCount == 0 ? valueRequired : !this.otherBindings[0].isStatic();
switch (bits & RestrictiveFlagMASK) {
case FIELD : // reading a field
- if (indexOfFirstValueRequired == 0) {
+ if (needValue) {
manageSyntheticReadAccessIfNecessary(currentScope, (FieldBinding) binding, this.actualReceiverType, 0);
}
// check if reading a final blank field
FieldBinding fieldBinding;
- if ((fieldBinding = (FieldBinding) binding).isFinal()
+ if ((fieldBinding = (FieldBinding) binding).isBlankFinal()
&& (indexOfFirstFieldBinding == 1)
// was an implicit reference to the first field binding
&& currentScope.allowBlankFinalFieldAssignment(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.isFakeReachable())
- localBinding.used = true;
- }
- if (indexOfFirstValueRequired == 0) {
+// 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 (needValue) {
manageEnclosingInstanceAccessIfNecessary(currentScope);
// only for first binding
}
if (otherBindings != null) {
- int start = indexOfFirstValueRequired == 0 ? 0 : indexOfFirstValueRequired - 1;
- for (int i = start; i < otherBindingsCount; i++) {
- manageSyntheticReadAccessIfNecessary(
- currentScope,
- otherBindings[i],
- i == 0
- ? ((VariableBinding)binding).type
- : otherBindings[i-1].type,
- i + 1);
+ for (int i = 0; i < otherBindingsCount; i++) {
+ needValue = i < otherBindingsCount-1 ? !otherBindings[i+1].isStatic() : valueRequired;
+ if (needValue) {
+ manageSyntheticReadAccessIfNecessary(
+ currentScope,
+ otherBindings[i],
+ i == 0
+ ? ((VariableBinding)binding).type
+ : otherBindings[i-1].type,
+ i + 1);
+ }
}
}
return flowInfo;
FieldBinding fieldBinding = (FieldBinding) binding;
MethodScope methodScope = scope.methodScope();
if (methodScope.enclosingSourceType() == fieldBinding.declaringClass
- && methodScope.fieldDeclarationIndex != methodScope.NotInFieldDecl
+ && methodScope.fieldDeclarationIndex != MethodScope.NotInFieldDecl
&& fieldBinding.id >= methodScope.fieldDeclarationIndex) {
if ((!fieldBinding.isStatic() || methodScope.isStatic)
&& this.indexOfFirstFieldBinding == 1)
bits |= FIELD;
return getOtherFieldBindings(scope);
}
- public void generateAssignment(
- BlockScope currentScope,
- CodeStream codeStream,
- Assignment assignment,
- boolean valueRequired) {
-
- generateReadSequence(currentScope, codeStream, true);
- assignment.expression.generateCode(currentScope, codeStream, true);
- fieldStore(codeStream, lastFieldBinding, syntheticWriteAccessor, valueRequired);
- // equivalent to valuesRequired[maxOtherBindings]
- 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 {
- generateReadSequence(currentScope, codeStream, valueRequired);
- if (valueRequired) {
- if (lastFieldBinding.declaringClass == null) { // array length
- codeStream.arraylength();
- codeStream.generateImplicitConversion(implicitConversion);
- } else {
- if (lastFieldBinding.constant != NotAConstant) {
- // inline the last field constant
- codeStream.generateConstant(lastFieldBinding.constant, implicitConversion);
- } else {
- SyntheticAccessMethodBinding accessor =
- syntheticReadAccessors == null
- ? null
- : syntheticReadAccessors[syntheticReadAccessors.length - 1];
