Newer
Older
### This program is free software; you can redistribute it and/or
### modify it under the terms of the GNU General Public Licence as
### published by the Free Software Foundation; either version 2 of the
### Licence, or (at your option) any later version.
###
### This program is distributed in the hope that it will be useful,
### but WITHOUT ANY WARRANTY; without even the implied warranty of
### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
### GNU General Public Licence for more details.
###
### A copy of version 2 of the GNU General Public Licence is available
### at <http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt>; the
### latest version of the GNU General Public Licence is available at
### <http://www.gnu.org/licenses/gpl.txt>.
### KLUDGE: this assumes that we're being sourced with chdir=TRUE.
### (If not, `swank:swank-require` will work under the circumstances
### that it used to work anyway -- i.e. the working directory is the
### swankr directory)
swankrPath <- getwd()
swank <- function(port=4005) {
acceptConnections(port, FALSE)
}
startSwank <- function(portFile) {
acceptConnections(4005, portFile)
}
acceptConnections <- function(port, portFile) {
if(portFile != FALSE) {
f <- file(portFile, open="w+")
cat(port, file=f)
close(f)
}
## FIXME: maybe we should support dontClose here?
s <- socketConnection(host="localhost", server=TRUE, port=port, open="r+b")
on.exit(close(s))
tryCatch(serve(s), endOfFile=function(c) NULL)
}
serve <- function(io) {
mainLoop(io)
}
mainLoop <- function(io) {
slimeConnection <- new.env()
slimeConnection$io <- io
withRestarts(tryCatch(dispatch(slimeConnection, readPacket(io)),
swankTopLevel=function(c) NULL),
abort="return to SLIME's toplevel")
dispatch <- function(slimeConnection, event, sldbState=NULL) {
kind <- event[[1]]
if(kind == quote(`:emacs-rex`)) {
do.call("emacsRex", c(list(slimeConnection), list(sldbState), event[-1]))
sendToEmacs <- function(slimeConnection, obj) {
io <- slimeConnection$io
writeChar(sprintf("%06x", nchar(payload, type="bytes")), io, eos=NULL)
writeChar(payload, io, eos=NULL)
flush(io)
}
Christophe Rhodes
committed
callify <- function(form) {
## we implement here the conversion from Lisp S-expression (or list)
## expressions of code into our own, swankr, calling convention,
## with slimeConnection and sldbState as first and second arguments.
## as.call() gets us part of the way, but we need to walk the list
## recursively to mimic CL:EVAL; we need to avoid converting R
## special operators which we are punning (only `quote`, for now)
## into this calling convention.
if(is.list(form)) {
if(form[[1]] == quote(quote)) {
as.call(form)
} else {
as.call(c(list(form[[1]], quote(slimeConnection), quote(sldbState)), lapply(form[-1], callify)))
}
} else {
form
}
}
emacsRex <- function(slimeConnection, sldbState, form, pkg, thread, id, level=0) {
conn <- textConnection(NULL, open="w")
condition <- NULL
Christophe Rhodes
committed
call <- callify(form)
capture.output(value <- eval(call), file=conn)
string <- paste(textConnectionValue(conn), sep="", collapse="\n")
if(nchar(string) > 0) {
sendToEmacs(slimeConnection, list(quote(`:write-string`), string))
sendToEmacs(slimeConnection, list(quote(`:write-string`), "\n"))
}
close(conn)
condition <<- c
string <- paste(textConnectionValue(conn), sep="", collapse="\n")
if(nchar(string) > 0) {
sendToEmacs(slimeConnection, list(quote(`:write-string`), string))
