29 lines
316 B
V
29 lines
316 B
V
pub interface Reader{
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mut:
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read(mut buf []u8) ?int
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}
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pub interface Write{
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mut:
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write(buf []u8) ?int
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}
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pub interface ReaderWriter{
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Reader
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Write
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}
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struct Moon{}
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struct Mars{}
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struct Venus{}
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type World = Mars | Moon | Venus
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fn main(){
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sum := World(Moon{})
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assert sum.type_name() == 'Moon'
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println(sum)
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} |