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cgen: auto initialize chan that are struct elements (#8541)

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Uwe Krüger 2021-02-04 00:07:20 +01:00 committed by GitHub
parent f013e65670
commit 112c652ace
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2 changed files with 18 additions and 0 deletions
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14
vlib/sync/struct_chan_init_test.v Normal file
View File

@ -0,0 +1,14 @@
struct Abc {
ch chan int
}
fn f(st Abc) {
st.ch <- 47
}
fn test_chan_init() {
st := Abc{}
go f(st)
i := <-st.ch
assert i == 47
}

4
vlib/v/gen/c/cgen.v
View File

@ -5732,6 +5732,10 @@ fn (mut g Gen) type_default(typ_ table.Type) string {
'rune' { return '0' } 'rune' { return '0' }
else {} else {}
} }
if sym.kind == .chan {
elemtypstr := g.typ(sym.chan_info().elem_type)
return 'sync__new_channel_st(0, sizeof($elemtypstr))'
}
return match sym.kind { return match sym.kind {
.interface_, .sum_type, .array_fixed, .multi_return { '{0}' } .interface_, .sum_type, .array_fixed, .multi_return { '{0}' }
.alias { g.type_default((sym.info as table.Alias).parent_type) } .alias { g.type_default((sym.info as table.Alias).parent_type) }