mirror of
https://github.com/ziglang/zig.git
synced 2025-12-25 23:53:15 +00:00
0570df69b1
Elide the alignment check if the pointer alignment is one, the null check must be preserved as it depends on the pointer type. Fixes #6667
924 lines
32 KiB
Zig
924 lines
32 KiB
Zig
const tests = @import("tests.zig");
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pub fn addCases(cases: *tests.CompareOutputContext) void {
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{
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const check_panic_msg =
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ if (std.mem.eql(u8, message, "index out of bounds")) {
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\\ std.process.exit(126); // good
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\\ }
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\\ std.process.exit(0); // test failed
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\\}
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;
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cases.addRuntimeSafety("slicing operator with sentinel",
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\\const std = @import("std");
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++ check_panic_msg ++
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\\pub fn main() void {
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\\ var buf = [4]u8{'a','b','c',0};
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\\ const slice = buf[0..4 :0];
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\\}
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);
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cases.addRuntimeSafety("slicing operator with sentinel",
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\\const std = @import("std");
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++ check_panic_msg ++
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\\pub fn main() void {
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\\ var buf = [4]u8{'a','b','c',0};
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\\ const slice = buf[0..:0];
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\\}
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);
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cases.addRuntimeSafety("slicing operator with sentinel",
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\\const std = @import("std");
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++ check_panic_msg ++
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\\pub fn main() void {
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\\ var buf_zero = [0]u8{};
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\\ const slice = buf_zero[0..0 :0];
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\\}
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);
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cases.addRuntimeSafety("slicing operator with sentinel",
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\\const std = @import("std");
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++ check_panic_msg ++
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\\pub fn main() void {
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\\ var buf_zero = [0]u8{};
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\\ const slice = buf_zero[0..:0];
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\\}
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);
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cases.addRuntimeSafety("slicing operator with sentinel",
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\\const std = @import("std");
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++ check_panic_msg ++
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\\pub fn main() void {
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\\ var buf_sentinel = [2:0]u8{'a','b'};
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\\ @ptrCast(*[3]u8, &buf_sentinel)[2] = 0;
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\\ const slice = buf_sentinel[0..3 :0];
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\\}
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);
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cases.addRuntimeSafety("slicing operator with sentinel",
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\\const std = @import("std");
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++ check_panic_msg ++
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\\pub fn main() void {
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\\ var buf_slice: []const u8 = &[3]u8{ 'a', 'b', 0 };
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\\ const slice = buf_slice[0..3 :0];
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\\}
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);
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cases.addRuntimeSafety("slicing operator with sentinel",
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\\const std = @import("std");
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++ check_panic_msg ++
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\\pub fn main() void {
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\\ var buf_slice: []const u8 = &[3]u8{ 'a', 'b', 0 };
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\\ const slice = buf_slice[0.. :0];
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\\}
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);
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}
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cases.addRuntimeSafety("shift left by huge amount",
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\\const std = @import("std");
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ if (std.mem.eql(u8, message, "shift amount is greater than the type size")) {
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\\ std.process.exit(126); // good
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\\ }
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\\ std.process.exit(0); // test failed
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\\}
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\\pub fn main() void {
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\\ var x: u24 = 42;
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\\ var y: u5 = 24;
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\\ var z = x >> y;
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\\}
