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Merge pull request #40 from Productive2/master 

Fix stdlib bug (segfault at readLine())
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Mattia 2021-02-15 07:48:43 +01:00 committed by GitHub
parent 7c1cd5df8e 3fbf4300dc
commit 1f545b5b94
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1 changed files with 4 additions and 3 deletions
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7
src/stdlib.nim
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@ -68,11 +68,12 @@ proc natReadline*(args: seq[ptr Obj]): tuple[kind: retNative, result: ptr Obj] =
## Reads a line from stdin and returns
## it as a string, optionally writing
## a given prompt to stdout
if len(args) > 1:
if args.len() > 1:
return (kind: retNative.Exception, result: newTypeError(&"Function 'readLine' takes 0 to 1 arguments, got {len(args)}"))
elif not args[0].isStr():
elif args.len() > 0 and not args[0].isStr():
return (kind: retNative.Exception, result: newTypeError(&"The prompt must be of type 'string', not '{args[0].typeName()}'"))
stdout.write(args[0].toStr())
if args.len() > 0:
stdout.write(args[0].toStr())
return (kind: retNative.Object, result: stdin.readLine().asStr())