zig/test/cases/compile_errors/dereference_anyopaque.zig
mlugg 0fe3fd01dd
std: update std.builtin.Type fields to follow naming conventions
The compiler actually doesn't need any functional changes for this: Sema
does reification based on the tag indices of `std.builtin.Type` already!
So, no zig1.wasm update is necessary.

This change is necessary to disallow name clashes between fields and
decls on a type, which is a prerequisite of #9938.
2024-08-28 08:39:59 +01:00

55 lines
1.9 KiB
Zig

const std = @import("std");
const Error = error{Something};
fn next() Error!void {
return;
}
fn parse(comptime T: type, allocator: std.mem.Allocator) !void {
parseFree(T, undefined, allocator);
_ = (try next()) != null;
}
fn parseFree(comptime T: type, value: T, allocator: std.mem.Allocator) void {
switch (@typeInfo(T)) {
.@"struct" => |structInfo| {
inline for (structInfo.fields) |field| {
if (!field.is_comptime)
parseFree(field.type, undefined, allocator);
}
},
.pointer => |ptrInfo| {
switch (ptrInfo.size) {
.One => {
parseFree(ptrInfo.child, value.*, allocator);
},
.Slice => {
for (value) |v|
parseFree(ptrInfo.child, v, allocator);
},
else => unreachable,
}
},
else => unreachable,
}
}
pub export fn entry() void {
const allocator = std.testing.failing_allocator;
_ = parse(std.StringArrayHashMap(bool), allocator) catch return;
}
// error
// target=native
// backend=llvm
//
// :11:22: error: comparison of 'void' with null
// :25:51: error: cannot load opaque type 'anyopaque'
// :25:51: error: values of type 'fn (*anyopaque, usize, u8, usize) ?[*]u8' must be comptime-known, but operand value is runtime-known
// :25:51: note: use '*const fn (*anyopaque, usize, u8, usize) ?[*]u8' for a function pointer type
// :25:51: error: values of type 'fn (*anyopaque, []u8, u8, usize, usize) bool' must be comptime-known, but operand value is runtime-known
// :25:51: note: use '*const fn (*anyopaque, []u8, u8, usize, usize) bool' for a function pointer type
// :25:51: error: values of type 'fn (*anyopaque, []u8, u8, usize) void' must be comptime-known, but operand value is runtime-known
// :25:51: note: use '*const fn (*anyopaque, []u8, u8, usize) void' for a function pointer type