3 Commits
Author SHA1 Message Date
Aaron SinclairandClaude ea7dadc5ae Implement self-hosted debug console and @external decorator
This commit completes the self-hosting of Ritz's debug console and
introduces the @external decorator for elegant JavaScript bridge functions.

## Major Features

### 1. Self-Hosted Debug Console (DebugConsole.py)
- Entire debug console UI written in Ritz itself
- Signal-based state management for toggle functionality
- Displays runtime stats (memory, signals, DOM nodes, logs)
- Live reactive updates when signals change in main app
- Keyboard shortcut support (Ctrl+`)

### 2. @external Decorator for JavaScript Bridges
- Pythonic decorator syntax: @external or @bridge
- Parser automatically recognizes and tracks external functions
- Codegen emits proper LLVM declarations
- No more hacky string checks (startswith("js_"))
- Clean, declarative bridge function definitions

Example:
```python
@external
def js_toggle_debug_console():
    pass

def toggle():
    js_toggle_debug_console()  # Clean call to JS bridge
```

### 3. Enhanced RitzLoader Debug Mode
- `new RitzLoader({ debug: true })` auto-loads DebugConsole.wasm
- Keyboard shortcut registration (Ctrl+` toggle)
- Runtime stats injection (memory, signals, DOM nodes)
- Automatic status element hiding when debug enabled
- Debug console isolated in separate WASM runtime

## Bug Fixes

- Fixed reactive text node scoping (prevent global name collisions)
- Fixed CSS specificity for debug console status (use #ritz-debug)
- Fixed signal cross-contamination between runtimes (scope to rootElement)
- Fixed parser to handle expression statements in function bodies
- Fixed conditional branch rendering (append children to wrapper divs)

## Infrastructure Improvements

- Added H4 and Pre elements to syntax.py
- Parser handles @external decorator on top-level functions
- Codegen pre-collects external functions before emitting declarations
- Runtime scopes querySelector to prevent cross-runtime interference
- Debug stats update reactively on every signal change

## Files Added/Modified

New files:
- examples/runtime/DebugConsole.py - Self-hosted debug UI
- examples/runtime/DebugConsole.wasm - Compiled debug console (1.8KB)
- PHASE4_CLEANUP.md - Next phase planning document

Modified:
- ritz/parser.py - @external decorator support
- ritz/llvm_codegen_signals.py - External function handling
- ritz/syntax.py - Added external/bridge decorators, H4, Pre
- examples/runtime/ritz-runtime.js - Debug mode, stats updates
- examples/runtime/styles.css - Merged debug styles
- examples/template.html - Debug mode enabled by default
- examples/highfive/HighFive.html - Simplified using template

## Known Issues (Addressed in PHASE4_CLEANUP.md)

1. Debug console shifts page RIGHT (should shift LEFT)
2. Toggle implementation un-Ritzy (calls JS to manipulate DOM)
   - Should use reactive class binding + @event decorator
   - Needs event object bridge for keyboard events
3. Missing test infrastructure

## Next Steps (Phase 4)

See PHASE4_CLEANUP.md for detailed plan:
- Implement reactive class binding (signal-driven classes)
- Add @event decorator for declarative event registration
- Build event object bridge (access event.key, event.ctrlKey)
- Create Python test mode (execute without browser)
- Add comprehensive test suite
- Update all examples to use new patterns

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-15 18:28:24 -08:00
Aaron SinclairandClaude ddd2c03a9d Implement RitzMain() convention and Main.wasm standard
**Convention: RitzMain() entry point**
Every Ritz file now requires a `@component def RitzMain()` as the entry point.
This provides a consistent, predictable entry point for all applications.

**Universal Main.wasm output**
Build system now always outputs Main.wasm instead of ComponentName.wasm.
This means every example uses the exact same HTML boilerplate!

**Changes:**

**Codegen (llvm_codegen_signals.py):**
- Check for RitzMain component at generation time
- Error if RitzMain not found: "No RitzMain component found!"
- Always call `render_RitzMain()` from main() entry point
- Fix: Scope reactive text nodes to components (`@reactive_text_ComponentName_N_node`)
  - Prevents global name collisions when multiple components have reactive text

**Build (build.py):**
- Output Main.wasm in same directory as source file
- Output Main.ll (LLVM IR) for inspection
- Convention over configuration!

**Loader (ritz-runtime.js):**
- Auto-detect component name from WASM filename
- `new RitzLoader().load('Main.wasm')` - no second parameter needed!
- Component name used only for status messages

**Template (examples/template.html):**
- Minimal boilerplate - literally 25 lines
- Just copy and change nothing!
- Loads Main.wasm - works for every example

**Styles (examples/runtime/styles.css):**
- Shared styles for all examples
- Clean, modern defaults
- App container, buttons, inputs, typography

**Example (HighFive):**
```python
@component
def HighFive():
    # ... component logic

@component
def RitzMain():
    """Entry point - required!"""
    yield HighFive()
```

**Result:**
✅ Every example: copy template.html, change nothing
✅ Every example: builds to Main.wasm
✅ Consistent entry point: RitzMain()
✅ No more component name boilerplate

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-15 15:46:36 -08:00
Aaron SinclairandClaude 999327172e Reorganize HighFive example into highfive/ subdirectory
**Structure Before:**
examples/
  ├── HighFive.py, HighFive.html, HighFive.wasm, HighFive.ll (loose files)
  ├── highfive.html (old duplicate)
  ├── tabs/Tabs.*
  └── textinput/TextInput.*

**Structure After:**
examples/
  ├── highfive/HighFive.*
  ├── tabs/Tabs.*
  └── textinput/TextInput.*

**Changes:**
- Moved all HighFive.* files to examples/highfive/ subdirectory
- Updated paths in HighFive.html: runtime/ → ../runtime/
- Removed old duplicate highfive.html file
- Now consistent with tabs/ and textinput/ structure

**Testing:**
Access via: http://localhost:8111/highfive/HighFive.html

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-15 15:16:06 -08:00