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

Example 41 with Block

use of org.eclipse.jdt.core.dom.Block in project che by eclipse.

the class ExtractMethodAnalyzer method computeLastStatementSelected.

private void computeLastStatementSelected() {
    ASTNode[] nodes = getSelectedNodes();
    if (nodes.length == 0) {
        fIsLastStatementSelected = false;
    } else {
        Block body = null;
        LambdaExpression enclosingLambdaExpr = ASTResolving.findEnclosingLambdaExpression(getFirstSelectedNode());
        if (enclosingLambdaExpr != null) {
            ASTNode lambdaBody = enclosingLambdaExpr.getBody();
            if (lambdaBody instanceof Block) {
                body = (Block) lambdaBody;
            } else {
                fIsLastStatementSelected = true;
                return;
            }
        } else {
            if (fEnclosingBodyDeclaration instanceof MethodDeclaration) {
                body = ((MethodDeclaration) fEnclosingBodyDeclaration).getBody();
            } else if (fEnclosingBodyDeclaration instanceof Initializer) {
                body = ((Initializer) fEnclosingBodyDeclaration).getBody();
            }
        }
        if (body != null) {
            List<Statement> statements = body.statements();
            if (statements.size() > 0) {
                fIsLastStatementSelected = nodes[nodes.length - 1] == statements.get(statements.size() - 1);
            } else {
                fIsLastStatementSelected = true;
            }
        }
    }
}

Example 42 with Block

use of org.eclipse.jdt.core.dom.Block in project che by eclipse.

the class ExtractMethodAnalyzer method canHandleBranches.

private String canHandleBranches() {
    if (fReturnValue != null)
        return RefactoringCoreMessages.ExtractMethodAnalyzer_branch_mismatch;
    ASTNode[] selectedNodes = getSelectedNodes();
    final ASTNode lastSelectedNode = selectedNodes[selectedNodes.length - 1];
    Statement body = getParentLoopBody(lastSelectedNode.getParent());
    if (!(body instanceof Block))
        return RefactoringCoreMessages.ExtractMethodAnalyzer_branch_mismatch;
    if (body != lastSelectedNode) {
        Block block = (Block) body;
        List<Statement> statements = block.statements();
        ASTNode lastStatementInLoop = statements.get(statements.size() - 1);
        if (lastSelectedNode != lastStatementInLoop)
            return RefactoringCoreMessages.ExtractMethodAnalyzer_branch_mismatch;
    }
    final String[] continueMatchesLoopProblem = { null };
    for (int i = 0; i < selectedNodes.length; i++) {
        final ASTNode astNode = selectedNodes[i];
        astNode.accept(new ASTVisitor() {

            ArrayList<String> fLocalLoopLabels = new ArrayList<String>();

            @Override
            public boolean visit(BreakStatement node) {
                SimpleName label = node.getLabel();
                if (label != null && !fLocalLoopLabels.contains(label.getIdentifier())) {
                    continueMatchesLoopProblem[0] = Messages.format(RefactoringCoreMessages.ExtractMethodAnalyzer_branch_break_mismatch, //$NON-NLS-1$
                    new Object[] { ("break " + label.getIdentifier()) });
                }
                return false;
            }

            @Override
            public boolean visit(LabeledStatement node) {
                SimpleName label = node.getLabel();
                if (label != null)
                    fLocalLoopLabels.add(label.getIdentifier());
                return true;
            }

            @Override
            public void endVisit(ContinueStatement node) {
                SimpleName label = node.getLabel();
                if (label != null && !fLocalLoopLabels.contains(label.getIdentifier())) {
                    if (fEnclosingLoopLabel == null || !label.getIdentifier().equals(fEnclosingLoopLabel.getIdentifier())) {
                        continueMatchesLoopProblem[0] = Messages.format(RefactoringCoreMessages.ExtractMethodAnalyzer_branch_continue_mismatch, //$NON-NLS-1$
                        new Object[] { "continue " + label.getIdentifier() });
                    }
                }
            }
        });
    }
    return continueMatchesLoopProblem[0];
}

Example 43 with Block

use of org.eclipse.jdt.core.dom.Block in project che by eclipse.

the class PromoteTempToFieldRefactoring method addLocalDeclarationSplit.

