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system.substr is not implemented with compilerProcs anymore

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This commit is contained in:
Andreas Rumpf 2018-07-11 16:39:16 +02:00
commit 5b59852406
8 changed files with 157 additions and 67 deletions
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10
lib/system/sysstr.nim
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@ -63,6 +63,8 @@ proc mnewString(len: int): NimString {.compilerProc.} =
result.len = len
proc copyStrLast(s: NimString, start, last: int): NimString {.compilerProc.} =
# This is not used by most recent versions of the compiler anymore, but
# required for bootstrapping purposes.
let start = max(start, 0)
let len = min(last, s.len-1) - start + 1
if len > 0:
@ -73,13 +75,15 @@ proc copyStrLast(s: NimString, start, last: int): NimString {.compilerProc.} =
else:
result = rawNewString(len)
proc copyStr(s: NimString, start: int): NimString {.compilerProc.} =
# This is not used by most recent versions of the compiler anymore, but
# required for bootstrapping purposes.
result = copyStrLast(s, start, s.len-1)
proc nimToCStringConv(s: NimString): cstring {.compilerProc, inline.} =
if s == nil or s.len == 0: result = cstring""
else: result = cstring(addr s.data)
proc copyStr(s: NimString, start: int): NimString {.compilerProc.} =
result = copyStrLast(s, start, s.len-1)
proc toNimStr(str: cstring, len: int): NimString {.compilerProc.} =
result = rawNewStringNoInit(len)
result.len = len