Qiskit / qiskit / 34398813091

88%

main: 88%

Build Type

Pull #16932

github

Committed by mtreinish

Commit Message

Skip a branch with no leaves when iterating a data tree

`iter_leaves` and `iter_path` primed their lookahead by taking the first leaf of
a nested branch and unwrapping it, so a branch with no leaves beneath it
panicked instead of yielding nothing. `leaf_count` is built on `iter_leaves`, and
assembling a `QuantumProgram` counts a structure's leaves, so a structure holding
an empty branch anywhere but at its root could not be used at all.

Both iterators now step over such a branch and carry on, which is what
`leaf_count` already documents and what `into_leaves` already does.

Pull Request Pull Request #16932: Skip a branch with no leaves when iterating a data tree

Coverage Stats

37 of 37 new or added lines in 1 file covered. (100.0%)

5 existing lines in 2 files now uncovered.

119536 of 135678 relevant lines covered (88.1%)

962783.59 hits per line