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

Example 1 with ContinueStatement

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

the class ExtractMethodRefactoring method replaceBranches.

private void replaceBranches(final CompilationUnitChange result) {
    ASTNode[] selectedNodes = fAnalyzer.getSelectedNodes();
    for (int i = 0; i < selectedNodes.length; i++) {
        ASTNode astNode = selectedNodes[i];
        astNode.accept(new ASTVisitor() {

            private LinkedList<String> fOpenLoopLabels = new LinkedList<String>();

            private void registerLoopLabel(Statement node) {
                String identifier;
                if (node.getParent() instanceof LabeledStatement) {
                    LabeledStatement labeledStatement = (LabeledStatement) node.getParent();
                    identifier = labeledStatement.getLabel().getIdentifier();
                } else {
                    identifier = null;
                }
                fOpenLoopLabels.add(identifier);
            }

            @Override
            public boolean visit(ForStatement node) {
                registerLoopLabel(node);
                return super.visit(node);
            }

            @Override
            public void endVisit(ForStatement node) {
                fOpenLoopLabels.removeLast();
            }

            @Override
            public boolean visit(WhileStatement node) {
                registerLoopLabel(node);
                return super.visit(node);
            }

            @Override
            public void endVisit(WhileStatement node) {
                fOpenLoopLabels.removeLast();
            }

            @Override
            public boolean visit(EnhancedForStatement node) {
                registerLoopLabel(node);
                return super.visit(node);
            }

            @Override
            public void endVisit(EnhancedForStatement node) {
                fOpenLoopLabels.removeLast();
            }

            @Override
            public boolean visit(DoStatement node) {
                registerLoopLabel(node);
                return super.visit(node);
            }

            @Override
            public void endVisit(DoStatement node) {
                fOpenLoopLabels.removeLast();
            }

            @Override
            public void endVisit(ContinueStatement node) {
                final SimpleName label = node.getLabel();
                if (fOpenLoopLabels.isEmpty() || (label != null && !fOpenLoopLabels.contains(label.getIdentifier()))) {
                    TextEditGroup description = new TextEditGroup(RefactoringCoreMessages.ExtractMethodRefactoring_replace_continue);
                    result.addTextEditGroup(description);
                    ReturnStatement rs = fAST.newReturnStatement();
                    IVariableBinding returnValue = fAnalyzer.getReturnValue();
                    if (returnValue != null) {
                        rs.setExpression(fAST.newSimpleName(getName(returnValue)));
                    }
                    fRewriter.replace(node, rs, description);
                }
            }
        });
    }
}

Example 2 with ContinueStatement

use of org.eclipse.jdt.core.dom.ContinueStatement 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 3 with ContinueStatement

use of org.eclipse.jdt.core.dom.ContinueStatement in project eclipse.jdt.ls 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<>();

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

Example 4 with ContinueStatement

use of org.eclipse.jdt.core.dom.ContinueStatement in project eclipse.jdt.ls by eclipse.

the class ExtractMethodRefactoring method replaceBranches.

private void replaceBranches(final CompilationUnitChange result) {
    ASTNode[] selectedNodes = fAnalyzer.getSelectedNodes();
    for (int i = 0; i < selectedNodes.length; i++) {
        ASTNode astNode = selectedNodes[i];
        astNode.accept(new ASTVisitor() {

            private LinkedList<String> fOpenLoopLabels = new LinkedList<>();

            private void registerLoopLabel(Statement node) {
                String identifier;
                if (node.getParent() instanceof LabeledStatement) {
                    LabeledStatement labeledStatement = (LabeledStatement) node.getParent();
                    identifier = labeledStatement.getLabel().getIdentifier();
                } else {
                    identifier = null;
                }
                fOpenLoopLabels.add(identifier);
            }

            @Override
            public boolean visit(ForStatement node) {
                registerLoopLabel(node);
                return super.visit(node);
            }

