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fix: release typecheck environment allocations

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2026-10-01 23:53:08 +00:00
parent 68ae75129d
commit da51e33411
3 changed files with 53 additions and 2 deletions
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@@ -49,6 +49,8 @@ The `RUN COMMAND` path now decodes POSIX `pclose()` wait status before storing `
`LIST FOLDER ... AS ...` now releases its evaluated path and the temporary folder-list value after runtime storage copies the list. `python3 tools/validate_list_folder_expression_cleanup.py` reproduced 220,000 leaked bytes across 2,000 operations under ASan/UBSan/LSan before the change and passes after it with no leak report. The working-tree checks `make -s all`, `./claro test` (0 failures), `./claro doctor`, `./claro validate`, and `git diff --check` pass. This is a narrow ownership improvement, not a claim that all runtime allocations are leak-free.
The `DELETE FILE ...` and `DELETE FOLDER ...` commands now release their evaluated path values after converting the paths to owned strings. `python3 tools/validate_delete_expression_cleanup.py` first reproduced 178,000 leaked bytes across 2,000 `DELETE FILE` expression evaluations under ASan/UBSan/LSan, then passed after cleanup. This check covers expression ownership; malformed-input diagnostic paths still have the previously documented `rt_error` message leak. The `COPY FILE` and `MOVE FILE` commands now also release their evaluated source/destination path values after conversion to strings; `python3 tools/validate_copy_move_expression_cleanup.py` reproduced 74,000 bytes leaked across 1,000 copy/move pairs before the fix and is the focused ASan/UBSan/LSan regression gate. `CREATE FOLDER ...` now releases its evaluated path value after converting it to an owned path string; `python3 tools/validate_create_folder_expression_cleanup.py` reproduced 200,000 leaked bytes across 2,000 calls before the fix and passes with ASan/UBSan/LSan enabled. This narrow cleanup slice does not establish that all runtime allocations are leak-free.
`typecheck` now frees its temporary type environment on return, including the owned variable names and type-string values; replacing an inferred type releases the previous value first. `python3 tools/validate_typecheck_token_cleanup.py` reproduced 479 bytes of leaked type-environment allocations before the change, then passed under ASan/UBSan/LSan with the fix. The validator is named for the original local work file; it specifically checks type-environment cleanup, not tokenizer allocations. This is a narrow cleanup slice and does not establish that all typecheck metadata allocations are leak-free.
## Feature matrix
### Beginner scripting core