moduleSource: Create a 'module' source
In anhinton/conduit: A prototype glue system for OpenAPI

Description Usage Arguments Details Value See Also Examples

Create a moduleSource object for use in a module's sources list.

1	moduleSource(vessel, order = NULL)

`vessel`	`vessel` object
`order`	numeric value specifying source position in sources

The contents of a module's source script are provided by the vessel object. For inline code use a scriptVessel object. For a script file on the local filesystem use fileVessel.

vessel cannot be an inputVessel object, as these are not defined for moduleIO objects.

module sources are exectuted in the order determined by each source's ‘order’.

Running order is:

negative numbers in ascending order
zero
no order specified
positive numbers in ascending order

named moduleSource list containing:

vessel: vessel object
order: numeric value determining position of source in sources

module, fileVessel, scriptVessel

## create moduleSource with source script inline
val1 <- c("x <- 1:10", "y <- rnorm(10, 0, 1)", "plot(x, y)")
src1 <- moduleSource(vessel = scriptVessel(value = val1),
                     order = -1)

## create a moduleSource with source script from file
modScript <- system.file("extdata", "simpleGraphScripts", "createGraph.R",
                         package = "conduit")
src2 <- moduleSource(vessel = fileVessel(ref = modScript))