1 files changed, 83 insertions, 0 deletions
diff --git a/src/hir/item_path.hpp b/src/hir/item_path.hpp
new file mode 100644
index 00000000..78056064
--- /dev/null
+++ b/src/hir/item_path.hpp
@@ -0,0 +1,83 @@
+/*
+ * MRustC - Rust Compiler
+ * - By John Hodge (Mutabah/thePowersGang)
+ *
+ * hir/item-path.hpp
+ * - Printable path to an item in the HIR
+ */
+#pragma once
+
+namespace HIR {
+
+class ItemPath
+{
+    const ItemPath* parent = nullptr;
+    const ::HIR::TypeRef* ty = nullptr;
+    const ::HIR::SimplePath* trait = nullptr;
+    const ::HIR::PathParams* trait_params = nullptr;
+    const char* name = nullptr;
+    
+public:
+    ItemPath() {}
+    ItemPath(const ItemPath& p, const char* n):
+        parent(&p),
+        name(n)
+    {}
+    ItemPath(const ::HIR::TypeRef& type):
+        ty(&type)
+    {}
+    ItemPath(const ::HIR::TypeRef& type, const ::HIR::SimplePath& path, const ::HIR::PathParams& params):
+        ty(&type),
+        trait(&path),
+        trait_params(&params)
+    {}
+    ItemPath(const ::HIR::SimplePath& path):
+        trait(&path)
+    {}
+    
+    ::HIR::SimplePath get_simple_path() const {
+        if( parent ) {
+            assert(name);
+            return parent->get_simple_path() + name;
+        }
+        else {
+            assert(!name);
+            return ::HIR::SimplePath();
+        }
+    }
+    const char* get_name() const {
+        return name ? name : "";
+    }
+    
+    ItemPath operator+(const ::std::string& name) const {
+        return ItemPath(*this, name.c_str());
+    }
+    
+    friend ::std::ostream& operator<<(::std::ostream& os, const ItemPath& x) {
+        if( x.parent ) {
+            os << *x.parent;
+        }
+        if( x.name ) {
+            os << "::" << x.name;
+        }
+        else if( x.ty ) {
+            os << "<" << *x.ty;
+            if( x.trait ) {
+                os << " as " << *x.trait;
+                if( x.trait_params ) {
+                    os << *x.trait_params;
+                }
+            }
+            os << ">";
+        }
+        else if( x.trait ) {
+            os << "<* as " << *x.trait << ">";
+        }
+        else {
+        }
+        return os;
+    }
+};
+
+}
+