+++ /dev/null
-/*******************************************************************************
- * 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.phpeclipse.internal.compiler.ast;
-
-import net.sourceforge.phpdt.internal.compiler.CompilationResult;
-import net.sourceforge.phpdt.internal.compiler.IAbstractSyntaxTreeVisitor;
-import net.sourceforge.phpdt.internal.compiler.flow.ExceptionHandlingFlowContext;
-import net.sourceforge.phpdt.internal.compiler.flow.FlowInfo;
-import net.sourceforge.phpdt.internal.compiler.flow.InitializationFlowContext;
-import net.sourceforge.phpdt.internal.compiler.lookup.ClassScope;
-import net.sourceforge.phpdt.internal.compiler.lookup.FieldBinding;
-import net.sourceforge.phpdt.internal.compiler.lookup.MethodScope;
-import net.sourceforge.phpdt.internal.compiler.lookup.SourceTypeBinding;
-import net.sourceforge.phpdt.internal.compiler.parser.UnitParser;
-import net.sourceforge.phpdt.internal.compiler.problem.AbortMethod;
-
-public class Clinit extends AbstractMethodDeclaration {
-
- public final static char[] ConstantPoolName = "<clinit>".toCharArray(); //$NON-NLS-1$
-
- private FieldBinding assertionSyntheticFieldBinding = null;
- private FieldBinding classLiteralSyntheticField = null;
-
- public Clinit(CompilationResult compilationResult) {
- super(compilationResult);
- modifiers = 0;
- selector = ConstantPoolName;
- }
-
- public void analyseCode(
- ClassScope classScope,
- InitializationFlowContext staticInitializerFlowContext,
- FlowInfo flowInfo) {
-
- if (ignoreFurtherInvestigation)
- return;
- try {
- ExceptionHandlingFlowContext clinitContext =
- new ExceptionHandlingFlowContext(
- staticInitializerFlowContext.parent,
- this,
- NoExceptions,
- scope,
- FlowInfo.DEAD_END);
-
- // check for missing returning path
- this.needFreeReturn = flowInfo.isReachable();
-
- // check missing blank final field initializations
- flowInfo = flowInfo.mergedWith(staticInitializerFlowContext.initsOnReturn);
- FieldBinding[] fields = scope.enclosingSourceType().fields();
- for (int i = 0, count = fields.length; i < count; i++) {
- FieldBinding field;
- if ((field = fields[i]).isStatic()
- && field.isFinal()
- && (!flowInfo.isDefinitelyAssigned(fields[i]))) {
- scope.problemReporter().uninitializedBlankFinalField(
- field,
- scope.referenceType().declarationOf(field));
- // can complain against the field decl, since only one <clinit>
- }
- }
- // check static initializers thrown exceptions
- staticInitializerFlowContext.checkInitializerExceptions(
- scope,
- clinitContext,
- flowInfo);
- } catch (AbortMethod e) {
- this.ignoreFurtherInvestigation = true;
- }
- }
-
- /**
- * Bytecode generation for a <clinit> method
- *
- * @param classScope net.sourceforge.phpdt.internal.compiler.lookup.ClassScope
- * @param classFile net.sourceforge.phpdt.internal.compiler.codegen.ClassFile
- */
-// public void generateCode(ClassScope classScope, ClassFile classFile) {
-//
-// int clinitOffset = 0;
-// if (ignoreFurtherInvestigation) {
-// // should never have to add any <clinit> problem method
-// return;
-// }
-// try {
-// clinitOffset = classFile.contentsOffset;
-// this.generateCode(classScope, classFile, clinitOffset);
-// } catch (AbortMethod e) {
-// // should never occur
-// // the clinit referenceContext is the type declaration
-// // All clinit problems will be reported against the type: AbortType instead of AbortMethod
-// // reset the contentsOffset to the value before generating the clinit code
-// // decrement the number of method info as well.
-// // This is done in the addProblemMethod and addProblemConstructor for other
-// // cases.
-// if (e.compilationResult == CodeStream.RESTART_IN_WIDE_MODE) {
-// // a branch target required a goto_w, restart code gen in wide mode.
