Commit 490addde278001694d554a9a9fe2eb8235831143 | zig

Closes #14505

2 files changed, 33 insertions(+), 1 deletions(-)

src/Sema.zig+12-1

...	...	@@ -9015,7 +9015,18 @@ fn zirParam(
9015	9015	if (is_comptime and sema.preallocated_new_func != null) {
9016	9016	// We have a comptime value for this parameter so it should be elided from the
9017	9017	// function type of the function instruction in this block.
9018		const coerced_arg = try sema.coerce(block, param_ty, arg, src);
	9018	const coerced_arg = sema.coerce(block, param_ty, arg, .unneeded) catch \|err\| switch (err) {
	9019	error.NeededSourceLocation => {
	9020	// We are instantiating a generic function and a comptime arg
	9021	// cannot be coerced to the param type, but since we don't
	9022	// have the callee source location return `GenericPoison`
	9023	// so that the instantiation is failed and the coercion
	9024	// is handled by comptime call logic instead.
	9025	assert(sema.is_generic_instantiation);
	9026	return error.GenericPoison;
	9027	},
	9028	else => return err,
	9029	};
9019	9030	sema.inst_map.putAssumeCapacity(inst, coerced_arg);
9020	9031	return;
9021	9032	}

test/cases/compile_errors/comptime_arg_to_generic_fn_callee_error.zig created+21

...	...	@@ -0,0 +1,21 @@
	1	const std = @import("std");
	2	const MyStruct = struct {
	3	a: i32,
	4	b: i32,
	5
	6	pub fn getA(self: *List) i32 {
	7	return self.items(.c);
	8	}
	9	};
	10	const List = std.MultiArrayList(MyStruct);
	11	pub export fn entry() void {
	12	var list = List{};
	13	_ = MyStruct.getA(&list);
	14	}
	15
	16	// error
	17	// backend=stage2
	18	// target=native
	19	//
	20	// :7:28: error: no field named 'c' in enum 'meta.FieldEnum(tmp.MyStruct)'
	21	// :?:?: note: enum declared here