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fix multiple consequtive defs

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This commit is contained in:
Folkert 2021-02-02 15:26:00 +01:00
parent 95ebc8ded5
commit 2def201a9a
1 changed files with 11 additions and 11 deletions
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22
compiler/parse/src/expr.rs
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@ -511,10 +511,11 @@ fn equals_for_def<'a>() -> impl Parser<'a, ()> {
/// * A type annotation
/// * A type annotation followed on the next line by a pattern, an `=`, and an expression
pub fn def<'a>(min_indent: u16) -> impl Parser<'a, Def<'a>> {
// we should fix this backtracking!
attempt(
Attempting::Def,
map_with_arena!(
either!(annotated_body(min_indent), body(min_indent)),
either!(backtrackable(annotated_body(min_indent)), body(min_indent)),
to_def
),
)
@ -716,6 +717,12 @@ fn annotation_or_alias<'a>(
}
}
fn parse_defs<'a>(min_indent: u16) -> impl Parser<'a, Vec<'a, &'a Located<Def<'a>>>> {
let parse_def = move |a, s| space1_before(loc!(def(min_indent)), min_indent).parse(a, s);
zero_or_more!(allocated(parse_def))
}
fn parse_def_expr<'a>(
min_indent: u16,
def_start_col: u16,
@ -748,7 +755,6 @@ fn parse_def_expr<'a>(
// Indented more beyond the original indent of the entire def-expr.
let indented_more = def_start_col + 1;
dbg!("now we get here");
then(
attempt!(
Attempting::Def,
@ -762,10 +768,7 @@ fn parse_def_expr<'a>(
loc!(move |arena, state| parse_expr(indented_more, arena, state)),
and!(
// Optionally parse additional defs.
zero_or_more!(allocated(space1_before(
loc!(def(def_start_col)),
def_start_col,
))),
parse_defs(def_start_col),
// Parse the final expression that will be returned.
// It should be indented the same amount as the original.
space1_before(
@ -865,10 +868,8 @@ fn parse_def_signature<'a>(
// leading to an AnnotatedBody in this case
|_progress, type_ann, indent_level| map(
optional(and!(
backtrackable(
|a, s| dbg!(spaces_then_comment_or_newline().parse(a, s))
),
|a, s| dbg!(body_at_indent(indent_level).parse(a, s))
backtrackable(spaces_then_comment_or_newline()),
body_at_indent(indent_level)
)),
move |opt_body| (type_ann.clone(), opt_body)
)
@ -1585,7 +1586,6 @@ fn unary_negate_function_arg<'a>(min_indent: u16) -> impl Parser<'a, Located<Exp
),
),
move |arena, state, progress, (spaces, num_or_minus_char)| {
dbg!("parsed an arg?");
debug_assert_eq!(progress, MadeProgress);
match num_or_minus_char {