[lesnik512]

Summary

• Consolidate generated dependency-error handling into one handler and move error enrichment into Python.
• Preserve traceback line attribution, missing-context parameter naming, and alias hop order.

Verification

• 1,127 tests passed. Ruff and ty passed.
• Three alternating baseline and candidate benchmark runs on Python 3.14.7 showed warm chain and fan-out medians within 1%. Cold first resolution measured 3.9% faster for transient factories and 2.9% faster for cached factories, with run-to-run variation.

[github-actions]

Benchmark

Details

Benchmark suite	Current: 125aebd	Previous: 601dc39	Ratio
benchmarks/test_guard_by_type.py::test_g16_resolve_by_type	3987359.7506044516 iter/sec (stddev: 1.6046493949129354e-8)	3195822.8294665394 iter/sec (stddev: 2.7394314912652647e-8)	0.80
benchmarks/test_guard_by_type.py::test_g17_resolve_by_type_large_registry	4007637.4348105434 iter/sec (stddev: 7.008145313772388e-9)	3136520.5379575305 iter/sec (stddev: 4.788010436514527e-8)	0.78
benchmarks/test_guard_cold.py::test_g8_cold_first_resolve	17138.81987706003 iter/sec (stddev: 0.00005228297919579172)	14221.487300887924 iter/sec (stddev: 0.000055437290338994584)	0.83
benchmarks/test_guard_cold.py::test_g8b_cold_first_resolve_cached	13979.133311965043 iter/sec (stddev: 0.0001596626861821142)	11316.093094626509 iter/sec (stddev: 0.0001591476702734994)	0.81
benchmarks/test_guard_concurrency.py::test_g14_concurrent_cached_hit[1]	524.3632696525808 iter/sec (stddev: 0.000022198884149837372)	401.643404530851 iter/sec (stddev: 0.00014572539321911952)	0.77
benchmarks/test_guard_concurrency.py::test_g14_concurrent_cached_hit[2]	508.2027959581437 iter/sec (stddev: 0.000020859824609554957)	409.8701042300772 iter/sec (stddev: 0.00014535466016301986)	0.81
benchmarks/test_guard_concurrency.py::test_g14_concurrent_cached_hit[4]	485.6789052682181 iter/sec (stddev: 0.000040651963171774184)	373.7238923804447 iter/sec (stddev: 0.00020295028743771084)	0.77
benchmarks/test_guard_concurrency.py::test_g15_concurrent_first_resolve[1]	15558.846539706487 iter/sec (stddev: 0.000009236784648418103)	13091.71554058384 iter/sec (stddev: 0.000010823964594858789)	0.84
benchmarks/test_guard_concurrency.py::test_g15_concurrent_first_resolve[2]	7808.563690835971 iter/sec (stddev: 0.00001773978281949938)	6938.158344510628 iter/sec (stddev: 0.000018666009454119386)	0.89
benchmarks/test_guard_concurrency.py::test_g15_concurrent_first_resolve[4]	4030.081197739529 iter/sec (stddev: 0.00003011781479917681)	3386.612078990588 iter/sec (stddev: 0.000032436980602163054)	0.84
benchmarks/test_guard_concurrency.py::test_g15b_concurrent_first_resolve_sibling_children[1]	11960.039117328446 iter/sec (stddev: 0.000011255484245783646)	9257.771301105973 iter/sec (stddev: 0.000012109411309515935)	0.77
benchmarks/test_guard_concurrency.py::test_g15b_concurrent_first_resolve_sibling_children[2]	5235.245311818328 iter/sec (stddev: 0.00003969839580669262)	3845.31711993532 iter/sec (stddev: 0.000025610569858480256)	0.73
benchmarks/test_guard_concurrency.py::test_g15b_concurrent_first_resolve_sibling_children[4]	2400.8067190737574 iter/sec (stddev: 0.000036675176664086894)	1888.5897607528568 iter/sec (stddev: 0.00015039915793162506)	0.79
benchmarks/test_guard_concurrency.py::test_g15c_worker_pool_floor_control[1]	41984.950494451696 iter/sec (stddev: 0.000003993410322610523)	32626.9330438905 iter/sec (stddev: 0.00000581526700329527)	0.78
benchmarks/test_guard_concurrency.py::test_g15c_worker_pool_floor_control[2]	16722.51755275202 iter/sec (stddev: 0.000013952963141497537)	12183.535211096323 iter/sec (stddev: 0.0000913220953165528)	0.73
