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### BREAKPOINTS
.ESSBP. <- new.env()
### DEBUG/UNDEBUG
.ess_find_funcs <- function(env) {
objs <- ls(envir = env, all.names = TRUE)
if (length(objs) > 0)
objs <- objs[sapply(objs, exists, envir = env,
mode = 'function', inherits = FALSE)]
objs
}
.ess_all_functions <- function(packages = c(), env = NULL) {
if(is.null(env))
env <- parent.frame()
empty <- emptyenv()
coll <- list()
for(p in packages){
## package might not be attached
try(
{
objNS <- .ess_find_funcs(asNamespace(p))
objPKG <- .ess_find_funcs(as.environment(paste0('package:', p)))
objNS <- setdiff(objNS, objPKG)
if(length(objPKG))
coll[[length(coll) + 1]] <- paste0(p, ':::', objNS)
}, silent = TRUE)
}
while(!identical(empty, env)){
coll[[length(coll) + 1]] <- .ess_find_funcs(env)
env <- parent.env(env)
}
grep('^\\.ess', unlist(coll, use.names = FALSE),
invert = TRUE, value = TRUE)
}
.ess_dbg_flag_for_debuging <- function(fname){
all <- utils::getAnywhere(fname)
if(length(all$obj) == 0){
msg <- sprintf("No functions names '%s' found", fname)
} else {
msg <- sprintf("Flagged '%s' for debugging", fname)
tryCatch(lapply(all$obj, debug),
error = function(e){
msg <- paste0("Error: ", e$message)
})
}
cat(msg)
.ess_mpi_message(msg)
}
.ess_dbg_getTracedAndDebugged <- function()
{
packages <- base::.packages()
tr_state <- tracingState(FALSE)
on.exit(tracingState(tr_state))
generics <- methods::getGenerics()
all_traced <- c()
for(i in seq_along(generics)){
genf <- methods::getGeneric(generics[[i]],
package=generics@package[[i]])
if(!is.null(genf)){ ## might happen !! v.2.13
menv <- methods::getMethodsForDispatch(genf)
traced <- unlist(eapply(menv, is, 'traceable', all.names=TRUE))
if(length(traced) && any(traced))
all_traced <- c(paste(generics[[i]],':',
names(traced)[traced],sep=''), all_traced)
tfn <- getFunction(generics[[i]], mustFind=FALSE, where = .GlobalEnv)
if(!is.null(tfn ) && is(tfn, 'traceable')) # if the default is traced, it does not appear in the menv :()
all_traced <- c(generics[[i]], all_traced)
}
}
debugged_pkg <- unlist(lapply(packages, function(pkgname){
ns <- asNamespace(pkgname)
funcs <- .ess_find_funcs(ns)
dbged <- funcs[unlist(lapply(funcs,
function(f){
isdebugged(get(f, envir = ns, inherits = FALSE))
}))]
if(length(dbged))
paste0(pkgname, ':::`', dbged, '`')
}))
env <- parent.frame()