sendToEmacs(slimeConnection, list(quote(`:write-string`), "\n"))
}
close(conn)
newSldbState <- makeSldbState(c, if(is.null(sldbState)) 0 else sldbState$level+1, id)
withRestarts(sldbLoop(slimeConnection, newSldbState, id), abort=paste("return to sldb level", newSldbState$level)) })},
finally=sendToEmacs(slimeConnection, list(quote(`:return`), if(ok) list(quote(`:ok`), value) else list(quote(`:abort`), as.character(condition)), id)))
}
makeSldbState <- function(condition, level, id) {
calls <- rev(sys.calls())[-1]
frames <- rev(sys.frames())[-1]
restarts <- rev(computeRestarts(condition))[-1]
ret <- list(condition=condition, level=level, id=id, restarts=restarts, calls=calls, frames=frames)
class(ret) <- c("sldbState", class(ret))
ret
}
sldbLoop <- function(slimeConnection, sldbState, id) {
io <- slimeConnection$io
sendToEmacs(slimeConnection, c(list(quote(`:debug`), id, sldbState$level), `swank:debugger-info-for-emacs`(slimeConnection, sldbState)))
sendToEmacs(slimeConnection, list(quote(`:debug-activate`), id, sldbState$level, FALSE))
dispatch(slimeConnection, readPacket(io), sldbState)
}, finally=sendToEmacs(slimeConnection, c(list(quote(`:debug-return`), id, sldbState$level, FALSE))))
}
readPacket <- function(io) {
header <- readChunk(io, 6)
len <- strtoi(header, base=16)
payload <- readChunk(io, len)
sexp <- readSexpFromString(payload)
sexp
}
readChunk <- function(io, len) {
buffer <- readChar(io, len, useBytes=TRUE)
if(length(buffer) == 0) {
condition <- simpleCondition("End of file on io")
class(condition) <- c("endOfFile", class(condition))
signalCondition(condition)
}
## FIXME: with the useBytes argument to readChar, it is normal for
## the buffer returned to be fewer character than bytes were read,
## given the possibility of multibyte characters. However, that
## means we can’t detect at all the case where there is actually a
## short read (though empirically the readChar call blocks rather
## than returning early).
##
## if(nchar(buffer) != len) {
## stop("short read in readChunk")
## }
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
buffer
}
readSexpFromString <- function(string) {
pos <- 1
read <- function() {
skipWhitespace()
char <- substr(string, pos, pos)
switch(char,
"("=readList(),
"\""=readString(),
"'"=readQuote(),
{
if(pos > nchar(string))
stop("EOF during read")
obj <- readNumberOrSymbol()
if(obj == quote(`.`)) {
stop("Consing dot not implemented")
}
obj
})
}
skipWhitespace <- function() {
while(substr(string, pos, pos) %in% c(" ", "\t", "\n")) {
pos <<- pos + 1
}
}
readList <- function() {
ret <- list()
pos <<- pos + 1
while(TRUE) {
skipWhitespace()
char <- substr(string, pos, pos)
if(char == ")") {
pos <<- pos + 1
break
} else {
obj <- read()
if(length(obj) == 1 && obj == quote(`.`)) {
stop("Consing dot not implemented")
}
ret <- c(ret, list(obj))
}
}
ret
}
readString <- function() {
ret <- ""
addChar <- function(c) { ret <<- paste(ret, c, sep="") }
while(TRUE) {
pos <<- pos + 1
char <- substr(string, pos, pos)
switch(char,
"\""={ pos <<- pos + 1; break },
"\\"={ pos <<- pos + 1
char2 <- substr(string, pos, pos)
switch(char2,
"\""=addChar(char2),
"\\"=addChar(char2),
stop("Unrecognized escape character")) },
addChar(char))
}
ret
}
readNumberOrSymbol <- function() {
token <- readToken()
if(nchar(token)==0) {
stop("End of file reading token")
} else if(grepl("^[0-9]+$", token)) {
strtoi(token)
} else if(grepl("^[0-9]+\\.[0-9]+$", token)) {
as.double(token)
} else {
name <- as.name(token)
