-/*******************************************************************************
- * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Common Public License v0.5
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v05.html
+/***********************************************************************************************************************************
+ * 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 v1.0 which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
*
- * Contributors:
- * IBM Corporation - initial API and implementation
- ******************************************************************************/
+ * 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.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.FieldBinding;
+import net.sourceforge.phpdt.internal.compiler.lookup.MethodScope;
+import net.sourceforge.phpdt.internal.compiler.lookup.Scope;
+import net.sourceforge.phpdt.internal.compiler.lookup.SourceTypeBinding;
+import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
public class FieldDeclaration extends AbstractVariableDeclaration {
- public FieldBinding binding;
- boolean hasBeenResolved = false;
-
- //allows to retrieve both the "type" part of the declaration (part1)
- //and also the part that decribe the name and the init and optionally
- //some other dimension ! ....
- //public int[] a, b[] = X, c ;
- //for b that would give for
- // - part1 : public int[]
- // - part2 : b[] = X,
-
- public int endPart1Position;
- public int endPart2Position;
-
- public FieldDeclaration() {
- }
-
- public FieldDeclaration(
- Expression initialization,
- char[] name,
- int sourceStart,
- int sourceEnd) {
-
- this.initialization = initialization;
- this.name = name;
-
- //due to some declaration like
- // int x, y = 3, z , x ;
- //the sourceStart and the sourceEnd is ONLY on the name
- this.sourceStart = sourceStart;
- this.sourceEnd = sourceEnd;
- }
-
- public FlowInfo analyseCode(
- MethodScope initializationScope,
- FlowContext flowContext,
- FlowInfo flowInfo) {
-
- // cannot define static non-constant field inside nested class
- if (binding != null
- && binding.isValidBinding()
- && binding.isStatic()
- && binding.constant == NotAConstant
- && binding.declaringClass.isNestedType()
- && binding.declaringClass.isClass()
- && !binding.declaringClass.isStatic()) {
- initializationScope.problemReporter().unexpectedStaticModifierForField(
- (SourceTypeBinding) binding.declaringClass,
- this);
- }
-
- if (initialization != null) {
- flowInfo =
- initialization
- .analyseCode(initializationScope, flowContext, flowInfo)
- .unconditionalInits();
- flowInfo.markAsDefinitelyAssigned(binding);
- } else {
- flowInfo.markAsDefinitelyNotAssigned(binding);
- // clear the bit in case it was already set (from enclosing info)
- }
- return flowInfo;
- }
-
- /**
- * Code generation for a field declaration:
- * i.e. normal assignment to a field
- *
- * @param currentScope org.eclipse.jdt.internal.compiler.lookup.BlockScope
- * @param codeStream org.eclipse.jdt.internal.compiler.codegen.CodeStream
- */
- public void generateCode(BlockScope currentScope, CodeStream codeStream) {
-
- if ((bits & IsReachableMASK) == 0) {
- return;
- }
- // do not generate initialization code if final and static (constant is then
- // recorded inside the field itself).
- int pc = codeStream.position;
- boolean isStatic;
- if (initialization != null
- && !((isStatic = binding.isStatic()) && binding.constant != NotAConstant)) {
- // non-static field, need receiver
- if (!isStatic)
- codeStream.aload_0();
- // generate initialization value
- initialization.generateCode(currentScope, codeStream, true);
- // store into field
- if (isStatic) {
- codeStream.putstatic(binding);
- } else {
- codeStream.putfield(binding);
- }
- }
- codeStream.recordPositionsFrom(pc, this.sourceStart);
- }
-
- public TypeBinding getTypeBinding(Scope scope) {
-
- return type.getTypeBinding(scope);
- }
-
- public boolean isField() {
-
- return true;
- }
-
- public boolean isStatic() {
-
- if (binding != null)
- return binding.isStatic();
- return (modifiers & AccStatic) != 0;
- }
-
- public String name() {
-
- return String.valueOf(name);
- }
-
- public void resolve(MethodScope initializationScope) {
-
- // the two <constant = Constant.NotAConstant> could be regrouped into
- // a single line but it is clearer to have two lines while the reason of their
- // existence is not at all the same. See comment for the second one.
