/*******************************************************************************
- * 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.codegen.CodeStream;
+import net.sourceforge.phpdt.internal.compiler.ASTVisitor;
import net.sourceforge.phpdt.internal.compiler.flow.FlowContext;
import net.sourceforge.phpdt.internal.compiler.flow.FlowInfo;
-import net.sourceforge.phpdt.internal.compiler.impl.CompilerOptions;
import net.sourceforge.phpdt.internal.compiler.impl.Constant;
import net.sourceforge.phpdt.internal.compiler.lookup.BindingIds;
import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
import net.sourceforge.phpdt.internal.compiler.lookup.FieldBinding;
import net.sourceforge.phpdt.internal.compiler.lookup.InvocationSite;
import net.sourceforge.phpdt.internal.compiler.lookup.MethodBinding;
-import net.sourceforge.phpdt.internal.compiler.lookup.MethodScope;
import net.sourceforge.phpdt.internal.compiler.lookup.ReferenceBinding;
import net.sourceforge.phpdt.internal.compiler.lookup.Scope;
import net.sourceforge.phpdt.internal.compiler.lookup.SourceTypeBinding;
public class FieldReference extends Reference implements InvocationSite {
public Expression receiver;
+
public char[] token;
+
public FieldBinding binding, codegenBinding;
- public long nameSourcePosition; //(start<<32)+end
+
+ public long nameSourcePosition; // (start<<32)+end
+
MethodBinding syntheticReadAccessor, syntheticWriteAccessor;
+
public TypeBinding receiverType;
public FieldReference(char[] source, long pos) {
token = source;
nameSourcePosition = pos;
- //by default the position are the one of the field (not true for super access)
- sourceStart = (int) (pos >>> 32);
- sourceEnd = (int) (pos & 0x00000000FFFFFFFFL);
+ // by default the position are the one of the field (not true for super
+ // access)
+ // sourceStart = (int) (pos >>> 32);
+ // sourceEnd = (int) (pos & 0x00000000FFFFFFFFL);
+ sourceStart = (int) pos;
+ sourceEnd = sourceStart + source.length;
bits |= BindingIds.FIELD;
}
- public FlowInfo analyseAssignment(
- BlockScope currentScope,
- FlowContext flowContext,
- FlowInfo flowInfo,
- Assignment assignment,
- boolean isCompound) {
+ 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
- if (binding.isFinal()
- && receiver.isThis()
- && currentScope.allowBlankFinalFieldAssignment(binding)
- && (!flowInfo.isDefinitelyAssigned(binding))) {
- currentScope.problemReporter().uninitializedBlankFinalField(binding, this);
- // we could improve error msg here telling "cannot use compound assignment on final blank field"
+ if (isCompound) { // check the variable part is initialized if blank
+ // final
+ if (binding.isBlankFinal() && receiver.isThis()
+ && currentScope.allowBlankFinalFieldAssignment(binding)
+ && (!flowInfo.isDefinitelyAssigned(binding))) {
+ currentScope.problemReporter().uninitializedBlankFinalField(
+ binding, this);
+ // we could improve error msg here telling "cannot use compound
+ // assignment on final blank field"
}
manageSyntheticReadAccessIfNecessary(currentScope);
}
+ flowInfo = receiver.analyseCode(currentScope, flowContext, flowInfo,
+ !binding.isStatic()).unconditionalInits();
if (assignment.expression != null) {
- flowInfo =
- assignment
- .expression
- .analyseCode(currentScope, flowContext, flowInfo)
- .unconditionalInits();
+ flowInfo = assignment.expression.analyseCode(currentScope,
+ flowContext, flowInfo).unconditionalInits();
}
- flowInfo =
- receiver
- .analyseCode(currentScope, flowContext, flowInfo, !binding.isStatic())
- .unconditionalInits();
manageSyntheticWriteAccessIfNecessary(currentScope);
- // check if assigning a final field
+ // check if assigning a final field
if (binding.isFinal()) {
// in a context where it can be assigned?
