Fix #149

imports.d

@@ -7,14 +7,19 @@ module imports;
 
 import stdx.d.ast;
 import std.stdio;
+import std.container;
 
 class ImportPrinter : ASTVisitor
 {
+	this()
+	{
+		imports = new RedBlackTree!string;
+	}
+
 	override void visit(const SingleImport singleImport)
 	{
 		ignore = false;
 		singleImport.accept(this);
-		writeln();
 		ignore = true;
 	}
 
@@ -22,15 +27,19 @@ class ImportPrinter : ASTVisitor
 	{
 		if (ignore) return;
 		bool first = true;
+		string s;
 		foreach (ident; identifierChain.identifiers)
 		{
 			if (!first)
-				write(".");
-			write(ident.text);
+				s ~= ".";
+			s ~= ident.text;
 			first = false;
 		}
+		imports.insert(s);
 	}
 
+	RedBlackTree!string imports;
+
 	alias visit = ASTVisitor.visit;
 
 	bool ignore = true;

main.d

@@ -175,6 +175,8 @@ int main(string[] args)
 			{
 				auto visitor = new ImportPrinter;
 				visitor.visit(mod);
+				foreach (imp; visitor.imports[])
+					writeln(imp);
 			}
 			else if (ast)
 			{