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lib/absinthe/phase/schema/inline_functions.ex
defmodule Absinthe.Phase.Schema.InlineFunctions do
@moduledoc false
use Absinthe.Phase
alias Absinthe.Blueprint
alias Absinthe.Blueprint.Schema
alias Absinthe.Type
def run(blueprint, _opts) do
blueprint = Blueprint.prewalk(blueprint, &inline_functions(&1, blueprint.schema))
{:ok, blueprint}
end
def inline_functions(%Schema.SchemaDefinition{} = schema_def, schema) do
schema_def = %{
schema_def
| type_artifacts: Enum.map(schema_def.type_artifacts, &inline_functions(&1, schema)),
directive_artifacts:
Enum.map(schema_def.directive_artifacts, &inline_functions(&1, schema))
}
{:halt, schema_def}
end
def inline_functions(%type{identifier: _} = node, schema) do
type
|> Schema.functions()
# middleware gets handled specially
|> Enum.reject(&(&1 in [:middleware]))
|> Enum.reduce(node, &inline_function/2)
|> inline_middleware(schema)
end
def inline_functions(node, _) do
node
end
defp inline_function(attr, node) do
function = Type.function(node, attr)
if Absinthe.Utils.escapable?(function) do
%{node | attr => function}
else
node
end
end
def inline_middleware(%type_name{} = type, schema)
when type_name in [Type.Object, Type.Union, Type.Interface] do
Map.update!(type, :fields, fn fields ->
fields =
Enum.map(fields, fn {field_ident, field} ->
{field_ident, inline_functions(field, schema)}
end)
Map.new(fields, fn
{field_ident, %{middleware: middleware} = field} ->
expanded_middleware = Absinthe.Middleware.expand(schema, middleware, field, type)
if Absinthe.Utils.escapable?(expanded_middleware) do
{field_ident, %{field | middleware: expanded_middleware}}
else
middleware_shim = {
{Absinthe.Middleware, :shim},
{type.identifier, field.identifier, middleware}
}
{field_ident, %{field | middleware: [middleware_shim]}}
end
{field_ident, field} ->
middleware = Absinthe.Middleware.expand(schema, field.middleware, field, type)
{field_ident, %{field | middleware: middleware}}
end)
end)
end
def inline_middleware(type, _) do
type
end
end