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Revert "reserve correct space for bitfields"

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This reverts commit 22cb693889.
This commit is contained in:
Veikka Tuominen
2022-05-29 12:04:50 +03:00
parent 22cb693889
commit ee651c3cd3
5 changed files with 42 additions and 97 deletions
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54
test/translate_c.zig
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@@ -915,6 +915,21 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
\\};
});
cases.add("pointer to struct demoted to opaque due to bit fields",
\\struct Foo {
\\ unsigned int: 1;
\\};
\\struct Bar {
\\ struct Foo *foo;
\\};
, &[_][]const u8{
\\pub const struct_Foo = opaque {};
,
\\pub const struct_Bar = extern struct {
\\ foo: ?*struct_Foo,
\\};
});
cases.add("macro with left shift",
\\#define REDISMODULE_READ (1<<0)
, &[_][]const u8{
@@ -3562,33 +3577,34 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
\\}
});
cases.add("function that dereferences bitfield works",
cases.add("Demote function that initializes opaque struct",
\\struct my_struct {
\\ unsigned a: 15;
\\ unsigned: 2;
\\ unsigned b: 15;
\\};
\\void initialize(void) {
\\ struct my_struct S = {.a = 1, .b = 2};
\\}
, &[_][]const u8{
\\warning: cannot initialize opaque type
,
\\warning: unable to translate function, demoted to extern
\\pub extern fn initialize() void;
});
cases.add("Demote function that dereferences opaque type",
\\struct my_struct {
\\ unsigned a: 1;
\\ unsigned b: 28;
\\};
\\void deref(struct my_struct *s) {
\\ *s;
\\}
, &[_][]const u8{
\\pub const struct_my_struct = extern struct {
\\ bitfield0: c_uint,
\\warning: cannot dereference opaque type
,
\\pub export fn deref(arg_s: ?*struct_my_struct) void {
\\ var s = arg_s;
\\ _ = s.*;
\\}
});
cases.add("bitfield don't cover requedted space",
\\struct inner {
\\ unsigned a: 1;
\\ char after;
\\};
, &[_][]const u8{
\\less bits used than field size.
,
\\pub const struct_inner = opaque {};
\\warning: unable to translate function, demoted to extern
\\pub extern fn deref(arg_s: ?*struct_my_struct) void;
});
cases.add("Function prototype declared within function",