codetools {codetools}
Low Level Code Analysis Tools for R
Description
These functions provide some tools for analysing R code. Mainly indented to support the other tools in this package and byte code compilation.
Usage
collectLocals(e, collect) collectUsage(fun, name = "", ...) 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.
Documentation reproduced from package codetools, version 0.2-8. License: GPL