## traced function don't appear here. Not really needed and would affect performance.
all <- .ess_all_functions(packages = packages, env = env)
which_deb <- lapply(all, function(nm){
## if isdebugged is called with string it doess find
tryCatch(isdebugged(get(nm, envir = env)),
error = function(e) FALSE)
## try(eval(substitute(isdebugged(nm), list(nm = as.name(nm)))), silent = T)
})
debugged <- all[which(unlist(which_deb, recursive=FALSE, use.names=FALSE))]
unique(c(debugged_pkg, debugged, all_traced))
}
.ess_dbg_UntraceOrUndebug <- function(name, env = parent.frame()) {
tr_state <- tracingState(FALSE)
on.exit(tracingState(tr_state))
if( grepl('::', name) ){
## foo:::bar name
eval(parse(text = sprintf('undebug(%s)', name)))
}else{
## name is a name of a function to be undebugged or has a form
## name:Class1#Class2#Class3 for traced methods
name <- strsplit(name, ':', fixed = TRUE)[[1]]
if( length(name)>1 ){
## a method
fun <- name[[1]]
sig <- strsplit(paste(name[-1], collapse=''), '#', fixed=TRUE)[[1]]
untrace(fun, signature = sig)
}else{
## function
if( is(getFunction(name, where = parent.frame()), 'traceable') )
untrace(name)
else if(grepl(":", name))
undebug(name)
else
undebug(get(name, envir = env))
}}
}
.ess_dbg_UndebugALL <- function(funcs)
{
tr_state <- tracingState(FALSE)
on.exit(tracingState(tr_state))
env <- parent.frame()
invisible(lapply(funcs, function( nm ) {
## ugly tryCatch, but there might be several names pointing to the
## same function, like foo:::bar and bar. An alternative would be
## to call .ess_dbg_getTracedAndDebugged each time but that might
## be ery slow
try(.ess_dbg_UntraceOrUndebug(nm, env = env), TRUE)
}))
}
### WATCH
.ess_watch_expressions <- list()
.ess_watch_eval <- function()
{
env <- as.environment("ESSR")
exps <- get('.ess_watch_expressions', envir = env)
if(length(exps) == 0) {
## using old style so this can be parsed by R 1.9.1 (e.g):
cat('\n# Watch list is empty!\n',
'# a append new expression',
'# i insert new expression',
'# k kill',
'# e edit the expression',
'# r rename',
'# n/p navigate',
'# u/d,U move the expression up/down',
'# q kill the buffer',
sep="\n")
} else {
.parent_frame <- parent.frame()
.essWEnames <- allNames(exps)
len0p <- !nzchar(.essWEnames)
.essWEnames[len0p] <- seq_along(len0p)[len0p]
oo <- options(width = 10000)
on.exit(options(oo))
for(i in seq_along(exps)) {
cat('\n@---- ', .essWEnames[[i]], ' ',
rep.int('-', max(0, 35 - nchar(.essWEnames[[i]]))), '-@\n', sep = '')
expr <- gsub(" +", " ", paste(deparse(exps[[i]][[1]]), collapse = " "))
cat(paste('@---:', expr), ' \n', sep = '')
tryCatch(print(eval(exps[[i]],
envir = .parent_frame)),
error = function(e) cat('Error:', e$message, '\n' ),
warning = function(w) cat('warning: ', w$message, '\n' ))
}
}
}
.ess_watch_assign_expressions <- function(elist) {
assign(".ess_watch_expressions", elist, envir = as.environment("ESSR"))
}
.ess_log_eval <- function(log_name) {
env <- as.environment("ESSR")
if(!exists(log_name, envir = env, inherits = FALSE))
assign(log_name, list(), envir = env)
log <- get(log_name, envir = env, inherits = FALSE)
.essWEnames <- allNames(.ess_watch_expressions)
cur_log <- list()
.parent_frame <- parent.frame()
for(i in seq_along(.ess_watch_expressions)) {
capture.output( {
cur_log[[i]] <-
tryCatch(eval(.ess_watch_expressions[[i]]),
envir = .parent_frame,
error = function(e) paste('Error:', e$message, '\n'),
warning = function(w) paste('warning: ', w$message, '\n'))
if(is.null(cur_log[i][[1]]))
cur_log[i] <- list(NULL)
})
}
names(cur_log) <- .essWEnames
assign(log_name, c(log, list(cur_log)), envir = env)
invisible(NULL)
}
.ess_package_attached <- function(pack_name){
as.logical(match(paste0("package:", pack_name), search()))
}
## magrittr debug_pipe
.ess_pipe_browser <- function(x){
if(is.list(x))
evalq({
browser(skipCalls = 2)
x
}, envir = x)
else if(is.environment(x))
## enclos argumentn has no effect for unclear reason, need to hack
eval(bquote({
x <- .(environment())
browser(skipCalls = 2)
x
}), envir = x)
else {
browser(skipCalls = 0)
x
}
}
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