blob: 7b2c70f793d40b29d82c8ed2c6abbfc81210f150 (
plain) (
blame)
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
|
template withOpenFile(f: expr, filename: string, mode: TFileMode,
actions: stmt): stmt =
block:
var f: TFile
if open(f, filename, mode):
try:
actions
finally:
close(f)
else:
quit("cannot open for writing: " & filename)
withOpenFile(txt, "ttempl3.txt", fmWrite):
writeln(txt, "line 1")
txt.writeln("line 2")
# Test zero argument template:
template ha: expr = myVar[0]
var
myVar: array[0..1, int]
ha = 1
echo(ha)
# Test identifier generation:
template prefix(name: expr): expr = `"hu" name`
var `hu "XYZ"` = "yay"
echo prefix(XYZ)
template typedef(name: expr, typ: typeDesc) =
type
`T name`* = typ
`P name`* = ref `T name`
typedef(myint, int)
var x: PMyInt
|