1. A computer system, the computer system comprising a processor operatively coupled to a memory and one or more storage media having computer-executable instructions that, when executed by the processor, implement a method for integrating partial method implementations into a source code program that includes partial method calls, the method comprising: a processor acquiring a source code program that includes one or more partial method calls, wherein at least one of the partial method calls is associated with a partial method hook signature that is used to identify one or more partial method implementations outside of the at least one partial method call and that can be applied at the at least one partial method call to implement the at least one partial method call; the processor acquiring a particular partial method implementation that implements code for the least one partial method call and which is acquired upon identifying that the particular partial method implementation has a particular partial method hook signature matching the partial method hook signature of the least one partial method call; the processor injecting the particular partial method implementation into the source code by injecting implementation code from the particular partial method implementation directly into the source code; and the processor transforming the source code into target code by at least compiling the source code with the injected implementation code, while treating any unimplemented partial method calls as no operation instructions.