Examples with VariableDeclarationStatement com.google.devtools.j2objc.ast.VariableDeclarationStatement used on opensource projects

Example 11 with VariableDeclarationStatement

use of com.google.devtools.j2objc.ast.VariableDeclarationStatement in project j2objc by google.

the class ComplexExpressionExtractor method handleNode.

private void handleNode(Expression node, Collection<Expression> children) {
    if (node.getParent() instanceof Statement) {
        return;
    }
    int depth = 0;
    for (Expression child : children) {
        Integer childDepth = depths.get(child);
        depth = Math.max(depth, childDepth != null ? childDepth : 1);
    }
    if (depth >= maxDepth) {
        VariableElement newVar = GeneratedVariableElement.newLocalVar("complex$" + count++, node.getTypeMirror(), currentMethod);
        Statement newStmt = new VariableDeclarationStatement(newVar, node.copy());
        assert currentStatement != null;
        TreeUtil.insertBefore(currentStatement, newStmt);
        node.replaceWith(new SimpleName(newVar));
    } else {
        depths.put(node, depth + 1);
    }
}

Example 12 with VariableDeclarationStatement

use of com.google.devtools.j2objc.ast.VariableDeclarationStatement in project j2objc by google.

the class Rewriter method endVisit.

@Override
public void endVisit(VariableDeclarationStatement node) {
    if (options.isJDT()) {
        ListMultimap<Integer, VariableDeclarationFragment> newDeclarations = rewriteExtraDimensions(node.getFragments());
        if (newDeclarations != null) {
            List<Statement> statements = ((Block) node.getParent()).getStatements();
            int location = 0;
            while (location < statements.size() && !node.equals(statements.get(location))) {
                location++;
            }
            for (Integer dimensions : newDeclarations.keySet()) {
                List<VariableDeclarationFragment> fragments = newDeclarations.get(dimensions);
                VariableDeclarationStatement newDecl = new VariableDeclarationStatement(fragments.get(0));
                newDecl.getFragments().addAll(fragments.subList(1, fragments.size()));
                statements.add(++location, newDecl);
            }
        }
    }
}

Example 13 with VariableDeclarationStatement

use of com.google.devtools.j2objc.ast.VariableDeclarationStatement in project j2objc by google.

the class TreeConverter method convertVariableDeclaration.

private TreeNode convertVariableDeclaration(VariableTree node, TreePath parent) {
    TreePath path = getTreePath(parent, node);
    VariableElement element = (VariableElement) getElement(path);
    if (element.getKind() == ElementKind.FIELD) {
        FieldDeclaration newNode = new FieldDeclaration(element, (Expression) convert(node.getInitializer(), path));
        convertBodyDeclaration(node, parent, node.getModifiers(), newNode);
        return newNode;
    }
    if (element.getKind() == ElementKind.LOCAL_VARIABLE) {
        return new VariableDeclarationStatement(element, (Expression) convert(node.getInitializer(), path));
    }
    if (element.getKind() == ElementKind.ENUM_CONSTANT) {
        EnumConstantDeclaration newNode = new EnumConstantDeclaration().setVariableElement(element);
        convertBodyDeclaration(node, parent, node.getModifiers(), newNode);
        ClassInstanceCreation init = (ClassInstanceCreation) convert(node.getInitializer(), path);
        TreeUtil.moveList(init.getArguments(), newNode.getArguments());
        if (init.getAnonymousClassDeclaration() != null) {
            newNode.setAnonymousClassDeclaration(TreeUtil.remove(init.getAnonymousClassDeclaration()));
        }
        return newNode.setExecutablePair(init.getExecutablePair()).setVarargsType(init.getVarargsType());
    }
    return convertSingleVariable(node, parent);
}

Example 14 with VariableDeclarationStatement

use of com.google.devtools.j2objc.ast.VariableDeclarationStatement in project j2objc by google.

the class MethodTranslator method visitForStatement.

@Override
public TreeNode visitForStatement(com.strobel.decompiler.languages.java.ast.ForStatement node, Void data) {
    ForStatement forStatement = new ForStatement();
    for (com.strobel.decompiler.languages.java.ast.Statement init : node.getInitializers()) {
        TreeNode stmt = init.acceptVisitor(this, null);
        if (stmt instanceof VariableDeclarationStatement) {
            VariableDeclarationStatement varDeclStmt = (VariableDeclarationStatement) stmt;
            VariableDeclarationExpression varDeclExpr = new VariableDeclarationExpression().setType(Type.newType(varDeclStmt.getTypeMirror()));
            for (VariableDeclarationFragment varFrag : varDeclStmt.getFragments()) {
                varDeclExpr.addFragment(varFrag.copy());
            }
            forStatement.addInitializer(varDeclExpr);
        } else {
            forStatement.addInitializer(((ExpressionStatement) stmt).getExpression().copy());
        }
    }
    forStatement.setExpression((Expression) node.getCondition().acceptVisitor(this, null));
    for (com.strobel.decompiler.languages.java.ast.Statement updater : node.getIterators()) {
        TreeNode stmt = updater.acceptVisitor(this, null);
        forStatement.addUpdater(((ExpressionStatement) stmt).getExpression().copy());
    }
    forStatement.setBody((Statement) node.getEmbeddedStatement().acceptVisitor(this, null));
    return forStatement;
}

Example 15 with VariableDeclarationStatement

use of com.google.devtools.j2objc.ast.VariableDeclarationStatement in project j2objc by google.

the class Rewriter method visit.