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);
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cases.addRuntimeSafety("shift right by huge amount",
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\\const std = @import("std");
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ if (std.mem.eql(u8, message, "shift amount is greater than the type size")) {
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\\ std.process.exit(126); // good
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\\ }
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\\ std.process.exit(0); // test failed
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\\}
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\\pub fn main() void {
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\\ var x: u24 = 42;
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\\ var y: u5 = 24;
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\\ var z = x << y;
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\\}
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);
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cases.addRuntimeSafety("slice sentinel mismatch - optional pointers",
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\\const std = @import("std");
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ if (std.mem.eql(u8, message, "sentinel mismatch")) {
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\\ std.process.exit(126); // good
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\\ }
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\\ std.process.exit(0); // test failed
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\\}
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\\pub fn main() void {
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\\ var buf: [4]?*i32 = undefined;
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\\ const slice = buf[0..3 :null];
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\\}
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);
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cases.addRuntimeSafety("slice sentinel mismatch - floats",
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\\const std = @import("std");
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ if (std.mem.eql(u8, message, "sentinel mismatch")) {
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\\ std.process.exit(126); // good
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\\ }
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\\ std.process.exit(0); // test failed
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\\}
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\\pub fn main() void {
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\\ var buf: [4]f32 = undefined;
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\\ const slice = buf[0..3 :1.2];
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\\}
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);
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cases.addRuntimeSafety("pointer slice sentinel mismatch",
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\\const std = @import("std");
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ if (std.mem.eql(u8, message, "sentinel mismatch")) {
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\\ std.process.exit(126); // good
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\\ }
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\\ std.process.exit(0); // test failed
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\\}
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\\pub fn main() void {
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\\ var buf: [4]u8 = undefined;
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\\ const ptr: [*]u8 = &buf;
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\\ const slice = ptr[0..3 :0];
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\\}
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);
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cases.addRuntimeSafety("slice slice sentinel mismatch",
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\\const std = @import("std");
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ if (std.mem.eql(u8, message, "sentinel mismatch")) {
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\\ std.process.exit(126); // good
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\\ }
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\\ std.process.exit(0); // test failed
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\\}
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\\pub fn main() void {
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\\ var buf: [4]u8 = undefined;
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\\ const slice = buf[0..];
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\\ const slice2 = slice[0..3 :0];
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\\}
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);
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cases.addRuntimeSafety("array slice sentinel mismatch",
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\\const std = @import("std");
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ if (std.mem.eql(u8, message, "sentinel mismatch")) {
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\\ std.process.exit(126); // good
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\\ }
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\\ std.process.exit(0); // test failed
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\\}
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\\pub fn main() void {
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\\ var buf: [4]u8 = undefined;
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\\ const slice = buf[0..3 :0];
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\\}
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);
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cases.addRuntimeSafety("intToPtr with misaligned address",
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\\const std = @import("std");
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ if (std.mem.eql(u8, message, "incorrect alignment")) {
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\\ std.os.exit(126); // good
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\\ }
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\\ std.os.exit(0); // test failed
