Add Rust bindings stub

crate/Cargo.toml

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+[package]
+name = "qibolab"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+pyo3 = { version = "0.20.2", features = ["auto-initialize"] }
+
+[dev-dependencies]
+anyhow = "1.0.79"

crate/examples/example.rs

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+use anyhow::Result;
+use qibolab::execute_qasm;
+
+const CODE: &str = r#"
+OPENQASM 2.0; 
+include "qelib1.inc"; 
+qreg q[3]; 
+creg a[2]; 
+cx q[0],q[2]; 
+x q[1]; 
+swap q[0],q[1]; 
+cx q[1],q[0]; 
+measure q[0] -> a[0]; 
+measure q[2] -> a[1];,
+"#;
+
+fn main() -> Result<()> {
+    let res = execute_qasm(CODE.to_owned(), "dummy".to_owned(), 10)?;
+    println!("{:#?}", res);
+
+    Ok(())
+}

crate/src/lib.rs

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+use pyo3::prelude::*;
+
+pub fn execute_qasm(circuit: String, platform: String, nshots: u32) -> PyResult<Vec<u32>> {
+    // TODO: move to the example, here for debug
+    println!(
+        "---\nExecuting:\n'''{}'''\n\non: {}\nwith: {} shots\n---\n",
+        circuit, platform, nshots
+    );
+
+    Python::with_gil(|py| {
+        let qibolab = PyModule::import(py, "qibolab")?;
+        qibolab
+            .getattr("execute_qasm")?
+            .call1((circuit, platform, nshots))?
+            .extract()
+    })
+}