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

Example 1 with FieldAccess

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

the class EnhancedForRewriter method handleArrayIteration.

private void handleArrayIteration(EnhancedForStatement node) {
    Expression expression = node.getExpression();
    ArrayType expressionType = (ArrayType) expression.getTypeMirror();
    VariableElement loopVariable = node.getParameter().getVariableElement();
    TypeMirror componentType = expressionType.getComponentType();
    TypeElement iosArrayType = typeUtil.getIosArray(componentType);
    TypeMirror bufferType = new PointerType(componentType);
    VariableElement arrayVariable = GeneratedVariableElement.newLocalVar("a__", expressionType, null);
    VariableElement bufferVariable = GeneratedVariableElement.newLocalVar("b__", bufferType, null).setTypeQualifiers("const*");
    VariableElement endVariable = GeneratedVariableElement.newLocalVar("e__", bufferType, null).setTypeQualifiers("const*");
    VariableElement bufferField = GeneratedVariableElement.newField("buffer", bufferType, iosArrayType).addModifiers(Modifier.PUBLIC);
    VariableElement sizeField = GeneratedVariableElement.newField("size", typeUtil.getInt(), iosArrayType).addModifiers(Modifier.PUBLIC);
    VariableDeclarationStatement arrayDecl = new VariableDeclarationStatement(arrayVariable, TreeUtil.remove(expression));
    FieldAccess bufferAccess = new FieldAccess(bufferField, new SimpleName(arrayVariable));
    VariableDeclarationStatement bufferDecl = new VariableDeclarationStatement(bufferVariable, bufferAccess);
    InfixExpression endInit = new InfixExpression(bufferType, InfixExpression.Operator.PLUS, new SimpleName(bufferVariable), new FieldAccess(sizeField, new SimpleName(arrayVariable)));
    VariableDeclarationStatement endDecl = new VariableDeclarationStatement(endVariable, endInit);
    WhileStatement loop = new WhileStatement();
    loop.setExpression(new InfixExpression(typeUtil.getBoolean(), InfixExpression.Operator.LESS, new SimpleName(bufferVariable), new SimpleName(endVariable)));
    Block newLoopBody = makeBlock(TreeUtil.remove(node.getBody()));
    loop.setBody(newLoopBody);
    newLoopBody.addStatement(0, new VariableDeclarationStatement(loopVariable, new PrefixExpression(componentType, PrefixExpression.Operator.DEREFERENCE, new PostfixExpression(bufferVariable, PostfixExpression.Operator.INCREMENT))));
    Block block = new Block();
    List<Statement> stmts = block.getStatements();
    stmts.add(arrayDecl);
    stmts.add(bufferDecl);
    stmts.add(endDecl);
    stmts.add(loop);
    replaceLoop(node, block, loop);
}

Example 2 with FieldAccess

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

the class OperatorRewriter method getRetainedWithTarget.

// Gets the target object for a call to the RetainedWith wrapper.
private Expression getRetainedWithTarget(Assignment node, VariableElement var) {
    Expression lhs = node.getLeftHandSide();
    if (!(lhs instanceof FieldAccess)) {
        return new ThisExpression(ElementUtil.getDeclaringClass(var).asType());
    }
    // To avoid duplicating the target expression we must save the result to a local variable.
    FieldAccess fieldAccess = (FieldAccess) lhs;
    Expression target = fieldAccess.getExpression();
    VariableElement targetVar = GeneratedVariableElement.newLocalVar("__rw$" + rwCount++, target.getTypeMirror(), null);
    TreeUtil.asStatementList(TreeUtil.getOwningStatement(lhs)).add(0, new VariableDeclarationStatement(targetVar, null));
    fieldAccess.setExpression(new SimpleName(targetVar));
    CommaExpression commaExpr = new CommaExpression(new Assignment(new SimpleName(targetVar), target));
    node.replaceWith(commaExpr);
    commaExpr.addExpression(node);
    return new SimpleName(targetVar);
}

Example 3 with FieldAccess

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

the class TreeConverter method convertFieldAccess.

