feat(profiling): add memory profiling

Cargo.lock

@@ -2,20 +2,178 @@
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 version = 3
 
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 dependencies = [
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+ "dhat",
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+
 [[package]]
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 version = "1.0.78"
@@ -34,6 +192,76 @@ dependencies = [
  "proc-macro2",
 ]
 
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@@ -65,8 +293,71 @@ dependencies = [
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+ "windows_i686_gnu",
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Cargo.toml

@@ -8,10 +8,16 @@ edition = "2021"
 [dependencies]
 thiserror = "1"
 anyhow = "1"
-
+dhat = "0.3"
 
 [dev-dependencies]
 
+[profile.release]
+debug = 1
+
+[features]
+dhat = []
+
 [package.metadata.clippy]
 warn = [
     "clippy::pedantic",

src/main.rs

@@ -1,10 +1,17 @@
+#[cfg(feature = "dhat")]
+#[global_allocator]
+static ALLOC: dhat::Alloc = dhat::Alloc;
+
 use std::{fs::File, io::Read};
 
 use anyhow::Result;
 use customs_rs::process::process;
 
 fn main() -> Result<()> {
-    let filename = "customs.i8";
+    #[cfg(feature = "dhat")]
+    let _profiler = dhat::Profiler::new_heap();
+
+    let filename = "customs.i9";
     println!("\nFilename: {}\n", &filename);
     let mut file = File::open(format!("data/input/{}", &filename))?;
     let mut contents = String::new();

src/process.rs

@@ -59,7 +59,7 @@ pub fn parse_input(input: &str) -> Result<Output, ParseError> {
             continue;
         }
         let new = Officer::new(customs_id, first.citizen.time, CitizenshipType::Citizen);
-        customs.citizens.push(new);
+        customs.push(new);
     }
 
     for customs_id in 1..=first.noncitizen.count {
@@ -75,7 +75,7 @@ pub fn parse_input(input: &str) -> Result<Output, ParseError> {
             first.noncitizen.time,
             CitizenshipType::NonCitizen,
         );
-        customs.noncitizens.push(new);
+        customs.push(new);
     }
 
     let data = Data::new(customs, citizens);