# Ruchy v3.110.0 WASM Deployment Guide

## ✅ Build Status: SUCCESS

**WASM Package Built:** `/home/noah/src/ruchy/ruchy-wasm/pkg/`

### 📦 Package Contents

```
ruchy-wasm/pkg/
├── ruchy_wasm_bg.wasm    (2.9 MB) - Main WASM binary
├── ruchy_wasm.js         (42 KB)  - JavaScript glue code
├── ruchy_wasm.d.ts       (9.2 KB) - TypeScript definitions
├── ruchy_wasm_bg.wasm.d.ts (3.1 KB) - WASM type definitions
├── package.json          (604 B)  - NPM package metadata
└── README.md             (5.8 KB) - Package documentation
```

## 🐛 Bug Fixes in v3.110.0

### PARSER-066: EOF Handling After Comments (8 failures fixed)
- **Before**: Comments at end of file caused "Unexpected end of input - expected expression"
- **After**: Comments at EOF handled gracefully
- **Impact**: Fixes 2.3% of ruchy-book failures

### PARSER-053: Match Arrow Syntax (3 failures fixed)
- **Before**: Only `=>` accepted in match arms
- **After**: Both `=>` and `->` accepted for user convenience
- **Impact**: Fixes 0.9% of test failures

## 📊 Expected Impact

- **v3.108.0**: ~88% pass rate
- **v3.110.0**: ~91% pass rate (+2.8% improvement)
- **Remaining**: Only 4% from 95% deployment goal!

## 🚀 Deployment Steps

### Option 1: Copy Files to Production (Recommended)

```bash
# Navigate to production directory
cd ../interactive.paiml.com

# Copy WASM files
cp /home/noah/src/ruchy/ruchy-wasm/pkg/ruchy_wasm_bg.wasm static/wasm/
cp /home/noah/src/ruchy/ruchy-wasm/pkg/ruchy_wasm.js static/wasm/
cp /home/noah/src/ruchy/ruchy-wasm/pkg/ruchy_wasm.d.ts static/wasm/

# Test locally
make dev  # or python3 -m http.server 8080

# Deploy to production
make deploy
```

### Option 2: Build Fresh in Production Directory

```bash
cd ../interactive.paiml.com/ruchy-wasm
wasm-pack build --target web --release
cp pkg/* ../static/wasm/
cd .. && make deploy
```

## 🔧 Build Configuration (Fixed Issues)

### Problem: Default Features Include Non-WASM Dependencies
- `batteries-included` → `notebook` → `tokio` → `mio` → ❌ (requires libc)

### Solution: Minimal Feature Set for WASM
```toml
# ruchy-wasm/Cargo.toml
[dependencies]
ruchy = { path = "..", version = "3.110.0", default-features = false, features = ["wasm-compile"] }

[package.metadata.wasm-pack.profile.release]
wasm-opt = false  # Disable wasm-opt (bulk memory errors)
```

## ✅ Verification

Test the deployment with these ruchy-book examples:

1. **EOF Comment Test**:
```ruchy
let x = 5;
// Comment at end
```

2. **Match Arrow Test**:
```ruchy
let x = 2;
match x {
    1 -> "one",
    2 -> "two",
    _ -> "other"
}
```

## 📈 Progress Tracking

| Version | Pass Rate | Improvement | Notes |
|---------|-----------|-------------|-------|
| v3.107.0 | ~83% | Baseline | Initial deployment |
| v3.108.0 | ~88% | +5% | Parser improvements |
| v3.110.0 | ~91% | +3% | **EOF + Match fixes** |
| **Target** | **95%** | **+4%** | **Deployment goal** |

## 🎯 Next Steps After Deployment

1. **Verify Pass Rate**: Run full test suite on production
2. **Monitor Failures**: Check remaining 9% failure patterns
3. **Next Bug Fix**: Pattern matching variable scope (19 "undefined variable" errors)
4. **Goal**: Reach 95% compatibility for full launch

## 📝 Commit Message for Production

```
Deploy Ruchy v3.110.0 - Parser Bug Fixes

- Fixed EOF handling after comments (PARSER-066)
- Added -> syntax support for match arms (PARSER-053)
- Expected: +2.8% pass rate improvement (88% → 91%)
- WASM size: 2.9 MB (minimal feature set)

Remaining to 95% goal: ~4%
```

## 🔗 References

- **GitHub Release**: https://github.com/paiml/ruchy/releases/tag/v3.110.0
- **Crates.io**: https://crates.io/crates/ruchy/3.110.0
- **WASM Crate**: https://crates.io/crates/ruchy-wasm/3.110.0
- **CHANGELOG**: See CHANGELOG.md for detailed changes
