Example usage for org.eclipse.jdt.core.dom TryStatement resources

List of usage examples for org.eclipse.jdt.core.dom TryStatement resources

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Introduction

In this page you can find the example usage for org.eclipse.jdt.core.dom TryStatement resources.

Prototype

ASTNode.NodeList resources

To view the source code for org.eclipse.jdt.core.dom TryStatement resources.

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Document

The resource expressions (element type: Expression ).

Usage

From source file:at.bestsolution.fxide.jdt.corext.dom.ASTFlattener.java

License:Open Source License

@Override
public boolean visit(TryStatement node) {
    this.fBuffer.append("try ");//$NON-NLS-1$
    if (node.getAST().apiLevel() >= JLS4) {
        if (!node.resources().isEmpty()) {
            this.fBuffer.append("(");//$NON-NLS-1$
            for (Iterator<VariableDeclarationExpression> it = node.resources().iterator(); it.hasNext();) {
                VariableDeclarationExpression var = it.next();
                var.accept(this);
                if (it.hasNext()) {
                    this.fBuffer.append(",");//$NON-NLS-1$
                }/*w w  w .j a  v  a2 s  . co  m*/
            }
            this.fBuffer.append(") ");//$NON-NLS-1$
        }
    }
    node.getBody().accept(this);
    this.fBuffer.append(" ");//$NON-NLS-1$
    for (Iterator<CatchClause> it = node.catchClauses().iterator(); it.hasNext();) {
        CatchClause cc = it.next();
        cc.accept(this);
    }
    if (node.getFinally() != null) {
        this.fBuffer.append("finally ");//$NON-NLS-1$
        node.getFinally().accept(this);
    }
    return false;
}

From source file:boa.datagen.util.Java7Visitor.java

License:Apache License

@Override
public boolean visit(TryStatement node) {
    boa.types.Ast.Statement.Builder b = boa.types.Ast.Statement.newBuilder();
    //      b.setPosition(pos.build());
    List<boa.types.Ast.Statement> list = statements.peek();
    b.setKind(boa.types.Ast.Statement.StatementKind.TRY);
    statements.push(new ArrayList<boa.types.Ast.Statement>());
    node.getBody().accept(this);
    for (Object c : node.catchClauses())
        ((CatchClause) c).accept(this);
    if (node.getFinally() != null)
        node.getFinally().accept(this);
    for (boa.types.Ast.Statement s : statements.pop())
        b.addStatements(s);/*from w ww  .j av a  2  s  . c o m*/
    if (node.resources() != null)
        for (Object v : node.resources()) {
            ((VariableDeclarationExpression) v).accept(this);
            b.addInitializations(expressions.pop());
        }
    list.add(b.build());
    return false;
}

From source file:com.bsiag.eclipse.jdt.java.formatter.linewrap.WrapPreparator.java

License:Open Source License

@Override
public boolean visit(TryStatement node) {
    handleArguments(node.resources(), this.options.alignment_for_resources_in_try);
    return true;//from ww w  .j  ava  2  s  .  c om
}

From source file:com.bsiag.eclipse.jdt.java.formatter.SpacePreparator.java

License:Open Source License

@Override
public boolean visit(TryStatement node) {
    List<VariableDeclarationExpression> resources = node.resources();
    if (!resources.isEmpty()) {
        handleToken(node, TokenNameLPAREN, this.options.insert_space_before_opening_paren_in_try,
                this.options.insert_space_after_opening_paren_in_try);
        handleTokenBefore(node.getBody(), TokenNameRPAREN,
                this.options.insert_space_before_closing_paren_in_try, false);
        for (int i = 1; i < resources.size(); i++) {
            handleTokenBefore(resources.get(i), TokenNameSEMICOLON,
                    this.options.insert_space_before_semicolon_in_try_resources,
                    this.options.insert_space_after_semicolon_in_try_resources);
        }/*from  w w  w  .  j a v  a 2  s  .  co m*/
        // there can be a semicolon after the last resource
        int index = this.tm.firstIndexAfter(resources.get(resources.size() - 1), -1);
        while (index < this.tm.size()) {
            Token token = this.tm.get(index++);
            if (token.tokenType == TokenNameSEMICOLON) {
                handleToken(token, this.options.insert_space_before_semicolon_in_try_resources, false);
            } else if (token.tokenType == TokenNameRPAREN) {
                break;
            }
        }
    }
    return true;
}