- if (accessor == null) {
- if (lastFieldBinding.isStatic()) {
- codeStream.getstatic(lastFieldBinding);
- } else {
- codeStream.getfield(lastFieldBinding);
- }
- } else {
- codeStream.invokestatic(accessor);
- }
- codeStream.generateImplicitConversion(implicitConversion);
- }
- }
- }
- }
- codeStream.recordPositionsFrom(pc, this.sourceStart);
- }
- public void generateCompoundAssignment(
- BlockScope currentScope,
- CodeStream codeStream,
- Expression expression,
- int operator,
- int assignmentImplicitConversion,
- boolean valueRequired) {
-
- generateReadSequence(currentScope, codeStream, true);
- SyntheticAccessMethodBinding accessor =
- syntheticReadAccessors == null
- ? null
- : syntheticReadAccessors[syntheticReadAccessors.length - 1];
- if (lastFieldBinding.isStatic()) {
- if (accessor == null) {
- codeStream.getstatic(lastFieldBinding);
- } else {
- codeStream.invokestatic(accessor);
- }
- } else {
- codeStream.dup();
- if (accessor == null) {
- codeStream.getfield(lastFieldBinding);
- } else {
- codeStream.invokestatic(accessor);
- }
- }
- // the last field access is a write access
- // perform the actual compound operation
- int operationTypeID;
- if ((operationTypeID = implicitConversion >> 4) == T_String) {
- 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);
- }
- // actual assignment
- fieldStore(codeStream, lastFieldBinding, syntheticWriteAccessor, valueRequired);
- // equivalent to valuesRequired[maxOtherBindings]
- }
- public void generatePostIncrement(
- BlockScope currentScope,
- CodeStream codeStream,
- CompoundAssignment postIncrement,
- boolean valueRequired) {
- generateReadSequence(currentScope, codeStream, true);
- SyntheticAccessMethodBinding accessor =
- syntheticReadAccessors == null
- ? null
- : syntheticReadAccessors[syntheticReadAccessors.length - 1];
- if (lastFieldBinding.isStatic()) {
- if (accessor == null) {
- codeStream.getstatic(lastFieldBinding);
- } else {
- codeStream.invokestatic(accessor);
- }
- } else {
- codeStream.dup();
- if (accessor == null) {
- codeStream.getfield(lastFieldBinding);
- } else {
- codeStream.invokestatic(accessor);
- }
- }
- // duplicate the old field value
- if (valueRequired) {
- if (lastFieldBinding.isStatic()) {
- if ((lastFieldBinding.type == LongBinding)
- || (lastFieldBinding.type == DoubleBinding)) {
- codeStream.dup2();
- } else {
- codeStream.dup();
- }
- } else { // Stack: [owner][old field value] ---> [old field value][owner][old field value]
- if ((lastFieldBinding.type == LongBinding)
- || (lastFieldBinding.type == DoubleBinding)) {
- codeStream.dup2_x1();
- } else {
- codeStream.dup_x1();
- }
- }
- }
- codeStream.generateConstant(
- postIncrement.expression.constant,
- implicitConversion);
- codeStream.sendOperator(postIncrement.operator, lastFieldBinding.type.id);
- codeStream.generateImplicitConversion(
- postIncrement.assignmentImplicitConversion);
- fieldStore(codeStream, lastFieldBinding, syntheticWriteAccessor, false);
- }
- /*
- * Generate code for all bindings (local and fields) excluding the last one, which may then be generated code
- * for a read or write access.
- */
- public void generateReadSequence(
- BlockScope currentScope,
- CodeStream codeStream,
- boolean valueRequired) {
- // determine the rank until which we now we do not need any actual value for the field access
- int otherBindingsCount = this.otherCodegenBindings == null ? 0 : otherCodegenBindings.length;
- int indexOfFirstValueRequired;
- if (valueRequired) {
- indexOfFirstValueRequired = otherBindingsCount;
- while (indexOfFirstValueRequired > 0) {
- FieldBinding otherBinding = this.otherCodegenBindings[indexOfFirstValueRequired - 1];
- if (otherBinding.isStatic() || otherBinding.constant != NotAConstant)
- break; // no longer need any value before this point
- indexOfFirstValueRequired--;
- }
- } else {
- indexOfFirstValueRequired = otherBindingsCount + 1;
- }
- if (indexOfFirstValueRequired == 0) {
- switch (bits & RestrictiveFlagMASK) {
- case FIELD :
- lastFieldBinding = (FieldBinding) this.codegenBinding;
- // if first field is actually constant, we can inline it
- if (lastFieldBinding.constant != NotAConstant) {
- codeStream.generateConstant(lastFieldBinding.constant, 0);
- // no implicit conversion
- lastFieldBinding = null; // will not generate it again
- break;
- }
- if (!lastFieldBinding.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);
- }
- }
- break;
- case LOCAL : // reading the first local variable
- lastFieldBinding = null;
- LocalVariableBinding localBinding = (LocalVariableBinding) this.codegenBinding;
- // regular local variable read
- if (localBinding.constant != NotAConstant) {
- codeStream.generateConstant(localBinding.constant, 0);
- // no implicit conversion
- } else {
- // 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 {
- codeStream.load(localBinding);
- }
- }
- }
- } else {
- lastFieldBinding = null;
- }
- // all intermediate field accesses are read accesses
- // only the last field binding is a write access
- if (this.otherCodegenBindings != null) {
- int start = indexOfFirstValueRequired == 0 ? 0 : indexOfFirstValueRequired - 1;
- for (int i = start; i < otherBindingsCount; i++) {
- if (lastFieldBinding != null) {
- MethodBinding accessor =
- syntheticReadAccessors == null ? null : syntheticReadAccessors[i];
- if (accessor == null)
- if (lastFieldBinding.isStatic())
- codeStream.getstatic(lastFieldBinding);
- else
- codeStream.getfield(lastFieldBinding);
- else
- codeStream.invokestatic(accessor);
- }
- lastFieldBinding = otherCodegenBindings[i];
- }
- }
- }
- public void generateReceiver(CodeStream codeStream) {
- codeStream.aload_0();
- }
+// public void generateAssignment(
+// BlockScope currentScope,
+// CodeStream codeStream,
+// Assignment assignment,
+// boolean valueRequired) {
+//
+// generateReadSequence(currentScope, codeStream);
+// assignment.expression.generateCode(currentScope, codeStream, true);
+// fieldStore(codeStream, lastFieldBinding, syntheticWriteAccessor, valueRequired);
+// // equivalent to valuesRequired[maxOtherBindings]
+// 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 {
+// generateReadSequence(currentScope, codeStream);
+// if (valueRequired) {
+// if (lastFieldBinding.declaringClass == null) { // array length
+// codeStream.arraylength();
+// codeStream.generateImplicitConversion(implicitConversion);
+// } else {
+// if (lastFieldBinding.constant != NotAConstant) {
+// if (!lastFieldBinding.isStatic()){
+// codeStream.invokeObjectGetClass();
+// codeStream.pop();
+// }
+// // inline the last field constant
+// codeStream.generateConstant(lastFieldBinding.constant, implicitConversion);
+// } else {
+// SyntheticAccessMethodBinding accessor =
