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Examples
Module Imports

Module Imports

This example demonstrates the new module-scoped import system introduced in v0.6.0.

Module Imports Screenshot

Features

  • Module-scoped imports: Use let module = import("path") to import modules with namespace isolation
  • Module caching: Same import path returns the same module instance
  • Module functions: Call functions from imported modules using dot notation
  • Module exports: All top-level variables and functions in a module are automatically exported
  • UI integration: Use module functions in callbacks and event handlers

Code 

require(["v0.6", "@gui"])

// Test 1: Basic module import
print("=== Test 1: String Utils Module ===")
let strUtils = import("string_utils.risor")

let text = "Hello World"
print("Original:", text)
print("Upper:", strUtils.upper(text))
print("Lower:", strUtils.lower(text))
print("Reverse:", strUtils.reverse(text))

// Test 2: Module caching
print("\n=== Test 2: Module Caching ===")
let strUtils2 = import("string_utils.risor")
print("Same module instance?", strUtils == strUtils2)

// Test 2b: Module functions referencing module-level variables and functions
print("\n=== Test 2b: Module-Level References ===")
let math = import("math_utils.risor")
print("PI:", math.PI)
print("square(4):", math.square(4))
print("circleArea(2):", math.circleArea(2)) // PI * 2*2 = 12.56636
print("cube(3):", math.cube(3))              // 27

// Test 3: Using module in UI
print("\n=== Test 3: Module in UI ===")

let input = widget.NewEntry()
input.SetPlaceHolder("Enter text here...")
input.SetText("Fynerisor Modules")

let outputLabel = widget.NewLabel("")

let btnUpper = widget.NewButton("To Upper", () => {
    outputLabel.SetText(strUtils.upper(input.Text))
})

let btnLower = widget.NewButton("To Lower", () => {
    outputLabel.SetText(strUtils.lower(input.Text))
})

let btnReverse = widget.NewButton("Reverse", () => {
    outputLabel.SetText(strUtils.reverse(input.Text))
})

let buttons = container.NewHBox([btnUpper, btnLower, btnReverse])

let content = container.NewVBox([
    widget.NewLabel("Module Import Demo"),
    widget.NewSeparator(),
    input,
    buttons,
    widget.NewSeparator(),
    widget.NewLabel("Output:"),
    outputLabel
])

window.SetContent(content)
window.Resize(500, 300)

Running 

cd examples/14-module-imports
go run main.go

Or with the fynerisor CLI:

fynerisor script.risor

Full Source

View full example on GitHub ↗

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