Allow inserting low-level functions without calling them.

1 files changed, 10 insertions, 0 deletions

diff --git a/libsolidity/codegen/CompilerContext.h b/libsolidity/codegen/CompilerContext.h
index 58d6cb2a..c37142c9 100644
--- a/libsolidity/codegen/CompilerContext.h
+++ b/libsolidity/codegen/CompilerContext.h
@@ -104,6 +104,16 @@ public:
 		unsigned _outArgs,
 		std::function<void(CompilerContext&)> const& _generator
 	);
+	/// Returns the tag of the named low-level function and inserts the generator into the
+	/// list of low-level-functions to be generated, unless it already exists.
+	/// Note that the generator should not assume that objects are still alive when it is called,
+	/// unless they are guaranteed to be alive for the whole run of the compiler (AST nodes, for example).
+	eth::AssemblyItem lowLevelFunctionTag(
+		std::string const& _name,
+		unsigned _inArgs,
+		unsigned _outArgs,
+		std::function<void(CompilerContext&)> const& _generator
+	);
 	/// Generates the code for missing low-level functions, i.e. calls the generators passed above.
 	void appendMissingLowLevelFunctions();