Files
sx/examples/0122-types-flags.sx
agra d8076b9333 lang: rename signed integer types sN -> iN
Surface rename of the signed integer family: s1..s64 become i1..i64
(u1..u64, usize, isize unchanged). 'string' keeps the s-prefix arm in
name classification; width parsing moves to the i-prefix arm next to
isize.

Internal TypeId tags follow the surface (.s8/.s16/.s32/.s64 ->
.i8/.i16/.i32/.i64), as do mono-key mangle fragments (ptr_i64,
tu_i64_bool) and all display/diagnostic formatting (i{d}).

Migrated in the same sweep: stdlib + examples + issue repros + FFI C
companions (shared symbol names like ffi_id_i64), expected
stdout/stderr/ir snapshots, specs.md, readme.md, CLAUDE.md/AGENTS.md,
implementation_plan.md, docs/, issue writeups. Vendored stb_image and
historical flow state left untouched.

zig build test: 426/426; examples suite: 595/595.
2026-06-12 09:31:53 +03:00

107 lines
2.4 KiB
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#import "modules/std.sx";
#import "modules/math";
#import "modules/build.sx";
#import "modules/std/test.sx";
pkg :: #import "tests/fixtures/testpkg";
Perms :: enum flags { read; write; execute; }
WindowFlags :: enum flags u32 { vsync :: 64; resizable :: 4; hidden :: 128; }
// --- Top-level functions ---
main :: () {
// ========================================================
// 9. FLAGS
// ========================================================
print("=== 9. Flags ===\n");
// Combine flags
perm : Perms = .read | .write;
print("flags: {}\n", perm);
// Test flag
if perm & .read { print("has-read: yes\n"); }
if perm & .execute { print("has-exec: yes\n"); }
// Test flag negative
pt : Perms = .write;
if pt & .read {
print("flags-neg: has-read\n");
} else {
print("flags-neg: no-read\n");
}
// Single flag
ps : Perms = .execute;
print("flags-single: {}\n", ps);
// All flags
pall : Perms = .read | .write | .execute;
print("flags-all: {}\n", pall);
// Cast to int
print("flags-raw: {}\n", cast(i64) perm);
// Flags with explicit values
wf : WindowFlags = .vsync | .resizable;
print("flags-explicit: {}\n", wf);
print("flags-explicit-raw: {}\n", cast(i64) wf);
// --- Multi-target assignment (swap) ---
print("--- swap ---\n");
// Variable swap
{
sa := 10;
sb := 20;
sa, sb = sb, sa;
print("var swap: {} {}\n", sa, sb);
}
// Array element swap
{
sarr : [3]i64 = .[1, 2, 3];
sarr[0], sarr[2] = sarr[2], sarr[0];
print("arr swap: {} {}\n", sarr[0], sarr[2]);
}
// 3-way rotation
{
ra := 1;
rb := 2;
rc := 3;
ra, rb, rc = rc, ra, rb;
print("3-way: {} {} {}\n", ra, rb, rc);
}
// --- Tuple destructuring ---
print("--- destructure ---\n");
// Basic tuple destructuring
{
da, db := (10, 20);
print("basic: {} {}\n", da, db);
}
// Destructure from function return
{
dswap :: (a: i64, b: i64) -> (i64, i64) { (b, a) }
dx, dy := dswap(1, 2);
print("fn: {} {}\n", dx, dy);
}
// Discard with _
{
_, dsecond := (100, 200);
print("discard: {}\n", dsecond);
}
// Three elements
{
da3, db3, dc3 := (1, 2, 3);
print("triple: {} {} {}\n", da3, db3, dc3);
}
}