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llvm-project/clang/test/TableGen/anonymous-groups.td

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Error if an anonymous DiagGroup is referenced multiple times. Not only is this inefficient for TableGen, it's annoying for maintenance when renaming warning flags (unusual) or adding those flags to a group (more likely). This uses the new fix-it infrastructure for LLVM's SourceMgr/SMDiagnostic, as well as a few changes to TableGen to track more source information. llvm-svn: 172087
2013-01-11 02:50:46 +08:00
// RUN: clang-tblgen -gen-clang-diag-groups -I%S %s -o /dev/null 2>&1 | FileCheck --strict-whitespace %s
include "DiagnosticBase.inc"
// Do not move this line; it is referred to by absolute line number in the
// FileCheck lines below.
def NamedGroup : DiagGroup<"name">;
def InNamedGroup : Warning<"">, InGroup<DiagGroup<"name">>;
// CHECK: anonymous-groups.td:[[@LINE-1]]:41: error: group 'name' is referred to anonymously
// CHECK-NEXT: {{^def InNamedGroup : Warning<"">, InGroup<DiagGroup<"name">>;}}
// CHECK-NEXT: {{^ ~~~~~~~~\^~~~~~~~~~~~~~~~~~}}
// CHECK-NEXT: {{^ InGroup<NamedGroup>}}
// CHECK-NEXT: anonymous-groups.td:6:1: note: group defined here
// CHECK-NEXT: def NamedGroup : DiagGroup<"name">;
// CHECK-NEXT: ^
def AlsoInNamedGroup : Warning<"">, InGroup < DiagGroup<"name"> >;
// CHECK: anonymous-groups.td:[[@LINE-1]]:48: error: group 'name' is referred to anonymously
// CHECK-NEXT: {{^def AlsoInNamedGroup : Warning<"">, InGroup < DiagGroup<"name"> >;}}
// CHECK-NEXT: {{^ ~~~~~~~~~~~\^~~~~~~~~~~~~~~~~~~}}
// CHECK-NEXT: {{^ InGroup<NamedGroup>}}
// CHECK-NEXT: anonymous-groups.td:6:1: note: group defined here
// CHECK-NEXT: def NamedGroup : DiagGroup<"name">;
// CHECK-NEXT: ^
def AnonymousGroup : Warning<"">, InGroup<DiagGroup<"anonymous">>;
def AlsoAnonymousGroup : Warning<"">, InGroup<DiagGroup<"anonymous">>;
def AnonymousGroupAgain : Warning<"">,
InGroup<DiagGroup<"anonymous">>;
// CHECK: anonymous-groups.td:[[@LINE-5]]:43: error: group 'anonymous' is referred to anonymously
// CHECK-NEXT: {{^def AnonymousGroup : Warning<"">, InGroup<DiagGroup<"anonymous">>;}}
// CHECK-NEXT: {{^ ~~~~~~~~\^~~~~~~~~~~~~~~~~~~~~~~}}
// CHECK-NEXT: anonymous-groups.td:[[@LINE-7]]:47: note: also referenced here
// CHECK-NEXT: {{^def AlsoAnonymousGroup : Warning<"">, InGroup<DiagGroup<"anonymous">>;}}
// CHECK-NEXT: {{^ ~~~~~~~~\^~~~~~~~~~~~~~~~~~~~~~~}}
// CHECK-NEXT: anonymous-groups.td:[[@LINE-8]]:11: note: also referenced here
// CHECK-NEXT: {{^ InGroup<DiagGroup<"anonymous">>;}}
// CHECK-NEXT: {{^ ~~~~~~~~\^~~~~~~~~~~~~~~~~~~~~~~}}