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wasm linker: fix @tagName for auto-numbered non-exhaustive enums

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This commit is contained in:
Andrew Kelley 2025-01-13 17:52:39 -08:00
parent cde84c8795
commit 0cf163089e
1 changed files with 4 additions and 3 deletions
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7
src/link/Wasm/Flush.zig
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@ -1909,14 +1909,15 @@ fn emitTagNameFunction(
const zcu = comp.zcu.?;
const ip = &zcu.intern_pool;
const enum_type = ip.loadEnumType(enum_type_ip);
const tag_values = enum_type.values.get(ip);
try code.ensureUnusedCapacity(gpa, 7 * 5 + 6 + 1 * 6);
appendReservedUleb32(code, 0); // no locals
const slice_abi_size = 8;
const encoded_alignment = @ctz(@as(u32, 4));
if (enum_type.tag_mode == .auto) {
// Then it's a direct table lookup.
if (tag_values.len == 0) {
// Then it's auto-numbered and therefore a direct table lookup.
code.appendAssumeCapacity(@intFromEnum(std.wasm.Opcode.local_get));
appendReservedUleb32(code, 0);
@ -1948,7 +1949,7 @@ fn emitTagNameFunction(
code.appendAssumeCapacity(@intFromEnum(std.wasm.Opcode.block));
code.appendAssumeCapacity(@intFromEnum(outer_block_type));
for (enum_type.values.get(ip), 0..) |tag_value, tag_index| {
for (tag_values, 0..) |tag_value, tag_index| {
// block for this if case
code.appendAssumeCapacity(@intFromEnum(std.wasm.Opcode.block));
code.appendAssumeCapacity(@intFromEnum(std.wasm.BlockType.empty));