/*******************************************************************************
- * 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.Constant;
import net.sourceforge.phpdt.internal.compiler.lookup.ArrayBinding;
import net.sourceforge.phpdt.internal.compiler.lookup.BaseTypeBinding;
import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
import net.sourceforge.phpdt.internal.compiler.lookup.LocalVariableBinding;
import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
+
public class LocalDeclaration extends AbstractVariableDeclaration {
public LocalVariableBinding binding;
this.sourceEnd = sourceEnd;
if (initialization != null) {
this.declarationSourceEnd = initialization.sourceEnd;
+ this.declarationEnd = initialization.sourceEnd;
} else {
- this.declarationSourceEnd = sourceEnd;
+ this.declarationEnd = sourceEnd;
}
- this.declarationEnd = this.declarationSourceEnd;
}
public FlowInfo analyseCode(
FlowInfo flowInfo) {
// record variable initialization if any
- if (!flowInfo.isDeadEnd() && !flowInfo.isFakeReachable()) {
+ if (flowInfo.isReachable()) {
bits |= IsLocalDeclarationReachableMASK; // only set if actually reached
}
- if (initialization == null)
+ if (initialization == null)
return flowInfo;
+
flowInfo =
initialization
.analyseCode(currentScope, flowContext, flowInfo)
.unconditionalInits();
+
+ // final int i = (i = 0);
+ // no need to complain since (i = 0) part will get the blame
+ //if (binding.isFinal() && flowInfo.isPotentiallyAssigned(binding)) {
+ // currentScope.problemReporter().duplicateInitializationOfFinalLocal(binding, this);
+ //}
+
flowInfo.markAsDefinitelyAssigned(binding);
return flowInfo;
}
public void checkModifiers() {
- //only potential valid modifier is <<final>>
- if (((modifiers & AccJustFlag) | AccFinal) != AccFinal)
+ //only potential valid modifier is <<final>>
+ if (((modifiers & AccJustFlag) & ~AccFinal) != 0)
//AccModifierProblem -> other (non-visibility problem)
//AccAlternateModifierProblem -> duplicate modifier
//AccModifierProblem | AccAlternateModifierProblem -> visibility problem"
- // -x-1 returns the bitInvert
- modifiers =
- (modifiers & (-AccAlternateModifierProblem - 1)) | AccModifierProblem;
+ modifiers = (modifiers & ~AccAlternateModifierProblem) | AccModifierProblem;
}
/**
* Code generation for a local declaration:
- * i.e. normal assignment to a local variable + unused variable handling
+ * normal assignment to a local variable + unused variable handling
*/
- public void generateCode(BlockScope currentScope, CodeStream codeStream) {
-
- if ((bits & IsReachableMASK) == 0) {
- return;
- }
- int pc = codeStream.position;
- Constant inlinedValue;
- // something to initialize?
- if (binding.resolvedPosition != -1) {
- codeStream.addVisibleLocalVariable(binding);
- }
- if (initialization != null) {
- // initialize to constant value?
- if ((inlinedValue = initialization.constant) != NotAConstant) {
- // forget initializing unused or final locals set to constant value (final ones are inlined)
- if (binding.resolvedPosition != -1) { // may need to preserve variable
- int initPC = codeStream.position;
- codeStream.generateConstant(inlinedValue, initialization.implicitConversion);
- codeStream.recordPositionsFrom(initPC, initialization.sourceStart);
- codeStream.store(binding, false);
- binding.recordInitializationStartPC(codeStream.position);
- // codeStream.lastInitStateIndexWhenRemovingInits = -2; // reinitialize remove index
- // codeStream.lastInitStateIndexWhenAddingInits = -2; // reinitialize add index
- }
- } else { // initializing to non-constant value
- initialization.generateCode(currentScope, codeStream, true);
- // if binding unused generate then discard the value
- if (binding.resolvedPosition != -1) {
- codeStream.store(binding, false);
- if (binding.initializationCount == 0) {
- /* Variable may have been initialized during the code initializing it
- e.g. int i = (i = 1);
- */
- binding.recordInitializationStartPC(codeStream.position);
- // codeStream.lastInitStateIndexWhenRemovingInits = -2; // reinitialize remove index
- // codeStream.lastInitStateIndexWhenAddingInits = -2; // reinitialize add index
- }
- } else {
- if ((binding.type == LongBinding) || (binding.type == DoubleBinding)) {
- codeStream.pop2();
- } else {
- codeStream.pop();
- }
- }
- }
- }
- codeStream.recordPositionsFrom(pc, this.sourceStart);
- }
+// public void generateCode(BlockScope currentScope, CodeStream codeStream) {
+//
+// // even if not reachable, variable must be added to visible if allocated (28298)
+// if (binding.resolvedPosition != -1) {
+// codeStream.addVisibleLocalVariable(binding);
+// }
+// if ((bits & IsReachableMASK) == 0) {
+// return;
+// }
+// int pc = codeStream.position;
+// Constant inlinedValue;
+//
+// // something to initialize?
