This invention discloses a conditional compilation and
dynamic feature management system, belonging to the field of
software build and
configuration management technology. The
system includes a build-time conditional import module configured to selectively import modules using conditional expressions. These conditional expressions are evaluated during the build phase, and the module packaging tool completely removes module dependencies corresponding to inactive code branches during the build process. The
system also includes a runtime feature checking module and a hierarchical feature control module, distinguishing between build-time feature control and runtime feature control. Build-time feature control achieves code
elimination through conditional expressions, while runtime feature control dynamically controls the execution path through status query callbacks. The
system further includes an on-demand loading module for delayed initialization of heavy subsystems; a code
elimination verification module to verify the complete
elimination of inactive code; a
feature dependency management module to manage dependencies and
mutual exclusion relationships between feature flags; a feature
documentation generation module to automatically generate feature configuration documents; and a feature flag definition module to centrally define feature flags to ensure
type safety. This invention achieves collaborative work between compile-time code optimization and runtime
behavior control, balancing streamlined build artifacts with runtime flexibility, and can be widely applied to feature management and build optimization of large-scale
software systems.