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Added optional proc parameter to llStreamOpenStdIn (#10769)

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This commit is contained in:
sealmove
2019-03-04 11:52:34 +02:00
committed by Andreas Rumpf
parent 7072e3ddca
commit bf1f4b914b
1 changed files with 6 additions and 2 deletions
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8
compiler/llstream.nim
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@@ -17,6 +17,7 @@ when not defined(windows) and (defined(useGnuReadline) or defined(useLinenoise))
import rdstdin
type
TLLRepl* = proc (s: PLLStream, buf: pointer, bufLen: int): int
TLLStreamKind* = enum # enum of different stream implementations
llsNone, # null stream: reading and writing has no effect
llsString, # stream encapsulates a string
@@ -28,6 +29,7 @@ type
s*: string
rd*, wr*: int # for string streams
lineOffset*: int # for fake stdin line numbers
repl*: TLLRepl # gives stdin control to clients
PLLStream* = ref TLLStream
@@ -50,11 +52,13 @@ proc llStreamOpen*(): PLLStream =
new(result)
result.kind = llsNone
proc llStreamOpenStdIn*(): PLLStream =
proc llReadFromStdin(s: PLLStream, buf: pointer, bufLen: int): int
proc llStreamOpenStdIn*(r: TLLRepl = llReadFromStdin): PLLStream =
new(result)
result.kind = llsStdIn
result.s = ""
result.lineOffset = -1
result.repl = r
proc llStreamClose*(s: PLLStream) =
case s.kind
@@ -127,7 +131,7 @@ proc llStreamRead*(s: PLLStream, buf: pointer, bufLen: int): int =
of llsFile:
result = readBuffer(s.f, buf, bufLen)
of llsStdIn:
result = llReadFromStdin(s, buf, bufLen)
result = s.repl(s, buf, bufLen)
proc llStreamReadLine*(s: PLLStream, line: var string): bool =
setLen(line, 0)