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Parse opacity (and drop on the floor), so std.rc parses now.

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This commit is contained in:
Graydon Hoare 2011-03-07 15:38:20 -08:00
parent 3869b3bfe4
commit df3038e68b
2 changed files with 21 additions and 0 deletions
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5
src/comp/front/ast.rs
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@ -83,6 +83,11 @@ tag mutability {
imm;
}
tag opacity {
op_abstract;
op_transparent;
}
tag layer {
layer_value;
layer_state;

16
src/comp/front/parser.rs
View file

@ -1830,6 +1830,8 @@ impure fn parse_item_native_fn(parser p, ast.effect eff) -> @ast.native_item {
impure fn parse_native_item(parser p) -> @ast.native_item {
let ast.effect eff = parse_effect(p);
let ast.opacity opa = parse_opacity(p);
let ast.layer lyr = parse_layer(p);
alt (p.peek()) {
case (token.TYPE) {
ret parse_item_native_type(p);
@ -1978,6 +1980,19 @@ impure fn parse_item_tag(parser p) -> @ast.item {
ret @spanned(lo, hi, item);
}
impure fn parse_opacity(parser p) -> ast.opacity {
alt (p.peek()) {
case (token.ABS) {
p.bump();
ret ast.op_abstract;
}
case (_) {
ret ast.op_transparent;
}
}
fail;
}
impure fn parse_layer(parser p) -> ast.layer {
alt (p.peek()) {
case (token.STATE) {
@ -2033,6 +2048,7 @@ fn peeking_at_item(parser p) -> bool {
impure fn parse_item(parser p) -> @ast.item {
let ast.effect eff = parse_effect(p);
let ast.opacity opa = parse_opacity(p);
let ast.layer lyr = parse_layer(p);
alt (p.peek()) {