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modifyable results for generics; teventemitter works

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This commit is contained in:
Araq 2011-08-09 01:40:12 +02:00
commit 7000cf51b7
10 changed files with 103 additions and 40 deletions
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8
lib/pure/strtabs.nim
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@ -92,13 +92,13 @@ proc `[]`*(t: PStringTable, key: string): string {.rtl, extern: "nstGet".} =
if index >= 0: result = t.data[index].val
else: result = ""
proc modGet*(t: PStringTable, key: string): var string {.
proc mget*(t: PStringTable, key: string): var string {.
rtl, extern: "nstTake".} =
## retrieves the location at ``t[key]``. If `key` is not in `t`, the
## ``EInvalidValue`` exception is raised.
## ``EInvalidKey`` exception is raised.
var index = RawGet(t, key)
if index >= 0: result = t.data[index].val
else: raise newException(EInvalidValue, "key does not exist: " & key)
else: raise newException(EInvalidKey, "key does not exist: " & key)
proc hasKey*(t: PStringTable, key: string): bool {.rtl, extern: "nst$1".} =
## returns true iff `key` is in the table `t`.
@ -221,6 +221,6 @@ when isMainModule:
assert x["k"] == "v"
assert x["11"] == "22"
assert x["565"] == "67"
x.modGet("11") = "23"
x.mget("11") = "23"
assert x["11"] == "23"