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absinthe
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Files
lib/absinthe/utils.ex
defmodule Absinthe.Utils do
@doc """
Camelize a word, respecting underscore prefixes.
## Examples
With an uppercase first letter:
```
iex> camelize("foo_bar")
"FooBar"
iex> camelize("foo")
"Foo"
iex> camelize("__foo_bar")
"__FooBar"
iex> camelize("__foo")
"__Foo"
iex> camelize("_foo")
"_Foo"
```
With a lowercase first letter:
```
iex> camelize("foo_bar", lower: true)
"fooBar"
iex> camelize("foo", lower: true)
"foo"
iex> camelize("__foo_bar", lower: true)
"__fooBar"
iex> camelize("__foo", lower: true)
"__foo"
iex> camelize("_foo", lower: true)
"_foo"
```
"""
@spec camelize(binary, Keyword.t) :: binary
def camelize(word, opts \\ [])
def camelize("_" <> word, opts) do
"_" <> camelize(word, opts)
end
def camelize(word, opts) do
case opts |> Enum.into(%{}) do
%{lower: true} ->
{first, rest} = String.split_at(Macro.camelize(word), 1)
String.downcase(first) <> rest
_ ->
Macro.camelize(word)
end
end
@doc false
def placement_docs([{_, placement} | _]) do
placement
|> do_placement_docs
end
defp do_placement_docs([toplevel: true]) do
"""
Top level in module.
"""
end
defp do_placement_docs([toplevel: false]) do
"""
Allowed under any block. Not allowed to be top level
"""
end
defp do_placement_docs([under: under]) when is_list(under) do
under = under
|> Enum.sort_by(&(&1))
|> Enum.map(&"`#{&1}`")
|> Enum.join(" ")
"""
Allowed under: #{under}
"""
end
defp do_placement_docs([under: under]) do
do_placement_docs([under: [under]])
end
@doc false
def describe_builtin_module(module) do
title = module
|> Module.split
|> List.last
types = module.__absinthe_types__
|> Map.keys
|> Enum.sort_by(&(&1))
|> Enum.map(fn identifier ->
type = module.__absinthe_type__(identifier)
"""
## #{type.name}
Identifier: `#{inspect identifier}`
#{type.description}
"""
end)
directives = module.__absinthe_directives__
|> Map.keys
|> Enum.sort_by(&(&1))
|> Enum.map(fn identifier ->
directive = module.__absinthe_directive__(identifier)
"""
## #{directive.name}
Identifier: `#{inspect identifier}`
#{directive.description}
"""
end)
"""
# #{title}
#{types ++ directives}
"""
end
end