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

Example 6 with NativeStatement

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

the class OcniExtractor method endVisit.

@Override
public void endVisit(MethodDeclaration node) {
    int modifiers = node.getModifiers();
    if (Modifier.isNative(modifiers)) {
        NativeStatement nativeStmt = extractNativeStatement(node);
        if (nativeStmt != null) {
            Block body = new Block();
            body.addStatement(nativeStmt);
            node.setBody(body);
            node.removeModifiers(Modifier.NATIVE);
        }
    }
    if (Modifier.isSynchronized(modifiers)) {
        TypeElement declaringClass = ElementUtil.getDeclaringClass(node.getExecutableElement());
        SynchronizedStatement syncStmt = new SynchronizedStatement(Modifier.isStatic(modifiers) ? new TypeLiteral(declaringClass.asType(), typeUtil) : new ThisExpression(declaringClass.asType()));
        syncStmt.setBody(TreeUtil.remove(node.getBody()));
        Block newBody = new Block();
        newBody.addStatement(syncStmt);
        node.setBody(newBody);
        node.removeModifiers(Modifier.SYNCHRONIZED);
    }
}

Example 7 with NativeStatement

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

the class AbstractMethodRewriter method endVisit.

@Override
public void endVisit(MethodDeclaration node) {
    ExecutableElement methodElement = node.getExecutableElement();
    if (!ElementUtil.isAbstract(methodElement)) {
        return;
    }
    // JDT only adds the abstract bit to a MethodDeclaration node's modifiers if the abstract
    // method is from a class. Since we want our code generator to go over an interface's
    // method nodes for default method support and skip abstract methods, we add the bit if the
    // method is from an interface.
    TypeElement declaringClass = ElementUtil.getDeclaringClass(methodElement);
    if (declaringClass.getKind().isInterface()) {
        node.addModifiers(java.lang.reflect.Modifier.ABSTRACT);
        return;
    }
    // we skip the stubbing out.
    if (!translationUtil.needsReflection(declaringClass)) {
        unit.setHasIncompleteProtocol();
        unit.setHasIncompleteImplementation();
        return;
    }
    Block body = new Block();
    // Generate a body which throws a NSInvalidArgumentException.
    String bodyCode = "// can't call an abstract method\n" + "[self doesNotRecognizeSelector:_cmd];";
    if (!TypeUtil.isVoid(node.getReturnTypeMirror())) {
        // Never executes, but avoids a gcc warning.
        bodyCode += "\nreturn 0;";
    }
    body.addStatement(new NativeStatement(bodyCode));
    node.setBody(body);
    node.removeModifiers(java.lang.reflect.Modifier.ABSTRACT);
}

Example 8 with NativeStatement

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

the class AnnotationRewriter method addConstructor.

private void addConstructor(AnnotationTypeDeclaration node, Map<ExecutableElement, VariableElement> fieldElements) {
    TypeElement type = node.getTypeElement();
    String typeName = nameTable.getFullName(type);
    FunctionDeclaration constructorDecl = new FunctionDeclaration("create_" + typeName, type.asType());
    Block constructorBody = new Block();
    constructorDecl.setBody(constructorBody);
    List<Statement> stmts = constructorBody.getStatements();
    stmts.add(new NativeStatement(UnicodeUtils.format("%s *self = AUTORELEASE([[%s alloc] init]);", typeName, typeName)));
    for (ExecutableElement memberElement : ElementUtil.getSortedAnnotationMembers(type)) {
        TypeMirror memberType = memberElement.getReturnType();
        String propName = NameTable.getAnnotationPropertyName(memberElement);
        String fieldName = nameTable.getVariableShortName(fieldElements.get(memberElement));
        VariableElement param = GeneratedVariableElement.newParameter(propName, memberType, null);
        constructorDecl.addParameter(new SingleVariableDeclaration(param));
        String rhs = TypeUtil.isReferenceType(memberType) ? "RETAIN_(" + propName + ")" : propName;
        stmts.add(new NativeStatement("self->" + fieldName + " = " + rhs + ";"));
    }
    stmts.add(new NativeStatement("return self;"));
    node.addBodyDeclaration(constructorDecl);
}

Example 9 with NativeStatement

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

the class SuperMethodInvocationRewriter method endVisit.

