feat: a new unassertCode function that returns the modified code and sourcemap

Author: RebeccaStevens

package-lock.json

@@ -15,7 +15,8 @@
     }
   ],
   "dependencies": {
-    "estraverse": "^5.0.0"
+    "estraverse": "^5.0.0",
+    "magic-string": "^0.30.0"
   },
   "devDependencies": {
     "@twada/benchmark-commits": "^0.1.0",

package.json

@@ -0,0 +1,46 @@
+import type MagicString, { SourceMap, SourceMapOptions } from "magic-string";
+import type { Node } from "acorn";
+import type { Visitor } from "estraverse";
+
+export type UnassertAstOptions = Partial<{
+  modules: string[];
+  variables: string[];
+}>;
+
+export type UnassertCodeOptions = UnassertAstOptions &
+  Partial<{
+    sourceMap: boolean | SourceMapOptions;
+  }>;
+
+export type CreateVisitorOptions = UnassertAstOptions &
+  Partial<{
+    code: MagicString;
+    sourceMap: boolean
+  }>;
+
+export type UnassertCodeResult = {
+  code: string;
+  map: SourceMap | null;
+};
+
+export function unassertAst(ast: Node, options?: UnassertAstOptions): Node;
+
+export function unassertCode(
+  code: string,
+  ast: Node,
+  options?: UnassertCodeOptions
+): UnassertCodeResult;
+export function unassertCode(
+  code: MagicString,
+  ast: Node,
+  options?: UnassertCodeOptions
+): void;
+export function unassertCode(
+  code: string | MagicString,
+  ast: Node,
+  options?: UnassertCodeOptions
+): void | UnassertCodeResult;
+
+export function defaultOptions(): UnassertAstOptions;
+
+export function createVisitor(options?: CreateVisitorOptions): Visitor;