mal/logo/core.lg

load "../logo/types.lg
load "../logo/reader.lg
load "../logo/printer.lg

make "global_exception []

to bool_to_mal :bool
output ifelse :bool [true_new] [false_new]
end

to mal_equal_q :a :b
output bool_to_mal equal_q :a :b
end

to mal_throw :a
make "global_exception :a
(throw "error "_mal_exception_)
end

to mal_nil_q :a
output bool_to_mal ((obj_type :a) = "nil)
end

to mal_true_q :a
output bool_to_mal ((obj_type :a) = "true)
end

to mal_false_q :a
output bool_to_mal ((obj_type :a) = "false)
end

to mal_string_q :a
output bool_to_mal ((obj_type :a) = "string)
end

to mal_symbol :a
output symbol_new obj_val :a
end

to mal_symbol_q :a
output bool_to_mal ((obj_type :a) = "symbol)
end

to mal_keyword :a
output obj_new "keyword obj_val :a
end

to mal_keyword_q :a
output bool_to_mal ((obj_type :a) = "keyword)
end

to mal_pr_str [:args]
output obj_new "string pr_seq :args "true " " :space_char
end

to mal_str [:args]
output obj_new "string pr_seq :args "false " " "
end

to mal_prn [:args]
print pr_seq :args "true " " :space_char
output nil_new
end

to mal_println [:args]
print pr_seq :args "false " " :space_char
output nil_new
end

to mal_read_string :str
output read_str obj_val :str
end

to mal_readline :prompt
localmake "line readline obj_val :prompt
if :line=[] [output nil_new]
output obj_new "string :line
end

to mal_slurp :str
openread obj_val :str
setread obj_val :str
localmake "content "
while [not eofp] [
  make "content word :content readchar
]
close obj_val :str
output obj_new "string :content
end

to mal_lt :a :b
output bool_to_mal ((obj_val :a) < (obj_val :b))
end

to mal_lte :a :b
output bool_to_mal ((obj_val :a) <= (obj_val :b))
end

to mal_gt :a :b
output bool_to_mal ((obj_val :a) > (obj_val :b))
end

to mal_gte :a :b
output bool_to_mal ((obj_val :a) >= (obj_val :b))
end

to mal_add :a :b
output obj_new "number ((obj_val :a) + (obj_val :b))
end

to mal_sub :a :b
output obj_new "number ((obj_val :a) - (obj_val :b))
end

to mal_mul :a :b
output obj_new "number ((obj_val :a) * (obj_val :b))
end

to mal_div :a :b
output obj_new "number ((obj_val :a) / (obj_val :b))
end

to mal_time_ms
; Native function timems is added to coms.c (see Dockerfile)
output obj_new "number timems
end

to mal_list [:args]
output obj_new "list :args
end

to mal_list_q :a
output bool_to_mal ((obj_type :a) = "list)
end

to mal_vector [:args]
output obj_new "vector :args
end

to mal_vector_q :a
output bool_to_mal ((obj_type :a) = "vector)
end

to mal_hash_map [:args]
localmake "h []
localmake "i 1
while [:i < count :args] [
  make "h hashmap_put :h item :i :args item (:i + 1) :args
  make "i (:i + 2)
]
output obj_new "hashmap :h
end

to mal_map_q :a
output bool_to_mal ((obj_type :a) = "hashmap)
end

to mal_assoc :map [:args]
localmake "h obj_val :map
localmake "i 1
while [:i < count :args] [
  make "h hashmap_put :h item :i :args item (:i + 1) :args
  make "i (:i + 2)
]
output obj_new "hashmap :h
end

to mal_dissoc :map [:args]
localmake "h obj_val :map
foreach :args [make "h hashmap_delete :h ?]
output obj_new "hashmap :h
end

to mal_get :map :key
localmake "val hashmap_get obj_val :map :key
if emptyp :val [output nil_new]
output :val
end

to mal_contains_q :map :key
localmake "val hashmap_get obj_val :map :key
output bool_to_mal not emptyp :val
end

to mal_keys :map
localmake "h obj_val :map
localmake "keys []
localmake "i 1
while [:i <= count :h] [
  make "keys lput item :i :h :keys
  make "i (:i + 2)
]
output obj_new "list :keys
end

to mal_vals :map
localmake "h obj_val :map
localmake "values []
localmake "i 2
while [:i <= count :h] [
  make "values lput item :i :h :values
  make "i (:i + 2)
]
output obj_new "list :values
end

to mal_sequential_q :a
output bool_to_mal sequentialp :a
end

to mal_cons :a :b
output obj_new "list fput :a obj_val :b
end

to mal_concat [:args]
output obj_new "list apply "sentence map [obj_val ?] :args
end

to mal_nth :a :i
if (obj_val :i) >= _count :a [(throw "error [nth: index out of range])]
output nth :a obj_val :i
end

to mal_first :a
output cond [
  [[(obj_type :a) = "nil] nil_new]
  [[(_count :a) = 0]      nil_new]
  [else                   first obj_val :a]
]
end

to mal_rest :a
output obj_new "list cond [
  [[(obj_type :a) = "nil] []]
  [[(_count :a) = 0]      []]
  [else                   butfirst obj_val :a]
]
end

to mal_empty_q :a
output bool_to_mal (emptyp obj_val :a)
end

to mal_count :a
output obj_new "number _count :a
end

to mal_apply :f [:args]
localmake "callargs obj_new "list sentence butlast :args obj_val last :args
output invoke_fn :f :callargs
end

to mal_map :f :seq
output obj_new "list map [invoke_fn :f obj_new "list (list ?)] obj_val :seq
end