+// if (initialization != null) {
+// // initialize to constant value?
+// if ((inlinedValue = initialization.constant) != NotAConstant) {
+// // forget initializing unused or final locals set to constant value (final ones are inlined)
+// if (binding.resolvedPosition != -1) { // may need to preserve variable
+// int initPC = codeStream.position;
+// codeStream.generateConstant(inlinedValue, initialization.implicitConversion);
+// codeStream.recordPositionsFrom(initPC, initialization.sourceStart);
+// codeStream.store(binding, false);
+// binding.recordInitializationStartPC(codeStream.position);
+// // codeStream.lastInitStateIndexWhenRemovingInits = -2; // reinitialize remove index
+// // codeStream.lastInitStateIndexWhenAddingInits = -2; // reinitialize add index
+// }
+// } else { // initializing to non-constant value
+// initialization.generateCode(currentScope, codeStream, true);
+// // if binding unused generate then discard the value
+// if (binding.resolvedPosition != -1) {
+// // 26903, need extra cast to store null in array local var
+// if (binding.type.isArrayType()
+// && (initialization.resolvedType == NullBinding // arrayLoc = null
+// || ((initialization instanceof CastExpression) // arrayLoc = (type[])null
+// && (((CastExpression)initialization).innermostCastedExpression().resolvedType == NullBinding)))){
+// codeStream.checkcast(binding.type);
+// }
+// codeStream.store(binding, false);
+// if (binding.initializationCount == 0) {
+// /* Variable may have been initialized during the code initializing it
+// e.g. int i = (i = 1);
+// */
+// binding.recordInitializationStartPC(codeStream.position);
+// // codeStream.lastInitStateIndexWhenRemovingInits = -2; // reinitialize remove index
+// // codeStream.lastInitStateIndexWhenAddingInits = -2; // reinitialize add index
+// }
+// } else {
+// if ((binding.type == LongBinding) || (binding.type == DoubleBinding)) {
+// codeStream.pop2();
+// } else {
+// codeStream.pop();
+// }
+// }
+// }
+// }
+// codeStream.recordPositionsFrom(pc, this.sourceStart);
+// }
public String name() {
// the name already exists... may carry on with the first binding...
scope.problemReporter().redefineLocal(this);
} else {
+ if ((modifiers & AccFinal)!= 0 && this.initialization == null) {
+ modifiers |= AccBlankFinal;
+ }
binding = new LocalVariableBinding(this, tb, modifiers, false);
scope.addLocalVariable(binding);
binding.constant = NotAConstant;
if (initTb != null) {
if (initialization.isConstantValueOfTypeAssignableToType(initTb, tb)
|| (tb.isBaseType() && BaseTypeBinding.isWidening(tb.id, initTb.id))
- || BlockScope.areTypesCompatible(initTb, tb))
+ || initTb.isCompatibleWith(tb))
initialization.implicitWidening(tb, initTb);
else
scope.problemReporter().typeMismatchError(initTb, tb, this);
}
}
- public void traverse(IAbstractSyntaxTreeVisitor visitor, BlockScope scope) {
+ public void traverse(ASTVisitor visitor, BlockScope scope) {
if (visitor.visit(this, scope)) {
type.traverse(visitor, scope);
}
visitor.endVisit(this, scope);
}
-}
\ No newline at end of file
+}
git://git.phpeclipse.com / phpeclipse.git / blobdiff