X-Git-Url: http://christophe.rhodes.io/gitweb/?p=swankr.git;a=blobdiff_plain;f=swank.R;h=dea28cf99f2f72cec6ccadc13d1266b88b571c78;hp=3ab65ee02f1228d8b2c3423b41d33647f0fe4457;hb=a46793d3e275c91add4a5235bf1d812668714629;hpb=8d84cee073ab58c2c858a6aac994a4f88d91ddb4 diff --git a/swank.R b/swank.R index 3ab65ee..dea28cf 100644 --- a/swank.R +++ b/swank.R @@ -13,15 +13,26 @@ ### latest version of the GNU General Public Licence is available at ### . +### 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(FALSE, portFile) + acceptConnections(4005, portFile) } acceptConnections <- function(port, portFile) { + if(portFile != FALSE) { + f <- file(portFile, open="w+") + cat(port, file=f) + close(f) + } s <- socketConnection(host="localhost", server=TRUE, port=port, open="r+b") on.exit(close(s)) serve(s) @@ -42,7 +53,6 @@ mainLoop <- function(io) { } dispatch <- function(slimeConnection, event, sldbState=NULL) { - str(event) kind <- event[[1]] if(kind == quote(`:emacs-rex`)) { do.call("emacsRex", c(list(slimeConnection), list(sldbState), event[-1])) @@ -51,12 +61,10 @@ dispatch <- function(slimeConnection, event, sldbState=NULL) { sendToEmacs <- function(slimeConnection, obj) { io <- slimeConnection$io - str(obj) payload <- writeSexpToString(obj) - writeChar(sprintf("%06x", nchar(payload)), io, eos=NULL) + writeChar(sprintf("%06x", nchar(payload, type="bytes")), io, eos=NULL) writeChar(payload, io, eos=NULL) flush(io) - cat(sprintf("%06x", nchar(payload)), payload, sep="") } callify <- function(form) { @@ -81,15 +89,30 @@ callify <- function(form) { emacsRex <- function(slimeConnection, sldbState, form, pkg, thread, id, level=0) { ok <- FALSE value <- NULL + conn <- textConnection(NULL, open="w") + condition <- NULL tryCatch({ withCallingHandlers({ call <- callify(form) - value <- eval(call) + capture.output(value <- eval(call), file=conn) + string <- paste(textConnectionValue(conn), sep="", collapse="\n") + if(nchar(string) > 0) { + sendToEmacs(slimeConnection, list(quote(`:write-string`), string)) + sendToEmacs(slimeConnection, list(quote(`:write-string`), "\n")) + } + close(conn) ok <- TRUE }, error=function(c) { + condition <<- c + string <- paste(textConnectionValue(conn), sep="", collapse="\n") + if(nchar(string) > 0) { + sendToEmacs(slimeConnection, list(quote(`:write-string`), string)) + sendToEmacs(slimeConnection, list(quote(`:write-string`), "\n")) + } + close(conn) newSldbState <- makeSldbState(c, if(is.null(sldbState)) 0 else sldbState$level+1, id) withRestarts(sldbLoop(slimeConnection, newSldbState, id), abort=paste("return to sldb level", newSldbState$level)) })}, - finally=sendToEmacs(slimeConnection, list(quote(`:return`), if(ok) list(quote(`:ok`), value) else list(quote(`:abort`)), id))) + finally=sendToEmacs(slimeConnection, list(quote(`:return`), if(ok) list(quote(`:ok`), value) else list(quote(`:abort`), as.character(condition)), id))) } makeSldbState <- function(condition, level, id) { @@ -198,7 +221,14 @@ readSexpFromString <- function(string) { } else if(grepl("^[0-9]+\\.[0-9]+$", token)) { as.double(token) } else { - as.name(token) + name <- as.name(token) + if(name == quote(t)) { + TRUE + } else if(name == quote(nil)) { + FALSE + } else { + name + } } } readToken <- function() { @@ -245,22 +275,19 @@ writeSexpToString <- function(obj) { writeSexpToStringLoop(obj) } -withOutputToString <- function(expr) { - call <- substitute(expr) - f <- fifo("") - sink(f) - tryCatch({ tryCatch(eval.parent(call), finally=sink()) - readLines(f) }, - finally=close(f)) +prin1ToString <- function(val) { + paste(deparse(val, backtick=TRUE, control=c("delayPromises", "keepNA")), + sep="", collapse="\n") } printToString <- function(val) { - withOutputToString(str(val, indent.str="", list.len=5, max.level=2)) + 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(`: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="."))) @@ -268,9 +295,9 @@ printToString <- function(val) { `swank:swank-require` <- function (slimeConnection, sldbState, contribs) { for(contrib in contribs) { - filename <- sprintf("%s.R", as.character(contrib)) + filename <- sprintf("%s/%s.R", swankrPath, as.character(contrib)) if(file.exists(filename)) { - source(filename, verbose=TRUE) + source(filename) } } list() @@ -280,22 +307,33 @@ printToString <- function(val) { list("R", "R") } -sendReplResult <- function(slimeConnection, value) { +makeReplResult <- function(value) { string <- printToString(value) - sendToEmacs(slimeConnection, - list(quote(`:write-string`), - paste(string, collapse="\n"), - quote(`:repl-result`))) + list(quote(`:write-string`), string, + quote(`:repl-result`)) +} + +makeReplResultFunction <- makeReplResult + +sendReplResult <- function(slimeConnection, value) { + result <- makeReplResultFunction(value) + sendToEmacs(slimeConnection, result) } sendReplResultFunction <- sendReplResult `swank:listener-eval` <- function(slimeConnection, sldbState, string) { + ## O how ugly string <- gsub("#\\.\\(swank:lookup-presented-object-or-lose([^)]*)\\)", ".