if(name == quote(t)) {
TRUE
} else if(name == quote(nil)) {
FALSE
} else {
name
}
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
}
}
readToken <- function() {
token <- ""
while(TRUE) {
char <- substr(string, pos, pos)
if(char == "") {
break;
} else if(char %in% c(" ", "\n", "\t", "(", ")", "\"", "'")) {
break;
} else {
token <- paste(token, char, sep="")
pos <<- pos + 1
}
}
token
}
read()
}
writeSexpToString <- function(obj) {
writeSexpToStringLoop <- function(obj) {
switch(typeof(obj),
"character"={ string <- paste(string, "\"", gsub("([\"\\])", "\\\\\\1", obj), "\"", sep="") },
"list"={ string <- paste(string, "(", sep="")
max <- length(obj)
if(max > 0) {
for(i in 1:max) {
string <- paste(string, writeSexpToString(obj[[i]]), sep="")
if(i != max) {
string <- paste(string, " ", sep="")
}
}
}
string <- paste(string, ")", sep="") },
"symbol"={ string <- paste(string, as.character(obj), sep="") },
"logical"={ string <- if(obj) { paste(string, "t", sep="") } else { paste(string, "nil", sep="") }},
"double"={ string <- paste(string, as.character(obj), sep="") },
"integer"={ string <- paste(string, as.character(obj), sep="") },
stop(paste("can't write object ", obj, sep="")))
string
}
string <- ""
writeSexpToStringLoop(obj)
}
prin1ToString <- function(val) {
paste(deparse(val, backtick=TRUE, control=c("delayPromises", "keepNA")),
sep="", collapse="\n")
paste(capture.output(print(val)), sep="", collapse="\n")
`swank:connection-info` <- function (slimeConnection, sldbState) {
list(quote(`:pid`), Sys.getpid(),
quote(`:package`), list(quote(`:name`), "R", quote(`:prompt`), "R> "),
quote(`:version`), "2014-09-13",
quote(`:encoding`), list(quote(`:coding-systems`), list("utf-8-unix")),
quote(`:lisp-implementation`), list(quote(`:type`), "R",
quote(`:name`), "R",
quote(`:version`), paste(R.version$major, R.version$minor, sep=".")))
}
`swank:swank-require` <- function (slimeConnection, sldbState, contribs) {
for(contrib in contribs) {
filename <- sprintf("%s/%s.R", swankrPath, as.character(contrib))
if(file.exists(filename)) {
`swank:create-repl` <- function(slimeConnection, sldbState, env, ...) {
`swank-repl:create-repl` <- `swank:create-repl`
string <- printToString(value)
quote(`:repl-result`))
}
makeReplResultFunction <- makeReplResult
sendReplResult <- function(slimeConnection, value) {
result <- makeReplResultFunction(value)
sendToEmacs(slimeConnection, result)
}
sendReplResultFunction <- sendReplResult
`swank:listener-eval` <- function(slimeConnection, sldbState, string) {
string <- gsub("#\\.\\(swank:lookup-presented-object-or-lose([^)]*)\\)", ".(`swank:lookup-presented-object-or-lose`(slimeConnection, sldbState,\\1))", string)
for(expr in parse(text=string)) {
expr <- expr
## O maybe this is even uglier
lookedup <- do.call("bquote", list(expr))
tmp <- withVisible(eval(lookedup, envir = globalenv()))
if(tmp$visible) {
sendReplResultFunction(slimeConnection, tmp$value)
}
`swank-repl:listener-eval` <- `swank:listener-eval`
`swank:clear-repl-variables` <- function(slimeConnection, sldbState) {
list()
}
`swank:autodoc` <- function(slimeConnection, sldbState, rawForm, ...) {
list("No Arglist Information", TRUE)
`swank:operator-arglist` <- function(slimeConnection, sldbState, op, package) {
if(!exists(op, envir = globalenv())) {
return(list())
}
funoid <- get(op, envir = globalenv())
if(is.function(funoid)) {
args <- formals(funoid)
paste(sprintf("%s=%s", names(args), args), collapse=", ")
} else {
list()
}
`swank:describe-function` <- function(slimeConnection, sldbState, op, package) {
## FIXME: maybe not the best match?
`swank:operator-arglist`(slimeConnection, sldbState, op, package)
}
helpFilesWithTopicString <- function(value) {
output <- capture.output(tools:::Rd2txt(utils:::.getHelpFile(value),
options=list(underline_titles=FALSE)))
paste(output, collapse="\n")
}
`swank:describe-symbol` <- function(slimeConnection, sldbState, op, package) {
value <- help(op)
helpFilesWithTopicString(value)
}
`swank:apropos-list-for-emacs` <- function(slimeConnection, sldbState, name, onlyExternal, package, caseSensitive) {
x <- help.search(name, fields="alias", package=.packages())$matches
brieflyDescribe <- function(name, title) {
if (exists(name, globalenv())) {
val <- get(name, globalenv())
kind <- if("function" %in% class(val)) quote(`:function`) else quote(`:variable`)
list(quote(`:designator`), name, kind, title)
} else {
## maybe
list(quote(`:designator`), name, quote(`:type`), title)
}
}
mapply(brieflyDescribe, x[,"name"], x[,"title"], SIMPLIFY=FALSE)
}
`swank:describe-definition-for-emacs` <- function(slimeConnection, sldbState, name, kind) {
`swank:describe-symbol`(slimeConnection, sldbState, name, NULL)
}
`swank:throw-to-toplevel` <- function(slimeConnection, sldbState) {
condition <- simpleCondition("Throw to toplevel")
class(condition) <- c("swankTopLevel", class(condition))
signalCondition(condition)
}
`swank:backtrace` <- function(slimeConnection, sldbState, from=0, to=NULL) {
calls <- sldbState$calls
if(is.null(to)) to <- length(calls)
from <- from+1
calls <- lapply(calls[from:to],
{ frameNumber <- from-1;
function (x) {
ret <- list(frameNumber, paste(format(x), sep="", collapse=" "))
frameNumber <<- 1+frameNumber
ret
}
})
}
computeRestartsForEmacs <- function (sldbState) {
lapply(sldbState$restarts,
function(x) {
## this is all a little bit internalsy
restartName <- x[[1]][[1]]
description <- restartDescription(x)
list(restartName, if(is.null(description)) restartName else description)
})
}
`swank:debugger-info-for-emacs` <- function(slimeConnection, sldbState, from=0, to=NULL) {
list(list(as.character(sldbState$condition), sprintf(" [%s]", class(sldbState$condition)[[1]]), FALSE),
computeRestartsForEmacs(sldbState),
`swank:backtrace`(slimeConnection, sldbState, from, to),
list(sldbState$id))
`swank:invoke-nth-restart-for-emacs` <- function(slimeConnection, sldbState, level, n) {
invokeRestart(sldbState$restarts[[n+1]])
`swank:frame-source-location` <- function(slimeConnection, sldbState, n) {
call <- sldbState$calls[[n+1]]
srcref <- attr(call, "srcref")
srcfile <- attr(srcref, "srcfile")
if(is.null(srcfile)) {
list(quote(`:error`), "no srcfile")
} else {
filename <- get("filename", srcfile)
## KLUDGE: what this means is "is the srcfile filename
## absolute?"
if(substr(filename, 1, 1) == "/") {
file <- filename
} else {
file <- sprintf("%s/%s", srcfile$wd, filename)
}
list(quote(`:file`), file),
list(quote(`:line`), srcref[[1]], srcref[[2]]-1),
FALSE)
}
}
`swank:buffer-first-change` <- function(slimeConnection, sldbState, filename) {
