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Refactor ast.local to make room for initialization via recv

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This commit is contained in:
Brian Anderson 2011-03-24 21:04:29 -04:00 • committed by Graydon Hoare
parent ef1bcdea70
commit 71f058499a
6 changed files with 29 additions and 17 deletions
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10
src/comp/front/ast.rs
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@ -194,10 +194,18 @@ tag stmt_ {
stmt_crate_directive(@crate_directive);
}
tag init_op {
init_assign;
init_recv;
}
type initializer = rec(init_op op,
@expr expr);
type local = rec(option.t[@ty] ty,
bool infer,
ident ident,
option.t[@expr] init,
option.t[initializer] init,
def_id id,
ann ann);

7
src/comp/front/parser.rs
View file

@ -1364,13 +1364,14 @@ impure fn parse_expr_inner(parser p) -> @ast.expr {
}
}
impure fn parse_initializer(parser p) -> option.t[@ast.expr] {
impure fn parse_initializer(parser p) -> option.t[ast.initializer] {
if (p.peek() == token.EQ) {
p.bump();
ret some(parse_expr(p));
ret some(rec(op = ast.init_assign,
expr = parse_expr(p)));
}
ret none[@ast.expr];
ret none[ast.initializer];
}
impure fn parse_pat(parser p) -> @ast.pat {