609 lines
20 KiB
Clojure
609 lines
20 KiB
Clojure
(ns swank.commands.basic
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(:refer-clojure :exclude [load-file print-doc])
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(:use (swank util commands core)
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(swank.util.concurrent thread)
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(swank.util string clojure)
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(swank.clj-contrib pprint macroexpand))
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(:require (swank.util [sys :as sys])
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(swank.commands [xref :as xref]))
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(:import (java.io StringReader File)
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(java.util.zip ZipFile)
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(clojure.lang LineNumberingPushbackReader)))
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;;;; Connection
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(defslimefn connection-info []
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`(:pid ~(sys/get-pid)
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:style :spawn
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:lisp-implementation (:type "Clojure"
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:name "clojure"
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:version ~(clojure-version))
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:package (:name ~(name (ns-name *ns*))
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:prompt ~(name (ns-name *ns*)))
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:version ~(deref protocol-version)))
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(defslimefn quit-lisp []
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(System/exit 0))
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(defslimefn toggle-debug-on-swank-error []
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(alter-var-root #'swank.core/debug-swank-clojure not))
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;;;; Evaluation
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(defn- eval-region
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"Evaluate string, return the results of the last form as a list and
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a secondary value the last form."
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([string]
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(eval-region string "NO_SOURCE_FILE" 1))
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([string file line]
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(with-open [rdr (proxy [LineNumberingPushbackReader]
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((StringReader. string))
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(getLineNumber [] line))]
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(binding [*file* file]
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(loop [form (read rdr false rdr), value nil, last-form nil]
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(if (= form rdr)
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[value last-form]
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(recur (read rdr false rdr)
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(eval (with-env-locals form))
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form)))))))
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(defn- compile-region
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"Compile region."
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([string file line]
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(with-open [rdr1 (proxy [LineNumberingPushbackReader]
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((StringReader. string)))
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rdr (proxy [LineNumberingPushbackReader] (rdr1)
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(getLineNumber [] (+ line (.getLineNumber rdr1) -1)))]
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(clojure.lang.Compiler/load rdr file (.getName (File. file))))))
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(defslimefn interactive-eval-region [string]
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(with-emacs-package
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(pr-str (first (eval-region string)))))
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(defslimefn interactive-eval [string]
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(with-emacs-package
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(pr-str (first (eval-region string)))))
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(defslimefn listener-eval [form]
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(with-emacs-package
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(with-package-tracking
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(let [[value last-form] (eval-region form)]
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(when (and last-form (not (one-of? last-form '*1 '*2 '*3 '*e)))
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(set! *3 *2)
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(set! *2 *1)
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(set! *1 value))
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(send-repl-results-to-emacs value)))))
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(defslimefn eval-and-grab-output [string]
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(with-emacs-package
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(let [retval (promise)]
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(list (with-out-str
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(deliver retval (pr-str (first (eval-region string)))))
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@retval))))
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(defslimefn pprint-eval [string]
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(with-emacs-package
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(pretty-pr-code (first (eval-region string)))))
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;;;; Macro expansion
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(defn- apply-macro-expander [expander string]
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(pretty-pr-code (expander (read-string string))))
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(defslimefn swank-macroexpand-1 [string]
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(apply-macro-expander macroexpand-1 string))
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(defslimefn swank-macroexpand [string]
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(apply-macro-expander macroexpand string))
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;; not implemented yet, needs walker
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(defslimefn swank-macroexpand-all [string]
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(apply-macro-expander macroexpand-all string))
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;;;; Compiler / Execution
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(def compiler-exception-location-re #"Exception:.*\(([^:]+):([0-9]+)(:[0-9]+)?\)")
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(defn- guess-compiler-exception-location [#^Throwable t]
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(when (instance? clojure.lang.Compiler$CompilerException t)
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(let [[match file line] (re-find compiler-exception-location-re (str t))]
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(when (and file line)
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`(:location (:file ~file) (:line ~(Integer/parseInt line)) nil)))))
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;; TODO: Make more and better guesses
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(defn- exception-location [#^Throwable t]
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(or (guess-compiler-exception-location t)
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'(:error "No error location available")))
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;; plist of message, severity, location, references, short-message
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(defn- exception-to-message [#^Throwable t]
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`(:message ~(.toString t)
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:severity :error
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:location ~(exception-location t)
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:references nil
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:short-message ~(.toString t)))
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(defn- compile-file-for-emacs*
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"Compiles a file for emacs. Because clojure doesn't compile, this is
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simple an alias for load file w/ timing and messages. This function
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is to reply with the following:
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(:swank-compilation-unit notes results durations)"
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([file-name]
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(let [start (System/nanoTime)]
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(try
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(let [ret (clojure.core/load-file file-name)
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delta (- (System/nanoTime) start)]
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`(:compilation-result nil ~(pr-str ret) ~(/ delta 1000000000.0)))
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(catch Throwable t
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(let [delta (- (System/nanoTime) start)
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causes (exception-causes t)
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num (count causes)]
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(.printStackTrace t) ;; prints to *inferior-lisp*
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`(:compilation-result
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~(map exception-to-message causes) ;; notes
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nil ;; results
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~(/ delta 1000000000.0) ;; durations
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)))))))
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(defslimefn compile-file-for-emacs
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([file-name load? & compile-options]
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(when load?
