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zig/test/run_tests.cpp

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/*
* Copyright (c) 2015 Andrew Kelley
*
* This file is part of zig, which is MIT licensed.
* See http://opensource.org/licenses/MIT
*/
#include "list.hpp"
#include "buffer.hpp"
#include "os.hpp"
#include "error.hpp"
#include "config.h"
#include <stdio.h>
#include <stdarg.h>
enum TestSpecial {
TestSpecialNone,
TestSpecialSelfHosted,
TestSpecialStd,
TestSpecialLinkStep,
};
struct TestSourceFile {
const char *relative_path;
const char *source_code;
};
enum AllowWarnings {
AllowWarningsNo,
AllowWarningsYes,
};
struct TestCase {
const char *case_name;
const char *output;
ZigList<TestSourceFile> source_files;
ZigList<const char *> compile_errors;
ZigList<const char *> compiler_args;
ZigList<const char *> linker_args;
ZigList<const char *> program_args;
bool is_parseh;
TestSpecial special;
bool is_release_mode;
bool is_debug_safety;
AllowWarnings allow_warnings;
};
static ZigList<TestCase*> test_cases = {0};
static const char *tmp_source_path = ".tmp_source.zig";
static const char *tmp_h_path = ".tmp_header.h";
#if defined(_WIN32)
static const char *tmp_exe_path = "./.tmp_exe.exe";
static const char *zig_exe = "./zig.exe";
#define NL "\r\n"
#else
static const char *tmp_exe_path = "./.tmp_exe";
static const char *zig_exe = "./zig";
#define NL "\n"
#endif
static void add_source_file(TestCase *test_case, const char *path, const char *source) {
test_case->source_files.add_one();
test_case->source_files.last().relative_path = path;
test_case->source_files.last().source_code = source;
}
static TestCase *add_simple_case(const char *case_name, const char *source, const char *output) {
TestCase *test_case = allocate<TestCase>(1);
test_case->case_name = case_name;
test_case->output = output;
test_case->source_files.resize(1);
test_case->source_files.at(0).relative_path = tmp_source_path;
test_case->source_files.at(0).source_code = source;
test_case->compiler_args.append("build_exe");
test_case->compiler_args.append(tmp_source_path);
test_case->compiler_args.append("--name");
test_case->compiler_args.append("test");
test_case->compiler_args.append("--output");
test_case->compiler_args.append(tmp_exe_path);
test_case->compiler_args.append("--release");
test_case->compiler_args.append("--strip");
test_case->compiler_args.append("--color");
test_case->compiler_args.append("on");
test_cases.append(test_case);
return test_case;
}
static TestCase *add_asm_case(const char *case_name, const char *source, const char *output) {
TestCase *test_case = allocate<TestCase>(1);
test_case->case_name = case_name;
test_case->output = output;
test_case->special = TestSpecialLinkStep;
test_case->source_files.resize(1);
test_case->source_files.at(0).relative_path = ".tmp_source.s";
test_case->source_files.at(0).source_code = source;
test_case->compiler_args.append("asm");
test_case->compiler_args.append(".tmp_source.s");
test_case->compiler_args.append("--name");
test_case->compiler_args.append("test");
test_case->compiler_args.append("--color");
test_case->compiler_args.append("on");
test_case->linker_args.append("link_exe");
test_case->linker_args.append("test.o");
test_case->linker_args.append("--name");
test_case->linker_args.append("test");
test_case->linker_args.append("--output");
test_case->linker_args.append(tmp_exe_path);
test_case->linker_args.append("--color");
test_case->linker_args.append("on");
test_cases.append(test_case);
return test_case;
}
static TestCase *add_simple_case_libc(const char *case_name, const char *source, const char *output) {
TestCase *tc = add_simple_case(case_name, source, output);
tc->compiler_args.append("--library");
tc->compiler_args.append("c");
return tc;
}
static TestCase *add_compile_fail_case(const char *case_name, const char *source, size_t count, ...) {
va_list ap;
va_start(ap, count);
TestCase *test_case = allocate<TestCase>(1);
test_case->case_name = case_name;
test_case->source_files.resize(1);
test_case->source_files.at(0).relative_path = tmp_source_path;
test_case->source_files.at(0).source_code = source;
for (size_t i = 0; i < count; i += 1) {
const char *arg = va_arg(ap, const char *);
test_case->compile_errors.append(arg);
}
test_case->compiler_args.append("build_obj");
test_case->compiler_args.append(tmp_source_path);
test_case->compiler_args.append("--name");
test_case->compiler_args.append("test");
test_case->compiler_args.append("--output");
test_case->compiler_args.append(tmp_exe_path);
test_case->compiler_args.append("--release");
test_case->compiler_args.append("--strip");
test_cases.append(test_case);
return test_case;
}
static void add_debug_safety_case(const char *case_name, const char *source) {
TestCase *test_case = allocate<TestCase>(1);
test_case->is_debug_safety = true;
test_case->case_name = buf_ptr(buf_sprintf("%s", case_name));
test_case->source_files.resize(1);
test_case->source_files.at(0).relative_path = tmp_source_path;
test_case->source_files.at(0).source_code = source;
test_case->compiler_args.append("build_exe");
test_case->compiler_args.append(tmp_source_path);
test_case->compiler_args.append("--name");
test_case->compiler_args.append("test");
test_case->compiler_args.append("--output");
test_case->compiler_args.append(tmp_exe_path);
test_cases.append(test_case);
}
static TestCase *add_parseh_case(const char *case_name, AllowWarnings allow_warnings,
const char *source, size_t count, ...)
