a

; RUN: %ProtectFileCheckOutput not FileCheck -input-file %s %s 2>&1 | \
; RUN:   FileCheck -check-prefix CHECK-ERROR -DDIR=%S \
; RUN:   --match-full-lines --strict-whitespace %s

; CHECK:        a[[]]
; CHECK-ERROR:[[DIR]]{{/|\\}}empty-variable-name.txt:7:13: error: empty variable name
; CHECK-ERROR-NEXT:; CHECK: a{{\[\[\]\]}}
;      CHECK-ERROR-NEXT:            ^

b

; RUN: %ProtectFileCheckOutput not FileCheck -input-file %s -check-prefix CHECK-PSEUDO %s 2>&1 | \
; RUN:   FileCheck -check-prefix CHECK-ERROR-PSEUDO -DDIR=%S \
; RUN:   --match-full-lines --strict-whitespace %s

; CHECK-PSEUDO: b[[@]]
; CHECK-ERROR-PSEUDO:[[DIR]]{{/|\\}}empty-variable-name.txt:18:21: error: empty pseudo variable name
; CHECK-ERROR-PSEUDO-NEXT:; CHECK-PSEUDO: b{{\[\[@\]\]}}
;      CHECK-ERROR-PSEUDO-NEXT:                    ^

c

; RUN: %ProtectFileCheckOutput not FileCheck -input-file %s -check-prefix CHECK-GLOBAL %s 2>&1 | \
; RUN:   FileCheck -check-prefix CHECK-ERROR-GLOBAL -DDIR=%S \
; RUN:   --match-full-lines --strict-whitespace %s

; CHECK-GLOBAL: c[[$]]
; CHECK-ERROR-GLOBAL:[[DIR]]{{/|\\}}empty-variable-name.txt:29:21: error: empty global variable name
; CHECK-ERROR-GLOBAL-NEXT:; CHECK-GLOBAL: c{{\[\[\$\]\]}}
;       CHECK-ERROR-GLOBAL-NEXT:                    ^