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(compile-file-for-emacs* file-name))))
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(defslimefn load-file [file-name]
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(let [libs-ref @(resolve 'clojure.core/*loaded-libs*)
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libs @libs-ref]
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(try
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(dosync (ref-set libs-ref #{}))
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(pr-str (clojure.core/load-file file-name))
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(finally
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(dosync (alter libs-ref into libs))))))
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(defn- line-at-position [file position]
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(try
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(with-open [f (java.io.LineNumberReader. (java.io.FileReader. file))]
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(.skip f position)
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(.getLineNumber f))
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(catch Exception e 1)))
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(defmacro compiler-exception [directory line ex]
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`(eval (if (>= (:minor *clojure-version*) 5)
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'(clojure.lang.Compiler$CompilerException.
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~directory ~line 0 ~ex)
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'(clojure.lang.Compiler$CompilerException.
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~directory ~line ~ex))))
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(defslimefn compile-string-for-emacs [string buffer position directory debug]
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(let [start (System/nanoTime)
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line (line-at-position directory position)
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ret (with-emacs-package
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(when-not (= (name (ns-name *ns*)) *current-package*)
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(throw (compiler-exception
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directory line
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(Exception. (str "No such namespace: "
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*current-package*)))))
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(compile-region string directory line))
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delta (- (System/nanoTime) start)]
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`(:compilation-result nil ~(pr-str ret) ~(/ delta 1000000000.0))))
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;;;; Describe
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(defn- maybe-resolve-sym [symbol-name]
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(try
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(ns-resolve (maybe-ns *current-package*) (symbol symbol-name))
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(catch ClassNotFoundException e nil)))
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(defn- maybe-resolve-ns [sym-name]
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(let [sym (symbol sym-name)]
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(or ((ns-aliases (maybe-ns *current-package*)) sym)
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(find-ns sym))))
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(defn- print-doc* [m]
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(println "-------------------------")
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(println (str (when-let [ns (:ns m)] (str (ns-name ns) "/")) (:name m)))
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(cond
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(:forms m) (doseq [f (:forms m)]
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(print " ")
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(prn f))
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(:arglists m) (prn (:arglists m)))
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(if (:special-form m)
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(do
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(println "Special Form")
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(println " " (:doc m))
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(if (contains? m :url)
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(when (:url m)
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(println (str "\n Please see http://clojure.org/" (:url m))))
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(println (str "\n Please see http://clojure.org/special_forms#"
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(:name m)))))
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(do
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(when (:macro m)
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(println "Macro"))
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(println " " (:doc m)))))
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(def print-doc (let [print-doc (resolve 'clojure.core/print-doc)]
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(if (or (nil? print-doc) (-> print-doc meta :private))
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(comp print-doc* meta)
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print-doc)))
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(defn- describe-to-string [var]
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(with-out-str
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(print-doc var)))
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(defn- describe-symbol* [symbol-name]
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(with-emacs-package
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(if-let [v (maybe-resolve-sym symbol-name)]
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(if-not (class? v)
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(describe-to-string v)))))
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(defslimefn describe-symbol [symbol-name]
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(describe-symbol* symbol-name))
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(defslimefn describe-function [symbol-name]
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(describe-symbol* symbol-name))
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;; Only one namespace... so no kinds
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(defslimefn describe-definition-for-emacs [name kind]
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(describe-symbol* name))
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;; Only one namespace... so only describe symbol
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(defslimefn documentation-symbol
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([symbol-name default] (documentation-symbol symbol-name))
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([symbol-name] (describe-symbol* symbol-name)))
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;;;; Documentation
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(defn- briefly-describe-symbol-for-emacs [var]
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(let [lines (fn [s] (.split #^String s (System/getProperty "line.separator")))
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[_ symbol-name arglists d1 d2 & __] (lines (describe-to-string var))
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macro? (= d1 "Macro")]
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(list :designator symbol-name
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(cond
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macro? :macro
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(:arglists (meta var)) :function
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:else :variable)
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(apply str (concat arglists (if macro? d2 d1))))))
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(defn- make-apropos-matcher [pattern case-sensitive?]