- if (receiver.isThis()
- && !(receiver instanceof QualifiedThisReference)
- && currentScope.allowBlankFinalFieldAssignment(binding)) {
+ if (binding.isBlankFinal() && !isCompound && receiver.isThis()
+ && !(receiver instanceof QualifiedThisReference)
+ && ((receiver.bits & ParenthesizedMASK) == 0) // (this).x
+ // is
+ // forbidden
+ && currentScope.allowBlankFinalFieldAssignment(binding)) {
if (flowInfo.isPotentiallyAssigned(binding)) {
- currentScope.problemReporter().duplicateInitializationOfBlankFinalField(
- binding,
- this);
+ currentScope.problemReporter()
+ .duplicateInitializationOfBlankFinalField(binding,
+ this);
+ } else {
+ flowContext.recordSettingFinal(binding, this);
}
flowInfo.markAsDefinitelyAssigned(binding);
- flowContext.recordSettingFinal(binding, this);
} else {
// assigning a final field outside an initializer or constructor
- currentScope.problemReporter().cannotAssignToFinalField(binding, this);
+ // or wrong reference
+ currentScope.problemReporter().cannotAssignToFinalField(
+ binding, this);
}
}
return flowInfo;
}
- public FlowInfo analyseCode(
- BlockScope currentScope,
- FlowContext flowContext,
- FlowInfo 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) {
+ public FlowInfo analyseCode(BlockScope currentScope,
+ FlowContext flowContext, FlowInfo flowInfo, boolean valueRequired) {
- receiver.analyseCode(currentScope, flowContext, flowInfo, !binding.isStatic());
+ receiver.analyseCode(currentScope, flowContext, flowInfo, !binding
+ .isStatic());
if (valueRequired) {
manageSyntheticReadAccessIfNecessary(currentScope);
}
return binding;
}
- public void generateAssignment(
- BlockScope currentScope,
- CodeStream codeStream,
- Assignment assignment,
- boolean valueRequired) {
-
- receiver.generateCode(
- currentScope,
- codeStream,
- !this.codegenBinding.isStatic());
- assignment.expression.generateCode(currentScope, codeStream, true);
- fieldStore(
- codeStream,
- this.codegenBinding,
- syntheticWriteAccessor,
- valueRequired);
- if (valueRequired) {
- codeStream.generateImplicitConversion(assignment.implicitConversion);
- }
- }
+ // public void generateAssignment(
+ // BlockScope currentScope,
+ // CodeStream codeStream,
+ // Assignment assignment,
+ // boolean valueRequired) {
+ //
+ // receiver.generateCode(
+ // currentScope,
+ // codeStream,
+ // !this.codegenBinding.isStatic());
+ // assignment.expression.generateCode(currentScope, codeStream, true);
+ // fieldStore(
+ // codeStream,
+ // this.codegenBinding,
+ // syntheticWriteAccessor,
+ // valueRequired);
+ // if (valueRequired) {
+ // codeStream.generateImplicitConversion(assignment.implicitConversion);
+ // }
+ // }
/**
* Field reference code generation
- *
- * @param currentScope org.eclipse.jdt.internal.compiler.lookup.BlockScope
- * @param codeStream org.eclipse.jdt.internal.compiler.codegen.CodeStream
- * @param valueRequired boolean
+ *
+ * @param currentScope
+ * net.sourceforge.phpdt.internal.compiler.lookup.BlockScope
+ * @param codeStream
+ * net.sourceforge.phpdt.internal.compiler.codegen.CodeStream
+ * @param valueRequired
+ * boolean
*/
- public void generateCode(
- BlockScope currentScope,
- CodeStream codeStream,
- boolean valueRequired) {
-
- int pc = codeStream.position;
- if (constant != NotAConstant) {
- if (valueRequired) {
- codeStream.generateConstant(constant, implicitConversion);
- }
- } else {
- boolean isStatic = this.codegenBinding.isStatic();
- receiver.generateCode(
- currentScope,
- codeStream,
- valueRequired && (!isStatic) && (this.codegenBinding.constant == NotAConstant));
- if (valueRequired) {
- if (this.codegenBinding.constant == NotAConstant) {
