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

Example 36 with Statement

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

the class MergeConditionalBlocksRefactoring method visit.

@Override
public boolean visit(IfStatement node) {
    final Expression firstCondition = node.getExpression();
    final List<Statement> ifCode = asList(node.getThenStatement());
    final List<Statement> elseCode = asList(node.getElseStatement());
    if (elseCode != null && elseCode.size() == 1 && elseCode.get(0) instanceof IfStatement) {
        final IfStatement subNode = (IfStatement) elseCode.get(0);
        final Expression secondCondition = subNode.getExpression();
        return maybeMergeBlocks(firstCondition, ifCode, subNode, secondCondition, subNode.getThenStatement(), subNode.getElseStatement(), true) && maybeMergeBlocks(firstCondition, ifCode, subNode, secondCondition, subNode.getElseStatement(), subNode.getThenStatement(), false);
    }
    return VISIT_SUBTREE;
}

Example 37 with Statement

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

the class SwitchRefactoring method getSwitchStructure.

private List<SwitchCaseSection> getSwitchStructure(final SwitchStatement node) {
    final List<SwitchCaseSection> switchStructure = new ArrayList<SwitchCaseSection>();
    SwitchCaseSection currentCase = new SwitchCaseSection();
    for (final Statement stmt : statements(node)) {
        if (stmt instanceof SwitchCase) {
            final SwitchCase swithCase = (SwitchCase) stmt;
            if (!currentCase.stmts.isEmpty()) {
                switchStructure.add(currentCase);
                currentCase = new SwitchCaseSection();
            }
            currentCase.existingCases.add(swithCase);
        } else {
            currentCase.stmts.add(stmt);
        }
    }
    if (!currentCase.existingCases.isEmpty()) {
        switchStructure.add(currentCase);
    }
    return switchStructure;
}

Example 38 with Statement

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

the class HotSpotIntrinsicedAPIsRefactoring method visit.

@Override
public boolean visit(ForStatement node) {
    final SystemArrayCopyParams params = new SystemArrayCopyParams();
    collectUniqueIndex(node, params);
    final IVariableBinding incrementedIdx = getUniqueIncrementedVariable(node);
    final List<Statement> stmts = asList(node.getBody());
    if (equalNotNull(params.indexVarBinding, incrementedIdx) && stmts.size() == 1) {
        collectLength(node.getExpression(), incrementedIdx, params);
        final Assignment as = asExpression(stmts.get(0), Assignment.class);
        if (hasOperator(as, ASSIGN)) {
            final Expression lhs = as.getLeftHandSide();
            final Expression rhs = as.getRightHandSide();
            if (lhs instanceof ArrayAccess && rhs instanceof ArrayAccess) {
                final ArrayAccess aaLHS = (ArrayAccess) lhs;
                final ArrayAccess aaRHS = (ArrayAccess) rhs;
                params.destArrayExpr = aaLHS.getArray();
                params.srcArrayExpr = aaRHS.getArray();
                if (haveSameType(params.srcArrayExpr, params.destArrayExpr)) {
                    params.destPos = calcIndex(aaLHS.getIndex(), params);
                    params.srcPos = calcIndex(aaRHS.getIndex(), params);
                    return replaceWithSystemArrayCopyCloneAll(node, params);
                }
            }
        }
    }
    return VISIT_SUBTREE;
}

Example 39 with Statement

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

the class IfRatherThanWhileAndFallsThroughRefactoring method isEndingWithExit.

/**
 * Return true if the statement falls through.
 *
 * @param stmt the statement
 * @return true if the statement falls through.
 */
private boolean isEndingWithExit(final Statement stmt) {
    final List<Statement> stmts = asList(stmt);
    if (stmts.isEmpty()) {
        return false;
    }
    final Statement lastStmt = stmts.get(stmts.size() - 1);
    switch(lastStmt.getNodeType()) {
        case RETURN_STATEMENT:
        case THROW_STATEMENT:
            return true;
        case BREAK_STATEMENT:
            final BreakStatement breakStmt = (BreakStatement) lastStmt;
            return breakStmt.getLabel() == null;
        case IF_STATEMENT:
            final IfStatement ifStmt = (IfStatement) lastStmt;
            final Statement thenStmt = ifStmt.getThenStatement();
            final Statement elseStmt = ifStmt.getElseStatement();
            return isEndingWithExit(thenStmt) && isEndingWithExit(elseStmt);
        default:
            return false;
    }
}

