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JSDoc:Object<string, T> creates index signature

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And `Object<number, T>` creates a numeric index signature. Other uses
still create `any` as before.
This commit is contained in:
Nathan Shively-Sanders
2017-07-17 16:14:42 -07:00
parent de9a67f2f3
commit 10a91c5426
4 changed files with 47 additions and 2 deletions
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13
src/compiler/checker.ts
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@@ -6872,6 +6872,17 @@ namespace ts {
function getPrimitiveTypeFromJSDocTypeReference(node: TypeReferenceNode): Type {
if (isIdentifier(node.typeName)) {
if (node.typeName.text === "Object") {
if (node.typeArguments && node.typeArguments.length === 2) {
const from = getTypeFromTypeNode(node.typeArguments[0]);
const to = getTypeFromTypeNode(node.typeArguments[1]);
let index = createIndexInfo(to, /*isReadonly*/ false);
if (from === stringType || from === numberType) {
return createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, from === stringType ? index : undefined, from === numberType ? index : undefined)
}
}
return anyType;
}
switch (node.typeName.text) {
case "String":
return stringType;
@@ -6885,8 +6896,6 @@ namespace ts {
return undefinedType;
case "Null":
return nullType;
case "Object":
return anyType;
case "Function":
case "function":
return globalFunctionType;