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Add support for custom GraphQL scalar coercion #1659

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merged 3 commits into from
Nov 7, 2023
Merged

Add support for custom GraphQL scalar coercion #1659

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c948100
Add support for custom GraphQL scalar type coercion
nicoco007 Sep 18, 2023
43ed55e
Add support for `GraphQL::Types::BigInt`
nicoco007 Sep 18, 2023
f35a20e
Add safety for Void and NotTyped return types
paracycle Nov 7, 2023
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12 changes: 11 additions & 1 deletion lib/tapioca/dsl/helpers/graphql_type_helper.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@ def type_for(argument)
type_for_constant(Float)
when GraphQL::Types::ID.singleton_class, GraphQL::Types::String.singleton_class
type_for_constant(String)
when GraphQL::Types::Int.singleton_class
when GraphQL::Types::Int.singleton_class, GraphQL::Types::BigInt.singleton_class
type_for_constant(Integer)
when GraphQL::Types::ISO8601Date.singleton_class
type_for_constant(Date)
Expand All @@ -45,6 +45,16 @@ def type_for(argument)
else
"T.any(#{value_types.join(", ")})"
end
when GraphQL::Schema::Scalar.singleton_class
method = Runtime::Reflection.method_of(unwrapped_type, :coerce_input)
signature = Runtime::Reflection.signature_of(method)
return_type = signature&.return_type

if return_type && !(T::Private::Types::Void === return_type || T::Private::Types::NotTyped === return_type)
return_type.to_s
else
"T.untyped"
end
when GraphQL::Schema::InputObject.singleton_class
type_for_constant(unwrapped_type)
when GraphQL::Schema::NonNull.singleton_class
Expand Down
64 changes: 61 additions & 3 deletions spec/tapioca/dsl/compilers/graphql_mutation_spec.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -144,6 +144,7 @@ class CreateComment < GraphQL::Schema::Mutation
argument :float, Float, required: true
argument :id, ID, required: true
argument :int, Int, required: true
argument :big_int, GraphQL::Types::BigInt, required: true
argument :date, GraphQL::Types::ISO8601Date, required: true
argument :datetime, GraphQL::Types::ISO8601DateTime, required: true
argument :json, GraphQL::Types::JSON, required: true
Expand All @@ -153,7 +154,7 @@ class CreateComment < GraphQL::Schema::Mutation
argument :input_object, CreateCommentInput, required: true
argument :custom_scalar, CustomScalar, required: true

def resolve(boolean:, float:, id:, int:, date:, datetime:, json:, string:, enum_a:, enum_b:, input_object:, custom_scalar:)
def resolve(boolean:, float:, id:, int:, big_int:, date:, datetime:, json:, string:, enum_a:, enum_b:, input_object:, custom_scalar:)
# ...
end
end
Expand All @@ -163,8 +164,8 @@ def resolve(boolean:, float:, id:, int:, date:, datetime:, json:, string:, enum_
# typed: strong

class CreateComment
sig { params(boolean: T::Boolean, float: ::Float, id: ::String, int: ::Integer, date: ::Date, datetime: ::Time, json: T::Hash[::String, T.untyped], string: ::String, enum_a: ::String, enum_b: T.any(::String, ::Symbol), input_object: ::CreateCommentInput, custom_scalar: ::CustomScalar).returns(T.untyped) }
def resolve(boolean:, float:, id:, int:, date:, datetime:, json:, string:, enum_a:, enum_b:, input_object:, custom_scalar:); end
sig { params(boolean: T::Boolean, float: ::Float, id: ::String, int: ::Integer, big_int: ::Integer, date: ::Date, datetime: ::Time, json: T::Hash[::String, T.untyped], string: ::String, enum_a: ::String, enum_b: T.any(::String, ::Symbol), input_object: ::CreateCommentInput, custom_scalar: T.untyped).returns(T.untyped) }
def resolve(boolean:, float:, id:, int:, big_int:, date:, datetime:, json:, string:, enum_a:, enum_b:, input_object:, custom_scalar:); end
end
RBI

Expand Down Expand Up @@ -201,6 +202,63 @@ def resolve(loaded_argument:, loaded_arguments:, custom_name:, optional_loaded_a

assert_equal(expected, rbi_for(:CreateComment))
end

it "generates correct RBI for custom scalars with return types" do
add_ruby_file("create_comment.rb", <<~RUBY)
class CustomScalar; end

class CustomScalarType < GraphQL::Schema::Scalar
class << self
extend T::Sig

sig { params(value: T.untyped, context: GraphQL::Query::Context).returns(CustomScalar) }
def coerce_input(value, context)
CustomScalar.new
end
end
end

class BrokenScalarType < GraphQL::Schema::Scalar
class << self
extend T::Sig

sig { params(value: T.untyped, context: GraphQL::Query::Context).void }
def coerce_input(value, context)
end
end
end

class NoSigScalarType < GraphQL::Schema::Scalar
class << self
def coerce_input(value, context)
end
end
end

class CreateComment < GraphQL::Schema::Mutation
argument :custom_scalar, CustomScalarType, required: true
argument :custom_scalar_array, [CustomScalarType], required: true
argument :broken_scalar, BrokenScalarType, required: true
argument :no_sig_scalar, NoSigScalarType, required: true
argument :optional_custom_scalar, CustomScalarType, required: false

def resolve(custom_scalar:, custom_scalar_array:, broken_scalar:, no_sig_scalar:, optional_custom_scalar: nil)
# ...
end
end
RUBY

expected = <<~RBI
# typed: strong

class CreateComment
sig { params(custom_scalar: ::CustomScalar, custom_scalar_array: T::Array[::CustomScalar], broken_scalar: T.untyped, no_sig_scalar: T.untyped, optional_custom_scalar: T.nilable(::CustomScalar)).returns(T.untyped) }
def resolve(custom_scalar:, custom_scalar_array:, broken_scalar:, no_sig_scalar:, optional_custom_scalar: T.unsafe(nil)); end
end
RBI

assert_equal(expected, rbi_for(:CreateComment))
end
end
end
end
Expand Down
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