Closed
Description
openedon Mar 28, 2020
TypeScript Version: 3.9.0-dev.20200327
Search Terms:
Expected behavior:
No error -- this worked fine in 3.8 (and should)
Actual behavior:
Error:
Argument of type 'CommitFileNode | ResultsFileNode | (ResultsFileNode & StashFileNode)' is not assignable to parameter of type 'CommitFileNode | ResultsFileNode | StashFileNode | StatusFileNode'.
Type 'ResultsFileNode & StashFileNode' is not assignable to type 'CommitFileNode | ResultsFileNode | StashFileNode | StatusFileNode'.
Type 'ResultsFileNode & StashFileNode' is not assignable to type 'StashFileNode'.
Property '_foo1' has conflicting declarations and is inaccessible in type 'ResultsFileNode & StashFileNode'.(2345)
Related Issues:
Code
abstract class ViewNode { }
abstract class ViewRefNode extends ViewNode { }
abstract class ViewRefFileNode extends ViewRefNode { }
class CommitFileNode extends ViewRefFileNode {
private _id: any;
}
class ResultsFileNode extends ViewRefFileNode {
private _id: any;
}
class StashFileNode extends CommitFileNode {
private _id2: any;
}
class StatusFileNode extends ViewNode {
private _id: any;
}
class Foo {
private async foo(node: CommitFileNode | ResultsFileNode | StashFileNode) {
if (
!(node instanceof CommitFileNode) &&
!(node instanceof StashFileNode) &&
!(node instanceof ResultsFileNode)
) {
return;
}
await this.bar(node);
}
private async bar(node: CommitFileNode | ResultsFileNode | StashFileNode | StatusFileNode, options?: {}) {
return Promise.resolve(undefined);
}
}Output
"use strict";
class ViewNode {
}
class ViewRefNode extends ViewNode {
}
class ViewRefFileNode extends ViewRefNode {
}
class CommitFileNode extends ViewRefFileNode {
}
class ResultsFileNode extends ViewRefFileNode {
}
class StashFileNode extends CommitFileNode {
}
class StatusFileNode extends ViewNode {
}
class Foo {
async foo(node) {
if (!(node instanceof CommitFileNode) &&
!(node instanceof StashFileNode) &&
!(node instanceof ResultsFileNode)) {
return;
}
await this.bar(node);
}
async bar(node, options) {
return Promise.resolve(undefined);
}
}Compiler Options
{
"compilerOptions": {
"noImplicitAny": true,
"strictNullChecks": true,
"strictFunctionTypes": true,
"strictPropertyInitialization": true,
"strictBindCallApply": true,
"noImplicitThis": true,
"noImplicitReturns": true,
"alwaysStrict": true,
"esModuleInterop": true,
"declaration": true,
"experimentalDecorators": true,
"emitDecoratorMetadata": true,
"moduleResolution": 2,
"target": "ES2017",
"jsx": "React",
"module": "ESNext"
}
}Playground Link: Provided
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