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std.array_hash_map: remove meta context verification

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The zig way is to let the compiler provide errors, rather than trying to
implement the compiler in the standard library.

I played around with this and found the compile errors to be easier to
comprehend without this logic.
This commit is contained in:
Andrew Kelley 2024-03-21 19:33:43 -07:00
parent 1e46e36eac
commit ebec7336e2
1 changed files with 5 additions and 20 deletions
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25
lib/std/array_hash_map.zig
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@ -529,10 +529,6 @@ pub fn ArrayHashMapUnmanaged(
/// Used to detect memory safety violations.
pointer_stability: std.debug.SafetyLock = .{},
comptime {
std.hash_map.verifyContext(Context, K, K, u32, true);
}
/// Modifying the key is allowed only if it does not change the hash.
/// Modifying the value is allowed.
/// Entry pointers become invalid whenever this ArrayHashMap is modified,
@ -1847,27 +1843,16 @@ pub fn ArrayHashMapUnmanaged(
}
}
inline fn checkedHash(ctx: anytype, key: anytype) u32 {
comptime std.hash_map.verifyContext(@TypeOf(ctx), @TypeOf(key), K, u32, true);
fn checkedHash(ctx: anytype, key: anytype) u32 {
// If you get a compile error on the next line, it means that your
// generic hash function doesn't accept your key.
const hash = ctx.hash(key);
if (@TypeOf(hash) != u32) {
@compileError("Context " ++ @typeName(@TypeOf(ctx)) ++ " has a generic hash function that returns the wrong type!\n" ++
@typeName(u32) ++ " was expected, but found " ++ @typeName(@TypeOf(hash)));
}
return hash;
return ctx.hash(key);
}
inline fn checkedEql(ctx: anytype, a: anytype, b: K, b_index: usize) bool {
comptime std.hash_map.verifyContext(@TypeOf(ctx), @TypeOf(a), K, u32, true);
fn checkedEql(ctx: anytype, a: anytype, b: K, b_index: usize) bool {
// If you get a compile error on the next line, it means that your
// generic eql function doesn't accept (self, adapt key, K, index).
const eql = ctx.eql(a, b, b_index);
if (@TypeOf(eql) != bool) {
@compileError("Context " ++ @typeName(@TypeOf(ctx)) ++ " has a generic eql function that returns the wrong type!\n" ++
@typeName(bool) ++ " was expected, but found " ++ @typeName(@TypeOf(eql)));
}
return eql;
return ctx.eql(a, b, b_index);
}
fn dumpState(self: Self, comptime keyFmt: []const u8, comptime valueFmt: []const u8) void {