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1.16.2
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1.15.2
1.15.1
1.15.0
1.14.2
1.14.1
1.14.0
1.13.6
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1.13.2
1.13.1
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1.13.0
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1.12.1
1.12.0
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1.10.2
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1.9.0
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1.8.2
1.8.1
1.8.0
1.7.2
1.7.1
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1.6.1
1.6.0
1.5.1
1.5.0
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1.5.0-rc.1
1.5.0-rc.0
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1.4.4
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1.4.2
1.4.1
1.4.0
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1.3.6
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1.2.4
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1.1.4
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1.1.2
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0.13.1
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0.12.1
0.12.0
0.11.3
0.11.2
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0.11.0
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0.8.4
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0.8.1
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0.7.0
0.6.0
0.5.3
0.5.2
0.5.1
0.5.0
0.4.4
0.4.3
0.4.2
0.4.1
Compose web applications with functions
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lib/plug/conn/unfetched.ex
defmodule Plug.Conn.Unfetched do
@moduledoc """
A struct used as default on unfetched fields.
"""
defstruct [:aspect]
@type t :: %__MODULE__{aspect: atom()}
defimpl Access do
def get(unfetched, key) do
raise_no_access(unfetched, key)
end
def get_and_update(unfetched, key, _value) do
raise_no_access(unfetched, key)
end
defp raise_no_access(%Plug.Conn.Unfetched{aspect: aspect}, key) do
raise ArgumentError, message:
"trying to access key #{inspect key} but they were not yet fetched. " <>
"Please call Plug.Conn.fetch_#{aspect} before accessing it"
end
end
end