1 // RUN: %check_clang_tidy %s readability-avoid-nested-conditional-operator %t
2 
3 int NestInConditional = (true ? true : false) ? 1 : 2;
4 // CHECK-MESSAGES: :[[@LINE-1]]:26: warning: conditional operator is used as sub-expression of parent conditional operator, refrain from using nested conditional operators
5 // CHECK-MESSAGES: :[[@LINE-2]]:25: note: parent conditional operator here
6 
7 int NestInTrue = true ? (true ? 1 : 2) : 2;
8 // CHECK-MESSAGES: :[[@LINE-1]]:26: warning: conditional operator is used as sub-expression of parent conditional operator, refrain from using nested conditional operators
9 // CHECK-MESSAGES: :[[@LINE-2]]:18: note: parent conditional operator here
10 
11 int NestInFalse = true ? 1 : true ? 1 : 2;
12 // CHECK-MESSAGES: :[[@LINE-1]]:30: warning: conditional operator is used as sub-expression of parent conditional operator, refrain from using nested conditional operators
13 // CHECK-MESSAGES: :[[@LINE-2]]:19: note: parent conditional operator here
14 int NestInFalse2 = true ? 1 : (true ? 1 : 2);
15 // CHECK-MESSAGES: :[[@LINE-1]]:32: warning: conditional operator is used as sub-expression of parent conditional operator, refrain from using nested conditional operators
16 // CHECK-MESSAGES: :[[@LINE-2]]:20: note: parent conditional operator here
17 
18 int NestWithParensis = true ? 1 : ((((true ? 1 : 2))));
19 // CHECK-MESSAGES: :[[@LINE-1]]:39: warning: conditional operator is used as sub-expression of parent conditional operator, refrain from using nested conditional operators
20 // CHECK-MESSAGES: :[[@LINE-2]]:24: note: parent conditional operator here
21 
22 #define CONDITIONAL_EXPR (true ? 1 : 2)
23 // not diag for macro since it will not reduce readability
24 int NestWithMacro = true ? CONDITIONAL_EXPR : 2;
25