From 68b4efd53601fd67fbba4a2aa25ac94ecff58e5e Mon Sep 17 00:00:00 2001
From: Nick Spain <nicholas.spain@stileeducation.com>
Date: Fri, 1 Jan 2021 15:33:06 +1100
Subject: Handle not finding range in Definition::search_scope

The `LifetimeParam` and `Local` variants use `source()` to find their
range. Now that `source()` returns an `Option` we need to handle the
`None` case.
---
 crates/ide_db/src/search.rs | 48 +++++++++++++++++++++++++++++++++------------
 1 file changed, 36 insertions(+), 12 deletions(-)

diff --git a/crates/ide_db/src/search.rs b/crates/ide_db/src/search.rs
index e69f9d141..c4aff3932 100644
--- a/crates/ide_db/src/search.rs
+++ b/crates/ide_db/src/search.rs
@@ -122,9 +122,15 @@ impl Definition {
         if let Definition::Local(var) = self {
             #[allow(deprecated)]
             let range = match var.parent(db) {
-                DefWithBody::Function(f) => f.source_old(db).value.syntax().text_range(),
-                DefWithBody::Const(c) => c.source_old(db).value.syntax().text_range(),
-                DefWithBody::Static(s) => s.source_old(db).value.syntax().text_range(),
+                DefWithBody::Function(f) => {
+                    f.source(db).and_then(|src| src.value.syntax().text_range())
+                }
+                DefWithBody::Const(c) => {
+                    c.source(db).and_then(|src| src.value.syntax().text_range())
+                }
+                DefWithBody::Static(s) => {
+                    s.source(db).and_then(|src| src.value.syntax().text_range())
+                }
             };
             let mut res = FxHashMap::default();
             res.insert(file_id, Some(range));
@@ -134,17 +140,35 @@ impl Definition {
         if let Definition::LifetimeParam(param) = self {
             #[allow(deprecated)]
             let range = match param.parent(db) {
-                hir::GenericDef::Function(it) => it.source_old(db).value.syntax().text_range(),
+                hir::GenericDef::Function(it) => {
+                    it.source(db).and_then(|src| src.value.syntax().text_range())
+                }
                 hir::GenericDef::Adt(it) => match it {
-                    hir::Adt::Struct(it) => it.source_old(db).value.syntax().text_range(),
-                    hir::Adt::Union(it) => it.source_old(db).value.syntax().text_range(),
-                    hir::Adt::Enum(it) => it.source_old(db).value.syntax().text_range(),
+                    hir::Adt::Struct(it) => {
+                        it.source(db).and_then(|src| src.value.syntax().text_range())
+                    }
+                    hir::Adt::Union(it) => {
+                        it.source(db).and_then(|src| src.value.syntax().text_range())
+                    }
+                    hir::Adt::Enum(it) => {
+                        it.source(db).and_then(|src| src.value.syntax().text_range())
+                    }
                 },
-                hir::GenericDef::Trait(it) => it.source_old(db).value.syntax().text_range(),
-                hir::GenericDef::TypeAlias(it) => it.source_old(db).value.syntax().text_range(),
-                hir::GenericDef::Impl(it) => it.source_old(db).value.syntax().text_range(),
-                hir::GenericDef::Variant(it) => it.source_old(db).value.syntax().text_range(),
-                hir::GenericDef::Const(it) => it.source_old(db).value.syntax().text_range(),
+                hir::GenericDef::Trait(it) => {
+                    it.source(db).and_then(|src| src.value.syntax().text_range())
+                }
+                hir::GenericDef::TypeAlias(it) => {
+                    it.source(db).and_then(|src| src.value.syntax().text_range())
+                }
+                hir::GenericDef::Impl(it) => {
+                    it.source(db).and_then(|src| src.value.syntax().text_range())
+                }
+                hir::GenericDef::Variant(it) => {
+                    it.source(db).and_then(|src| src.value.syntax().text_range())
+                }
+                hir::GenericDef::Const(it) => {
+                    it.source(db).and_then(|src| src.value.syntax().text_range())
+                }
             };
             let mut res = FxHashMap::default();
             res.insert(file_id, Some(range));
-- 
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