Introduce the ability to dump the AST to JSON.

This adds the -ast-dump=json cc1 flag (in addition to -ast-dump=default, which is the default if no dump format is specified), as well as some initial AST dumping functionality and tests.

llvm-svn: 360622

1 files changed, 484 insertions, 0 deletions

diff --git a/clang/test/AST/ast-dump-enum-json.cpp b/clang/test/AST/ast-dump-enum-json.cpp
new file mode 100644
index 00000000000..b8092f14aaf
--- /dev/null
+++ b/clang/test/AST/ast-dump-enum-json.cpp
@@ -0,0 +1,484 @@
+// RUN: %clang_cc1 -triple x86_64-pc-linux -std=c++17 -ast-dump=json %s | FileCheck %s
+
+enum {
+  One,
+  Two
+};
+
+// CHECK: "kind": "EnumDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 1,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 3
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 1,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 3
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 1,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 6
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "inner": [
+// CHECK-NEXT: {
+// CHECK-NEXT: "id": "0x{{.*}}",
+// CHECK-NEXT: "kind": "EnumConstantDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 4
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 4
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 4
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "One",
+// CHECK-NEXT: "type": {
+// CHECK-NEXT: "qualType": "(anonymous enum at {{.*}}:3:1)"
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: {
+// CHECK-NEXT: "id": "0x{{.*}}",
+// CHECK-NEXT: "kind": "EnumConstantDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 5
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 5
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 5
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "Two",
+// CHECK-NEXT: "type": {
+// CHECK-NEXT: "qualType": "(anonymous enum at {{.*}}:3:1)"
+// CHECK-NEXT: }
+// CHECK-NEXT: }
+// CHECK-NEXT: ]
+// CHECK-NEXT: },
+
+enum E {
+  Three,
+  Four
+};
+
+// CHECK: "kind": "EnumDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 6,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 80
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 1,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 80
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 1,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 83
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "E",
+// CHECK-NEXT: "inner": [
+// CHECK-NEXT: {
+// CHECK-NEXT: "id": "0x{{.*}}",
+// CHECK-NEXT: "kind": "EnumConstantDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 81
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 81
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 81
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "Three",
+// CHECK-NEXT: "type": {
+// CHECK-NEXT: "qualType": "E"
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: {
+// CHECK-NEXT: "id": "0x{{.*}}",
+// CHECK-NEXT: "kind": "EnumConstantDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 82
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 82
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 82
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "Four",
+// CHECK-NEXT: "type": {
+// CHECK-NEXT: "qualType": "E"
+// CHECK-NEXT: }
+// CHECK-NEXT: }
+// CHECK-NEXT: ]
+// CHECK-NEXT: },
+
+enum F : short {
+  Five,
+  Six
+};
+
+// CHECK: "kind": "EnumDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 6,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 158
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 1,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 158
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 1,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 161
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "F",
+// CHECK-NEXT: "fixedUnderlyingType": {
+// CHECK-NEXT: "qualType": "short"
+// CHECK-NEXT: },
+// CHECK-NEXT: "inner": [
+// CHECK-NEXT: {
+// CHECK-NEXT: "id": "0x{{.*}}",
+// CHECK-NEXT: "kind": "EnumConstantDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 159
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 159
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 159
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "Five",
+// CHECK-NEXT: "type": {
+// CHECK-NEXT: "qualType": "F"
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: {
+// CHECK-NEXT: "id": "0x{{.*}}",
+// CHECK-NEXT: "kind": "EnumConstantDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 160
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 160
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 160
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "Six",
+// CHECK-NEXT: "type": {
+// CHECK-NEXT: "qualType": "F"
+// CHECK-NEXT: }
+// CHECK-NEXT: }
