Typescript: accessing VS Code's "Find All References" programatically

Question

One of the things I like about Typescript in VS Code is the ability to find all references to a function with Shift+F12 (or right-click). Is it possible to get to this mapping programatically, or to export it somehow?

The output would contain information like:

fileA.ClassA.methodA is referenced in fileB.ClassB.methodB

Since this is easy to do 'by hand', I'm hoping that it can also done programatically, but I'm not sure what interfaces are available.

Answer 1

I was in the same quest and I passed by your post, I finally got it using ts-morph, here is as simple as it gets.

import { Project } from "ts-morph";
const project = new Project({
    tsConfigFilePath: "<yourproject>\\tsconfig.json",
});

for(const sourceFile of project.getSourceFiles()){
    for(const classDeclaration  of sourceFile.getClasses()){
        console.log("---------")
        console.log("Class ",classDeclaration.getName())
        console.log("---------")
        const referencedSymbols = classDeclaration.findReferences();

        for (const referencedSymbol of referencedSymbols) {
            for (const reference of referencedSymbol.getReferences()) {
                console.log("---------")
                console.log("REFERENCE")
                console.log("---------")
                console.log("File path: " + reference.getSourceFile().getFilePath());
                console.log("Start: " + reference.getTextSpan().getStart());
                console.log("Length: " + reference.getTextSpan().getLength());
                console.log("Parent kind: " + reference.getNode().getParentOrThrow().getKindName());
                console.log("\n");
            }
        }
    }
}