+// syntheticReadAccessors == null
+// ? null
+// : syntheticReadAccessors[syntheticReadAccessors.length - 1];
+// if (accessor == null) {
+// if (lastFieldBinding.isStatic()) {
+// codeStream.getstatic(lastFieldBinding);
+// } else {
+// codeStream.getfield(lastFieldBinding);
+// }
+// } else {
+// codeStream.invokestatic(accessor);
+// }
+// codeStream.generateImplicitConversion(implicitConversion);
+// }
+// }
+// } else {
+// if (lastFieldBinding != null && !lastFieldBinding.isStatic()){
+// codeStream.invokeObjectGetClass(); // perform null check
+// codeStream.pop();
+// }
+//
+// }
+// }
+// codeStream.recordPositionsFrom(pc, this.sourceStart);
+// }
+// public void generateCompoundAssignment(
+// BlockScope currentScope,
+// CodeStream codeStream,
+// Expression expression,
+// int operator,
+// int assignmentImplicitConversion,
+// boolean valueRequired) {
+//
+// generateReadSequence(currentScope, codeStream);
+// SyntheticAccessMethodBinding accessor =
+// syntheticReadAccessors == null
+// ? null
+// : syntheticReadAccessors[syntheticReadAccessors.length - 1];
+// if (lastFieldBinding.isStatic()) {
+// if (accessor == null) {
+// codeStream.getstatic(lastFieldBinding);
+// } else {
+// codeStream.invokestatic(accessor);
+// }
+// } else {
+// codeStream.dup();
+// if (accessor == null) {
+// codeStream.getfield(lastFieldBinding);
+// } else {
+// codeStream.invokestatic(accessor);
+// }
+// }
+// // the last field access is a write access
+// // perform the actual compound operation
+// int operationTypeID;
+// if ((operationTypeID = implicitConversion >> 4) == T_String) {
+// 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);
+// }
+// // actual assignment
+// fieldStore(codeStream, lastFieldBinding, syntheticWriteAccessor, valueRequired);
+// // equivalent to valuesRequired[maxOtherBindings]
+// }
+// public void generatePostIncrement(
+// BlockScope currentScope,
+// CodeStream codeStream,
+// CompoundAssignment postIncrement,
+// boolean valueRequired) {
+// generateReadSequence(currentScope, codeStream);
+// SyntheticAccessMethodBinding accessor =
+// syntheticReadAccessors == null
+// ? null
+// : syntheticReadAccessors[syntheticReadAccessors.length - 1];
+// if (lastFieldBinding.isStatic()) {
+// if (accessor == null) {
+// codeStream.getstatic(lastFieldBinding);
+// } else {
+// codeStream.invokestatic(accessor);
+// }
+// } else {
+// codeStream.dup();
+// if (accessor == null) {
+// codeStream.getfield(lastFieldBinding);
+// } else {
+// codeStream.invokestatic(accessor);
+// }
+// }
+// // duplicate the old field value
+// if (valueRequired) {
+// if (lastFieldBinding.isStatic()) {
+// if ((lastFieldBinding.type == LongBinding)
+// || (lastFieldBinding.type == DoubleBinding)) {
+// codeStream.dup2();
+// } else {
+// codeStream.dup();
+// }
+// } else { // Stack: [owner][old field value] ---> [old field value][owner][old field value]
+// if ((lastFieldBinding.type == LongBinding)
+// || (lastFieldBinding.type == DoubleBinding)) {
+// codeStream.dup2_x1();
+// } else {
+// codeStream.dup_x1();
+// }
+// }
+// }
+// codeStream.generateConstant(
+// postIncrement.expression.constant,
+// implicitConversion);
+// codeStream.sendOperator(postIncrement.operator, lastFieldBinding.type.id);
+// codeStream.generateImplicitConversion(
+// postIncrement.assignmentImplicitConversion);
+// fieldStore(codeStream, lastFieldBinding, syntheticWriteAccessor, false);
+// }
+// /*
+// * Generate code for all bindings (local and fields) excluding the last one, which may then be generated code
+// * for a read or write access.
