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Separate error offset from error message #70

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Separate error offset from error message #70

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5 changes: 4 additions & 1 deletion src/jsony.nim
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ import jsony/objvar, std/json, std/options, std/parseutils, std/sets,
std/strutils, std/tables, std/typetraits, std/unicode

type JsonError* = object of ValueError
offset*: int

const whiteSpace = {' ', '\n', '\t', '\r'}

Expand All @@ -27,7 +28,9 @@ proc parseHook*[T: distinct](s: string, i: var int, v: var T)

template error(msg: string, i: int) =
## Shortcut to raise an exception.
raise newException(JsonError, msg & " At offset: " & $i)
var e = newException(JsonError, msg)
e.offset = i
raise e

template eatSpace*(s: string, i: var int) =
## Will consume whitespace.
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