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require else in match statements

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This commit is contained in:
Alexander Medvednikov
2019-12-07 16:58:43 +03:00
parent a594e009f2
commit 2fb7fba856
11 changed files with 69 additions and 34 deletions
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8
vlib/compiler/if_match.v
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@ -27,11 +27,9 @@ fn (p mut Parser) match_statement(is_expr bool) string {
// stores typ of resulting variable
mut res_typ := ''
defer {
p.check(.rcbr)
}
for p.tok != .rcbr {
if p.tok == .key_else {
p.check(.key_else)
@ -206,10 +204,10 @@ fn (p mut Parser) match_statement(is_expr bool) string {
p.fgen_nl()
}
if is_expr {
//if is_expr {
// we get here if no else found, ternary requires "else" branch
p.error('Match expression requires "else"')
}
p.warn('match expression requires `else`')
//}
p.returns = false // only get here when no default, so return is not guaranteed