leo-core 1.6.3

Core library functions for the Leo programming language
Documentation 
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// Copyright (C) 2019-2023 Aleo Systems Inc.
// This file is part of the Leo library.

// The Leo library is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// The Leo library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with the Leo library. If not, see <https://www.gnu.org/licenses/>.

use crate::algorithms::CoreFunction;
use leo_ast::{IntegerType, Type};

pub struct Pedersen64Hash;

impl CoreFunction for Pedersen64Hash {
    const NUM_ARGS: usize = 1;

    fn first_arg_is_allowed_type(type_: &Type) -> bool {
        matches!(
            type_,
            Type::Boolean
                | Type::Integer(IntegerType::I8)
                | Type::Integer(IntegerType::I16)
                | Type::Integer(IntegerType::I32)
                | Type::Integer(IntegerType::I64)
                | Type::Integer(IntegerType::U8)
                | Type::Integer(IntegerType::U16)
                | Type::Integer(IntegerType::U32)
                | Type::Integer(IntegerType::U64)
                | Type::String
        )
    }

    fn return_type() -> Type {
        Type::Field
    }
}

pub struct Pedersen64Commit;

impl CoreFunction for Pedersen64Commit {
    const NUM_ARGS: usize = 2;

    fn first_arg_is_allowed_type(type_: &Type) -> bool {
        matches!(
            type_,
            Type::Boolean
                | Type::Integer(IntegerType::I8)
                | Type::Integer(IntegerType::I16)
                | Type::Integer(IntegerType::I32)
                | Type::Integer(IntegerType::I64)
                | Type::Integer(IntegerType::U8)
                | Type::Integer(IntegerType::U16)
                | Type::Integer(IntegerType::U32)
                | Type::Integer(IntegerType::U64)
                | Type::String
        )
    }

    fn second_arg_is_allowed_type(type_: &Type) -> bool {
        matches!(type_, Type::Scalar)
    }

    fn return_type() -> Type {
        Type::Group
    }
}

pub struct Pedersen128Hash;

impl CoreFunction for Pedersen128Hash {
    const NUM_ARGS: usize = 1;

    fn first_arg_is_allowed_type(type_: &Type) -> bool {
        matches!(type_, Type::Boolean | Type::Integer(_) | Type::String)
    }

    fn return_type() -> Type {
        Type::Field
    }
}

pub struct Pedersen128Commit;

impl CoreFunction for Pedersen128Commit {
    const NUM_ARGS: usize = 2;

    fn first_arg_is_allowed_type(type_: &Type) -> bool {
        matches!(type_, Type::Boolean | Type::Integer(_) | Type::String)
    }

    fn second_arg_is_allowed_type(type_: &Type) -> bool {
        matches!(type_, Type::Scalar)
    }

    fn return_type() -> Type {
        Type::Group
    }
}