private void addLocalDeclarationSplit(ASTRewrite rewrite) {
    VariableDeclarationStatement tempDeclarationStatement = getTempDeclarationStatement();
    ASTNode parentStatement = tempDeclarationStatement.getParent();
    ListRewrite listRewrite;
    if (parentStatement instanceof SwitchStatement) {
        listRewrite = rewrite.getListRewrite(parentStatement, SwitchStatement.STATEMENTS_PROPERTY);
    } else if (parentStatement instanceof Block) {
        listRewrite = rewrite.getListRewrite(parentStatement, Block.STATEMENTS_PROPERTY);
    } else {
        // should not happen. VariableDeclaration's can not be in a control statement body
        listRewrite = null;
        Assert.isTrue(false);
    }
    int statementIndex = listRewrite.getOriginalList().indexOf(tempDeclarationStatement);
    Assert.isTrue(statementIndex != -1);
    Statement newStatement = createNewAssignmentStatement(rewrite);
    List<VariableDeclarationFragment> fragments = tempDeclarationStatement.fragments();
    int fragmentIndex = fragments.indexOf(fTempDeclarationNode);
    Assert.isTrue(fragmentIndex != -1);
    if (fragments.size() == 1) {
        rewrite.replace(tempDeclarationStatement, newStatement, null);
        return;
    }
    for (int i1 = fragmentIndex, n = fragments.size(); i1 < n; i1++) {
        VariableDeclarationFragment fragment = fragments.get(i1);
        rewrite.remove(fragment, null);
    }
    if (fragmentIndex == 0)
        rewrite.remove(tempDeclarationStatement, null);
    Assert.isTrue(tempHasInitializer());
    listRewrite.insertAt(newStatement, statementIndex + 1, null);
    if (fragmentIndex + 1 < fragments.size()) {
        VariableDeclarationFragment firstFragmentAfter = fragments.get(fragmentIndex + 1);
        VariableDeclarationFragment copyfirstFragmentAfter = (VariableDeclarationFragment) rewrite.createCopyTarget(firstFragmentAfter);
        VariableDeclarationStatement statement = getAST().newVariableDeclarationStatement(copyfirstFragmentAfter);
        Type type = (Type) rewrite.createCopyTarget(tempDeclarationStatement.getType());
        statement.setType(type);
        List<IExtendedModifier> modifiers = tempDeclarationStatement.modifiers();
        if (modifiers.size() > 0) {
            ListRewrite modifiersRewrite = rewrite.getListRewrite(tempDeclarationStatement, VariableDeclarationStatement.MODIFIERS2_PROPERTY);
            ASTNode firstModifier = (ASTNode) modifiers.get(0);
            ASTNode lastModifier = (ASTNode) modifiers.get(modifiers.size() - 1);
            ASTNode modifiersCopy = modifiersRewrite.createCopyTarget(firstModifier, lastModifier);
            statement.modifiers().add(modifiersCopy);
        }
        for (int i = fragmentIndex + 2; i < fragments.size(); i++) {
            VariableDeclarationFragment fragment = fragments.get(i);
            VariableDeclarationFragment fragmentCopy = (VariableDeclarationFragment) rewrite.createCopyTarget(fragment);
            statement.fragments().add(fragmentCopy);
        }
        listRewrite.insertAt(statement, statementIndex + 2, null);
    }
}

Example 44 with Block

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

the class CleanCodeRatherThanSemicolonRefactoring method visit.

@Override
public boolean visit(EmptyStatement node) {
    ASTNode parent = node.getParent();
    if (parent instanceof Block) {
        this.ctx.getRefactorings().remove(node);
        return DO_NOT_VISIT_SUBTREE;
    }
    parent = getParentIgnoring(node, Block.class);
    if (parent instanceof IfStatement) {
        IfStatement is = (IfStatement) parent;
        List<Statement> thenStmts = asList(is.getThenStatement());
        List<Statement> elseStmts = asList(is.getElseStatement());
        boolean thenIsEmptyStmt = thenStmts.size() == 1 && is(thenStmts.get(0), EmptyStatement.class);
        boolean elseIsEmptyStmt = elseStmts.size() == 1 && is(elseStmts.get(0), EmptyStatement.class);
        if (thenIsEmptyStmt && elseIsEmptyStmt) {
            this.ctx.getRefactorings().remove(parent);
            return DO_NOT_VISIT_SUBTREE;
        } else if (thenIsEmptyStmt && is.getElseStatement() == null) {
            this.ctx.getRefactorings().remove(is);
            return DO_NOT_VISIT_SUBTREE;
        } else if (elseIsEmptyStmt) {
            this.ctx.getRefactorings().remove(is.getElseStatement());
            return DO_NOT_VISIT_SUBTREE;
        }
    } else if (parent instanceof TryStatement) {
        TryStatement ts = (TryStatement) parent;
        return maybeRemoveEmptyStmtBody(node, ts, ts.getBody());
    } else if (parent instanceof EnhancedForStatement) {
        EnhancedForStatement efs = (EnhancedForStatement) parent;
        return maybeRemoveEmptyStmtBody(node, efs, efs.getBody());
    } else if (parent instanceof ForStatement) {
        ForStatement fs = (ForStatement) parent;
        return maybeRemoveEmptyStmtBody(node, fs, fs.getBody());
    } else if (parent instanceof WhileStatement) {
        WhileStatement ws = (WhileStatement) parent;
        return maybeRemoveEmptyStmtBody(node, ws, ws.getBody());
    }
    return VISIT_SUBTREE;
}

Example 45 with Block

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

the class RemoveSemiColonRefactoring method visit.

@Override
public boolean visit(TryStatement node) {
    final List<VariableDeclarationExpression> resources = resources(node);
    if (resources.isEmpty()) {
        return VISIT_SUBTREE;
    }
    VariableDeclarationExpression lastResource = getLast(resources);
    Block body = node.getBody();
    return removeSuperfluousSemiColons(node, getEndPosition(lastResource), body.getStartPosition());
}