+// */
+// public void generateReadSequence(
+// BlockScope currentScope,
+// CodeStream codeStream) {
+//
+// // determine the rank until which we now we do not need any actual value for the field access
+// int otherBindingsCount = this.otherCodegenBindings == null ? 0 : otherCodegenBindings.length;
+//
+// boolean needValue = otherBindingsCount == 0 || !this.otherBindings[0].isStatic();
+// switch (bits & RestrictiveFlagMASK) {
+// case FIELD :
+// lastFieldBinding = (FieldBinding) this.codegenBinding;
+// // if first field is actually constant, we can inline it
+// if (lastFieldBinding.constant != NotAConstant) {
+// break;
+// }
+// if (needValue && !lastFieldBinding.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);
+// }
+// }
+// break;
+// case LOCAL : // reading the first local variable
+// if (!needValue) break; // no value needed
+// lastFieldBinding = null;
+// LocalVariableBinding localBinding = (LocalVariableBinding) this.codegenBinding;
+// // regular local variable read
+// if (localBinding.constant != NotAConstant) {
+// codeStream.generateConstant(localBinding.constant, 0);
+// // no implicit conversion
+// } else {
+// // 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 {
+// codeStream.load(localBinding);
+// }
+// }
+// }
+//
+// // all intermediate field accesses are read accesses
+// // only the last field binding is a write access
+// if (this.otherCodegenBindings != null) {
+// for (int i = 0; i < otherBindingsCount; i++) {
+// FieldBinding nextField = this.otherCodegenBindings[i];
+// if (lastFieldBinding != null) {
+// needValue = !nextField.isStatic();
+// if (needValue) {
+// MethodBinding accessor =
+// syntheticReadAccessors == null ? null : syntheticReadAccessors[i];
+// if (accessor == null) {
+// if (lastFieldBinding.constant != NotAConstant) {
+// if (this.lastFieldBinding != this.codegenBinding && !this.lastFieldBinding.isStatic()) {
+// codeStream.invokeObjectGetClass(); // perform null check
+// codeStream.pop();
+// }
+// codeStream.generateConstant(lastFieldBinding.constant, 0);
+// } else if (lastFieldBinding.isStatic()) {
+// codeStream.getstatic(lastFieldBinding);
+// } else {
+// codeStream.getfield(lastFieldBinding);
+// }
+// } else {
+// codeStream.invokestatic(accessor);
+// }
+// } else {
+// if (this.codegenBinding != this.lastFieldBinding && !this.lastFieldBinding.isStatic()){
+// codeStream.invokeObjectGetClass(); // perform null check
+// codeStream.pop();
+// }
+// }
+// }
+// this.lastFieldBinding = nextField;
+// }
+// }
+// }
+// public void generateReceiver(CodeStream codeStream) {
+// codeStream.aload_0();
+// }
public TypeBinding getOtherFieldBindings(BlockScope scope) {
// At this point restrictiveFlag may ONLY have two potential value : FIELD LOCAL (i.e cast <<(VariableBinding) binding>> is valid)
if ((bits & FIELD) != 0) {
int index = indexOfFirstFieldBinding;
int length = tokens.length;
if (index == length) { // restrictiveFlag == FIELD
- constant =
- FieldReference.getConstantFor((FieldBinding) binding, false, this, scope, index - 1);
+ this.constant = FieldReference.getConstantFor((FieldBinding) binding, this, false, scope);
return type;
}
// allocation of the fieldBindings array and its respective constants
otherDepths = new int[otherBindingsLength];
// fill the first constant (the one of the binding)
- constant =
+ this.constant =
((bits & FIELD) != 0)
- ? FieldReference.getConstantFor((FieldBinding) binding, false, this, scope, index - 1)
+ ? FieldReference.getConstantFor((FieldBinding) binding, this, false, scope)
: ((VariableBinding) binding).constant;
// save first depth, since will be updated by visibility checks of other bindings
int firstDepth = (bits & DepthMASK) >> DepthSHIFT;
if (field.isValidBinding()) {
if (isFieldUseDeprecated(field, scope))
scope.problemReporter().deprecatedField(field, this);
- Constant someConstant =
- FieldReference.getConstantFor(field, false, this, scope, place);
+ Constant someConstant = FieldReference.getConstantFor(field, this, false, scope);
// constant propagation can only be performed as long as the previous one is a constant too.
- if (constant != NotAConstant) {
- constant = someConstant;
+ if (this.constant != NotAConstant) {
+ this.constant = someConstant;
}
+
type = field.type;
index++;
+
+ if (field.isStatic()) {
+ // static field accessed through receiver? legal but unoptimal (optional warning)
+ scope.problemReporter().unnecessaryReceiverForStaticField(this, field);
+ }
+
} else {
constant = NotAConstant; //don't fill other constants slots...
