Validate an odin model. This function is closer to odin_parse_ than odin_parse because it does not do any quoting of the code. It is primarily intended for use within other applications.
odin_validate(x, type = NULL, options = NULL)
An expression, character vector or filename with the odin code
An optional string indicating the the type of input -
must be one of
odin options; see odin_options. The
primary options that affect the parse stage are
odin_validate will always return a list with the same
TRUE if validation was successful
The intermediate representation, as returned by
odin_parse_, if the validation was successful,
An error object if the validation was unsuccessful,
NULL. This may be a classed odin error, in which
case it will contain source location information - see the
examples for details.
A list of messages, if the validation returned any. At present this is only non-fatal information about unused variables.
# A successful validation: odin::odin_validate(c("deriv(x) <- 1", "initial(x) <- 1")) # A complete failure: odin::odin_validate("") # A more interesting failure code <- c("deriv(x) <- a", "initial(x) <- 1") res <- odin::odin_validate(code) res # The object 'res$error' is an 'odin_error' object: res$error # It contains information that might be used to display to a # user information about the error: unclass(res$error) # Notes are raised in a similar way: code <- c("deriv(x) <- 1", "initial(x) <- 1", "a <- 1") res <- odin::odin_validate(code) res$messages[]
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