1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
from .. import TypeEnum, Environment, Arg, Builtin, evaluate, InterpretPanic
from ..structs import *
import random
LISTS = Environment()
def interpretListLength(symbol, args, env, ns):
return Int(len(args[0].args))
LISTS.register("list-length", Builtin("list-length", interpretListLength, [Arg("arg", TypeEnum.LIST)], return_type=Type(":int")))
def interpretFirst(symbol, args, env, ns):
if len(args[0].args) == 0:
raise InterpretPanic(symbol, "list is empty")
return evaluate(args[0].args[0], env, ns)
LISTS.register("first", Builtin("first", interpretFirst, [Arg("arg", TypeEnum.LIST, )]))
def interpretRest(symbol, args, env, ns):
# TODO do we know it's not evaluated?
return List(args[0].args[1:]) # we don't evaluate the remainder of the list
LISTS.register("rest", Builtin("rest", interpretRest, [Arg("arg", TypeEnum.LIST)], return_type=Type(":list")))
def interpretListReverse(symbol, args, env, ns):
new_args = args[0].args[:] # make a copy of the args
new_args.reverse()
return List(new_args)
LISTS.register("list-reverse", Builtin("list-reverse", interpretListReverse, [Arg("list", TypeEnum.LIST)], return_type=Type(":list")))
def interpretEmpty(symbol, args, env, ns):
return Bool(len(args[0].args) == 0)
LISTS.register("empty?", Builtin("empty?", interpretEmpty, [Arg("list", TypeEnum.LIST)], return_type=Type(":bool")))
def interpretShuf(symbol, args, env, ns):
items = args[0].args[:]
random.shuffle(items)
return List(items)
LISTS.register("shuf", Builtin("shuf", interpretShuf, [Arg("list", TypeEnum.LIST)], return_type=Type(":list")))
def interpretIn(symbol, args, env, ns):
target = args[0]
lst = args[1]
for arg in lst.args:
if type(arg) == type(target) and arg.value == target.value:
return Bool(True)
return Bool(False)
in_target_arg = Arg("target", TypeEnum.LITERAL)
in_list_arg = Arg("list", TypeEnum.LIST)
LISTS.register("in?", Builtin("in?", interpretIn, [in_target_arg, in_list_arg], return_type=Type(":bool")))
def interpretLast(symbol, args, env, ns):
if len(args[0].args) == 0:
raise InterpretPanic("List is empty")
return evaluate(args[0].args[-1], env, ns)
LISTS.register("last", Builtin("last", interpretLast, [Arg("list", TypeEnum.LIST)]))
def interpretSlice(symbol, args, env, ns):
lst = args[0]
idx = args[1]
if len(args) == 2:
return List(lst.args[idx.value - 1:])
length = args[2]
diff = idx.value - 1 + length.value
return List(lst.args[idx.value - 1:diff])
slice_list_arg = Arg("list", TypeEnum.LIST)
slice_idx_arg = Arg("idx", TypeEnum.INT)
slice_length_arg = Arg("length", TypeEnum.INT, optional=True)
LISTS.register("slice", Builtin("slice", interpretSlice, [slice_list_arg, slice_idx_arg, slice_length_arg], return_type=Type(":list")))
def interpretAppend(symbol, args, env, ns):
lst = args[0]
val = args[1]
items = lst.args[:]
return List(items + [val])
LISTS.register("append", Builtin("append", interpretAppend, [Arg("list", TypeEnum.LIST), Arg("item", TypeEnum.ANY)], return_type=Type(":list")))
# TODO: this is actually for records/structs/whatever they're called
def interpretRemove(symbol, args, env, ns):
lst = args[0]
key = args[1]
out = []
for arg in lst.args:
if arg.args[0].value != key.value:
out.append(arg)
return List(out)
LISTS.register("remove", Builtin("remove", interpretRemove, [Arg("list", TypeEnum.LIST), Arg("key", TypeEnum.ANY)], return_type=Type(":list")))
def interpretZip(symbol, args, env, ns):
z1 = args[0]
z2 = args[1]
if len(z1.args) != len(z2.args):
raise InterpretPanic(symbol, "requires two :lists of the same size")
out = []
for idx in range(len(z1.args)):
f = z1.args[idx]
s = z2.args[idx]
out.append(List([f, s]))
return List(out)
zip_arg = Arg("list", TypeEnum.LIST)
LISTS.register("zip", Builtin("zip", interpretZip, [zip_arg, zip_arg], return_type=Type(":list")))
def interpretList(symbol, args, env, ns):
return List(args)
LISTS.register("list", Builtin("list", interpretList, [], Arg("item", TypeEnum.ANY), Type(":list")))
def interpretSortNumbers(symbol, args, env, ns):
items = []
for arg in args[0].args:
if not isinstance(arg, Int) and not isinstance(arg, Float):
raise InterpretPanic(symbol, "requires all :numbers", arg)
items.append(arg.value)
items.sort()
out = []
for item in items:
if isinstance(item, int):
out.append(Int(item))
else:
out.append(Float(item))
return List(out)
LISTS.register("sort-numbers", Builtin("sort-numbers", interpretSortNumbers, [Arg("list", TypeEnum.LIST)], return_type=Type(":list")))
def interpretPrepend(symbol, args, env, ns):
lst = args[0]
val = args[1]
items = lst.args[:]
return List([val] + items)
LISTS.register("prepend", Builtin("prepend", interpretPrepend, [Arg("list", TypeEnum.LIST), Arg("item", TypeEnum.ANY)], return_type=Type(":list")))
|
