From: Christophe Rhodes <csr21@cantab.net>
Date: Tue, 24 Apr 2012 12:38:09 +0000 (+0100)
Subject: implement `swank:operator-arglist` properly
X-Git-Url: http://christophe.rhodes.io/gitweb/?p=swankr.git;a=commitdiff_plain;h=f26811f35b41594dbbc6c6c53b0d09fd819c152d

implement `swank:operator-arglist` properly

Now that slime-operator-at-point is overrideable, I can even test this
from within Emacs -- but thanks to Philipp Marek for implementing this
in his SLIMV-based environment first.
---

diff --git a/swank.R b/swank.R
index d91c35f..49f73ff 100644
--- a/swank.R
+++ b/swank.R
@@ -348,7 +348,16 @@ sendReplResultFunction <- sendReplResult
 }
 
 `swank:operator-arglist` <- function(slimeConnection, sldbState, op, package) {
-  list()
+  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:throw-to-toplevel` <- function(slimeConnection, sldbState) {