Package compile provides helpers for compiling FHIRPath strings into FHIRPath expressions.

Package expr contains all the expression types and related logic for FHIRPath expressions.

Package funcs provides the implementations for all base FHIRPath functions.

Package opts is an internal package that exists for setting configuration settings for FHIRPath.

Package parser provides the logic for traversing the ANTLR generated parse tree.

Package reflection provides types and utility functions to enable FHIRPath type reflection.