- if (this.codegenBinding.declaringClass == null) { // array length
- codeStream.arraylength();
- } else {
- if (syntheticReadAccessor == null) {
- if (isStatic) {
- codeStream.getstatic(this.codegenBinding);
- } else {
- codeStream.getfield(this.codegenBinding);
- }
- } else {
- codeStream.invokestatic(syntheticReadAccessor);
- }
- }
- codeStream.generateImplicitConversion(implicitConversion);
- } else {
- codeStream.generateConstant(this.codegenBinding.constant, implicitConversion);
- }
- }
- }
- codeStream.recordPositionsFrom(pc, this.sourceStart);
- }
-
- public void generateCompoundAssignment(
- BlockScope currentScope,
- CodeStream codeStream,
- Expression expression,
- int operator,
- int assignmentImplicitConversion,
- boolean valueRequired) {
-
- boolean isStatic;
- receiver.generateCode(
- currentScope,
- codeStream,
- !(isStatic = this.codegenBinding.isStatic()));
- if (isStatic) {
- if (syntheticReadAccessor == null) {
- codeStream.getstatic(this.codegenBinding);
- } else {
- codeStream.invokestatic(syntheticReadAccessor);
- }
- } else {
- codeStream.dup();
- if (syntheticReadAccessor == null) {
- codeStream.getfield(this.codegenBinding);
- } else {
- codeStream.invokestatic(syntheticReadAccessor);
- }
- }
- 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);
- }
- fieldStore(
- codeStream,
- this.codegenBinding,
- syntheticWriteAccessor,
- valueRequired);
- }
-
- public void generatePostIncrement(
- BlockScope currentScope,
- CodeStream codeStream,
- CompoundAssignment postIncrement,
- boolean valueRequired) {
-
- boolean isStatic;
- receiver.generateCode(
- currentScope,
- codeStream,
- !(isStatic = this.codegenBinding.isStatic()));
- if (isStatic) {
- if (syntheticReadAccessor == null) {
- codeStream.getstatic(this.codegenBinding);
- } else {
- codeStream.invokestatic(syntheticReadAccessor);
- }
- } else {
- codeStream.dup();
- if (syntheticReadAccessor == null) {
- codeStream.getfield(this.codegenBinding);
- } else {
- codeStream.invokestatic(syntheticReadAccessor);
- }
- }
- if (valueRequired) {
- if (isStatic) {
- if ((this.codegenBinding.type == LongBinding)
- || (this.codegenBinding.type == DoubleBinding)) {
- codeStream.dup2();
- } else {
- codeStream.dup();
- }
- } else { // Stack: [owner][old field value] ---> [old field value][owner][old field value]
- if ((this.codegenBinding.type == LongBinding)
- || (this.codegenBinding.type == DoubleBinding)) {
- codeStream.dup2_x1();
- } else {
- codeStream.dup_x1();
- }
- }
- }
- codeStream.generateConstant(
- postIncrement.expression.constant,
- implicitConversion);
- codeStream.sendOperator(postIncrement.operator, this.codegenBinding.type.id);
- codeStream.generateImplicitConversion(
- postIncrement.assignmentImplicitConversion);
- fieldStore(codeStream, this.codegenBinding, syntheticWriteAccessor, false);
- }
-
- public static final Constant getConstantFor(
- FieldBinding binding,
- boolean implicitReceiver,
- Reference reference,
- Scope referenceScope,
- int indexInQualification) {
-
- //propagation of the constant.
-
- //ref can be a FieldReference, a SingleNameReference or a QualifiedNameReference
- //indexInQualification may have a value greater than zero only for QualifiednameReference
- //if ref==null then indexInQualification==0 AND implicitReceiver == false. This case is a
- //degenerated case where a fake reference field (null)
- //is associted to a real FieldBinding in order
- //to allow its constant computation using the regular path (i.e. find the fieldDeclaration
- //and proceed to its type resolution). As implicitReceiver is false, no error reporting
- //against ref will be used ==> no nullPointerException risk ....
