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Qiskit / qiskit / 18885771704
88%

Build:
DEFAULT BRANCH: main
Ran 28 Oct 2025 07:28PM UTC
Jobs 1
Files 873
Run time 3min
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28 Oct 2025 06:23PM UTC coverage: 88.182% (-0.008%) from 88.19%
18885771704

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Fix reuse of `ConsolidateBlocks` instances (#15258)

* Fix reuse of `ConsolidateBlocks` instances

The `_qubit_map` state added to `ConsolidateBlocks` in #15083 (cb103d95)
was attempting to get round an awkward internal `PassManager` use to
pass the mapping into recursive calls.  Unfortunately, the state was not
cleared on exit to the pass, so re-use of the pass object would be
invalid, such as by calling the `PassManager.run` method on the result
of `generate_preset_pass_manager` more than once on circuits with
different sizes.

Rather than trying to plaster over the poor use of state, this commit
instead moves the runtime logic to be in the `PropertySet`, so re-use
troubles are limited to single executions.  It's still technically
possible for the `PropertySet` to become polluted if `ConsolidateBlocks`
throws an internal exception that is forcibly suppressed such that the
pipeline continues, but this is completely non-standard, would require
significant effort to achieve, and most likely there are large numbers
of transpiler passes that are not completely exception-safe anyway.

* Add test of `PassManager.run` over a list

On some platforms this will be multiprocessing, but it doesn't hurt to
try it for the platforms that aren't.

* Document use of property-set key

8 of 8 new or added lines in 1 file covered. (100.0%)

20 existing lines in 3 files now uncovered.

93655 of 106206 relevant lines covered (88.18%)

1151764.64 hits per line

Uncovered Existing Lines

Lines Coverage ∆ File
4
72.86
-0.08% crates/circuit/src/parameter/symbol_expr.rs
4
92.54
-0.26% crates/qasm2/src/lex.rs
12
97.09
-0.47% crates/qasm2/src/parse.rs
Jobs
ID Job ID Ran Files Coverage
1 18885771704.1 28 Oct 2025 07:28PM UTC 873
88.18
GitHub Action Run
Source Files on build 18885771704
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  • List 873
  • Changed 5
  • Source Changed 1
  • Coverage Changed 5
Coverage ∆ File Lines Relevant Covered Missed Hits/Line
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