Added CZ gate to parser

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-latest", "windows-latest", "macos-latest"]
-        python: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python: ["3.10", "3.11", "3.12", "3.13"]
 
     name: "Python ${{ matrix.python }} / ${{ matrix.os }}"
     runs-on: ${{ matrix.os }}

graphix_qasm_parser/parser.py

@@ -13,7 +13,7 @@
     ParserRuleContext,
 )
 from graphix import Circuit
-from graphix.instruction import CCX, CNOT, RX, RY, RZ, RZZ, SWAP, H, I, S, X, Y, Z
+from graphix.instruction import CCX, CNOT, CZ, RX, RY, RZ, RZZ, SWAP, H, I, S, X, Y, Z
 from openqasm_parser import qasm3Lexer, qasm3Parser, qasm3ParserVisitor
 
 # override introduced in Python 3.12
@@ -302,6 +302,9 @@ def visitGateCallStatement(self, ctx: qasm3Parser.GateCallStatementContext) -> N
         elif gate == "swap":
             # https://openqasm.com/language/standard_library.html#swap
             instruction = SWAP(targets=(operands[0], operands[1]))
+        elif gate == "cz":
+            # https://openqasm.com/language/standard_library.html#cz
+            instruction = CZ(targets=(operands[0], operands[1]))
         elif gate == "h":
             # https://openqasm.com/language/standard_library.html#h
             instruction = H(target=operands[0])

requirements.txt

@@ -1,2 +1,2 @@
-graphix>=0.3.1
+graphix @ git+https://github.com/TeamGraphix/graphix.git@add_cz_instruction
 openqasm-parser>=3.1.0

tests/test_parser.py

@@ -3,7 +3,7 @@
 import math
 
 import pytest
-from graphix.instruction import CCX, CNOT, RX, RY, RZ, RZZ, SWAP, H, S, X, Y, Z
+from graphix.instruction import CCX, CNOT, CZ, RX, RY, RZ, RZZ, SWAP, H, S, X, Y, Z
 
 from graphix_qasm_parser import OpenQASMParser
 
@@ -51,6 +51,7 @@ def test_parse_all_instructions() -> None:  # noqa: PLR0915
 crz(pi/3) q[0], q[1];
 cx q[0], q[1];
 swap q[0], q[1];
+cz q[0], q[1];
 h q[0];
 s q[0];
 x q[0];
@@ -82,6 +83,9 @@ def test_parse_all_instructions() -> None:  # noqa: PLR0915
     assert isinstance(instruction, SWAP)
     assert instruction.targets == (0, 1)
     instruction = next(iterator)
+    assert isinstance(instruction, CZ)
+    assert instruction.targets == (0, 1)
+    instruction = next(iterator)
     assert isinstance(instruction, H)
     assert instruction.target == 0
     instruction = next(iterator)