Merge pull request #1122 from ethereum/firstClassFunctions

Functions as first-class types.

1 files changed, 11 insertions, 0 deletions

diff --git a/libsolidity/codegen/CompilerUtils.h b/libsolidity/codegen/CompilerUtils.h
index da74dc90..8e4033d6 100644
--- a/libsolidity/codegen/CompilerUtils.h
+++ b/libsolidity/codegen/CompilerUtils.h
@@ -114,6 +114,17 @@ public:
 	/// Stack post:
 	void memoryCopy();
 
+	/// Converts the combined and left-aligned (right-aligned if @a _rightAligned is true)
+	/// external function type <address><function identifier> into two stack slots:
+	/// address (right aligned), function identifier (right aligned)
+	void splitExternalFunctionType(bool _rightAligned);
+	/// Performs the opposite operation of splitExternalFunctionType(_rightAligned)
+	void combineExternalFunctionType(bool _rightAligned);
+	/// Appends code that combines the construction-time (if available) and runtime function
+	/// entry label of the given function into a single stack slot.
+	/// Note: This might cause the compilation queue of the runtime context to be extended.
+	void pushCombinedFunctionEntryLabel(Declaration const& _function);
+
 	/// Appends code for an implicit or explicit type conversion. This includes erasing higher
 	/// order bits (@see appendHighBitCleanup) when widening integer but also copy to memory
 	/// if a reference type is converted from calldata or storage to memory.