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getApparentType for each constituent of props type of the targetAttributesType

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This commit is contained in:
Kanchalai Tanglertsampan
2017-05-11 16:30:43 -07:00
parent 60def44886
commit 181ff86150
1 changed files with 14 additions and 1 deletions
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15
src/compiler/checker.ts
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@@ -13548,6 +13548,17 @@ namespace ts {
return _jsxElementChildrenPropertyName;
}
function createIntersectionOfApparentTypeOfJsxPropsType(propsType: Type): Type {
if (propsType && propsType.flags & TypeFlags.Intersection) {
const propsApprentType: Type[] = [];
for (const t of (<UnionOrIntersectionType>propsType).types) {
propsApprentType.push(getApparentType(t));
}
return getIntersectionType(propsApprentType);
}
return propsType;
}
/**
* Get JSX attributes type by trying to resolve openingLikeElement as a stateless function component.
* Return only attributes type of successfully resolved call signature.
@@ -13568,6 +13579,7 @@ namespace ts {
if (callSignature !== unknownSignature) {
const callReturnType = callSignature && getReturnTypeOfSignature(callSignature);
let paramType = callReturnType && (callSignature.parameters.length === 0 ? emptyObjectType : getTypeOfSymbol(callSignature.parameters[0]));
paramType = createIntersectionOfApparentTypeOfJsxPropsType(paramType);
if (callReturnType && isTypeAssignableTo(callReturnType, jsxStatelessElementType)) {
// Intersect in JSX.IntrinsicAttributes if it exists
const intrinsicAttributes = getJsxType(JsxNames.IntrinsicAttributes);
@@ -13605,7 +13617,8 @@ namespace ts {
let allMatchingAttributesType: Type;
for (const candidate of candidatesOutArray) {
const callReturnType = getReturnTypeOfSignature(candidate);
const paramType = callReturnType && (candidate.parameters.length === 0 ? emptyObjectType : getTypeOfSymbol(candidate.parameters[0]));
let paramType = callReturnType && (candidate.parameters.length === 0 ? emptyObjectType : getTypeOfSymbol(candidate.parameters[0]));
paramType = createIntersectionOfApparentTypeOfJsxPropsType(paramType);
if (callReturnType && isTypeAssignableTo(callReturnType, jsxStatelessElementType)) {
let shouldBeCandidate = true;
for (const attribute of openingLikeElement.attributes.properties) {