statement builders finished

src/main.cpp

@@ -1,3 +1,42 @@
-int main() {
-  return 0;
+#include <fstream>
+#include <iostream>
+#include <sstream>
+
+#include "error_handling.hpp"
+#include "expression_nodes.hpp"
+#include "statement_builders.hpp"
+#include "type_nodes.hpp"
+
+int main(int argc, char **argv) {
+  if (argc < 2 || argc > 2) {
+    std::cout << "Wrong argument count (one argument should be provided - "
+                 "source file)\n";
+    return 0;
+  }
+
+  std::string filename = argv[1];
+
+  std::ifstream in;
+  in.open(filename);
+
+  std::stringstream source_stream;
+
+  source_stream << in.rdbuf();
+
+  in.close();
+
+  std::string source = source_stream.str();
+
+  parser::ParseTree parse_tree(source);
+
+  if (!parse_tree.is_properly_parsed()) {
+    error_handling::handle_parsing_error(
+        "There are some parsing errors in file", parse_tree.get_root());
+  }
+
+  nodes::ExpressionStorage expression_storage;
+  nodes::TypeStorage type_storage;
+
+  builders::build_source_file(parse_tree.get_root(), expression_storage,
+                              type_storage);
 }