/*******************************************************************************
- * 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.CompilationResult;
import net.sourceforge.phpdt.internal.compiler.IAbstractSyntaxTreeVisitor;
-import net.sourceforge.phpdt.internal.compiler.*;
-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.parser.*;
-import net.sourceforge.phpdt.internal.compiler.problem.*;
+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 {
this,
NoExceptions,
scope,
- FlowInfo.DeadEnd);
+ FlowInfo.DEAD_END);
// check for missing returning path
- needFreeReturn =
- !((flowInfo == FlowInfo.DeadEnd) || flowInfo.isFakeReachable());
+ this.needFreeReturn = flowInfo.isReachable();
// check missing blank final field initializations
flowInfo = flowInfo.mergedWith(staticInitializerFlowContext.initsOnReturn);
/**
* Bytecode generation for a <clinit> method
*
- * @param classScope org.eclipse.jdt.internal.compiler.lookup.ClassScope
- * @param classFile org.eclipse.jdt.internal.compiler.codegen.ClassFile
+ * @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--;
- }
- }
- }
+// 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 org.eclipse.jdt.internal.compiler.lookup.ClassScope
- * @param classFile org.eclipse.jdt.internal.compiler.codegen.ClassFile
+ * @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.
- scope.computeLocalVariablePositions(0, codeStream); // should not be necessary
- MethodScope staticInitializerScope = declaringType.staticInitializerScope;
- staticInitializerScope.computeLocalVariablePositions(0, codeStream);
- // offset by the argument size
-
- // 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 (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);
- }
- }
+// 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 void parseStatements(Parser parser, CompilationUnitDeclaration unit) {
+ 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);
sourceType.addSyntheticField(sourceType, scope);
}
-}
\ No newline at end of file
+}
git://git.phpeclipse.com / phpeclipse.git / blobdiff