-
- //special treatment for langage-built-in field (their declaring class is null)
+ // public void generateCode(
+ // BlockScope currentScope,
+ // CodeStream codeStream,
+ // boolean valueRequired) {
+ //
+ // int pc = codeStream.position;
+ // if (constant != NotAConstant) {
+ // if (valueRequired) {
+ // codeStream.generateConstant(constant, implicitConversion);
+ // }
+ // } else {
+ // boolean isStatic = this.codegenBinding.isStatic();
+ // receiver.generateCode(currentScope, codeStream, !isStatic);
+ // if (valueRequired) {
+ // if (this.codegenBinding.constant == NotAConstant) {
+ // if (this.codegenBinding.declaringClass == null) { // array length
+ // codeStream.arraylength();
+ // } else {
+ // if (syntheticReadAccessor == null) {
+ // if (isStatic) {
+ // codeStream.getstatic(this.codegenBinding);
+ // } else {
+ // codeStream.getfield(this.codegenBinding);
+ // }
+ // } else {
+ // codeStream.invokestatic(syntheticReadAccessor);
+ // }
+ // }
+ // codeStream.generateImplicitConversion(implicitConversion);
+ // } else {
+ // if (!isStatic) {
+ // codeStream.invokeObjectGetClass(); // perform null check
+ // codeStream.pop();
+ // }
+ // codeStream.generateConstant(this.codegenBinding.constant,
+ // implicitConversion);
+ // }
+ // } else {
+ // if (!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) {
+ //
+ // boolean isStatic;
+ // receiver.generateCode(
+ // currentScope,
+ // codeStream,
+ // !(isStatic = this.codegenBinding.isStatic()));
+ // if (isStatic) {
+ // if (syntheticReadAccessor == null) {
+ // codeStream.getstatic(this.codegenBinding);
+ // } else {
+ // codeStream.invokestatic(syntheticReadAccessor);
+ // }
+ // } else {
+ // codeStream.dup();
+ // if (syntheticReadAccessor == null) {
+ // codeStream.getfield(this.codegenBinding);
+ // } else {
+ // codeStream.invokestatic(syntheticReadAccessor);
+ // }
+ // }
+ // 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);
+ // }
+ // fieldStore(
+ // codeStream,
+ // this.codegenBinding,
+ // syntheticWriteAccessor,
+ // valueRequired);
+ // }
+ //
+ // public void generatePostIncrement(
+ // BlockScope currentScope,
+ // CodeStream codeStream,
+ // CompoundAssignment postIncrement,
+ // boolean valueRequired) {
+ //
+ // boolean isStatic;
+ // receiver.generateCode(
+ // currentScope,
+ // codeStream,
+ // !(isStatic = this.codegenBinding.isStatic()));
+ // if (isStatic) {
+ // if (syntheticReadAccessor == null) {
+ // codeStream.getstatic(this.codegenBinding);
+ // } else {
+ // codeStream.invokestatic(syntheticReadAccessor);
+ // }
+ // } else {
+ // codeStream.dup();
+ // if (syntheticReadAccessor == null) {
+ // codeStream.getfield(this.codegenBinding);
+ // } else {
+ // codeStream.invokestatic(syntheticReadAccessor);
+ // }
+ // }
+ // if (valueRequired) {
+ // if (isStatic) {
+ // if ((this.codegenBinding.type == LongBinding)
+ // || (this.codegenBinding.type == DoubleBinding)) {
+ // codeStream.dup2();
+ // } else {
+ // codeStream.dup();
+ // }
+ // } else { // Stack: [owner][old field value] ---> [old field
+ // value][owner][old field value]
+ // if ((this.codegenBinding.type == LongBinding)
+ // || (this.codegenBinding.type == DoubleBinding)) {
+ // codeStream.dup2_x1();
+ // } else {
+ // codeStream.dup_x1();
+ // }
+ // }
+ // }
+ // codeStream.generateConstant(
+ // postIncrement.expression.constant,
+ // implicitConversion);
+ // codeStream.sendOperator(postIncrement.operator,
+ // this.codegenBinding.type.id);
+ // codeStream.generateImplicitConversion(
+ // postIncrement.assignmentImplicitConversion);
+ // fieldStore(codeStream, this.codegenBinding, syntheticWriteAccessor,
+ // false);
+ // }
+ public static final Constant getConstantFor(FieldBinding binding,
+ Reference reference, boolean isImplicit, Scope referenceScope) {
+
+ // propagation of the constant.
