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|
const tests = @import("tests.zig");
pub fn addCases(cases: &tests.CompareOutputContext) {
cases.addDebugSafety("calling panic",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\pub fn main() -> %void {
\\ @panic("oh no");
\\}
);
cases.addDebugSafety("out of bounds slice access",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\pub fn main() -> %void {
\\ const a = []i32{1, 2, 3, 4};
\\ baz(bar(a));
\\}
\\fn bar(a: []const i32) -> i32 {
\\ return a[4];
\\}
\\fn baz(a: i32) { }
);
cases.addDebugSafety("integer addition overflow",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = add(65530, 10);
\\ if (x == 0) return error.Whatever;
\\}
\\fn add(a: u16, b: u16) -> u16 {
\\ return a + b;
\\}
);
cases.addDebugSafety("integer subtraction overflow",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = sub(10, 20);
\\ if (x == 0) return error.Whatever;
\\}
\\fn sub(a: u16, b: u16) -> u16 {
\\ return a - b;
\\}
);
cases.addDebugSafety("integer multiplication overflow",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = mul(300, 6000);
\\ if (x == 0) return error.Whatever;
\\}
\\fn mul(a: u16, b: u16) -> u16 {
\\ return a * b;
\\}
);
cases.addDebugSafety("integer negation overflow",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = neg(-32768);
\\ if (x == 32767) return error.Whatever;
\\}
\\fn neg(a: i16) -> i16 {
\\ return -a;
\\}
);
cases.addDebugSafety("signed integer division overflow",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = div(-32768, -1);
\\ if (x == 32767) return error.Whatever;
\\}
\\fn div(a: i16, b: i16) -> i16 {
\\ return @divTrunc(a, b);
\\}
);
cases.addDebugSafety("signed shift left overflow",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = shl(-16385, 1);
\\ if (x == 0) return error.Whatever;
\\}
\\fn shl(a: i16, b: u4) -> i16 {
\\ return @shlExact(a, b);
\\}
);
cases.addDebugSafety("unsigned shift left overflow",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = shl(0b0010111111111111, 3);
\\ if (x == 0) return error.Whatever;
\\}
\\fn shl(a: u16, b: u4) -> u16 {
\\ return @shlExact(a, b);
\\}
);
cases.addDebugSafety("signed shift right overflow",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = shr(-16385, 1);
\\ if (x == 0) return error.Whatever;
\\}
\\fn shr(a: i16, b: u4) -> i16 {
\\ return @shrExact(a, b);
\\}
);
cases.addDebugSafety("unsigned shift right overflow",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = shr(0b0010111111111111, 3);
\\ if (x == 0) return error.Whatever;
\\}
\\fn shr(a: u16, b: u4) -> u16 {
\\ return @shrExact(a, b);
\\}
);
cases.addDebugSafety("integer division by zero",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = div0(999, 0);
\\}
\\fn div0(a: i32, b: i32) -> i32 {
\\ return @divTrunc(a, b);
\\}
);
cases.addDebugSafety("exact division failure",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = divExact(10, 3);
\\ if (x == 0) return error.Whatever;
\\}
\\fn divExact(a: i32, b: i32) -> i32 {
\\ return @divExact(a, b);
\\}
);
cases.addDebugSafety("cast []u8 to bigger slice of wrong size",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = widenSlice([]u8{1, 2, 3, 4, 5});
\\ if (x.len == 0) return error.Whatever;
\\}
\\fn widenSlice(slice: []align(1) const u8) -> []align(1) const i32 {
\\ return ([]align(1) const i32)(slice);
\\}
);
cases.addDebugSafety("value does not fit in shortening cast",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = shorten_cast(200);
\\ if (x == 0) return error.Whatever;
\\}
\\fn shorten_cast(x: i32) -> i8 {
\\ return i8(x);
\\}
);
cases.addDebugSafety("signed integer not fitting in cast to unsigned integer",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ const x = unsigned_cast(-10);
\\ if (x == 0) return error.Whatever;
\\}
\\fn unsigned_cast(x: i32) -> u32 {
\\ return u32(x);
\\}
);
cases.addDebugSafety("unwrap error",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Whatever;
\\pub fn main() -> %void {
\\ %%bar();
\\}
\\fn bar() -> %void {
\\ return error.Whatever;
\\}
);
cases.addDebugSafety("cast integer to error and no code matches",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\pub fn main() -> %void {
\\ _ = bar(9999);
\\}
\\fn bar(x: u32) -> error {
\\ return error(x);
\\}
);
cases.addDebugSafety("@alignCast misaligned",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\error Wrong;
\\pub fn main() -> %void {
\\ var array align(4) = []u32{0x11111111, 0x11111111};
\\ const bytes = ([]u8)(array[0..]);
\\ if (foo(bytes) != 0x11111111) return error.Wrong;
\\}
\\fn foo(bytes: []u8) -> u32 {
\\ const slice4 = bytes[1..5];
\\ const int_slice = ([]u32)(@alignCast(4, slice4));
\\ return int_slice[0];
\\}
);
cases.addDebugSafety("bad union field access",
\\pub fn panic(message: []const u8) -> noreturn {
\\ @import("std").os.exit(126);
\\}
\\
\\const Foo = union {
\\ float: f32,
\\ int: u32,
\\};
\\
\\pub fn main() -> %void {
\\ var f = Foo { .int = 42 };
\\ bar(&f);
\\}
\\
\\fn bar(f: &Foo) {
\\ f.float = 12.34;
\\}
);
}
|