{
va_list ap;
va_start(ap, count);
TestCase *test_case = allocate<TestCase>(1);
test_case->case_name = case_name;
test_case->is_parseh = true;
test_case->allow_warnings = allow_warnings;
test_case->source_files.resize(1);
test_case->source_files.at(0).relative_path = tmp_h_path;
test_case->source_files.at(0).source_code = source;
for (size_t i = 0; i < count; i += 1) {
const char *arg = va_arg(ap, const char *);
test_case->compile_errors.append(arg);
}
test_case->compiler_args.append("parseh");
test_case->compiler_args.append(tmp_h_path);
//test_case->compiler_args.append("--verbose");
test_cases.append(test_case);
va_end(ap);
return test_case;
}
static void add_compiling_test_cases(void) {
add_simple_case_libc("hello world with libc", R"SOURCE(
const c = @cImport(@cInclude("stdio.h"));
export fn main(argc: c_int, argv: &&u8) -> c_int {
_ = c.puts(c"Hello, world!");
return 0;
}
)SOURCE", "Hello, world!" NL);
{
TestCase *tc = add_simple_case("multiple files with private function", R"SOURCE(
use @import("std").io;
use @import("foo.zig");
pub fn main() -> %void {
privateFunction();
%%stdout.printf("OK 2\n");
}
fn privateFunction() {
printText();
}
)SOURCE", "OK 1\nOK 2\n");
add_source_file(tc, "foo.zig", R"SOURCE(
use @import("std").io;
// purposefully conflicting function with main.zig
// but it's private so it should be OK
fn privateFunction() {
%%stdout.printf("OK 1\n");
}
pub fn printText() {
privateFunction();
}
)SOURCE");
}
{
TestCase *tc = add_simple_case("import segregation", R"SOURCE(
use @import("foo.zig");
use @import("bar.zig");
pub fn main() -> %void {
foo_function();
bar_function();
}
)SOURCE", "OK\nOK\n");
add_source_file(tc, "foo.zig", R"SOURCE(
use @import("std").io;
pub fn foo_function() {
%%stdout.printf("OK\n");
}
)SOURCE");
add_source_file(tc, "bar.zig", R"SOURCE(
use @import("other.zig");
use @import("std").io;
pub fn bar_function() {
if (foo_function()) {
%%stdout.printf("OK\n");
}
}
)SOURCE");
add_source_file(tc, "other.zig", R"SOURCE(
pub fn foo_function() -> bool {
// this one conflicts with the one from foo
return true;
}
)SOURCE");
}
{
TestCase *tc = add_simple_case("two files use import each other", R"SOURCE(
use @import("a.zig");
pub fn main() -> %void {
ok();
}
)SOURCE", "OK\n");
add_source_file(tc, "a.zig", R"SOURCE(
use @import("b.zig");
const io = @import("std").io;
pub const a_text = "OK\n";
pub fn ok() {
%%io.stdout.printf(b_text);
}
)SOURCE");
add_source_file(tc, "b.zig", R"SOURCE(
use @import("a.zig");
pub const b_text = a_text;
)SOURCE");
}
add_simple_case("hello world without libc", R"SOURCE(
const io = @import("std").io;
pub fn main() -> %void {
%%io.stdout.printf("Hello, world!\n{d4} {x3} {c}\n", u32(12), u16(0x12), u8('a'));
}
)SOURCE", "Hello, world!\n0012 012 a\n");
add_simple_case_libc("number literals", R"SOURCE(
const c = @cImport(@cInclude("stdio.h"));
export fn main(argc: c_int, argv: &&u8) -> c_int {
_ = c.printf(c"\n");
_ = c.printf(c"0: %llu\n",
u64(0));
_ = c.printf(c"320402575052271: %llu\n",
u64(320402575052271));
_ = c.printf(c"0x01236789abcdef: %llu\n",
u64(0x01236789abcdef));
_ = c.printf(c"0xffffffffffffffff: %llu\n",
u64(0xffffffffffffffff));
_ = c.printf(c"0x000000ffffffffffffffff: %llu\n",
u64(0x000000ffffffffffffffff));
_ = c.printf(c"0o1777777777777777777777: %llu\n",
u64(0o1777777777777777777777));
_ = c.printf(c"0o0000001777777777777777777777: %llu\n",
u64(0o0000001777777777777777777777));
_ = c.printf(c"0b1111111111111111111111111111111111111111111111111111111111111111: %llu\n",
u64(0b1111111111111111111111111111111111111111111111111111111111111111));
_ = c.printf(c"0b0000001111111111111111111111111111111111111111111111111111111111111111: %llu\n",
u64(0b0000001111111111111111111111111111111111111111111111111111111111111111));
_ = c.printf(c"\n");
_ = c.printf(c"0.0: %a\n",
f64(0.0));
_ = c.printf(c"0e0: %a\n",
f64(0e0));
_ = c.printf(c"0.0e0: %a\n",
f64(0.0e0));
_ = c.printf(c"000000000000000000000000000000000000000000000000000000000.0e0: %a\n",
f64(000000000000000000000000000000000000000000000000000000000.0e0));
_ = c.printf(c"0.000000000000000000000000000000000000000000000000000000000e0: %a\n",
f64(0.000000000000000000000000000000000000000000000000000000000e0));
_ = c.printf(c"0.0e000000000000000000000000000000000000000000000000000000000: %a\n",
f64(0.0e000000000000000000000000000000000000000000000000000000000));
_ = c.printf(c"1.0: %a\n",
f64(1.0));
_ = c.printf(c"10.0: %a\n",
f64(10.0));
_ = c.printf(c"10.5: %a\n",
f64(10.5));
_ = c.printf(c"10.5e5: %a\n",
f64(10.5e5));
_ = c.printf(c"10.5e+5: %a\n",
f64(10.5e+5));
_ = c.printf(c"50.0e-2: %a\n",
f64(50.0e-2));
_ = c.printf(c"50e-2: %a\n",
f64(50e-2));
_ = c.printf(c"\n");
_ = c.printf(c"0x1.0: %a\n",
f64(0x1.0));
_ = c.printf(c"0x10.0: %a\n",
f64(0x10.0));
_ = c.printf(c"0x100.0: %a\n",
