/*******************************************************************************
- * 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 {
-
+
public final static char[] ConstantPoolName = "<clinit>".toCharArray(); //$NON-NLS-1$
private FieldBinding assertionSyntheticFieldBinding = null;
+
private FieldBinding classLiteralSyntheticField = null;
public Clinit(CompilationResult compilationResult) {
selector = ConstantPoolName;
}
- public void analyseCode(
- ClassScope classScope,
- InitializationFlowContext staticInitializerFlowContext,
- FlowInfo flowInfo) {
+ public void analyseCode(ClassScope classScope,
+ InitializationFlowContext staticInitializerFlowContext,
+ FlowInfo flowInfo) {
if (ignoreFurtherInvestigation)
return;
try {
- ExceptionHandlingFlowContext clinitContext =
- new ExceptionHandlingFlowContext(
- staticInitializerFlowContext.parent,
- this,
- NoExceptions,
- scope,
- FlowInfo.DeadEnd);
+ ExceptionHandlingFlowContext clinitContext = new ExceptionHandlingFlowContext(
+ staticInitializerFlowContext.parent, this, NoExceptions,
+ scope, 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);
+ 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>
+ 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);
+ staticInitializerFlowContext.checkInitializerExceptions(scope,
+ clinitContext, flowInfo);
} catch (AbortMethod e) {
this.ignoreFurtherInvestigation = true;
}
/**
* 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;
return true;
}
- public void parseStatements(Parser parser, CompilationUnitDeclaration unit) {
- //the clinit is filled by hand ....
+ 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) {
return s;
}
- public void traverse(
- IAbstractSyntaxTreeVisitor visitor,
- ClassScope classScope) {
+ public void traverse(IAbstractSyntaxTreeVisitor visitor,
+ ClassScope classScope) {
visitor.visit(this, classScope);
visitor.endVisit(this, classScope);
}
// 1.4 feature
- public void addSupportForAssertion(FieldBinding assertionSyntheticFieldBinding) {
+ 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);
+ // 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);
}
-}
\ No newline at end of file
+}
git://git.phpeclipse.com / phpeclipse.git / blobdiff