67 lines
1.7 KiB
Rust
67 lines
1.7 KiB
Rust
// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! This is an internal module used by the ifmt! runtime. These structures are
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//! emitted to static arrays to precompile format strings ahead of time.
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//!
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//! These definitions are similar to their `ct` equivalents, but differ in that
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//! these can be statically allocated and are slightly optimized for the runtime
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#[allow(missing_doc)];
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#[doc(hidden)];
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use either::Either;
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use fmt::parse;
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use option::Option;
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pub enum Piece<'a> {
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String(&'a str),
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// FIXME(#8259): this shouldn't require the unit-value here
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CurrentArgument(()),
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Argument(Argument<'a>),
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}
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pub struct Argument<'a> {
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position: Position,
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format: FormatSpec,
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method: Option<&'a Method<'a>>
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}
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pub struct FormatSpec {
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fill: char,
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align: parse::Alignment,
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flags: uint,
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precision: Count,
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width: Count,
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}
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pub enum Count {
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CountIs(uint), CountIsParam(uint), CountIsNextParam, CountImplied,
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}
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pub enum Position {
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ArgumentNext, ArgumentIs(uint)
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}
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pub enum Method<'a> {
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Plural(Option<uint>, &'a [PluralArm<'a>], &'a [Piece<'a>]),
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Select(&'a [SelectArm<'a>], &'a [Piece<'a>]),
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}
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pub struct PluralArm<'a> {
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selector: Either<parse::PluralKeyword, uint>,
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result: &'a [Piece<'a>],
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}
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pub struct SelectArm<'a> {
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selector: &'a str,
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result: &'a [Piece<'a>],
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}
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