Examples for 'xfun::cache_exec'

### ** Examples

# the first run takes about 1 second
y1 = xfun::cache_exec({
    x = rnorm(1e+05)
    Sys.sleep(1)
    x
}, path = ":memory:", id = "sim-norm")

# the second run takes almost no time
y2 = xfun::cache_exec({
    # comments won't affect caching
    x = rnorm(1e+05)
    Sys.sleep(1)
    x
}, path = ":memory:", id = "sim-norm")

# y1, y2, and x should be identical
stopifnot(identical(y1, y2), identical(y1, x))