Release Highlights

• Added support for ForInLoop, branching, QuantumMeasurementAssignment, ClassicalAssignment, QuantumBarrier
• Added initial support for types with working implementations for UnsignedInteger, BitArrayType, AngleType and SignedIntegerType
• Initial testing routing with support for types UnsignedIntegerType, BitArrayType, SignedIntegerType, AngleType, ClassicalType
• Updated: File parsing and argument parsing for build_ast.py

Update notes

• Added Initial implementation for types.py
• Update log
  

  1. source/openqasm/src/openqasm/translator/context.py -
     • Span now optional
     • Context can now use the AssignmentOperator to assign value to previously declared symbol
     • Added support to store types
  2. source/openqasm/src/openqasm/translator/translator.py -
     • Updated quantum_gate definition
     • Updated PhaseGate definition
     • Added ForInLoop support. Added_get_range method with exception handling for wrong RangeDefinition
     • Added support for branching from context
     • Added_process_QuantumMeasurementAssignment for processing quantum measurement assignment as per AST
     • Improved file parsing routine
     • Added support to process ClassicalAssignment and QuantumBarrier
     • Quantum gate definitions now support names.
     • include_dirs, program_ast and includes_asts attributes now private
  3. source/openqasm/src/openqasm/translator/test.py - Added basic testing functionality for types UnsignedIntegerType, BitArrayType, SignedIntegerType, AngleType, ClassicalType using pytest
  4. source/openqasm/src/openqasm/translator/identifiers.py -
     • Updated get_identifier return type. All identifier types now have a common interface.
  5. source/openqasm/src/openqasm/translator/expressions.py - 
     • Expression evaluation now has its own function dict instead of eval calls
     • Added constants : Tau, euler
     • Added support for AssignmentOperator
  6. source/openqasm/src/openqasm/translator/exceptions.py - 
     • Added WrongRange exception when mandatory range values are missing
     • Added InvalidIncludePath exception when file specified is not present in any of the include paths. Also provides info on include paths if applicable.
     • Added ClassicalOverFlow exception when there is an integer overflow
     • Added InvalidOperation exception when given operator is not implemented for a given type with support for SignedIntegertypes
     • Added InvalidTypeAssignment when wrong types of operands are evaluated
  7. source/openqasm/src/openqasm/translator/types.py - Initial implementation for types.py
     • Added “working” implementation of UnsignedInteger and BitArrayType
     • Added “working” support for SignedIntegerType
     • Added BitArray and Angle support
  8. source/openqasm/src/openqasm/build_ast.py - 
     • Update file parsing and input argument specification
     • Added –help args and –translate flag
     • Now uses stdlib argparse to parse cli arguments
  9. Merged aspcompiler:master into refimpl
     - Notable changes: index set can now be specified by a signed or unsigned integer