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Internal slot properties (#7947)

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* Support internalSlots to babel-types and babel-generator

* Parsing support for internal slot properties

* Print internal slots in babel-generator

* Add whitespace before first internal slot property
This commit is contained in:
Sam Goldman 2018-05-17 04:48:12 +01:00 committed by Brian Ng
parent 8dcfabd0d7
commit b396cdcbe5
111 changed files with 1232 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
packages/babel-generator/src/generators/flow.js
View File

@ -384,6 +384,7 @@ export function ObjectTypeAnnotation(node: Object) {
const props = node.properties.concat(
node.callProperties || [],
node.indexers || [],
node.internalSlots || [],
);
if (props.length) {
@ -413,6 +414,23 @@ export function ObjectTypeAnnotation(node: Object) {
}
}
export function ObjectTypeInternalSlot(node: Object) {
if (node.static) {
this.word("static");
this.space();
}
this.token("[");
this.token("[");
this.print(node.id, node);
this.token("]");
this.token("]");
if (!node.method) {
this.token(":");
this.space();
}
this.print(node.value, node);
}
export function ObjectTypeCallProperty(node: Object) {
if (node.static) {
this.word("static");

16
packages/babel-generator/src/node/whitespace.js
View File

@ -209,6 +209,22 @@ nodes.ObjectTypeIndexer = function(node: Object, parent): ?WhitespaceObject {
}
};
nodes.ObjectTypeInternalSlot = function(
node: Object,
parent,
): ?WhitespaceObject {
if (
parent.internalSlots[0] === node &&
(!parent.properties || !parent.properties.length) &&
(!parent.callProperties || !parent.callProperties.length) &&
(!parent.indexers || !parent.indexers.length)
) {
return {
before: true,
};
}
};
/**
* Returns lists from node types that need whitespace.
*/

6
packages/babel-generator/test/fixtures/flow/internal-slot/input.js vendored Normal file
View File

@ -0,0 +1,6 @@
declare class C { static [[foo]]: T }
declare class C { [[foo]]: T }
interface T { [[foo]]: X }
interface T { [[foo]](): X }
type T = { [[foo]]: X }
type T = { [[foo]](): X }

18
packages/babel-generator/test/fixtures/flow/internal-slot/output.js vendored Normal file
View File

@ -0,0 +1,18 @@
declare class C {
static [[foo]]: T
}
declare class C {
[[foo]]: T
}
interface T {
[[foo]]: X
}
interface T {
[[foo]]() => X
}
type T = {
[[foo]]: X
};
type T = {
[[foo]]() => X
};

3
packages/babel-generator/test/index.js
View File

@ -304,6 +304,7 @@ describe("programmatic generation", function() {
[t.objectTypeProperty(t.identifier("bar"), t.stringTypeAnnotation())],
null,
null,
null,
);
const output = generate(objectStatement).code;
@ -317,6 +318,7 @@ describe("programmatic generation", function() {
[t.objectTypeProperty(t.identifier("bar"), t.stringTypeAnnotation())],
null,
null,
null,
true,
);
@ -336,6 +338,7 @@ describe("programmatic generation", function() {
t.numberTypeAnnotation(),
),
],
null,
);
const output = generate(objectStatement).code;

22
packages/babel-types/src/definitions/flow.js
View File

@ -248,15 +248,22 @@ defineType("NumberTypeAnnotation", {
});
defineType("ObjectTypeAnnotation", {
visitor: ["properties", "indexers", "callProperties"],
visitor: ["properties", "indexers", "callProperties", "internalSlots"],
aliases: ["Flow", "FlowType"],
builder: ["properties", "indexers", "callProperties", "exact"],
builder: [
"properties",
"indexers",
"callProperties",
"internalSlots",
"exact",
],
fields: {
properties: validate(
arrayOfType(["ObjectTypeProperty", "ObjectTypeSpreadProperty"]),
),
indexers: validateOptional(arrayOfType("ObjectTypeIndexer")),
callProperties: validateOptional(arrayOfType("ObjectTypeCallProperty")),
internalSlots: validateOptional(arrayOfType("ObjectTypeInternalSlot")),
exact: {
validate: assertValueType("boolean"),
default: false,
@ -264,6 +271,17 @@ defineType("ObjectTypeAnnotation", {
},
});
defineType("ObjectTypeInternalSlot", {
visitor: ["id", "value", "static", "method"],
aliases: ["Flow", "UserWhitespacable"],
fields: {
id: validateType("Identifier"),
value: validateType("FlowType"),
static: validate(assertValueType("boolean")),
method: validate(assertValueType("boolean")),
},
});
defineType("ObjectTypeCallProperty", {
visitor: ["value"],
aliases: ["Flow", "UserWhitespacable"],

