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

Example 21 with Expression

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

the class OperatorRewriter method rewriteRegularAssignment.

private void rewriteRegularAssignment(Assignment node) {
    VariableElement var = TreeUtil.getVariableElement(node.getLeftHandSide());
    if (var == null) {
        return;
    }
    handleRetainedLocal(var, node.getRightHandSide());
    boolean isRetainedWith = ElementUtil.isRetainedWithField(var);
    String funcName = getAssignmentFunctionName(node, var, isRetainedWith);
    if (funcName == null) {
        return;
    }
    TypeMirror type = node.getTypeMirror();
    TypeMirror idType = TypeUtil.ID_TYPE;
    TypeMirror declaredType = type.getKind().isPrimitive() ? type : idType;
    Expression lhs = node.getLeftHandSide();
    FunctionElement element = new FunctionElement(funcName, declaredType, null);
    FunctionInvocation invocation = new FunctionInvocation(element, type);
    List<Expression> args = invocation.getArguments();
    if (isRetainedWith) {
        element.addParameters(idType);
        args.add(getRetainedWithTarget(node, var));
    }
    element.addParameters(TypeUtil.ID_PTR_TYPE, idType);
    args.add(new PrefixExpression(new PointerType(lhs.getTypeMirror()), PrefixExpression.Operator.ADDRESS_OF, TreeUtil.remove(lhs)));
    args.add(TreeUtil.remove(node.getRightHandSide()));
    node.replaceWith(invocation);
}

Example 22 with Expression

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

the class OperatorRewriter method rewriteStringConcatenation.

private void rewriteStringConcatenation(InfixExpression node) {
    List<Expression> childOperands = node.getOperands();
    List<Expression> operands = Lists.newArrayListWithCapacity(childOperands.size());
    TreeUtil.moveList(childOperands, operands);
    operands = coalesceStringLiterals(operands);
    if (operands.size() == 1 && typeUtil.isString(operands.get(0).getTypeMirror())) {
        node.replaceWith(operands.get(0));
        return;
    }
    TypeMirror stringType = typeUtil.getJavaString().asType();
    FunctionElement element = new FunctionElement("JreStrcat", stringType, null).addParameters(TypeUtil.NATIVE_CHAR_PTR).setIsVarargs(true);
    FunctionInvocation invocation = new FunctionInvocation(element, stringType);
    List<Expression> args = invocation.getArguments();
    args.add(getStrcatTypesCString(operands));
    args.addAll(operands);
    node.replaceWith(invocation);
}

Example 23 with Expression

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

the class OperatorRewriter method rewriteStringAppend.

private void rewriteStringAppend(Assignment node) {
    List<Expression> operands = getStringAppendOperands(node);
    Expression lhs = node.getLeftHandSide();
    TypeMirror lhsType = lhs.getTypeMirror();
    String funcName = "JreStrAppend" + translationUtil.getOperatorFunctionModifier(lhs);
    FunctionElement element = new FunctionElement(funcName, TypeUtil.ID_TYPE, null).addParameters(TypeUtil.ID_PTR_TYPE, TypeUtil.NATIVE_CHAR_PTR).setIsVarargs(true);
    FunctionInvocation invocation = new FunctionInvocation(element, lhsType);
    List<Expression> args = invocation.getArguments();
    args.add(new PrefixExpression(new PointerType(lhsType), PrefixExpression.Operator.ADDRESS_OF, TreeUtil.remove(lhs)));
    args.add(getStrcatTypesCString(operands));
    args.addAll(operands);
    node.replaceWith(invocation);
}

Example 24 with Expression

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

the class OperatorRewriter method endVisit.

@Override
public void endVisit(InfixExpression node) {
    InfixExpression.Operator op = node.getOperator();
    TypeMirror nodeType = node.getTypeMirror();
    String funcName = getInfixFunction(op, nodeType);
    if (funcName != null) {
        Iterator<Expression> operandIter = node.getOperands().iterator();
        Expression leftOperand = operandIter.next();
        operandIter.remove();
        // translated here are all left-associative.
        while (operandIter.hasNext()) {
            Expression rightOperand = operandIter.next();
            operandIter.remove();
            FunctionElement element = new FunctionElement(funcName, nodeType, null).addParameters(leftOperand.getTypeMirror(), rightOperand.getTypeMirror());
            FunctionInvocation invocation = new FunctionInvocation(element, nodeType);
            List<Expression> args = invocation.getArguments();
            args.add(leftOperand);
            args.add(rightOperand);
            leftOperand = invocation;
        }
        node.replaceWith(leftOperand);
    } else if (op == InfixExpression.Operator.PLUS && typeUtil.isString(nodeType) && !isStringAppend(node.getParent())) {
        rewriteStringConcatenation(node);
    }
}

Example 25 with Expression

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

the class JavaToIOSMethodTranslator method visit.

@Override
public boolean visit(ClassInstanceCreation node) {
    // translate any embedded method invocations
    if (node.getExpression() != null) {
        node.getExpression().accept(this);
    }
    for (Expression e : node.getArguments()) {
        e.accept(this);
    }
    if (node.getAnonymousClassDeclaration() != null) {
        node.getAnonymousClassDeclaration().accept(this);
    }
    ExecutableElement method = node.getExecutableElement();
    String key = Mappings.getMethodKey(method, typeUtil);
    String selector = Mappings.STRING_CONSTRUCTOR_TO_METHOD_MAPPINGS.get(key);
    if (selector != null) {
        assert !node.hasRetainedResult();
        if (key.equals("java.lang.String.<init>(Ljava/lang/String;)V")) {
            // Special case: replace new String(constant) to constant (avoid clang warning).
            Expression arg = node.getArgument(0);
            if (arg instanceof StringLiteral) {
                node.replaceWith(arg.copy());
                return false;
            }
        }
        ExecutableElement newElement = GeneratedExecutableElement.newMappedMethod(selector, method);
        MethodInvocation newInvocation = new MethodInvocation(new ExecutablePair(newElement), new SimpleName(ElementUtil.getDeclaringClass(method)));
        TreeUtil.copyList(node.getArguments(), newInvocation.getArguments());
        node.replaceWith(newInvocation);
    }
    return true;
}