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parser: multi-level pointers

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BigBlack 2019-11-11 23:43:22 +08:00 • committed by Alexander Medvednikov
parent de5b4f0497
commit 0ab09a57f7
5 changed files with 66 additions and 18 deletions
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19
vlib/compiler/parser.v
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@ -1461,7 +1461,7 @@ fn (p mut Parser) get_struct_type(name_ string, is_c bool, is_ptr bool) string {
return p.struct_init(name)
}
fn (p mut Parser) get_var_type(name string, is_ptr bool, is_deref bool) string {
fn (p mut Parser) get_var_type(name string, is_ptr bool, deref_nr int) string {
v := p.find_var_check_new_var(name) or { return "" }
if name == '_' {
p.error('cannot use `_` as value')
@ -1469,9 +1469,11 @@ fn (p mut Parser) get_var_type(name string, is_ptr bool, is_deref bool) string {
if is_ptr {
p.gen('&')
}
else if is_deref {
p.gen('*')
}
else if deref_nr > 0 {
for _ in 0..deref_nr {
p.gen('*')
}
}
if p.pref.autofree && v.typ == 'string' && v.is_arg &&
p.assigned_type == 'string' {
p.warn('setting moved ' + v.typ)
@ -1479,7 +1481,7 @@ fn (p mut Parser) get_var_type(name string, is_ptr bool, is_deref bool) string {
}
mut typ := p.var_expr(v)
// *var
if is_deref {
if deref_nr > 0 {
/*
if !p.inside_unsafe {
p.error('dereferencing can only be done inside an `unsafe` block')
@ -1489,8 +1491,11 @@ fn (p mut Parser) get_var_type(name string, is_ptr bool, is_deref bool) string {
println('name="$name", t=$v.typ')
p.error('dereferencing requires a pointer, but got `$typ`')
}
typ = typ.replace('ptr', '')// TODO
typ = typ.replace('*', '')// TODO
for _ in 0..deref_nr {
typ = typ.replace_once('ptr', '')// TODO
typ = typ.replace_once('*', '')// TODO
}
}
// &var
else if is_ptr {