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checker: fix inability to access aliased struct fields (#5861)

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XeGrox 2020-07-18 19:58:16 +08:00 committed by GitHub
parent 74d70b8719
commit e5a508c0d7
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2 changed files with 17 additions and 1 deletions
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6
vlib/v/checker/checker.v
View File

@ -707,7 +707,11 @@ fn (mut c Checker) fail_if_immutable(expr ast.Expr) (string, token.Position) {
c.error('0 type in SelectorExpr', expr.pos)
return '', pos
}
typ_sym := c.table.get_type_symbol(c.unwrap_generic(expr.expr_type))
mut typ_sym := c.table.get_type_symbol(c.unwrap_generic(expr.expr_type))
if typ_sym.kind == .alias {
alias_info := typ_sym.info as table.Alias
typ_sym = c.table.get_type_symbol(alias_info.parent_type)
}
match typ_sym.kind {
.struct_ {
struct_info := typ_sym.info as table.Struct

12
vlib/v/tests/type_alias_test.v
View File

@ -23,3 +23,15 @@ fn test_type_alias_v2() {
g := Myf64_2(10.4)
assert g + 0.5 == 10.9
}
struct Mystruct {
mut:
i int
}
type Mystruct_2 Mystruct
fn test_type_alias_struct() {
mut s := Mystruct_2{}
s.i = 10
assert s.i + 100 == 110
}