clojure.core/load-file

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Type: function Added: Clojure 1.0 Examples: 3 Runnable: 0

([name])

Sequentially read and evaluate the set of forms contained in the file.

Examples

by gstamp on 2010-10-05 . May have evaluation errors. ▶

;; Very useful from a REPL ;; Paths are specified as strings using canonical file path notation ;; (rather than clojure-style namespaces dependent on the JVM classpath). ;; The working directory is set to wherever you invoked the JVM from, ;; likely the project root. (load-file "src/mylib/core.clj") ;; now you can go and evaluate vars defined in that file.

by lambder on 2011-06-13 . May have evaluation errors. ▶

;; file located at src/address_book/core.clj ;; current dir is src/.. (load-file "src/address_book/core.clj")

by shockbob on 2011-08-21 . May have evaluation errors. ▶

;; create a clojure file on the fly using spit ;; then load it into the REPL and use its function ;; notice the return value is var quote of the last form of file (spit "mycode.clj" "(defn doub [x] (* x 2))") nil (load-file "mycode.clj") #'user/doub (doub 23) 46 ;; Note this is similar to using load-string: (load-string "(defn doub [x] (* x 2))") #'user/doub

Note by dedeibel

Be aware that this function is intended to load code only. If your data structures or a string in them grow bigger than around 65,535 it crashes.

Exception similar to:

java.lang.ClassFormatError: Unknown constant tag 49 in class file parse$eval13

Please use read-string instead.

Example:

(read-string (slurp "data.clj"))

Source: Google Groups

Note by arkh

The following marginally helpful error will be thrown if you have a typo in your file:

CompilerException java.lang.RuntimeException: Unable to resolve symbol: load-file in this context, compiling:(NO_SOURCE_PATH:1:1)

Fix the syntax error(s) in and you'll be able to use load-file again.

See also

• clojure.core/load (0)
• clojure.core/spit (1)
• clojure.core/load-string (0)

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