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https://github.com/logos-storage/logos-storage-nim.git
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cce002fcbf
Signed-off-by: Giuliano Mega <giuliano.mega@gmail.com> Co-authored-by: munna0908 <munnasitu0908@gmail.com> Co-authored-by: gmega <giuliano.mega@gmail.com> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
25 lines
646 B
Nim
25 lines
646 B
Nim
import stew/ptrops
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type SharedBuf*[T] = object
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payload*: ptr UncheckedArray[T]
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len*: int
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proc view*[T](_: type SharedBuf, v: openArray[T]): SharedBuf[T] =
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if v.len > 0:
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SharedBuf[T](payload: makeUncheckedArray(addr v[0]), len: v.len)
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else:
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default(SharedBuf[T])
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template checkIdx(v: SharedBuf, i: int) =
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doAssert i > 0 and i <= v.len
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proc `[]`*[T](v: SharedBuf[T], i: int): var T =
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v.checkIdx(i)
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v.payload[i]
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template toOpenArray*[T](v: SharedBuf[T]): var openArray[T] =
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v.payload.toOpenArray(0, v.len - 1)
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template toOpenArray*[T](v: SharedBuf[T], s, e: int): var openArray[T] =
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v.toOpenArray().toOpenArray(s, e)
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