41
packages/babylon/src/plugins/flow.js
View File

@ -621,7 +621,7 @@ export default (superClass: Class<Parser>): Class<Parser> =>
): N.FlowObjectTypeIndexer {
node.static = isStatic;
this.expect(tt.bracketL);
// Note: bracketL has already been consumed
if (this.lookahead().type === tt.colon) {
node.id = this.flowParseObjectPropertyKey();
node.key = this.flowParseTypeInitialiser();
@ -636,6 +636,27 @@ export default (superClass: Class<Parser>): Class<Parser> =>
return this.finishNode(node, "ObjectTypeIndexer");
}
flowParseObjectTypeInternalSlot(
node: N.FlowObjectTypeInternalSlot,
isStatic: boolean,
): N.FlowObjectTypeInternalSlot {
node.static = isStatic;
// Note: both bracketL have already been consumed
node.id = this.flowParseObjectPropertyKey();
this.expect(tt.bracketR);
this.expect(tt.bracketR);
if (this.isRelational("<") || this.match(tt.parenL)) {
node.method = true;
node.value = this.flowParseObjectTypeMethodish(
this.startNodeAt(node.start, node.loc.start),
);
} else {
node.method = false;
node.value = this.flowParseTypeInitialiser();
}
return this.finishNode(node, "ObjectTypeInternalSlot");
}
flowParseObjectTypeMethodish(
node: N.FlowFunctionTypeAnnotation,
): N.FlowFunctionTypeAnnotation {
@ -689,6 +710,7 @@ export default (superClass: Class<Parser>): Class<Parser> =>
nodeStart.callProperties = [];
nodeStart.properties = [];
nodeStart.indexers = [];
nodeStart.internalSlots = [];
let endDelim;
let exact;
@ -720,10 +742,19 @@ export default (superClass: Class<Parser>): Class<Parser> =>
const variance = this.flowParseVariance();
if (this.match(tt.bracketL)) {
nodeStart.indexers.push(
this.flowParseObjectTypeIndexer(node, isStatic, variance),
);
if (this.eat(tt.bracketL)) {
if (this.eat(tt.bracketL)) {
if (variance) {
this.unexpected(variance.start);
}
nodeStart.internalSlots.push(
this.flowParseObjectTypeInternalSlot(node, isStatic),
);
} else {
nodeStart.indexers.push(
this.flowParseObjectTypeIndexer(node, isStatic, variance),
);
}
} else if (this.match(tt.parenL) || this.isRelational("<")) {
if (variance) {
this.unexpected(variance.start);

1
packages/babylon/src/types.js
View File

@ -915,6 +915,7 @@ export type FlowInterfaceExtends = Node;
export type FlowTypeAlias = Node;
export type FlowOpaqueType = Node;
export type FlowObjectTypeIndexer = Node;
export type FlowObjectTypeInternalSlot = Node;
export type FlowFunctionTypeAnnotation = Node;
export type FlowObjectTypeProperty = Node;
export type FlowObjectTypeSpreadProperty = Node;

1
packages/babylon/test/fixtures/flow/call-properties/1/output.json vendored
View File

@ -154,6 +154,7 @@
],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/call-properties/2/output.json vendored
View File

@ -154,6 +154,7 @@
],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/call-properties/3/output.json vendored
View File

@ -305,6 +305,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/call-properties/4/output.json vendored
View File

@ -254,6 +254,7 @@
],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/call-properties/5/output.json vendored
View File

@ -130,6 +130,7 @@
],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/class-properties/getter-setter/output.json vendored
View File

