initial os release. I really expect SO much bugs, guys. good luck =)

sabry_build/src/filevisit.rs

@@ -0,0 +1,51 @@
+use std::{fs, io, path::Path};
+
+use proc_macro2::TokenStream;
+use sabry_procmacro_impl::impls::styly;
+use syn::{spanned::Spanned, visit::Visit};
+
+#[derive(Debug, thiserror::Error)]
+pub enum FileVisitError {
+    #[error("Could not read file")]
+    Read(#[from] io::Error),
+    #[error("styly! macro found, yet invalid")]
+    Styly(#[from] syn::Error),
+}
+
+/// Visit file, returning either [StylyVisitor] or error
+pub fn visit_file(path: &Path) -> Result<StylyVisitor, FileVisitError> {
+    let content = fs::read_to_string(path)?;
+    let code_file = syn::parse_file(&content)?;
+
+    let mut styly_visitor = StylyVisitor {
+        found_stylys: vec![],
+    };
+    styly_visitor.visit_file(&code_file);
+
+    Ok(styly_visitor)
+}
+
+/// Syn Visitor, which will look at every `styly!` macro,
+/// parse its input tokenstream and avaluate it, capturing [styly::MacroSyntax] result
+///
+/// ## Panics
+///
+/// If either macro body is not a [TokenStream], or [styly::parse_macro_syntax] is not [Ok]
+#[derive(Debug)]
+pub struct StylyVisitor {
+    pub found_stylys: Vec<styly::MacroSyntax>,
+}
+
+impl<'ast> Visit<'ast> for StylyVisitor {
+    fn visit_item_macro(&mut self, node: &'ast syn::ItemMacro) {
+        if node.mac.path.get_ident().is_some_and(|i| i == "styly") {
+            let body = node.mac.parse_body::<TokenStream>().unwrap_or_else(|_| {
+                panic!("could not parse `styly!` macro at {:?}", node.mac.span())
+            });
+            let macro_data = styly::parse_macro_syntax(body).unwrap_or_else(|_| {
+                panic!("could not parse `styly!` macro at {:?}", node.mac.span())
+            });
+            self.found_stylys.push(macro_data);
+        }
+    }
+}