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Add TableRef version of mgetOrPut.

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Charles Blake 2015-02-16 06:02:31 -05:00
commit 614a1f9d5a
1 changed files with 5 additions and 0 deletions
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lib/pure/collections/tables.nim
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@ -397,6 +397,11 @@ proc mget*[A, B](t: TableRef[A, B], key: A): var B =
## If `key` is not in `t`, the ``EInvalidKey`` exception is raised.
t[].mget(key)
proc mgetOrPut*[A, B](t: TableRef[A, B], key: A, value: B): var B =
## retrieves value at ``t[key]`` or puts ``value`` if not present, either way
## returning a value which can be modified.
t[].mgetOrPut(key, value)
proc hasKey*[A, B](t: TableRef[A, B], key: A): bool =
## returns true iff `key` is in the table `t`.
result = t[].hasKey(key)