@ -654,6 +654,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/class-properties/named-static/output.json vendored
View File

@ -151,6 +151,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/comment/02-type-include/output.json vendored
View File

@ -234,6 +234,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/comment/03-type-flow-include/output.json vendored
View File

@ -234,6 +234,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-class/implements-multiple/output.json vendored
View File

@ -147,6 +147,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-class/implements-with-mixin/output.json vendored
View File

@ -148,6 +148,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-class/implements/output.json vendored
View File

@ -114,6 +114,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-class/mixins-multiple/output.json vendored
View File

@ -147,6 +147,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-class/mixins/output.json vendored
View File

@ -114,6 +114,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-export/export-class/output.json vendored
View File

@ -262,6 +262,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
},

1
packages/babylon/test/fixtures/flow/declare-export/export-default-class/output.json vendored
View File

@ -94,6 +94,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
},

1
packages/babylon/test/fixtures/flow/declare-export/export-interface-and-var/output.json vendored
View File

@ -145,6 +145,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
},

1
packages/babylon/test/fixtures/flow/declare-export/export-interface-commonjs/output.json vendored
View File

@ -145,6 +145,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
},

1
packages/babylon/test/fixtures/flow/declare-export/export-interface/output.json vendored
View File

@ -145,6 +145,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
},

1
packages/babylon/test/fixtures/flow/declare-module/10/output.json vendored
View File

@ -143,6 +143,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-module/5/output.json vendored
View File

@ -196,6 +196,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-module/6/output.json vendored
View File

@ -189,6 +189,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-statements/10/output.json vendored
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@ -202,6 +202,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-statements/11/output.json vendored
View File

@ -145,6 +145,7 @@
"variance": null
}
],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-statements/12/output.json vendored
View File

@ -130,6 +130,7 @@
],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-statements/13/output.json vendored
View File

@ -196,6 +196,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-statements/14/output.json vendored
View File

@ -241,6 +241,7 @@
"variance": null
}
],
"internalSlots": [],
"exact": false
}
}

2
packages/babylon/test/fixtures/flow/declare-statements/15/output.json vendored
View File

@ -133,6 +133,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
},
@ -292,6 +293,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-statements/16/output.json vendored
View File

@ -178,6 +178,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-statements/17/output.json vendored
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@ -237,6 +237,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

2
packages/babylon/test/fixtures/flow/declare-statements/18/output.json vendored
View File

@ -130,6 +130,7 @@
],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
},
@ -235,6 +236,7 @@
],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-statements/7/output.json vendored
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@ -265,6 +265,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-statements/8/output.json vendored
View File

@ -80,6 +80,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/declare-statements/9/output.json vendored
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@ -249,6 +249,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/def-site-variance/1/output.json vendored
View File

@ -420,6 +420,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/interfaces-module-and-script/1/output.json vendored
View File

@ -80,6 +80,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/interfaces-module-and-script/10/output.json vendored
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@ -235,6 +235,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/interfaces-module-and-script/2/output.json vendored
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@ -114,6 +114,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/interfaces-module-and-script/3/output.json vendored
View File

@ -278,6 +278,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/interfaces-module-and-script/4/output.json vendored
View File

@ -151,6 +151,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/interfaces-module-and-script/5/output.json vendored
View File

@ -198,6 +198,7 @@
"variance": null
}
],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/interfaces-module-and-script/id-reserved-value/output.json vendored
View File

@ -80,6 +80,7 @@
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/interfaces-module-and-script/identifier-named-static-optional/output.json vendored
View File

@ -133,6 +133,7 @@
}
],
"indexers": [],
"internalSlots": [],
"exact": false
}
}

1
packages/babylon/test/fixtures/flow/internal-slot/declare-class-static/input.js vendored Normal file
View File

@ -0,0 +1 @@
declare class C { static [[foo]]: T }

158
packages/babylon/test/fixtures/flow/internal-slot/declare-class-static/output.json vendored Normal file
View File

