Fix tsp_core generic specialization benchmark pointing at empty line#25
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kinto0 wants to merge 2 commits into
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Fix tsp_core generic specialization benchmark pointing at empty line#25kinto0 wants to merge 2 commits into
kinto0 wants to merge 2 commits into
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_install_state_path() called Path.resolve() on the suite venv's python
executable, which follows symlinks to the base interpreter. On systems
where the base interpreter lives in a read-only location (e.g. a system
Python framework at /usr/local/fbcode/), this causes a PermissionError
when writing the per-suite install state file.
Drop .resolve() so the state file is written relative to the venv path,
which is always writable.
Test plan:
Before: bench-servers crashes immediately with PermissionError:
[Errno 1] Operation not permitted:
'/usr/local/fbcode/platform010/Python3.12.framework/...
/.python-lsp-compare-install.json'
After: bench-servers completes successfully across all 4 servers.
Pyrefly: 1 failed point (tsp_core/generic specialization —
pre-existing config bug, not caused by this change).
43 unit tests pass.
The "generic specialization computed type" benchmark point targeted
line 7 (0-indexed) in generics.py, which is an empty line. The actual
expression `text = identity("hello")` is on line 9. Pyrefly's
getComputedType correctly returned null for the empty line, causing
requireNonEmpty validation to fail on every iteration.
This was the sole Pyrefly failure across all 8 benchmark suites and
has been present since the original tsp_core commit (800936d).
Fix: change start_line and end_line from 7 to 9.
Test plan:
Before: bench-servers --server pyrefly --protocol tsp shows:
pyrefly: [tsp_core] generic specialization computed type failed:
Result validation failed: iteration 1: empty result;
iteration 1: size_chars=0 < 10 (repeated for all 5 iterations)
tsp_core: failed (1 failed point out of 8)
After: bench-servers --server pyrefly --protocol tsp shows:
pyrefly: [tsp_core] generic specialization computed type ok
tsp_core: ok (0 failed points, 8/8 pass)
Pyrefly total: 0 failures across all 8 benchmark suites.
43 unit tests pass.
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Closing to recreate with isolated diff. See replacement PR. |
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Summary
tsp_core/config.jsontargeted line 7 (0-indexed) ingenerics.py, which is an empty linetext = identity("hello")is on line 9getComputedTypecorrectly returned null for the empty line, causingrequireNonEmptyvalidation to fail on every iterationstart_lineandend_linefrom 7 to 9_install_state_path()symlink fix from Fix install state path resolving symlinks to unwritable system Python #24Test plan
bench-servers --server pyrefly --protocol tspshows:pyrefly: [tsp_core] generic specialization computed type failed: Result validation failed: iteration 1: empty result; iteration 1: size_chars=0 < 10(repeated for all 5 iterations).tsp_core: failed (1 failed point out of 8)bench-servers --server pyrefly --protocol tspshows:pyrefly: [tsp_core] generic specialization computed type ok.tsp_core: ok (0 failed points, 8/8 pass). Pyrefly total: 0 failures across all 8 benchmark suites. 43 unit tests pass.