use works more like fn, for now

src/prelude/index.ts

@@ -78,7 +78,7 @@ export const globalFunctions = {
   },
 
   // modules
-  use: async function (this: VM, path: string) {
+  use: async function (this: VM, path: string): Promise<Record<string, Value>> {
     const scope = this.scope
     const pc = this.pc
 
@@ -92,16 +92,16 @@ export const globalFunctions = {
 
     await this.continue()
 
-    const module: Map<string, Value> = new Map
+    const module: Record<string, Value> = {}
     for (const [name, value] of this.scope.locals.entries())
-      module.set(name, value)
+      module[name] = value
 
     this.scope = scope
     this.pc = pc
     this.stopped = false
 
-    this.scope.set(parse(fullPath).name, { type: 'dict', value: module })
+    return module
-  }
+  },
 }
 
 export function formatValue(value: Value, inner = false): string {

src/prelude/tests/use.test.ts

@@ -4,25 +4,39 @@ import { globalFunctions } from '#prelude'
 describe('use', () => {
   test(`imports all a file's functions`, async () => {
     expect(`
-      use ./src/prelude/tests/math
+      math = use ./src/prelude/tests/math
-      dbl = math | at double
+      math.double 4
-      dbl 4
     `).toEvaluateTo(8, globalFunctions)
 
     expect(`
-      use ./src/prelude/tests/math
+      math = use ./src/prelude/tests/math
-      math | at pi
+      math.double (math.double 4) 
+    `).toEvaluateTo(16, globalFunctions)
+
+    expect(`
+      math = use ./src/prelude/tests/math
+      dbl = math.double 
+      dbl (dbl 2)
+    `).toEvaluateTo(8, globalFunctions)
+
+    expect(`
+      math = use ./src/prelude/tests/math
+      math.pi
     `).toEvaluateTo(3.14, globalFunctions)
 
     expect(`
-      use ./src/prelude/tests/math
+      math = use ./src/prelude/tests/math
       math | at 🥧
     `).toEvaluateTo(3.14159265359, globalFunctions)
 
     expect(`
-      use ./src/prelude/tests/math
+      math = use ./src/prelude/tests/math
-      call = do x y: x y end
+      math.🥧
-      call (math | at add1) 5
+    `).toEvaluateTo(3.14159265359, globalFunctions)
+
+    expect(`
+      math = use ./src/prelude/tests/math
+      math.add1 5
     `).toEvaluateTo(6, globalFunctions)
   })
 })