f64(0x100.0));
_ = c.printf(c"0x103.0: %a\n",
f64(0x103.0));
_ = c.printf(c"0x103.7: %a\n",
f64(0x103.7));
_ = c.printf(c"0x103.70: %a\n",
f64(0x103.70));
_ = c.printf(c"0x103.70p4: %a\n",
f64(0x103.70p4));
_ = c.printf(c"0x103.70p5: %a\n",
f64(0x103.70p5));
_ = c.printf(c"0x103.70p+5: %a\n",
f64(0x103.70p+5));
_ = c.printf(c"0x103.70p-5: %a\n",
f64(0x103.70p-5));
_ = c.printf(c"\n");
_ = c.printf(c"0b10100.00010e0: %a\n",
f64(0b10100.00010e0));
_ = c.printf(c"0o10700.00010e0: %a\n",
f64(0o10700.00010e0));
return 0;
}
)SOURCE", R"OUTPUT(
0: 0
320402575052271: 320402575052271
0x01236789abcdef: 320402575052271
0xffffffffffffffff: 18446744073709551615
0x000000ffffffffffffffff: 18446744073709551615
0o1777777777777777777777: 18446744073709551615
0o0000001777777777777777777777: 18446744073709551615
0b1111111111111111111111111111111111111111111111111111111111111111: 18446744073709551615
0b0000001111111111111111111111111111111111111111111111111111111111111111: 18446744073709551615
0.0: 0x0p+0
0e0: 0x0p+0
0.0e0: 0x0p+0
000000000000000000000000000000000000000000000000000000000.0e0: 0x0p+0
0.000000000000000000000000000000000000000000000000000000000e0: 0x0p+0
0.0e000000000000000000000000000000000000000000000000000000000: 0x0p+0
1.0: 0x1p+0
10.0: 0x1.4p+3
10.5: 0x1.5p+3
10.5e5: 0x1.0059p+20
10.5e+5: 0x1.0059p+20
50.0e-2: 0x1p-1
50e-2: 0x1p-1
0x1.0: 0x1p+0
0x10.0: 0x1p+4
0x100.0: 0x1p+8
0x103.0: 0x1.03p+8
0x103.7: 0x1.037p+8
0x103.70: 0x1.037p+8
0x103.70p4: 0x1.037p+12
0x103.70p5: 0x1.037p+13
0x103.70p+5: 0x1.037p+13
0x103.70p-5: 0x1.037p+3
0b10100.00010e0: 0x1.41p+4
0o10700.00010e0: 0x1.1c0001p+12
)OUTPUT");
add_simple_case("order-independent declarations", R"SOURCE(
const io = @import("std").io;
const z = io.stdin_fileno;
const x : @typeOf(y) = 1234;
const y : u16 = 5678;
pub fn main() -> %void {
var x_local : i32 = print_ok(x);
}
fn print_ok(val: @typeOf(x)) -> @typeOf(foo) {
%%io.stdout.printf("OK\n");
return 0;
}
const foo : i32 = 0;
)SOURCE", "OK\n");
add_simple_case_libc("expose function pointer to C land", R"SOURCE(
const c = @cImport(@cInclude("stdlib.h"));
export fn compare_fn(a: ?&const c_void, b: ?&const c_void) -> c_int {
const a_int = @ptrcast(&i32, a ?? unreachable);
const b_int = @ptrcast(&i32, b ?? unreachable);
if (*a_int < *b_int) {
-1
} else if (*a_int > *b_int) {
1
} else {
c_int(0)
}
}
export fn main() -> c_int {
var array = []u32 { 1, 7, 3, 2, 0, 9, 4, 8, 6, 5 };
c.qsort(@ptrcast(&c_void, &array[0]), c_ulong(array.len), @sizeOf(i32), compare_fn);
for (array) |item, i| {
if (item != i) {
c.abort();
}
}
return 0;
}
)SOURCE", "");
add_simple_case_libc("casting between float and integer types", R"SOURCE(
const c = @cImport(@cInclude("stdio.h"));
export fn main(argc: c_int, argv: &&u8) -> c_int {
const small: f32 = 3.25;
const x: f64 = small;
const y = i32(x);
const z = f64(y);
_ = c.printf(c"%.2f\n%d\n%.2f\n%.2f\n", x, y, z, f64(-0.4));
return 0;
}
)SOURCE", "3.25\n3\n3.00\n-0.40\n");
add_simple_case("same named methods in incomplete struct", R"SOURCE(
const io = @import("std").io;
const Foo = struct {
field1: Bar,
fn method(a: &const Foo) -> bool { true }
};
const Bar = struct {
field2: i32,
fn method(b: &const Bar) -> bool { true }
};
pub fn main() -> %void {
const bar = Bar {.field2 = 13,};
const foo = Foo {.field1 = bar,};
if (!foo.method()) {
%%io.stdout.printf("BAD\n");
}
if (!bar.method()) {
%%io.stdout.printf("BAD\n");
}
%%io.stdout.printf("OK\n");
}
)SOURCE", "OK\n");
add_simple_case("defer with only fallthrough", R"SOURCE(
const io = @import("std").io;
pub fn main() -> %void {
%%io.stdout.printf("before\n");
defer %%io.stdout.printf("defer1\n");
defer %%io.stdout.printf("defer2\n");
defer %%io.stdout.printf("defer3\n");
%%io.stdout.printf("after\n");
}
)SOURCE", "before\nafter\ndefer3\ndefer2\ndefer1\n");
add_simple_case("defer with return", R"SOURCE(
const io = @import("std").io;
const os = @import("std").os;
pub fn main() -> %void {
%%io.stdout.printf("before\n");
defer %%io.stdout.printf("defer1\n");
defer %%io.stdout.printf("defer2\n");
if (os.args.count() == 1) return;
defer %%io.stdout.printf("defer3\n");
%%io.stdout.printf("after\n");
}
)SOURCE", "before\ndefer2\ndefer1\n");
add_simple_case("%defer and it fails", R"SOURCE(
const io = @import("std").io;
pub fn main() -> %void {
do_test() %% return;
}
fn do_test() -> %void {
%%io.stdout.printf("before\n");
defer %%io.stdout.printf("defer1\n");
%defer %%io.stdout.printf("deferErr\n");
%return its_gonna_fail();
defer %%io.stdout.printf("defer3\n");
%%io.stdout.printf("after\n");
}
error IToldYouItWouldFail;
fn its_gonna_fail() -> %void {
return error.IToldYouItWouldFail;
}
)SOURCE", "before\ndeferErr\ndefer1\n");
add_simple_case("%defer and it passes", R"SOURCE(
const io = @import("std").io;
pub fn main() -> %void {
