39 lines
1002 B
Rust
39 lines
1002 B
Rust
//! - [struct@Span]: Stores the start and end [struct@Loc] of a notable AST node
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//! - [struct@Loc]: Stores the line/column of a notable AST node
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#![allow(non_snake_case)]
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/// Stores the start and end [locations](struct@Loc) within the token stream
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#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
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pub struct Span {
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pub head: Loc,
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pub tail: Loc,
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}
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pub fn Span(head: Loc, tail: Loc) -> Span {
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Span { head, tail }
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}
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/// Stores a read-only (line, column) location in a token stream
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#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
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pub struct Loc {
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line: u32,
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col: u32,
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}
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pub fn Loc(line: u32, col: u32) -> Loc {
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Loc { line, col }
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}
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impl Loc {
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pub fn line(self) -> u32 {
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self.line
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}
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pub fn col(self) -> u32 {
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self.col
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}
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}
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impl std::fmt::Display for Loc {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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let Loc { line, col } = self;
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write!(f, "{line}:{col}:")
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}
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}
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