Merge #6901

6901: Temp fixes panic caused by no ast for proc-macro r=maklad a=edwin0cheng

There are some panic when hover/goto definition for proc-macro. It is because in current design, we don't have `ast-node` for proc-macro and then it trigger [this](https://github.com/rust-analyzer/rust-analyzer/blob/479d1f7eec22c3564867223e2093f14774092528/crates/hir/src/has_source.rs#L116) line to panic.

This PR is a temp fix for all of these similar to https://github.com/rust-analyzer/rust-analyzer/blob/bd4c352831662762ee7a66da77ec9adf623b0a0a/crates/completion/src/render/macro_.rs#L42

Co-authored-by: Edwin Cheng <[email protected]>

1 files changed, 6 insertions, 0 deletions

diff --git a/crates/ide/src/hover.rs b/crates/ide/src/hover.rs
index e82aad6d5..da6bb726a 100644
--- a/crates/ide/src/hover.rs
+++ b/crates/ide/src/hover.rs
@@ -324,6 +324,12 @@ fn hover_for_definition(db: &RootDatabase, def: Definition) -> Option<Markup> {
     let mod_path = definition_mod_path(db, &def);
     return match def {
         Definition::Macro(it) => {
+            // FIXME: Currently proc-macro do not have ast-node,
+            // such that it does not have source
+            // more discussion: https://github.com/rust-analyzer/rust-analyzer/issues/6913
+            if it.is_proc_macro() {
+                return None;
+            }
             let label = macro_label(&it.source(db).value);
             from_def_source_labeled(db, it, Some(label), mod_path)
         }