updated compiler to support multiple frontends and backends

compiler/src/frontend/mod.rs

@@ -0,0 +1,15 @@
+use crate::model::{CompilerError, Program};
+
+mod c;
+mod dsc;
+
+pub fn compiler_frontend(ext: &str, data: &str) -> Result<Program, CompilerError> {
+    match ext {
+        "dsc" => Ok(dsc::generate_ast(&data)?),
+        "c" => Ok(c::generate_ast(&data)?),
+        _ => Err(CompilerError::Generic(format!(
+            "File type {} not supported",
+            ext
+        ))),
+    }
+}