Editing Self (programming language) (section)

===Optimizations===
The run time system selectively flattens call structures. This gives modest speedups in itself, but allows extensive caching of type information and multiple versions of code for different caller types. This removes the need to do many method lookups and permits conditional branch statements and hard-coded calls to be inserted- often giving C-like performance with no loss of generality at the language level, but on a fully garbage collected system.<ref>{{cite thesis |url=https://www.cs.tufts.edu/~nr/cs257/archive/craig-chambers/thesis.pdf |title=The Design and Implementation of the SELF Compiler, an Optimizing Compiler for Object-Oriented Programming Languages |first=Craig |last=Chambers |publisher=[[Stanford University]] |degree=PhD |date=March 13, 1992}}</ref>