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RFC: Schema Language Directives
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This implements adding directives to the experimental schema language by extending the *locations* a directive can be used.

Notice that this provides no semantic meaning to these directives - they are purely a mechanism for annotating an AST - however future directives which contain semantic meaning may be introduced in the future (the first will be `@deprecated`).
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@leebyron
leebyron committed May 4, 2016
1 parent 51362e7 commit be4697d
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Showing 13 changed files with 402 additions and 52 deletions.
23 changes: 23 additions & 0 deletions src/language/__tests__/schema-kitchen-sink.graphql
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Original file line number Diff line number Diff line change
Expand Up @@ -19,29 +19,52 @@ type Foo implements Bar {
six(argument: InputType = {key: "value"}): Type
}

type AnnotatedObject @onObject(arg: "value") {
annotatedField(arg: Type = "default" @onArg): Type @onField
}

interface Bar {
one: Type
four(argument: String = "string"): String
}

interface AnnotatedInterface @onInterface {
annotatedField(arg: Type @onArg): Type @onField
}

union Feed = Story | Article | Advert

union AnnotatedUnion @onUnion = A | B

scalar CustomScalar

scalar AnnotatedScalar @onScalar

enum Site {
DESKTOP
MOBILE
}

enum AnnotatedEnum @onEnum {
ANNOTATED_VALUE @onEnumValue
OTHER_VALUE
}

input InputType {
key: String!
answer: Int = 42
}

input AnnotatedInput @onInputObjectType {
annotatedField: Type @onField
}

extend type Foo {
seven(argument: [String]): Type
}

extend type Foo @onType {}

type NoFields {}

directive @skip(if: Boolean!) on FIELD | FRAGMENT_SPREAD | INLINE_FRAGMENT
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19 changes: 19 additions & 0 deletions src/language/__tests__/schema-parser-test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -52,6 +52,7 @@ function fieldNodeWithArgs(name, type, args, loc) {
name,
arguments: args,
type,
directives: [],
loc,
};
}
Expand All @@ -60,6 +61,7 @@ function enumValueNode(name, loc) {
return {
kind: 'EnumValueDefinition',
name: nameNode(name, loc),
directives: [],
loc,
};
}
Expand All @@ -70,6 +72,7 @@ function inputValueNode(name, type, defaultValue, loc) {
name,
type,
defaultValue,
directives: [],
loc,
};
}
Expand All @@ -89,6 +92,7 @@ type Hello {
kind: 'ObjectTypeDefinition',
name: nameNode('Hello', loc(6, 11)),
interfaces: [],
directives: [],
fields: [
fieldNode(
nameNode('world', loc(16, 21)),
Expand Down Expand Up @@ -120,6 +124,7 @@ extend type Hello {
kind: 'ObjectTypeDefinition',
name: nameNode('Hello', loc(13, 18)),
interfaces: [],
directives: [],
fields: [
fieldNode(
nameNode('world', loc(23, 28)),
Expand Down Expand Up @@ -151,6 +156,7 @@ type Hello {
kind: 'ObjectTypeDefinition',
name: nameNode('Hello', loc(6, 11)),
interfaces: [],
directives: [],
fields: [
fieldNode(
nameNode('world', loc(16, 21)),
Expand Down Expand Up @@ -182,6 +188,7 @@ type Hello {
kind: 'ObjectTypeDefinition',
name: nameNode('Hello', loc(5, 10)),
interfaces: [ typeNode('World', loc(22, 27)) ],
directives: [],
fields: [],
loc: loc(0, 31),
}
Expand All @@ -205,6 +212,7 @@ type Hello {
typeNode('Wo', loc(22, 24)),
typeNode('rld', loc(26, 29))
],
directives: [],
fields: [],
loc: loc(0, 33),
}
Expand All @@ -224,6 +232,7 @@ type Hello {
{
kind: 'EnumTypeDefinition',
name: nameNode('Hello', loc(5, 10)),
directives: [],
values: [ enumValueNode('WORLD', loc(13, 18)) ],
loc: loc(0, 20),
}
Expand All @@ -243,6 +252,7 @@ type Hello {
{
kind: 'EnumTypeDefinition',
name: nameNode('Hello', loc(5, 10)),
directives: [],
values: [
enumValueNode('WO', loc(13, 15)),
enumValueNode('RLD', loc(17, 20)),
Expand All @@ -268,6 +278,7 @@ interface Hello {
{
kind: 'InterfaceTypeDefinition',
name: nameNode('Hello', loc(11, 16)),
directives: [],
fields: [
fieldNode(
nameNode('world', loc(21, 26)),
Expand Down Expand Up @@ -297,6 +308,7 @@ type Hello {
kind: 'ObjectTypeDefinition',
name: nameNode('Hello', loc(6, 11)),
interfaces: [],
directives: [],
fields: [
fieldNodeWithArgs(
nameNode('world', loc(16, 21)),
Expand Down Expand Up @@ -334,6 +346,7 @@ type Hello {
kind: 'ObjectTypeDefinition',
name: nameNode('Hello', loc(6, 11)),
interfaces: [],
directives: [],
fields: [
fieldNodeWithArgs(
nameNode('world', loc(16, 21)),
Expand Down Expand Up @@ -375,6 +388,7 @@ type Hello {
kind: 'ObjectTypeDefinition',
name: nameNode('Hello', loc(6, 11)),
interfaces: [],
directives: [],
fields: [
fieldNodeWithArgs(
nameNode('world', loc(16, 21)),
Expand Down Expand Up @@ -416,6 +430,7 @@ type Hello {
kind: 'ObjectTypeDefinition',
name: nameNode('Hello', loc(6, 11)),
interfaces: [],
directives: [],
fields: [
fieldNodeWithArgs(
nameNode('world', loc(16, 21)),
Expand Down Expand Up @@ -455,6 +470,7 @@ type Hello {
{
kind: 'UnionTypeDefinition',
name: nameNode('Hello', loc(6, 11)),
directives: [],
types: [ typeNode('World', loc(14, 19)) ],
loc: loc(0, 19),
}
Expand All @@ -474,6 +490,7 @@ type Hello {
{
kind: 'UnionTypeDefinition',
name: nameNode('Hello', loc(6, 11)),
directives: [],
types: [
typeNode('Wo', loc(14, 16)),
typeNode('Rld', loc(19, 22)),
Expand All @@ -496,6 +513,7 @@ type Hello {
{
kind: 'ScalarTypeDefinition',
name: nameNode('Hello', loc(7, 12)),
directives: [],
loc: loc(0, 12),
}
],
Expand All @@ -517,6 +535,7 @@ input Hello {
{
kind: 'InputObjectTypeDefinition',
name: nameNode('Hello', loc(7, 12)),
directives: [],
fields: [
inputValueNode(
nameNode('world', loc(17, 22)),
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23 changes: 23 additions & 0 deletions src/language/__tests__/schema-printer-test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -65,29 +65,52 @@ type Foo implements Bar {
six(argument: InputType = {key: "value"}): Type
}
type AnnotatedObject @onObject(arg: "value") {
annotatedField(arg: Type = "default" @onArg): Type @onField
}
interface Bar {
one: Type
four(argument: String = "string"): String
}
interface AnnotatedInterface @onInterface {
annotatedField(arg: Type @onArg): Type @onField
}
union Feed = Story | Article | Advert
union AnnotatedUnion @onUnion = A | B
scalar CustomScalar
scalar AnnotatedScalar @onScalar
enum Site {
DESKTOP
MOBILE
}
enum AnnotatedEnum @onEnum {
ANNOTATED_VALUE @onEnumValue
OTHER_VALUE
}
input InputType {
key: String!
answer: Int = 42
}
input AnnotatedInput @onInputObjectType {
annotatedField: Type @onField
}
extend type Foo {
seven(argument: [String]): Type
}
extend type Foo @onType {}
type NoFields {}
directive @skip(if: Boolean!) on FIELD | FRAGMENT_SPREAD | INLINE_FRAGMENT
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9 changes: 9 additions & 0 deletions src/language/ast.js
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Original file line number Diff line number Diff line change
Expand Up @@ -289,13 +289,15 @@ export type ScalarTypeDefinition = {
kind: 'ScalarTypeDefinition';
loc?: ?Location;
name: Name;
directives?: ?Array<Directive>;
}

