protobuf.js version: 6.8.0
Problem:
Message class instances cannot be assigned to interface typed variable (or function parameter);
Generated TypeScript definitions.
interface IToken {
message?: google.protobuf.IAny;
}
class Token {
constructor(properties?: core.IToken);
public message?: (google.protobuf.IAny|null);
public static encode(message: core.IToken, writer?: $protobuf.Writer): $protobuf.Writer;
public static encodeDelimited(message: core.IToken, writer?: $protobuf.Writer): $protobuf.Writer;
public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): core.Token;
public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): core.Token;
public static verify(message: { [k: string]: any }): (string|null);
}Code resulting in TypeScript Error:
const myEncodedToken = Token.encode(myToken);
TypeScript Error:
Error:(42, 37) TS2345:Argument of type 'Token' is not assignable to parameter of type 'IToken'.
Types of property 'message' are incompatible.
Type 'IAny | null | undefined' is not assignable to type 'IAny | undefined'.
Type 'null' is not assignable to type 'IAny | undefined'.
A similar problem was fixed in response to this issue: #826. The types now correctly reflect that an instantiated message class can have undefined fields. But assignment to the interface (by calling Message.encode for example) is still impossible.
Example generated TypeScript interface which would fix the problem:
interface IToken {
message?: google.protobuf.IAny | null;
}
protobuf.js version: 6.8.0
Problem:
Message class instances cannot be assigned to interface typed variable (or function parameter);
Generated TypeScript definitions.
Code resulting in TypeScript Error:
TypeScript Error:
A similar problem was fixed in response to this issue: #826. The types now correctly reflect that an instantiated message class can have undefined fields. But assignment to the interface (by calling
Message.encodefor example) is still impossible.Example generated TypeScript interface which would fix the problem: