mirror/zig
1
0
Fork 0
mirror of https://github.com/ziglang/zig.git synced 2026-02-14 21:38:33 +00:00
Code Issues Packages Projects Releases Wiki Activity

link.Wasm.Feature: Make fromCpuFeature() and toCpuFeature() less cute.

Browse Source 
This is more verbose, but at least we now get a compile error instead of UB when
a new feature is added to std.Target.wasm.Feature but not to link.Wasm.Feature.
This commit is contained in:
Alex Rønne Petersen 2025-01-22 21:15:25 +01:00
parent 35e804bfb8
commit 68c6a88770
No known key found for this signature in database
1 changed files with 35 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
src/link/Wasm.zig
View File

@ -2836,14 +2836,44 @@ pub const Feature = packed struct(u8) {
@"shared-mem",
pub fn fromCpuFeature(feature: std.Target.wasm.Feature) Tag {
return @enumFromInt(@intFromEnum(feature));
return switch (feature) {
.atomics => .atomics,
.bulk_memory => .@"bulk-memory",
.exception_handling => .@"exception-handling",
.extended_const => .@"extended-const",
.half_precision => .@"half-precision",
.multimemory => .multimemory,
.multivalue => .multivalue,
.mutable_globals => .@"mutable-globals",
.nontrapping_bulk_memory_len0 => .@"nontrapping-bulk-memory-len0", // Zig extension.
.nontrapping_fptoint => .@"nontrapping-fptoint",
.reference_types => .@"reference-types",
.relaxed_simd => .@"relaxed-simd",
.sign_ext => .@"sign-ext",
.simd128 => .simd128,
.tail_call => .@"tail-call",
};
}
pub fn toCpuFeature(tag: Tag) ?std.Target.wasm.Feature {
return if (@intFromEnum(tag) < @typeInfo(std.Target.wasm.Feature).@"enum".fields.len)
@enumFromInt(@intFromEnum(tag))
else
null;
return switch (tag) {
.atomics => .atomics,
.@"bulk-memory" => .bulk_memory,
.@"exception-handling" => .exception_handling,
.@"extended-const" => .extended_const,
.@"half-precision" => .half_precision,
.multimemory => .multimemory,
.multivalue => .multivalue,
.@"mutable-globals" => .mutable_globals,
.@"nontrapping-bulk-memory-len0" => .nontrapping_bulk_memory_len0, // Zig extension.
.@"nontrapping-fptoint" => .nontrapping_fptoint,
.@"reference-types" => .reference_types,
.@"relaxed-simd" => .relaxed_simd,
.@"sign-ext" => .sign_ext,
.simd128 => .simd128,
.@"tail-call" => .tail_call,
.@"shared-mem" => null, // Linker-only feature.
};
}
pub const format = @compileError("use @tagName instead");