1 files changed, 32 insertions, 0 deletions
diff --git a/tiger-compiler/lib/misc/symbol.cc b/tiger-compiler/lib/misc/symbol.cc
new file mode 100644
index 0000000..edd8c86
--- /dev/null
+++ b/tiger-compiler/lib/misc/symbol.cc
@@ -0,0 +1,32 @@
+/**
+ ** \file misc/symbol.cc
+ ** \brief Implementation of misc::symbol.
+ */
+
+#include <sstream>
+#include <string>
+
+#include <misc/symbol.hh>
+
+namespace misc
+{
+  symbol::symbol(const std::string& s)
+    : unique<std::string>(s)
+  {}
+
+  symbol::symbol(const char* s)
+    : unique<std::string>(std::string(s))
+  {}
+
+  symbol symbol::fresh() { return fresh("a"); }
+
+  symbol symbol::fresh(const symbol& s)
+  {
+    /// Counter of unique symbols.
+    static unsigned counter_ = 0;
+    std::string str = s.get() + "_" + std::to_string(counter_);
+    ++counter_;
+    return symbol(str);
+  }
+
+} // namespace misc