HasSource::source_old -> HasSource::source for places where proc-macros were special cased

In #6901 some special case handling for proc-macros was introduced to
prevent panicing as they have no AST. Now the new HasSource::source
method is used that returns an option.

Generally this was a pretty trivial change, the only thing of much
interest is that `hir::MacroDef` now implements `TryToNav` not `ToNav`
as this allows us to handle `HasSource::source` now returning an option.
This commit is contained in:
Nick Spain 2021-01-01 14:14:09 +11:00
parent ea4708c444
commit 14d0db0759
4 changed files with 11 additions and 42 deletions

View file

@ -327,14 +327,7 @@ 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;
}
#[allow(deprecated)]
let label = macro_label(&it.source_old(db).value);
let label = macro_label(&it.source(db)?.value);
from_def_source_labeled(db, it, Some(label), mod_path)
}
Definition::Field(def) => {