/
asserted_cast.cpp
250 lines (202 loc) · 3.81 KB
/
asserted_cast.cpp
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#define MY_ASSERT(...) do { } while (0)
#define MY_ATTRS __attribute((noinline))
#include <cstdarg>
#include <cstdint>
#include <cstdlib>
#include <ostream>
#include <new>
struct I;
struct H {
enum class Tag : uint8_t {
H_Foo,
H_Bar,
H_Baz,
};
struct H_Foo_Body {
int16_t _0;
};
struct H_Bar_Body {
uint8_t x;
int16_t y;
};
Tag tag;
union {
H_Foo_Body foo;
H_Bar_Body bar;
};
static H H_Foo(const int16_t &_0) {
H result;
::new (&result.foo._0) (int16_t)(_0);
result.tag = Tag::H_Foo;
return result;
}
bool IsH_Foo() const {
return tag == Tag::H_Foo;
}
const int16_t& AsH_Foo() const {
MY_ASSERT(IsH_Foo());
return foo._0;
}
MY_ATTRS int16_t& AsH_Foo() {
MY_ASSERT(IsH_Foo());
return foo._0;
}
static H H_Bar(const uint8_t &x,
const int16_t &y) {
H result;
::new (&result.bar.x) (uint8_t)(x);
::new (&result.bar.y) (int16_t)(y);
result.tag = Tag::H_Bar;
return result;
}
bool IsH_Bar() const {
return tag == Tag::H_Bar;
}
MY_ATTRS const H_Bar_Body& AsH_Bar() const {
MY_ASSERT(IsH_Bar());
return bar;
}
H_Bar_Body& AsH_Bar() {
MY_ASSERT(IsH_Bar());
return bar;
}
static H H_Baz() {
H result;
result.tag = Tag::H_Baz;
return result;
}
MY_ATTRS bool IsH_Baz() const {
return tag == Tag::H_Baz;
}
};
struct J {
enum class Tag : uint8_t {
J_Foo,
J_Bar,
J_Baz,
};
struct J_Foo_Body {
int16_t _0;
};
struct J_Bar_Body {
uint8_t x;
int16_t y;
};
Tag tag;
union {
J_Foo_Body foo;
J_Bar_Body bar;
};
static J J_Foo(const int16_t &_0) {
J result;
::new (&result.foo._0) (int16_t)(_0);
result.tag = Tag::J_Foo;
return result;
}
bool IsJ_Foo() const {
return tag == Tag::J_Foo;
}
const int16_t& AsJ_Foo() const {
MY_ASSERT(IsJ_Foo());
return foo._0;
}
int16_t& AsJ_Foo() {
MY_ASSERT(IsJ_Foo());
return foo._0;
}
static J J_Bar(const uint8_t &x,
const int16_t &y) {
J result;
::new (&result.bar.x) (uint8_t)(x);
::new (&result.bar.y) (int16_t)(y);
result.tag = Tag::J_Bar;
return result;
}
bool IsJ_Bar() const {
return tag == Tag::J_Bar;
}
const J_Bar_Body& AsJ_Bar() const {
MY_ASSERT(IsJ_Bar());
return bar;
}
J_Bar_Body& AsJ_Bar() {
MY_ASSERT(IsJ_Bar());
return bar;
}
static J J_Baz() {
J result;
result.tag = Tag::J_Baz;
return result;
}
bool IsJ_Baz() const {
return tag == Tag::J_Baz;
}
};
union K {
enum class Tag : uint8_t {
K_Foo,
K_Bar,
K_Baz,
};
struct K_Foo_Body {
Tag tag;
int16_t _0;
};
struct K_Bar_Body {
Tag tag;
uint8_t x;
int16_t y;
};
struct {
Tag tag;
};
K_Foo_Body foo;
K_Bar_Body bar;
static K K_Foo(const int16_t &_0) {
K result;
::new (&result.foo._0) (int16_t)(_0);
result.tag = Tag::K_Foo;
return result;
}
bool IsK_Foo() const {
return tag == Tag::K_Foo;
}
const int16_t& AsK_Foo() const {
MY_ASSERT(IsK_Foo());
return foo._0;
}
int16_t& AsK_Foo() {
MY_ASSERT(IsK_Foo());
return foo._0;
}
static K K_Bar(const uint8_t &x,
const int16_t &y) {
K result;
::new (&result.bar.x) (uint8_t)(x);
::new (&result.bar.y) (int16_t)(y);
result.tag = Tag::K_Bar;
return result;
}
bool IsK_Bar() const {
return tag == Tag::K_Bar;
}
const K_Bar_Body& AsK_Bar() const {
MY_ASSERT(IsK_Bar());
return bar;
}
K_Bar_Body& AsK_Bar() {
MY_ASSERT(IsK_Bar());
return bar;
}
static K K_Baz() {
K result;
result.tag = Tag::K_Baz;
return result;
}
bool IsK_Baz() const {
return tag == Tag::K_Baz;
}
};
extern "C" {
void foo(H h, I i, J j, K k);
} // extern "C"