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    // Copyright 2013 The Rust Project Developers. See the COPYRIGHT
    // file at the top-level directory of this distribution and at
    // http://rust-lang.org/COPYRIGHT.
    //
    // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
    // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
    // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
    // option. This file may not be copied, modified, or distributed
    // except according to those terms.

    //! This is an internal module used by the ifmt! runtime. These structures are
    //! emitted to static arrays to precompile format strings ahead of time.
    //!
    //! These definitions are similar to their `ct` equivalents, but differ in that
    //! these can be statically allocated and are slightly optimized for the runtime
    #![allow(missing_debug_implementations)]

    #[derive(Copy, Clone)]
    pub struct Argument {
        pub position: Position,
        pub format: FormatSpec,
    }

    #[derive(Copy, Clone)]
    pub struct FormatSpec {
        pub fill: char,
        pub align: Alignment,
        pub flags: u32,
        pub precision: Count,
        pub width: Count,
    }

    /// Possible alignments that can be requested as part of a formatting directive.
    #[derive(Copy, Clone, PartialEq, Eq)]
    pub enum Alignment {
        /// Indication that contents should be left-aligned.
        Left,
        /// Indication that contents should be right-aligned.
        Right,
        /// Indication that contents should be center-aligned.
        Center,
        /// No alignment was requested.
        Unknown,
    }

    #[derive(Copy, Clone)]
    pub enum Count {
        Is(usize),
        Param(usize),
        NextParam,
        Implied,
    }

    #[derive(Copy, Clone)]
    pub enum Position {
        Next,
        At(usize),
    }

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