-
- //--------------------------------------------------------
- if (!this.hasBeenResolved && binding != null && this.binding.isValidBinding()) {
-
- this.hasBeenResolved = true;
-
- if (isTypeUseDeprecated(this.binding.type, initializationScope))
- initializationScope.problemReporter().deprecatedType(this.binding.type, this.type);
-
- this.type.binding = this.binding.type; // update binding for type reference
-
- // the resolution of the initialization hasn't been done
- if (this.initialization == null) {
- this.binding.constant = Constant.NotAConstant;
- } else {
- int previous = initializationScope.fieldDeclarationIndex;
- try {
- initializationScope.fieldDeclarationIndex = this.binding.id;
-
- // break dead-lock cycles by forcing constant to NotAConstant
- this.binding.constant = Constant.NotAConstant;
-
- TypeBinding typeBinding = this.binding.type;
- TypeBinding initializationTypeBinding;
-
- if (initialization instanceof ArrayInitializer) {
-
- if ((initializationTypeBinding = this.initialization.resolveTypeExpecting(initializationScope, typeBinding)) != null) {
- ((ArrayInitializer) this.initialization).binding = (ArrayBinding) initializationTypeBinding;
- this.initialization.implicitWidening(typeBinding, initializationTypeBinding);
- }
- } else if ((initializationTypeBinding = initialization.resolveType(initializationScope)) != null) {
-
- if (this.initialization.isConstantValueOfTypeAssignableToType(initializationTypeBinding, typeBinding)
- || (typeBinding.isBaseType() && BaseTypeBinding.isWidening(typeBinding.id, initializationTypeBinding.id))) {
-
- this.initialization.implicitWidening(typeBinding, initializationTypeBinding);
-
- } else if (initializationScope.areTypesCompatible(initializationTypeBinding, typeBinding)) {
- this.initialization.implicitWidening(typeBinding, initializationTypeBinding);
-
- } else {
- initializationScope.problemReporter().typeMismatchError(initializationTypeBinding, typeBinding, this);
- }
- if (this.binding.isFinal()){ // cast from constant actual type to variable type
- this.binding.constant =
- this.initialization.constant.castTo(
- (this.binding.type.id << 4) + this.initialization.constant.typeID());
- }
- } else {
- this.binding.constant = NotAConstant;
- }
- } finally {
- initializationScope.fieldDeclarationIndex = previous;
- if (this.binding.constant == null)
- this.binding.constant = Constant.NotAConstant;
- }
- }
- }
- }
-
- public void traverse(IAbstractSyntaxTreeVisitor visitor, MethodScope scope) {
-
- if (visitor.visit(this, scope)) {
- type.traverse(visitor, scope);
- if (initialization != null)
- initialization.traverse(visitor, scope);
- }
- visitor.endVisit(this, scope);
- }
+ public FieldBinding binding;
+
+ boolean hasBeenResolved = false;
+
+ //allows to retrieve both the "type" part of the declaration (part1)
+ //and also the part that decribe the name and the init and optionally
+ //some other dimension ! ....
+ //public int[] a, b[] = X, c ;
+ //for b that would give for
+ // - part1 : public int[]
+ // - part2 : b[] = X,
+
+ public int endPart1Position;
+
+ public int endPart2Position;
+
+ public FieldDeclaration() {
+ }
+
+ public FieldDeclaration(char[] name, int sourceStart, int sourceEnd) {
+
+ this.name = name;
+
+ //due to some declaration like
+ // int x, y = 3, z , x ;
+ //the sourceStart and the sourceEnd is ONLY on the name
+ this.sourceStart = sourceStart;
+ this.sourceEnd = sourceEnd;
+ }
+
+ public FieldDeclaration(Expression initialization, char[] name, int sourceStart, int sourceEnd) {
+
+ this.initialization = initialization;
+ this.name = name;
+
+ //due to some declaration like
+ // int x, y = 3, z , x ;
+ //the sourceStart and the sourceEnd is ONLY on the name
+ this.sourceStart = sourceStart;
+ this.sourceEnd = sourceEnd;
+ }
+
+ public FlowInfo analyseCode(MethodScope initializationScope, FlowContext flowContext, FlowInfo flowInfo) {
+
+ if (this.binding != null && this.binding.isPrivate() && !this.binding.isPrivateUsed()) {
+ if (!initializationScope.referenceCompilationUnit().compilationResult.hasSyntaxError()) {
+ initializationScope.problemReporter().unusedPrivateField(this);
+ }
+ }
+ // cannot define static non-constant field inside nested class
+ if (binding != null && binding.isValidBinding() && binding.isStatic() && binding.constant == NotAConstant
+ && binding.declaringClass.isNestedType() && binding.declaringClass.isClass() && !binding.declaringClass.isStatic()) {
+ initializationScope.problemReporter().unexpectedStaticModifierForField((SourceTypeBinding) binding.declaringClass, this);
+ }
+
+ if (initialization != null) {
+ flowInfo = initialization.analyseCode(initializationScope, flowContext, flowInfo).unconditionalInits();
+ flowInfo.markAsDefinitelyAssigned(binding);
+ }
+ return flowInfo;
+ }
+
+ /**
+ * Code generation for a field declaration: standard assignment to a field
+ *
+ * @param currentScope
+ * net.sourceforge.phpdt.internal.compiler.lookup.BlockScope
+ * @param codeStream
+ * net.sourceforge.phpdt.internal.compiler.codegen.CodeStream
+ */
+ // public void generateCode(BlockScope currentScope, CodeStream codeStream) {
+ //
+ // if ((bits & IsReachableMASK) == 0) {
+ // return;
+ // }
+ // // do not generate initialization code if final and static (constant is then
+ // // recorded inside the field itself).
