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New package header syntax

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Implements the new package header syntax as discussed in Zulip [1].

package [Csv] {
    parser: "../parser/main.roc"
}

Old headers still parse and are automatically upgraded to the new
syntax by the formatter.

[1] 418444862
This commit is contained in:
Agus Zubiaga 2024-03-04 19:58:22 -03:00
parent 8dedd9f03c
commit e3b600c282
No known key found for this signature in database
16 changed files with 169 additions and 132 deletions
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46
crates/compiler/fmt/src/module.rs
View file

@ -5,7 +5,7 @@ use crate::spaces::RemoveSpaces;
use crate::spaces::{fmt_comments_only, fmt_default_spaces, fmt_spaces, NewlineAt, INDENT};
use crate::Buf;
use bumpalo::Bump;
use roc_parse::ast::{Collection, Header, Module, Spaced, Spaces};
use roc_parse::ast::{Collection, CommentOrNewline, Header, Module, Spaced, Spaces};
use roc_parse::header::{
AppHeader, ExposedName, ExposesKeyword, GeneratesKeyword, HostedHeader, ImportsEntry,
ImportsKeyword, Keyword, KeywordItem, ModuleHeader, ModuleName, PackageEntry, PackageHeader,
@ -177,15 +177,8 @@ pub fn fmt_module_header<'a>(buf: &mut Buf, header: &'a ModuleHeader<'a>) {
buf.indent(0);
buf.push_str("module");
if header.before_exposes.iter().all(|c| c.is_newline()) {
buf.spaces(1);
fmt_exposes(buf, header.exposes, 0);
} else {
let indent = INDENT;
fmt_default_spaces(buf, header.before_exposes, indent);
fmt_exposes(buf, header.exposes, indent);
};
let indent = fmt_spaces_with_outdent(buf, header.before_exposes, INDENT);
fmt_exposes(buf, header.exposes, indent);
}
pub fn fmt_hosted_header<'a>(buf: &mut Buf, header: &'a HostedHeader<'a>) {
@ -209,37 +202,32 @@ pub fn fmt_app_header<'a>(buf: &mut Buf, header: &'a AppHeader<'a>) {
buf.indent(0);
buf.push_str("app");
let indent = INDENT;
let indent = fmt_spaces_with_outdent(buf, header.before_provides, INDENT);
fmt_exposes(buf, header.provides, indent);
if header.before_provides.iter().all(|c| c.is_newline()) {
buf.spaces(1);
fmt_exposes(buf, header.provides, 0);
} else {
fmt_default_spaces(buf, header.before_provides, indent);
fmt_exposes(buf, header.provides, indent);
}
let indent = fmt_spaces_with_outdent(buf, header.before_packages, INDENT);
fmt_packages(buf, header.packages.value, indent);
}
if header.before_packages.iter().all(|c| c.is_newline()) {
pub fn fmt_spaces_with_outdent(buf: &mut Buf, spaces: &[CommentOrNewline], indent: u16) -> u16 {
if spaces.iter().all(|c| c.is_newline()) {
buf.spaces(1);
fmt_packages(buf, header.packages.value, 0);
0
} else {
fmt_default_spaces(buf, header.before_packages, indent);
fmt_packages(buf, header.packages.value, indent);
fmt_default_spaces(buf, spaces, indent);
indent
}
}
pub fn fmt_package_header<'a>(buf: &mut Buf, header: &'a PackageHeader<'a>) {
buf.indent(0);
buf.push_str("package");
let indent = INDENT;
fmt_default_spaces(buf, header.before_name, indent);
fmt_package_name(buf, header.name.value, indent);
let indent = fmt_spaces_with_outdent(buf, header.before_exposes, INDENT);
fmt_exposes(buf, header.exposes, indent);
header.exposes.keyword.format(buf, indent);
fmt_exposes(buf, header.exposes.item, indent);
header.packages.keyword.format(buf, indent);
fmt_packages(buf, header.packages.item, indent);
let indent = fmt_spaces_with_outdent(buf, header.before_packages, INDENT);
fmt_packages(buf, header.packages.value, indent);
}
pub fn fmt_platform_header<'a>(buf: &mut Buf, header: &'a PlatformHeader<'a>) {

4
crates/compiler/fmt/src/spaces.rs
View file

@ -299,9 +299,9 @@ impl<'a> RemoveSpaces<'a> for Module<'a> {
.remove_spaces(arena),
}),
Header::Package(header) => Header::Package(PackageHeader {
before_name: &[],
name: header.name.remove_spaces(arena),
before_exposes: &[],
exposes: header.exposes.remove_spaces(arena),
before_packages: &[],
packages: header.packages.remove_spaces(arena),
}),
Header::Platform(header) => Header::Platform(PlatformHeader {