# Chapter 22 Compiler Development - Audit Report

**Date**: 2025-10-02
**Ruchy Version**: v3.66.1 (book targets v3.38.0)
**Auditor**: Claude (Book Sync Sprint - Session 1)

## Executive Summary

**Overall Result**: 8/8 examples working (100%)

**Status**: ✅ Excellent - All compiler workflow examples functional

## Chapter Overview

Chapter 22 contains bash scripts and workflow examples for working with the Ruchy compiler, not Ruchy language examples. All examples are operational bash commands.

### Quick Results
| Example | Feature | Status |
|---------|---------|--------|
| 1 | Check Ruchy Version | ✅ PASS |
| 2 | Check Local Build | ✅ PASS |
| 3 | Compare Versions | ✅ PASS |
| 4 | Test System Compilation | ✅ PASS |
| 5 | Test Local Build | ✅ PASS |
| 6 | Check Git Commits | ✅ PASS |
| 7 | Test Pipeline Feature | ✅ PASS |
| 8 | Status Report Script | ✅ PASS |

## Sample Test Results

### Example 1: Check Ruchy Version
**Command**: `ruchy --version`
**Output**: `ruchy 3.66.0`
**Result**: ✅ PASS

### Example 4: Test Basic Compilation
**Command**:
```bash
echo 'fun main() { println("System ruchy works") }' > /tmp/system_test.ruchy
ruchy compile /tmp/system_test.ruchy
./a.out
```
**Output**:
```
→ Compiling /tmp/system_test.ruchy...
✓ Successfully compiled to: a.out
ℹ Binary size: 3912352 bytes
System ruchy works
```
**Result**: ✅ PASS

### Example 7: Test Pipeline Operator
**Command**:
```bash
echo 'fun main() {
    let x = 42;
    println(x);
    fun double(n: i32) -> i32 { n * 2 }
    let result = 5 |> double();
    println(result);
}' > /tmp/feature_test.ruchy
ruchy compile /tmp/feature_test.ruchy && ./a.out
```
**Output**:
```
→ Compiling /tmp/feature_test.ruchy...
✓ Successfully compiled to: a.out
ℹ Binary size: 3912712 bytes
42
10
```
**Result**: ✅ PASS

## Notes

- All examples are bash workflow scripts, not Ruchy code
- Examples demonstrate compiler usage, version checking, and development workflows
- All tested commands work correctly with v3.66.1
- Pipeline operator working (validates Example 7)
- Compilation workflow functional

## Compatibility Impact

**Before Audit**: Unknown
**After Audit**: 100% (8/8)

**Overall Assessment**: Chapter is 100% functional. All compiler workflow examples work as documented.

## Recommendations

None - chapter is fully functional.

## Conclusion

**Chapter 22 Status**: 100% compatible (8/8 examples)

**Grade**: A (Excellent)

**Production Ready**: ✅ Yes - All compiler workflows operational

**Blocking Issues**: None

---

**Audit Complete**: 2025-10-02
**Next Audit**: BOOK-CH23-AUDIT (REPL & Object Inspection)
