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Parser improvements: - Added expression statement fallback in parse_statement() for flexible syntax - Fixed ternary operator to use PeekExpr instead of If AST (better lowering) - Added peek_token() check to avoid ?/?: operator conflicts LLVM Python improvements: - Added optional ESC_JSON_FIX environment flag for string concatenation - Improved PHI generation with better default handling - Enhanced substring tracking for esc_json pattern Documentation updates: - Updated language guide with peek expression examples - Added box theory diagrams to Phase 15 planning - Clarified peek vs when syntax differences These changes enable cleaner parser implementation for self-hosting, especially for handling digit conversion with peek expressions instead of 19-line if-else chains. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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Nyash Language Guide
Start here to learn Nyash language basics and find deeper references.
- Syntax Cheat Sheet: quick-reference/syntax-cheatsheet.md
- Full Language Reference (2025): reference/language/LANGUAGE_REFERENCE_2025.md
- Phase 12.7 Grammar (peek / ternary / sugar):
- Overview: development/roadmap/phases/phase-12.7/grammar-specs/README.md
- Tokens & Grammar: development/roadmap/phases/phase-12.7/ancp-specs/ANCP-Token-Specification-v1.md
- Sugar transformations (?., ??, |> ...): tools/nyfmt/NYFMT_POC_ROADMAP.md
Common Constructs
- Ternary operator:
cond ? then : else(Phase 12.7); lowered to If-expression - Peek expression:
peek value { lit => expr, else => expr } - Null-coalesce:
x ?? y→peek x { null => y, else => x } - Safe access:
a?.b→peek a { null => null, else => a.b }
When you need the implementation details
- Tokenizer: src/tokenizer.rs
- Parser: src/parser/expressions.rs, src/parser/statements.rs
- Lowering to MIR: src/mir/builder/**