Examples with ConstructorNode org.codehaus.groovy.ast.ConstructorNode used on opensource projects

Example 56 with ConstructorNode

use of org.codehaus.groovy.ast.ConstructorNode in project groovy by apache.

the class SingletonASTTransformation method createConstructor.

private void createConstructor(ClassNode classNode, FieldNode field, String propertyName, boolean isStrict) {
    final List<ConstructorNode> cNodes = classNode.getDeclaredConstructors();
    ConstructorNode foundNoArg = null;
    for (ConstructorNode cNode : cNodes) {
        final Parameter[] parameters = cNode.getParameters();
        if (parameters == null || parameters.length == 0) {
            foundNoArg = cNode;
            break;
        }
    }
    if (isStrict && !cNodes.isEmpty()) {
        for (ConstructorNode cNode : cNodes) {
            addError("@Singleton didn't expect to find one or more additional constructors: remove constructor(s) or set strict=false", cNode);
        }
    }
    if (foundNoArg == null) {
        final BlockStatement body = new BlockStatement();
        body.addStatement(ifS(notNullX(varX(field)), throwS(ctorX(make(RuntimeException.class), args(constX("Can't instantiate singleton " + classNode.getName() + ". Use " + classNode.getName() + "." + propertyName))))));
        classNode.addConstructor(new ConstructorNode(ACC_PRIVATE, body));
    }
}

Example 57 with ConstructorNode

use of org.codehaus.groovy.ast.ConstructorNode in project groovy by apache.

the class BaseScriptASTTransformation method changeBaseScriptType.

private void changeBaseScriptType(final AnnotatedNode parent, final ClassNode cNode, final ClassNode baseScriptType) {
    if (!cNode.isScriptBody()) {
        addError("Annotation " + MY_TYPE_NAME + " can only be used within a Script.", parent);
        return;
    }
    if (!baseScriptType.isScript()) {
        addError("Declared type " + baseScriptType + " does not extend groovy.lang.Script class!", parent);
        return;
    }
    cNode.setSuperClass(baseScriptType);
    // Method in base script that will contain the script body code.
    MethodNode runScriptMethod = ClassHelper.findSAM(baseScriptType);
    // If they want to use a name other than than "run", then make the change.
    if (isCustomScriptBodyMethod(runScriptMethod)) {
        MethodNode defaultMethod = cNode.getDeclaredMethod("run", Parameter.EMPTY_ARRAY);
        // The reason is that our transform is getting called more than once sometimes.  
        if (defaultMethod != null) {
            cNode.removeMethod(defaultMethod);
            MethodNode methodNode = new MethodNode(runScriptMethod.getName(), runScriptMethod.getModifiers() & ~ACC_ABSTRACT, runScriptMethod.getReturnType(), runScriptMethod.getParameters(), runScriptMethod.getExceptions(), defaultMethod.getCode());
            // The AST node metadata has the flag that indicates that this method is a script body.
            // It may also be carrying data for other AST transforms.
            methodNode.copyNodeMetaData(defaultMethod);
            cNode.addMethod(methodNode);
        }
    }
    // the constructors for our script class have already run.
    if (cNode.getSuperClass().getDeclaredConstructor(CONTEXT_CTOR_PARAMETERS) == null) {
        ConstructorNode orphanedConstructor = cNode.getDeclaredConstructor(CONTEXT_CTOR_PARAMETERS);
        cNode.removeConstructor(orphanedConstructor);
    }
}

Example 58 with ConstructorNode

use of org.codehaus.groovy.ast.ConstructorNode in project groovy by apache.

the class ImmutableASTTransformation method validateConstructors.

private boolean validateConstructors(ClassNode cNode) {
    List<ConstructorNode> declaredConstructors = cNode.getDeclaredConstructors();
    for (ConstructorNode constructorNode : declaredConstructors) {
        // allow constructors added by other transforms if flagged as safe
        Object nodeMetaData = constructorNode.getNodeMetaData(IMMUTABLE_SAFE_FLAG);
        if (nodeMetaData != null && ((Boolean) nodeMetaData)) {
            continue;
        }
        // TODO: allow constructors which only call provided constructor?
        addError("Explicit constructors not allowed for " + MY_TYPE_NAME + " class: " + cNode.getNameWithoutPackage(), constructorNode);
        return false;
    }
    return true;
}

Example 59 with ConstructorNode

use of org.codehaus.groovy.ast.ConstructorNode in project groovy by apache.

the class ImmutableASTTransformation method createNoArgConstructor.

private static void createNoArgConstructor(ClassNode cNode) {
    Statement body = stmt(ctorX(ClassNode.THIS, args(new MapExpression())));
    doAddConstructor(cNode, new ConstructorNode(ACC_PUBLIC, Parameter.EMPTY_ARRAY, ClassNode.EMPTY_ARRAY, body));
}