63 lines
1.2 KiB
Rust
63 lines
1.2 KiB
Rust
use crate::span::{HasSpan, Span};
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use super::{BoundedSeparated, Expr, Ident, Space};
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// TODO Make table patterns recursive
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#[derive(Debug, Clone)]
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pub enum TablePatternElem {
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/// `foo`
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Positional(Ident),
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/// `foo: bar`
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///
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/// Structure: `name s0 : s1 ident`
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Named {
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name: Ident,
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s0: Space,
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s1: Space,
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ident: Ident,
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span: Span,
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},
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}
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impl HasSpan for TablePatternElem {
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fn span(&self) -> Span {
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match self {
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Self::Positional(ident) => ident.span(),
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Self::Named { span, .. } => *span,
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}
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}
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}
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/// `{ foo, bar: baz }`
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///
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/// Structure: `{ s0 elems s1 }`
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#[derive(Debug, Clone)]
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pub struct TablePattern(pub BoundedSeparated<TablePatternElem>);
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impl HasSpan for TablePattern {
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fn span(&self) -> Span {
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self.0.span()
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}
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}
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/// - `{ foo, bar: baz } = a`
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/// - `local { foo, bar: baz } = a`
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///
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/// Structure: `local pattern s0 = s1 value`
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#[derive(Debug, Clone)]
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pub struct TableDestr {
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pub local: Option<Space>,
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pub pattern: TablePattern,
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pub s0: Space,
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pub s1: Space,
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pub value: Box<Expr>,
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pub span: Span,
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}
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impl HasSpan for TableDestr {
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fn span(&self) -> Span {
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self.span
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}
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}
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