TypeScript Version: 3.4.0-dev.201xxxxx
Search Terms:
Code
Run this:
$ npm install @types/node
Have a tsconfig like this:
{
"compilerOptions": {
"noEmit": true,
"strict": true,
"target": "esnext",
"lib": ["es5", "es2015", "es2016", "es2017", "esnext", "dom"],
"allowJs": true,
"checkJs": true,
"outDir": "out",
"jsx": "preserve",
"esModuleInterop": true,
"module": "commonjs",
},
"files": [
"welove.ts",
"mod1.js"
]
}In mod1.js:
const EventEmitter = require('events')
class Worker extends EventEmitter {
}
module.exports = {Worker};In welove.ts:
import { Worker } from './mod1'
function f(w: Worker) {
}
var wp = new Worker()
f(wp)Expected behavior:
type reference and value reference to Worker refer to the class defined in mod1.js.
Actual behavior:
type reference Worker refers to the one in lib.dom.d.ts.
Two variants:
- If you convert mod1.js to typescript with the equivalent
export { Worker }, the error goes away.
- If you use the syntax
module.exports.Worker = class Worker extends EventEmitter, the error goes away, but goto-def on the value Worker throws an assertion:
Error: Debug Failure. Expected declaration to have at least one class-like declaration
at getConstructSignatureDefinition (/home/nathansa/ts/built/local/tsserver.js:107575:89)
at getDefinitionFromSymbol (/home/nathansa/ts/built/local/tsserver.js:107570:20)
at Object.getDefinitionAtPosition (/home/nathansa/ts/built/local/tsserver.js:107439:20)
at Object.getDefinitionAtPosition (/home/nathansa/ts/built/local/tsserver.js:125773:38)
TypeScript Version: 3.4.0-dev.201xxxxx
Search Terms:
Code
Run this:
Have a tsconfig like this:
{ "compilerOptions": { "noEmit": true, "strict": true, "target": "esnext", "lib": ["es5", "es2015", "es2016", "es2017", "esnext", "dom"], "allowJs": true, "checkJs": true, "outDir": "out", "jsx": "preserve", "esModuleInterop": true, "module": "commonjs", }, "files": [ "welove.ts", "mod1.js" ] }In mod1.js:
In welove.ts:
Expected behavior:
type reference and value reference to
Workerrefer to the class defined inmod1.js.Actual behavior:
type reference
Workerrefers to the one in lib.dom.d.ts.Two variants:
export { Worker }, the error goes away.module.exports.Worker = class Worker extends EventEmitter, the error goes away, but goto-def on the value Worker throws an assertion: