application/octet-stream
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2.21 KB
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61 lines
; Nujel - Copyright (C) 2020-2021 - Benjamin Vincent Schulenburg
; This project uses the MIT license, a copy should be included under /LICENSE
;; Introspection and procedures returning info about the runtime
[defn display/error/wrap [i text]
[case i
[0 [ansi-red text]]
[1 [string text]]
[2 [ansi-yellow [str/write text]]]
[3 [describe/closure text]]
[otherwise text]]]
[defn display/error/iter [error i]
[if error
[cons [display/error/wrap i [car error]]
[display/error/iter [cdr error] [+ 1 i]]]
[cons "" #nil]]]
[defn display/error [error]
"Display ERROR in a nice, human readable way"
[display [join [display/error/iter error 0] "\r\n"]]]
[defn describe/thing [o]
"Describe a specific value O"
[def doc [closure o]]
[cat [str/write [ref doc :arguments]] " - " [ref doc :documentation]]]
[defn describe/string [a]
"Descibe whatever value string A resolves to"
[describe/thing [resolve [str->sym a]]]]
[defn describe [fun] "Describe FUN, if there is documentation available"
[if [string? fun]
[describe/string fun]
[describe/thing fun]]]
[defn mem []
"Return some pretty printed memory usage information" ;
[def info [memory-info]]
[cat [ansi-white "Memory Info"] "\n"
[ansi-green "Values: "] [getf info :value] "\n"
[ansi-blue "Closures: "] [getf info :closure] "\n"
[ansi-red "Arrays: "] [getf info :array] "\n"
[ansi-yellow "STrings: "] [getf info :string] "\n"
[ansi-pink "Symbols: "] [getf info :symbol] "\n"
ansi-reset]]
[defn symbol-table [off len environment]
"Return a list of LEN symbols defined in ENVIRONMENT starting at OFF"
[when-not environment [set! environment root-closure]]
[when-not off [set! off 0]]
[when-not len [set! len 9999999]]
[sublist [apply environment '[[symbol-table*]]] off [+ off len] #nil]]
[def gensym/counter 0]
[defn gensym [prefix]
[++ gensym/counter]
[str->sym [cat prefix "ΓεnΣym-" gensym/counter]]]
[def root-closure [current-closure]]
