Week Highlights

• Mentorship checkpoint 1 done!
• Added bitarray implementation and testing
• Updated structure as per new ast changes
• Updates in ast:
  • Refactored qasm_parset, removed - redundant files updated IOKeyword and TimeUnit node in ast.py. Fixed merge conflicts and reformatted
  • Updated desginator parameter to size - jakelishman

Update notes

1. source/openqasm/src/openqasm/translator/context.py-
   • Bug fixes according to the new changes in LiChens ast commits
2. source/openqasm/src/openqasm/translator/translator.py -
   • Bug fixes according to the new changes in LiChens ast commits
   • Removed unused imports
3. source/openqasm/src/openqasm/translator/bitarray.py -
   • Initial implementation for bitarray types
   • Fixed issue in RegisterView.getitem
   • Added implementation for BaseBitArray.getitem
   • Added additional ClassicalType as per specification by @mbhealy
   • Added initial code for duration type + bug fixes
   • Refactored implementation and changed List[Optional[bool]] -> Optional[str]
   • Implemented bitwise operations in BitArray
   • Added logical operators support
4. source/openqasm/src/openqasm/translator/tests/test_bitarray.py -
   • Added test file for bitarray type testing
5. source/openqasm/src/openqasm/translator/test.py -
   • Updated test.py to newer BitArrayType declaration syntax
6. source/openqasm/src/openqasm/translator/identifiers.py -
   • Removed redundant get_register
7. source/openqasm/src/openqasm/translator/types.py -
   • Updated code with simplifications
   • Bug fixes according to the new changes in LiChens ast commits

Meeting notes

• Openpulse backend support access if needed - Junye
• Cleanup minor details for implementation for the current progress.
• Charge forward to defcal!
• Seeking guidance if anyone has written openpulse grammars.
• Pluggable grammars: need to decide on which grammar to select and checkout if anyone has a sample grammer set.
• Look into implement physical qubit syntax and part of duration syntax.
• Openended questions may mean the grammar isnt even complete https://qiskit.github.io/openqasm/language/openpulse.html.
• Jack will check out with TSC if its possible to get a copy of openpulse grammar.
• May have to invent our own defcal grammar.