Fix escaping path on Windows

deno_bindgen_ir/codegen/deno.rs

@@ -127,8 +127,7 @@ impl<'a> Codegen<'a> {
       return self.lazy_dlopen(writer);
     }
     writeln!(writer, "const {{ dlopen }} = Deno;\n")?;
-    let target = self.target.to_string_lossy();
-    writeln!(writer, "const {{ symbols }} = dlopen('{target}', {{")?;
+    writeln!(writer, "const {{ symbols }} = dlopen({:?}, {{", self.target)?;
     self.write_symbols(writer)?;
     writeln!(writer, "}});\n")?;
 
@@ -137,8 +136,11 @@ impl<'a> Codegen<'a> {
 
   fn lazy_dlopen<W: Write>(&self, writer: &mut W) -> Result<()> {
     writeln!(writer, "let symbols: any;\n")?;
-    let target = self.target.to_string_lossy();
-    writeln!(writer, "export function load(path: string = '{target}') {{")?;
+    writeln!(
+      writer,
+      "export function load(path: string = {:?}) {{",
+      self.target
+    )?;
     writeln!(writer, "  const {{ dlopen }} = Deno;\n")?;
     writeln!(writer, "  const {{ symbols: symbols_ }} = dlopen(path, {{")?;
     struct WrapperWriter<'a, W: Write> {

deno_bindgen_macro/src/fn_.rs

@@ -72,7 +72,7 @@ fn parse_type(ty: &Box<syn::Type>) -> Result<Type> {
   }
 }
 
-pub fn handle_inner(
+pub(crate) fn handle_inner(
   fn_: ItemFn,
   attrs: FnAttributes,
 ) -> Result<(TokenStream2, SymbolBuilder)> {
@@ -209,7 +209,7 @@ pub fn handle_inner(
   ))
 }
 
-pub fn handle(fn_: ItemFn, attrs: FnAttributes) -> Result<TokenStream2> {
+pub(crate) fn handle(fn_: ItemFn, attrs: FnAttributes) -> Result<TokenStream2> {
   let (ffi_fn, _) = handle_inner(fn_, attrs)?;
   Ok(ffi_fn)
 }

e2e_test/bindings/mod.ts

@@ -5,7 +5,7 @@
 
 const { dlopen } = Deno;
 
-const { symbols } = dlopen('target/debug/libdeno_bindgen_e2e.dylib', {
+const { symbols } = dlopen("/Users/divy/gh/deno_bindgen/e2e_test/target/debug/libdeno_bindgen_e2e.dylib", {
   add: {
     parameters: [
       'i32',