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\\}
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\\pub fn main() void {
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\\ var x: usize = 5;
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\\ var y = @intToPtr([*]align(4) u8, x);
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\\}
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);
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cases.addRuntimeSafety("resuming a non-suspended function which never been suspended",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\fn foo() void {
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\\ var f = async bar(@frame());
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\\ @import("std").os.exit(0);
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\\}
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\\
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\\fn bar(frame: anyframe) void {
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\\ suspend {
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\\ resume frame;
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\\ }
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\\ @import("std").os.exit(0);
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\\}
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\\
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\\pub fn main() void {
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\\ _ = async foo();
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\\}
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);
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cases.addRuntimeSafety("resuming a non-suspended function which has been suspended and resumed",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\fn foo() void {
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\\ suspend {
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\\ global_frame = @frame();
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\\ }
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\\ var f = async bar(@frame());
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\\ @import("std").os.exit(0);
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\\}
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\\
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\\fn bar(frame: anyframe) void {
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\\ suspend {
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\\ resume frame;
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\\ }
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\\ @import("std").os.exit(0);
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\\}
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\\
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\\var global_frame: anyframe = undefined;
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\\pub fn main() void {
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\\ _ = async foo();
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\\ resume global_frame;
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\\ @import("std").os.exit(0);
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\\}
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);
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cases.addRuntimeSafety("nosuspend function call, callee suspends",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ _ = nosuspend add(101, 100);
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\\}
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\\fn add(a: i32, b: i32) i32 {
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\\ if (a > 100) {
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\\ suspend;
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\\ }
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\\ return a + b;
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\\}
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);
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cases.addRuntimeSafety("awaiting twice",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\var frame: anyframe = undefined;
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\\
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\\pub fn main() void {
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\\ _ = async amain();
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\\ resume frame;
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\\}
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\\
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\\fn amain() void {
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\\ var f = async func();
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\\ await f;
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\\ await f;
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\\}
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\\
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\\fn func() void {
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\\ suspend {
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\\ frame = @frame();
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\\ }
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\\}
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);
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cases.addRuntimeSafety("@asyncCall with too small a frame",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ var bytes: [1]u8 align(16) = undefined;
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\\ var ptr = other;
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\\ var frame = @asyncCall(&bytes, {}, ptr, .{});
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\\}
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\\fn other() callconv(.Async) void {
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\\ suspend;
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\\}
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);
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cases.addRuntimeSafety("resuming a function which is awaiting a frame",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ var frame = async first();
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\\ resume frame;
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\\}
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\\fn first() void {