do_test() %% return;
}
fn do_test() -> %void {
%%io.stdout.printf("before\n");
defer %%io.stdout.printf("defer1\n");
%defer %%io.stdout.printf("deferErr\n");
%return its_gonna_pass();
defer %%io.stdout.printf("defer3\n");
%%io.stdout.printf("after\n");
}
fn its_gonna_pass() -> %void { }
)SOURCE", "before\nafter\ndefer3\ndefer1\n");
{
TestCase *tc = add_simple_case("@embedFile", R"SOURCE(
const foo_txt = @embedFile("foo.txt");
const io = @import("std").io;
pub fn main() -> %void {
%%io.stdout.printf(foo_txt);
}
)SOURCE", "1234\nabcd\n");
add_source_file(tc, "foo.txt", "1234\nabcd\n");
}
}
////////////////////////////////////////////////////////////////////////////////////
static void add_compile_failure_test_cases(void) {
add_compile_fail_case("multiple function definitions", R"SOURCE(
fn a() {}
fn a() {}
export fn entry() { a(); }
)SOURCE", 1, ".tmp_source.zig:3:1: error: redefinition of 'a'");
add_compile_fail_case("unreachable with return", R"SOURCE(
fn a() -> noreturn {return;}
export fn entry() { a(); }
)SOURCE", 1, ".tmp_source.zig:2:21: error: expected type 'noreturn', found 'void'");
add_compile_fail_case("control reaches end of non-void function", R"SOURCE(
fn a() -> i32 {}
export fn entry() { _ = a(); }
)SOURCE", 1, ".tmp_source.zig:2:15: error: expected type 'i32', found 'void'");
add_compile_fail_case("undefined function call", R"SOURCE(
export fn a() {
b();
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: use of undeclared identifier 'b'");
add_compile_fail_case("wrong number of arguments", R"SOURCE(
export fn a() {
b(1);
}
fn b(a: i32, b: i32, c: i32) { }
)SOURCE", 1, ".tmp_source.zig:3:6: error: expected 3 arguments, found 1");
add_compile_fail_case("invalid type", R"SOURCE(
fn a() -> bogus {}
export fn entry() { _ = a(); }
)SOURCE", 1, ".tmp_source.zig:2:11: error: use of undeclared identifier 'bogus'");
add_compile_fail_case("pointer to unreachable", R"SOURCE(
fn a() -> &noreturn {}
export fn entry() { _ = a(); }
)SOURCE", 1, ".tmp_source.zig:2:12: error: pointer to unreachable not allowed");
add_compile_fail_case("unreachable code", R"SOURCE(
export fn a() {
return;
b();
}
fn b() {}
)SOURCE", 1, ".tmp_source.zig:4:6: error: unreachable code");
add_compile_fail_case("bad import", R"SOURCE(
const bogus = @import("bogus-does-not-exist.zig");
export fn entry() { bogus.bogo(); }
)SOURCE", 1, ".tmp_source.zig:2:15: error: unable to find 'bogus-does-not-exist.zig'");
add_compile_fail_case("undeclared identifier", R"SOURCE(
export fn a() {
b +
c
}
)SOURCE", 2,
".tmp_source.zig:3:5: error: use of undeclared identifier 'b'",
".tmp_source.zig:4:5: error: use of undeclared identifier 'c'");
add_compile_fail_case("parameter redeclaration", R"SOURCE(
fn f(a : i32, a : i32) {
}
export fn entry() { f(1, 2); }
)SOURCE", 1, ".tmp_source.zig:2:15: error: redeclaration of variable 'a'");
add_compile_fail_case("local variable redeclaration", R"SOURCE(
export fn f() {
const a : i32 = 0;
const a = 0;
}
)SOURCE", 1, ".tmp_source.zig:4:5: error: redeclaration of variable 'a'");
add_compile_fail_case("local variable redeclares parameter", R"SOURCE(
fn f(a : i32) {
const a = 0;
}
export fn entry() { f(1); }
)SOURCE", 1, ".tmp_source.zig:3:5: error: redeclaration of variable 'a'");
add_compile_fail_case("variable has wrong type", R"SOURCE(
export fn f() -> i32 {
const a = c"a";
a
}
)SOURCE", 1, ".tmp_source.zig:4:5: error: expected type 'i32', found '&const u8'");
add_compile_fail_case("if condition is bool, not int", R"SOURCE(
export fn f() {
if (0) {}
}
)SOURCE", 1, ".tmp_source.zig:3:9: error: integer value 0 cannot be implicitly casted to type 'bool'");
add_compile_fail_case("assign unreachable", R"SOURCE(
export fn f() {
const a = return;
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: unreachable code");
add_compile_fail_case("unreachable variable", R"SOURCE(
export fn f() {
const a: noreturn = {};
}
)SOURCE", 1, ".tmp_source.zig:3:14: error: variable of type 'noreturn' not allowed");
add_compile_fail_case("unreachable parameter", R"SOURCE(
fn f(a: noreturn) {}
export fn entry() { f(); }
)SOURCE", 1, ".tmp_source.zig:2:9: error: parameter of type 'noreturn' not allowed");
add_compile_fail_case("bad assignment target", R"SOURCE(
export fn f() {
3 = 3;
}
)SOURCE", 1, ".tmp_source.zig:3:7: error: cannot assign to constant");
add_compile_fail_case("assign to constant variable", R"SOURCE(
export fn f() {
const a = 3;
a = 4;
}
)SOURCE", 1, ".tmp_source.zig:4:7: error: cannot assign to constant");
add_compile_fail_case("use of undeclared identifier", R"SOURCE(
export fn f() {
b = 3;
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: use of undeclared identifier 'b'");
add_compile_fail_case("const is a statement, not an expression", R"SOURCE(
export fn f() {
(const a = 0);
}