+
+ // ref can be a FieldReference, a SingleNameReference or a
+ // QualifiedNameReference
+ // indexInQualification may have a value greater than zero only for
+ // QualifiednameReference
+ // if ref==null then indexInQualification==0 AND implicitReceiver ==
+ // false. This case is a
+ // degenerated case where a fake reference field (null)
+ // is associted to a real FieldBinding in order
+ // to allow its constant computation using the regular path (in other
+ // words, find the fieldDeclaration
+ // and proceed to its type resolution). As implicitReceiver is false, no
+ // error reporting
+ // against ref will be used ==> no nullPointerException risk ....
+
+ // special treatment for langage-built-in field (their declaring class
+ // is null)
if (binding.declaringClass == null) {
- //currently only one field "length" : the constant computation is never done
+ // currently only one field "length" : the constant computation is
+ // never done
return NotAConstant;
}
if (!binding.isFinal()) {
return binding.constant = NotAConstant;
}
if (binding.constant != null) {
- if (indexInQualification == 0) {
- return binding.constant;
- }
- //see previous comment for the (sould-always-be) valid cast
- QualifiedNameReference qualifiedReference = (QualifiedNameReference) reference;
- if (indexInQualification == (qualifiedReference.indexOfFirstFieldBinding - 1)) {
+ if (isImplicit
+ || (reference instanceof QualifiedNameReference && binding == ((QualifiedNameReference) reference).binding)) {
return binding.constant;
}
return NotAConstant;
}
- //The field has not been yet type checked.
- //It also means that the field is not coming from a class that
- //has already been compiled. It can only be from a class within
- //compilation units to process. Thus the field is NOT from a BinaryTypeBinbing
+ // The field has not been yet type checked.
+ // It also means that the field is not coming from a class that
+ // has already been compiled. It can only be from a class within
+ // compilation units to process. Thus the field is NOT from a
+ // BinaryTypeBinbing
SourceTypeBinding typeBinding = (SourceTypeBinding) binding.declaringClass;
TypeDeclaration typeDecl = typeBinding.scope.referenceContext;
FieldDeclaration fieldDecl = typeDecl.declarationOf(binding);
- //what scope to use (depend on the staticness of the field binding)
- MethodScope fieldScope =
- binding.isStatic()
- ? typeDecl.staticInitializerScope
- : typeDecl.initializerScope;
-
- if (implicitReceiver) { //Determine if the ref is legal in the current class of the field
- //i.e. not a forward reference .... (they are allowed when the receiver is explicit ! ... Please don't ask me why !...yet another java mystery...)
- if (fieldScope.fieldDeclarationIndex == MethodScope.NotInFieldDecl) {
- // no field is currently being analysed in typeDecl
- fieldDecl.resolve(fieldScope); //side effect on binding :-) ...
- return binding.constant;
- }
- //We are re-entering the same class fields analysing
- if ((reference != null)
- && (binding.declaringClass == referenceScope.enclosingSourceType()) // only complain for access inside same type
- && (binding.id > fieldScope.fieldDeclarationIndex)) {
- //forward reference. The declaration remains unresolved.
- referenceScope.problemReporter().forwardReference(reference, indexInQualification, typeBinding);
- return NotAConstant;
- }
- fieldDecl.resolve(fieldScope); //side effect on binding :-) ...
- return binding.constant;
- }
- //the field reference is explicity. It has to be a "simple" like field reference to get the
- //constant propagation. For example in Packahe.Type.field1.field2 , field1 may have its
- //constant having a propagation where field2 is always not propagating its
- if (indexInQualification == 0) {
- fieldDecl.resolve(fieldScope); //side effect on binding :-) ...
