X-Git-Url: http://git.phpeclipse.com diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/FieldDeclaration.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/FieldDeclaration.java index b41df20..7268571 100644 --- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/FieldDeclaration.java +++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/FieldDeclaration.java @@ -1,93 +1,271 @@ +/*********************************************************************************************************************************** + * 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 + **********************************************************************************************************************************/ package net.sourceforge.phpdt.internal.compiler.ast; -import net.sourceforge.phpdt.internal.compiler.parser.Outlineable; -import net.sourceforge.phpdt.internal.ui.PHPUiImages; -import org.eclipse.jface.resource.ImageDescriptor; -import org.eclipse.jface.text.Position; - -import java.util.List; -import java.util.ArrayList; - -/** - * A Field declaration. - * This is a variable declaration for a php class - * In fact it's an array of VariableUsage, since a field could contains - * several var : - * var $toto,$tata; - * @author Matthieu Casanova - */ -public class FieldDeclaration extends Statement implements Outlineable { - - /** The variables. */ - public VariableDeclaration[] vars; - - private Object parent; - private Position position; - - /** - * Create a new field. - * @param vars the array of variables. - * @param sourceStart the starting offset - * @param sourceEnd the ending offset - */ - public FieldDeclaration(final VariableDeclaration[] vars, - final int sourceStart, - final int sourceEnd, - final Object parent) { - super(sourceStart, sourceEnd); - this.vars = vars; - this.parent = parent; - position = new Position(sourceStart, sourceEnd); - } - - /** - * Return the object into String. - * @param tab how many tabs (not used here - * @return a String - */ - public String toString(final int tab) { - final StringBuffer buff = new StringBuffer(tabString(tab)); - buff.append("var ");//$NON-NLS-1$ - for (int i = 0; i < vars.length; i++) { - if (i != 0) { - buff.append(",");//$NON-NLS-1$ - } - buff.append(vars[i].toStringExpression()); - } - return buff.toString(); - } - - /** - * Get the image of a variable. - * @return the image that represents a php variable - */ - public ImageDescriptor getImage() { - return PHPUiImages.DESC_VAR; - } - - public Object getParent() { - return parent; - } - - public Position getPosition() { - return position; - } - - /** - * Get the variables from outside (parameters, globals ...) - */ - public void getOutsideVariable(final List list) { - } - - /** - * get the modified variables. - */ - public void getModifiedVariable(final List list) { - } - - /** - * Get the variables used. - */ - public void getUsedVariable(final List list) { - } -} +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(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 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