Add criterion and use it to benchmark the creation of elements

"cargo bench" runs the benchmark

autosar-data/Cargo.toml

@@ -20,6 +20,11 @@ num-traits = "0.2.18"
 
 [dev-dependencies]
 tempfile = "3.8"
+criterion = { version = "0.3", features = ["html_reports"]}
 
 [[example]]
 name = "demo"
+
+[[bench]]
+name = "create_elements"
+harness = false

autosar-data/benches/create_elements.rs

@@ -0,0 +1,85 @@
+use autosar_data::*;
+use criterion::{criterion_group, criterion_main, Criterion};
+use std::fmt::Write;
+
+fn create_elements_a() {
+    let model = AutosarModel::new();
+    let _file = model.create_file("file", AutosarVersion::LATEST);
+    let packages = model
+        .root_element()
+        .create_sub_element(ElementName::ArPackages)
+        .unwrap();
+    let package = packages
+        .create_named_sub_element(ElementName::ArPackage, "package")
+        .unwrap();
+    let elements = package.create_sub_element(ElementName::Elements).unwrap();
+
+    let sub_elem_info = elements.list_valid_sub_elements();
+
+    let mut name = String::with_capacity(20);
+    let mut seq_id = 0;
+    for ValidSubElementInfo {
+        element_name,
+        is_named,
+        is_allowed,
+    } in sub_elem_info
+    {
+        for _ in 0..4 {
+            name.clear();
+            seq_id += 1;
+            write!(name, "element_{seq_id}").unwrap();
+            if is_allowed {
+                if is_named {
+                    elements.create_named_sub_element(element_name, &name).unwrap();
+                } else {
+                    elements.create_sub_element(element_name).unwrap();
+                }
+            }
+        }
+    }
+}
+
+fn create_elements_b() {
+    let model = AutosarModel::new();
+    let _file = model.create_file("file", AutosarVersion::LATEST);
+    let packages = model
+        .root_element()
+        .create_sub_element(ElementName::ArPackages)
+        .unwrap();
+    let package = packages
+        .create_named_sub_element(ElementName::ArPackage, "package")
+        .unwrap();
+    let elements = package.create_sub_element(ElementName::Elements).unwrap();
+
+    let sub_elem_info = elements.list_valid_sub_elements();
+
+    let mut name = String::with_capacity(20);
+    let mut seq_id = 0;
+    for _ in 0..4 {
+        for ValidSubElementInfo {
+            element_name,
+            is_named,
+            is_allowed,
+        } in &sub_elem_info
+        {
+            name.clear();
+            seq_id += 1;
+            write!(name, "element_{seq_id}").unwrap();
+            if *is_allowed {
+                if *is_named {
+                    elements.create_named_sub_element(*element_name, &name).unwrap();
+                } else {
+                    elements.create_sub_element(*element_name).unwrap();
+                }
+            }
+        }
+    }
+}
+
+pub fn criterion_benchmark(c: &mut Criterion) {
+    c.bench_function("create_elements (a)", |b| b.iter(|| create_elements_a()));
+    c.bench_function("create_elements (b)", |b| b.iter(|| create_elements_b()));
+}
+
+criterion_group!(benches, criterion_benchmark);
+criterion_main!(benches);