`swank:eval-string-in-frame` <- function(slimeConnection, sldbState, string, index) {
frame <- sldbState$frames[[1+index]]
withRetryRestart("retry SLIME interactive evaluation request",
value <- eval(parse(text=string), envir=frame))
printToString(value)
}
`swank:frame-locals-and-catch-tags` <- function(slimeConnection, sldbState, index) {
frame <- sldbState$frames[[1+index]]
objs <- ls(envir=frame)
if(identical(frame, globalenv())) {
objs <- c()
}
list(lapply(objs, function(name) { list(quote(`:name`), name,
quote(`:id`), 0,
quote(`:value`),
tryCatch({
printToString(eval(parse(text=name), envir=frame))
}, error=function(c) {
sprintf("error printing object")
}))}),
symbolFieldsCompletion <- function(object, prefix, rest) {
## FIXME: this is hacky, ignoring several syntax issues (use of
## and/or necessity for backquoting identifiers: e.g. fields
## containing hyphens)
if((dollar <- regexpr("$", rest, fixed=TRUE)) == -1) {
matches <- grep(sprintf("^%s", literal2rx(rest)), names(object), value=TRUE)
matches <- sprintf("%s$%s", gsub("\\$[^$]*$", "", prefix), matches)
returnMatches(matches)
} else {
if(exists(substr(rest, 1, dollar-1), object)) {
symbolFieldsCompletion(get(substr(rest, 1, dollar-1), object), prefix, substr(rest, dollar+1, nchar(rest)))
}
returnMatches <- function(matches) {
nmatches <- length(matches)
if(nmatches == 0) {
list(list(), "")
} else {
longest <- matches[order(nchar(matches))][1]
while(length(grep(sprintf("^%s", literal2rx(longest)), matches)) < nmatches) {
longest <- substr(longest, 1, nchar(longest)-1)
}
literal2rx <- function(string) {
## list of ERE metacharacters from ?regexp
gsub("([.\\|()[{^$*+?])", "\\\\\\1", string)
}
`swank:simple-completions` <- function(slimeConnection, sldbState, prefix, package) {
matches <- apropos(sprintf("^%s", literal2rx(prefix)), ignore.case=FALSE)
if((nmatches == 0) && ((dollar <- regexpr("$", prefix, fixed=TRUE)) > -1)) {
symbolFieldsCompletion(globalenv(), prefix, prefix)
`swank:compile-string-for-emacs` <- function(slimeConnection, sldbState, string, buffer, position, filename, policy) {
lineOffset <- charOffset <- colOffset <- NULL
for(pos in position) {
switch(as.character(pos[[1]]),
`:position` = {charOffset <- pos[[2]]},
`:line` = {lineOffset <- pos[[2]]; colOffset <- pos[[3]]},
warning("unknown content in pos", pos))
}
frob <- function(refs) {
lapply(refs,
function(x)
srcref(attr(x,"srcfile"),
c(x[1]+lineOffset-1, ifelse(x[1]==1, x[2]+colOffset-1, x[2]),
x[3]+lineOffset-1, ifelse(x[3]==1, x[4]+colOffset-1, x[4]),
ifelse(x[1]==1, x[5]+colOffset-1, x[5]),
ifelse(x[3]==1, x[6]+colOffset-1, x[6]))))
}
transformSrcrefs <- function(s) {
## horrendous KLUDGE: we need to short-circuit here for "name"
## objects, rather than having a nice uniform behaviour, because
## for expressions of the form x[y,] there is an empty "name"
## which ends up becoming a `missing' object when passed through
## the switch; why, I do not know, but it is then impossible to
## return it, because returning it attempts to evaluate it and
## evaluating it is an error. Fortunately it appears that names
## don't have srcrefs attached.
if(mode(s) == "name") {
return(s)