private TreeNode convertFieldAccess(JCTree.JCFieldAccess node) {
    String fieldName = node.name.toString();
    SourcePosition pos = getPosition(node);
    JCTree.JCExpression selected = node.getExpression();
    if (fieldName.equals("this")) {
        return new ThisExpression().setQualifier((Name) convert(selected)).setTypeMirror(node.sym.asType());
    }
    if ("super".equals(getMemberName(selected))) {
        SuperFieldAccess newNode = new SuperFieldAccess().setVariableElement((VariableElement) node.sym).setName(convertSimpleName(node.sym, node.type, pos));
        if (selected.getKind() == Kind.MEMBER_SELECT) {
            newNode.setQualifier((Name) convert(((JCTree.JCFieldAccess) selected).getExpression()));
        }
        return newNode;
    }
    if (node.getIdentifier().toString().equals("class")) {
        return new TypeLiteral(node.type).setType((Type) convertType(selected.type, pos, false).setPosition(getPosition(node)));
    }
    if (selected.getKind() == Kind.IDENTIFIER && (!node.sym.getKind().isField() || ElementUtil.isConstant((VariableElement) node.sym))) {
        if (selected.toString().equals("this")) {
            // Just return the constant.
            return new SimpleName(node.sym);
        }
        JCIdent ident = (JCTree.JCIdent) selected;
        return new QualifiedName().setName(convertSimpleName(node.sym, node.type, pos)).setQualifier(convertSimpleName(ident.sym, ident.type, pos)).setElement(node.sym);
    }
    if (selected.getKind() == Kind.MEMBER_SELECT) {
        TreeNode newSelected = convertFieldAccess((JCTree.JCFieldAccess) selected).setPosition(pos);
        if (newSelected.getKind() == TreeNode.Kind.QUALIFIED_NAME) {
            return new QualifiedName().setName(convertSimpleName(node.sym, node.type, pos)).setQualifier((QualifiedName) newSelected).setElement(node.sym);
        }
    }
    if (ElementUtil.isConstant((VariableElement) node.sym) && ElementUtil.isStatic(node.sym) && !(selected.getKind() == Kind.METHOD_INVOCATION)) {
        return new QualifiedName().setName(convertSimpleName(node.sym, node.type, pos)).setQualifier((Name) convert(selected)).setElement(node.sym);
    }
    return new FieldAccess().setVariableElement((VariableElement) node.sym).setExpression((Expression) convert(selected)).setName(convertSimpleName(node.sym, node.type, pos).setTypeMirror(node.type));
}

Example 4 with FieldAccess

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

the class JavaCloneWriter method createVolatileCloneStatement.

private Statement createVolatileCloneStatement(VariableElement var, VariableElement originalVar, boolean isWeak) {
    TypeMirror voidType = typeUtil.getVoid();
    TypeMirror pointerType = new PointerType(var.asType());
    String funcName = "JreCloneVolatile" + (isWeak ? "" : "Strong");
    FunctionElement element = new FunctionElement(funcName, voidType, null).addParameters(pointerType, pointerType);
    FunctionInvocation invocation = new FunctionInvocation(element, voidType);
    invocation.addArgument(new PrefixExpression(pointerType, PrefixExpression.Operator.ADDRESS_OF, new SimpleName(var)));
    invocation.addArgument(new PrefixExpression(pointerType, PrefixExpression.Operator.ADDRESS_OF, new FieldAccess(var, new SimpleName(originalVar))));
    return new ExpressionStatement(invocation);
}

Example 5 with FieldAccess

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

the class Rewriter method visit.

@Override
public boolean visit(QualifiedName node) {
    VariableElement var = TreeUtil.getVariableElement(node);
    Expression qualifier = node.getQualifier();
    if (var != null && var.getKind().isField() && TreeUtil.getVariableElement(qualifier) != null) {
        // FieldAccess nodes are more easily mutated than QualifiedName.
        FieldAccess fieldAccess = new FieldAccess(var, node.getTypeMirror(), TreeUtil.remove(qualifier));
        node.replaceWith(fieldAccess);
        fieldAccess.accept(this);
        return false;
    }
    return true;
}