(`swank:lookup-presented-object-or-lose`(slimeConnection, sldbState,\\1))", string) - expr <- parse(text=string)[[1]] - lookedup <- do.call("bquote", list(expr)) - value <- eval(lookedup, envir = globalenv()) - sendReplResultFunction(slimeConnection, value) + 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) + } + } list() } @@ -357,8 +395,16 @@ computeRestartsForEmacs <- function (sldbState) { 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$wd, filename) + } list(quote(`:location`), - list(quote(`:file`), sprintf("%s/%s", srcfile$wd, srcfile$filename)), + list(quote(`:file`), file), list(quote(`:line`), srcref[[1]], srcref[[2]]-1), FALSE) } @@ -368,25 +414,42 @@ computeRestartsForEmacs <- function (sldbState) { FALSE } +`swank:eval-string-in-frame` <- function(slimeConnection, sldbState, string, index) { + frame <- sldbState$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) { - str(sldbState$frames) frame <- sldbState$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`), paste(printToString(eval(parse(text=name), envir=frame)), sep="", collapse="\n")) }), + quote(`:value`), + tryCatch({ + printToString(eval(parse(text=name), envir=frame)) + }, error=function(c) { + sprintf("error printing object") + }))}), list()) } `swank:simple-completions` <- function(slimeConnection, sldbState, prefix, package) { - ## fails multiply if prefix contains regexp metacharacters - matches <- apropos(sprintf("^%s", prefix), ignore.case=FALSE) + literal2rx <- function(string) { + ## list of ERE metacharacters from ?regexp + gsub("([.\\|()[{^$*+?])", "\\\\\\1", string) + } + matches <- apropos(sprintf("^%s", literal2rx(prefix)), ignore.case=FALSE) nmatches <- length(matches) if(nmatches == 0) { list(list(), "") } else { longest <- matches[order(nchar(matches))][1] - while(length(grep(sprintf("^%s", longest), matches)) < nmatches) { + while(length(grep(sprintf("^%s", literal2rx(longest)), matches)) < nmatches) { longest <- substr(longest, 1, nchar(longest)-1) } list(as.list(matches), longest) @@ -394,11 +457,42 @@ computeRestartsForEmacs <- function (sldbState) { } `swank:compile-string-for-emacs` <- function(slimeConnection, sldbState, string, buffer, position, filename, policy) { - # FIXME: I think in parse() here we can use srcref to associate - # buffer/filename/position to the objects. Or something. - withRestarts({ times <- system.time(eval(parse(text=string), envir = globalenv())) }, + 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) { + 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) + } + new + } + withRestarts({ + times <- system.time({ + exprs <- parse(text=string, srcfile=srcfile(filename)) + eval(transformSrcrefs(exprs), envir = globalenv()) })}, abort="abort compilation") - list(quote(`:compilation-result`), list(), TRUE, times[3]) + list(quote(`:compilation-result`), list(), TRUE, times[3], FALSE, FALSE) } withRetryRestart <- function(description, expr) { @@ -414,16 +508,35 @@ withRetryRestart <- function(description, expr) { `swank:interactive-eval` <- function(slimeConnection, sldbState, string) { withRetryRestart("retry SLIME interactive evaluation request", - value <- eval(parse(text=string), envir=globalenv())) - printToString(value) + tmp <- withVisible(eval(parse(text=string), envir=globalenv()))) + if(tmp$visible) { + prin1ToString(tmp$value) + } else { + "# invisible value" + } } `swank:eval-and-grab-output` <- function(slimeConnection, sldbState, string) { withRetryRestart("retry SLIME interactive evaluation request", { output <- - withOutputToString(value <- eval(parse(text=string), - envir=globalenv())) }) - list(output, printToString(value)) + capture.output(tmp <- withVisible(eval(parse(text=string), + envir=globalenv()))) }) + output <- paste(output, sep="", collapse="\n") + if(tmp$visible) { + 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$value) + } else { + "# invisible value" + } } `swank:find-definitions-for-emacs` <- function(slimeConnection, sldbState, string) { @@ -437,9 +550,16 @@ withRetryRestart <- function(description, expr) { list() } else { filename <- get("filename", srcfile) + ## KLUDGE: what this means is "is the srcfile filename + ## absolute?" + if(substr(filename, 1, 1) == "/") { + file <- filename + } else { + file <- sprintf("%s/%s", srcfile$wd, filename) + } list(list(sprintf("function %s", string), list(quote(`:location`), - list(quote(`:file`), sprintf("%s/%s", srcfile$wd, srcfile$filename)), + list(quote(`:file`), file), list(quote(`:line`), srcref[[2]][[1]], srcref[[2]][[2]]-1), list()))) } @@ -491,7 +611,7 @@ inspectObject <- function(slimeConnection, object) { valuePart <- function(istate, object, string) { list(quote(`:value`), - if(is.null(string)) paste(printToString(object),collapse=" ") else string, + if(is.null(string)) printToString(object) else string, assignIndexInParts(object, istate)) } @@ -533,6 +653,10 @@ 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)) }, @@ -587,3 +711,45 @@ emacsInspect.numeric <- function(numeric) { 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() +}