Examples with VariableElement javax.lang.model.element.VariableElement used on opensource projects

Example 66 with VariableElement

use of javax.lang.model.element.VariableElement in project j2objc by google.

the class EnumRewriter method addValueOfMethod.

private void addValueOfMethod(EnumDeclaration node) {
    TypeElement type = node.getTypeElement();
    ExecutableElement method = ElementUtil.findMethod(type, "valueOf", "java.lang.String");
    assert method != null : "Can't find valueOf method on enum type.";
    String typeName = nameTable.getFullName(type);
    int numConstants = node.getEnumConstants().size();
    VariableElement nameParam = GeneratedVariableElement.newParameter("name", method.getParameters().get(0).asType(), method);
    MethodDeclaration methodDecl = new MethodDeclaration(method);
    methodDecl.addParameter(new SingleVariableDeclaration(nameParam));
    Block body = new Block();
    methodDecl.setBody(body);
    StringBuilder impl = new StringBuilder();
    if (numConstants > 0) {
        impl.append(UnicodeUtils.format("  for (int i = 0; i < %s; i++) {\n" + "    %s *e = %s_values_[i];\n" + "    if ([name isEqual:[e name]]) {\n" + "      return e;\n" + "    }\n" + "  }\n", numConstants, typeName, typeName));
    }
    impl.append("  @throw create_JavaLangIllegalArgumentException_initWithNSString_(name);\n" + "  return nil;");
    body.addStatement(new NativeStatement(impl.toString()));
    node.addBodyDeclaration(methodDecl);
}

Example 67 with VariableElement

use of javax.lang.model.element.VariableElement in project j2objc by google.

the class EnumRewriter method addNonArcInitialization.

private void addNonArcInitialization(EnumDeclaration node) {
    TypeElement type = node.getTypeElement();
    int baseTypeCount = 0;
    List<Statement> sizeStatements = new ArrayList<>();
    List<Statement> initStatements = new ArrayList<>();
    TypeMirror voidType = typeUtil.getVoid();
    VariableElement localEnum = GeneratedVariableElement.newLocalVar("e", TypeUtil.ID_TYPE, null);
    int i = 0;
    for (EnumConstantDeclaration constant : node.getEnumConstants()) {
        VariableElement varElement = constant.getVariableElement();
        String varName = ElementUtil.getName(varElement);
        ExecutableElement methodElement = constant.getExecutableElement();
        TypeElement valueType = ElementUtil.getDeclaringClass(methodElement);
        boolean isAnonymous = valueType != type;
        String classExpr = isAnonymous ? "[" + nameTable.getFullName(valueType) + " class]" : "self";
        String sizeName = "objSize" + (isAnonymous ? "_" + varName : "");
        if (isAnonymous) {
            sizeStatements.add(new NativeStatement(UnicodeUtils.format("size_t %s = class_getInstanceSize(%s);", sizeName, classExpr)));
            sizeStatements.add(new NativeStatement(UnicodeUtils.format("allocSize += %s;", sizeName)));
        } else {
            baseTypeCount++;
        }
        initStatements.add(new ExpressionStatement(new CommaExpression(new Assignment(new SimpleName(varElement), new Assignment(new SimpleName(localEnum), new NativeExpression(UnicodeUtils.format("objc_constructInstance(%s, (void *)ptr)", classExpr), type.asType()))), new NativeExpression("ptr += " + sizeName, voidType))));
        String initName = nameTable.getFullFunctionName(methodElement);
        FunctionElement initElement = new FunctionElement(initName, voidType, valueType).addParameters(valueType.asType()).addParameters(ElementUtil.asTypes(methodElement.getParameters()));
        FunctionInvocation initFunc = new FunctionInvocation(initElement, voidType);
        initFunc.addArgument(new SimpleName(localEnum));
        TreeUtil.copyList(constant.getArguments(), initFunc.getArguments());
        initFunc.addArgument(new StringLiteral(varName, typeUtil));
        initFunc.addArgument(new NumberLiteral(i++, typeUtil));
        initStatements.add(new ExpressionStatement(initFunc));
    }
    List<Statement> stmts = node.getClassInitStatements().subList(0, 0);
    if (baseTypeCount == 0) {
        stmts.add(new NativeStatement("size_t allocSize = 0;"));
    } else {
        stmts.add(new NativeStatement("size_t objSize = class_getInstanceSize(self);"));
        stmts.add(new NativeStatement(UnicodeUtils.format("size_t allocSize = %s * objSize;", baseTypeCount)));
    }
    stmts.addAll(sizeStatements);
    stmts.add(new NativeStatement("uintptr_t ptr = (uintptr_t)calloc(allocSize, 1);"));
    stmts.add(new VariableDeclarationStatement(localEnum, null));
    stmts.addAll(initStatements);
}

Example 68 with VariableElement

use of javax.lang.model.element.VariableElement in project j2objc by google.

the class Functionizer method makeFunction.