            @Override
            public void endVisit(ForStatement node) {
                fOpenLoopLabels.removeLast();
            }

            @Override
            public boolean visit(WhileStatement node) {
                registerLoopLabel(node);
                return super.visit(node);
            }

            @Override
            public void endVisit(WhileStatement node) {
                fOpenLoopLabels.removeLast();
            }

            @Override
            public boolean visit(EnhancedForStatement node) {
                registerLoopLabel(node);
                return super.visit(node);
            }

            @Override
            public void endVisit(EnhancedForStatement node) {
                fOpenLoopLabels.removeLast();
            }

            @Override
            public boolean visit(DoStatement node) {
                registerLoopLabel(node);
                return super.visit(node);
            }

            @Override
            public void endVisit(DoStatement node) {
                fOpenLoopLabels.removeLast();
            }

            @Override
            public void endVisit(ContinueStatement node) {
                final SimpleName label = node.getLabel();
                if (fOpenLoopLabels.isEmpty() || (label != null && !fOpenLoopLabels.contains(label.getIdentifier()))) {
                    TextEditGroup description = new TextEditGroup(RefactoringCoreMessages.ExtractMethodRefactoring_replace_continue);
                    result.addTextEditGroup(description);
                    ReturnStatement rs = fAST.newReturnStatement();
                    IVariableBinding returnValue = fAnalyzer.getReturnValue();
                    if (returnValue != null) {
                        rs.setExpression(fAST.newSimpleName(getName(returnValue)));
                    }
                    fRewriter.replace(node, rs, description);
                }
            }
        });
    }
}

Example 5 with ContinueStatement

use of org.eclipse.jdt.core.dom.ContinueStatement in project flux by eclipse.

the class AdvancedQuickAssistProcessor method getInverseIfContinueIntoIfThenInLoopsProposals.

private static boolean getInverseIfContinueIntoIfThenInLoopsProposals(IInvocationContext context, ASTNode covering, Collection<ICommandAccess> resultingCollections) {
    if (!(covering instanceof IfStatement)) {
        return false;
    }
    IfStatement ifStatement = (IfStatement) covering;
    if (ifStatement.getElseStatement() != null) {
        return false;
    }
    // check that 'then' is 'continue'
    if (!(ifStatement.getThenStatement() instanceof ContinueStatement)) {
        return false;
    }
    // check that 'if' statement is statement in block that is body of loop
    Block loopBlock = null;
    if (ifStatement.getParent() instanceof Block && ifStatement.getParent().getParent() instanceof ForStatement) {
        loopBlock = (Block) ifStatement.getParent();
    } else if (ifStatement.getParent() instanceof Block && ifStatement.getParent().getParent() instanceof WhileStatement) {
        loopBlock = (Block) ifStatement.getParent();
    } else {
        return false;
    }
    if (resultingCollections == null) {
        return true;
    }
    // 
    AST ast = covering.getAST();
    ASTRewrite rewrite = ASTRewrite.create(ast);
    // create inverted 'if' statement
    Expression inversedExpression = getInversedExpression(rewrite, ifStatement.getExpression());
    IfStatement newIf = ast.newIfStatement();
    newIf.setExpression(inversedExpression);
    // prepare 'then' for new 'if'
    Block thenBlock = ast.newBlock();
    int ifIndex = loopBlock.statements().indexOf(ifStatement);
    for (int i = ifIndex + 1; i < loopBlock.statements().size(); i++) {
        Statement statement = (Statement) loopBlock.statements().get(i);
        thenBlock.statements().add(rewrite.createMoveTarget(statement));
    }
    newIf.setThenStatement(thenBlock);
    // replace 'if' statement in loop
    rewrite.replace(ifStatement, newIf, null);
    // add correction proposal
    String label = CorrectionMessages.AdvancedQuickAssistProcessor_inverseIfContinue_description;
    // Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
    ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, IProposalRelevance.INVERSE_IF_CONTINUE);
    resultingCollections.add(proposal);
    return true;
}