Example 40 with Statement

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

the class ReduceVariableScopeRefactoring method replace.

private void replace(VariableAccess varDecl, VariableAccess varAccess) {
    final ASTBuilder b = this.ctx.getASTBuilder();
    final AST ast = b.getAST();
    final ASTNode scope = varAccess.getScope();
    final Name varName = varAccess.getVariableName();
    final Type varType = getType(varDecl.getVariableName().getParent());
    if (scope instanceof Block) {
        final List<Statement> stmts = statements((Block) scope);
        for (int i = 0; i < stmts.size(); i++) {
            final Statement stmt = stmts.get(i);
            // FIXME i=0
            final Expression parentExpr = getAncestor(varName, Expression.class);
            // FIXME i=0
            final Statement parentStmt = getAncestor(parentExpr, Statement.class);
            if (stmt.equals(parentStmt)) {
                final VariableDeclarationFragment vdf = getVariableDeclarationFragment(parentExpr, varName);
                final VariableDeclarationStatement vds = ast.newVariableDeclarationStatement(vdf);
                vds.setType(varType);
                this.ctx.getRefactorings().replace(stmt, vds);
                break;
            }
        }
    } else if (scope instanceof EnhancedForStatement) {
        final EnhancedForStatement efs = (EnhancedForStatement) scope;
        final EnhancedForStatement newEfs = b.copy(efs);
        newEfs.setParameter(b.copy(efs.getParameter()));
        newEfs.setExpression(b.copy(efs.getExpression()));
        final Statement parentStmt = getAncestor(varName, Statement.class);
        if (equalNotNull(efs.getBody(), parentStmt)) {
            newEfs.setBody(copy(efs.getBody(), varName));
        }
        this.ctx.getRefactorings().replace(efs, newEfs);
    } else if (scope instanceof ForStatement) {
        final ForStatement fs = (ForStatement) scope;
        final ForStatement newFs = b.copy(fs);
        final List<Expression> initializers = initializers(newFs);
        if (initializers.size() == 1) {
            final Expression init = initializers.remove(0);
            final VariableDeclarationFragment vdf = getVariableDeclarationFragment(init, varName);
            final VariableDeclarationExpression vde = ast.newVariableDeclarationExpression(vdf);
            vde.setType(varType);
            initializers.add(vde);
            this.ctx.getRefactorings().replace(fs, newFs);
        // TODO JNR
        // if (equalNotNull(fs.getBody(), parentStmt)) {
        // newFs.setBody(copy(fs.getBody()));
        // }
        } else {
            throw new NotImplementedException(scope, "for more than one initializer in for loop.");
        }
    } else if (scope instanceof WhileStatement) {
        final WhileStatement ws = (WhileStatement) scope;
        final WhileStatement newWs = ast.newWhileStatement();
        newWs.setExpression(b.copy(ws.getExpression()));
        final Statement parentStmt = getAncestor(varName, Statement.class);
        if (equalNotNull(ws.getBody(), parentStmt)) {
            newWs.setBody(copy(ws.getBody(), varName));
        }
        this.ctx.getRefactorings().replace(ws, newWs);
    } else if (scope instanceof IfStatement) {
        final IfStatement is = (IfStatement) scope;
        final IfStatement newIs = ast.newIfStatement();
        newIs.setExpression(b.copy(is.getExpression()));
        final Statement parentStmt = getAncestor(varName, Statement.class);
        if (equalNotNull(is.getThenStatement(), parentStmt)) {
            newIs.setThenStatement(copy(is.getThenStatement(), varName));
            if (is.getElseStatement() != null) {
                newIs.setElseStatement(b.copy(is.getElseStatement()));
            }
            this.ctx.getRefactorings().replace(is, newIs);
        } else if (equalNotNull(is.getElseStatement(), parentStmt)) {
            if (is.getThenStatement() != null) {
                newIs.setThenStatement(b.copy(is.getThenStatement()));
            }
            newIs.setElseStatement(copy(is.getElseStatement(), varName));
            this.ctx.getRefactorings().replace(is, newIs);
        } else {
            throw new IllegalStateException(is, "Parent statement should be inside the then or else statement of this if statement: " + is);
        }
    } else {
        throw new NotImplementedException(scope);
    }
}