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\\ var frame = async other();
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\\ await frame;
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\\}
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\\fn other() void {
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\\ suspend;
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\\}
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);
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cases.addRuntimeSafety("resuming a function which is awaiting a call",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ var frame = async first();
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\\ resume frame;
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\\}
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\\fn first() void {
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\\ other();
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\\}
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\\fn other() void {
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\\ suspend;
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\\}
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);
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cases.addRuntimeSafety("invalid resume of async function",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ var p = async suspendOnce();
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\\ resume p; //ok
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\\ resume p; //bad
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\\}
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\\fn suspendOnce() void {
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\\ suspend;
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\\}
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);
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cases.addRuntimeSafety(".? operator on null pointer",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ var ptr: ?*i32 = null;
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\\ var b = ptr.?;
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\\}
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);
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cases.addRuntimeSafety(".? operator on C pointer",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ var ptr: [*c]i32 = null;
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\\ var b = ptr.?;
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\\}
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);
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cases.addRuntimeSafety("@intToPtr address zero to non-optional pointer",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ var zero: usize = 0;
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\\ var b = @intToPtr(*i32, zero);
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\\}
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);
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cases.addRuntimeSafety("@intToPtr address zero to non-optional byte-aligned pointer",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ var zero: usize = 0;
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\\ var b = @intToPtr(*u8, zero);
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\\}
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);
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cases.addRuntimeSafety("pointer casting null to non-optional pointer",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ var c_ptr: [*c]u8 = 0;
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\\ var zig_ptr: *u8 = c_ptr;
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\\}
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);
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cases.addRuntimeSafety("@intToEnum - no matching tag value",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\const Foo = enum {
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\\ A,
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\\ B,
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\\ C,
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\\};
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\\pub fn main() void {
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\\ baz(bar(3));
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\\}
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\\fn bar(a: u2) Foo {
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\\ return @intToEnum(Foo, a);
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\\}
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\\fn baz(a: Foo) void {}
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);
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cases.addRuntimeSafety("@floatToInt cannot fit - negative to unsigned",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ baz(bar(-1.1));
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\\}
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\\fn bar(a: f32) u8 {
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\\ return @floatToInt(u8, a);
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\\}
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\\fn baz(a: u8) void { }
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);
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cases.addRuntimeSafety("@floatToInt cannot fit - negative out of range",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ baz(bar(-129.1));
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\\}
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\\fn bar(a: f32) i8 {
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\\ return @floatToInt(i8, a);
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\\}
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\\fn baz(a: i8) void { }
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);
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cases.addRuntimeSafety("@floatToInt cannot fit - positive out of range",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
|
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\\pub fn main() void {
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\\ baz(bar(256.2));
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\\}
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\\fn bar(a: f32) u8 {
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\\ return @floatToInt(u8, a);
