Skip to content

block g[[ on non-atomic input #4161

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
mattdowle merged 2 commits into from
Jan 8, 2020
Merged

block g[[ on non-atomic input #4161

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
a387663
block g[[ on non-atomic input
Jan 5, 2020
a016a11
Merge branch 'master' into gforce-atomic
mattdowle Jan 8, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions NEWS.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,8 @@ unit = "s")

4. If `.SD` is returned as-is during grouping, it is now unlocked for downstream usage, part of [#4159](https://github.com/Rdatatable/data.table/issues/4159).

5. `GForce` is deactivated for `[[` on non-atomic input, part of [#4159](https://github.com/Rdatatable/data.table/issues/4159).

## NOTES

1. `as.IDate`, `as.ITime`, `second`, `minute`, and `hour` now recognize UTC equivalents for speed: GMT, GMT-0, GMT+0, GMT0, Etc/GMT, and Etc/UTC, [#4116](https://github.com/Rdatatable/data.table/issues/4116).
Expand Down
8 changes: 6 additions & 2 deletions R/data.table.R
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1522,7 +1522,11 @@ replace_dot_alias = function(e) {
jvnames = sdvars
}
} else if (length(as.character(jsub[[1L]])) == 1L) { # Else expect problems with <jsub[[1L]] == >
subopt = length(jsub) == 3L && (jsub[[1L]] == "[" || jsub[[1L]] == "[[") && (is.numeric(jsub[[3L]]) || jsub[[3L]] == ".N")
# g[[ only applies to atomic input, for now, was causing #4159
subopt = length(jsub) == 3L &&
(jsub[[1L]] == "[" ||
(jsub[[1L]] == "[[" && eval(call('is.atomic', jsub[[2L]]), envir = x))) &&
(is.numeric(jsub[[3L]]) || jsub[[3L]] == ".N")
headopt = jsub[[1L]] == "head" || jsub[[1L]] == "tail"
firstopt = jsub[[1L]] == "first" || jsub[[1L]] == "last" # fix for #2030
if ((length(jsub) >= 2L && jsub[[2L]] == ".SD") &&
Expand Down Expand Up @@ -1649,7 +1653,7 @@ replace_dot_alias = function(e) {
# otherwise there must be three arguments, and only in two cases:
# 1) head/tail(x, 1) or 2) x[n], n>0
length(q)==3L && length(q3 <- q[[3L]])==1L && is.numeric(q3) &&
( (q1c %chin% c("head", "tail") && q3==1L) || ((q1c == "[" || q1c == "[[") && q3>0L) )
( (q1c %chin% c("head", "tail") && q3==1L) || ((q1c == "[" || (q1c == "[[" && eval(call('is.atomic', q[[2L]]), envir=x))) && q3>0L) )
}
if (jsub[[1L]]=="list") {
GForce = TRUE
Expand Down
8 changes: 7 additions & 1 deletion inst/tests/tests.Rraw
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -8045,6 +8045,11 @@ options(datatable.optimize=Inf)
test(1581.14, ans2 <- dt[x %in% letters[15:20], d1[[2]], by=x, verbose=TRUE],
output = "GForce optimized j")
test(1581.15, ans1, ans2)
# also, block for non-atomic input, #4159
dt = data.table(a=1:3)
dt[ , l := .(list(1, 2, 3))]
test(1581.16, dt[ , .(l = l[[1L]]), by=a, verbose=TRUE],
dt[ , l := unlist(l)], output='(GForce FALSE)')

# handle NULL value correctly #1429
test(1582, uniqueN(NULL), 0L)
Expand Down Expand Up @@ -16729,7 +16734,8 @@ test(2130.03, print(DT), output=c(" x y", "1: 1 <ex_class[3]>",
# .SD from grouping should be unlocked, part of #4159
x = data.table(a=1:3, b=4:6)
test(2131, lapply(x[ , list(dt = list(.SD)), by = a]$dt, attr, '.data.table.locked'),
list(NULL, NULL, NULL))
list(NULL, NULL, NULL))


########################
# Add new tests here #
Expand Down