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#include <metalang99/stmt.h>
#include <assert.h>
int main(void) {
// ML99_INTRODUCE_VAR_TO_STMT
{
if (1)
ML99_INTRODUCE_VAR_TO_STMT(int x = 5, y = 7) {
assert(5 == x);
assert(7 == y);
}
}
// ML99_INTRODUCE_NON_NULL_PTR_TO_STMT
{
int x = 5, y = 7;
// clang-format off
if (1)
ML99_INTRODUCE_NON_NULL_PTR_TO_STMT(int, x_ptr, &x)
ML99_INTRODUCE_NON_NULL_PTR_TO_STMT(int, y_ptr, &y) {
assert(x == *x_ptr);
assert(y == *y_ptr);
}
// clang-format on
}
// ML99_CHAIN_EXPR_STMT
{
int x, y;
// clang-format off
if (1)
ML99_CHAIN_EXPR_STMT(x = 1)
ML99_CHAIN_EXPR_STMT(y = 2) {
assert(1 == x);
assert(2 == y);
}
// clang-format on
// Test -Wunused suppression via ML99_CHAIN_EXPR_STMT.
int z;
if (1)
ML99_CHAIN_EXPR_STMT((void)z);
}
// ML99_CHAIN_EXPR_STMT_AFTER
{
int x = 5, y = 7;
if (1) {
assert(5 == x);
assert(7 == y);
ML99_CHAIN_EXPR_STMT_AFTER(x = 1) {
assert(5 == x);
assert(7 == y);
ML99_CHAIN_EXPR_STMT_AFTER(y = 2) {
assert(5 == x);
assert(7 == y);
}
assert(5 == x);
assert(2 == y);
}
assert(1 == x);
assert(2 == y);
}
}
// ML99_SUPPRESS_UNUSED_BEFORE_STMT
{
int x, y;
// clang-format off
if (1)
ML99_SUPPRESS_UNUSED_BEFORE_STMT(x)
ML99_SUPPRESS_UNUSED_BEFORE_STMT(y)
;
// clang-format on
}
// Clang-Format breaks with the following sequence of statements so they are put into a macro.
// clang-format off
#define STMT_CHAINING \
ML99_INTRODUCE_VAR_TO_STMT(int x = 5) \
ML99_INTRODUCE_NON_NULL_PTR_TO_STMT(int, x_ptr, &x) { \
assert(x == *x_ptr); \
\
ML99_CHAIN_EXPR_STMT(x = 7) \
ML99_INTRODUCE_VAR_TO_STMT(int y = 5) \
ML99_SUPPRESS_UNUSED_BEFORE_STMT(y) { \
ML99_CHAIN_EXPR_STMT_AFTER(x = 123) { \
assert(7 == x); \
} \
\
assert(123 == x); \
} \
}
// clang-format on
{ STMT_CHAINING }
#undef STMT_CHAINING
return 0;
}
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