-// try {
-// if (statements != null) {
-// for (int i = 0, max = statements.length; i < max; i++)
-// statements[i].resetStateForCodeGeneration();
-// }
-// classFile.contentsOffset = clinitOffset;
-// classFile.methodCount--;
-// classFile.codeStream.wideMode = true; // request wide mode
-// this.generateCode(classScope, classFile, clinitOffset);
-// // restart method generation
-// } catch (AbortMethod e2) {
-// classFile.contentsOffset = clinitOffset;
-// classFile.methodCount--;
-// }
-// } else {
-// // produce a problem method accounting for this fatal error
-// classFile.contentsOffset = clinitOffset;
-// classFile.methodCount--;
-// }
-// }
-// }
-
- /**
- * Bytecode generation for a <clinit> method
- *
- * @param classScope net.sourceforge.phpdt.internal.compiler.lookup.ClassScope
- * @param classFile net.sourceforge.phpdt.internal.compiler.codegen.ClassFile
- */
-// private void generateCode(
-// ClassScope classScope,
-// ClassFile classFile,
-// int clinitOffset) {
-//
-// ConstantPool constantPool = classFile.constantPool;
-// int constantPoolOffset = constantPool.currentOffset;
-// int constantPoolIndex = constantPool.currentIndex;
-// classFile.generateMethodInfoHeaderForClinit();
-// int codeAttributeOffset = classFile.contentsOffset;
-// classFile.generateCodeAttributeHeader();
-// CodeStream codeStream = classFile.codeStream;
-// this.resolve(classScope);
-//
-// codeStream.reset(this, classFile);
-// TypeDeclaration declaringType = classScope.referenceContext;
-//
-// // initialize local positions - including initializer scope.
-// MethodScope staticInitializerScope = declaringType.staticInitializerScope;
-// staticInitializerScope.computeLocalVariablePositions(0, codeStream);
-//
-// // 1.4 feature
-// // This has to be done before any other initialization
-// if (this.assertionSyntheticFieldBinding != null) {
-// // generate code related to the activation of assertion for this class
-// codeStream.generateClassLiteralAccessForType(
-// classScope.enclosingSourceType(),
-// classLiteralSyntheticField);
-// codeStream.invokeJavaLangClassDesiredAssertionStatus();
-// Label falseLabel = new Label(codeStream);
-// codeStream.ifne(falseLabel);
-// codeStream.iconst_1();
-// Label jumpLabel = new Label(codeStream);
-// codeStream.goto_(jumpLabel);
-// falseLabel.place();
-// codeStream.iconst_0();
-// jumpLabel.place();
-// codeStream.putstatic(this.assertionSyntheticFieldBinding);
-// }
-// // generate initializers
-// if (declaringType.fields != null) {
-// for (int i = 0, max = declaringType.fields.length; i < max; i++) {
-// FieldDeclaration fieldDecl;
-// if ((fieldDecl = declaringType.fields[i]).isStatic()) {
-// fieldDecl.generateCode(staticInitializerScope, codeStream);
-// }
-// }
-// }
-// if (codeStream.position == 0) {
-// // do not need to output a Clinit if no bytecodes
-// // so we reset the offset inside the byte array contents.
-// classFile.contentsOffset = clinitOffset;
-// // like we don't addd a method we need to undo the increment on the method count
-// classFile.methodCount--;
-// // reset the constant pool to its state before the clinit
-// constantPool.resetForClinit(constantPoolIndex, constantPoolOffset);
-// } else {
-// if (this.needFreeReturn) {
-// int oldPosition = codeStream.position;
-// codeStream.return_();
-// codeStream.updateLocalVariablesAttribute(oldPosition);
-// }
-// // Record the end of the clinit: point to the declaration of the class
-// codeStream.recordPositionsFrom(0, declaringType.sourceStart);
-// classFile.completeCodeAttributeForClinit(codeAttributeOffset);
-// }
-// }
-
- public boolean isClinit() {
-
- return true;
- }
-
- public boolean isInitializationMethod() {
-
- return true;
- }
-
- public boolean isStatic() {
-
- return true;
- }
-
- public void parseStatements(UnitParser parser, CompilationUnitDeclaration unit) {
- //the clinit is filled by hand ....
- }
- public StringBuffer print(int tab, StringBuffer output) {
-
- printIndent(tab, output).append("<clinit>()"); //$NON-NLS-1$
- printBody(tab + 1, output);
- return output;
- }
- public void resolve(ClassScope scope) {
-
- this.scope = new MethodScope(scope, scope.referenceContext, true);
- }
-
- public String toString(int tab) {
-
- String s = ""; //$NON-NLS-1$
- s = s + tabString(tab);
- s = s + "<clinit>()"; //$NON-NLS-1$
- s = s + toStringStatements(tab + 1);
- return s;
- }
-
- public void traverse(
- IAbstractSyntaxTreeVisitor visitor,
- ClassScope classScope) {
-
- visitor.visit(this, classScope);
- visitor.endVisit(this, classScope);
- }
-
- // 1.4 feature
- public void addSupportForAssertion(FieldBinding assertionSyntheticFieldBinding) {
-
- this.assertionSyntheticFieldBinding = assertionSyntheticFieldBinding;
-
- // we need to add the field right now, because the field infos are generated before the methods
- SourceTypeBinding sourceType =
- this.scope.outerMostMethodScope().enclosingSourceType();
- this.classLiteralSyntheticField =
- sourceType.addSyntheticField(sourceType, scope);
- }
-
-}
git://git.phpeclipse.com / phpeclipse.git / blobdiff