assembler: small misc updates, I am tired

assembler/src/main.rs

@@ -1,3 +1,10 @@
+use std::sync::Arc;
+
+use assembler::{
+    error::{AssembleError, AssembleErrorKind, ParserError},
+    model::module::Module,
+    source::{source_info::SourceInfo, token::TokenType, tokeniser::Tokeniser},
+};
 use common as _;
 use num_cpus as _;
 use threadpool as _;
@@ -5,9 +12,31 @@ use threadpool as _;
 // use clap::Parser;
 // use std::{fs, io::Write, path::PathBuf};
 
-fn main() {
+fn main() -> Result<(), AssembleError> {
     // // Parse command line arguments
     // let args: Vec<String> = std::env::args().collect();
+    let contents = include_bytes!("../../resources/dsa/bf.dsa").to_vec();
+
+    let module = Arc::new(Module::new("resources/dsa/bf.dsa")?);
+    let tok = Tokeniser::from_data(contents, module.clone());
+
+    let ts = tok
+        .tokenise()?
+        .into_iter()
+        .filter(|t| !matches!(t.token_type, TokenType::Eof | TokenType::Newline));
+
+    for t in ts {
+        t.source_info.print_context_with_underline()?;
+    }
+
+    let test_error: AssembleError = AssembleError::new_source_error(
+        SourceInfo::new(45, module.clone(), 4..7),
+        AssembleErrorKind::Parser(ParserError::InvalidInstruction),
+    );
+
+    eprintln!("\n\n{test_error}");
+
+    Ok(())
 
     // let _clap_args = assembler::args::Args::parse();