Cannot find 'lib.d.ts' about blog-typescript-api

[nwolverson]

Have a look here

https://github.com/nwolverson/tstooltip/blob/master/worker/worker.ts#L55

I basically used the same thing and loaded the lib.d.ts initially (if I wrote this now I'd load it via a bundler instead of directly xhr).

Otherwise depending what you're doing you may wish to turn the lib check off or whatever the option is.

(Obviously the problem with an in-memory host is you need to get the lib file into memory to use it...)

[Thomasp24]

Thanks for the quick response!
I didn't have lib.d.ts in memory. I assumed the compiler would do that for me because of the getDefaultLibFileName() / getDefaultLibFileLocation() methods.
So thanks a lot!

I do have 1 more issue though:
It doesn't seem to be able to recognize import statements. When I try to compile the following:

import Calculator from "./calculator";
class HelloWorld {
    private calculator: Calculator;
    constructor() {this.calculator = new Calculator();}

    public sayHelloTo(name: string) {
        console.log("Hello " + name);
    }
}

I still get the following output:
Cannot find module './calculator'.

The file calculator.ts is in the same folder and gets included in the compilerHost. It looks like this:

export default class Calculator {
    constructor() {}
   // more logic down here
}

Do you have any idea how I get the CompilerHost to recognize this situation?

[Thomasp24]

Btw, initial question is answered! Thanks a lot for that!
Closing issue.

[nwolverson]

If you have files in a folder actually on disk you may want to look into using the default compiler host, I think there's some helper that returns one.

[Thomasp24]

The thing is, I already have the file in memory. I don't want to read/write from/to disk in my proces, because I will be changing the files a lot. That would take too long.

[nwolverson]

@Thomasp24 sure, then in that case loading all the files into the CompilerHost would seem to be the right thing, I'm not sure how path resolution works but need to get the right paths, I guess.

You might want to look at the LanguageService API if it's more appropriate to your use case, being designed for editors etc which will make lots of updates to existing set of files.

[Thomasp24]

Just an update, I changed all the file paths to their absolute path.
so: "./calculator.ts" get changed to "Users/thomasp/Desktop/projectfolder/calculator.ts" before being added to the CompilerHost by calling this.compilerHost.addFile().
I geuss import statements do this automatically.
This seemed to have fixed the issue.