US Patent 11048487 Syntactical change-resistant code generation

Systems and methods for syntactical change-resistant code generation are described. A code generator can generate syntactical change-resistant code from original code and new code, where the new code may be intended as a replacement or update for the original code. The code generator can determine, for code portions and/or sub-portions of the new code, whether or not semantic, syntactic, and structural differences from the original code exist. The code generator can generate the syntactical change-resistant code to leverage and include in the syntactical change-resistant code portions and sub-portions of the original code that have been used and tested, so as to improve reliability of the syntactical change-resistant code.