added comments to the parser

Author: skidy89

__test__/languages.d.ts

@@ -4,8 +4,15 @@
 /* eslint-disable */
 
 export interface Lang {
-    'hello': string;
+    /**
+     * this is
+     * a multi-line
+     * string
+     * test
+     */
     'test': string;
+    /** hello world */
+    'hello': string;
 }
 
 export interface Langs {

src/lib.rs

@@ -203,6 +203,19 @@ pub fn generate_typescript_defs(dir: String, output: String) -> Result<()> {
   defs.push_str("export interface Lang {\n");
   if let Some(first_lang) = langs.values().next() {
     for key in first_lang.keys() {
+      // add comments with the value
+      if let Some(value) = first_lang.get(key) {
+        let comment_lines: Vec<&str> = value.lines().collect();
+        if comment_lines.len() == 1 {
+          defs.push_str(&format!("    /** {} */\n", comment_lines[0]));
+        } else {
+          defs.push_str("    /**\n");
+          for line in comment_lines {
+            defs.push_str(&format!("     * {}\n", line));
+          }
+          defs.push_str("     */\n");
+        }
+      }
       defs.push_str(&format!("    '{}': string;\n", key));
     }
   }