WUIX creates native interfaces — Boundary detective

PART I

Warm-up

Reconnect with a useful idea before starting wuix creates native interfaces. In one or two sentences, describe the input, output or host boundary from the previous exercise that this lesson builds on. If you are arriving directly, skim the worked example first; there is no locked prerequisite.

A rough note is enough. You can revise it after the example.

PART II

Instruction & guided example

Handle an unavailable native target

WUIX describes native interface composition. A configuration is not a browser DOM tree, and constructing a description is distinct from asking a supplied host to mount it. Resolve target identity, owner lifetime and allowed resources before predicting visible effects.

The host offers main but no details target. Contract: an unavailable-target mount is rejected without changing any existing target. Main currently displays Inventory.

Worked reasoning: A request for details fails; main remains Inventory and no details view exists. The script may report the unavailable target through an already available status surface, but cannot claim the new screen was shown.

Failed alternative: Silently retrying at main violates the intended location and may destroy the existing Inventory view.

Worked reasoning and supplied artifact

Available targets: [main]
Before: main=Inventory
Request: details -> Crate 7
Outcome: rejected unavailable target
After: main=Inventory; details=absent

Illustrative example from the proposed WillowScript design. The language and WUIX/WMATH/WDB/WAUDIO/WTMP services are not implemented in the supplied source. This site has no interpreter, VM or native host and does not execute or certify the snippet.

Try the guided change

Reconstruct the supplied worked case first: list its inputs, intermediate decisions and final artifact. Compare each row with the explanation and identify exactly where the rejected alternative fails. Then use the changed inputs in Part IV for independent work.

• Write the supplied inputs and initial state before following the example.
• Reconstruct each intermediate calculation or host decision, then compare with the worked artifact.
• Explain why the contrasting alternative fails before attempting the changed inputs in Part IV.

PART III

Take a breather

Step back after the guided example. Look away from the screen, stretch, or reread your prediction. This is an optional learning pause, not a timer or an assessment gate.

When you return, try to name the lesson’s key idea without copying its wording. If that feels difficult, return to Part II and trace one line rather than restarting the entire lesson.

PART IV

Independent practice

Project context: Operations dashboard. Build a small, understandable change around wuix creates native interfaces.

Analyze a host with main and alerts but no inspector. Specify a rejection message through alerts without replacing main.

What to produce

An availability check table, rejected request trace and non-destructive reporting plan.

• State the intended behavior in a sentence before editing.
• Use only source-backed syntax and the host services whose contract you have been given.
• Record a normal case and a boundary or unavailable-resource case.
• Label hand predictions separately from anything actually measured in a supplied toolchain.

Syntax colors are a reading aid, not a compiler. The line you are editing stays uncolored until you move to a different line; capitalization is never changed. Drafts stay on this browser and code is not executed.

import wuix.widget.button;
import wuix.layout;
domain Login {
    const screen = {
        layout: { type: "column", padding: [24, 32], gap: 16 },
        components: [{ type: "text", value: "Welcome back" }]
    };
    fnc show() -> void {
        wuix.mount("main", screen);
    }
}

PART V

Self-check

Use this check to notice what to revisit. It does not award a private course grade, block another page or claim to verify compiled code. Every answer has a learning explanation.

You may keep exploring even if you are unsure. Use the hint, compare the trace, and revise your explanation.

PART VI

Recap & small task

Bring the idea back to the mod feature you are building. A useful recap connects the mechanism to a decision you can make in your own code.

• Handle an unavailable native target
• Analyze a host with main and alerts but no inspector. Specify a rejection message through alerts without replacing main.
• Separate source-backed behavior, host requirements and untested predictions.

One small recap task

Separate request rejection from the status message explaining it.

This marks your personal practice record only. It is not a certification or an official workspace assessment.