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exqlite
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An Elixir SQLite3 library
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lib/exqlite/stream.ex
defmodule Exqlite.Stream do
@moduledoc false
defstruct [:conn, :query, :params, :options]
@type t :: %Exqlite.Stream{}
defimpl Enumerable do
def reduce(%Exqlite.Stream{query: %Exqlite.Query{} = query} = stream, acc, fun) do
# TODO: Possibly need to pass a chunk size option along so that we can let
# the NIF chunk it.
%Exqlite.Stream{conn: conn, params: params, options: opts} = stream
stream = %DBConnection.Stream{
conn: conn,
query: query,
params: params,
opts: opts
}
DBConnection.reduce(stream, acc, fun)
end
def reduce(%Exqlite.Stream{query: statement} = stream, acc, fun) do
%Exqlite.Stream{conn: conn, params: params, options: opts} = stream
query = %Exqlite.Query{name: "", statement: statement}
stream = %DBConnection.PrepareStream{
conn: conn,
query: query,
params: params,
opts: opts
}
DBConnection.reduce(stream, acc, fun)
end
def member?(_, _), do: {:error, __MODULE__}
def count(_), do: {:error, __MODULE__}
def slice(_), do: {:error, __MODULE__}
end
end