Examples with TryStatement org.eclipse.jdt.core.dom.TryStatement used on opensource projects

Example 21 with TryStatement

use of org.eclipse.jdt.core.dom.TryStatement in project AutoRefactor by JnRouvignac.

the class InlineCodeRatherThanPeremptoryConditionCleanUp method removeForwardCode.

private void removeForwardCode(final Statement statement, final Statement unconditionnalStatement) {
    if (ASTNodes.canHaveSiblings(statement)) {
        TextEditGroup group = new TextEditGroup(MultiFixMessages.InlineCodeRatherThanPeremptoryConditionCleanUp_description);
        ASTRewrite rewrite = cuRewrite.getASTRewrite();
        rewrite.remove(ASTNodes.getNextSiblings(statement), group);
        removeForwardCode((Block) statement.getParent(), unconditionnalStatement);
    } else if (statement.getParent() instanceof TryStatement) {
        removeForwardCode((TryStatement) statement.getParent(), unconditionnalStatement);
    }
}

Example 22 with TryStatement

use of org.eclipse.jdt.core.dom.TryStatement in project AutoRefactor by JnRouvignac.

the class ASTNodes method fallsThrough.

/**
 * Return true if the statement falls through.
 *
 * @param statement the statement
 * @return true if the statement falls through.
 */
public static boolean fallsThrough(final Statement statement) {
    List<Statement> statements = asList(statement);
    if (statements.isEmpty()) {
        return false;
    }
    Statement lastStatement = statements.get(statements.size() - 1);
    switch(lastStatement.getNodeType()) {
        case ASTNode.RETURN_STATEMENT:
        case ASTNode.THROW_STATEMENT:
        case ASTNode.BREAK_STATEMENT:
        case ASTNode.CONTINUE_STATEMENT:
            return true;
        case ASTNode.BLOCK:
            Block block = (Block) lastStatement;
            return fallsThrough(block);
        case ASTNode.IF_STATEMENT:
            IfStatement ifStatement = (IfStatement) lastStatement;
            Statement thenStatement = ifStatement.getThenStatement();
            Statement elseStatement = ifStatement.getElseStatement();
            return fallsThrough(thenStatement) && fallsThrough(elseStatement);
        case ASTNode.TRY_STATEMENT:
            TryStatement tryStatement = (TryStatement) lastStatement;
            if (!fallsThrough(tryStatement.getBody()) || tryStatement.getFinally() != null && !fallsThrough(tryStatement.getFinally())) {
                return false;
            }
            if (tryStatement.catchClauses() != null) {
                for (Object catchClause : tryStatement.catchClauses()) {
                    if (!fallsThrough(((CatchClause) catchClause).getBody())) {
                        return false;
                    }
                }
            }
            return true;
        default:
            return false;
    }
}

Example 23 with TryStatement

use of org.eclipse.jdt.core.dom.TryStatement in project evosuite by EvoSuite.

the class CodeGenerator method createTryStatementForPostProcessing.

/*
	 * try
	 * {
	 *    var0.doSth();
	 * }
	 * catch(Throwable t)
	 * {
	 *    org.uni.saarland.sw.prototype.capture.PostProcessor.captureException(<logRecNo>);
	 * }
	 */
@SuppressWarnings("unchecked")
private TryStatement createTryStatementForPostProcessing(final AST ast, final Statement stmt, final int logRecNo) {
    final TryStatement tryStmt = this.createTryStmtWithEmptyCatch(ast, stmt);
    final CatchClause cc = (CatchClause) tryStmt.catchClauses().get(0);
    final MethodInvocation m = ast.newMethodInvocation();
    m.setExpression(ast.newName(new String[] { "de", "unisb", "cs", "st", "testcarver", "capture", "PostProcessor" }));
    m.setName(ast.newSimpleName("captureException"));
    m.arguments().add(ast.newNumberLiteral(String.valueOf(logRecNo)));
    cc.getBody().statements().add(ast.newExpressionStatement(m));
    MethodInvocation m2 = ast.newMethodInvocation();
    m2.setExpression(ast.newSimpleName("t"));
    m2.setName(ast.newSimpleName("printStackTrace"));
    cc.getBody().statements().add(ast.newExpressionStatement(m2));
    return tryStmt;
}

Example 24 with TryStatement

use of org.eclipse.jdt.core.dom.TryStatement in project evosuite by EvoSuite.

the class CodeGenerator method createTryStmtWithEmptyCatch.

/*
	 * Needed to preserve program flow: 
	 * 
	 * try
	 * {
	 *    var0.doSth();
	 * }
	 * catch(Throwable t) {}
	 */
@SuppressWarnings("unchecked")
private TryStatement createTryStmtWithEmptyCatch(final AST ast, Statement stmt) {
    final TryStatement tryStmt = ast.newTryStatement();
    tryStmt.getBody().statements().add(stmt);
    final CatchClause cc = ast.newCatchClause();
    SingleVariableDeclaration excDecl = ast.newSingleVariableDeclaration();
    excDecl.setType(ast.newSimpleType(ast.newSimpleName("Throwable")));
    excDecl.setName(ast.newSimpleName("t"));
    cc.setException(excDecl);
    tryStmt.catchClauses().add(cc);
    return tryStmt;
}

Example 25 with TryStatement

use of org.eclipse.jdt.core.dom.TryStatement in project evosuite by EvoSuite.

the class ResolutionMarkerTryBlock method run.

