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Add support for "declare interface" Flow syntax

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This has been a feature in Flow for a long time (couldn't easily find a
specific commit adding this). Interfaces are basically undocumented, though, so
it's easy to see how this was missed.
This commit is contained in:
Sam Goldman 2016-01-04 11:50:12 -08:00
parent 0980819346
commit bd5c1a5b1b
3 changed files with 293 additions and 0 deletions
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8
src/plugins/flow.js
View File

@ -60,6 +60,8 @@ pp.flowParseDeclare = function (node) {
return this.flowParseDeclareModule(node);
} else if (this.isContextual("type")) {
return this.flowParseDeclareTypeAlias(node);
} else if (this.isContextual("interface")) {
return this.flowParseDeclareInterface(node);
} else {
this.unexpected();
}
@ -104,6 +106,12 @@ pp.flowParseDeclareTypeAlias = function (node) {
return this.finishNode(node, "DeclareTypeAlias");
};
pp.flowParseDeclareInterface = function (node) {
this.next();
this.flowParseInterfaceish(node);
return this.finishNode(node, "DeclareInterface");
}
// Interfaces

2
test/fixtures/flow/declare-statements/15/actual.js vendored Normal file
View File

@ -0,0 +1,2 @@
declare interface I { foo: string }
declare interface I<T> { foo: T }

283
test/fixtures/flow/declare-statements/15/expected.json vendored Normal file
View File

@ -0,0 +1,283 @@
{
"type": "File",
"start": 0,
"end": 69,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 2,
"column": 33
}
},
"program": {
"type": "Program",
"start": 0,
"end": 69,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 2,
"column": 33
}
},
"sourceType": "module",
"body": [
{
"type": "DeclareInterface",
"start": 0,
"end": 35,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 35
}
},
"id": {
"type": "Identifier",
"start": 18,
"end": 19,
"loc": {
"start": {
"line": 1,
"column": 18
},
"end": {
"line": 1,
"column": 19
}
},
"name": "I"
},
"typeParameters": null,
"extends": [],
"mixins": [],
"body": {
"type": "ObjectTypeAnnotation",
"start": 20,
"end": 35,
"loc": {
"start": {
"line": 1,
"column": 20
},
"end": {
"line": 1,
"column": 35
}
},
"callProperties": [],
"properties": [
{
"type": "ObjectTypeProperty",
"start": 22,
"end": 33,
"loc": {
"start": {
"line": 1,
"column": 22
},
"end": {
"line": 1,
"column": 33
}
},
"key": {
"type": "Identifier",
"start": 22,
"end": 25,
"loc": {
"start": {
"line": 1,
"column": 22
},
"end": {
"line": 1,
"column": 25
}
},
"name": "foo"
},
"value": {
"type": "StringTypeAnnotation",
"start": 27,
"end": 33,
"loc": {
"start": {
"line": 1,
"column": 27
},
"end": {
"line": 1,
"column": 33
}
}
},
"optional": false
}
],
"indexers": []
}
},
{
"type": "DeclareInterface",
"start": 36,
"end": 69,
"loc": {
"start": {
"line": 2,
"column": 0
},
"end": {
"line": 2,
"column": 33
}
},
"id": {
"type": "Identifier",
"start": 54,
"end": 55,
"loc": {
"start": {
"line": 2,
"column": 18
},
"end": {
"line": 2,
"column": 19
}
},
"name": "I"
},
"typeParameters": {
"type": "TypeParameterDeclaration",
"start": 55,
"end": 58,
"loc": {
"start": {
"line": 2,
"column": 19
},
"end": {
"line": 2,
"column": 22
}
},
"params": [
{
"type": "Identifier",
"start": 56,
"end": 57,
"loc": {
"start": {
"line": 2,
"column": 20
},
"end": {
"line": 2,
"column": 21
}
},
"name": "T"
}
]
},
"extends": [],
"mixins": [],
"body": {
"type": "ObjectTypeAnnotation",
"start": 59,
"end": 69,
"loc": {
"start": {
"line": 2,
"column": 23
},
"end": {
"line": 2,
"column": 33
}
},
"callProperties": [],
"properties": [
{
"type": "ObjectTypeProperty",
"start": 61,
"end": 67,
"loc": {
"start": {
"line": 2,
"column": 25
},
"end": {
"line": 2,
"column": 31
}
},
"key": {
"type": "Identifier",
"start": 61,
"end": 64,
"loc": {
"start": {
"line": 2,
"column": 25
},
"end": {
"line": 2,
"column": 28
}
},
"name": "foo"
},
"value": {
"type": "GenericTypeAnnotation",
"start": 66,
"end": 67,
"loc": {
"start": {
"line": 2,
"column": 30
},
"end": {
"line": 2,
"column": 31
}
},
"typeParameters": null,
"id": {
"type": "Identifier",
"start": 66,
"end": 67,
"loc": {
"start": {
"line": 2,
"column": 30
},
"end": {
"line": 2,
"column": 31
}
},
"name": "T"
}
},
"optional": false
}
],
"indexers": []
}
}
],
"directives": []
}
}