feature request: better detection of component path

[trusktr]

Here for example is a Three.js component that imports everything from an index, importing the whole Three.js lib:

https://github.com/mrdoob/three.js/blob/f9331aa74f87b12e91f34886e0ed54b8d79b31bf/examples/jsm/controls/OrbitControls.js#L1-L9

When I try to set the loader config,

                    options: {
                        modules: {
                            three: {
                                // nothing, but need this empty object literal
                            },
                        },
                    },

the build has an error:

Module not found: Error: Package path ./LinearMipmapLinearFilter is not exported from package /home/trusktr/src/lume+lume/node_modules/three (see exports field in /home/trusktr/src/lume+lume/node_modules/three/package.json)

Besides that Webpack is trying to obey exports field, it is also trying to import the wrong path. three/LinearMipmapLinearFilter is not the file where that thing comes from; it comes from three/src/constants.

I wonder if there's a way to make it correctly detect the path of items.

[trusktr]

I see! this works a little better, but not quite:

                    options: {
                        modules: {
                            three: {
                                components: 'src',
                            },
                        },
                    },

[trusktr]

I took a look! I see it is using TS for the AST. Maybe instead we can tell TS to resolve the original file location of given item, to get the path that way.

[trusktr]

Hmmm, check out this getSourceFile method. Maybe we can use that.

https://stackoverflow.com/questions/58653091/typescript-compiler-api-find-which-file-a-type-came-from