1 // RUN: rm -rf %t
2 // RUN: mkdir %t
3 // RUN: cp %S/Inputs/performance-unnecessary-value-param/header.h %t/header.h
4 // RUN: %check_clang_tidy %s performance-unnecessary-value-param %t/temp -- -- -I %t
5 // RUN: diff %t/header.h %S/Inputs/performance-unnecessary-value-param/header-fixed.h
6
7 #include "header.h"
8
9
10
f1(int n,ABC v1,ABC v2)11 int f1(int n, ABC v1, ABC v2) {
12 // CHECK-MESSAGES: [[@LINE-1]]:19: warning: the parameter 'v1' is copied for each invocation but only used as a const reference; consider making it a const reference [performance-unnecessary-value-param]
13 // CHECK-MESSAGES: [[@LINE-2]]:27: warning: the parameter 'v2' is copied for each invocation but only used as a const reference; consider making it a const reference [performance-unnecessary-value-param]
14 // CHECK-FIXES: int f1(int n, const ABC& v1, const ABC& v2) {
15 return v1.get(n) + v2.get(n);
16 }
f2(int n,ABC v2)17 int f2(int n, ABC v2) {
18 // CHECK-MESSAGES: [[@LINE-1]]:19: warning: the parameter 'v2' is copied for each invocation but only used as a const reference; consider making it a const reference [performance-unnecessary-value-param]
19 // CHECK-FIXES: int f2(int n, const ABC& v2) {
20 }
21