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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
discard """
output: '''
@[]
5
0
a
hi
Hello, World!
(e: 42)
hey
'''
"""
import macros, json
block t2057:
proc mpf_get_d(x: int): float = float(x)
proc mpf_cmp_d(a: int; b: float): int = 0
template toFloatHelper(result, tooSmall, tooLarge: untyped) =
result = mpf_get_d(a)
if result == 0.0 and mpf_cmp_d(a,0.0) != 0:
tooSmall
if result == Inf:
tooLarge
proc toFloat(a: int): float =
toFloatHelper(result) do:
raise newException(ValueError, "number too small")
do:
raise newException(ValueError, "number too large")
doAssert toFloat(8) == 8.0
import sequtils, os
block t2629:
template glob_rst(basedir: string = ""): untyped =
if baseDir.len == 0:
to_seq(walk_files("*.rst"))
else:
to_seq(walk_files(basedir/"*.rst"))
let rst_files = concat(glob_rst(), glob_rst("docs"))
when true: echo rst_files
block t5417:
macro genBody: untyped =
let sbx = genSym(nskLabel, "test")
when true:
result = quote do:
block `sbx`:
break `sbx`
else:
template foo(s1, s2) =
block s1:
break s2
result = getAst foo(sbx, sbx)
proc test() =
genBody()
block t909:
template baz() =
proc bar() =
var x = 5
iterator foo(): int {.closure.} =
echo x
var y = foo
discard y()
macro test(): untyped =
result = getAst(baz())
test()
bar()
block t993:
type PNode = ref object of RootObj
template litNode(name, ty) =
type name = ref object of PNode
val: ty
litNode PIntNode, int
template withKey(j: JsonNode; key: string; varname,
body: untyped): typed =
if j.hasKey(key):
let varname{.inject.}= j[key]
block:
body
var j = parsejson("{\"zzz\":1}")
withkey(j, "foo", x):
echo(x)
block t1337:
template someIt(a, pred): untyped =
var it {.inject.} = 0
pred
proc aProc(n: auto) =
n.someIt(echo(it))
aProc(89)
import mlt
block t4564:
type Bar = ref object of RootObj
proc foo(a: Bar): int = 0
var a: Bar
let b = a.foo() > 0
block t8052:
type
UintImpl[N: static[int], T: SomeUnsignedInt] = object
raw_data: array[N, T]
template genLoHi(TypeImpl: untyped): untyped =
template loImpl[N: static[int], T: SomeUnsignedInt](dst: TypeImpl[N div 2, T], src: TypeImpl[N, T]) =
let halfSize = N div 2
for i in 0 ..< halfSize:
dst.raw_data[i] = src.raw_data[i]
proc lo[N: static[int], T: SomeUnsignedInt](x: TypeImpl[N,T]): TypeImpl[N div 2, T] {.inline.}=
loImpl(result, x)
genLoHi(UintImpl)
var a: UintImpl[4, uint32]
a.raw_data = [1'u32, 2'u32, 3'u32, 4'u32]
doAssert a.lo.raw_data.len == 2
doAssert a.lo.raw_data[0] == 1
doAssert a.lo.raw_data[1] == 2
block t2585:
type
RenderPass = object
state: ref int
RenderData = object
fb: int
walls: seq[RenderPass]
Mat2 = int
Vector2[T] = T
Pixels=int
template use(fb: int, st: untyped): untyped =
echo "a ", $fb
st
echo "a ", $fb
proc render(rdat: var RenderData; passes: var openarray[RenderPass]; proj: Mat2;
indexType = 1) =
for i in 0 ..< len(passes):
echo "blah ", repr(passes[i])
proc render2(rdat: var RenderData; screenSz: Vector2[Pixels]; proj: Mat2) =
use rdat.fb:
render(rdat, rdat.walls, proj, 1)
block t4292:
template foo(s: string): string = s
proc variadicProc(v: varargs[string, foo]) = echo v[0]
variadicProc("a")
block t2670:
template testTemplate(b: bool): typed =
when b:
var a = "hi"
else:
var a = 5
echo a
testTemplate(true)
block t4097:
var i {.compileTime.} = 2
template defineId(t: typedesc) =
const id {.genSym.} = i
static: inc(i)
proc idFor(T: typedesc[t]): int {.inline, raises: [].} = id
defineId(int8)
defineId(int16)
doAssert idFor(int8) == 2
doAssert idFor(int16) == 3
block t5235:
template outer(body: untyped) =
template test(val: string) =
const SomeConst: string = val
echo SomeConst
body
outer:
test("Hello, World!")
# bug #11941
type X = object
e: int
proc works(T: type X, v: auto): T = T(e: v)
template fails(T: type X, v: auto): T = T(e: v)
var
w = X.works(42)
x = X.fails(42)
echo x
import mtempl5
proc foo(): auto =
trap "foo":
echo "hey"
discard foo()
|