ink_codegen 5.1.1

// Copyright (C) Use Ink (UK) Ltd.
//
// 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
//
//     http://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 crate::GenerateCode;
use derive_more::From;
use ir::HexLiteral;
use proc_macro2::TokenStream as TokenStream2;
use quote::quote_spanned;

/// Generates code for the `selector_id!` macro.
#[derive(From)]
pub struct SelectorId<'a> {
    /// The contract to generate code for.
    macro_input: &'a ir::SelectorMacro<ir::marker::SelectorId>,
}

impl GenerateCode for SelectorId<'_> {
    /// Generates `selector_id!` macro code.
    fn generate_code(&self) -> TokenStream2 {
        let span = self.macro_input.input().span();
        let selector_id = self
            .macro_input
            .selector()
            .into_be_u32()
            .hex_padded_suffixed();
        quote_spanned!(span=> #selector_id)
    }
}

/// Generates code for the `selector_bytes!` macro.
#[derive(From)]
pub struct SelectorBytes<'a> {
    /// The contract to generate code for.
    macro_input: &'a ir::SelectorMacro<ir::marker::SelectorBytes>,
}

impl GenerateCode for SelectorBytes<'_> {
    /// Generates `selector_bytes!` macro code.
    fn generate_code(&self) -> TokenStream2 {
        let span = self.macro_input.input().span();
        let selector_bytes = self.macro_input.selector().hex_lits();
        quote_spanned!(span=> [ #( #selector_bytes ),* ] )
    }
}