scope.problemReporter().invalidField(this, field, index, type);
if (((bits & DepthMASK) == 0) || (constant != NotAConstant)) {
return;
}
- 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 :
- currentScope.emulateOuterAccess((LocalVariableBinding) binding);
+ if ((bits & RestrictiveFlagMASK) == LOCAL) {
+ currentScope.emulateOuterAccess((LocalVariableBinding) binding);
}
}
public void manageSyntheticReadAccessIfNecessary(
}
// 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
- if (fieldBinding.declaringClass != lastReceiverType
- && !lastReceiverType.isArrayType()
- && fieldBinding.declaringClass != null
- && fieldBinding.constant == NotAConstant
- && ((currentScope.environment().options.complianceLevel >= CompilerOptions.JDK1_4
- && (index > 0 || indexOfFirstFieldBinding > 1 || !fieldBinding.isStatic())
- && fieldBinding.declaringClass.id != T_Object)
- || !fieldBinding.declaringClass.canBeSeenBy(currentScope))){
- if (index == 0){
- this.codegenBinding = currentScope.enclosingSourceType().getUpdatedFieldBinding(fieldBinding, (ReferenceBinding)lastReceiverType);
- } else {
- if (this.otherCodegenBindings == this.otherBindings){
- int l = this.otherBindings.length;
- System.arraycopy(this.otherBindings, 0, this.otherCodegenBindings = new FieldBinding[l], 0, l);
- }
- this.otherCodegenBindings[index-1] = currentScope.enclosingSourceType().getUpdatedFieldBinding(fieldBinding, (ReferenceBinding)lastReceiverType);
- }
- }
+ // NOTE: from target 1.2 on, field's declaring class is touched if any different from receiver type
+// if (fieldBinding.declaringClass != lastReceiverType
+// && !lastReceiverType.isArrayType()
+// && fieldBinding.declaringClass != null
+// && fieldBinding.constant == NotAConstant
+// && ((currentScope.environment().options.targetJDK >= CompilerOptions.JDK1_2
+// && (index > 0 || indexOfFirstFieldBinding > 1 || !fieldBinding.isStatic())
+// && fieldBinding.declaringClass.id != T_Object)
+// || !fieldBinding.declaringClass.canBeSeenBy(currentScope))){
+// if (index == 0){
+// this.codegenBinding = currentScope.enclosingSourceType().getUpdatedFieldBinding(fieldBinding, (ReferenceBinding)lastReceiverType);
+// } else {
+// if (this.otherCodegenBindings == this.otherBindings){
+// int l = this.otherBindings.length;
+// System.arraycopy(this.otherBindings, 0, this.otherCodegenBindings = new FieldBinding[l], 0, l);
+// }
+// this.otherCodegenBindings[index-1] = currentScope.enclosingSourceType().getUpdatedFieldBinding(fieldBinding, (ReferenceBinding)lastReceiverType);
+// }
+// }
}
/*
* No need to emulate access to protected fields since not implicitly accessed
}
// 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
- if (fieldBinding.declaringClass != lastReceiverType
- && !lastReceiverType.isArrayType()
- && fieldBinding.declaringClass != null
- && fieldBinding.constant == NotAConstant
- && ((currentScope.environment().options.complianceLevel >= CompilerOptions.JDK1_4
- && (fieldBinding != binding || indexOfFirstFieldBinding > 1 || !fieldBinding.isStatic())
- && fieldBinding.declaringClass.id != T_Object)
- || !fieldBinding.declaringClass.canBeSeenBy(currentScope))){
- if (fieldBinding == binding){
- this.codegenBinding = currentScope.enclosingSourceType().getUpdatedFieldBinding(fieldBinding, (ReferenceBinding)lastReceiverType);
- } else {
- if (this.otherCodegenBindings == this.otherBindings){
- int l = this.otherBindings.length;
- System.arraycopy(this.otherBindings, 0, this.otherCodegenBindings = new FieldBinding[l], 0, l);
- }