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\\}
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\\fn baz(a: u8) void { }
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);
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cases.addRuntimeSafety("calling panic",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ @panic("oh no");
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\\}
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);
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cases.addRuntimeSafety("out of bounds slice access",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ const a = [_]i32{1, 2, 3, 4};
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\\ baz(bar(&a));
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\\}
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\\fn bar(a: []const i32) i32 {
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\\ return a[4];
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\\}
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\\fn baz(a: i32) void { }
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);
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cases.addRuntimeSafety("integer addition overflow",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() !void {
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\\ const x = add(65530, 10);
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\\ if (x == 0) return error.Whatever;
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\\}
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\\fn add(a: u16, b: u16) u16 {
|
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\\ return a + b;
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\\}
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);
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cases.addRuntimeSafety("vector integer addition overflow",
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\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
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\\ @import("std").os.exit(126);
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\\}
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\\pub fn main() void {
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\\ var a: @import("std").meta.Vector(4, i32) = [_]i32{ 1, 2, 2147483643, 4 };
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\\ var b: @import("std").meta.Vector(4, i32) = [_]i32{ 5, 6, 7, 8 };
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\\ const x = add(a, b);
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\\}
|
|
\\fn add(a: @import("std").meta.Vector(4, i32), b: @import("std").meta.Vector(4, i32)) @import("std").meta.Vector(4, i32) {
|
|
\\ return a + b;
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("vector integer subtraction overflow",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() void {
|
|
\\ var a: @import("std").meta.Vector(4, u32) = [_]u32{ 1, 2, 8, 4 };
|
|
\\ var b: @import("std").meta.Vector(4, u32) = [_]u32{ 5, 6, 7, 8 };
|
|
\\ const x = sub(b, a);
|
|
\\}
|
|
\\fn sub(a: @import("std").meta.Vector(4, u32), b: @import("std").meta.Vector(4, u32)) @import("std").meta.Vector(4, u32) {
|
|
\\ return a - b;
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("vector integer multiplication overflow",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() void {
|
|
\\ var a: @import("std").meta.Vector(4, u8) = [_]u8{ 1, 2, 200, 4 };
|
|
\\ var b: @import("std").meta.Vector(4, u8) = [_]u8{ 5, 6, 2, 8 };
|
|
\\ const x = mul(b, a);
|
|
\\}
|
|
\\fn mul(a: @import("std").meta.Vector(4, u8), b: @import("std").meta.Vector(4, u8)) @import("std").meta.Vector(4, u8) {
|
|
\\ return a * b;
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("vector integer negation overflow",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() void {
|
|
\\ var a: @import("std").meta.Vector(4, i16) = [_]i16{ 1, -32768, 200, 4 };
|
|
\\ const x = neg(a);
|
|
\\}
|
|
\\fn neg(a: @import("std").meta.Vector(4, i16)) @import("std").meta.Vector(4, i16) {
|
|
\\ return -a;
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("integer subtraction overflow",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\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.addRuntimeSafety("integer multiplication overflow",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\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.addRuntimeSafety("integer negation overflow",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() !void {
|
|
\\ const x = neg(-32768);
|
|
\\ if (x == 32767) return error.Whatever;
|
|
\\}
|
|
\\fn neg(a: i16) i16 {
|
|
\\ return -a;
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("signed integer division overflow",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\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.addRuntimeSafety("signed integer division overflow - vectors",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() !void {
|
|
\\ var a: @import("std").meta.Vector(4, i16) = [_]i16{ 1, 2, -32768, 4 };
|
|
\\ var b: @import("std").meta.Vector(4, i16) = [_]i16{ 1, 2, -1, 4 };
|
|
\\ const x = div(a, b);
|
|
\\ if (x[2] == 32767) return error.Whatever;
|
|
\\}
|
|
\\fn div(a: @import("std").meta.Vector(4, i16), b: @import("std").meta.Vector(4, i16)) @import("std").meta.Vector(4, i16) {
|
|
\\ return @divTrunc(a, b);
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("signed shift left overflow",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\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.addRuntimeSafety("unsigned shift left overflow",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\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.addRuntimeSafety("signed shift right overflow",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\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.addRuntimeSafety("unsigned shift right overflow",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\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.addRuntimeSafety("integer division by zero",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() void {
|
|
\\ const x = div0(999, 0);
|
|
\\}
|
|
\\fn div0(a: i32, b: i32) i32 {
|
|
\\ return @divTrunc(a, b);
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("integer division by zero - vectors",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() void {
|
|
\\ var a: @import("std").meta.Vector(4, i32) = [4]i32{111, 222, 333, 444};
|
|
