| ... | ... | @@ -783,7 +783,48 @@ fn renderExpression(r: *Render, node: Ast.Node.Index, space: Space) Error!void { |
| 783 | 783 | => { |
| 784 | 784 | var buf: [2]Ast.Node.Index = undefined; |
| 785 | 785 | const params = tree.builtinCallParams(&buf, node).?; |
| 786 | | return renderBuiltinCall(r, tree.nodeMainToken(node), params, space); |
| 786 | var builtin_token = tree.nodeMainToken(node); |
| 787 | |
| 788 | canonicalize: { |
| 789 | if (params.len != 1) break :canonicalize; |
| 790 | |
| 791 | const CastKind = enum { |
| 792 | ptrCast, |
| 793 | alignCast, |
| 794 | addrSpaceCast, |
| 795 | constCast, |
| 796 | volatileCast, |
| 797 | }; |
| 798 | const kind = meta.stringToEnum(CastKind, tree.tokenSlice(builtin_token)[1..]) orelse break :canonicalize; |
| 799 | |
| 800 | var cast_map = std.EnumMap(CastKind, Ast.TokenIndex).init(.{}); |
| 801 | cast_map.put(kind, builtin_token); |
| 802 | |
| 803 | var casts_before: usize = 0; |
| 804 | if (builtin_token >= 2) { |
| 805 | var prev_builtin_token = builtin_token - 2; |
| 806 | while (tree.tokenTag(prev_builtin_token) == .builtin) : (prev_builtin_token -= 2) { |
| 807 | const prev_kind = meta.stringToEnum(CastKind, tree.tokenSlice(prev_builtin_token)[1..]) orelse break; |
| 808 | if (cast_map.contains(prev_kind)) break :canonicalize; |
| 809 | cast_map.put(prev_kind, prev_builtin_token); |
| 810 | casts_before += 1; |
| 811 | } |
| 812 | } |
| 813 | |
| 814 | var next_builtin_token = builtin_token + 2; |
| 815 | while (tree.tokenTag(next_builtin_token) == .builtin) : (next_builtin_token += 2) { |
| 816 | const next_kind = meta.stringToEnum(CastKind, tree.tokenSlice(next_builtin_token)[1..]) orelse break; |
| 817 | if (cast_map.contains(next_kind)) break :canonicalize; |
| 818 | cast_map.put(next_kind, next_builtin_token); |
| 819 | } |
| 820 | |
| 821 | var it = cast_map.iterator(); |
| 822 | builtin_token = it.next().?.value.*; |
| 823 | while (casts_before > 0) : (casts_before -= 1) { |
| 824 | builtin_token = it.next().?.value.*; |
| 825 | } |
| 826 | } |
| 827 | return renderBuiltinCall(r, builtin_token, params, space); |
| 787 | 828 | }, |
| 788 | 829 | |
| 789 | 830 | .fn_proto_simple, |
Justus Klausecker <justus@klausecker.de> 2025-08-03 14:53:33+02:00
lib