@Override
public void endVisit(CompilationUnit unit) {
    for (SuperMethodElementPair superMethod : superMethods) {
        String funcName = getSuperFunctionName(superMethod);
        String signature = getSuperFunctionSignature(superMethod.method);
        // Add declarations for the function pointers to call.
        unit.addNativeBlock(NativeDeclaration.newOuterDeclaration(null, "static " + UnicodeUtils.format(signature, funcName) + ";"));
        // Look up the implementations in the static initialization.
        AbstractTypeDeclaration typeNode = typeMap.get(superMethod.type);
        assert typeNode != null : "Type is expected to be in this compilation unit";
        String superclassName = nameTable.getFullName(ElementUtil.getSuperclass(superMethod.type));
        typeNode.addClassInitStatement(0, new NativeStatement(UnicodeUtils.format("%s = (%s)[%s instanceMethodForSelector:@selector(%s)];", funcName, UnicodeUtils.format(signature, ""), superclassName, nameTable.getMethodSelector(superMethod.method))));
    }
}

Example 10 with NativeStatement

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

the class EnumRewriter method addSimpleNonArcInitialization.

private void addSimpleNonArcInitialization(EnumDeclaration node) {
    List<EnumConstantDeclaration> constants = node.getEnumConstants();
    List<Statement> stmts = node.getClassInitStatements().subList(0, 0);
    stmts.add(new NativeStatement("size_t objSize = class_getInstanceSize(self);"));
    stmts.add(new NativeStatement(UnicodeUtils.format("size_t allocSize = %s * objSize;", constants.size())));
    stmts.add(new NativeStatement("uintptr_t ptr = (uintptr_t)calloc(allocSize, 1);"));
    VariableElement localEnum = GeneratedVariableElement.newLocalVar("e", TypeUtil.ID_TYPE, null);
    stmts.add(new VariableDeclarationStatement(localEnum, null));
    StringBuffer sb = new StringBuffer("id names[] = {\n  ");
    for (EnumConstantDeclaration constant : node.getEnumConstants()) {
        sb.append("@\"" + ElementUtil.getName(constant.getVariableElement()) + "\", ");
    }
    sb.append("\n};");
    stmts.add(new NativeStatement(sb.toString()));
    TypeMirror intType = typeUtil.getInt();
    GeneratedVariableElement loopCounterElement = GeneratedVariableElement.newLocalVar("i", intType, TreeUtil.getEnclosingElement(node));
    VariableDeclarationExpression loopCounter = new VariableDeclarationExpression().setType(Type.newType(loopCounterElement.asType())).addFragment(new VariableDeclarationFragment(loopCounterElement, TreeUtil.newLiteral(0, typeUtil)));
    Expression loopTest = new InfixExpression().setOperator(InfixExpression.Operator.LESS).setTypeMirror(intType).addOperand(new SimpleName(loopCounterElement)).addOperand(TreeUtil.newLiteral(constants.size(), typeUtil));
    Expression loopUpdater = new PostfixExpression(loopCounterElement, PostfixExpression.Operator.INCREMENT);
    Block loopBody = new Block();
    stmts.add(new ForStatement().addInitializer(loopCounter).setExpression(loopTest).addUpdater(loopUpdater).setBody(loopBody));
    String enumClassName = nameTable.getFullName(node.getTypeElement());
    loopBody.addStatement(new NativeStatement("(" + enumClassName + "_values_[i] = e = objc_constructInstance(self, (void *)ptr), ptr += objSize);"));
    loopBody.addStatement(new NativeStatement(enumClassName + "_initWithNSString_withInt_(e, names[i], i);"));
}