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| author | Louis Pilfold <louis@lpil.uk> | 2024-05-23 19:44:07 +0100 |
|---|---|---|
| committer | Louis Pilfold <louis@lpil.uk> | 2024-05-23 19:44:07 +0100 |
| commit | e89b5c38724ebf685cd023b3e83f8e1e2d18bde4 (patch) | |
| tree | b36b51f4646bdd3e943a622360bcb811c9c3ae2d | |
| parent | 549ecb851a150a494b72fad172e91f3f4b24653b (diff) | |
| download | gleam_json-e89b5c38724ebf685cd023b3e83f8e1e2d18bde4.tar.gz gleam_json-e89b5c38724ebf685cd023b3e83f8e1e2d18bde4.zip | |
Helpful error message for lower Erlang/OTP versions
| -rw-r--r-- | src/gleam_json_ffi.erl | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/gleam_json_ffi.erl b/src/gleam_json_ffi.erl index 888ae51..c81adf9 100644 --- a/src/gleam_json_ffi.erl +++ b/src/gleam_json_ffi.erl @@ -5,6 +5,27 @@ bool/1, null/0, array/1, object/1 ]). +-if(?OTP_RELEASE < 27). +-define(bad_version, + error({erlang_otp_27_required, << "Insufficient Erlang/OTP version. + +`gleam_json` uses the Erlang `json` module introduced in Erlang/OTP 27. +You are using Erlang/OTP"/utf8, (integer_to_binary(?OTP_RELEASE))/binary, " +Please upgrade your Erlang install or downgrade to `gleam_json` v1.0.1. +"/utf8>>})). + +decode(_) -> ?bad_version. +json_to_iodata(_) -> ?bad_version. +json_to_string(_) -> ?bad_version. +int(_) -> ?bad_version. +float(_) -> ?bad_version. +string(_) -> ?bad_version. +bool(_) -> ?bad_version. +array(_) -> ?bad_version. +object(_) -> ?bad_version. +null() -> ?bad_version. +-else. + decode(Json) -> try {ok, json:decode(Json)} @@ -41,3 +62,5 @@ array_loop([Elem | Rest]) -> [$,, Elem | array_loop(Rest)]. object(List) -> encode_object([[$,, string(Key), $: | Value] || {Key, Value} <- List]). encode_object([]) -> <<"{}">>; encode_object([[_Comma | Entry] | Rest]) -> ["{", Entry, Rest, "}"]. + +-endif. |