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checker: return none if type is 0 in ensure_type_exists (#9820)

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Ned Palacios 2021-04-20 17:11:41 +08:00 committed by GitHub
parent 9d8bda9eaf
commit 254d247e80
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1 changed files with 5 additions and 12 deletions
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17
vlib/v/checker/checker.v
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@ -353,18 +353,14 @@ pub fn (mut c Checker) interface_decl(decl ast.InterfaceDecl) {
c.check_valid_pascal_case(decl.name, 'interface name', decl.pos)
for method in decl.methods {
c.check_valid_snake_case(method.name, 'method name', method.pos)
if method.return_type != ast.Type(0) {
c.ensure_type_exists(method.return_type, method.return_type_pos) or { return }
}
c.ensure_type_exists(method.return_type, method.return_type_pos) or { return }
for param in method.params {
c.ensure_type_exists(param.typ, param.pos) or { return }
}
}
for i, field in decl.fields {
c.check_valid_snake_case(field.name, 'field name', field.pos)
if field.typ != ast.Type(0) {
c.ensure_type_exists(field.typ, field.pos) or { return }
}
c.ensure_type_exists(field.typ, field.pos) or { return }
for j in 0 .. i {
if field.name == decl.fields[j].name {
c.error('field name `$field.name` duplicate', field.pos)
@ -3312,16 +3308,12 @@ pub fn (mut c Checker) array_init(mut array_init ast.ArrayInit) ast.Type {
if array_init.has_len {
c.ensure_sumtype_array_has_default_value(array_init)
}
if array_init.elem_type != 0 {
c.ensure_type_exists(array_init.elem_type, array_init.elem_type_pos) or {}
}
c.ensure_type_exists(array_init.elem_type, array_init.elem_type_pos) or {}
return array_init.typ
}
if array_init.is_fixed {
c.ensure_sumtype_array_has_default_value(array_init)
if array_init.elem_type != 0 {
c.ensure_type_exists(array_init.elem_type, array_init.elem_type_pos) or {}
}
c.ensure_type_exists(array_init.elem_type, array_init.elem_type_pos) or {}
}
// a = []
if array_init.exprs.len == 0 {
@ -6667,6 +6659,7 @@ fn (mut c Checker) trace(fbase string, message string) {
fn (mut c Checker) ensure_type_exists(typ ast.Type, pos token.Position) ? {
if typ == 0 {
c.error('unknown type', pos)
return none
}
sym := c.table.get_type_symbol(typ)
match sym.kind {