@ -0,0 +1,158 @@
{
"type": "File",
"start": 0,
"end": 37,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 37
}
},
"program": {
"type": "Program",
"start": 0,
"end": 37,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 37
}
},
"sourceType": "module",
"body": [
{
"type": "DeclareClass",
"start": 0,
"end": 37,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 37
}
},
"id": {
"type": "Identifier",
"start": 14,
"end": 15,
"loc": {
"start": {
"line": 1,
"column": 14
},
"end": {
"line": 1,
"column": 15
},
"identifierName": "C"
},
"name": "C"
},
"typeParameters": null,
"extends": [],
"implements": [],
"mixins": [],
"body": {
"type": "ObjectTypeAnnotation",
"start": 16,
"end": 37,
"loc": {
"start": {
"line": 1,
"column": 16
},
"end": {
"line": 1,
"column": 37
}
},
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [
{
"type": "ObjectTypeInternalSlot",
"start": 18,
"end": 35,
"loc": {
"start": {
"line": 1,
"column": 18
},
"end": {
"line": 1,
"column": 35
}
},
"static": true,
"id": {
"type": "Identifier",
"start": 27,
"end": 30,
"loc": {
"start": {
"line": 1,
"column": 27
},
"end": {
"line": 1,
"column": 30
},
"identifierName": "foo"
},
"name": "foo"
},
"method": false,
"value": {
"type": "GenericTypeAnnotation",
"start": 34,
"end": 35,
"loc": {
"start": {
"line": 1,
"column": 34
},
"end": {
"line": 1,
"column": 35
}
},
"typeParameters": null,
"id": {
"type": "Identifier",
"start": 34,
"end": 35,
"loc": {
"start": {
"line": 1,
"column": 34
},
"end": {
"line": 1,
"column": 35
},
"identifierName": "T"
},
"name": "T"
}
}
}
],
"exact": false
}
}
],
"directives": []
}
}

1
packages/babylon/test/fixtures/flow/internal-slot/declare-class/input.js vendored Normal file
View File

@ -0,0 +1 @@
declare class C { [[foo]]: T }

158
packages/babylon/test/fixtures/flow/internal-slot/declare-class/output.json vendored Normal file
View File

@ -0,0 +1,158 @@
{
"type": "File",
"start": 0,
"end": 30,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 30
}
},
"program": {
"type": "Program",
"start": 0,
"end": 30,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 30
}
},
"sourceType": "module",
"body": [
{
"type": "DeclareClass",
"start": 0,
"end": 30,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 30
}
},
"id": {
"type": "Identifier",
"start": 14,
"end": 15,
"loc": {
"start": {
"line": 1,
"column": 14
},
"end": {
"line": 1,
"column": 15
},
"identifierName": "C"
},
"name": "C"
},
"typeParameters": null,
"extends": [],
"implements": [],
"mixins": [],
"body": {
"type": "ObjectTypeAnnotation",
"start": 16,
"end": 30,
"loc": {
"start": {
"line": 1,
"column": 16
},
"end": {
"line": 1,
"column": 30
}
},
"callProperties": [],
"properties": [],
"indexers": [],
"internalSlots": [
{
"type": "ObjectTypeInternalSlot",
"start": 18,
"end": 28,
"loc": {
"start": {
"line": 1,
"column": 18
},
"end": {
"line": 1,
"column": 28
}
},
"static": false,
"id": {
"type": "Identifier",
"start": 20,
"end": 23,
"loc": {
"start": {
"line": 1,
"column": 20
},
"end": {
"line": 1,
"column": 23
},
"identifierName": "foo"
},
"name": "foo"
},
"method": false,
"value": {
"type": "GenericTypeAnnotation",
"start": 27,
"end": 28,
"loc": {
"start": {
"line": 1,
"column": 27
},
"end": {
"line": 1,
"column": 28
}
},
"typeParameters": null,
"id": {
"type": "Identifier",
"start": 27,
"end": 28,
"loc": {
"start": {
"line": 1,
"column": 27
},
"end": {
"line": 1,
"column": 28
},
"identifierName": "T"
},
"name": "T"
}
}
}
],
"exact": false
}
}
],
"directives": []
}
}

1
packages/babylon/test/fixtures/flow/internal-slot/interface-method/input.js vendored Normal file
View File

@ -0,0 +1 @@
interface T { [[foo]](): X }

176
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