55 lines
1.4 KiB
Rust
55 lines
1.4 KiB
Rust
//! Literals.
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use super::*;
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use crate::color::RgbaColor;
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use crate::eval::DictKey;
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use crate::geom::Unit;
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/// A literal.
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#[derive(Debug, Clone, PartialEq)]
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pub enum Lit {
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/// A identifier literal: `left`.
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Ident(Ident),
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/// A boolean literal: `true`, `false`.
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Bool(bool),
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/// An integer literal: `120`.
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Int(i64),
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/// A floating-point literal: `1.2`, `10e-4`.
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Float(f64),
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/// A length literal: `12pt`, `3cm`.
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Length(f64, Unit),
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/// A percent literal: `50%`.
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///
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/// _Note_: `50%` is stored as `50.0` here, but as `0.5` in the
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/// corresponding [value](crate::geom::Relative).
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Percent(f64),
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/// A color literal: `#ffccee`.
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Color(RgbaColor),
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/// A string literal: `"hello!"`.
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Str(String),
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/// A dictionary literal: `(false, 12cm, greeting: "hi")`.
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Dict(LitDict),
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/// A content literal: `{*Hello* there!}`.
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Content(SynTree),
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}
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/// A dictionary literal: `(false, 12cm, greeting: "hi")`.
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#[derive(Debug, Default, Clone, PartialEq)]
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pub struct LitDict(pub Vec<LitDictEntry>);
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/// An entry in a dictionary literal: `false` or `greeting: "hi"`.
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#[derive(Debug, Clone, PartialEq)]
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pub struct LitDictEntry {
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/// The key of the entry if there was one: `greeting`.
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pub key: Option<Spanned<DictKey>>,
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/// The value of the entry: `"hi"`.
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pub expr: Spanned<Expr>,
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}
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impl LitDict {
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/// Create an empty dict literal.
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pub fn new() -> Self {
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Self::default()
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}
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}
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