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cgen: clean and improve need_tmp_var_in_match() (#16451)

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yuyi 2022-11-17 15:08:45 +08:00 committed by GitHub
parent 37700502f5
commit cb9e945aa0
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1 changed files with 4 additions and 8 deletions
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12
vlib/v/gen/c/match.v
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@ -7,18 +7,14 @@ import v.ast
fn (mut g Gen) need_tmp_var_in_match(node ast.MatchExpr) bool { fn (mut g Gen) need_tmp_var_in_match(node ast.MatchExpr) bool {
if node.is_expr && node.return_type != ast.void_type && node.return_type != 0 { if node.is_expr && node.return_type != ast.void_type && node.return_type != 0 {
cond_sym := g.table.final_sym(node.cond_type) if g.table.sym(node.return_type).kind in [.sum_type, .multi_return]
sym := g.table.sym(node.return_type) || node.return_type.has_flag(.optional) || node.return_type.has_flag(.result) {
if g.table.type_kind(node.return_type) == .sum_type {
return true return true
} }
if node.return_type.has_flag(.optional) || node.return_type.has_flag(.result) { if g.table.final_sym(node.cond_type).kind == .enum_ && node.branches.len > 5 {
return true return true
} }
if sym.kind == .multi_return { if g.need_tmp_var_in_expr(node.cond) {
return false
}
if cond_sym.kind == .enum_ && node.branches.len > 5 {
return true return true
} }
for branch in node.branches { for branch in node.branches {