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cgen,ast: fix interface conversion codegen race issue (fix #22640, #17943) (#22655)

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Felipe Pena 2024-10-26 02:26:41 -03:00 committed by GitHub
parent be0de59076
commit 067c5b6486
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GPG Key ID: B5690EEEBB952194
3 changed files with 20 additions and 17 deletions
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2
vlib/v/ast/types.v
View File

@ -191,7 +191,7 @@ pub mut:
methods []Fn
embeds []Type
// `I1 is I2` conversions
conversions map[int][]Type
conversions shared map[int][]Type
// generic interface support
is_generic bool
generic_types []Type

10
vlib/v/gen/c/cgen.v
View File

@ -7598,10 +7598,12 @@ fn (mut g Gen) as_cast(node ast.AsCast) {
g.write(')')
mut info := expr_type_sym.info as ast.Interface
if node.typ !in info.conversions {
left_variants := g.table.iface_types[expr_type_sym.name]
right_variants := g.table.iface_types[sym.name]
info.conversions[node.typ] = left_variants.filter(it in right_variants)
lock info.conversions {
if node.typ !in info.conversions {
left_variants := g.table.iface_types[expr_type_sym.name]
right_variants := g.table.iface_types[sym.name]
info.conversions[node.typ] = left_variants.filter(it in right_variants)
}
}
expr_type_sym.info = info
} else if mut expr_type_sym.info is ast.Interface && node.expr_type != node.typ {

25
vlib/v/gen/c/infix.v
View File

@ -776,18 +776,19 @@ fn (mut g Gen) gen_interface_is_op(node ast.InfixExpr) {
right_sym := g.table.sym(node.right_type)
mut info := left_sym.info as ast.Interface
common_variants := info.conversions[node.right_type] or {
left_variants := g.table.iface_types[left_sym.name]
right_variants := g.table.iface_types[right_sym.name]
c := left_variants.filter(it in right_variants)
info.conversions[node.right_type] = c
c
}
left_sym.info = info
if common_variants.len == 0 {
g.write('false')
return
lock info.conversions {
common_variants := info.conversions[node.right_type] or {
left_variants := g.table.iface_types[left_sym.name]
right_variants := g.table.iface_types[right_sym.name]
c := left_variants.filter(it in right_variants)
info.conversions[node.right_type] = c
c
}
left_sym.info = info
if common_variants.len == 0 {
g.write('false')
return
}
}
g.write('I_${left_sym.cname}_is_I_${right_sym.cname}(')
if node.left_type.is_ptr() {