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compiler: no need to optimize println on Windows 

this fixes string interpolation
pull/1394/head
Vitaly Takmazov 2019-07-31 10:51:24 +03:00 committed by Alexander Medvednikov
parent e592485395
commit f3d6bc9146
2 changed files with 15 additions and 11 deletions
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12
compiler/fn.v
View File

@ -808,11 +808,13 @@ fn (p mut Parser) fn_call_args(f mut Fn) *Fn {
// (If we don't check for void, then V will compile `println(func())`)
if i == 0 && f.name == 'println' && typ != 'string' && typ != 'void' {
T := p.table.find_type(typ)
fmt := p.typ_to_fmt(typ, 0)
if fmt != '' {
p.cgen.resetln(p.cgen.cur_line.replace('println (', '/*opt*/printf ("' + fmt + '\\n", '))
continue
}
$if !windows {
fmt := p.typ_to_fmt(typ, 0)
if fmt != '' {
p.cgen.resetln(p.cgen.cur_line.replace('println (', '/*opt*/printf ("' + fmt + '\\n", '))
continue
}
}
if typ.ends_with('*') {
p.cgen.set_placeholder(ph, 'ptr_str(')
p.gen(')')

14
compiler/parser.v
View File

@ -2395,12 +2395,14 @@ fn (p mut Parser) string_expr() {
return
}
// println: don't allocate a new string, just print it.
cur_line := p.cgen.cur_line.trim_space()
if cur_line.contains('println (') && p.tok != .plus &&
!cur_line.contains('string_add') && !cur_line.contains('eprintln') {
p.cgen.resetln(cur_line.replace('println (', 'printf('))
p.gen('$format\\n$args')
return
$if !windows {
cur_line := p.cgen.cur_line.trim_space()
if cur_line.contains('println (') && p.tok != .plus &&
!cur_line.contains('string_add') && !cur_line.contains('eprintln') {
p.cgen.resetln(cur_line.replace('println (', 'printf('))
p.gen('$format\\n$args')
return
}
}
// '$age'! means the user wants this to be a tmp string (uses global buffer, no allocation,
// won't be used again)