diff --git a/src/document.cpp b/src/document.cpp
index e69de29bb2..c797b988a1 100644
--- a/src/document.cpp
+++ b/src/document.cpp
@@ -0,0 +1,27 @@
+#include <cstdio>
+#include "document.hpp"
+
+namespace Sass {
+  Document::Document(char* _path, char* _source) {
+    path = _path;
+    if (!source) {
+      std::FILE *f;
+      f = std::fopen(path, "rb");
+      // if (!f) {
+      //   printf("ERROR: could not open file %s", path);
+      //   abort();
+      // }
+      std::fseek(f, 0, SEEK_END);
+      int len = std::ftell(f);
+      std::rewind(f);
+      // char *buf = (char *)malloc(len * sizeof(char) + 1);
+      source = new char[len + 1];
+      std::fread(source, sizeof(char), len, f);
+      source[len] = '\0';
+      std::fclose(f);
+    }
+    else {
+      source = _source;
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/document.hpp b/src/document.hpp
index 30e850cd53..cafc2c231e 100644
--- a/src/document.hpp
+++ b/src/document.hpp
@@ -2,11 +2,15 @@
 #include "node.hpp"
 
 namespace Sass {
+  using std::vector;
+
   struct Document {
-    using std::vector;
-    
+    char* path;
     char* source;
     unsigned int position;
+    unsigned int line_number;
     vector<Node> statements;
+    
+    Document(char* _path, char* _source = 0);
   };
 }
\ No newline at end of file
diff --git a/src/node.cpp b/src/node.cpp
index e69de29bb2..b0598b710b 100644
--- a/src/node.cpp
+++ b/src/node.cpp
@@ -0,0 +1,15 @@
+#include "node.hpp"
+
+namespace Sass {
+  Node::Node() { }
+  Node::Node(Node_Type _type, Token& _token) {
+    type = _type;
+    token = _token;
+  }
+  void Node::push_child(Node& node) {
+    children.push_back(node);
+  }
+  void Node::push_opt_child(Node& node) {
+    opt_children.push_back(node);
+  }
+}
\ No newline at end of file
diff --git a/src/node.hpp b/src/node.hpp
index 04613f2ce4..458e02dc7c 100644
--- a/src/node.hpp
+++ b/src/node.hpp
@@ -2,5 +2,29 @@
 #include "token.hpp"
 
 namespace Sass {
+  using std::vector;
   struct Node {
-    
\ No newline at end of file
+    enum Node_Type {
+      null,
+      comment,
+      rule_set,
+      declaration,
+      selector_group,
+      selector,
+      simple_selector_sequence,
+      simple_selector,
+      property,
+      value
+    };
+    
+    Node_Type type;
+    Token token;
+    vector<Node> children;
+    vector<Node> opt_children;
+    
+    Node();
+    Node(Node_Type _type, Token& _token);
+    void push_child(Node& node);
+    void push_opt_child(Node& node);
+  };
+}
\ No newline at end of file
diff --git a/src/token.cpp b/src/token.cpp
new file mode 100644
index 0000000000..e183d480a6
--- /dev/null
+++ b/src/token.cpp
@@ -0,0 +1,16 @@
+#include "token.hpp"
+
+namespace Sass {
+  Token::Token() {
+    begin = 0;
+    end = 0;
+    line_number = 1;
+  }
+  Token::Token(const char* _begin,
+               const char* _end,
+               unsigned int _line_number) {
+    begin = _begin;
+    end = _end;
+    line_number = _line_number;
+  }
+}
\ No newline at end of file
diff --git a/src/token.hpp b/src/token.hpp
new file mode 100644
index 0000000000..3e3d5588b4
--- /dev/null
+++ b/src/token.hpp
@@ -0,0 +1,12 @@
+namespace Sass {
+  struct Token {
+    const char* begin;
+    const char* end;
+    unsigned int line_number;
+    Token();
+    Token(const char* _begin,
+          const char* _end,
+          unsigned int _line_number);
+    inline bool is_null() { return begin == 0 || end == 0; }
+  };
+}
\ No newline at end of file
diff --git a/src/vectest.cpp b/src/vectest.cpp
new file mode 100644
index 0000000000..e733442b17
--- /dev/null
+++ b/src/vectest.cpp
@@ -0,0 +1,33 @@
+#include <vector>
+#include <iostream>
+
+using namespace std;
+
+struct box {
+  vector<int> vec;
+  vector<box> vec2;
+};
+
+int main() {
+  box b;
+  
+  b.vec.push_back(1);
+  b.vec.push_back(2);
+  b.vec.push_back(3);
+  
+  box c = b;
+  c.vec.push_back(4);
+  
+  cout << b.vec.size() << endl;
+  cout << c.vec.size() << endl;
+  
+  c.vec[0] = 42;
+  cout << b.vec[0] << endl;
+  cout << c.vec[0] << endl;
+  
+  b.vec2.push_back(c);
+  cout << b.vec2[0].vec[0] << endl;
+  
+  return 0;
+}
+