42 lines
1.6 KiB
Markdown
42 lines
1.6 KiB
Markdown
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# Nyash Syntax Torture (10 minimal repros)
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Date: 2025-09-16
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Purpose: stress parser → AST → MIR(Core-13/PURE) → Interpreter/VM/LLVM(AOT) consistency.
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Each test is **one phenomenon per file**, tiny and deterministic.
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## How to run (suggested)
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```
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# 1) Run all modes and compare outputs
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bash run_spec_smoke.sh
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# 2) PURE mode (surface MIR violations):
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NYASH_MIR_CORE13_PURE=1 bash run_spec_smoke.sh
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# 3) Extra logging when a case fails:
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NYASH_VM_STATS=1 NYASH_VM_STATS_JSON=1 NYASH_VM_DEBUG_BOXCALL=1 bash run_spec_smoke.sh
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# For LLVM diagnostics (when applicable):
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# NYASH_LLVM_VINVOKE_TRACE=1 NYASH_LLVM_VINVOKE_PREFER_I64=1 bash run_spec_smoke.sh
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```
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## Expected outputs (goldens)
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We deliberately **print a single line** per test to make diffing trivial.
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See inline comments in each `*.nyash`.
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## File list
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1. 01_ops_assoc.nyash – operator associativity & coercion order
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2. 02_deep_parens.nyash – deep parentheses & arithmetic nesting
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3. 03_array_map_nested.nyash – nested array/map literal & access
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4. 04_map_array_mix.nyash – object/array cross indexing & updates
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5. 05_string_concat_unicode.nyash – string/number/Unicode concatenation
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6. 06_control_flow_loopform.nyash – break/continue/dispatch shape
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7. 07_await_nowait_mix.nyash – nowait/await interleave determinism
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8. 08_visibility_access.nyash – private/public & override routing
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9. 09_lambda_closure_scope.nyash – closure capture & shadowing
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10. 10_match_result_early_return.nyash – early return vs. branch merge
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## CI hint
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- Add this suite **before** your self-host smokes:
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- `make spec-smoke` -> `make smoke-selfhost`
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- Fail fast on any diff across Interpreter/VM/LLVM.
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