@Override
public boolean visit(TryStatement node) {
    // This visit rewrites try-with-resources constructs into regular try statements according to
    // JLS 14.20.3. The rewriting is done in a visit instead of endVisit because the mutations may
    // result in more try-with-resources constructs that need to be rewritten recursively.
    List<TreeNode> resources = node.getResources();
    if (resources.isEmpty()) {
        return true;
    }
    if (!node.getCatchClauses().isEmpty() || node.getFinally() != null) {
        // Extended try-with-resources. (JLS 14.20.3.2)
        // The new innerTry statement will be a "Basic try-with-resources" and will be rewritten by
        // the code below when it is visited.
        TryStatement innerTry = new TryStatement().setBody(TreeUtil.remove(node.getBody()));
        ;
        TreeUtil.moveList(resources, innerTry.getResources());
        node.setBody(new Block().addStatement(innerTry));
        return true;
    }
    // Basic try-with-resources. (JLS 14.20.3.1)
    DeclaredType throwableType = (DeclaredType) typeUtil.getJavaThrowable().asType();
    VariableElement primaryException = GeneratedVariableElement.newLocalVar("__primaryException" + resources.size(), throwableType, null);
    TreeNode resource = resources.remove(0);
    VariableElement resourceVar = null;
    VariableDeclarationFragment resourceFrag = null;
    if (resource.getKind() == Kind.VARIABLE_DECLARATION_EXPRESSION) {
        List<VariableDeclarationFragment> resourceFrags = ((VariableDeclarationExpression) resource).getFragments();
        assert resourceFrags.size() == 1;
        resourceFrag = resourceFrags.get(0);
        resourceVar = resourceFrag.getVariableElement();
    } else {
        resourceVar = TreeUtil.getVariableElement((Expression) resource);
    }
    assert resourceVar != null;
    DeclaredType closeableType = typeUtil.findSupertype(resourceVar.asType(), "java.lang.AutoCloseable");
    ExecutablePair closeMethod = typeUtil.findMethod(closeableType, "close");
    ExecutablePair addSuppressedMethod = typeUtil.findMethod(throwableType, "addSuppressed", "java.lang.Throwable");
    Block block = new Block();
    if (resourceFrag != null) {
        block.addStatement(new VariableDeclarationStatement(resourceVar, TreeUtil.remove(resourceFrag.getInitializer())));
    }
    block.addStatement(new VariableDeclarationStatement(primaryException, new NullLiteral(typeUtil.getNull())));
    // If the current try node is the only statement in its parent block then replace the parent
    // block instead of the try node to avoid extra nesting of braces.
    TreeNode parent = node.getParent();
    if (parent instanceof Block && ((Block) parent).getStatements().size() == 1) {
        parent.replaceWith(block);
    } else {
        node.replaceWith(block);
    }
    block.addStatement(TreeUtil.remove(node));
    VariableElement caughtException = GeneratedVariableElement.newLocalVar("e", throwableType, null);
    Block catchBlock = new Block().addStatement(new ExpressionStatement(new Assignment(new SimpleName(primaryException), new SimpleName(caughtException)))).addStatement(new ThrowStatement(new SimpleName(caughtException)));
    node.addCatchClause(new CatchClause().setException(new SingleVariableDeclaration(caughtException)).setBody(catchBlock));
    Statement closeResource = new ExpressionStatement(new MethodInvocation(closeMethod, typeUtil.getVoid(), new SimpleName(resourceVar)));
    VariableElement suppressedException = GeneratedVariableElement.newLocalVar("e", throwableType, null);
    node.setFinally(new Block().addStatement(new IfStatement().setExpression(new InfixExpression(typeUtil.getBoolean(), InfixExpression.Operator.NOT_EQUALS, new SimpleName(resourceVar), new NullLiteral(typeUtil.getNull()))).setThenStatement(new Block().addStatement(new IfStatement().setExpression(new InfixExpression(typeUtil.getBoolean(), InfixExpression.Operator.NOT_EQUALS, new SimpleName(primaryException), new NullLiteral(typeUtil.getNull()))).setThenStatement(new Block().addStatement(new TryStatement().setBody(new Block().addStatement(closeResource)).addCatchClause(new CatchClause().setException(new SingleVariableDeclaration(suppressedException)).setBody(new Block().addStatement(new ExpressionStatement(new MethodInvocation(addSuppressedMethod, typeUtil.getVoid(), new SimpleName(primaryException)).addArgument(new SimpleName(suppressedException)))))))).setElseStatement(new Block().addStatement(closeResource.copy()))))));
    // Visit the new block instead of the current node because some of content of the node (eg. the
    // resource initializer) has been moved outside of the try node.
    block.accept(this);
    return false;
}