Merge pull request #127 from LuoZijun/patch-3

add debug for module

Author: cmtt

ratel-wasm/Cargo.toml

@@ -10,4 +10,4 @@ crate-type = ["cdylib"]
 serde_json = "1.0"
 ratel = { path = "../ratel", version = "0.8.0" }
 ratel-codegen = { path = "../ratel-codegen", version = "0.8.0" }
-wasm-bindgen = "0.2.29"
+wasm-bindgen = "0.2.36"

ratel/src/ast/mod.rs

@@ -80,6 +80,7 @@ impl<T> Deref for Loc<T> {
     }
 }
 
+#[derive(Debug, Clone)]
 pub struct Program<'ast> {
     pub source: &'ast str,
     pub body: NodeList<'ast, Statement<'ast>>,

ratel/src/module.rs

@@ -1,8 +1,11 @@
 use toolshed::list::UnsafeList;
 use toolshed::Arena;
 use ast::StatementList;
+
+use std::fmt;
 use std::marker::PhantomData;
 
+
 /// A JavaScript module parsed to an AST.
 pub struct Module<'ast> {
     body: UnsafeList,
@@ -32,3 +35,13 @@ impl<'ast> Module<'ast> {
         &self.arena
     }
 }
+
+impl<'ast> fmt::Debug for Module<'ast> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "Module:").unwrap();
+        for elem in self.body().iter() {
+            write!(f, "\n\t{:?}", elem).unwrap()
+        }
+        Ok(())
+    }
+}