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(let [pattern (java.util.regex.Pattern/quote pattern)
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pat (re-pattern (if case-sensitive?
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pattern
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(format "(?i:%s)" pattern)))]
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(fn [var] (re-find pat (pr-str var)))))
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(defn- apropos-symbols [string external-only? case-sensitive? package]
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(let [packages (or (when package [package]) (all-ns))
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matcher (make-apropos-matcher string case-sensitive?)
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lister (if external-only? ns-publics ns-interns)]
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(filter matcher
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(apply concat (map (comp (partial map second) lister)
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packages)))))
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(defn- present-symbol-before
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"Comparator such that x belongs before y in a printed summary of symbols.
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Sorted alphabetically by namespace name and then symbol name, except
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that symbols accessible in the current namespace go first."
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[x y]
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(let [accessible?
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(fn [var] (= (maybe-resolve-sym (:name (meta var)))
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var))
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ax (accessible? x) ay (accessible? y)]
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(cond
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(and ax ay) (compare (:name (meta x)) (:name (meta y)))
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ax -1
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ay 1
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:else (let [nx (str (:ns (meta x))) ny (str (:ns (meta y)))]
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(if (= nx ny)
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(compare (:name (meta x)) (:name (meta y)))
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(compare nx ny))))))
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(defslimefn apropos-list-for-emacs
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([name]
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(apropos-list-for-emacs name nil))
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([name external-only?]
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(apropos-list-for-emacs name external-only? nil))
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([name external-only? case-sensitive?]
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(apropos-list-for-emacs name external-only? case-sensitive? nil))
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([name external-only? case-sensitive? package]
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(let [package (when package
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(maybe-ns package))]
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(map briefly-describe-symbol-for-emacs
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(sort present-symbol-before
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(apropos-symbols name external-only? case-sensitive?
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package))))))
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;;;; Operator messages
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(defslimefn operator-arglist [name package]
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(try
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(let [f (read-string name)]
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(cond
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(keyword? f) "([map])"
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(symbol? f) (let [var (ns-resolve (maybe-ns package) f)]
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(if-let [args (and var (:arglists (meta var)))]
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(pr-str args)
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nil))
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:else nil))
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(catch Throwable t nil)))
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;;;; Package Commands
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(defslimefn list-all-package-names
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([] (map (comp str ns-name) (all-ns)))
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([nicknames?] (list-all-package-names)))
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(defslimefn set-package [name]
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(let [ns (maybe-ns name)]
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(in-ns (ns-name ns))
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(list (str (ns-name ns))
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(str (ns-name ns)))))
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;;;; Tracing
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(defonce traced-fn-map {})
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(def #^{:dynamic true} *trace-level* 0)
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(defn- indent [num]
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(dotimes [x (+ 1 num)]
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(print " ")))
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(defn- trace-fn-call [sym f args]
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(let [fname (symbol (str (.name (.ns sym)) "/" (.sym sym)))]
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(indent *trace-level*)
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(println (str *trace-level* ":")
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(apply str (take 240 (pr-str (when fname (cons fname args)) ))))
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(let [result (binding [*trace-level* (+ *trace-level* 1)] (apply f args))]
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(indent *trace-level*)
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(println (str *trace-level* ": " fname " returned " (apply str (take 240 (pr-str result)))))
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result)))
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(defslimefn swank-toggle-trace [fname]
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(when-let [sym (maybe-resolve-sym fname)]
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(if-let [f# (get traced-fn-map sym)]
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(do
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(alter-var-root #'traced-fn-map dissoc sym)
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(alter-var-root sym (constantly f#))
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(str " untraced."))
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(let [f# @sym]
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(alter-var-root #'traced-fn-map assoc sym f#)
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(alter-var-root sym
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(constantly
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(fn [& args]
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(trace-fn-call sym f# args))))
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(str " traced.")))))