- return binding.constant;
- }
- // Side-effect on the field binding may not be propagated out for the qualified reference
- // unless it occurs in first place of the name sequence
- fieldDecl.resolve(fieldScope); //side effect on binding :-) ...
- //see previous comment for the cast that should always be valid
- QualifiedNameReference qualifiedReference = (QualifiedNameReference) reference;
- if (indexInQualification == (qualifiedReference.indexOfFirstFieldBinding - 1)) {
+ fieldDecl.resolve(binding.isStatic() // side effect on binding
+ ? typeDecl.staticInitializerScope
+ : typeDecl.initializerScope);
+
+ if (isImplicit
+ || (reference instanceof QualifiedNameReference && binding == ((QualifiedNameReference) reference).binding)) {
return binding.constant;
- } else {
- return NotAConstant;
}
+ return NotAConstant;
}
public boolean isSuperAccess() {
}
/*
- * No need to emulate access to protected fields since not implicitly accessed
+ * No need to emulate access to protected fields since not implicitly
+ * accessed
*/
public void manageSyntheticReadAccessIfNecessary(BlockScope currentScope) {
if (binding.isPrivate()) {
if ((currentScope.enclosingSourceType() != binding.declaringClass)
- && (binding.constant == NotAConstant)) {
- syntheticReadAccessor =
- ((SourceTypeBinding) binding.declaringClass).addSyntheticMethod(binding, true);
- currentScope.problemReporter().needToEmulateFieldReadAccess(binding, this);
+ && (binding.constant == NotAConstant)) {
+ syntheticReadAccessor = ((SourceTypeBinding) binding.declaringClass)
+ .addSyntheticMethod(binding, true);
+ currentScope.problemReporter().needToEmulateFieldReadAccess(
+ binding, this);
return;
}
- } else if (receiver instanceof QualifiedSuperReference) { // qualified super
+ } else if (receiver instanceof QualifiedSuperReference) { // qualified
+ // super
// qualified super need emulation always
- SourceTypeBinding destinationType =
- (SourceTypeBinding) (((QualifiedSuperReference) receiver)
- .currentCompatibleType);
- syntheticReadAccessor = destinationType.addSyntheticMethod(binding, true);
- currentScope.problemReporter().needToEmulateFieldReadAccess(binding, this);
+ SourceTypeBinding destinationType = (SourceTypeBinding) (((QualifiedSuperReference) receiver).currentCompatibleType);
+ syntheticReadAccessor = destinationType.addSyntheticMethod(binding,
+ true);
+ currentScope.problemReporter().needToEmulateFieldReadAccess(
+ binding, this);
return;
} else if (binding.isProtected()) {
SourceTypeBinding enclosingSourceType;
if (((bits & DepthMASK) != 0)
- && binding.declaringClass.getPackage()
- != (enclosingSourceType = currentScope.enclosingSourceType()).getPackage()) {
-
- SourceTypeBinding currentCompatibleType =
- (SourceTypeBinding) enclosingSourceType.enclosingTypeAt(
- (bits & DepthMASK) >> DepthSHIFT);
- syntheticReadAccessor = currentCompatibleType.addSyntheticMethod(binding, true);
- currentScope.problemReporter().needToEmulateFieldReadAccess(binding, this);
+ && binding.declaringClass.getPackage() != (enclosingSourceType = currentScope
+ .enclosingSourceType()).getPackage()) {
+
+ SourceTypeBinding currentCompatibleType = (SourceTypeBinding) enclosingSourceType
+ .enclosingTypeAt((bits & DepthMASK) >> DepthSHIFT);
+ syntheticReadAccessor = currentCompatibleType
+ .addSyntheticMethod(binding, true);
+ currentScope.problemReporter().needToEmulateFieldReadAccess(
+ binding, 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
- if (binding.declaringClass != this.receiverType
- && !this.receiverType.isArrayType()
- && binding.declaringClass != null // array.length
- && binding.constant == NotAConstant
- && ((currentScope.environment().options.complianceLevel >= CompilerOptions.JDK1_4
- && binding.declaringClass.id != T_Object)
- //no change for Object fields (in case there was)
- || !binding.declaringClass.canBeSeenBy(currentScope))) {
- this.codegenBinding =
- currentScope.enclosingSourceType().getUpdatedFieldBinding(
- binding,
- (ReferenceBinding) this.receiverType);
- }
+ // 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
+ // if (binding.declaringClass != this.receiverType
+ // && !this.receiverType.isArrayType()
+ // && binding.declaringClass != null // array.length
+ // && binding.constant == NotAConstant
