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hygiene 2.0

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This commit is contained in:
Lukas Wirth 2023-11-17 19:07:31 +01:00
parent e36b3f7b8c
commit 05f375eae2
43 changed files with 758 additions and 458 deletions
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17
crates/hir-def/src/expander.rs
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@ -7,11 +7,12 @@ use base_db::{
use cfg::CfgOptions;
use drop_bomb::DropBomb;
use hir_expand::{
attrs::RawAttrs, hygiene::Hygiene, mod_path::ModPath, ExpandError, ExpandResult, HirFileId,
InFile, MacroCallId, UnresolvedMacro,
attrs::RawAttrs, mod_path::ModPath, ExpandError, ExpandResult, HirFileId, InFile, MacroCallId,
SpanMap, UnresolvedMacro,
};
use limit::Limit;
use syntax::{ast, Parse, SyntaxNode};
use triomphe::Arc;
use crate::{
attr::Attrs, db::DefDatabase, lower::LowerCtx, macro_id_to_def_id, path::Path, AsMacroCall,
@ -21,7 +22,7 @@ use crate::{
#[derive(Debug)]
pub struct Expander {
cfg_options: CfgOptions,
hygiene: Hygiene,
hygiene: Arc<SpanMap>,
krate: CrateId,
pub(crate) current_file_id: HirFileId,
pub(crate) module: ModuleId,
@ -44,7 +45,7 @@ impl Expander {
recursion_depth: 0,
recursion_limit,
cfg_options: db.crate_graph()[module.krate].cfg_options.clone(),
hygiene: Hygiene::new(db.upcast(), current_file_id),
hygiene: db.span_map(current_file_id),
krate: module.krate,
}
}
@ -98,7 +99,7 @@ impl Expander {
}
pub fn exit(&mut self, db: &dyn DefDatabase, mut mark: Mark) {
self.hygiene = Hygiene::new(db.upcast(), mark.file_id);
self.hygiene = db.span_map(mark.file_id);
self.current_file_id = mark.file_id;
if self.recursion_depth == u32::MAX {
// Recursion limit has been reached somewhere in the macro expansion tree. Reset the
@ -113,7 +114,7 @@ impl Expander {
}
pub fn ctx<'a>(&self, db: &'a dyn DefDatabase) -> LowerCtx<'a> {
LowerCtx::new(db, &self.hygiene, self.current_file_id)
LowerCtx::new(db, self.hygiene.clone(), self.current_file_id)
}
pub(crate) fn to_source<T>(&self, value: T) -> InFile<T> {
@ -143,7 +144,7 @@ impl Expander {
}
pub(crate) fn parse_path(&mut self, db: &dyn DefDatabase, path: ast::Path) -> Option<Path> {
let ctx = LowerCtx::new(db, &self.hygiene, self.current_file_id);
let ctx = LowerCtx::new(db, self.hygiene.clone(), self.current_file_id);
Path::from_src(path, &ctx)
}
@ -187,7 +188,7 @@ impl Expander {
let parse = value.cast::<T>()?;
self.recursion_depth += 1;
self.hygiene = Hygiene::new(db.upcast(), file_id);
self.hygiene = db.span_map(file_id);
let old_file_id = std::mem::replace(&mut self.current_file_id, file_id);
let mark = Mark {
file_id: old_file_id,