bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/hir/src/semantics.rs')
-rw-r--r--crates/hir/src/semantics.rs219
1 files changed, 152 insertions, 67 deletions
diff --git a/crates/hir/src/semantics.rs b/crates/hir/src/semantics.rs
index aea22545ed..e01774650b 100644
--- a/crates/hir/src/semantics.rs
+++ b/crates/hir/src/semantics.rs
@@ -24,7 +24,7 @@ use hir_expand::{
attrs::collect_attrs,
builtin::{BuiltinFnLikeExpander, EagerExpander},
db::ExpandDatabase,
- files::{FileRangeWrapper, InRealFile},
+ files::{FileRangeWrapper, HirFileRange, InRealFile},
inert_attr_macro::find_builtin_attr_idx,
mod_path::{ModPath, PathKind},
name::AsName,
@@ -262,6 +262,17 @@ impl<DB: HirDatabase> Semantics<'_, DB> {
self.imp.file_to_module_defs(file.into())
}
+ pub fn hir_file_to_module_def(&self, file: impl Into<HirFileId>) -> Option<Module> {
+ self.imp.hir_file_to_module_defs(file.into()).next()
+ }
+
+ pub fn hir_file_to_module_defs(
+ &self,
+ file: impl Into<HirFileId>,
+ ) -> impl Iterator<Item = Module> {
+ self.imp.hir_file_to_module_defs(file.into())
+ }
+
pub fn to_adt_def(&self, a: &ast::Adt) -> Option<Adt> {
self.imp.to_def(a)
}
@@ -357,6 +368,15 @@ impl<'db> SemanticsImpl<'db> {
tree
}
+ pub fn adjust_edition(&self, file_id: HirFileId) -> HirFileId {
+ if let Some(editioned_file_id) = file_id.file_id() {
+ self.attach_first_edition(editioned_file_id.file_id(self.db))
+ .map_or(file_id, Into::into)
+ } else {
+ file_id
+ }
+ }
+
pub fn find_parent_file(&self, file_id: HirFileId) -> Option<InFile<SyntaxNode>> {
match file_id {
HirFileId::FileId(file_id) => {
@@ -653,7 +673,7 @@ impl<'db> SemanticsImpl<'db> {
string: &ast::String,
) -> Option<Vec<(TextRange, Option<Either<PathResolution, InlineAsmOperand>>)>> {
let string_start = string.syntax().text_range().start();
- let token = self.wrap_token_infile(string.syntax().clone()).into_real_file().ok()?;
+ let token = self.wrap_token_infile(string.syntax().clone());
self.descend_into_macros_breakable(token, |token, _| {
(|| {
let token = token.value;
@@ -693,50 +713,95 @@ impl<'db> SemanticsImpl<'db> {
}
/// Retrieves the formatting part of the format_args! template string at the given offset.
+ ///
+ // FIXME: Type the return type
+ /// Returns the range (pre-expansion) in the string literal corresponding to the resolution,
+ /// absolute file range (post-expansion)
+ /// of the part in the format string, the corresponding string token and the resolution if it
+ /// exists.
+ // FIXME: Remove this in favor of `check_for_format_args_template_with_file`
pub fn check_for_format_args_template(
&self,
original_token: SyntaxToken,
offset: TextSize,
- ) -> Option<(TextRange, Option<Either<PathResolution, InlineAsmOperand>>)> {
- let string_start = original_token.text_range().start();
- let original_token = self.wrap_token_infile(original_token).into_real_file().ok()?;
- self.descend_into_macros_breakable(original_token, |token, _| {
- (|| {
- let token = token.value;
- self.resolve_offset_in_format_args(
- ast::String::cast(token)?,
- offset.checked_sub(string_start)?,
- )
- .map(|(range, res)| (range + string_start, res))
- })()
- .map_or(ControlFlow::Continue(()), ControlFlow::Break)
- })
+ ) -> Option<(
+ TextRange,
+ HirFileRange,
+ ast::String,
+ Option<Either<PathResolution, InlineAsmOperand>>,
+ )> {
+ let original_token =
+ self.wrap_token_infile(original_token).map(ast::String::cast).transpose()?;
+ self.check_for_format_args_template_with_file(original_token, offset)
+ }
+
+ /// Retrieves the formatting part of the format_args! template string at the given offset.