to mal_conj :a0 [:rest]
case obj_type :a0 [
  [[list]   localmake "newlist :a0
            foreach :rest [make "newlist mal_cons ? :newlist]
            output :newlist ]
  [[vector] output obj_new "vector sentence obj_val :a0 :rest ]
  [else     (throw "error [conj requires list or vector]) ]
]
end

to mal_seq :a
case obj_type :a [
  [[string]
    if (_count :a) = 0 [output nil_new]
    localmake "chars []
    foreach obj_val :a [ make "chars lput obj_new "string ? :chars ]
    output obj_new "list :chars ]
  [[list]
    if (_count :a) = 0 [output nil_new]
    output :a ]
  [[vector]
    if (_count :a) = 0 [output nil_new]
    output obj_new "list obj_val :a ]
  [[nil] output nil_new ]
  [else (throw "error [seq requires string or list or vector or nil]) ]
]
end

to mal_meta :a
localmake "m obj_meta :a
if emptyp :m [output nil_new]
output :m
end

to mal_with_meta :a :new_meta
localmake "m ifelse (obj_type :new_meta) = "nil [[]] [:new_meta]
output obj_new_with_meta obj_type :a obj_val :a :m
end

to mal_atom :a
output obj_new "atom :a
end

to mal_atom_q :a
output bool_to_mal ((obj_type :a) = "atom)
end

to mal_deref :a
output obj_val :a
end

to mal_reset_bang :a :val
.setfirst butfirst :a :val
output :val
end

to invoke_fn :f :callargs
output case obj_type :f [
  [[nativefn]
    apply obj_val :f obj_val :callargs ]
  [[fn]
    _eval fn_body :f env_new fn_env :f fn_args :f :callargs ]
  [else
    (throw "error [Wrong type for apply])]
]
end

to mal_swap_bang :atom :f [:args]
localmake "callargs obj_new "list fput mal_deref :atom :args
output mal_reset_bang :atom invoke_fn :f :callargs
end

to logo_to_mal :a
output cond [
  [[:a = "true]  true_new]
  [[:a = "false] false_new]
  [[numberp :a]  obj_new "number :a]
  [[wordp :a]    obj_new "string :a]
  [[listp :a]    obj_new "list map [logo_to_mal ?] :a]
  [else          nil_new]
]
end

to mal_logo_eval :str
make "res runresult obj_val :str
if emptyp :res [output nil_new]
output logo_to_mal first :res
end

make "core_ns [
  [[symbol =]           [nativefn mal_equal_q]]
  [[symbol throw]       [nativefn mal_throw]]

  [[symbol nil?]        [nativefn mal_nil_q]]
  [[symbol true?]       [nativefn mal_true_q]]
  [[symbol false?]      [nativefn mal_false_q]]
  [[symbol string?]     [nativefn mal_string_q]]
  [[symbol symbol]      [nativefn mal_symbol]]
  [[symbol symbol?]     [nativefn mal_symbol_q]]
  [[symbol keyword]     [nativefn mal_keyword]]
  [[symbol keyword?]    [nativefn mal_keyword_q]]

  [[symbol pr-str]      [nativefn mal_pr_str]]
  [[symbol str]         [nativefn mal_str]]
  [[symbol prn]         [nativefn mal_prn]]
  [[symbol println]     [nativefn mal_println]]
  [[symbol read-string] [nativefn mal_read_string]]
  [[symbol readline]    [nativefn mal_readline]]
  [[symbol slurp]       [nativefn mal_slurp]]

  [[symbol <]           [nativefn mal_lt]]
  [[symbol <=]          [nativefn mal_lte]]
  [[symbol >]           [nativefn mal_gt]]
  [[symbol >=]          [nativefn mal_gte]]
  [[symbol +]           [nativefn mal_add]]
  [[symbol -]           [nativefn mal_sub]]
  [[symbol *]           [nativefn mal_mul]]
  [[symbol /]           [nativefn mal_div]]
  [[symbol time-ms]     [nativefn mal_time_ms]]

  [[symbol list]        [nativefn mal_list]]
  [[symbol list?]       [nativefn mal_list_q]]
  [[symbol vector]      [nativefn mal_vector]]
  [[symbol vector?]     [nativefn mal_vector_q]]
  [[symbol hash-map]    [nativefn mal_hash_map]]
  [[symbol map?]        [nativefn mal_map_q]]
  [[symbol assoc]       [nativefn mal_assoc]]
  [[symbol dissoc]      [nativefn mal_dissoc]]
  [[symbol get]         [nativefn mal_get]]
  [[symbol contains?]   [nativefn mal_contains_q]]
  [[symbol keys]        [nativefn mal_keys]]
  [[symbol vals]        [nativefn mal_vals]]

  [[symbol sequential?] [nativefn mal_sequential_q]]
  [[symbol cons]        [nativefn mal_cons]]
  [[symbol concat]      [nativefn mal_concat]]
  [[symbol nth]         [nativefn mal_nth]]
  [[symbol first]       [nativefn mal_first]]
  [[symbol rest]        [nativefn mal_rest]]
  [[symbol empty?]      [nativefn mal_empty_q]]
  [[symbol count]       [nativefn mal_count]]
  [[symbol apply]       [nativefn mal_apply]]
  [[symbol map]         [nativefn mal_map]]

  [[symbol conj]        [nativefn mal_conj]]
  [[symbol seq]         [nativefn mal_seq]]

  [[symbol meta]        [nativefn mal_meta]]
  [[symbol with-meta]   [nativefn mal_with_meta]]
  [[symbol atom]        [nativefn mal_atom]]
  [[symbol atom?]       [nativefn mal_atom_q]]
  [[symbol deref]       [nativefn mal_deref]]
  [[symbol reset!]      [nativefn mal_reset_bang]]
  [[symbol swap!]       [nativefn mal_swap_bang]]

  [[symbol logo-eval]   [nativefn mal_logo_eval]]
]