Refactored packagename to net.sourceforge.phpdt.internal.compiler.ast

[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / internal / compiler / ast / ThrowStatement.java

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/ThrowStatement.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/ThrowStatement.java
new file mode 100644 (file)
index 0000000..b6c5e29
--- /dev/null
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/ThrowStatement.java
@@ -0,0 +1,82 @@
+/*******************************************************************************
+ * 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.ASTVisitor;
+import net.sourceforge.phpdt.internal.compiler.flow.FlowContext;
+import net.sourceforge.phpdt.internal.compiler.flow.FlowInfo;
+import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
+import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
+
+public class ThrowStatement extends Statement {
+       public Expression exception;
+       public TypeBinding exceptionType;
+
+       public ThrowStatement(Expression exception, int startPosition) {
+               this.exception = exception;
+               this.sourceStart = startPosition;
+               this.sourceEnd = exception.sourceEnd;
+       }
+
+       public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo) {
+
+               exception.analyseCode(currentScope, flowContext, flowInfo);
+               // need to check that exception thrown is actually caught somewhere
+               flowContext.checkExceptionHandlers(exceptionType, this, flowInfo, currentScope);
+               return FlowInfo.DEAD_END;
+       }
+
+       /**
+        * Throw code generation
+        *
+        * @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;
+//             int pc = codeStream.position;
+//             exception.generateCode(currentScope, codeStream, true);
+//             codeStream.athrow();
+//             codeStream.recordPositionsFrom(pc, this.sourceStart);
+//     }
+
+       public void resolve(BlockScope scope) {
+               
+               exceptionType = exception.resolveTypeExpecting(scope, scope.getJavaLangThrowable());
+               
+//             if (exceptionType == NullBinding
+//                             && scope.environment().options.complianceLevel <= CompilerOptions.JDK1_3){
+//                     // if compliant with 1.4, this problem will not be reported
+//                     scope.problemReporter().cannotThrowNull(this);
+//             }
+               exception.implicitWidening(exceptionType, exceptionType);
+       }
+       public StringBuffer printStatement(int indent, StringBuffer output) {
+
+               printIndent(indent, output).append("throw "); //$NON-NLS-1$
+               exception.printExpression(0, output);
+               return output.append(';');
+       }
+       public String toString(int tab) {
+               String s = tabString(tab);
+               s = s + "throw "; //$NON-NLS-1$
+               s = s + exception.toStringExpression();
+               return s;
+       }
+
+       public void traverse(ASTVisitor visitor, BlockScope blockScope) {
+               if (visitor.visit(this, blockScope))
+                       exception.traverse(visitor, blockScope);
+               visitor.endVisit(this, blockScope);
+       }
+}