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Improve error message on bad OpenQASM 3 basis_gates argument #12945

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merged 1 commit into from
Aug 12, 2024

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Summary

If the user requests a basis-gate name that cannot be used (like a keyword), there is nothing sensible we can output for a circuit that contains one of those operations. The exporter was already correctly erroring in these cases, but the error message was quite opaque.

Details and comments

Fix #12886

If the user requests a basis-gate name that cannot be used (like a
keyword), there is nothing sensible we can output for a circuit that
contains one of those operations.  The exporter was already correctly
erroring in these cases, but the error message was quite opaque.
@jakelishman jakelishman added stable backport potential The bug might be minimal and/or import enough to be port to stable Changelog: Bugfix Include in the "Fixed" section of the changelog mod: qasm3 Related to OpenQASM 3 import or export labels Aug 12, 2024
@jakelishman jakelishman added this to the 1.2.0 milestone Aug 12, 2024
@jakelishman jakelishman requested a review from a team as a code owner August 12, 2024 12:24
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One or more of the following people are relevant to this code:

  • @Qiskit/terra-core

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Pull Request Test Coverage Report for Build 10351808315

Details

  • 4 of 4 (100.0%) changed or added relevant lines in 1 file are covered.
  • 25 unchanged lines in 5 files lost coverage.
  • Overall coverage decreased (-0.02%) to 89.732%

Files with Coverage Reduction New Missed Lines %
crates/qasm2/src/expr.rs 1 94.02%
qiskit/transpiler/passes/synthesis/unitary_synthesis.py 2 88.39%
crates/qasm2/src/lex.rs 4 92.73%
qiskit/synthesis/two_qubit/xx_decompose/decomposer.py 6 90.84%
crates/qasm2/src/parse.rs 12 97.15%
Totals Coverage Status
Change from base Build 10339507099: -0.02%
Covered Lines: 67404
Relevant Lines: 75117

💛 - Coveralls

@Cryoris Cryoris self-assigned this Aug 12, 2024
@Cryoris Cryoris added this pull request to the merge queue Aug 12, 2024
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Cryoris commented Aug 12, 2024

@Mergifyio backport stable/1.2

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mergify bot commented Aug 12, 2024

backport stable/1.2

✅ Backports have been created

Merged via the queue into Qiskit:main with commit fb9c0db Aug 12, 2024
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mergify bot pushed a commit that referenced this pull request Aug 12, 2024
If the user requests a basis-gate name that cannot be used (like a
keyword), there is nothing sensible we can output for a circuit that
contains one of those operations.  The exporter was already correctly
erroring in these cases, but the error message was quite opaque.

(cherry picked from commit fb9c0db)
@jakelishman jakelishman deleted the qasm3/basis-gates-error branch August 12, 2024 15:47
github-merge-queue bot pushed a commit that referenced this pull request Aug 12, 2024
… (#12946)

If the user requests a basis-gate name that cannot be used (like a
keyword), there is nothing sensible we can output for a circuit that
contains one of those operations.  The exporter was already correctly
erroring in these cases, but the error message was quite opaque.

(cherry picked from commit fb9c0db)

Co-authored-by: Jake Lishman <jake.lishman@ibm.com>
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Changelog: Bugfix Include in the "Fixed" section of the changelog mod: qasm3 Related to OpenQASM 3 import or export stable backport potential The bug might be minimal and/or import enough to be port to stable
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qasm3.Exporter raises an obscure error on invalid basis-gate name
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