JS: Overhaul import resolution

javascript/ql/lib/semmle/javascript/Modules.qll

@@ -145,12 +145,12 @@ abstract class Import extends AstNode {
   /**
    * Gets the module the path of this import resolves to.
    */
-  Module resolveImportedPath() { result.getFile() = this.getTargetFile() }
+  Module resolveImportedPath() { result.getFile() = this.getImportedFile() }
 
   /**
    * Gets the module the path of this import resolves to.
    */
-  File getTargetFile() { result = ImportPathResolver::resolveExpr(this.getImportedPathExpr()) }
+  File getImportedFile() { result = ImportPathResolver::resolveExpr(this.getImportedPathExpr()) }
 
   /**
    * DEPRECATED. Use `getImportedModule()` instead.

javascript/ql/lib/semmle/javascript/NodeJS.qll

@@ -327,78 +327,6 @@ class Require extends CallExpr, Import {
 
   override Module getEnclosingModule() { this = result.getAnImport() }
 
-  /**
-   * Gets the file that is imported by this `require`.
-   *
-   * The result can be a JavaScript file, a JSON file or a `.node` file.
-   * Externs files are not treated differently from other files by this predicate.
-   */
-  deprecated File getImportedFile() { result = this.load(min(int prio | exists(this.load(prio)))) }
-
-  /**
-   * Gets the file that this `require` refers to (which may not be a JavaScript file),
-   * using the root folder of priority `priority`.
-   *
-   * This predicate implements the specification of
-   * [`require.resolve`](https://nodejs.org/api/modules.html#modules_all_together),
-   * modified to allow additional JavaScript file extensions, such as `ts` and `jsx`.
-   *
-   * Module resolution order is modeled using the `priority` parameter as follows.
-   *
-   * Each candidate folder in which the path may be resolved is assigned
-   * a priority (this is actually done by `Module.searchRoot`, but we explain it
-   * here for completeness):
-   *
-   *   - if the path starts with `'./'`, `'../'`, or `/`, it has a single candidate
-   *     folder (the enclosing folder of the module for the former two, the file
-   *     system root for the latter) of priority 0
-   *   - otherwise, candidate folders are folders of the form `<prefix>/node_modules`
-   *     such that `<prefix>` is a (not necessarily proper) ancestor of the enclosing
-   *     folder of the module which is not itself named `node_modules`; the priority
-   *     of a candidate folder is the number of steps from the enclosing folder of
-   *     the module to `<prefix>`.
-   *
-   * To resolve an import of a path `p`, we consider each candidate folder `c` with
-   * priority `r` and resolve the import to the following files if they exist
-   * (in order of priority):
-   *
-   * <ul>
-   * <li> the file `c/p`;
-   * <li> the file `c/p.{tsx,ts,jsx,es6,es,mjs,cjs}`;
-   * <li> the file `c/p.js`;
-   * <li> the file `c/p.json`;
-   * <li> the file `c/p.node`;
-   * <li> if `c/p` is a folder:
-   *      <ul>
-   *      <li> if `c/p/package.json` exists and specifies a `main` module `m`:
-   *        <ul>
-   *        <li> the file `c/p/m`;
-   *        <li> the file `c/p/m.{tsx,ts,jsx,es6,es,mjs,cjs}`;
-   *        <li> the file `c/p/m.js`;
-   *        <li> the file `c/p/m.json`;
-   *        <li> the file `c/p/m.node`;
-   *        </ul>
-   *      <li> the file `c/p/index.{tsx,ts,jsx,es6,es,mjs,cjs}`;
-   *      <li> the file `c/p/index.js`;
-   *      <li> the file `c/p/index.json`;
-   *      <li> the file `c/p/index.node`.
-   *      </ul>
-   * </ul>
-   *
-   * The first four steps are factored out into predicate `loadAsFile`,
-   * the remainder into `loadAsDirectory`; both make use of an auxiliary
-   * predicate `tryExtensions` that handles the repeated distinction between
-   * `.js`, `.json` and `.node`.
-   */
-  deprecated private File load(int priority) {
-    exists(int r | this.getEnclosingModule().searchRoot(this.getImportedPathExpr(), _, r) |
-      result = loadAsFile(this, r, priority - prioritiesPerCandidate() * r) or
-      result =
-        loadAsDirectory(this, r,
-          priority - (prioritiesPerCandidate() * r + numberOfExtensions() + 1))
-    )
-  }
-
   override DataFlow::Node getImportedModuleNode() { result = DataFlow::valueNode(this) }
 }
 

javascript/ql/lib/semmle/javascript/frameworks/Vue.qll

@@ -442,7 +442,7 @@ module Vue {
 
     override DataFlow::SourceNode getASource() {
       exists(Import imprt |
-        imprt.getTargetFile() instanceof VueFile and
+        imprt.getImportedFile() instanceof VueFile and
         result = imprt.getImportedModuleNode()
       )
     }
@@ -494,7 +494,7 @@ module Vue {
       // There is no explicit `new Vue()` call in .vue files, so instead get all the imports
       // of the .vue file.
       exists(Import imprt |
-        imprt.getTargetFile() = file and
+        imprt.getImportedFile() = file and
         result.asSource() = imprt.getImportedModuleNode()
       )
     }