Forces a deferred string into extended form
Examples
x <- as.character(1:3)
deferred_expand(x)
alt_inspect(x)
#> @5642f413bce8 16 STRSXP g0c0 [REF(4)] <expanded string conversion>
#> @5642f5664058 16 STRSXP g0c3 [REF(1)] (len=3, tl=0)
#> @5642ef130eb8 09 CHARSXP g1c1 [MARK,REF(2338),gp=0x61] [ASCII] [cached] "1"
#> @5642eef76a08 09 CHARSXP g1c1 [MARK,REF(2384),gp=0x61] [ASCII] [cached] "2"
#> @5642ef475020 09 CHARSXP g1c1 [MARK,REF(1010),gp=0x61] [ASCII] [cached] "3"