|  | # RUN: clangd -lit-test < %s | FileCheck -strict-whitespace %s | 
|  | # Start a session. | 
|  | {"jsonrpc":"2.0","id":0,"method":"initialize","params":{"processId":123,"rootPath":"clangd","capabilities":{"textDocument": {"signatureHelp": {"signatureInformation": {"documentationFormat": ["markdown", "plaintext"]}}}},"trace":"off"}} | 
|  | --- | 
|  | {"jsonrpc":"2.0","method":"textDocument/didOpen","params":{"textDocument":{"uri":"test:///main.cpp","languageId":"cpp","version":1,"text":"// comment `markdown` _escape_\nvoid x(int);\nint main(){\nx("}}} | 
|  | --- | 
|  | {"jsonrpc":"2.0","id":1,"method":"textDocument/signatureHelp","params":{"textDocument":{"uri":"test:///main.cpp"},"position":{"line":3,"character":2}}} | 
|  | #      CHECK: "id": 1, | 
|  | # CHECK-NEXT: "jsonrpc": "2.0", | 
|  | # CHECK-NEXT: "result": { | 
|  | # CHECK-NEXT:   "activeParameter": 0, | 
|  | # CHECK-NEXT:   "activeSignature": 0, | 
|  | # CHECK-NEXT:   "signatures": [ | 
|  | # CHECK-NEXT:     { | 
|  | # CHECK-NEXT:       "documentation": { | 
|  | # CHECK-NEXT:         "kind": "markdown", | 
|  | # CHECK-NEXT:         "value": "comment `markdown` \\_escape\\_" | 
|  | # CHECK-NEXT:       }, | 
|  | # CHECK-NEXT:       "label": "x(int) -> void", | 
|  | # CHECK-NEXT:       "parameters": [ | 
|  | # CHECK-NEXT:         { | 
|  | # CHECK-NEXT:           "label": "int" | 
|  | # CHECK-NEXT:         } | 
|  | # CHECK-NEXT:       ] | 
|  | # CHECK-NEXT:     } | 
|  | # CHECK-NEXT:   ] | 
|  | # CHECK-NEXT: } | 
|  | --- | 
|  | {"jsonrpc":"2.0","id":100000,"method":"shutdown"} | 
|  | --- | 
|  | {"jsonrpc":"2.0","method":"exit"} |