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Code Issues 1 Releases Wiki Activity

Add dofile function.

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Abstracts the actually running of a file from
the require function, so a file can be easily
evaluated without being cached.
This commit is contained in:
Calvin Rose 2019-05-10 10:19:51 -04:00
parent 52ab9fb475
commit 3388acd2db
1 changed files with 29 additions and 24 deletions
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53
src/boot/boot.janet
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@ -1646,12 +1646,38 @@
circular dependencies."
@{})
(defn dofile
"Evaluate a file in a new environment and return the new environment."
[path & args]
(def {:exit exit-on-error} (table ;args))
(def f (file/open path))
(def newenv (make-env))
(defn chunks [buf _] (file/read f 2048 buf))
(defn bp [&opt x y]
(def ret (bad-parse x y))
(if exit-on-error (os/exit 1))
ret)
(defn bc [&opt x y z]
(def ret (bad-compile x y z))
(if exit-on-error (os/exit 1))
ret)
(run-context {:env newenv
:chunks chunks
:on-parse-error bp
:on-compile-error bc
:on-status (fn [f x]
(when (not= (fiber/status f) :dead)
(debug/stacktrace f x)
(if exit-on-error (os/exit 1))))
:source path})
(file/close f)
(table/setproto newenv nil))
(defn require
"Require a module with the given name. Will search all of the paths in
module/paths, then the path as a raw file path. Returns the new environment
returned from compiling and running the file."
[path & args]
(def {:exit exit-on-error} (table ;args))
(if-let [check (get module/cache path)]
check
(do
@ -1660,31 +1686,10 @@
(def env
(case mod-kind
:source (do
# Normal janet module
(def f (file/open fullpath))
(def newenv (make-env))
(put module/loading fullpath true)
(defn chunks [buf _] (file/read f 2048 buf))
(defn bp [&opt x y]
(def ret (bad-parse x y))
(if exit-on-error (os/exit 1))
ret)
(defn bc [&opt x y z]
(def ret (bad-compile x y z))
(if exit-on-error (os/exit 1))
ret)
(run-context {:env newenv
:chunks chunks
:on-parse-error bp
:on-compile-error bc
:on-status (fn [f x]
(when (not= (fiber/status f) :dead)
(debug/stacktrace f x)
(if exit-on-error (os/exit 1))))
:source fullpath})
(file/close f)
(def newenv (dofile fullpath ;args))
(put module/loading fullpath nil)
(table/setproto newenv nil))
newenv)
:native (native fullpath (make-env))
:image (load-image (slurp fullpath))))
(put module/cache fullpath env)