mirror/v
1
0
Fork 0
mirror of https://github.com/vlang/v.git synced 2023-08-10 21:13:21 +03:00
Code Issues Projects Releases Wiki Activity

parser: make p.opt()? work for methods

Browse Source
This commit is contained in:
ʇʞʌp
2019-11-25 22:04:59 -08:00
committed by Alexander Medvednikov
parent 385c045e5a
commit 79a02a4c09
3 changed files with 21 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
vlib/compiler/gen_c.v
View File

@ -144,6 +144,21 @@ fn (p mut Parser) gen_handle_option_or_else(_typ, name string, fn_call_ph int) s
return typ
}
// `files := os.ls('.')?`
fn (p mut Parser) gen_handle_question_suffix(f Fn, ph int) string {
if p.cur_fn.name != 'main__main' {
p.error('`func()?` syntax can only be used inside `fn main()` for now')
}
p.check(.question)
tmp := p.get_tmp()
p.cgen.set_placeholder(ph, '$f.typ $tmp = ')
p.genln(';')
p.genln('if (!${tmp}.ok) v_panic(${tmp}.error);')
typ := f.typ[7..] // option_xxx
p.gen('*($typ*) ${tmp}.data;')
return typ
}
fn types_to_c(types []Type, table &Table) string {
mut sb := strings.new_builder(10)
for t in types {