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(defslimefn untrace-all []
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(doseq [sym (keys traced-fn-map)]
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(swank-toggle-trace (.sym sym))))
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;;;; Source Locations
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(comment
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"Sets the default directory (java's user.dir). Note, however, that
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this will not change the search path of load-file. ")
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(defslimefn set-default-directory
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([directory & ignore]
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(System/setProperty "user.dir" directory)
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directory))
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;;;; meta dot find
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(defn- clean-windows-path [#^String path]
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;; Decode file URI encoding and remove an opening slash from
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;; /c:/program%20files/... in jar file URLs and file resources.
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(or (and (.startsWith (System/getProperty "os.name") "Windows")
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(second (re-matches #"^/([a-zA-Z]:/.*)$" path)))
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path))
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(defn- slime-zip-resource [#^java.net.URL resource]
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(let [jar-connection #^java.net.JarURLConnection (.openConnection resource)
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jar-file (.getPath (.toURI (.getJarFileURL jar-connection)))]
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(list :zip (clean-windows-path jar-file) (.getEntryName jar-connection))))
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(defn- slime-file-resource [#^java.net.URL resource]
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(list :file (clean-windows-path (.getFile resource))))
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(defn- slime-find-resource [#^String file]
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(if-let [resource (.getResource (clojure.lang.RT/baseLoader) file)]
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(if (= (.getProtocol resource) "jar")
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(slime-zip-resource resource)
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(slime-file-resource resource))))
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(defn- slime-find-file [#^String file]
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(if (.isAbsolute (File. file))
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(list :file file)
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(slime-find-resource file)))
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(defn- namespace-to-path [ns]
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(let [#^String ns-str (name (ns-name ns))
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last-dot-index (.lastIndexOf ns-str ".")]
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(if (pos? last-dot-index)
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(-> (.substring ns-str 0 last-dot-index)
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(.replace \- \_)
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(.replace \. \/)))))
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(defn- classname-to-path [class-name]
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(namespace-to-path
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(symbol (.replace class-name \_ \-))))
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(defn- location-in-file [path line]
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`(:location ~path (:line ~line) nil))
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(defn- location-label [name type]
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(if type
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(str "(" type " " name ")")
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(str name)))
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(defn- location [name type path line]
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`((~(location-label name type)
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~(if path
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(location-in-file path line)
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(list :error (format "%s - definition not found." name))))))
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(defn- location-not-found [name type]
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(location name type nil nil))
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(defn source-location-for-frame [#^StackTraceElement frame]
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(let [line (.getLineNumber frame)
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filename (if (.. frame getFileName (endsWith ".java"))
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(.. frame getClassName (replace \. \/)
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(substring 0 (.lastIndexOf (.getClassName frame) "."))
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(concat (str File/separator (.getFileName frame))))
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(let [ns-path (classname-to-path
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((re-find #"(.*?)\$"
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(.getClassName frame)) 1))]
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(if ns-path