)SOURCE", 1, ".tmp_source.zig:3:6: error: invalid token: 'const'");
add_compile_fail_case("array access of undeclared identifier", R"SOURCE(
export fn f() {
i[i] = i[i];
}
)SOURCE", 2, ".tmp_source.zig:3:5: error: use of undeclared identifier 'i'",
".tmp_source.zig:3:12: error: use of undeclared identifier 'i'");
add_compile_fail_case("array access of non array", R"SOURCE(
export fn f() {
var bad : bool = undefined;
bad[bad] = bad[bad];
}
)SOURCE", 2, ".tmp_source.zig:4:8: error: array access of non-array type 'bool'",
".tmp_source.zig:4:19: error: array access of non-array type 'bool'");
add_compile_fail_case("array access with non integer index", R"SOURCE(
export fn f() {
var array = "aoeu";
var bad = false;
array[bad] = array[bad];
}
)SOURCE", 2, ".tmp_source.zig:5:11: error: expected type 'usize', found 'bool'",
".tmp_source.zig:5:24: error: expected type 'usize', found 'bool'");
add_compile_fail_case("write to const global variable", R"SOURCE(
const x : i32 = 99;
fn f() {
x = 1;
}
export fn entry() { f(); }
)SOURCE", 1, ".tmp_source.zig:4:7: error: cannot assign to constant");
add_compile_fail_case("missing else clause", R"SOURCE(
fn f(b: bool) {
const x : i32 = if (b) { 1 };
const y = if (b) { i32(1) };
}
export fn entry() { f(true); }
)SOURCE", 2, ".tmp_source.zig:3:30: error: integer value 1 cannot be implicitly casted to type 'void'",
".tmp_source.zig:4:15: error: incompatible types: 'i32' and 'void'");
add_compile_fail_case("direct struct loop", R"SOURCE(
const A = struct { a : A, };
export fn entry() -> usize { @sizeOf(A) }
)SOURCE", 1, ".tmp_source.zig:2:11: error: struct 'A' contains itself");
add_compile_fail_case("indirect struct loop", R"SOURCE(
const A = struct { b : B, };
const B = struct { c : C, };
const C = struct { a : A, };
export fn entry() -> usize { @sizeOf(A) }
)SOURCE", 1, ".tmp_source.zig:2:11: error: struct 'A' contains itself");
add_compile_fail_case("invalid struct field", R"SOURCE(
const A = struct { x : i32, };
export fn f() {
var a : A = undefined;
a.foo = 1;
const y = a.bar;
}
)SOURCE", 2,
".tmp_source.zig:5:6: error: no member named 'foo' in 'A'",
".tmp_source.zig:6:16: error: no member named 'bar' in 'A'");
add_compile_fail_case("redefinition of struct", R"SOURCE(
const A = struct { x : i32, };
const A = struct { y : i32, };
)SOURCE", 1, ".tmp_source.zig:3:1: error: redefinition of 'A'");
add_compile_fail_case("redefinition of enums", R"SOURCE(
const A = enum {};
const A = enum {};
)SOURCE", 1, ".tmp_source.zig:3:1: error: redefinition of 'A'");
add_compile_fail_case("redefinition of global variables", R"SOURCE(
var a : i32 = 1;
var a : i32 = 2;
)SOURCE", 2,
".tmp_source.zig:3:1: error: redefinition of 'a'",
".tmp_source.zig:2:1: note: previous definition is here");
add_compile_fail_case("byvalue struct parameter in exported function", R"SOURCE(
const A = struct { x : i32, };
export fn f(a : A) {}
)SOURCE", 1, ".tmp_source.zig:3:13: error: byvalue types not yet supported on extern function parameters");
add_compile_fail_case("byvalue struct return value in exported function", R"SOURCE(
const A = struct { x: i32, };
export fn f() -> A {
A {.x = 1234 }
}
)SOURCE", 1, ".tmp_source.zig:3:18: error: byvalue types not yet supported on extern function return values");
add_compile_fail_case("duplicate field in struct value expression", R"SOURCE(
const A = struct {
x : i32,
y : i32,
z : i32,
};
export fn f() {
const a = A {
.z = 1,
.y = 2,
.x = 3,
.z = 4,
};
}
)SOURCE", 1, ".tmp_source.zig:12:9: error: duplicate field");
add_compile_fail_case("missing field in struct value expression", R"SOURCE(
const A = struct {
x : i32,
y : i32,
z : i32,
};
export fn f() {
// we want the error on the '{' not the 'A' because
// the A could be a complicated expression
const a = A {
.z = 4,
.y = 2,
};
}
)SOURCE", 1, ".tmp_source.zig:10:17: error: missing field: 'x'");
add_compile_fail_case("invalid field in struct value expression", R"SOURCE(
const A = struct {
x : i32,
y : i32,
z : i32,
};
export fn f() {
const a = A {
.z = 4,
.y = 2,
.foo = 42,
};
}
)SOURCE", 1, ".tmp_source.zig:11:9: error: no member named 'foo' in 'A'");
add_compile_fail_case("invalid break expression", R"SOURCE(
export fn f() {
break;
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: 'break' expression outside loop");
add_compile_fail_case("invalid continue expression", R"SOURCE(
export fn f() {
continue;
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: 'continue' expression outside loop");
add_compile_fail_case("invalid maybe type", R"SOURCE(
export fn f() {
if (const x ?= true) { }
}
)SOURCE", 1, ".tmp_source.zig:3:20: error: expected nullable type, found 'bool'");
add_compile_fail_case("cast unreachable", R"SOURCE(
fn f() -> i32 {
i32(return 1)
}
export fn entry() { _ = f(); }
)SOURCE", 1, ".tmp_source.zig:3:8: error: unreachable code");
