Method CompileOptions

cel/library.go:162–204

CompileOptions returns options for the standard CEL function declarations and macros.

()

// CompileOptions returns options for the standard CEL function declarations and macros.
func (lib *stdLibrary) CompileOptions() []EnvOption {
	funcs := stdlib.Functions()
	macros := StandardMacros
	if lib.subset != nil {
		subMacros := []Macro{}
		for _, m := range macros {
			if lib.subset.SubsetMacro(m.Function()) {
				subMacros = append(subMacros, m)
			}
		}
		macros = subMacros
		subFuncs := []*decls.FunctionDecl{}
		for _, fn := range funcs {
			if f, include := lib.subset.SubsetFunction(fn); include {
				subFuncs = append(subFuncs, f)
			}
		}
		funcs = subFuncs
	}
	return []EnvOption{
		func(e *Env) (*Env, error) {
			var err error
			if err = lib.subset.Validate(); err != nil {
				return nil, err
			}
			if len(funcs) > 0 {
				e.ensureMutableFunctions()
			}
			for _, fn := range funcs {
				existing, found := e.functions[fn.Name()]
				if found {
					fn, err = existing.Merge(fn)
					if err != nil {
						return nil, err
					}
				}
				e.functions[fn.Name()] = fn
			}
			return e, nil
		},
		Macros(macros...),
	}
}

// ProgramOptions returns function implementations for the standard CEL functions.
func (*stdLibrary) ProgramOptions() []ProgramOption {