mirror of
https://github.com/janet-lang/janet
synced 2025-01-14 01:20:27 +00:00
Cleanup boot.janet to be more like normal source code.
Don't use `undef`, just use private defines.
This commit is contained in:
Calvin Rose
parent
c9ea3ac304
commit
d122a75efd
@ -7,8 +7,6 @@
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###
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###
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(def root-env "The root environment used to create environments with (make-env)" _env)
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(def defn :macro
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```
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(defn name & more)
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@ -585,16 +583,6 @@
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[& body]
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(tuple fiber/new (tuple 'fn '[] ;body) :yi))
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(defmacro- undef
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"Remove binding from root-env"
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[& syms]
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~(do ,;(seq [s :in syms] ~(put root-env ',s nil))))
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(undef _env)
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(undef loop1 check-indexed for-template for-var-template iterate-template
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each-template range-template)
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(defn sum
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"Returns the sum of xs. If xs is empty, returns 0."
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[xs]
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@ -757,8 +745,6 @@
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(defn even? "Check if x is even." [x] (= 0 (compare 0 (mod x 2))))
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(defn odd? "Check if x is odd." [x] (= 0 (compare 1 (mod x 2))))
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(undef compare-reduce)
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###
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###
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### Indexed Combinators
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@ -770,7 +756,7 @@
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a
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(if (not= (> b a) (> b c)) b c)))
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(defn sort-help [a lo hi by]
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(defn- sort-help [a lo hi by]
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(when (< lo hi)
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(def pivot
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(median-of-three (in a hi) (in a lo)
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@ -796,9 +782,6 @@
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[a &opt by]
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(sort-help a 0 (- (length a) 1) (or by <)))
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(undef median-of-three)
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(undef sort-help)
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(defn sort-by
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`Returns a new sorted array that compares elements by invoking
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a function on each element and comparing the result with <.`
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@ -1204,9 +1187,6 @@
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(tuple/brackets ;x)))
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form))
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(undef walk-ind)
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(undef walk-dict)
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(defn postwalk
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`Do a post-order traversal of a data structure and call (f x)
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on every visitation.`
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@ -2033,10 +2013,11 @@
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###
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###
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# Get boot options
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(def- boot/opts @{})
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# Initialize syspath and header path
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(each [k v] (partition 2 (tuple/slice boot/args 2))
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(put boot/opts k v))
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(case k
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"JANET_PATH" (setdyn :syspath v)
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"JANET_HEADERPATH" (setdyn :headerpath v)))
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(defn make-env
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`Create a new environment table. The new environment
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@ -2331,9 +2312,6 @@
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```
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@[])
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(setdyn :syspath (boot/opts "JANET_PATH"))
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(setdyn :headerpath (boot/opts "JANET_HEADERPATH"))
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(defn module/add-paths
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```
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Add paths to module/paths for a given loader such that
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@ -2361,7 +2339,7 @@
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(array/insert module/paths 0 [(fn is-cached [path] (if (in module/cache path) path)) :preload check-is-dep])
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# Version of fexists that works even with a reduced OS
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(defn fexists
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(defn- fexists
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[path]
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(compif (dyn 'os/stat)
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(= :file (os/stat path :mode))
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@ -2408,12 +2386,6 @@
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str-parts (interpose "\n " paths)]
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[nil (string "could not find module " path ":\n " ;str-parts)])))
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(undef fexists)
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(undef mod-filter)
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(undef check-relative)
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(undef check-project-relative)
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(undef check-is-dep)
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(def module/loading
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`Table mapping currently loading modules to true. Used to prevent
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circular dependencies.`
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@ -2507,7 +2479,7 @@
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m)))
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:image (fn image-loader [path &] (load-image (slurp path)))})
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(defn require-1
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(defn- require-1
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[path args kargs]
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(def [fullpath mod-kind] (module/find path))
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(unless fullpath (error mod-kind))
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@ -2556,8 +2528,6 @@
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(string (last (string/split "/" path)) "/")))
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(merge-module env newenv prefix ep))
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(undef require-1)
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(defmacro import
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`Import a module. First requires the module, and then merges its
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symbols into the current environment, prepending a given prefix as needed.
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@ -2918,10 +2888,6 @@
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(if-not found
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(print "documentation for value " x " not found.")))
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(undef env-walk)
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(undef print-index)
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(undef print-module-entry)
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###
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###
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### Debugger
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@ -2967,71 +2933,67 @@
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(in (.slots frame-idx) (or nth 0)))
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# Conditional compilation for disasm
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(def disasm-alias (if-let [x (root-env 'disasm)] (x :value)))
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(compwhen (dyn 'disasm)
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(defn .disasm
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"Gets the assembly for the current function."
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[&opt n]
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(def frame (.frame n))
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(def func (frame :function))
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(disasm-alias func))
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(defn .disasm
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"Gets the assembly for the current function."
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[&opt n]
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(def frame (.frame n))
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(def func (frame :function))
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(disasm func))
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(defn .bytecode
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"Get the bytecode for the current function."
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[&opt n]
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((.disasm n) :bytecode))
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(defn .bytecode
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"Get the bytecode for the current function."
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[&opt n]
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((.disasm n) :bytecode))
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(defn .ppasm
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"Pretty prints the assembly for the current function"
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[&opt n]
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(def frame (.frame n))
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(def func (frame :function))
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(def dasm (disasm-alias func))
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(def bytecode (in dasm :bytecode))
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(def pc (frame :pc))
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(def sourcemap (in dasm :sourcemap))
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(var last-loc [-2 -2])
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(print "\n signal: " (.signal))
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(print " function: " (dasm :name) " [" (in dasm :source "") "]")
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(when-let [constants (dasm :constants)]
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(printf " constants: %.4q" constants))
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(printf " slots: %.4q\n" (frame :slots))
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(def padding (string/repeat " " 20))
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(loop [i :range [0 (length bytecode)]
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:let [instr (bytecode i)]]
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(prin (if (= (tuple/type instr) :brackets) "*" " "))
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(prin (if (= i pc) "> " " "))
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(prinf "%.20s" (string (string/join (map string instr) " ") padding))
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(when sourcemap
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(let [[sl sc] (sourcemap i)
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loc [sl sc]]
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(when (not= loc last-loc)
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(set last-loc loc)
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(prin " # line " sl ", column " sc))))
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(defn .ppasm
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"Pretty prints the assembly for the current function"
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[&opt n]
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(def frame (.frame n))
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(def func (frame :function))
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(def dasm (disasm func))
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(def bytecode (in dasm :bytecode))
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(def pc (frame :pc))
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(def sourcemap (in dasm :sourcemap))
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(var last-loc [-2 -2])
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(print "\n signal: " (.signal))
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(print " function: " (dasm :name) " [" (in dasm :source "") "]")
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(when-let [constants (dasm :constants)]
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(printf " constants: %.4q" constants))
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(printf " slots: %.4q\n" (frame :slots))
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(def padding (string/repeat " " 20))
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(loop [i :range [0 (length bytecode)]
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:let [instr (bytecode i)]]
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(prin (if (= (tuple/type instr) :brackets) "*" " "))
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(prin (if (= i pc) "> " " "))
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(prinf "%.20s" (string (string/join (map string instr) " ") padding))
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(when sourcemap
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(let [[sl sc] (sourcemap i)
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loc [sl sc]]
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(when (not= loc last-loc)
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(set last-loc loc)
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(prin " # line " sl ", column " sc))))
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(print))
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(print))
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(print))
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(defn .breakall
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"Set breakpoints on all instructions in the current function."
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[&opt n]
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(def fun (.fn n))
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(def bytecode (.bytecode n))
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(forv i 0 (length bytecode)
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(debug/fbreak fun i))
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(print "Set " (length bytecode) " breakpoints in " fun))
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(defn .breakall
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"Set breakpoints on all instructions in the current function."
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[&opt n]
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(def fun (.fn n))
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(def bytecode (.bytecode n))
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(forv i 0 (length bytecode)
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(debug/fbreak fun i))
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(print "Set " (length bytecode) " breakpoints in " fun))
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(defn .clearall
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"Clear all breakpoints on the current function."
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[&opt n]
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(def fun (.fn n))
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(def bytecode (.bytecode n))
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(forv i 0 (length bytecode)
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(debug/unfbreak fun i))
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(print "Cleared " (length bytecode) " breakpoints in " fun))
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(unless (get root-env 'disasm)
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(undef .disasm .bytecode .breakall .clearall .ppasm))
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(undef disasm-alias)
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(defn .clearall
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"Clear all breakpoints on the current function."
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[&opt n]
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(def fun (.fn n))
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(def bytecode (.bytecode n))
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(forv i 0 (length bytecode)
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(debug/unfbreak fun i))
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(print "Cleared " (length bytecode) " breakpoints in " fun)))
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(defn .source
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"Show the source code for the function being debugged."
