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Add support for "declare type" Flow syntax

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See facebook/flow#1105
This commit is contained in:
Sam Goldman 2016-01-04 11:37:59 -08:00
parent b1da92e8cb
commit 0980819346
3 changed files with 252 additions and 0 deletions
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8
src/plugins/flow.js
View File

@ -58,6 +58,8 @@ pp.flowParseDeclare = function (node) {
return this.flowParseDeclareVariable(node);
} else if (this.isContextual("module")) {
return this.flowParseDeclareModule(node);
} else if (this.isContextual("type")) {
return this.flowParseDeclareTypeAlias(node);
} else {
this.unexpected();
}
@ -96,6 +98,12 @@ pp.flowParseDeclareModule = function (node) {
return this.finishNode(node, "DeclareModule");
};
pp.flowParseDeclareTypeAlias = function (node) {
this.next();
this.flowParseTypeAlias(node);
return this.finishNode(node, "DeclareTypeAlias");
};
// Interfaces

2
test/fixtures/flow/declare-statements/14/actual.js vendored Normal file
View File

@ -0,0 +1,2 @@
declare type A = string;
declare type T<U> = { [k:string]: U };

242
test/fixtures/flow/declare-statements/14/expected.json vendored Normal file
View File

@ -0,0 +1,242 @@
{
"type": "File",
"start": 0,
"end": 63,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 2,
"column": 38
}
},
"program": {
"type": "Program",
"start": 0,
"end": 63,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 2,
"column": 38
}
},
"sourceType": "module",
"body": [
{
"type": "DeclareTypeAlias",
"start": 0,
"end": 24,
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 24
}
},
"id": {
"type": "Identifier",
"start": 13,
"end": 14,
"loc": {
"start": {
"line": 1,
"column": 13
},
"end": {
"line": 1,
"column": 14
}
},
"name": "A"
},
"typeParameters": null,
"right": {
"type": "StringTypeAnnotation",
"start": 17,
"end": 23,
"loc": {
"start": {
"line": 1,
"column": 17
},
"end": {
"line": 1,
"column": 23
}
}
}
},
{
"type": "DeclareTypeAlias",
"start": 25,
"end": 63,
"loc": {
"start": {
"line": 2,
"column": 0
},
"end": {
"line": 2,
"column": 38
}
},
"id": {
"type": "Identifier",
"start": 38,
"end": 39,
"loc": {
"start": {
"line": 2,
"column": 13
},
"end": {
"line": 2,
"column": 14
}
},
"name": "T"
},
"typeParameters": {
"type": "TypeParameterDeclaration",
"start": 39,
"end": 42,
"loc": {
"start": {
"line": 2,
"column": 14
},
"end": {
"line": 2,
"column": 17
}
},
"params": [
{
"type": "Identifier",
"start": 40,
"end": 41,
"loc": {
"start": {
"line": 2,
"column": 15
},
"end": {
"line": 2,
"column": 16
}
},
"name": "U"
}
]
},
"right": {
"type": "ObjectTypeAnnotation",
"start": 45,
"end": 62,
"loc": {
"start": {
"line": 2,
"column": 20
},
"end": {
"line": 2,
"column": 37
}
},
"callProperties": [],
"properties": [],
"indexers": [
{
"type": "ObjectTypeIndexer",
"start": 47,
"end": 60,
"loc": {
"start": {
"line": 2,
"column": 22
},
"end": {
"line": 2,
"column": 35
}
},
"id": {
"type": "Identifier",
"start": 48,
"end": 49,
"loc": {
"start": {
"line": 2,
"column": 23
},
"end": {
"line": 2,
"column": 24
}
},
"name": "k"
},
"key": {
"type": "StringTypeAnnotation",
"start": 50,
"end": 56,
"loc": {
"start": {
"line": 2,
"column": 25
},
"end": {
"line": 2,
"column": 31
}
}
},
"value": {
"type": "GenericTypeAnnotation",
"start": 59,
"end": 60,
"loc": {
"start": {
"line": 2,
"column": 34
},
"end": {
"line": 2,
"column": 35
}
},
"typeParameters": null,
"id": {
"type": "Identifier",
"start": 59,
"end": 60,
"loc": {
"start": {
"line": 2,
"column": 34
},
"end": {
"line": 2,
"column": 35
}
},
"name": "U"
}
}
}
]
}
}
],
"directives": []
}
}