}
if(is(s, "srcref")) {
## more monumental KLUDGE: parsing (in 2.14, at least) appears
## to put srcrefs directly in `length 2' objects, which we need
## to frob directly.
return(frob(list(s))[[1]])
}
srcrefs <- attr(s, "srcref")
attribs <- attributes(s)
new <-
switch(mode(s),
"call"=as.call(lapply(s, transformSrcrefs)),
"expression"=as.expression(lapply(s, transformSrcrefs)),
s)
attributes(new) <- attribs
if(!is.null(attr(s, "srcref"))) {
attr(new, "srcref") <- frob(srcrefs)
}
if(!is.null(attr(s, "wholeSrcref"))) {
attr(new, "wholeSrcref") <- frob(list(attr(s, "wholeSrcref")))[[1]]
}
new
}
withRestarts({
times <- system.time({
exprs <- parse(text=string, srcfile=srcfile(filename))
eval(transformSrcrefs(exprs), envir = globalenv()) })},
list(quote(`:compilation-result`), list(), TRUE, times[3], FALSE, FALSE)
withRetryRestart <- function(description, expr) {
call <- substitute(expr)
retry <- TRUE
while(retry) {
retry <- FALSE
withRestarts(eval.parent(call),
retry=list(description=description,
handler=function() retry <<- TRUE))
}
`swank:interactive-eval` <- function(slimeConnection, sldbState, string) {
withRetryRestart("retry SLIME interactive evaluation request",
tmp <- withVisible(eval(parse(text=string), envir=globalenv())))
if(tmp$visible) {
prin1ToString(tmp$value)
} else {
"# invisible value"
}
}
`swank:eval-and-grab-output` <- function(slimeConnection, sldbState, string) {
withRetryRestart("retry SLIME interactive evaluation request",
{ output <-
capture.output(tmp <- withVisible(eval(parse(text=string),
envir=globalenv()))) })
output <- paste(output, sep="", collapse="\n")
list(output, prin1ToString(tmp$value))
} else {
list(output, "# invisible value")
}
`swank:interactive-eval-region` <- function(slimeConnection, sldbState, string) {
withRetryRestart("retry SLIME interactive evaluation request",
tmp <- withVisible(eval(parse(text=string), envir=globalenv())))
if(tmp$visible) {
prin1ToString(tmp$value)
} else {
"# invisible value"
}
`swank:find-definitions-for-emacs` <- function(slimeConnection, sldbState, string) {
if(exists(string, envir = globalenv())) {
thing <- get(string, envir = globalenv())
if(inherits(thing, "function")) {
body <- body(thing)
srcref <- attr(body, "srcref")
srcfile <- attr(body, "srcfile")
if(is.null(srcfile)) {
list()
} else {
filename <- get("filename", srcfile)
## KLUDGE: what this means is "is the srcfile filename
## absolute?"
if(substr(filename, 1, 1) == "/") {
file <- filename
} else {
file <- sprintf("%s/%s", srcfile$wd, filename)
}
list(list(sprintf("function %s", string),
list(quote(`:location`),
list(quote(`:line`), srcref[[2]][[1]], srcref[[2]][[2]]-1),
list())))
}
} else {
list()
}
} else {
list()
}
}
`swank:value-for-editing` <- function(slimeConnection, sldbState, string) {
paste(deparse(eval(parse(text=string), envir = globalenv()), control="all"),
collapse="\n", sep="")
}
`swank:commit-edited-value` <- function(slimeConnection, sldbState, string, value) {
eval(parse(text=sprintf("%s <- %s", string, value)), envir = globalenv())
TRUE
}
resetInspector <- function(slimeConnection) {
assign("istate", list(), envir=slimeConnection)
assign("inspectorHistory", NULL, envir=slimeConnection)
}
`swank:init-inspector` <- function(slimeConnection, sldbState, string) {
withRetryRestart("retry SLIME inspection request",
{ resetInspector(slimeConnection)
value <- inspectObject(slimeConnection, eval(parse(text=string), envir=globalenv()))
})
value
}
inspectObject <- function(slimeConnection, object) {
vectorify <- function(x) {
if(is.vector(x)) {
x
} else {
list(x)
}
}
previous <- slimeConnection$istate
slimeConnection$istate <- new.env()
slimeConnection$istate$object <- object
slimeConnection$istate$previous <- previous
slimeConnection$istate$content <- emacsInspect(object)
if(!(vectorify(object) %in% slimeConnection$inspectorHistory)) {
slimeConnection$inspectorHistory <- c(slimeConnection$inspectorHistory, object)
}
if(!is.null(slimeConnection$istate$previous)) {
slimeConnection$istate$previous$`next` <- slimeConnection$istate
}
istateToElisp(slimeConnection$istate)
}
