dot-call_specified_fn: Call a spec function with properly-named context arguments

In stbl: Stabilize Function Arguments

Call a spec function with properly-named context arguments

Description

Stabilizer functions use either x_arg/call or .x_arg/.call as parameter names depending on how they were created. This helper finds the relevant formal name for each argument independently using rlang::fn_fmls_names() and dispatches accordingly.

Usage

.call_specified_fn(spec_fn, .x, .x_arg, .call)

Arguments

spec_fn	A stabilizer function.
.x	The value to validate.
.x_arg	⁠(length-1 character)⁠ The name of the argument being stabilized to use in error messages. The automatic value will work in most cases, or pass it through from higher-level functions to make error messages clearer in unexported functions.
.call	(environment) The execution environment to mention as the source of error messages.

Value

The validated value.

stbl documentation built on April 4, 2026, 5:06 p.m.