+ // int pc = codeStream.position;
+ // boolean isStatic;
+ // if (initialization != null
+ // && !((isStatic = binding.isStatic()) && binding.constant != NotAConstant)) {
+ // // non-static field, need receiver
+ // if (!isStatic)
+ // codeStream.aload_0();
+ // // generate initialization value
+ // initialization.generateCode(currentScope, codeStream, true);
+ // // store into field
+ // if (isStatic) {
+ // codeStream.putstatic(binding);
+ // } else {
+ // codeStream.putfield(binding);
+ // }
+ // }
+ // codeStream.recordPositionsFrom(pc, this.sourceStart);
+ // }
+ public TypeBinding getTypeBinding(Scope scope) {
+
+ return type.getTypeBinding(scope);
+ }
+
+ public boolean isField() {
+
+ return true;
+ }
+
+ public boolean isStatic() {
+
+ if (binding != null)
+ return binding.isStatic();
+ return (modifiers & AccStatic) != 0;
+ }
+
+ public String name() {
+
+ return String.valueOf(name);
+ }
+
+ public void resolve(MethodScope initializationScope) {
+
+ // the two <constant = Constant.NotAConstant> could be regrouped into
+ // a single line but it is clearer to have two lines while the reason of their
+ // existence is not at all the same. See comment for the second one.
+
+ //--------------------------------------------------------
+ if (!this.hasBeenResolved && binding != null && this.binding.isValidBinding()) {
+
+ this.hasBeenResolved = true;
+
+ if (isTypeUseDeprecated(this.binding.type, initializationScope))
+ initializationScope.problemReporter().deprecatedType(this.binding.type, this.type);
+
+ this.type.resolvedType = this.binding.type; // update binding for type reference
+
+ // the resolution of the initialization hasn't been done
+ if (this.initialization == null) {
+ this.binding.constant = Constant.NotAConstant;
+ } else {
+ int previous = initializationScope.fieldDeclarationIndex;
+ try {
+ initializationScope.fieldDeclarationIndex = this.binding.id;
+
+ // break dead-lock cycles by forcing constant to NotAConstant
+ this.binding.constant = Constant.NotAConstant;
+
+ TypeBinding typeBinding = this.binding.type;
+ TypeBinding initializationTypeBinding;
+
+ if (initialization instanceof ArrayInitializer) {
+
+ if ((initializationTypeBinding = this.initialization.resolveTypeExpecting(initializationScope, typeBinding)) != null) {
+ ((ArrayInitializer) this.initialization).binding = (ArrayBinding) initializationTypeBinding;
+ this.initialization.implicitWidening(typeBinding, initializationTypeBinding);
+ }
+ } else if ((initializationTypeBinding = initialization.resolveType(initializationScope)) != null) {
+
+ if (this.initialization.isConstantValueOfTypeAssignableToType(initializationTypeBinding, typeBinding)
+ || (typeBinding.isBaseType() && BaseTypeBinding.isWidening(typeBinding.id, initializationTypeBinding.id))) {
+
+ this.initialization.implicitWidening(typeBinding, initializationTypeBinding);
+
+ } else if (initializationTypeBinding.isCompatibleWith(typeBinding)) {
+ this.initialization.implicitWidening(typeBinding, initializationTypeBinding);
+
+ } else {
+ initializationScope.problemReporter().typeMismatchError(initializationTypeBinding, typeBinding, this);
+ }
+ if (this.binding.isFinal()) { // cast from constant actual type to variable type
+ this.binding.constant = this.initialization.constant.castTo((this.binding.type.id << 4)
+ + this.initialization.constant.typeID());
+ }
+ } else {
+ this.binding.constant = NotAConstant;
+ }
+ } finally {
+ initializationScope.fieldDeclarationIndex = previous;
+ if (this.binding.constant == null)
+ this.binding.constant = Constant.NotAConstant;
+ }
+ }
+ }
+ }
+
+ public void traverse(ASTVisitor visitor, MethodScope scope) {
+
+ if (visitor.visit(this, scope)) {
+ type.traverse(visitor, scope);
+ if (initialization != null)
+ initialization.traverse(visitor, scope);
+ }
+ visitor.endVisit(this, scope);
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see java.lang.Object#equals(java.lang.Object)
+ */
+ public boolean equals(Object obj) {
+ if (obj instanceof FieldDeclaration) {
+ char[] objName = ((FieldDeclaration) obj).name;
+ if (name.length != objName.length) {
+ return false;
+ }
+ for (int i = 0; i < objName.length; i++) {
+ if (name[i] != objName[i]) {
+ return false;
+ }
+ }
+ return true;
+ }
+ return super.equals(obj);
+ }
}
\ No newline at end of file
git://git.phpeclipse.com / phpeclipse.git / blobdiff