1 files changed, 80 insertions, 0 deletions
diff --git a/src/synexts/lang_item.cpp b/src/synexts/lang_item.cpp
new file mode 100644
index 00000000..58e706e6
--- /dev/null
+++ b/src/synexts/lang_item.cpp
@@ -0,0 +1,80 @@
+/*
+ * MRustC - Rust Compiler
+ * - By John Hodge (Mutabah/thePowersGang)
+ *
+ * synexts/lang_item.cpp
+ * - Binds language items to #[lang_item] tagged items
+ */
+#include <synext.hpp>
+#include "../common.hpp"
+#include "../ast/ast.hpp"
+
+
+void handle_lang_item(AST::Crate& crate, const AST::Path& path, const ::std::string& name, AST::eItemType type)
+{
+    if(name == "phantom_fn") {
+        crate.m_lang_item_PhantomFn = path;
+        crate.m_lang_item_PhantomFn.nodes().back().args() = { TypeRef("A"), TypeRef("B") };
+    }
+    else if( name == "send" ) {
+        // Don't care, Send is fully library in mrustc
+    }
+    else if( name == "sync" ) {
+        // Don't care, Sync is fully library in mrustc
+    }
+    else if( name == "sized" ) {
+        DEBUG("Bind 'sized' to " << path);
+    }
+    else if( name == "copy" ) {
+        DEBUG("Bind 'copy' to " << path);
+    }
+    // ops traits
+    else if( name == "drop" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "add" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "sub" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "mul" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "div" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "rem" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    
+    else if( name == "neg" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "not" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    
+    else if( name == "bitand" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "bitor"  ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "bitxor" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "shl" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "shr" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    
+    else if( name == "index" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "deref" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "index_mut" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "deref_mut" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "fn"      ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "fn_mut"  ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "fn_once" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    
+    else if( name == "eq"  ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    else if( name == "ord" ) { DEBUG("Bind '"<<name<<"' to " << path); }
+    
+    else if( name == "iterator" ) { /* mrustc just desugars? */ }
+    
+    else if( name == "debug_trait" ) { /* TODO: Poke derive() with this */ }
+    
+    else {
+        throw CompileError::Generic(FMT("Unknown lang item '" << name << "'"));
+    }
+}
+
+class Decorator_LangItem:
+    public CDecoratorHandler
+{
+public:
+    void handle_item(AST::Crate& crate, AST::Module& mod, const AST::MetaItem& attr, const AST::Path& path, AST::Trait& t) const override
+    {
+        handle_lang_item(crate, path, attr.string(), AST::ITEM_TRAIT);
+    }
+};
+
+STATIC_SYNEXT(Decorator, "lang", Decorator_LangItem)
+
+