Supported nREPL operations

generated from a verbose 'describe' response (nREPL v0.2.11-SNAPSHOT)

Operations

:clone

Clones the current session, returning the ID of the newly-created session.

Required parameters

Optional parameters

• :session The ID of the session to be cloned; if not provided, a new session with default bindings is created, and mapped to the returned session ID.

Returns

• :new-session The ID of the new session.

:close

Closes the specified session.

Required parameters

• :session The ID of the session to be closed.

Optional parameters

Returns

:describe

Produce a machine- and human-readable directory and documentation for the operations supported by an nREPL endpoint.

Required parameters

Optional parameters

• :verbose? Include informational detail for each "op"eration in the return message.

Returns

• :aux Map of auxilliary data contributed by all of the active nREPL middleware via :describe-fn functions in their descriptors.
• :ops Map of "op"erations supported by this nREPL endpoint
• :versions Map containing version maps (like *clojure-version*, e.g. major, minor, incremental, and qualifier keys) for values, component names as keys. Common keys include "nrepl" and "clojure".

:eval

Evaluates code.

Required parameters

• :code The code to be evaluated.
• :session The ID of the session within which to evaluate the code.

Optional parameters

• :column The column number in [file] at which [code] starts.
• :eval A fully-qualified symbol naming a var whose function value will be used to evaluate [code], instead of clojure.core/eval (the default).
• :file The path to the file containing [code]. clojure.core/\*file\* will be bound to this.
• :id An opaque message ID that will be included in responses related to the evaluation, and which may be used to restrict the scope of a later "interrupt" operation.
• :line The line number in [file] at which [code] starts.

Returns

• :ex The type of exception thrown, if any. If present, then values will be absent.
• :ns *ns*, after successful evaluation of code.
• :root-ex The type of the root exception thrown, if any. If present, then values will be absent.
• :values The result of evaluating code, often readable. This printing is provided by the pr-values middleware, and could theoretically be customized. Superseded by ex and root-ex if an exception occurs during evaluation.

:interrupt

Attempts to interrupt some code evaluation.

Required parameters

• :session The ID of the session used to start the evaluation to be interrupted.

Optional parameters

• :interrupt-id The opaque message ID sent with the original "eval" request.

Returns

• :status 'interrupted' if an evaluation was identified and interruption will be attempted 'session-idle' if the session is not currently evaluating any code 'interrupt-id-mismatch' if the session is currently evaluating code sent using a different ID than specified by the "interrupt-id" value

:load-file

Loads a body of code, using supplied path and filename info to set source file and line number metadata. Delegates to underlying "eval" middleware/handler.

Required parameters

• :file Full contents of a file of code.

Optional parameters

• :file-name Name of source file, e.g. io.clj
• :file-path Source-path-relative path of the source file, e.g. clojure/java/io.clj

Returns

• :ex The type of exception thrown, if any. If present, then values will be absent.
• :ns *ns*, after successful evaluation of code.
• :root-ex The type of the root exception thrown, if any. If present, then values will be absent.
• :values The result of evaluating code, often readable. This printing is provided by the pr-values middleware, and could theoretically be customized. Superseded by ex and root-ex if an exception occurs during evaluation.

:ls-sessions

Lists the IDs of all active sessions.

Required parameters

Optional parameters

Returns

• :sessions A list of all available session IDs.

:stdin

Add content from the value of "stdin" to *in* in the current session.

Required parameters

• :stdin Content to add to *in*.

Optional parameters

Returns

• :status A status of "need-input" will be sent if a session's *in* requires content in order to satisfy an attempted read operation.