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v/vlib/compiler/asm.v
Alexander Medvednikov 6210984c97 run vfmt
2019-12-20 02:09:56 +03:00

36 lines
731 B
V

// Copyright (c) 2019 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
module compiler
fn (p mut Parser) inline_asm() {
if !p.inside_unsafe {
p.error('asm() needs to be run inside `unsafe {}`')
}
p.next()
p.check(.lcbr)
s := p.check_string()
p.genln('asm("$s"')
for p.tok == .str {
p.genln('"$p.lit"')
p.next()
}
for p.tok == .colon {
p.next()
arg := p.check_string()
p.gen(': "$arg"')
if p.tok == .lpar {
p.next()
var_name := p.check_name()
if !p.known_var(var_name) {
p.error('unknown variable `$var_name`')
}
p.check(.rpar)
p.genln('($var_name)')
}
}
p.genln(');')
p.check(.rcbr)
}