Returns the infos from an AST representing an alias expression.

The function returns 3-tuple containing the alias, the multi part and the :as.

examples

Examples

iex> ast = quote do
...>   alias Foo.Bar
...> end
iex> alias_info(ast)
{Foo.Bar, [], nil}

iex> ast = quote do
...>   alias Foo.{Bar, Baz}
...> end
iex> alias_info(ast)
{Foo, [Bar, Baz], nil}

iex> ast = quote do
...>   alias Foo, as: Baz
...> end
iex> alias_info(ast)
{Foo, [], Baz}

@spec aliases_concat({:__aliases__, Macro.metadata(), [atom()]}) :: module()

Concatinates the aliases of an :__aliases__ tuple.

examples

Examples

iex> aliases_concat({:__aliases__, [], [:Alpha, :Bravo]})
Alpha.Bravo

@spec get_newlines(Macro.t()) :: integer()

Returns the newlines value from meta[:end_of_expression], or nil.

@spec mfa({{:., keyword(), list()}, Macro.metadata(), Macro.t()}) ::
  {module(), atom(), non_neg_integer()}

Returns a mfa-tuple for the given .-call.

@spec name(atom() | [atom()]) :: String.t()

Converts AST representing a name to a string.

This function suppresses the prfix "Elixir.".

examples

Examples

iex> name([Recode, AST])
"Recode.AST"

iex> name(Recode.AST)
"Recode.AST"

@spec put_newlines({term(), Macro.metadata(), Macro.t()}, integer()) ::
  {term(), keyword(), list()}

Puts the given value newlines under the key nevlines in meta[:end_of_expression].

@spec update_call(Macro.t(), updates :: keyword()) :: Macro.t()

Update a function call.

The keyword list updates can have the keys name, meta and args.

examples

Examples

iex> ast = quote do
...>   foo(x)
...> end
iex> update_call(ast, name: :bar)
{:bar, [], [{:x, [], Recode.ASTTest}]}

@spec update_definition(Macro.t(), updates :: keyword()) :: Macro.t()

Updates the AST representing a definition.

The keyword list updates can have the keys name, meta and args.

examples

Examples

iex> ast = quote do
...>   def foo(x), do: x
...> end
iex> update_definition(ast, name: :bar)
{:def, [context: Recode.ASTTest, import: Kernel],
 [
   {:bar, [context: Recode.ASTTest], [{:x, [], Recode.ASTTest}]},
   [do: {:x, [], Recode.ASTTest}]
 ]}
iex> update_definition(ast, meta: [])
{:def, [],
 [
   {:foo, [context: Recode.ASTTest], [{:x, [], Recode.ASTTest}]},
   [do: {:x, [], Recode.ASTTest}]
 ]}
iex> update_definition(ast, args: [{:y, [], Recode.ASTTest}], meta: [])
{:def, [],
 [
   {:foo, [context: Recode.ASTTest], [{:y, [], Recode.ASTTest}]},
   [do: {:x, [], Recode.ASTTest}]
 ]}

@spec update_dot_call(Macro.t(), updates :: keyword()) :: Macro.t()

Update a dotted function call.

examples

Examples

iex> ast = quote do
...>   Foo.foo(x)
...> end
iex> update_dot_call(ast, name: :bar)
{{:., [], [{:__aliases__, [alias: false], [:Foo]}, :bar]}, [], [{:x, [], Recode.ASTTest}]}

@spec update_spec(Macro.t(), updates :: keyword()) :: Macro.t()

Updates a spec.

The keyword list updates can have the keys name, meta, args and return.

examples

Examples

iex> ast = quote do
...>   @spec foo(integer()) :: integer()
...> end
{:@, [context: Recode.ASTTest, import: Kernel],
 [
   {:spec, [context: Recode.ASTTest],
    [{:"::", [], [{:foo, [], [{:integer, [], []}]}, {:integer, [], []}]}]}
 ]}
iex> update_spec(ast, meta: [], name: :bar, return: {:term, [], []})
{:@, [],
 [
   {:spec, [context: Recode.ASTTest],
    [{:"::", [], [{:bar, [], [{:integer, [], []}]}, {:term, [], []}]}]}
 ]}