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change provides ... to

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This commit is contained in:
Folkert 2021-03-08 16:15:38 +01:00
parent 905301bf96
commit 784e3ddac4
2 changed files with 39 additions and 38 deletions
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65
compiler/parse/src/module.rs
View file

@ -3,14 +3,13 @@ use crate::blankspace::{space0, space0_around, space0_before, space0_e, space1};
use crate::expr::def;
use crate::header::{
package_entry, package_or_path, AppHeader, Effects, ExposesEntry, ImportsEntry,
InterfaceHeader, ModuleName, PackageEntry, PackageName, PackageOrPath, PlatformHeader, To,
TypedIdent,
InterfaceHeader, ModuleName, PackageEntry, PackageName, PlatformHeader, To, TypedIdent,
};
use crate::ident::{lowercase_ident, unqualified_ident, uppercase_ident};
use crate::parser::Progress::{self, *};
use crate::parser::{
self, ascii_char, ascii_string, backtrackable, end_of_file, loc, optional, peek_utf8_char,
peek_utf8_char_at, specialize, unexpected, unexpected_eof, word1, EHeader, EProvides, Either,
peek_utf8_char_at, specialize, unexpected, unexpected_eof, word1, EHeader, EProvides,
ParseResult, Parser, State, SyntaxError,
};
use crate::string_literal;
@ -322,46 +321,44 @@ struct ProvidesTo<'a> {
#[inline(always)]
fn provides_to<'a>() -> impl Parser<'a, ProvidesTo<'a>, SyntaxError<'a>> {
specialize(
|e, r, c| SyntaxError::Header(EHeader::Provides(e, r, c)),
provides_to_help(),
)
}
fn provides_to_package<'a>() -> impl Parser<'a, To<'a>, SyntaxError<'a>> {
one_of![
map!(lowercase_ident(), To::ExistingPackage),
map!(package_or_path(), To::NewPackage)
]
}
#[inline(always)]
fn provides_to_help<'a>() -> impl Parser<'a, ProvidesTo<'a>, EProvides> {
let min_indent = 1;
map!(
and!(
provides_without_to_help(),
and!(
skip_second!(backtrackable(space1(1)), ascii_string("provides")),
space1(1)
),
and!(
collection!(
ascii_char(b'['),
loc!(map!(unqualified_ident(), ExposesEntry::Exposed)),
ascii_char(b','),
ascii_char(b']'),
1
),
and!(
space1(1),
space0_e(min_indent, EProvides::Space, EProvides::IndentTo),
skip_first!(
ascii_string("to"),
crate::parser::keyword_e("to", EProvides::To),
and!(
space1(1),
loc!(either!(lowercase_ident(), package_or_path()))
)
space0_e(min_indent, EProvides::Space, EProvides::IndentPackage),
loc!(specialize(
|_, r, c| EProvides::Package(r, c),
provides_to_package()
))
)
)
)
),
|(
(before_provides_keyword, after_provides_keyword),
(entries, (before_to_keyword, (after_to_keyword, loc_to))),
((before_provides_keyword, after_provides_keyword), entries),
(before_to_keyword, (after_to_keyword, to)),
)| {
let loc_to: Located<Either<&'a str, PackageOrPath<'a>>> = loc_to;
let to_val = match loc_to.value {
Either::First(pkg) => To::ExistingPackage(pkg),
Either::Second(pkg) => To::NewPackage(pkg),
};
let to = Located {
value: to_val,
region: loc_to.region,
};
ProvidesTo {
entries,
to,
@ -402,8 +399,8 @@ fn provides_without_to_help<'a>() -> impl Parser<
and!(
and!(
skip_second!(
space0_e(min_indent, EProvides::Space, EProvides::IndentKeyword),
crate::parser::keyword_e("provides", EProvides::Keyword)
space0_e(min_indent, EProvides::Space, EProvides::IndentProvides),
crate::parser::keyword_e("provides", EProvides::Provides)
),
space0_e(min_indent, EProvides::Space, EProvides::IndentListStart)
),

8
compiler/parse/src/parser.rs
View file

@ -345,13 +345,17 @@ pub enum EHeader {
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum EProvides {
Keyword(Row, Col),
IndentKeyword(Row, Col),
Provides(Row, Col),
To(Row, Col),
IndentProvides(Row, Col),
IndentTo(Row, Col),
IndentListStart(Row, Col),
IndentListEnd(Row, Col),
IndentPackage(Row, Col),
ListStart(Row, Col),
ListEnd(Row, Col),
Identifier(Row, Col),
Package(Row, Col),
Space(BadInputError, Row, Col),
}