\\ var b: @import("std").meta.Vector(4, i32) = [4]i32{111, 0, 333, 444};
|
|
\\ const x = div0(a, b);
|
|
\\}
|
|
\\fn div0(a: @import("std").meta.Vector(4, i32), b: @import("std").meta.Vector(4, i32)) @import("std").meta.Vector(4, i32) {
|
|
\\ return @divTrunc(a, b);
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("exact division failure",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\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.addRuntimeSafety("exact division failure - vectors",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() !void {
|
|
\\ var a: @import("std").meta.Vector(4, i32) = [4]i32{111, 222, 333, 444};
|
|
\\ var b: @import("std").meta.Vector(4, i32) = [4]i32{111, 222, 333, 441};
|
|
\\ const x = divExact(a, b);
|
|
\\}
|
|
\\fn divExact(a: @import("std").meta.Vector(4, i32), b: @import("std").meta.Vector(4, i32)) @import("std").meta.Vector(4, i32) {
|
|
\\ return @divExact(a, b);
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("cast []u8 to bigger slice of wrong size",
|
|
\\const std = @import("std");
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*std.builtin.StackTrace) noreturn {
|
|
\\ std.os.exit(126);
|
|
\\}
|
|
\\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 std.mem.bytesAsSlice(i32, slice);
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("value does not fit in shortening cast",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() !void {
|
|
\\ const x = shorten_cast(200);
|
|
\\ if (x == 0) return error.Whatever;
|
|
\\}
|
|
\\fn shorten_cast(x: i32) i8 {
|
|
\\ return @intCast(i8, x);
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("value does not fit in shortening cast - u0",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() !void {
|
|
\\ const x = shorten_cast(1);
|
|
\\ if (x == 0) return error.Whatever;
|
|
\\}
|
|
\\fn shorten_cast(x: u8) u0 {
|
|
\\ return @intCast(u0, x);
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("signed integer not fitting in cast to unsigned integer",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() !void {
|
|
\\ const x = unsigned_cast(-10);
|
|
\\ if (x == 0) return error.Whatever;
|
|
\\}
|
|
\\fn unsigned_cast(x: i32) u32 {
|
|
\\ return @intCast(u32, x);
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("signed integer not fitting in cast to unsigned integer - widening",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() void {
|
|
\\ var value: c_short = -1;
|
|
\\ var casted = @intCast(u32, value);
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("unsigned integer not fitting in cast to signed integer - same bit count",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() void {
|
|
\\ var value: u8 = 245;
|
|
\\ var casted = @intCast(i8, value);
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("unwrap error",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ if (@import("std").mem.eql(u8, message, "attempt to unwrap error: Whatever")) {
|
|
\\ @import("std").os.exit(126); // good
|
|
\\ }
|
|
\\ @import("std").os.exit(0); // test failed
|
|
\\}
|
|
\\pub fn main() void {
|
|
\\ bar() catch unreachable;
|
|
\\}
|
|
\\fn bar() !void {
|
|
\\ return error.Whatever;
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("cast integer to global error and no code matches",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\pub fn main() void {
|
|
\\ bar(9999) catch {};
|
|
\\}
|
|
\\fn bar(x: u16) anyerror {
|
|
\\ return @intToError(x);
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("@errSetCast error not present in destination",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\const Set1 = error{A, B};
|
|
\\const Set2 = error{A, C};
|
|
\\pub fn main() void {
|
|
\\ foo(Set1.B) catch {};
|
|
\\}
|
|
\\fn foo(set1: Set1) Set2 {
|
|
\\ return @errSetCast(Set2, set1);
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("@alignCast misaligned",
|
|
\\const std = @import("std");
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*std.builtin.StackTrace) noreturn {
|
|
\\ std.os.exit(126);
|
|
\\}
|
|
\\pub fn main() !void {
|
|
\\ var array align(4) = [_]u32{0x11111111, 0x11111111};
|
|
\\ const bytes = std.mem.sliceAsBytes(array[0..]);
|
|
\\ if (foo(bytes) != 0x11111111) return error.Wrong;
|
|
\\}
|
|
\\fn foo(bytes: []u8) u32 {
|
|
\\ const slice4 = bytes[1..5];
|
|
\\ const int_slice = std.mem.bytesAsSlice(u32, @alignCast(4, slice4));
|
|
\\ return int_slice[0];
|
|
\\}
|
|
);
|
|
|
|
cases.addRuntimeSafety("bad union field access",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) 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) void {
|
|
\\ f.float = 12.34;
|
|
\\}
|
|
);
|
|
|
|
// @intCast a runtime integer to u0 actually results in a comptime-known value,
|
|
// but we still emit a safety check to ensure the integer was 0 and thus
|
|
// did not truncate information.
|
|
cases.addRuntimeSafety("@intCast to u0",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\
|
|
\\pub fn main() void {
|
|
\\ bar(1, 1);
|
|
\\}
|
|
\\
|
|
\\fn bar(one: u1, not_zero: i32) void {
|
|
\\ var x = one << @intCast(u0, not_zero);
|
|
\\}
|
|
);
|
|
|
|
// This case makes sure that the code compiles and runs. There is not actually a special
|
|
// runtime safety check having to do specifically with error return traces across suspend points.
|
|
cases.addRuntimeSafety("error return trace across suspend points",
|
|
\\const std = @import("std");
|
|
\\
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ std.os.exit(126);
|
|
\\}
|
|
\\
|
|
\\var failing_frame: @Frame(failing) = undefined;
|
|
\\
|
|
\\pub fn main() void {
|
|
\\ const p = nonFailing();
|
|
\\ resume p;
|
|
\\ const p2 = async printTrace(p);
|
|
\\}
|
|
\\
|
|
\\fn nonFailing() anyframe->anyerror!void {
|
|
\\ failing_frame = async failing();
|
|
\\ return &failing_frame;
|
|
\\}
|
|
\\
|
|
\\fn failing() anyerror!void {
|
|
\\ suspend;
|
|
\\ return second();
|
|
\\}
|
|
\\
|
|
\\fn second() callconv(.Async) anyerror!void {
|
|
\\ return error.Fail;
|
|
\\}
|
|
\\
|
|
\\fn printTrace(p: anyframe->anyerror!void) void {
|
|
\\ (await p) catch unreachable;
|
|
\\}
|
|
);
|
|
|
|
// Slicing a C pointer returns a non-allowzero slice, thus we need to emit
|
|
// a safety check to ensure the pointer is not null.
|
|
cases.addRuntimeSafety("slicing null C pointer",
|
|
\\pub fn panic(message: []const u8, stack_trace: ?*@import("builtin").StackTrace) noreturn {
|
|
\\ @import("std").os.exit(126);
|
|
\\}
|
|
\\
|
|
\\pub fn main() void {
|
|
\\ var ptr: [*c]const u32 = null;
|
|
\\ var slice = ptr[0..3];
|
|
\\}
|
|
);
|
|
}
|