+ ///
+ // FIXME: Type the return type
+ /// Returns the range (pre-expansion) in the string literal corresponding to the resolution,
+ /// absolute file range (post-expansion)
+ /// of the part in the format string, the corresponding string token and the resolution if it
+ /// exists.
+ pub fn check_for_format_args_template_with_file(
+ &self,
+ original_token: InFile<ast::String>,
+ offset: TextSize,
+ ) -> Option<(
+ TextRange,
+ HirFileRange,
+ ast::String,
+ Option<Either<PathResolution, InlineAsmOperand>>,
+ )> {
+ let relative_offset =
+ offset.checked_sub(original_token.value.syntax().text_range().start())?;
+ self.descend_into_macros_breakable(
+ original_token.as_ref().map(|it| it.syntax().clone()),
+ |token, _| {
+ (|| {
+ let token = token.map(ast::String::cast).transpose()?;
+ self.resolve_offset_in_format_args(token.as_ref(), relative_offset).map(
+ |(range, res)| {
+ (
+ range + original_token.value.syntax().text_range().start(),
+ HirFileRange {
+ file_id: token.file_id,
+ range: range + token.value.syntax().text_range().start(),
+ },
+ token.value,
+ res,
+ )
+ },
+ )
+ })()
+ .map_or(ControlFlow::Continue(()), ControlFlow::Break)
+ },
+ )
}
fn resolve_offset_in_format_args(
&self,
- string: ast::String,
+ InFile { value: string, file_id }: InFile<&ast::String>,
offset: TextSize,
) -> Option<(TextRange, Option<Either<PathResolution, InlineAsmOperand>>)> {
debug_assert!(offset <= string.syntax().text_range().len());
let literal = string.syntax().parent().filter(|it| it.kind() == SyntaxKind::LITERAL)?;
let parent = literal.parent()?;
if let Some(format_args) = ast::FormatArgsExpr::cast(parent.clone()) {
- let source_analyzer = &self.analyze_no_infer(format_args.syntax())?;
- let format_args = self.wrap_node_infile(format_args);
+ let source_analyzer =
+ &self.analyze_impl(InFile::new(file_id, format_args.syntax()), None, false)?;
source_analyzer
- .resolve_offset_in_format_args(self.db, format_args.as_ref(), offset)
+ .resolve_offset_in_format_args(self.db, InFile::new(file_id, &format_args), offset)
.map(|(range, res)| (range, res.map(Either::Left)))
} else {
let asm = ast::AsmExpr::cast(parent)?;
- let source_analyzer = &self.analyze_no_infer(asm.syntax())?;
+ let source_analyzer =
+ self.analyze_impl(InFile::new(file_id, asm.syntax()), None, false)?;
let line = asm.template().position(|it| *it.syntax() == literal)?;
- let asm = self.wrap_node_infile(asm);
- source_analyzer.resolve_offset_in_asm_template(asm.as_ref(), line, offset).map(
- |(owner, (expr, range, index))| {
+ source_analyzer
+ .resolve_offset_in_asm_template(InFile::new(file_id, &asm), line, offset)
+ .map(|(owner, (expr, range, index))| {
(range, Some(Either::Right(InlineAsmOperand { owner, expr, index })))
- },
- )
+ })
}
}
@@ -809,14 +874,11 @@ impl<'db> SemanticsImpl<'db> {
None => return res,
};
let file = self.find_file(node.syntax());
- let Some(file_id) = file.file_id.file_id() else {
- return res;
- };
