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parser: fix `for i, mut val in vals {; examples: vfmt flappybird

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This commit is contained in:
Alexander Medvednikov
2020-12-27 12:02:01 +01:00
parent bcdf3ca0cf
commit 0d43ff2453
4 changed files with 96 additions and 129 deletions
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9
vlib/v/parser/for.v
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@@ -80,8 +80,8 @@ fn (mut p Parser) for_stmt() ast.Stmt {
return for_c_stmt
} else if p.peek_tok.kind in [.key_in, .comma] ||
(p.tok.kind == .key_mut && p.peek_tok2.kind in [.key_in, .comma]) {
// `for i in vals`, `for i in start .. end`
val_is_mut := p.tok.kind == .key_mut
// `for i in vals`, `for i in start .. end`, `for mut user in users`, `for i, mut user in users`
mut val_is_mut := p.tok.kind == .key_mut
if val_is_mut {
p.next()
}
@@ -91,6 +91,11 @@ fn (mut p Parser) for_stmt() ast.Stmt {
mut val_var_name := p.check_name()
if p.tok.kind == .comma {
p.next()
if p.tok.kind == .key_mut {
// `for i, mut user in users {`
p.next()
val_is_mut = true
}
key_var_name = val_var_name
val_var_pos = p.tok.position()
val_var_name = p.check_name()