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

Example 86 with Block

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

the class CompletionGenerator method findClosestNode.

protected static ASTNode findClosestNode(int lineNumber, ASTNode node) {
    log("findClosestNode to line " + lineNumber);
    ASTNode parent = findClosestParentNode(lineNumber, node);
    log("findClosestParentNode returned " + getNodeAsString(parent));
    if (parent == null)
        return null;
    if (getLineNumber(parent) == lineNumber) {
        log(parent + "|PNode " + getLineNumber(parent) + ", lfor " + lineNumber);
        return parent;
    }
    List<ASTNode> nodes;
    if (parent instanceof TypeDeclaration) {
        nodes = ((TypeDeclaration) parent).bodyDeclarations();
    } else if (parent instanceof Block) {
        nodes = ((Block) parent).statements();
    } else {
        log("findClosestNode() found " + getNodeAsString(parent));
        return null;
    }
    if (nodes.size() > 0) {
        ASTNode retNode = parent;
        for (ASTNode cNode : nodes) {
            log(cNode + "|cNode " + getLineNumber(cNode) + ", lfor " + lineNumber);
            if (getLineNumber(cNode) <= lineNumber)
                retNode = cNode;
        }
        return retNode;
    }
    return parent;
}

Example 87 with Block

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

the class AddBracketsToControlStatementRefactoring method setBlock.

private boolean setBlock(Statement statement) {
    if (statement == null) {
        return VISIT_SUBTREE;
    }
    final ASTBuilder b = this.ctx.getASTBuilder();
    final Block block = b.block(b.copy(statement));
    block.accept(this);
    this.ctx.getRefactorings().replace(statement, block);
    return DO_NOT_VISIT_SUBTREE;
}

Example 88 with Block

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

the class CommonCodeInIfElseStatementRefactoring method visit.

// TODO handle switch statements
// TODO also handle ternary operator, ConditionalExpression
@Override
public boolean visit(IfStatement node) {
    if (node.getElseStatement() == null) {
        return VISIT_SUBTREE;
    }
    if (!(node.getParent() instanceof Block)) {
        // when not inside curly braces
        return VISIT_SUBTREE;
    }
    final ASTBuilder b = this.ctx.getASTBuilder();
    final Refactorings r = this.ctx.getRefactorings();
    final List<List<Statement>> allCasesStmts = new ArrayList<List<Statement>>();
    final List<List<ASTNode>> removedCaseStmts = new LinkedList<List<ASTNode>>();
    // collect all the if / else if / else if / ... / else cases
    if (collectAllCases(allCasesStmts, node)) {
        // initialize removedCaseStmts list
        for (int i = 0; i < allCasesStmts.size(); i++) {
            removedCaseStmts.add(new LinkedList<ASTNode>());
        }
        // if all cases exist
        final ASTMatcher matcher = new ASTMatcherSameVariablesAndMethods();
        final int minSize = minSize(allCasesStmts);
        final List<Statement> caseStmts = allCasesStmts.get(0);
        boolean result = VISIT_SUBTREE;
        // identify matching statements starting from the beginning of each case
        for (int stmtIndex = 0; stmtIndex < minSize; stmtIndex++) {
            if (!match(matcher, allCasesStmts, true, stmtIndex, 0, allCasesStmts.size())) {
                break;
            }
            r.insertBefore(b.copy(caseStmts.get(stmtIndex)), node);
            removeStmts(allCasesStmts, true, stmtIndex, removedCaseStmts);
            result = DO_NOT_VISIT_SUBTREE;
        }
        // identify matching statements starting from the end of each case
        for (int stmtIndex = 1; 0 <= minSize - stmtIndex; stmtIndex++) {
            if (!match(matcher, allCasesStmts, false, stmtIndex, 0, allCasesStmts.size()) || anyContains(removedCaseStmts, allCasesStmts, stmtIndex)) {
                break;
            }
            r.insertAfter(b.copy(caseStmts.get(caseStmts.size() - stmtIndex)), node);
            removeStmts(allCasesStmts, false, stmtIndex, removedCaseStmts);
            result = DO_NOT_VISIT_SUBTREE;
        }
        // remove the nodes common to all cases
        final List<Boolean> areCasesEmpty = new ArrayList<Boolean>(allCasesStmts.size());
        for (int i = 0; i < allCasesStmts.size(); i++) {
            areCasesEmpty.add(Boolean.FALSE);
        }
        removeStmtsFromCases(allCasesStmts, removedCaseStmts, areCasesEmpty);
        if (allEmpty(areCasesEmpty)) {
            // TODO JNR keep comments
            r.remove(node);
            return DO_NOT_VISIT_SUBTREE;
        }
        // remove empty cases
        if (areCasesEmpty.get(0)) {
            if (areCasesEmpty.size() == 2 && !areCasesEmpty.get(1)) {
                // then clause is empty and there is only one else clause
                // => revert if statement
                r.replace(node, b.if0(b.not(b.parenthesizeIfNeeded(b.move(node.getExpression()))), b.move(node.getElseStatement())));
            } else {
                r.replace(node.getThenStatement(), b.block());
            }
            result = DO_NOT_VISIT_SUBTREE;
        }
        for (int i = 1; i < areCasesEmpty.size(); i++) {
            if (areCasesEmpty.get(i)) {
                final Statement firstStmt = allCasesStmts.get(i).get(0);
                r.remove(findNodeToRemove(firstStmt, firstStmt.getParent()));
                result = DO_NOT_VISIT_SUBTREE;
            }
        }
        return result;
    }
    return VISIT_SUBTREE;
}

Example 89 with Block

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

the class IfElseIfRefactoring method visit.

// TODO JNR
// UseIfElseIfRefactoring
// if (b) {
// return i;
// }
// if (c) {
// return j;
// }
// if (d) {
// return k;
// }
// return l;
@Override
public boolean visit(IfStatement node) {
    final Statement elseStmt = node.getElseStatement();
    if (elseStmt instanceof Block) {
        List<Statement> elseStmts = statements((Block) elseStmt);
        if (elseStmts.size() == 1 && elseStmts.get(0) instanceof IfStatement) {
            final ASTBuilder b = this.ctx.getASTBuilder();
            this.ctx.getRefactorings().set(node, ELSE_STATEMENT_PROPERTY, b.copy(elseStmts.get(0)));
            return DO_NOT_VISIT_SUBTREE;
        }
    }
    return VISIT_SUBTREE;
}