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Issue a warning on packed record member access #800

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merged 6 commits into from
Nov 12, 2024

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wrongnull
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Closes #788

src/aro/Parser.zig Outdated Show resolved Hide resolved
@@ -21,6 +21,10 @@ pub const Message = struct {

pub const Extra = union {
str: []const u8,
record_member: struct {
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This makes the Extra union 32 bytes instead of 16 (on a 64-bit system). We should use something like what is done in errDeprecated or valueChangedStr - write the string to p.strings, dupe it, and then just use the .str Extra field

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Done

wrongnull and others added 2 commits November 10, 2024 19:52
Co-authored-by: Evan Haas <evan@lagerdata.com>
@@ -7226,8 +7241,7 @@ fn unExpr(p: *Parser) Error!Result {
const lhs_ty = p.nodes.items(.ty)[@intFromEnum(data.member.lhs)];
if (lhs_ty.hasAttribute(.@"packed")) {
const record = lhs_ty.getRecord().?;
const mapper = p.comp.string_interner.getSlowTypeMapper();
const extra = Diagnostics.Message.Extra{ .record_member = .{ .record = mapper.lookup(record.name), .member = mapper.lookup(record.fields[data.member.index].name) } };
const extra = Diagnostics.Message.Extra{ .str = try p.packedMemberAccessStr(record.name, record.fields[data.member.index].name) };
try p.errExtra(.packed_member_address, orig_tok_i, extra);
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You can use the errStr function here with the string

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@Vexu Vexu merged commit 7a40472 into Vexu:master Nov 12, 2024
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Vexu commented Nov 12, 2024

Thanks!

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Add diagnostic for taking address of packed record member
3 participants