Merge pull request rust-lang#18805 from Veykril/push-pzurvxvoolxs

internal: Implement `<RaSpanServer as SourceFile>::eq`

Author: Veykril

src/tools/rust-analyzer/crates/hir-def/src/body/tests.rs

@@ -52,6 +52,7 @@ fn your_stack_belongs_to_me() {
     cov_mark::check!(your_stack_belongs_to_me);
     lower(
         r#"
+#![recursion_limit = "32"]
 macro_rules! n_nuple {
     ($e:tt) => ();
     ($($rest:tt)*) => {{
@@ -68,6 +69,7 @@ fn your_stack_belongs_to_me2() {
     cov_mark::check!(overflow_but_not_me);
     lower(
         r#"
+#![recursion_limit = "32"]
 macro_rules! foo {
     () => {{ foo!(); foo!(); }}
 }
@@ -78,8 +80,6 @@ fn main() { foo!(); }
 
 #[test]
 fn recursion_limit() {
-    cov_mark::check!(your_stack_belongs_to_me);
-
     lower(
         r#"
 #![recursion_limit = "2"]

src/tools/rust-analyzer/crates/hir-def/src/nameres/collector.rs

@@ -1451,13 +1451,7 @@ impl DefCollector<'_> {
         depth: usize,
         container: ItemContainerId,
     ) {
-        let recursion_limit = self.def_map.recursion_limit() as usize;
-        let recursion_limit = Limit::new(if cfg!(test) {
-            // Without this, `body::tests::your_stack_belongs_to_me` stack-overflows in debug
-            std::cmp::min(32, recursion_limit)
-        } else {
-            recursion_limit
-        });
+        let recursion_limit = Limit::new(self.def_map.recursion_limit() as usize);
         if recursion_limit.check(depth).is_err() {
             cov_mark::hit!(macro_expansion_overflow);
             tracing::warn!("macro expansion is too deep");

src/tools/rust-analyzer/crates/proc-macro-srv/src/server_impl/rust_analyzer_span.rs

@@ -12,7 +12,7 @@ use std::{
 
 use intern::Symbol;
 use proc_macro::bridge::{self, server};
-use span::{Span, FIXUP_ERASED_FILE_AST_ID_MARKER};
+use span::{FileId, Span, FIXUP_ERASED_FILE_AST_ID_MARKER};
 use tt::{TextRange, TextSize};
 
 use crate::server_impl::{
@@ -32,8 +32,10 @@ mod tt {
 
 type TokenStream = crate::server_impl::TokenStream<Span>;
 
-#[derive(Clone)]
-pub struct SourceFile;
+#[derive(Copy, Clone, PartialEq, Eq, Debug)]
+pub struct SourceFile {
+    file_id: FileId,
+}
 pub struct FreeFunctions;
 
 pub struct RaSpanServer {
@@ -291,9 +293,8 @@ impl server::TokenStream for RaSpanServer {
 }
 
 impl server::SourceFile for RaSpanServer {
-    fn eq(&mut self, _file1: &Self::SourceFile, _file2: &Self::SourceFile) -> bool {
-        // FIXME
-        true
+    fn eq(&mut self, file1: &Self::SourceFile, file2: &Self::SourceFile) -> bool {
+        file1 == file2
     }
     fn path(&mut self, _file: &Self::SourceFile) -> String {
         // FIXME
@@ -308,9 +309,8 @@ impl server::Span for RaSpanServer {
     fn debug(&mut self, span: Self::Span) -> String {
         format!("{:?}", span)
     }
-    fn source_file(&mut self, _span: Self::Span) -> Self::SourceFile {
-        // FIXME stub, requires db
-        SourceFile {}
+    fn source_file(&mut self, span: Self::Span) -> Self::SourceFile {
+        SourceFile { file_id: span.anchor.file_id.file_id() }
     }
     fn save_span(&mut self, _span: Self::Span) -> usize {
         // FIXME, quote is incompatible with third-party tools