#14082: -ddump-json does not escape output properly -------------------------------------+------------------------------------- Reporter: dramforever | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- == Steps to reproduce This program {{{#!hs module StringError where q = "string" + "string" }}} Compiled with `-ddump-json`, produces this JSON output: {{{ [ {"span": {"file": "tmp.hs","startLine": 3,"startCol": 5,"endLine": 3,"endCol": 24},"doc": "\u2022 No instance for (Num [Char]) arising f rom a use of \u2018+\u2019\n\u2022 In the expression: "string" + "string"\n In an equation for \u2018q\u2019: q = "string" + "string""," severity": "SevError","reason": null}] }}} It is not valid JSON, because `"string"` occured in a JSON string, but the quotes are not escaped. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14082 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler