Runtime helper: undo the cmt(0) -> cmt(initial) rewrite before evaluating the captured object expression.

Wrapped around the captured expression at construction time when tar_nlmixr_protect_zero_initial() performed any rewrites. Needed for pipe forms like pheno |> model({...}) and pheno |> ini(...), because nlmixr2's pipe handlers parse pheno's body before the existing nlmixr_object_simplify_zero_initial_helper() could intervene. Harmless for symbol-only forms (the existing helper reaches them at simplify time anyway).

Usage

nlmixr_object_zero_initial_eval(expr, envir = parent.frame())

Arguments

expr

A quoted (unevaluated) language object.

envir

The parent environment for evaluation. Defaults to the caller's frame (the targets execution env).

Value

The result of evaluating the corrected expression.

Details

Mechanism:

• Walk the quoted expression, rewriting name(initial) <- val back to name(0) <- val via the existing inverse helper.

• Walk the (rewritten) expression for symbols. For each that resolves to a function whose body still contains name(initial) <- val inside model({...}), build a corrected closure with name(0) <- val and bind it in an override frame.

• Evaluate the rewritten expression in the override frame (whose parent is envir), so any lookup of a rewritten symbol hits the corrected closure first.

The corrected copies retain the original closure environment of the user's function; only the body is swapped.