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native gen error: unknown return type
V version: 0.2.2 6991a3c OS: Darwin 20.4.0 Darwin Kernel Version 20.4.0: Fri Mar 5 01:14:14 PST 2021; root:xnu-7195.101.1~3/RELEASE_X86_64 x86_64
What did you do? g.v
fn compute(b int) int {
return b * b
}
fn main(){
mut a := []thread int{}
for i in 1 .. 10{
a << go compute(i)
}
r := a.wait()
println(r)
}
v -native -v run g.v
What did you expect to see? no error, and can see native code.
What did you see instead?
------------------------------------------
------ imported modules: ------
['main', 'sync.threads']
-------------------------------
0.079 ms SCAN
3.983 ms PARSE
2.806 ms CHECK
0.005 ms TRANSFORM
0.001 ms Table.complete_interface_check
001000 e8 fb ef ff ff call 0
main.compute:
001005 55 push rbp
001006 48 89 e5 mov rbp, rsp
001009 48 83 ec 20 sub8 rsp,0x20
00100d c7 45 fc 00 00 00 00 mov DWORD [rbp-0x4],0 (Allocate var `b`)
001014 89 7d fc mov DWORD PTR[rbp-0x4],rdi
[/Users/wangzelong/project/v/vlib/v/gen/native/gen.v:349] node: v.ast.Return{
pos: v.token.Position{
len: 12
line_nr: 1
pos: 25
col: 1
last_line: 1
}
comments: []
exprs: [b * b]
types: [7]
}
[/Users/wangzelong/project/v/vlib/v/gen/native/gen.v:350] node.types: [7]
native gen error: unknown return type
Threads are not yet supported in the native backend. But the error is clearly misleading and 'de'buggy. So I pushed this PR https://github.com/vlang/v/pull/11253 improving error messages to avoid comptime and thready code to go further and report the error accordingly
I just want to see how to implementation the thread in V, Its underlying layer seems to be pthread； Is his implementation similar to coroutine? Is it similar to golang's GMP model?
Threads are not yet supported in the native backend. But the error is clearly misleading and 'de'buggy. So I pushed this PR #11253 improving error messages to avoid comptime and thready code to go further and report the error accordingly