Modify behavior of -ast-dump-lookups: if -ast-dump is not also provided, dump

anyway. If -ast-dump *is* also provided, then dump the AST declarations as well
as the lookup results. This is invaluable for cross-correlating the lookup
information with the declarations actually found.

llvm-svn: 215393

1 files changed, 38 insertions, 0 deletions

diff --git a/clang/test/Misc/ast-dump-lookups.cpp b/clang/test/Misc/ast-dump-lookups.cpp
new file mode 100644
index 00000000000..5c6da48b3af
--- /dev/null
+++ b/clang/test/Misc/ast-dump-lookups.cpp
@@ -0,0 +1,38 @@
+// RUN: %clang_cc1 -std=c++11 -ast-dump -ast-dump-filter Test %s | FileCheck -check-prefix DECLS %s
+// RUN: %clang_cc1 -std=c++11 -ast-dump-lookups -ast-dump-filter Test %s | FileCheck -check-prefix LOOKUPS %s
+// RUN: %clang_cc1 -std=c++11 -ast-dump -ast-dump-lookups -ast-dump-filter Test %s | FileCheck -check-prefix DECLS-LOOKUPS %s
+
+namespace Test {
+  extern int a;
+  int a = 0;
+}
+
+namespace Test { }
+
+// DECLS: Dumping Test:
+// DECLS-NEXT: NamespaceDecl {{.*}} Test
+// DECLS-NEXT: |-VarDecl [[EXTERN_A:0x[^ ]*]] {{.*}} a 'int' extern
+// DECLS-NEXT: `-VarDecl {{.*}} prev [[EXTERN_A]] {{.*}} a 'int' cinit
+// DECLS-NEXT:   `-IntegerLiteral {{.*}} 'int' 0
+//
+// DECLS: Dumping Test:
+// DECLS-NEXT: NamespaceDecl {{.*}} Test
+
+// LOOKUPS: Dumping Test:
+// LOOKUPS-NEXT: StoredDeclsMap Namespace {{.*}} 'Test'
+// LOOKUPS-NEXT: `-DeclarationName 'a'
+// LOOKUPS-NEXT:   `-Var {{.*}} 'a' 'int'
+//
+// LOOKUPS: Dumping Test:
+// LOOKUPS-NEXT: Lookup map is in primary DeclContext
+
+// DECLS-LOOKUPS: Dumping Test:
+// DECLS-LOOKUPS-NEXT: StoredDeclsMap Namespace {{.*}} 'Test'
+// DECLS-LOOKUPS-NEXT: `-DeclarationName 'a'
+// DECLS-LOOKUPS-NEXT:   `-Var [[A:[^ ]*]] 'a' 'int'
+// DECLS-LOOKUPS-NEXT:     |-VarDecl [[EXTERN_A:0x[^ ]*]] {{.*}} a 'int' extern
+// DECLS-LOOKUPS-NEXT:     `-VarDecl [[A]] prev [[EXTERN_A]] {{.*}} a 'int' cinit
+// DECLS-LOOKUPS-NEXT:       `-IntegerLiteral {{.*}} 'int' 0
+//
+// DECLS-LOOKUPS: Dumping Test:
+// DECLS-LOOKUPS-NEXT: Lookup map is in primary DeclContext