valuePart <- function(istate, object, string) {
list(quote(`:value`),
if(is.null(string)) prin1ToString(object) else string,
assignIndexInParts(object, istate))
}
preparePart <- function(istate, part) {
if(is.character(part)) {
list(part)
} else {
switch(as.character(part[[1]]),
`:newline` = list("\n"),
`:value` = valuePart(istate, part[[2]], part[[3]]),
`:line` = list(prin1ToString(part[[2]]), ": ",
valuePart(istate, part[[3]], NULL), "\n"))
}
}
prepareRange <- function(istate, start, end) {
range <- istate$content[start+1:min(end+1, length(istate$content))]
ps <- NULL
for(part in range) {
ps <- c(ps, preparePart(istate, part))
}
list(ps, if(length(ps)<end-start) { start+length(ps) } else { end+1000 },
start, end)
}
assignIndexInParts <- function(object, istate) {
ret <- 1+length(istate$parts)
istate$parts <- c(istate$parts, list(object))
ret
}
istateToElisp <- function(istate) {
list(quote(`:title`), deparse(istate$object, control="all", nlines=1),
quote(`:id`), assignIndexInParts(istate$object, istate),
quote(`:content`), prepareRange(istate, 0, 500))
}
emacsInspect <- function(object) {
UseMethod("emacsInspect")
}
emacsInspect.default <- function(thing) {
c(list(paste("a ", class(thing)[[1]], sep=""), list(quote(`:newline`))))
}
emacsInspect.list <- function(list) {
c(list("a list", list(quote(`:newline`))),
mapply(function(name, value) { list(list(quote(`:line`), name, value)) },
names(list), list))
}
emacsInspect.numeric <- function(numeric) {
c(list("a numeric", list(quote(`:newline`))),
mapply(function(name, value) { list(list(quote(`:line`), name, value)) },
(1:length(numeric)), numeric))
}
`swank:quit-inspector` <- function(slimeConnection, sldbState) {
resetInspector(slimeConnection)
FALSE
}
`swank:inspector-nth-part` <- function(slimeConnection, sldbState, index) {
slimeConnection$istate$parts[[index]]
}
`swank:inspect-nth-part` <- function(slimeConnection, sldbState, index) {
object <- `swank:inspector-nth-part`(slimeConnection, sldbState, index)
inspectObject(slimeConnection, object)
}
`swank:inspector-pop` <- function(slimeConnection, sldbState) {
if(!is.null(slimeConnection$istate$previous)) {
slimeConnection$istate <- slimeConnection$istate$previous
istateToElisp(slimeConnection$istate)
} else {
FALSE
}
}
`swank:inspector-next` <- function(slimeConnection, sldbState) {
if(!is.null(slimeConnection$istate$`next`)) {
slimeConnection$istate <- slimeConnection$istate$`next`
istateToElisp(slimeConnection$istate)
} else {
FALSE
}
}
`swank:inspector-eval` <- function(slimeConnection, sldbState, string) {
expr <- parse(text=string)[[1]]
object <- slimeConnection$istate$object
if(inherits(object, "list")|inherits(object, "environment")) {
substituted <- substituteDirect(expr, object)
eval(substituted, envir=globalenv())
} else {
eval(expr, envir=globalenv())
}
}
`swank:inspect-current-condition` <- function(slimeConnection, sldbState) {
resetInspector(slimeConnection)
inspectObject(slimeConnection, sldbState$condition)
}
`swank:inspect-frame-var` <- function(slimeConnection, sldbState, frame, var) {
resetInspector(slimeConnection)
frame <- sldbState$frames[[1+frame]]
name <- ls(envir=frame)[[1+var]]
object <- get(name, envir=frame)
inspectObject(slimeConnection, object)
}
`swank:default-directory` <- function(slimeConnection, sldbState) {
getwd()
}
`swank:set-default-directory` <- function(slimeConnection, sldbState, directory) {
setwd(directory)
`swank:default-directory`(slimeConnection, sldbState)
}
`swank:load-file` <- function(slimeConnection, sldbState, filename) {
source(filename, local=FALSE, keep.source=TRUE)
TRUE
}
`swank:compile-file-for-emacs` <- function(slimeConnection, sldbState, filename, loadp, ...) {
times <- system.time(parse(filename, srcfile=srcfile(filename)))
if(loadp) {
## KLUDGE: inelegant, but works. It might be more in the spirit
## of things to keep the result of the parse above around to
## evaluate.
`swank:load-file`(slimeConnection, sldbState, filename)
}
list(quote(`:compilation-result`), list(), TRUE, times[3], substitute(loadp), filename)
`swank:quit-lisp` <- function(slimeConnection, sldbState) {
quit()
}