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Update core:odin for union #shared_nil

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gingerBill
2022-03-24 12:00:27 +00:00
parent 3f935bea25
commit 13cb894b30
3 changed files with 41 additions and 8 deletions
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32
core/odin/parser/parser.odin
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@@ -2630,8 +2630,9 @@ parse_operand :: proc(p: ^Parser, lhs: bool) -> ^ast.Expr {
tok := expect_token(p, .Union)
poly_params: ^ast.Field_List
align: ^ast.Expr
is_maybe: bool
is_no_nil: bool
is_maybe: bool
is_no_nil: bool
is_shared_nil: bool
if allow_token(p, .Open_Paren) {
param_count: int
@@ -2663,12 +2664,34 @@ parse_operand :: proc(p: ^Parser, lhs: bool) -> ^ast.Expr {
error(p, tag.pos, "duplicate union tag '#%s'", tag.text)
}
is_no_nil = true
case "shared_nil":
if is_shared_nil {
error(p, tag.pos, "duplicate union tag '#%s'", tag.text)
}
is_shared_nil = true
case:
error(p, tag.pos, "invalid union tag '#%s", tag.text)
}
}
p.expr_level = prev_level
if is_no_nil && is_maybe {
error(p, p.curr_tok.pos, "#maybe and #no_nil cannot be applied together");
}
if is_no_nil && is_shared_nil {
error(p, p.curr_tok.pos, "#shared_nil and #no_nil cannot be applied together");
}
if is_shared_nil && is_maybe {
error(p, p.curr_tok.pos, "#maybe and #shared_nil cannot be applied together");
}
union_kind := ast.Union_Type_Kind.Normal
switch {
case is_maybe: union_kind = .maybe
case is_no_nil: union_kind = .no_nil
case is_shared_nil: union_kind = .shared_nil
}
where_token: tokenizer.Token
where_clauses: []^ast.Expr
@@ -2699,14 +2722,15 @@ parse_operand :: proc(p: ^Parser, lhs: bool) -> ^ast.Expr {
close := expect_closing_brace_of_field_list(p)
ut := ast.new(ast.Union_Type, tok.pos, end_pos(close))
ut.poly_params = poly_params
ut.variants = variants[:]
ut.align = align
ut.where_token = where_token
ut.where_clauses = where_clauses
ut.is_maybe = is_maybe
ut.is_no_nil = is_no_nil
ut.kind = union_kind
return ut