provide access to inner graph

[nestarz]

Accessing the graph constructed in the loader here

deno-js-loader/src/rs_lib/lib.rs

Line 318 in 68a5ebe

graph: ModuleGraph,

is an expensive operation and it would be better to let users not recreate it using @deno/graph library. This would let bundler plugins or libraries to get the module graph to perform prebuild operations.

For now we need to do:

  const workspace = new Workspace({
    cachedOnly: true,
    preserveJsx: true,
    noTranspile: true,
    configPath: configPath,
  });
  console.time("create_loader");
  const loader = await workspace.createLoader({
    entrypoints: [config.entrypoint.href, ...bootstrapModules],
  });
  console.timeEnd("create_loader");

  const cache = createCache();
  console.time("create_graph");
  const graph = await createGraph(
    [config.entrypoint.href, ...bootstrapModules],
    {
      kind: "codeOnly",
      load: cache.load,
      cacheInfo: cache.cacheInfo,
      resolve: (s, r) => {
        try {
          try {
            return loader.resolve(s, r, ResolutionMode.Import);
          } catch {
            return loader.resolve(s, r, ResolutionMode.Require);
          }
        } catch (error) {
          console.log(`Unable to resolve: ${s} from ${r}`);
          throw error;
        }
      },
    },
  );
  console.timeEnd("create_graph");

which is redundant work.