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@ -3087,7 +3049,6 @@
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(def- debugger-keys (filter (partial string/has-prefix? ".") (keys root-env)))
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(each k debugger-keys (put debugger-env k (root-env k)) (put root-env k nil))
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(undef debugger-keys)
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###
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###
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@ -3161,6 +3122,7 @@
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###
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(compwhen (dyn 'ev/go)
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(defn net/close "Alias for ev/close." [stream] (ev/close stream))
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(defn ev/call
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@ -3212,9 +3174,7 @@
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(,wait-for-fibers ,chan
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,(seq [[i body] :pairs bodies]
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~(,ev/go (,fiber/new (fn [] (put ,res ,i ,body)) :tp) nil ,chan)))
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,res)))
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(undef wait-for-fibers))
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,res))))
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(compwhen (dyn 'net/listen)
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(defn net/server
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@ -3256,7 +3216,7 @@
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(defn- use-2 [evaluator args]
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(each a args (import* (string a) :prefix "" :evaluator evaluator)))
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(defn flycheck-evaluator
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(defn- flycheck-evaluator
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``An evaluator function that is passed to `run-context` that lints (flychecks) code.
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This means code will parsed and compiled, macros executed, but the code will not be run.
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Used by `flycheck`.``
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@ -3299,7 +3259,6 @@
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###
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###
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# conditional compilation for reduced os
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(def- getenv-alias (if-let [entry (in root-env 'os/getenv)] (entry :value) (fn [&])))
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@ -3425,23 +3384,6 @@
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(setdyn :err-color (if *colorize* true))
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(repl getchunk nil env)))))
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(undef no-side-effects is-safe-def safe-forms importers use-2 getenv-alias)
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###
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###
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### Clean up
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###
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###
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(do
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(undef boot/opts undef)
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(def load-dict (env-lookup root-env))
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(put load-dict 'boot/config nil)
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(put load-dict 'boot/args nil)
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(each [k v] (pairs load-dict)
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(if (number? v) (put load-dict k nil)))
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(merge-into load-image-dict load-dict))
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###
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###
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### Bootstrap
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@ -3459,29 +3401,38 @@
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(put into k (x k))))
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into)
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# Modify env based on some options.
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(loop [[k v] :pairs root-env
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# Modify root-env to remove private symbols and
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# flatten nested tables.
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(loop [[k v] :in (pairs root-env)
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:when (symbol? k)]
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(def flat (proto-flatten @{} v))
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(when (boot/config :no-docstrings)
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(put flat :doc nil))
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(when (boot/config :no-sourcemaps)
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(put flat :source-map nil))
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(put root-env k flat))
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(if (v :private)
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(put root-env k nil)
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(put root-env k flat)))
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(put root-env 'boot/config nil)
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(put root-env 'boot/args nil)
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(def image (let [env-pairs (pairs (env-lookup root-env))
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essential-pairs (filter (fn [[k v]] (or (cfunction? v) (abstract? v))) env-pairs)
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lookup (table ;(mapcat identity essential-pairs))
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reverse-lookup (invert lookup)]
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# Check no duplicate values
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(def temp @{})
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(eachp [k v] lookup
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(if (in temp v) (errorf "duplicate value: %v" v))
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(put temp v k))
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(marshal root-env reverse-lookup)))
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# Build dictionary for loading images
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(def load-dict (env-lookup root-env))
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(each [k v] (pairs load-dict)
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(if (number? v) (put load-dict k nil)))
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(merge-into load-image-dict load-dict)
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(def image
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(let [env-pairs (pairs (env-lookup root-env))
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essential-pairs (filter (fn [[k v]] (or (cfunction? v) (abstract? v))) env-pairs)
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lookup (table ;(mapcat identity essential-pairs))
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reverse-lookup (invert lookup)]
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# Check no duplicate values
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(def temp @{})
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(eachp [k v] lookup
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(if (in temp v) (errorf "duplicate value: %v" v))
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(put temp v k))
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(marshal root-env reverse-lookup)))
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# Create amalgamation
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@ -1206,7 +1206,8 @@ JanetTable *janet_core_env(JanetTable *replacements) {
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"if native modules are compatible with the host program."));
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/* Allow references to the environment */
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janet_def(env, "_env", janet_wrap_table(env), JDOC("The environment table for the current scope."));
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janet_def(env, "root-env", janet_wrap_table(env),
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JDOC("The root environment used to create environments with (make-env)."));
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janet_load_libs(env);
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janet_gcroot(janet_wrap_table(env));
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