add_compile_fail_case("invalid builtin fn", R"SOURCE(
fn f() -> @bogus(foo) {
}
export fn entry() { _ = f(); }
)SOURCE", 1, ".tmp_source.zig:2:11: error: invalid builtin function: 'bogus'");
add_compile_fail_case("top level decl dependency loop", R"SOURCE(
const a : @typeOf(b) = 0;
const b : @typeOf(a) = 0;
export fn entry() {
const c = a + b;
}
)SOURCE", 1, ".tmp_source.zig:2:1: error: 'a' depends on itself");
add_compile_fail_case("noalias on non pointer param", R"SOURCE(
fn f(noalias x: i32) {}
export fn entry() { f(1234); }
)SOURCE", 1, ".tmp_source.zig:2:6: error: noalias on non-pointer parameter");
add_compile_fail_case("struct init syntax for array", R"SOURCE(
const foo = []u16{.x = 1024,};
export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
)SOURCE", 1, ".tmp_source.zig:2:18: error: type '[]u16' does not support struct initialization syntax");
add_compile_fail_case("type variables must be constant", R"SOURCE(
var foo = u8;
export fn entry() -> foo {
return 1;
}
)SOURCE", 1, ".tmp_source.zig:2:1: error: variable of type 'type' must be constant");
add_compile_fail_case("variables shadowing types", R"SOURCE(
const Foo = struct {};
const Bar = struct {};
fn f(Foo: i32) {
var Bar : i32 = undefined;
}
export fn entry() {
f(1234);
}
)SOURCE", 4,
".tmp_source.zig:5:6: error: redefinition of 'Foo'",
".tmp_source.zig:2:1: note: previous definition is here",
".tmp_source.zig:6:5: error: redefinition of 'Bar'",
".tmp_source.zig:3:1: note: previous definition is here");
add_compile_fail_case("multiple else prongs in a switch", R"SOURCE(
fn f(x: u32) {
const value: bool = switch (x) {
1234 => false,
else => true,
else => true,
};
}
export fn entry() {
f(1234);
}
)SOURCE", 1, ".tmp_source.zig:6:9: error: multiple else prongs in switch expression");
add_compile_fail_case("global variable initializer must be constant expression", R"SOURCE(
extern fn foo() -> i32;
const x = foo();
export fn entry() -> i32 { x }
)SOURCE", 1, ".tmp_source.zig:3:11: error: unable to evaluate constant expression");
add_compile_fail_case("array concatenation with wrong type", R"SOURCE(
const src = "aoeu";
const derp = usize(1234);
const a = derp ++ "foo";
export fn entry() -> usize { @sizeOf(@typeOf(a)) }
)SOURCE", 1, ".tmp_source.zig:4:11: error: expected array or C string literal, found 'usize'");
add_compile_fail_case("non compile time array concatenation", R"SOURCE(
fn f() -> []u8 {
s ++ "foo"
}
var s: [10]u8 = undefined;
export fn entry() -> usize { @sizeOf(@typeOf(f)) }
)SOURCE", 1, ".tmp_source.zig:3:5: error: unable to evaluate constant expression");
add_compile_fail_case("@cImport with bogus include", R"SOURCE(
const c = @cImport(@cInclude("bogus.h"));
export fn entry() -> usize { @sizeOf(@typeOf(c.bogo)) }
)SOURCE", 2, ".tmp_source.zig:2:11: error: C import failed",
".h:1:10: note: 'bogus.h' file not found");
add_compile_fail_case("address of number literal", R"SOURCE(
const x = 3;
const y = &x;
fn foo() -> &const i32 { y }
export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
)SOURCE", 1, ".tmp_source.zig:4:26: error: expected type '&const i32', found '&const (integer literal)'");
add_compile_fail_case("integer overflow error", R"SOURCE(
const x : u8 = 300;
export fn entry() -> usize { @sizeOf(@typeOf(x)) }
)SOURCE", 1, ".tmp_source.zig:2:16: error: integer value 300 cannot be implicitly casted to type 'u8'");
add_compile_fail_case("incompatible number literals", R"SOURCE(
const x = 2 == 2.0;
export fn entry() -> usize { @sizeOf(@typeOf(x)) }
)SOURCE", 1, ".tmp_source.zig:2:11: error: integer value 2 cannot be implicitly casted to type '(float literal)'");
add_compile_fail_case("missing function call param", R"SOURCE(
const Foo = struct {
a: i32,
b: i32,
fn member_a(foo: &const Foo) -> i32 {
return foo.a;
}
fn member_b(foo: &const Foo) -> i32 {
return foo.b;
}
};
const member_fn_type = @typeOf(Foo.member_a);
const members = []member_fn_type {
Foo.member_a,
Foo.member_b,
};
fn f(foo: &const Foo, index: usize) {
const result = members[index]();
}
export fn entry() -> usize { @sizeOf(@typeOf(f)) }
)SOURCE", 1, ".tmp_source.zig:21:34: error: expected 1 arguments, found 0");
add_compile_fail_case("missing function name and param name", R"SOURCE(
fn () {}
fn f(i32) {}
export fn entry() -> usize { @sizeOf(@typeOf(f)) }
)SOURCE", 2,
".tmp_source.zig:2:1: error: missing function name",
".tmp_source.zig:3:6: error: missing parameter name");
add_compile_fail_case("wrong function type", R"SOURCE(
const fns = []fn(){ a, b, c };
fn a() -> i32 {0}
fn b() -> i32 {1}
fn c() -> i32 {2}
export fn entry() -> usize { @sizeOf(@typeOf(fns)) }
)SOURCE", 1, ".tmp_source.zig:2:21: error: expected type 'fn()', found 'fn() -> i32'");
add_compile_fail_case("extern function pointer mismatch", R"SOURCE(
const fns = [](fn(i32)->i32){ a, b, c };
