Describe the bug
If I understood correctly, there was a recent update to the tsfc repository #firedrakeproject/tsfc@1944432 that should make possible to compate integrals on facets in hexahedral meshes. Before it was not supported.

However, the following MVE produces the error messages shown below.
The same error occurs using ds (external facets ) in place of dS.

Enrico

from firedrake import *

mesh = UnitCubeMesh(2,2,2,hexahedral=True)

W = FunctionSpace(mesh, "DQ", 0)
u = Function(W)
v = TestFunction(W)


h = CellSize(W.mesh())
h_avg = (h('+') + h('-'))/2

a_dg = - 4.0/h_avg * jump(u)* jump(v) * dS
A = assemble(a_dg)

Error message

File "/home/firedrake/firedrake/src/tsfc/tsfc/fem.py", line 115, in use_canonical_quadrature_point_ordering
    return isinstance(self.fiat_cell, UFCHexahedron) and self.integral_type in ['exterior_facet', 'interior_facet']
                                                         ^^^^^^^^^^^^^^^^^^
AttributeError: 'PointSetContext' object has no attribute 'integral_type'

Environment:

• OS: Ubuntu
• Python version: 3.12.3
• Output of Firedrake Configuration:
  package_manager: False
  minimal_petsc: False
  mpicc: /home/firedrake/petsc/packages/bin/mpicc
  mpicxx: /home/firedrake/petsc/packages/bin/mpicxx
  mpif90: /home/firedrake/petsc/packages/bin/mpif90
  mpiexec: /home/firedrake/petsc/packages/bin/mpiexec
  disable_ssh: True
  honour_petsc_dir: True
  with_parmetis: False
  slepc: True
  packages: ['git+ssh://bitbucket.org/pefarrell/fascd.git@master#egg=fascd', 'git+ssh://github.com/firedrakeproject/gusto.git@main#egg=gusto', 'git+ssh://github.com/icepack/icepack.git#egg=icepack', 'git+ssh://bitbucket.org/pefarrell/fascd.git@master#egg=fascd', 'git+ssh://github.com/FEMlium/FEMlium.git@main#egg=FEMlium', 'git+ssh://github.com/g-adopt/g-adopt.git@master#egg=gadopt', 'git+ssh://github.com/icepack/icepack.git#egg=icepack', 'git+ssh://github.com/firedrakeproject/asQ.git@master#egg=asQ', 'git+ssh://github.com/firedrakeproject/gusto.git@main#egg=gusto', 'git+ssh://github.com/firedrakeproject/Irksome.git#egg=Irksome', 'git+ssh://github.com/thetisproject/thetis#egg=thetis', 'git+ssh://github.com/g-adopt/g-adopt.git@master#egg=gadopt', 'git+ssh://github.com/firedrakeproject/Irksome.git#egg=Irksome', 'git+ssh://github.com/thetisproject/thetis#egg=thetis', 'git+ssh://github.com/FEMlium/FEMlium.git@main#egg=FEMlium', 'git+ssh://bitbucket.org/pefarrell/defcon.git@master#egg=defcon', 'git+ssh://github.com/firedrakeproject/asQ.git@master#egg=asQ', 'git+ssh://bitbucket.org/pefarrell/defcon.git@master#egg=defcon']
  honour_pythonpath: False
  opencascade: False
  torch: cpu
  jax: cpu
  petsc_int_type: int32
  cache_dir: /home/firedrake/firedrake/.cache
  complex: False
  remove_build_files: False
  with_blas: None
  netgen: True
  Additions:
  None
  Environment:
  PYTHONPATH: None
  PETSC_ARCH: default
  PETSC_DIR: /home/firedrake/petsc
  Status of components:

|Package |Branch |Revision |Modified |

|FEMlium |main |7810749 |True |
|FInAT |master |d8836d5 |True |
|Irksome |master |1ecf180 |True |
|PyOP2 |master |31471a60 |False |
|asQ |master |fad5ccc |True |
|defcon |master |da0864d |True |
|fascd |master |2004948 |True |
|fiat |master |d167922 |True |
|firedrake |master |ed826a575 |False |
|g-adopt |master |ef38dba |True |
|gusto |main |cdd29825 |True |
|h5py |firedrake |db2ab02f |True |
|icepack |master |cc65af5 |True |
|libsupermesh |master |1eccc99 |True |
|loopy |main |b2c485f3 |True |
|pyadjoint |master |167619a |True |
|pytest-mpi |main |ee30587 |True |
|thetis |master |8c6f9d1e |True |
|tsfc |master |e06308d |True |
|ufl |master |0ae483bd |True |