/**
   * Create an equivalent function declaration for a given method.
   */
private FunctionDeclaration makeFunction(MethodDeclaration method) {
    ExecutableElement elem = method.getExecutableElement();
    TypeElement declaringClass = ElementUtil.getDeclaringClass(elem);
    boolean isInstanceMethod = !ElementUtil.isStatic(elem) && !ElementUtil.isConstructor(elem);
    FunctionDeclaration function = new FunctionDeclaration(nameTable.getFullFunctionName(elem), elem.getReturnType());
    function.setJniSignature(signatureGenerator.createJniFunctionSignature(elem));
    function.setLineNumber(method.getLineNumber());
    if (!ElementUtil.isStatic(elem)) {
        VariableElement var = GeneratedVariableElement.newParameter(NameTable.SELF_NAME, declaringClass.asType(), null);
        function.addParameter(new SingleVariableDeclaration(var));
    }
    TreeUtil.copyList(method.getParameters(), function.getParameters());
    function.setModifiers(method.getModifiers() & Modifier.STATIC);
    if (ElementUtil.isPrivate(elem) || (isInstanceMethod && !ElementUtil.isDefault(elem))) {
        function.addModifiers(Modifier.PRIVATE);
    } else {
        function.addModifiers(Modifier.PUBLIC);
    }
    if (Modifier.isNative(method.getModifiers())) {
        function.addModifiers(Modifier.NATIVE);
        return function;
    }
    function.setBody(TreeUtil.remove(method.getBody()));
    if (ElementUtil.isStatic(elem)) {
        // Add class initialization invocation, since this may be the first use of this class.
        String initName = UnicodeUtils.format("%s_initialize", nameTable.getFullName(declaringClass));
        TypeMirror voidType = typeUtil.getVoid();
        FunctionElement initElement = new FunctionElement(initName, voidType, declaringClass);
        FunctionInvocation initCall = new FunctionInvocation(initElement, voidType);
        function.getBody().addStatement(0, new ExpressionStatement(initCall));
    } else {
        FunctionConverter.convert(function);
    }
    return function;
}

Example 69 with VariableElement

use of javax.lang.model.element.VariableElement in project j2objc by google.

the class Functionizer method addImplicitParameters.

private void addImplicitParameters(MethodDeclaration node, TypeElement type) {
    List<SingleVariableDeclaration> methodParams = node.getParameters().subList(0, 0);
    for (VariableElement param : captureInfo.getImplicitPrefixParams(type)) {
        methodParams.add(new SingleVariableDeclaration(param));
    }
    methodParams = node.getParameters();
    for (VariableElement param : captureInfo.getImplicitPostfixParams(type)) {
        methodParams.add(new SingleVariableDeclaration(param));
    }
}

Example 70 with VariableElement

use of javax.lang.model.element.VariableElement in project j2objc by google.

the class Functionizer method endVisit.

@Override
public void endVisit(SuperConstructorInvocation node) {
    ExecutableElement element = node.getExecutableElement();
    AbstractTypeDeclaration typeDecl = TreeUtil.getEnclosingType(node);
    TypeElement type = typeDecl.getTypeElement();
    FunctionElement funcElement = newFunctionElement(element);
    FunctionInvocation invocation = new FunctionInvocation(funcElement, typeUtil.getVoid());
    List<Expression> args = invocation.getArguments();
    args.add(new ThisExpression(ElementUtil.getDeclaringClass(element).asType()));
    if (typeDecl instanceof TypeDeclaration) {
        TypeDeclaration typeDeclaration = (TypeDeclaration) typeDecl;
        if (captureInfo.needsOuterParam(ElementUtil.getSuperclass(type))) {
            Expression outerArg = TreeUtil.remove(node.getExpression());
            args.add(outerArg != null ? outerArg : typeDeclaration.getSuperOuter().copy());
        }
        TreeUtil.moveList(typeDeclaration.getSuperCaptureArgs(), args);
    }
    TreeUtil.moveList(node.getArguments(), args);
    if (ElementUtil.isEnum(type)) {
        for (VariableElement param : captureInfo.getImplicitEnumParams()) {
            args.add(new SimpleName(param));
        }
    }
    node.replaceWith(new ExpressionStatement(invocation));
    assert funcElement.getParameterTypes().size() == args.size();
}