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(str ns-path File/separator (.getFileName frame))
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(.getFileName frame))))
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path (slime-find-file filename)]
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(location-in-file path line)))
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(defn- namespace-to-filename [ns]
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(str (-> (str ns)
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(.replaceAll "\\." File/separator)
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(.replace \- \_ ))
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".clj"))
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(defn- source-location-for-meta [meta xref-type-name]
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(location (:name meta)
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xref-type-name
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(slime-find-file (:file meta))
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(:line meta)))
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(defn- find-ns-definition [sym-name]
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(if-let [ns (maybe-resolve-ns sym-name)]
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(when-let [path (slime-find-file (namespace-to-filename ns))]
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(location ns nil path 1))))
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(defn- find-var-definition [sym-name]
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(if-let [meta (meta (maybe-resolve-sym sym-name))]
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(source-location-for-meta meta "defn")))
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(defslimefn find-definitions-for-emacs [name]
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(let [sym-name (read-string name)]
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(or (find-var-definition sym-name)
|
|
(find-ns-definition sym-name)
|
|
(location name nil nil nil))))
|
|
|
|
(defn who-specializes [class]
|
|
(letfn [(xref-lisp [sym] ; see find-definitions-for-emacs
|
|
(if-let [meta (meta sym)]
|
|
(source-location-for-meta meta "method")
|
|
(location-not-found (.getName sym) "method")))]
|
|
(let [methods (try (. class getMethods)
|
|
(catch java.lang.IllegalArgumentException e nil)
|
|
(catch java.lang.NullPointerException e nil))]
|
|
(map xref-lisp methods))))
|
|
|
|
(defn who-calls [name]
|
|
(letfn [(xref-lisp [sym-var] ; see find-definitions-for-emacs
|
|
(when-let [meta (meta sym-var)]
|
|
(source-location-for-meta meta nil)))]
|
|
(let [callers (xref/all-vars-who-call name) ]
|
|
(map first (map xref-lisp callers)))))
|
|
|
|
(defslimefn xref [type name]
|
|
(let [sexp (maybe-resolve-sym name)]
|
|
(condp = type
|
|
:specializes (who-specializes sexp)
|
|
:calls (who-calls (symbol name))
|
|
:callers nil
|
|
:not-implemented)))
|
|
|
|
(defslimefn throw-to-toplevel []
|
|
(throw debug-quit-exception))
|
|
|
|
(defn invoke-restart [restart]
|
|
((nth restart 2)))
|
|
|
|
(defslimefn invoke-nth-restart-for-emacs [level n]
|
|
((invoke-restart (*sldb-restarts* (nth (keys *sldb-restarts*) n)))))
|
|
|
|
(defslimefn throw-to-toplevel []
|
|
(if-let [restart (*sldb-restarts* :quit)]
|
|
(invoke-restart restart)))
|
|
|
|
(defslimefn sldb-continue []
|
|
(if-let [restart (*sldb-restarts* :continue)]
|
|
(invoke-restart restart)))
|
|
|
|
(defslimefn sldb-abort []
|
|
(if-let [restart (*sldb-restarts* :abort)]
|
|
(invoke-restart restart)))
|
|
|
|
|
|
(defslimefn backtrace [start end]
|
|
(build-backtrace start end))
|
|
|
|
(defslimefn buffer-first-change [file-name] nil)
|
|
|
|
(defn locals-for-emacs [m]
|
|
(sort-by second
|
|
(map #(list :name (name (first %)) :id 0
|
|
:value (pr-str (second %))) m)))
|
|
|
|
(defslimefn frame-catch-tags-for-emacs [n] nil)
|
|
(defslimefn frame-locals-for-emacs [n]
|
|
(if (and (zero? n) (seq *current-env*))
|
|
(locals-for-emacs *current-env*)))
|
|
|
|
(defslimefn frame-locals-and-catch-tags [n]
|
|
(list (frame-locals-for-emacs n)
|
|
(frame-catch-tags-for-emacs n)))
|
|
|
|
(defslimefn debugger-info-for-emacs [start end]
|
|
(build-debugger-info-for-emacs start end))
|
|
|
|
(defslimefn eval-string-in-frame [expr n]
|
|
(if (and (zero? n) *current-env*)
|
|
(with-bindings *current-env*
|
|
(eval expr))))
|
|
|
|
(defslimefn frame-source-location [n]
|
|
(source-location-for-frame
|
|
(nth (.getStackTrace *current-exception*) n)))
|
|
|
|
;; Older versions of slime use this instead of the above.
|
|
(defslimefn frame-source-location-for-emacs [n]
|
|
(source-location-for-frame
|
|
(nth (.getStackTrace *current-exception*) n)))
|
|
|
|
(defslimefn create-repl [target] '("user" "user"))
|
|
|
|
;;; Threads
|
|
|
|
(def #^{:private true} thread-list (atom []))
|
|
|
|
(defn- get-root-group [#^java.lang.ThreadGroup tg]
|
|
(if-let [parent (.getParent tg)]
|
|
(recur parent)
|
|
tg))
|
|
|
|
(defn- get-thread-list []
|
|
(let [rg (get-root-group (.getThreadGroup (Thread/currentThread)))
|
|
arr (make-array Thread (.activeCount rg))]
|
|
(.enumerate rg arr true)
|
|
(seq arr)))
|
|
|
|
(defn- extract-info [#^Thread t]
|
|
(map str [(.getId t) (.getName t) (.getPriority t) (.getState t)]))
|
|
|
|
(defslimefn list-threads
|
|
"Return a list (LABELS (ID NAME STATUS ATTRS ...) ...).
|
|
LABELS is a list of attribute names and the remaining lists are the
|
|
corresponding attribute values per thread."
|
|
[]
|
|
(reset! thread-list (get-thread-list))
|
|
(let [labels '(id name priority state)]
|
|
(cons labels (map extract-info @thread-list))))
|
|
|
|
;;; TODO: Find a better way, as Thread.stop is deprecated
|
|
(defslimefn kill-nth-thread [index]
|
|
(when index
|
|
(when-let [thread (nth @thread-list index nil)]
|
|
(println "Thread: " thread)
|
|
(.stop thread))))
|
|
|
|
(defslimefn quit-thread-browser []
|
|
(reset! thread-list []))
|