codetools
Low Level Code Analysis Tools for R
Description
These functions provide some tools for analysing R code. Mainly intended to support the other tools in this package and byte code compilation.
Usage
collectLocals(e, collect) collectUsage(fun, name = "<anonymous>", ...) constantFold(e, env = NULL, fail = NULL) findFuncLocals(formals, body) findLocals(e, envir = .BaseEnv) findLocalsList(elist, envir = .BaseEnv) flattenAssignment(e) getAssignedVar(e) isConstantValue(v, w) makeCodeWalker(..., handler, call, leaf) makeLocalsCollector(..., leaf, handler, isLocal, exit, collect) makeUsageCollector(fun, ..., name, enterLocal, enterGlobal, enterInternal, startCollectLocals, finishCollectLocals, warn, signal) walkCode(e, w = makeCodeWalker())
Arguments
e | R expression. |
elist | list of R expressions. |
v | R object. |
fun | closure. |
formals | formal arguments of a closure. |
body | body of a closure. |
name | character. |
env | character. |
envir | environment. |
w | code walker. |
... | extra elements for code walker. |
collect | function. |
fail | function. |
handler | function. |
call | function. |
leaf | function. |
isLocal | function. |
exit | function. |
enterLocal | function. |
enterGlobal | function. |
enterInternal | function. |
startCollectLocals | function. |
finishCollectLocals | function. |
warn | function. |
signal | function. |
Author(s)
Luke Tierney
Copyright (©) 1999–2012 R Foundation for Statistical Computing.
Licensed under the GNU General Public License.