if first == last {
// node is just the token, so descend the token
self.descend_into_macros_impl(
- InRealFile::new(file_id, first),
+ InFile::new(file.file_id, first),
&mut |InFile { value, .. }, _ctx| {
if let Some(node) = value
.parent_ancestors()
@@ -831,14 +893,14 @@ impl<'db> SemanticsImpl<'db> {
} else {
// Descend first and last token, then zip them to look for the node they belong to
let mut scratch: SmallVec<[_; 1]> = smallvec![];
- self.descend_into_macros_impl(InRealFile::new(file_id, first), &mut |token, _ctx| {
+ self.descend_into_macros_impl(InFile::new(file.file_id, first), &mut |token, _ctx| {
scratch.push(token);
CONTINUE_NO_BREAKS
});
let mut scratch = scratch.into_iter();
self.descend_into_macros_impl(
- InRealFile::new(file_id, last),
+ InFile::new(file.file_id, last),
&mut |InFile { value: last, file_id: last_fid }, _ctx| {
if let Some(InFile { value: first, file_id: first_fid }) = scratch.next() {
if first_fid == last_fid {
@@ -900,22 +962,18 @@ impl<'db> SemanticsImpl<'db> {
token: SyntaxToken,
mut cb: impl FnMut(InFile<SyntaxToken>, SyntaxContext),
) {
- if let Ok(token) = self.wrap_token_infile(token).into_real_file() {
- self.descend_into_macros_impl(token, &mut |t, ctx| {
- cb(t, ctx);
- CONTINUE_NO_BREAKS
- });
- }
+ self.descend_into_macros_impl(self.wrap_token_infile(token), &mut |t, ctx| {
+ cb(t, ctx);
+ CONTINUE_NO_BREAKS
+ });
}
pub fn descend_into_macros(&self, token: SyntaxToken) -> SmallVec<[SyntaxToken; 1]> {
let mut res = smallvec![];
- if let Ok(token) = self.wrap_token_infile(token.clone()).into_real_file() {
- self.descend_into_macros_impl(token, &mut |t, _ctx| {
- res.push(t.value);
- CONTINUE_NO_BREAKS
- });
- }
+ self.descend_into_macros_impl(self.wrap_token_infile(token.clone()), &mut |t, _ctx| {
+ res.push(t.value);
+ CONTINUE_NO_BREAKS
+ });
if res.is_empty() {
res.push(token);
}
@@ -928,15 +986,13 @@ impl<'db> SemanticsImpl<'db> {
) -> SmallVec<[InFile<SyntaxToken>; 1]> {
let mut res = smallvec![];
let token = self.wrap_token_infile(token);
- if let Ok(token) = token.clone().into_real_file() {
- self.descend_into_macros_impl(token, &mut |t, ctx| {
- if !ctx.is_opaque(self.db) {
- // Don't descend into opaque contexts
- res.push(t);
- }
- CONTINUE_NO_BREAKS
- });
- }
+ self.descend_into_macros_impl(token.clone(), &mut |t, ctx| {
+ if !ctx.is_opaque(self.db) {
+ // Don't descend into opaque contexts
+ res.push(t);
+ }
+ CONTINUE_NO_BREAKS
+ });
if res.is_empty() {
res.push(token);
}
@@ -945,7 +1001,7 @@ impl<'db> SemanticsImpl<'db> {
pub fn descend_into_macros_breakable<T>(
&self,
- token: InRealFile<SyntaxToken>,
+ token: InFile<SyntaxToken>,
mut cb: impl FnMut(InFile<SyntaxToken>, SyntaxContext) -> ControlFlow<T>,
) -> Option<T> {
self.descend_into_macros_impl(token, &mut cb)
@@ -974,33 +1030,58 @@ impl<'db> SemanticsImpl<'db> {
r
}
+ /// Descends the token into expansions, returning the tokens that matches the input
+ /// token's [`SyntaxKind`] and text.