pub fn a(x: i32) -> i32 {x + 0}
pub fn b(x: i32) -> i32 {x + 1}
export fn c(x: i32) -> i32 {x + 2}
export fn entry() -> usize { @sizeOf(@typeOf(fns)) }
)SOURCE", 1, ".tmp_source.zig:2:37: error: expected type 'fn(i32) -> i32', found 'extern fn(i32) -> i32'");
add_compile_fail_case("implicit cast from f64 to f32", R"SOURCE(
const x : f64 = 1.0;
const y : f32 = x;
export fn entry() -> usize { @sizeOf(@typeOf(y)) }
)SOURCE", 1, ".tmp_source.zig:3:17: error: expected type 'f32', found 'f64'");
add_compile_fail_case("colliding invalid top level functions", R"SOURCE(
fn func() -> bogus {}
fn func() -> bogus {}
export fn entry() -> usize { @sizeOf(@typeOf(func)) }
)SOURCE", 2,
".tmp_source.zig:3:1: error: redefinition of 'func'",
".tmp_source.zig:2:14: error: use of undeclared identifier 'bogus'");
add_compile_fail_case("bogus compile var", R"SOURCE(
const x = @compileVar("bogus");
export fn entry() -> usize { @sizeOf(@typeOf(x)) }
)SOURCE", 1, ".tmp_source.zig:2:23: error: unrecognized compile variable: 'bogus'");
add_compile_fail_case("non constant expression in array size outside function", R"SOURCE(
const Foo = struct {
y: [get()]u8,
};
var global_var: usize = 1;
fn get() -> usize { global_var }
export fn entry() -> usize { @sizeOf(@typeOf(Foo)) }
)SOURCE", 3,
".tmp_source.zig:6:21: error: unable to evaluate constant expression",
".tmp_source.zig:3:12: note: called from here",
".tmp_source.zig:3:8: note: called from here");
add_compile_fail_case("addition with non numbers", R"SOURCE(
const Foo = struct {
field: i32,
};
const x = Foo {.field = 1} + Foo {.field = 2};
export fn entry() -> usize { @sizeOf(@typeOf(x)) }
)SOURCE", 1, ".tmp_source.zig:5:28: error: invalid operands to binary expression: 'Foo' and 'Foo'");
add_compile_fail_case("division by zero", R"SOURCE(
const lit_int_x = 1 / 0;
const lit_float_x = 1.0 / 0.0;
const int_x = i32(1) / i32(0);
const float_x = f32(1.0) / f32(0.0);
export fn entry1() -> usize { @sizeOf(@typeOf(lit_int_x)) }
export fn entry2() -> usize { @sizeOf(@typeOf(lit_float_x)) }
export fn entry3() -> usize { @sizeOf(@typeOf(int_x)) }
export fn entry4() -> usize { @sizeOf(@typeOf(float_x)) }
)SOURCE", 4,
".tmp_source.zig:2:21: error: division by zero is undefined",
".tmp_source.zig:3:25: error: division by zero is undefined",
".tmp_source.zig:4:22: error: division by zero is undefined",
".tmp_source.zig:5:26: error: division by zero is undefined");
add_compile_fail_case("missing switch prong", R"SOURCE(
const Number = enum {
One,
Two,
Three,
Four,
};
fn f(n: Number) -> i32 {
switch (n) {
Number.One => 1,
Number.Two => 2,
Number.Three => i32(3),
}
}
export fn entry() -> usize { @sizeOf(@typeOf(f)) }
)SOURCE", 1, ".tmp_source.zig:9:5: error: enumeration value 'Number.Four' not handled in switch");
add_compile_fail_case("normal string with newline", R"SOURCE(
const foo = "a
b";
export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
)SOURCE", 1, ".tmp_source.zig:2:13: error: newline not allowed in string literal");
add_compile_fail_case("invalid comparison for function pointers", R"SOURCE(
fn foo() {}
const invalid = foo > foo;
export fn entry() -> usize { @sizeOf(@typeOf(invalid)) }
)SOURCE", 1, ".tmp_source.zig:3:21: error: operator not allowed for type 'fn()'");
add_compile_fail_case("generic function instance with non-constant expression", R"SOURCE(
fn foo(comptime x: i32, y: i32) -> i32 { return x + y; }
fn test1(a: i32, b: i32) -> i32 {
return foo(a, b);
}
export fn entry() -> usize { @sizeOf(@typeOf(test1)) }
)SOURCE", 1, ".tmp_source.zig:4:16: error: unable to evaluate constant expression");
add_compile_fail_case("goto jumping into block", R"SOURCE(
export fn f() {
{
a_label:
}
goto a_label;
}
)SOURCE", 1, ".tmp_source.zig:6:5: error: no label in scope named 'a_label'");
add_compile_fail_case("goto jumping past a defer", R"SOURCE(
fn f(b: bool) {
if (b) goto label;
defer derp();
label:
}
fn derp(){}
export fn entry() -> usize { @sizeOf(@typeOf(f)) }
)SOURCE", 1, ".tmp_source.zig:3:12: error: no label in scope named 'label'");
add_compile_fail_case("assign null to non-nullable pointer", R"SOURCE(
const a: &u8 = null;
export fn entry() -> usize { @sizeOf(@typeOf(a)) }
)SOURCE", 1, ".tmp_source.zig:2:16: error: expected type '&u8', found '(null)'");
add_compile_fail_case("indexing an array of size zero", R"SOURCE(
const array = []u8{};
export fn foo() {
const pointer = &array[0];
}
)SOURCE", 1, ".tmp_source.zig:4:27: error: index 0 outside array of size 0");
add_compile_fail_case("compile time division by zero", R"SOURCE(
const y = foo(0);
fn foo(x: i32) -> i32 {
1 / x
}
export fn entry() -> usize { @sizeOf(@typeOf(y)) }
)SOURCE", 2,
".tmp_source.zig:4:7: error: division by zero is undefined",
".tmp_source.zig:2:14: note: called from here");
