TypeScript Version: 3.8.3
Search Terms:
string literal
string alias
is not assignable to parameter of type
Expected behavior:
No type check errors
Actual behavior:
No overload matches this call.
The last overload gave the following error.
Argument of type 'tAlgorithm' is not assignable to parameter of type '"oct"'.
Type '"EC"' is not assignable to type '"oct"'.
Related Issues:
Code
interface KeyStore {
generate(kty: 'EC', crv?: string, parameters?: object, isprivate?: boolean): void;
generate(kty: 'OKP', crv?: string, parameters?: object, isprivate?: boolean): void;
generate(kty: 'RSA', bitlength?: number, parameters?: object, isprivate?: boolean): void;
generate(kty: 'oct', bitlength?: number, parameters?: object): void;
}
type tAlgorithm = "RSA" | "EC" | "OKP" | "oct";
function generateKey(alg: tAlgorithm, crvOrSize: string | number) {
return ({} as KeyStore).generate(alg, crvOrSize);
}Output
"use strict";
function generateKey(alg) {
return {}.generate(alg, "P-256");
}Compiler Options
{
"compilerOptions": {
"noImplicitAny": true,
"strictNullChecks": true,
"strictFunctionTypes": true,
"strictPropertyInitialization": true,
"strictBindCallApply": true,
"noImplicitThis": true,
"noImplicitReturns": true,
"useDefineForClassFields": false,
"alwaysStrict": true,
"allowUnreachableCode": false,
"allowUnusedLabels": false,
"downlevelIteration": false,
"noEmitHelpers": false,
"noLib": false,
"noStrictGenericChecks": false,
"noUnusedLocals": false,
"noUnusedParameters": false,
"esModuleInterop": true,
"preserveConstEnums": false,
"removeComments": false,
"skipLibCheck": false,
"checkJs": false,
"allowJs": false,
"declaration": true,
"experimentalDecorators": false,
"emitDecoratorMetadata": false,
"target": "ES2017",
"module": "ESNext"
}
}Playground Link: Provided
TypeScript Version: 3.8.3
Search Terms:
string literal
string alias
is not assignable to parameter of type
Expected behavior:
No type check errors
Actual behavior:
Related Issues:
Code
Output
Compiler Options
{ "compilerOptions": { "noImplicitAny": true, "strictNullChecks": true, "strictFunctionTypes": true, "strictPropertyInitialization": true, "strictBindCallApply": true, "noImplicitThis": true, "noImplicitReturns": true, "useDefineForClassFields": false, "alwaysStrict": true, "allowUnreachableCode": false, "allowUnusedLabels": false, "downlevelIteration": false, "noEmitHelpers": false, "noLib": false, "noStrictGenericChecks": false, "noUnusedLocals": false, "noUnusedParameters": false, "esModuleInterop": true, "preserveConstEnums": false, "removeComments": false, "skipLibCheck": false, "checkJs": false, "allowJs": false, "declaration": true, "experimentalDecorators": false, "emitDecoratorMetadata": false, "target": "ES2017", "module": "ESNext" } }Playground Link: Provided