From source file:com.google.devtools.j2objc.util.ASTUtil.java

License:Apache License

@SuppressWarnings("unchecked")
public static List<VariableDeclarationExpression> getResources(TryStatement tryStatement) {
    return tryStatement.resources();
}

From source file:com.google.googlejavaformat.java.JavaInputAstVisitor.java

License:Apache License

/** Visitor method for {@link TryStatement}s. */
@Override/*from  ww w . j av  a  2 s  .  c o  m*/
public boolean visit(TryStatement node) {
    sync(node);
    builder.open(ZERO);
    token("try");
    builder.space();
    if (!node.resources().isEmpty()) {
        token("(");
        builder.open(plusFour);
        boolean first = true;
        for (VariableDeclarationExpression resource : (List<VariableDeclarationExpression>) node.resources()) {
            if (!first) {
                token(";");
                builder.forcedBreak();
            }
            visit(resource);
            first = false;
        }
        // TODO(cushon): emit a space after the optional trailing semi-colon
        builder.guessToken(";");
        token(")");
        builder.close();
        builder.space();
    }
    // An empty try-with-resources body can collapse to "{}" if there are no trailing catch or
    // finally blocks.
    boolean trailingClauses = !node.catchClauses().isEmpty() || node.getFinally() != null;
    visitBlock(node.getBody(), CollapseEmptyOrNot.valueOf(!trailingClauses), AllowLeadingBlankLine.YES,
            AllowTrailingBlankLine.valueOf(trailingClauses));
    for (int i = 0; i < node.catchClauses().size(); i++) {
        CatchClause catchClause = (CatchClause) node.catchClauses().get(i);
        trailingClauses = i < node.catchClauses().size() - 1 || node.getFinally() != null;
        visitCatchClause(catchClause, AllowTrailingBlankLine.valueOf(trailingClauses));
    }
    if (node.getFinally() != null) {
        builder.space();
        token("finally");
        builder.space();
        visitBlock(node.getFinally(), CollapseEmptyOrNot.NO, AllowLeadingBlankLine.YES,
                AllowTrailingBlankLine.NO);
    }
    builder.close();
    return false;
}

From source file:org.autorefactor.refactoring.ASTHelper.java

License:Open Source License

/**
 * Generecized version of the equivalent JDT method.
 *
 * @param node the node on which to call the equivalent JDT method
 * @return a List of variable declaration expressions
 * @see TryStatement#resources()/*from  ww w  . j a  v  a2s  .  c  o m*/
 */
@SuppressWarnings("unchecked")
public static List<VariableDeclarationExpression> resources(TryStatement node) {
    return node.resources();
}

From source file:org.autorefactor.refactoring.rules.DeadCodeEliminationRefactoring.java

License:Open Source License

@Override
public boolean visit(TryStatement node) {
    final List<Statement> tryStmts = asList(node.getBody());
    if (tryStmts.isEmpty()) {
        final List<Statement> finallyStmts = asList(node.getFinally());
        if (!finallyStmts.isEmpty()) {
            final ASTBuilder b = this.ctx.getASTBuilder();
            this.ctx.getRefactorings().replace(node, b.copy(node.getFinally()));
            return DO_NOT_VISIT_SUBTREE;
        } else if (node.resources().isEmpty()) {
            this.ctx.getRefactorings().remove(node);
            return DO_NOT_VISIT_SUBTREE;
        }//from w ww .  j  a  va  2s.c om
    }
    // }else {
    // for (CatchClause catchClause : (List<CatchClause>) node.catchClauses()) {
    // final List<Statement> finallyStmts = asList(catchClause.getBody());
    // if (finallyStmts.isEmpty()) {
    // // TODO cannot remove without checking what subsequent catch clauses are
    // catching
    // this.ctx.getRefactorings().remove(catchClause);
    // }
    // }
    //
    // final List<Statement> finallyStmts = asList(node.getFinally());
    // if (finallyStmts.isEmpty()) {
    // this.ctx.getRefactorings().remove(node.getFinally());
    // }
    // // TODO If all finally and catch clauses have been removed,
    // // then we can remove the whole try statement and replace it with a simple block
    // return DO_NOT_VISIT_SUBTREE; // TODO JNR is this correct?
    // }
    return VISIT_SUBTREE;
}

From source file:org.autorefactor.refactoring.rules.TryWithResourceRefactoring.java

License:Open Source License

@Override
public boolean visit(TryStatement node) {
    final List<Statement> tryStmts = asList(node.getBody());
    if (!tryStmts.isEmpty() && tryStmts.get(0).getNodeType() == TRY_STATEMENT) {
        final TryStatement innerTryStmt = as(tryStmts.get(0), TryStatement.class);
        if (innerTryStmt != null && !innerTryStmt.resources().isEmpty()
                && innerTryStmt.catchClauses().isEmpty()) {
            return collapseTryStatements(node, innerTryStmt);
        }/*w  ww  .  j  a va  2s  .c  o  m*/
    }

    final VariableDeclarationStatement previousDeclStmt = as(getPreviousStatement(node),
            VariableDeclarationStatement.class);
    if (previousDeclStmt == null) {
        return VISIT_SUBTREE;
    }

    final VariableDeclarationFragment previousDeclFragment = getUniqueFragment(previousDeclStmt);
    final List<Statement> finallyStmts = asList(node.getFinally());
    if (previousDeclFragment != null && !finallyStmts.isEmpty()) {
        final List<ASTNode> nodesToRemove = new ArrayList<ASTNode>();
        nodesToRemove.add(previousDeclStmt);

        final Statement finallyStmt = finallyStmts.get(0);
        nodesToRemove.add(finallyStmts.size() == 1 ? node.getFinally() : finallyStmt);

        final ExpressionStatement finallyEs = as(finallyStmt, ExpressionStatement.class);
        final IfStatement finallyIs = as(finallyStmt, IfStatement.class);
        if (finallyEs != null) {
            final MethodInvocation mi = as(finallyEs.getExpression(), MethodInvocation.class);
            if (methodClosesCloseables(mi) && areSameVariables(previousDeclFragment, mi.getExpression())) {
                final VariableDeclarationExpression newResource = newResource(tryStmts, previousDeclStmt,
                        previousDeclFragment, nodesToRemove);
                return refactorToTryWithResources(node, newResource, nodesToRemove);
            }
        } else if (finallyIs != null && asList(finallyIs.getThenStatement()).size() == 1
                && asList(finallyIs.getElseStatement()).isEmpty()) {
            final Expression nullCheckedExpr = getNullCheckedExpression(finallyIs.getExpression());

            final Statement thenStmt = asList(finallyIs.getThenStatement()).get(0);
            final MethodInvocation mi = asExpression(thenStmt, MethodInvocation.class);
            if (methodClosesCloseables(mi)
                    && areSameVariables(previousDeclFragment, nullCheckedExpr, mi.getExpression())) {
                final VariableDeclarationExpression newResource = newResource(tryStmts, previousDeclStmt,
                        previousDeclFragment, nodesToRemove);
                return refactorToTryWithResources(node, newResource, nodesToRemove);
            }
        }
    }
    return VISIT_SUBTREE;
}

From source file:org.codemucker.jmutate.ast.JAstFlattener.java

License:Open Source License

public boolean visit(TryStatement node) {
    printIndent();/*from   w ww.  j ava 2 s.  com*/
    this.buffer.append("try ");//$NON-NLS-1$
    if (node.getAST().apiLevel() >= JLS4) {
        List resources = node.resources();
        if (!resources.isEmpty()) {
            this.buffer.append('(');
            for (Iterator it = resources.iterator(); it.hasNext();) {
                VariableDeclarationExpression variable = (VariableDeclarationExpression) it.next();
                variable.accept(this);
                if (it.hasNext()) {
                    this.buffer.append(';');
                }
            }
            this.buffer.append(')');
        }
    }
    node.getBody().accept(this);
    this.buffer.append(" ");//$NON-NLS-1$
    for (Iterator it = node.catchClauses().iterator(); it.hasNext();) {
        CatchClause cc = (CatchClause) it.next();
        cc.accept(this);
    }
    if (node.getFinally() != null) {
        this.buffer.append(" finally ");//$NON-NLS-1$
        node.getFinally().accept(this);
    }
    return false;
}