+ // && ((currentScope.environment().options.targetJDK >=
+ // CompilerOptions.JDK1_2
+ // && binding.declaringClass.id != T_Object)
+ // //no change for Object fields (in case there was)
+ // || !binding.declaringClass.canBeSeenBy(currentScope))) {
+ // this.codegenBinding =
+ // currentScope.enclosingSourceType().getUpdatedFieldBinding(
+ // binding,
+ // (ReferenceBinding) this.receiverType);
+ // }
}
/*
- * No need to emulate access to protected fields since not implicitly accessed
+ * No need to emulate access to protected fields since not implicitly
+ * accessed
*/
public void manageSyntheticWriteAccessIfNecessary(BlockScope currentScope) {
if (binding.isPrivate()) {
if (currentScope.enclosingSourceType() != binding.declaringClass) {
- syntheticWriteAccessor =
- ((SourceTypeBinding) binding.declaringClass).addSyntheticMethod(binding, false);
- currentScope.problemReporter().needToEmulateFieldWriteAccess(binding, this);
+ syntheticWriteAccessor = ((SourceTypeBinding) binding.declaringClass)
+ .addSyntheticMethod(binding, false);
+ currentScope.problemReporter().needToEmulateFieldWriteAccess(
+ binding, this);
return;
}
- } else if (receiver instanceof QualifiedSuperReference) { // qualified super
+ } else if (receiver instanceof QualifiedSuperReference) { // qualified
+ // super
// qualified super need emulation always
- SourceTypeBinding destinationType =
- (SourceTypeBinding) (((QualifiedSuperReference) receiver)
- .currentCompatibleType);
- syntheticWriteAccessor = destinationType.addSyntheticMethod(binding, false);
- currentScope.problemReporter().needToEmulateFieldWriteAccess(binding, this);
+ SourceTypeBinding destinationType = (SourceTypeBinding) (((QualifiedSuperReference) receiver).currentCompatibleType);
+ syntheticWriteAccessor = destinationType.addSyntheticMethod(
+ binding, false);
+ currentScope.problemReporter().needToEmulateFieldWriteAccess(
+ binding, this);
return;
} else if (binding.isProtected()) {
SourceTypeBinding enclosingSourceType;
if (((bits & DepthMASK) != 0)
- && binding.declaringClass.getPackage()
- != (enclosingSourceType = currentScope.enclosingSourceType()).getPackage()) {
-
- SourceTypeBinding currentCompatibleType =
- (SourceTypeBinding) enclosingSourceType.enclosingTypeAt(
- (bits & DepthMASK) >> DepthSHIFT);
- syntheticWriteAccessor =
- currentCompatibleType.addSyntheticMethod(binding, false);
- currentScope.problemReporter().needToEmulateFieldWriteAccess(binding, this);
+ && binding.declaringClass.getPackage() != (enclosingSourceType = currentScope
+ .enclosingSourceType()).getPackage()) {
+
+ SourceTypeBinding currentCompatibleType = (SourceTypeBinding) enclosingSourceType
+ .enclosingTypeAt((bits & DepthMASK) >> DepthSHIFT);
+ syntheticWriteAccessor = currentCompatibleType
+ .addSyntheticMethod(binding, false);
+ currentScope.problemReporter().needToEmulateFieldWriteAccess(
+ binding, 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
- if (binding.declaringClass != this.receiverType
- && !this.receiverType.isArrayType()
- && binding.declaringClass != null // array.length
- && binding.constant == NotAConstant
- && ((currentScope.environment().options.complianceLevel >= CompilerOptions.JDK1_4
- && binding.declaringClass.id != T_Object)
- //no change for Object fields (in case there was)
- || !binding.declaringClass.canBeSeenBy(currentScope))) {
- this.codegenBinding =
- currentScope.enclosingSourceType().getUpdatedFieldBinding(
- binding,
- (ReferenceBinding) this.receiverType);
- }
+ // 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
+ // if (binding.declaringClass != this.receiverType
+ // && !this.receiverType.isArrayType()
+ // && binding.declaringClass != null // array.length
+ // && binding.constant == NotAConstant
+ // && ((currentScope.environment().options.targetJDK >=
+ // CompilerOptions.JDK1_2
+ // && binding.declaringClass.id != T_Object)
+ // //no change for Object fields (in case there was)
+ // || !binding.declaringClass.canBeSeenBy(currentScope))) {
+ // this.codegenBinding =
+ // currentScope.enclosingSourceType().getUpdatedFieldBinding(
+ // binding,
+ // (ReferenceBinding) this.receiverType);
+ // }
}
public TypeBinding resolveType(BlockScope scope) {
// Answer the signature type of the field.