+// CHECK-NEXT: ]
+// CHECK-NEXT: },
+
+enum struct G {
+  Seven,
+  Eight
+};
+
+// CHECK: "kind": "EnumDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 13,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 239
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 1,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 239
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 1,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 242
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "G",
+// CHECK-NEXT: "fixedUnderlyingType": {
+// CHECK-NEXT: "qualType": "int"
+// CHECK-NEXT: },
+// CHECK-NEXT: "scopedEnumTag": "struct",
+// CHECK-NEXT: "inner": [
+// CHECK-NEXT: {
+// CHECK-NEXT: "id": "0x{{.*}}",
+// CHECK-NEXT: "kind": "EnumConstantDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 240
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 240
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 240
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "Seven",
+// CHECK-NEXT: "type": {
+// CHECK-NEXT: "qualType": "G"
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: {
+// CHECK-NEXT: "id": "0x{{.*}}",
+// CHECK-NEXT: "kind": "EnumConstantDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 241
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 241
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 241
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "Eight",
+// CHECK-NEXT: "type": {
+// CHECK-NEXT: "qualType": "G"
+// CHECK-NEXT: }
+// CHECK-NEXT: }
+// CHECK-NEXT: ]
+// CHECK-NEXT: },
+
+enum class H {
+  Nine,
+  Ten
+};
+
+// CHECK: "kind": "EnumDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 12,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 321
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 1,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 321
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 1,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 324
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "H",
+// CHECK-NEXT: "fixedUnderlyingType": {
+// CHECK-NEXT: "qualType": "int"
+// CHECK-NEXT: },
+// CHECK-NEXT: "scopedEnumTag": "class",
+// CHECK-NEXT: "inner": [
+// CHECK-NEXT: {
+// CHECK-NEXT: "id": "0x{{.*}}",
+// CHECK-NEXT: "kind": "EnumConstantDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 322
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 322
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 322
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "Nine",
+// CHECK-NEXT: "type": {
+// CHECK-NEXT: "qualType": "H"
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: {
+// CHECK-NEXT: "id": "0x{{.*}}",
+// CHECK-NEXT: "kind": "EnumConstantDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 323
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 323
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 323
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "Ten",
+// CHECK-NEXT: "type": {
+// CHECK-NEXT: "qualType": "H"
+// CHECK-NEXT: }
+// CHECK-NEXT: }
+// CHECK-NEXT: ]
+// CHECK-NEXT: },
+
+enum class I : int {
+  Eleven,
+  Twelve
+};
+
+// CHECK: "kind": "EnumDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 12,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 403
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 1,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 403
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 1,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 406
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "I",
+// CHECK-NEXT: "fixedUnderlyingType": {
+// CHECK-NEXT: "qualType": "int"
+// CHECK-NEXT: },
+// CHECK-NEXT: "scopedEnumTag": "class",
+// CHECK-NEXT: "inner": [
+// CHECK-NEXT: {
+// CHECK-NEXT: "id": "0x{{.*}}",
+// CHECK-NEXT: "kind": "EnumConstantDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 404
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 404
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 404
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "Eleven",
+// CHECK-NEXT: "type": {
+// CHECK-NEXT: "qualType": "I"
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: {
+// CHECK-NEXT: "id": "0x{{.*}}",
+// CHECK-NEXT: "kind": "EnumConstantDecl",
+// CHECK-NEXT: "loc": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 405
+// CHECK-NEXT: },
+// CHECK-NEXT: "range": {
+// CHECK-NEXT: "begin": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 405
+// CHECK-NEXT: },
+// CHECK-NEXT: "end": {
+// CHECK-NEXT: "col": 3,
+// CHECK-NEXT: "file": "{{.*}}",
+// CHECK-NEXT: "line": 405
+// CHECK-NEXT: }
+// CHECK-NEXT: },
+// CHECK-NEXT: "name": "Twelve",
+// CHECK-NEXT: "type": {
+// CHECK-NEXT: "qualType": "I"
+// CHECK-NEXT: }
+// CHECK-NEXT: }
+// CHECK-NEXT: ]
+// CHECK-NEXT: }
+// CHECK-NEXT: ]