From 9680ae865e9b8202edf483f03ed5169409980dda Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Mon, 20 May 2019 23:01:49 +0300
Subject: simplify

---
 crates/ra_hir/src/expr/validation.rs | 77 ++++++++++++++++++------------------
 1 file changed, 39 insertions(+), 38 deletions(-)

(limited to 'crates/ra_hir/src/expr/validation.rs')

diff --git a/crates/ra_hir/src/expr/validation.rs b/crates/ra_hir/src/expr/validation.rs
index aebed6788..3f758f283 100644
--- a/crates/ra_hir/src/expr/validation.rs
+++ b/crates/ra_hir/src/expr/validation.rs
@@ -5,13 +5,11 @@ use ra_syntax::ast::{AstNode, StructLit};
 
 use crate::{
     expr::AstPtr,
-    HirDatabase,
-    Function,
-    Name,
+    HirDatabase, Function, Name,
     diagnostics::{DiagnosticSink, MissingFields},
     adt::AdtDef,
     Path,
-    ty::InferenceResult
+    ty::InferenceResult,
 };
 use super::{Expr, StructLitField, ExprId};
 
@@ -50,43 +48,46 @@ impl<'a, 'b> ExprValidator<'a, 'b> {
         spread: &Option<ExprId>,
         db: &impl HirDatabase,
     ) {
-        if let Some(_) = spread {
+        if spread.is_some() {
             return;
         }
+
+        let struct_def = match self.infer[id].as_adt() {
+            Some((AdtDef::Struct(s), _)) => s,
+            _ => return,
+        };
+
         let lit_fields: FxHashSet<_> = fields.into_iter().map(|f| &f.name).collect();
-        let struct_ty = &self.infer[id];
-        if let Some((AdtDef::Struct(s), _)) = struct_ty.as_adt() {
-            let missed_fields: Vec<Name> = s
-                .fields(db)
-                .iter()
-                .filter_map(|f| {
-                    let name = f.name(db);
-                    if lit_fields.contains(&name) {
-                        None
-                    } else {
-                        Some(name)
-                    }
-                })
-                .collect();
-            if missed_fields.is_empty() {
-                return;
-            }
-            let source_map = self.func.body_source_map(db);
-            let file_id = self.func.source(db).0;
-            let source_file = db.parse(file_id.original_file(db));
-            if let Some(field_list_node) = source_map
-                .expr_syntax(id)
-                .map(|ptr| ptr.to_node(source_file.syntax()))
-                .and_then(StructLit::cast)
-                .and_then(|lit| lit.named_field_list())
-            {
-                let field_list_ptr = AstPtr::new(field_list_node);
-                self.sink.push(MissingFields {
-                    file: file_id,
-                    field_list: field_list_ptr,
-                    missed_fields,
-                })
-            }
+        let missed_fields: Vec<Name> = struct_def
+            .fields(db)
+            .iter()
+            .filter_map(|f| {
+                let name = f.name(db);
+                if lit_fields.contains(&name) {
+                    None
+                } else {
+                    Some(name)
+                }
+            })
+            .collect();
+        if missed_fields.is_empty() {
+            return;
+        }
+        let source_map = self.func.body_source_map(db);
+        let file_id = self.func.source(db).0;
+        let source_file = db.parse(file_id.original_file(db));
+        if let Some(field_list_node) = source_map
+            .expr_syntax(id)
+            .map(|ptr| ptr.to_node(source_file.syntax()))
+            .and_then(StructLit::cast)
+            .and_then(|lit| lit.named_field_list())
+        {
+            let field_list_ptr = AstPtr::new(field_list_node);
+            self.sink.push(MissingFields {
+                file: file_id,
+                field_list: field_list_ptr,
+                missed_fields,
+            })
         }
     }
 }
-- 
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