starlark_derive 0.6.0

/*
 * Copyright 2019 The Starlark in Rust Authors.
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

use gazebo::prelude::*;
use proc_macro2::TokenStream;
use quote::quote;
use syn::*;

// Is a type matching a given name
pub(crate) fn is_type_name(x: &Type, name: &str) -> bool {
    if let Type::Path(TypePath {
        path: Path { segments, .. },
        ..
    }) = x
    {
        if let Some(seg1) = segments.last() {
            return seg1.ident == name;
        }
    }
    false
}

pub(crate) fn ident_string(x: &Ident) -> String {
    x.to_string().trim_start_match("r#").to_owned()
}

pub(crate) fn mut_token(x: bool) -> TokenStream {
    if x {
        quote! {mut}
    } else {
        quote! {}
    }
}