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Revert "cgen: fix sumtype as cast with calling twice (fix #17156) (#17183)"

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This reverts commit 90ae3c82c9.
This commit is contained in:
Delyan Angelov 2023-02-02 10:49:15 +02:00
parent 90ae3c82c9
commit 6572d597f9
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GPG Key ID: 66886C0F12D595ED
3 changed files with 16 additions and 75 deletions
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1
cmd/tools/vtest-self.v
View File

@ -230,7 +230,6 @@ const (
'do_not_remove',
'vlib/v/tests/const_fixed_array_containing_references_to_itself_test.v', // error C2099: initializer is not a constant
'vlib/v/tests/const_and_global_with_same_name_test.v', // error C2099: initializer is not a constant
'vlib/v/tests/sumtype_as_cast_test.v', // error: Compound statement expression cannot support
]
skip_on_windows = [
'do_not_remove',

72
vlib/v/gen/c/cgen.v
View File

@ -6088,63 +6088,23 @@ fn (mut g Gen) as_cast(node ast.AsCast) {
mut expr_type_sym := g.table.sym(g.unwrap_generic(node.expr_type))
if mut expr_type_sym.info is ast.SumType {
dot := if node.expr_type.is_ptr() { '->' } else { '.' }
$if !msvc {
if node.expr is ast.CallExpr {
tmp_var := g.new_tmp_var()
expr_styp := g.typ(node.expr_type)
g.write('({ ${expr_styp} ${tmp_var} = ')
g.expr(node.expr)
g.write('; ')
if sym.info is ast.FnType {
g.write('/* as */ (${styp})__as_cast(')
} else {
g.write('/* as */ *(${styp}*)__as_cast(')
}
g.write(tmp_var)
g.write(dot)
g.write('_${sym.cname},')
g.write(tmp_var)
g.write(dot)
sidx := g.type_sidx(unwrapped_node_typ)
g.write('_typ, ${sidx}); }) /*expected idx: ${sidx}, name: ${sym.name} */ ')
} else {
if sym.info is ast.FnType {
g.write('/* as */ (${styp})__as_cast(')
} else {
g.write('/* as */ *(${styp}*)__as_cast(')
}
g.write('(')
g.expr(node.expr)
g.write(')')
g.write(dot)
g.write('_${sym.cname},')
g.write('(')
g.expr(node.expr)
g.write(')')
g.write(dot)
// g.write('typ, /*expected:*/$node.typ)')
sidx := g.type_sidx(unwrapped_node_typ)
g.write('_typ, ${sidx}) /*expected idx: ${sidx}, name: ${sym.name} */ ')
}
} $else {
if sym.info is ast.FnType {
g.write('/* as */ (${styp})__as_cast(')
} else {
g.write('/* as */ *(${styp}*)__as_cast(')
}
g.write('(')
g.expr(node.expr)
g.write(')')
g.write(dot)
g.write('_${sym.cname},')
g.write('(')
g.expr(node.expr)
g.write(')')
g.write(dot)
// g.write('typ, /*expected:*/$node.typ)')
sidx := g.type_sidx(unwrapped_node_typ)
g.write('_typ, ${sidx}) /*expected idx: ${sidx}, name: ${sym.name} */ ')
if sym.info is ast.FnType {
g.write('/* as */ (${styp})__as_cast(')
} else {
g.write('/* as */ *(${styp}*)__as_cast(')
}
g.write('(')
g.expr(node.expr)
g.write(')')
g.write(dot)
g.write('_${sym.cname},')
g.write('(')
g.expr(node.expr)
g.write(')')
g.write(dot)
// g.write('typ, /*expected:*/$node.typ)')
sidx := g.type_sidx(unwrapped_node_typ)
g.write('_typ, ${sidx}) /*expected idx: ${sidx}, name: ${sym.name} */ ')
// fill as cast name table
for variant in expr_type_sym.info.variants {

18
vlib/v/tests/sumtype_as_cast_test.v
View File

@ -1,18 +0,0 @@
type Sum = int | string
struct Count {
mut:
count int
}
fn (mut c Count) ret_sum() Sum {
c.count++
return c.count
}
fn test_sumtype_as_cast() {
mut cnt := Count{22}
_ := cnt.ret_sum() as int
println(cnt)
assert cnt.count == 23
}