testlist <- list(cx = c(2134291275L, 357367640L, -323003472L, 439641811L,  -1627038227L, -1741627831L, -942121028L, -1353570258L, -1998882403L,  662238740L, 928105553L, -2060835804L, 813765064L, -1292955271L,  -948947594L, -1017207733L, 958261601L, -1780517428L, 809049525L,  1665260179L, -1007985803L, -613618014L, -584836704L, -2101482565L,  -606856080L, -1282327069L, -900032210L), cy = c(-420149656L,  -1292753779L, -968819078L, -767861348L, -1778988495L, 1770819784L,  -1453063886L, 668834061L, -761301371L, -1852173736L, -636431700L,  1261390305L, 638784143L, -1616685240L, 123304750L, 907295753L,  -1280143803L, 1285594406L, -1318071300L, -1642275388L, 804279503L,  -1817503846L, 76728635L, -1509604262L, -1210933501L, 1916545315L,  -1409540023L, 419237448L, -312338560L, 221125394L, -1042002585L,  -376323680L, 1667277781L, -1664288441L, -921071135L, 379529476L,  21005326L, 1872699440L, -2089969812L, -27718559L, -1179699370L,  2083560773L, 1227761247L, -850369586L, -1863787009L, -2013450485L,  1808234345L, 545573849L, 855781295L, 852358267L, -82060599L,  1799264251L, 645200813L, 1915402461L, -248494575L, -1273893913L,  320509765L, -410271517L, -1499747311L, -649916929L, -1207391190L,  845481764L, -1790102199L), fun = -1184194678L, im = c(8.18711001407657e+299,  0.00468189194076409, 9.28697320897767e-257, -4.47313953005781e+269,  -1.08462202709686e-247, -1.06960341877259e+114, -3.47955013064173e-216,  -8.9518097672271e+215, 1.38348243341209e-136, 6.24605057871232e+181,  -4.11367928127064e+80, NaN, 2.79007508688443e+291, -2.43672528268817e+290,  1.13722118274863e+165, 1.24928798805976e+186, -9.06013680652417e-190,  1.2437247084887e-163, 1.07356550066254e-51, -6.72069897320444e-236,  3.93269171816182e-254, -3.45570679530885e+99, 8.95779391235146e+89,  -1.04429299113846e+114, 2.77225047393114e+43, -2.18557342377325e+139,  -2.63807973264429e-55, -1.77673745822268e-44), wx = c(330370028L,  -182916179L, 546887506L, -35752302L, 732748682L, -871629561L,  -743101914L, 758062913L, -517329450L, 1108968290L, -1319455314L,  942358627L, -686035292L, 652979193L, -1596645427L, 88018662L,  1765588140L, 1430195718L, -1715227439L, -269208378L, 253913653L,  219557805L, 1002944546L, -1920346377L, -980245734L, -776920982L,  1976843108L, -932173097L, -1835725408L, -1422111338L, -1966569704L,  1381830423L, -256757055L, 1666329816L, 661077231L, -681064598L,  -53212505L, NA), wy = c(171141674L, -132342758L, -567989167L,  -503371537L, -2612122L, -1001872361L, 877487859L, -10697975L,  -1892863097L, 1238343975L, -171083306L, -845036084L, 2045325885L,  836129893L, 599415075L, 370945190L, 1231039890L, 802142756L,  -1674315159L, 1407952975L, -1469608998L, 1054883681L, -1701280591L,  -1263446019L, 293900352L, 1397384688L, 2103400785L, 529506247L,  -164912844L, 199333541L, 1407952975L, -877843492L, 851123589L,  92435842L, -506473472L, 1584646228L, -1637250647L, 1243566020L,  967176709L, 1394467205L, -637662498L, -2139070110L, 1328898733L,  -1473642169L, -1802833698L, -1455447325L, -443226056L, -1295401589L,  -926455480L, 1204464278L, -15907928L, 927330251L, -807425415L,  525097988L, -515621741L, 234430165L, -1064886776L, 1388879441L,  -706545395L))
result <- do.call(imager:::extract_fast,testlist)
str(result)