lazyeval (version 0.1.10)

make_call: Make a call with lazy_dots as arguments.

Description

In order to exactly replay the original call, the environment must be the same for all of the dots. This function circumvents that a little, falling back to the baseenv() if all environments aren't the same.

Usage

make_call(fun, args)

Arguments

fun

Function as symbol or quoted call.

args

Arguments to function; must be a lazy_dots object, or something as.lazy_dots() can coerce..

Value

• A list:
• env
  The common environment for all elements
• expr
  The expression

Examples

make_call(quote(f), lazy_dots(x = 1, 2))
make_call(quote(f), list(x = 1, y = ~x))
make_call(quote(f), ~x)

# If no known or no common environment, fails back to baseenv()
make_call(quote(f), quote(x))