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Parse binary operators

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For now, they're all left associative.
This commit is contained in:
Joscha 2022-11-19 12:40:49 +01:00
parent 63f8026007
commit 408219073a
10 changed files with 99 additions and 39 deletions
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8
src/parser/prefix.rs
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@ -35,14 +35,14 @@ impl Prefix {
}
}
fn prefix_neg() -> impl Parser<char, Prefix, Error = Error> {
fn prefix_neg() -> impl Parser<char, Prefix, Error = Error> + Clone {
just('-')
.map_with_span(|_, span| span)
.then(space())
.map(|(minus, s0)| Prefix::Neg { minus, s0 })
}
fn prefix_not() -> impl Parser<char, Prefix, Error = Error> {
fn prefix_not() -> impl Parser<char, Prefix, Error = Error> + Clone {
text::keyword("not")
.map_with_span(|_, span| span)
.then(space())
@ -50,8 +50,8 @@ fn prefix_not() -> impl Parser<char, Prefix, Error = Error> {
}
pub fn prefixed(
suffixed: impl Parser<char, Expr, Error = Error>,
) -> impl Parser<char, Expr, Error = Error> {
suffixed: impl Parser<char, Expr, Error = Error> + Clone,
) -> impl Parser<char, Expr, Error = Error> + Clone {
let prefix = prefix_neg()
.or(prefix_not())
.map_with_span(|prefix, span| (prefix, span));