export type ObjectTypeDefinition = {
kind: 'ObjectTypeDefinition';
loc?: ?Location;
name: Name;
interfaces?: ?Array<NamedType>;
directives?: ?Array<Directive>;
fields: Array<FieldDefinition>;
}

Expand All @@ -305,6 +307,7 @@ export type FieldDefinition = {
name: Name;
arguments: Array<InputValueDefinition>;
type: Type;
directives?: ?Array<Directive>;
}

export type InputValueDefinition = {
Expand All @@ -313,39 +316,45 @@ export type InputValueDefinition = {
name: Name;
type: Type;
defaultValue?: ?Value;
directives?: ?Array<Directive>;
}

export type InterfaceTypeDefinition = {
kind: 'InterfaceTypeDefinition';
loc?: ?Location;
name: Name;
directives?: ?Array<Directive>;
fields: Array<FieldDefinition>;
}

export type UnionTypeDefinition = {
kind: 'UnionTypeDefinition';
loc?: ?Location;
name: Name;
directives?: ?Array<Directive>;
types: Array<NamedType>;
}

export type EnumTypeDefinition = {
kind: 'EnumTypeDefinition';
loc?: ?Location;
name: Name;
directives?: ?Array<Directive>;
values: Array<EnumValueDefinition>;
}

export type EnumValueDefinition = {
kind: 'EnumValueDefinition';
loc?: ?Location;
name: Name;
directives?: ?Array<Directive>;
}

export type InputObjectTypeDefinition = {
kind: 'InputObjectTypeDefinition';
loc?: ?Location;
name: Name;
directives?: ?Array<Directive>;
fields: Array<InputValueDefinition>;
}

Expand Down
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