benchmarks/test_guard_concurrency.py::test_g15c_worker_pool_floor_control[4]	6786.8627602410825 iter/sec (stddev: 0.000024236226576611354)	6234.8875418722655 iter/sec (stddev: 0.00003645578690046843)	0.92
benchmarks/test_guard_lifecycle.py::test_g6_build_child_container	1679018.7881372292 iter/sec (stddev: 2.957616498599548e-8)	1519963.5239118275 iter/sec (stddev: 4.73936786390673e-8)	0.91
benchmarks/test_guard_lifecycle.py::test_g6b_build_child_container_auto_scope	1783932.3443662908 iter/sec (stddev: 3.192051103286996e-8)	1594934.5516631696 iter/sec (stddev: 3.18962324705687e-8)	0.89
benchmarks/test_guard_lifecycle.py::test_g7_request_lifecycle_batch	3591.7216994203445 iter/sec (stddev: 0.000008931297481072736)	3273.0857808711353 iter/sec (stddev: 0.000012283093948527261)	0.91
benchmarks/test_guard_lifecycle.py::test_g7c_event_loop_floor_control	58574.972654491066 iter/sec (stddev: 0.0000015415411414897238)	57375.97910630188 iter/sec (stddev: 0.0000027231786894094364)	0.98
benchmarks/test_guard_lifecycle.py::test_g7b_request_cycle_sync	470035.90439791686 iter/sec (stddev: 9.504930441185017e-8)	423240.79540104314 iter/sec (stddev: 8.353396994752869e-8)	0.90
benchmarks/test_guard_lifecycle.py::test_g13_teardown_at_scale	72103.57801208971 iter/sec (stddev: 0.000001495072599613251)	63167.63569641636 iter/sec (stddev: 0.000002107807341798179)	0.88
benchmarks/test_guard_lifecycle.py::test_g13b_teardown_at_scale_async_no_finalizers	638.3634246858825 iter/sec (stddev: 0.00125444525254309)	564.9937617643658 iter/sec (stddev: 0.0010786054759759783)	0.89
benchmarks/test_guard_resolve.py::test_g1_transient_resolve	2262611.4710867153 iter/sec (stddev: 2.6560986126991852e-8)	1881703.9525482305 iter/sec (stddev: 3.564850359065427e-8)	0.83
benchmarks/test_guard_resolve.py::test_g2_cached_resolve	3567318.1291142926 iter/sec (stddev: 9.335817523301916e-9)	3109860.5187163213 iter/sec (stddev: 3.8337461034704355e-8)	0.87
benchmarks/test_guard_resolve.py::test_g3_deep_chain	835251.872081605 iter/sec (stddev: 1.3080956734914201e-7)	747402.1981247334 iter/sec (stddev: 6.470115908009587e-8)	0.89
benchmarks/test_guard_resolve.py::test_g4_wide_resolve	471936.8531500896 iter/sec (stddev: 4.0443795873989275e-7)	444104.9114367946 iter/sec (stddev: 4.1761664070317884e-7)	0.94
benchmarks/test_guard_resolve.py::test_g5_cross_scope	2081980.6964984536 iter/sec (stddev: 2.3613703388209097e-8)	1753124.8683764848 iter/sec (stddev: 2.8219596410056658e-8)	0.84
benchmarks/test_guard_resolve.py::test_g9_context_resolve	1648001.199086896 iter/sec (stddev: 1.4186550019163246e-7)	1333909.1374438996 iter/sec (stddev: 1.6149405786368403e-7)	0.81
benchmarks/test_guard_resolve.py::test_g12_override_active_resolve	884409.257731147 iter/sec (stddev: 4.385935237067249e-8)	805359.1821415069 iter/sec (stddev: 7.027716715947648e-8)	0.91
benchmarks/test_guard_resolve.py::test_g18_alias_hop	3840581.3103868603 iter/sec (stddev: 8.632498645105599e-9)	3401982.6210326203 iter/sec (stddev: 3.295357721128272e-8)	0.89
benchmarks/test_guard_validate.py::test_g10_validate_deep_chain	45252.081471302314 iter/sec (stddev: 0.0000023496503351584774)	36269.042743564816 iter/sec (stddev: 0.0000034716544723171916)	0.80
benchmarks/test_guard_validate.py::test_g11_validate_wide	26196.36827348353 iter/sec (stddev: 0.0000027100718712669715)	21672.715184302084 iter/sec (stddev: 0.0000037443032008704793)	0.83

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