- this.otherCodegenBindings[this.otherCodegenBindings.length-1] = currentScope.enclosingSourceType().getUpdatedFieldBinding(fieldBinding, (ReferenceBinding)lastReceiverType);
- }
- }
+ // NOTE: from target 1.2 on, field's declaring class is touched if any different from receiver type
+// if (fieldBinding.declaringClass != lastReceiverType
+// && !lastReceiverType.isArrayType()
+// && fieldBinding.declaringClass != null
+// && fieldBinding.constant == NotAConstant
+// && ((currentScope.environment().options.targetJDK >= CompilerOptions.JDK1_2
+// && (fieldBinding != binding || indexOfFirstFieldBinding > 1 || !fieldBinding.isStatic())
+// && fieldBinding.declaringClass.id != T_Object)
+// || !fieldBinding.declaringClass.canBeSeenBy(currentScope))){
+// if (fieldBinding == binding){
+// this.codegenBinding = currentScope.enclosingSourceType().getUpdatedFieldBinding(fieldBinding, (ReferenceBinding)lastReceiverType);
+// } else {
+// if (this.otherCodegenBindings == this.otherBindings){
+// int l = this.otherBindings.length;
+// System.arraycopy(this.otherBindings, 0, this.otherCodegenBindings = new FieldBinding[l], 0, l);
+// }
+// this.otherCodegenBindings[this.otherCodegenBindings.length-1] = currentScope.enclosingSourceType().getUpdatedFieldBinding(fieldBinding, (ReferenceBinding)lastReceiverType);
+// }
+// }
}
/**
}
return null;
}
+ public StringBuffer printExpression(int indent, StringBuffer output) {
+
+ for (int i = 0; i < tokens.length; i++) {
+ if (i > 0) output.append('.');
+ output.append(tokens[i]);
+ }
+ return output;
+ }
public TypeBinding resolveType(BlockScope scope) {
// field and/or local are done before type lookups
// the only available value for the restrictiveFlag BEFORE
this);
bits &= ~RestrictiveFlagMASK; // clear bits
bits |= LOCAL;
- return getOtherFieldBindings(scope);
+ return this.resolvedType = getOtherFieldBindings(scope);
}
if (binding instanceof FieldBinding) {
// check for forward references
FieldBinding fieldBinding = (FieldBinding) binding;
MethodScope methodScope = scope.methodScope();
if (methodScope.enclosingSourceType() == fieldBinding.declaringClass
- && methodScope.fieldDeclarationIndex != methodScope.NotInFieldDecl
+ && methodScope.fieldDeclarationIndex != MethodScope.NotInFieldDecl
&& fieldBinding.id >= methodScope.fieldDeclarationIndex) {
if ((!fieldBinding.isStatic() || methodScope.isStatic)
&& this.indexOfFirstFieldBinding == 1)
}
bits &= ~RestrictiveFlagMASK; // clear bits
bits |= FIELD;
- return getOtherFieldBindings(scope);
+
+ // check for deprecated receiver type
+ // deprecation check for receiver type if not first token
+ if (indexOfFirstFieldBinding > 1) {
+ if (isTypeUseDeprecated(this.actualReceiverType, scope))
+ scope.problemReporter().deprecatedType(this.actualReceiverType, this);
+ }
+
+ return this.resolvedType = getOtherFieldBindings(scope);
}
// thus it was a type
bits &= ~RestrictiveFlagMASK; // clear bits
bits |= TYPE;
case TYPE : //=============only type ==============
- //deprecated test
if (isTypeUseDeprecated((TypeBinding) binding, scope))
scope.problemReporter().deprecatedType((TypeBinding) binding, this);
- return (TypeBinding) binding;
+ return this.resolvedType = (TypeBinding) binding;
}
}
//========error cases===============
- return this.reportError(scope);
+ return this.resolvedType = this.reportError(scope);
}
public void setFieldIndex(int index) {
this.indexOfFirstFieldBinding = index;
public String unboundReferenceErrorName() {
return new String(tokens[0]);
}
-}
\ No newline at end of file
+}
git://git.phpeclipse.com / phpeclipse.git / blobdiff