+ pub fn descend_into_macros_exact_with_file(
+ &self,
+ token: SyntaxToken,
+ ) -> SmallVec<[InFile<SyntaxToken>; 1]> {
+ let mut r = smallvec![];
+ let text = token.text();
+ let kind = token.kind();
+
+ self.descend_into_macros_cb(token.clone(), |InFile { value, file_id }, ctx| {
+ let mapped_kind = value.kind();
+ let any_ident_match = || kind.is_any_identifier() && value.kind().is_any_identifier();
+ let matches = (kind == mapped_kind || any_ident_match())
+ && text == value.text()
+ && !ctx.is_opaque(self.db);
+ if matches {
+ r.push(InFile { value, file_id });
+ }
+ });
+ if r.is_empty() {
+ r.push(self.wrap_token_infile(token));
+ }
+ r
+ }
+
/// Descends the token into expansions, returning the first token that matches the input
/// token's [`SyntaxKind`] and text.
pub fn descend_into_macros_single_exact(&self, token: SyntaxToken) -> SyntaxToken {
let text = token.text();
let kind = token.kind();
- if let Ok(token) = self.wrap_token_infile(token.clone()).into_real_file() {
- self.descend_into_macros_breakable(token, |InFile { value, file_id: _ }, _ctx| {
+ self.descend_into_macros_breakable(
+ self.wrap_token_infile(token.clone()),
+ |InFile { value, file_id: _ }, _ctx| {
let mapped_kind = value.kind();
let any_ident_match =
|| kind.is_any_identifier() && value.kind().is_any_identifier();
let matches = (kind == mapped_kind || any_ident_match()) && text == value.text();
if matches { ControlFlow::Break(value) } else { ControlFlow::Continue(()) }
- })
- } else {
- None
- }
+ },
+ )
.unwrap_or(token)
}
fn descend_into_macros_impl<T>(
&self,
- InRealFile { value: token, file_id }: InRealFile<SyntaxToken>,
+ InFile { value: token, file_id }: InFile<SyntaxToken>,
f: &mut dyn FnMut(InFile<SyntaxToken>, SyntaxContext) -> ControlFlow<T>,
) -> Option<T> {
let _p = tracing::info_span!("descend_into_macros_impl").entered();
- let span = self.db.real_span_map(file_id).span_for_range(token.text_range());
+ let span = self.db.span_map(file_id).span_for_range(token.text_range());
// Process the expansion of a call, pushing all tokens with our span in the expansion back onto our stack
let process_expansion_for_token = |stack: &mut Vec<_>, macro_file| {
@@ -1024,17 +1105,16 @@ impl<'db> SemanticsImpl<'db> {
// the tokens themselves aren't that interesting as the span that is being used to map
// things down never changes.
let mut stack: Vec<(_, SmallVec<[_; 2]>)> = vec![];
- let include = self.s2d_cache.borrow_mut().get_or_insert_include_for(self.db, file_id);
+ let include = file_id.file_id().and_then(|file_id| {
+ self.s2d_cache.borrow_mut().get_or_insert_include_for(self.db, file_id)
+ });
match include {
Some(include) => {
// include! inputs are always from real files, so they only need to be handled once upfront
process_expansion_for_token(&mut stack, include)?;
}
None => {
- stack.push((
- file_id.into(),
- smallvec![(token, SyntaxContext::root(file_id.edition(self.db)))],
- ));
+ stack.push((file_id, smallvec![(token, span.ctx)]));
}
}
@@ -1678,6 +1758,11 @@ impl<'db> SemanticsImpl<'db> {
self.with_ctx(|ctx| ctx.file_to_def(file).to_owned()).into_iter().map(Module::from)
}
+ fn hir_file_to_module_defs(&self, file: HirFileId) -> impl Iterator<Item = Module> {
+ // FIXME: Do we need to care about inline modules for macro expansions?
+ self.file_to_module_defs(file.original_file_respecting_includes(self.db).file_id(self.db))
+ }
+
pub fn scope(&self, node: &SyntaxNode) -> Option<SemanticsScope<'db>> {
self.analyze_no_infer(node).map(|SourceAnalyzer { file_id, resolver, .. }| SemanticsScope {
db: self.db,