Say I have a Groovy function in a Nextflow script: def foo() { def x = [1, 2] def inc = x.each{val -> val + 1} return inc } def bar() { def y = [1, 2] def dec = y.each{val -> val - 1} return dec } workflow wf { main: foo() bar() } workflow { wf() wf() } A…

Are Groovy closure signatures in global scope in Nextflow?

paolo (Paolo Di Tommaso) July 27, 2024, 9:10am 2

In this example val is closure parameter, as such it’s only accessible in the closure scope.

Read more here

1 Like

Topic		Replies	Views
Failure of scope in groovy functions called from Nextflow subworkflows Ask for help	0	55	June 24, 2024
Help needed with channels Ask for help nextflow	1	20	April 8, 2025
Variable defined w/ def gives "Missing name with which to set the channel variable" Ask for help	3	202	March 22, 2024
Checking contents of ParamsMap with 'Access to undefined parameter' warning? Ask for help	3	135	July 1, 2024
Using groovy without bash in process Ask for help nextflow	5	32	March 28, 2025