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sum types: allow modification in match

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This commit is contained in:
Alexander Medvednikov
2020-02-03 09:11:10 +01:00
parent d918903252
commit 34e9eb32bb
5 changed files with 47 additions and 21 deletions
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11
vlib/compiler/if_match.v
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@ -139,7 +139,9 @@ fn (p mut Parser) match_statement(is_expr bool) string {
// println('got child $sum_child_type')
p.register_var(Var{
name: 'it'
typ: sum_child_type
typ: sum_child_type+'*'
is_mut: true
ptr: true
})
}
else {
@ -189,7 +191,8 @@ fn (p mut Parser) match_statement(is_expr bool) string {
p.check(.lcbr)
p.genln('{ ')
if is_sum_type {
p.genln(' $sum_child_type it = *($sum_child_type*)$tmp_var .obj ;')
//p.genln(' $sum_child_type it = *($sum_child_type*)$tmp_var .obj ;')
p.genln(' $sum_child_type* it = ($sum_child_type*)${tmp_var}.obj ;')
}
p.statements()
all_cases_return = all_cases_return && p.returns
@ -261,12 +264,12 @@ fn (p mut Parser) if_statement(is_expr bool, elif_depth int) string {
name: var_name
typ: typ
is_mut: false // TODO
is_used: true // TODO
// is_alloc: p.is_alloc || typ.starts_with('array_')
// line_nr: p.tokens[ var_token_idx ].line_nr
// token_idx: var_token_idx
})
p.statements()
p.close_scope()