From f7156cb0aeaba8fe32c381a2d676b35d2c86f46f Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Mon, 15 Mar 2021 15:38:50 +0300
Subject: Simplify source maps for fields

---
 crates/hir_ty/src/infer.rs      | 6 +++---
 crates/hir_ty/src/infer/expr.rs | 5 ++---
 2 files changed, 5 insertions(+), 6 deletions(-)

(limited to 'crates/hir_ty')

diff --git a/crates/hir_ty/src/infer.rs b/crates/hir_ty/src/infer.rs
index fbfedb4e6..9f29098ee 100644
--- a/crates/hir_ty/src/infer.rs
+++ b/crates/hir_ty/src/infer.rs
@@ -784,7 +784,7 @@ mod diagnostics {
 
     #[derive(Debug, PartialEq, Eq, Clone)]
     pub(super) enum InferenceDiagnostic {
-        NoSuchField { expr: ExprId, field: usize },
+        NoSuchField { expr: ExprId },
         BreakOutsideOfLoop { expr: ExprId },
     }
 
@@ -796,9 +796,9 @@ mod diagnostics {
             sink: &mut DiagnosticSink,
         ) {
             match self {
-                InferenceDiagnostic::NoSuchField { expr, field } => {
+                InferenceDiagnostic::NoSuchField { expr } => {
                     let (_, source_map) = db.body_with_source_map(owner);
-                    let field = source_map.field_syntax(*expr, *field);
+                    let field = source_map.field_syntax(*expr);
                     sink.push(NoSuchField { file: field.file_id, field: field.value })
                 }
                 InferenceDiagnostic::BreakOutsideOfLoop { expr } => {
diff --git a/crates/hir_ty/src/infer/expr.rs b/crates/hir_ty/src/infer/expr.rs
index 55163c963..1a11b146a 100644
--- a/crates/hir_ty/src/infer/expr.rs
+++ b/crates/hir_ty/src/infer/expr.rs
@@ -405,14 +405,13 @@ impl<'a> InferenceContext<'a> {
                 let substs = ty.substs().cloned().unwrap_or_else(Substs::empty);
                 let field_types = def_id.map(|it| self.db.field_types(it)).unwrap_or_default();
                 let variant_data = def_id.map(|it| variant_data(self.db.upcast(), it));
-                for (field_idx, field) in fields.iter().enumerate() {
+                for field in fields.iter() {
                     let field_def =
                         variant_data.as_ref().and_then(|it| match it.field(&field.name) {
                             Some(local_id) => Some(FieldId { parent: def_id.unwrap(), local_id }),
                             None => {
                                 self.push_diagnostic(InferenceDiagnostic::NoSuchField {
-                                    expr: tgt_expr,
-                                    field: field_idx,
+                                    expr: field.expr,
                                 });
                                 None
                             }
-- 
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