Nim/tests/seq/tseq.nim at devel · googol-lab/Nim

Repository navigation

History

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

discard """

output: '''

Hithere, what's your name?Hathere, what's your name?

fA13msg1falsefB14msg2truefC15msg3false

Zip: [{"Field0": 1, "Field1": 2}, {"Field0": 3, "Field1": 4}, {"Field0": 5, "Field1": 6}]

Filter Iterator: 3

Filter Iterator: 5

Filter Iterator: 7

Filter: [3, 5, 7]

FilterIt: [1, 3, 7]

Concat: [1, 3, 5, 7, 2, 4, 6]

Deduplicate: [1, 2, 3, 4, 5, 7]

@[()]

@[1, 42, 3]

2345623456

'''

"""

block tseq2:

proc `*`(a, b: seq[int]): seq[int] =

# allocate a new sequence:

newSeq(result, len(a))

# multiply two int sequences:

for i in 0..len(a)-1: result[i] = a[i] * b[i]

assert(@[1, 2, 3] * @[1, 2, 3] == @[1, 4, 9])

block tseqcon:

const nestedFixed = true

type

TRec {.final.} = object

x, y: int

s: string

seq: seq[string]

TRecSeq = seq[TRec]

proc test() =

var s, b: seq[string]

s = @[]

add(s, "Hi")

add(s, "there, ")

add(s, "what's your name?")

b = s # deep copying here!

b[0][1] = 'a'

for i in 0 .. len(s)-1:

write(stdout, s[i])

for i in 0 .. len(b)-1:

write(stdout, b[i])

when nestedFixed:

proc nested() =

var

s: seq[seq[string]]

for i in 0..10_000: # test if the garbage collector

# now works with sequences

s = @[

@["A", "B", "C", "D"],

@["E", "F", "G", "H"],

@["I", "J", "K", "L"],

@["M", "N", "O", "P"]]

test()

when nestedFixed:

nested()

echo ""

import os

block tseqcon2:

proc rec_dir(dir: string): seq[string] =

result = @[]

for kind, path in walk_dir(dir):

if kind == pcDir:

add(result, rec_dir(path))

else:

add(result, path)

block tseqtuple:

type

TMsg = tuple[

file: string,

line: int,

msg: string,

err: bool]

var s: seq[TMsg] = @[]

s.add(("fA", 13, "msg1", false))

s.add(("fB", 14, "msg2", true))

s.add(("fC", 15, "msg3", false))

for file, line, msg, err in items(s):

stdout.write(file)

stdout.write($line)

stdout.write(msg)

stdout.write($err)

echo ""

import sequtils, marshal

block tsequtils:

proc testFindWhere(item : int) : bool =

if item != 1: return true

var seq1: seq[int] = @[]

seq1.add(1)

seq1.add(3)

seq1.add(5)

seq1.add(7)

var seq2: seq[int] = @[2, 4, 6]

var final = zip(seq1, seq2)

echo "Zip: ", $$(final)

#Test findWhere as a iterator

for itms in filter(seq1, testFindWhere):

echo "Filter Iterator: ", $$(itms)

#Test findWhere as a proc

var fullseq: seq[int] = filter(seq1, testFindWhere)

echo "Filter: ", $$(fullseq)

#Test findIt as a template

var finditval: seq[int] = filterIt(seq1, it!=5)

echo "FilterIt: ", $$(finditval)

var concatseq = concat(seq1,seq2)

echo "Concat: ", $$(concatseq)

var seq3 = @[1,2,3,4,5,5,5,7]

var dedupseq = deduplicate(seq3)

echo "Deduplicate: ", $$(dedupseq)

# bug #4973

type

SomeObj = object

OtherObj = object

field: SomeObj

let aSeq = @[OtherObj(field: SomeObj())]

let someObjSeq = aSeq.mapIt(it.field)

echo someObjSeq

block tshallowseq:

proc xxx() =

var x: seq[int] = @[1, 2, 3]

var y: seq[int]

system.shallowCopy(y, x)

y[1] = 42

echo y

echo x

xxx()

block tshallowemptyseq:

proc test() =

var nilSeq: seq[int] = @[]

var emptySeq: seq[int] = newSeq[int]()

block:

var t = @[1,2,3]

shallow(nilSeq)

t = nilSeq

doAssert t == @[]

block:

var t = @[1,2,3]

shallow(emptySeq)

t = emptySeq

doAssert t == @[]

block:

var t = @[1,2,3]

shallowCopy(t, nilSeq)

doAssert t == @[]

block:

var t = @[1,2,3]

shallowCopy(t, emptySeq)

doAssert t == @[]

test()

import strutils

block ttoseq:

for x in toSeq(countup(2, 6)):

stdout.write(x)

for x in items(toSeq(countup(2, 6))):

stdout.write(x)

var y: type("a b c".split)

y = "xzy"

stdout.write("\n")

FilesExpand file tree

tseq.nim

Latest commit

History

tseq.nim

File metadata and controls