@Override
public void run(IMarker marker) {
    // TODO Auto-generated method stub
    IResource res = marker.getResource();
    try {
        String markerMessage = (String) marker.getAttribute(IMarker.MESSAGE);
        String exception = markerMessage.split(" ")[0];
        String[] exceptionPackageArray = exception.split("\\.");
        String exceptionPackage = "";
        for (int i = 0; i < exceptionPackageArray.length - 1; i++) {
            exceptionPackage += exceptionPackageArray[i] + ".";
        }
        exception = exception.substring(exceptionPackage.length());
        System.out.println("Package: " + exceptionPackage + ", Exception: " + exception);
        ICompilationUnit icomp = CompilationUnitManager.getICompilationUnit(res);
        CompilationUnit compunit = CompilationUnitManager.getCompilationUnit(res);
        int position = marker.getAttribute(IMarker.CHAR_START, 0) + 1;
        int line = marker.getAttribute(IMarker.LINE_NUMBER, 0);
        if (position == 1) {
            position = compunit.getPosition(line, 0);
        }
        AST ast = compunit.getAST();
        ASTRewrite rewriter = ASTRewrite.create(ast);
        IJavaElement element = icomp.getElementAt(position);
        IJavaElement method = getMethod(element);
        // TypeDeclaration td = (TypeDeclaration) compunit.types().get(0);
        TypeDeclaration td = (TypeDeclaration) compunit.types().get(0);
        MethodDeclaration md = td.getMethods()[0];
        int counter = 1;
        while (!md.getName().getFullyQualifiedName().equals(method.getElementName()) && counter < td.getMethods().length) {
            md = td.getMethods()[counter];
            System.out.println(md.getName().getFullyQualifiedName() + " " + method.getElementName());
            counter++;
        }
        Block block = md.getBody();
        ListRewrite lr = rewriter.getListRewrite(block, Block.STATEMENTS_PROPERTY);
        ImportDeclaration id = ast.newImportDeclaration();
        id.setName(ast.newName(exceptionPackage + exception));
        ListRewrite lrClass = rewriter.getListRewrite(compunit, CompilationUnit.TYPES_PROPERTY);
        lrClass.insertAt(id, 0, null);
        ASTNode currentNode = null;
        List<ASTNode> list = new ArrayList<ASTNode>();
        for (Object o : lr.getOriginalList()) {
            if (o instanceof ASTNode) {
                list.add((ASTNode) o);
            }
        }
        for (int i = 0; i < list.size(); i++) {
            ASTNode node = list.get(i);
            int nodeLine = compunit.getLineNumber(node.getStartPosition());
            System.out.println(line + " " + nodeLine);
            if (line == nodeLine) {
                currentNode = node;
                break;
            }
            List childrenList = node.structuralPropertiesForType();
            for (int j = 0; j < childrenList.size(); j++) {
                StructuralPropertyDescriptor curr = (StructuralPropertyDescriptor) childrenList.get(j);
                Object child = node.getStructuralProperty(curr);
                if (child instanceof List) {
                    for (Object ob : (List) child) {
                        if (ob instanceof ASTNode) {
                            list.add((ASTNode) ob);
                        }
                    }
                } else if (child instanceof ASTNode) {
                    list.add((ASTNode) child);
                }
            }
        }
        TryStatement ts = ast.newTryStatement();
        Statement emptyStatement = (Statement) rewriter.createStringPlaceholder("\n", ASTNode.EMPTY_STATEMENT);
        Statement emptyStatement2 = (Statement) rewriter.createStringPlaceholder("\n\t", ASTNode.EMPTY_STATEMENT);
        Block b2 = ast.newBlock();
        b2.statements().add(0, ASTNode.copySubtree(b2.getAST(), currentNode));
        b2.statements().add(1, emptyStatement);
        b2.statements().add(0, emptyStatement2);
        ts.setBody(b2);
        CatchClause cc = ast.newCatchClause();
        SingleVariableDeclaration svd = ast.newSingleVariableDeclaration();
        svd.setName(ast.newSimpleName("e"));
        Type type = ast.newSimpleType(ast.newName(exception));
        svd.setType(type);
        cc.setException(svd);
        Block b3 = ast.newBlock();
        Statement printStatement = (Statement) rewriter.createStringPlaceholder("e.printStackTrace();", ASTNode.EMPTY_STATEMENT);
        b3.statements().add(0, printStatement);
        cc.setBody(b3);
        ListRewrite parentList = rewriter.getListRewrite(currentNode.getParent(), Block.STATEMENTS_PROPERTY);
        parentList.replace(currentNode, ts, null);
        parentList.insertAfter(cc, ts, null);
        ITextFileBufferManager bm = FileBuffers.getTextFileBufferManager();
        IPath path = compunit.getJavaElement().getPath();
        try {
            bm.connect(path, null, null);
            ITextFileBuffer textFileBuffer = bm.getTextFileBuffer(path, null);
            IDocument document = textFileBuffer.getDocument();
            TextEdit edits = rewriter.rewriteAST(document, null);
            edits.apply(document);
            textFileBuffer.commit(null, false);
        } catch (CoreException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (MalformedTreeException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (BadLocationException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            try {
                bm.disconnect(path, null, null);
            } catch (CoreException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        // (4)
        }
        marker.delete();
    } catch (JavaModelException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (CoreException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    } catch (IOException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }
}