| author |  Kirk Scheibelhut <kjs@scheibo.com> 2021-11-20 14:31:18-08:00 |
| committer |  Andrew Kelley <andrew@ziglang.org> 2021-11-22 21:33:08-05:00 |
| log | 065f40a3c5886c9087a4b752c014459bb1dac9ba |
| tree | 93175e084209089ed28bef9f15d7222d58f73153 |
| parent | ed70f9981c0f164aab586261cd5363e04905bc42 |
stage1: improve packed struct array padding error message
2 files changed, 6 insertions(+), 5 deletions(-)
src- stage1
src/stage1/analyze.cpp+5-4
| ... | ... | @@ -1777,11 +1777,12 @@ static Error emit_error_unless_type_allowed_in_packed_container(CodeGen *g, ZigT |
| 1777 | 1777 | if ((err = emit_error_unless_type_allowed_in_packed_container(g, elem_type, source_node, container_name))) |
| 1778 | 1778 | return err; |
| 1779 | 1779 | // TODO revisit this when doing https://github.com/ziglang/zig/issues/1512 |
| 1780 | if (type_size(g, type_entry) * 8 == type_size_bits(g, type_entry)) | |
| 1781 | return ErrorNone; | |
| 1780 | size_t abi_size_in_bits = type_size(g, type_entry) * 8; | |
| 1781 | size_t size_in_bits = type_size_bits(g, type_entry); | |
| 1782 | if (abi_size_in_bits == size_in_bits) return ErrorNone; | |
| 1782 | 1783 | add_node_error(g, source_node, |
| 1783 | buf_sprintf("array of '%s' not allowed in packed %s due to padding bits", | |
| 1784 | buf_ptr(&elem_type->name), container_name)); | |
| 1784 | buf_sprintf("array of '%s' not allowed in packed %s due to padding bits (must be padded from %zu to %zu bits)", | |
| 1785 | buf_ptr(&elem_type->name), container_name, size_in_bits, abi_size_in_bits)); | |
| 1785 | 1786 | return ErrorSemanticAnalyzeFail; |
| 1786 | 1787 | } |
| 1787 | 1788 | case ZigTypeIdStruct: |
test/compile_errors.zig+1-1
| ... | ... | @@ -2995,7 +2995,7 @@ pub fn addCases(ctx: *TestContext) !void { |
| 2995 | 2995 | \\}; |
| 2996 | 2996 | , &[_][]const u8{ |
| 2997 | 2997 | "tmp.zig:2:5: error: type 'anyerror' not allowed in packed struct; no guaranteed in-memory representation", |
| 2998 | "tmp.zig:5:5: error: array of 'u24' not allowed in packed struct due to padding bits", | |
| 2998 | "tmp.zig:5:5: error: array of 'u24' not allowed in packed struct due to padding bits (must be padded from 48 to 64 bits)", | |
| 2999 | 2999 | "tmp.zig:8:5: error: type 'anyerror' not allowed in packed struct; no guaranteed in-memory representation", |
| 3000 | 3000 | "tmp.zig:11:5: error: non-packed, non-extern struct 'S' not allowed in packed struct; no guaranteed in-memory representation", |
| 3001 | 3001 | "tmp.zig:14:5: error: non-packed, non-extern struct 'U' not allowed in packed struct; no guaranteed in-memory representation", |