1 files changed, 42 insertions, 0 deletions
diff --git a/tiger-compiler/src/ast/op-exp.cc b/tiger-compiler/src/ast/op-exp.cc
new file mode 100644
index 0000000..6db4940
--- /dev/null
+++ b/tiger-compiler/src/ast/op-exp.cc
@@ -0,0 +1,42 @@
+/**
+ ** \file ast/op-exp.cc
+ ** \brief Implementation of ast::OpExp.
+ */
+
+#include <ast/op-exp.hh>
+#include <ast/visitor.hh>
+
+namespace ast
+{
+  OpExp::OpExp(const Location& location,
+               Exp* left,
+               OpExp::Oper oper,
+               Exp* right)
+    : Exp(location)
+    , left_(left)
+    , oper_(oper)
+    , right_(right)
+  {}
+
+  OpExp::~OpExp()
+  {
+    delete left_;
+    delete right_;
+  }
+
+  void OpExp::accept(ConstVisitor& v) const { v(*this); }
+
+  void OpExp::accept(Visitor& v) { v(*this); }
+} // namespace ast
+
+std::string str(ast::OpExp::Oper oper)
+{
+  static const std::unordered_map<ast::OpExp::Oper, std::string> op_str = {
+    {ast::OpExp::Oper::add, "+"}, {ast::OpExp::Oper::sub, "-"},
+    {ast::OpExp::Oper::mul, "*"}, {ast::OpExp::Oper::div, "/"},
+    {ast::OpExp::Oper::eq, "="},  {ast::OpExp::Oper::ne, "<>"},
+    {ast::OpExp::Oper::lt, "<"},  {ast::OpExp::Oper::le, "<="},
+    {ast::OpExp::Oper::gt, ">"},  {ast::OpExp::Oper::ge, ">="}};
+
+  return op_str.at(oper);
+}