// constants are propaged when the field is final
- // and initialized with a (compile time) constant
+ // and initialized with a (compile time) constant
- // regular receiver reference
+ // regular receiver reference
this.receiverType = receiver.resolveType(scope);
if (this.receiverType == null) {
constant = NotAConstant;
return null;
}
- // the case receiverType.isArrayType and token = 'length' is handled by the scope API
- this.codegenBinding =
- this.binding = scope.getField(this.receiverType, token, this);
+ // the case receiverType.isArrayType and token = 'length' is handled by
+ // the scope API
+ this.codegenBinding = this.binding = scope.getField(this.receiverType,
+ token, this);
if (!binding.isValidBinding()) {
constant = NotAConstant;
scope.problemReporter().invalidField(this, this.receiverType);
if (isFieldUseDeprecated(binding, scope))
scope.problemReporter().deprecatedField(binding, this);
- // check for this.x in static is done in the resolution of the receiver
- constant =
- FieldReference.getConstantFor(
- binding,
- receiver == ThisReference.ThisImplicit,
- this,
- scope,
- 0);
- if (receiver != ThisReference.ThisImplicit)
+ boolean isImplicitThisRcv = receiver.isImplicitThis();
+ constant = FieldReference.getConstantFor(binding, this,
+ isImplicitThisRcv, scope);
+ if (!isImplicitThisRcv) {
constant = NotAConstant;
-
- return binding.type;
+ }
+ if (binding.isStatic()) {
+ // static field accessed through receiver? legal but unoptimal
+ // (optional warning)
+ if (!(isImplicitThisRcv || receiver.isSuper() || (receiver instanceof NameReference && (((NameReference) receiver).bits & BindingIds.TYPE) != 0))) {
+ scope.problemReporter().unnecessaryReceiverForStaticField(this,
+ binding);
+ }
+ }
+ return this.resolvedType = binding.type;
}
public void setActualReceiverType(ReferenceBinding receiverType) {
public void setDepth(int depth) {
+ bits &= ~DepthMASK; // flush previous depth if any
if (depth > 0) {
- bits &= ~DepthMASK; // flush previous depth if any
bits |= (depth & 0xFF) << DepthSHIFT; // encoded on 8 bits
}
}
// ignored
}
+ public StringBuffer printExpression(int indent, StringBuffer output) {
+
+ return receiver.printExpression(0, output).append('.').append(token);
+ }
+
public String toStringExpression() {
return receiver.toString() + "." //$NON-NLS-1$
- + new String(token);
+ + new String(token);
}
- public void traverse(IAbstractSyntaxTreeVisitor visitor, BlockScope scope) {
+ public void traverse(ASTVisitor visitor, BlockScope scope) {
if (visitor.visit(this, scope)) {
receiver.traverse(visitor, scope);
}
visitor.endVisit(this, scope);
}
-}
\ No newline at end of file
+}
git://git.phpeclipse.com / phpeclipse.git / blobdiff