add_compile_fail_case("branch on undefined value", R"SOURCE(
const x = if (undefined) true else false;
export fn entry() -> usize { @sizeOf(@typeOf(x)) }
)SOURCE", 1, ".tmp_source.zig:2:15: error: use of undefined value");
add_compile_fail_case("endless loop in function evaluation", R"SOURCE(
const seventh_fib_number = fibbonaci(7);
fn fibbonaci(x: i32) -> i32 {
return fibbonaci(x - 1) + fibbonaci(x - 2);
}
export fn entry() -> usize { @sizeOf(@typeOf(seventh_fib_number)) }
)SOURCE", 2,
".tmp_source.zig:4:21: error: evaluation exceeded 1000 backwards branches",
".tmp_source.zig:4:21: note: called from here");
add_compile_fail_case("@embedFile with bogus file", R"SOURCE(
const resource = @embedFile("bogus.txt");
export fn entry() -> usize { @sizeOf(@typeOf(resource)) }
)SOURCE", 2, ".tmp_source.zig:2:29: error: unable to find '", "/bogus.txt'");
add_compile_fail_case("non-const expression in struct literal outside function", R"SOURCE(
const Foo = struct {
x: i32,
};
const a = Foo {.x = get_it()};
extern fn get_it() -> i32;
export fn entry() -> usize { @sizeOf(@typeOf(a)) }
)SOURCE", 1, ".tmp_source.zig:5:21: error: unable to evaluate constant expression");
add_compile_fail_case("non-const expression function call with struct return value outside function", R"SOURCE(
const Foo = struct {
x: i32,
};
const a = get_it();
fn get_it() -> Foo {
global_side_effect = true;
Foo {.x = 13}
}
var global_side_effect = false;
export fn entry() -> usize { @sizeOf(@typeOf(a)) }
)SOURCE", 2,
".tmp_source.zig:7:24: error: unable to evaluate constant expression",
".tmp_source.zig:5:17: note: called from here");
add_compile_fail_case("undeclared identifier error should mark fn as impure", R"SOURCE(
export fn foo() {
test_a_thing();
}
fn test_a_thing() {
bad_fn_call();
}
)SOURCE", 1, ".tmp_source.zig:6:5: error: use of undeclared identifier 'bad_fn_call'");
add_compile_fail_case("illegal comparison of types", R"SOURCE(
fn bad_eql_1(a: []u8, b: []u8) -> bool {
a == b
}
const EnumWithData = enum {
One,
Two: i32,
};
fn bad_eql_2(a: &const EnumWithData, b: &const EnumWithData) -> bool {
*a == *b
}
export fn entry1() -> usize { @sizeOf(@typeOf(bad_eql_1)) }
export fn entry2() -> usize { @sizeOf(@typeOf(bad_eql_2)) }
)SOURCE", 2,
".tmp_source.zig:3:7: error: operator not allowed for type '[]u8'",
".tmp_source.zig:10:8: error: operator not allowed for type 'EnumWithData'");
add_compile_fail_case("non-const switch number literal", R"SOURCE(
export fn foo() {
const x = switch (bar()) {
1, 2 => 1,
3, 4 => 2,
else => 3,
};
}
fn bar() -> i32 {
2
}
)SOURCE", 1, ".tmp_source.zig:3:15: error: unable to infer expression type");
add_compile_fail_case("atomic orderings of cmpxchg - failure stricter than success", R"SOURCE(
export fn f() {
var x: i32 = 1234;
while (!@cmpxchg(&x, 1234, 5678, AtomicOrder.Monotonic, AtomicOrder.SeqCst)) {}
}
)SOURCE", 1, ".tmp_source.zig:4:72: error: failure atomic ordering must be no stricter than success");
add_compile_fail_case("atomic orderings of cmpxchg - success Monotonic or stricter", R"SOURCE(
export fn f() {
var x: i32 = 1234;
while (!@cmpxchg(&x, 1234, 5678, AtomicOrder.Unordered, AtomicOrder.Unordered)) {}
}
)SOURCE", 1, ".tmp_source.zig:4:49: error: success atomic ordering must be Monotonic or stricter");
add_compile_fail_case("negation overflow in function evaluation", R"SOURCE(
const y = neg(-128);
fn neg(x: i8) -> i8 {
-x
}
export fn entry() -> usize { @sizeOf(@typeOf(y)) }
)SOURCE", 2,
".tmp_source.zig:4:5: error: negation caused overflow",
".tmp_source.zig:2:14: note: called from here");
add_compile_fail_case("add overflow in function evaluation", R"SOURCE(
const y = add(65530, 10);
fn add(a: u16, b: u16) -> u16 {
a + b
}
export fn entry() -> usize { @sizeOf(@typeOf(y)) }
)SOURCE", 2,
".tmp_source.zig:4:7: error: operation caused overflow",
".tmp_source.zig:2:14: note: called from here");
add_compile_fail_case("sub overflow in function evaluation", R"SOURCE(
const y = sub(10, 20);
fn sub(a: u16, b: u16) -> u16 {
a - b
}
export fn entry() -> usize { @sizeOf(@typeOf(y)) }
)SOURCE", 2,
".tmp_source.zig:4:7: error: operation caused overflow",
".tmp_source.zig:2:14: note: called from here");
add_compile_fail_case("mul overflow in function evaluation", R"SOURCE(
const y = mul(300, 6000);
fn mul(a: u16, b: u16) -> u16 {
a * b
}
export fn entry() -> usize { @sizeOf(@typeOf(y)) }
)SOURCE", 2,
".tmp_source.zig:4:7: error: operation caused overflow",
".tmp_source.zig:2:14: note: called from here");
add_compile_fail_case("truncate sign mismatch", R"SOURCE(
fn f() -> i8 {
const x: u32 = 10;
@truncate(i8, x)
}
export fn entry() -> usize { @sizeOf(@typeOf(f)) }
)SOURCE", 1, ".tmp_source.zig:4:19: error: expected signed integer type, found 'u32'");
add_compile_fail_case("%return in function with non error return type", R"SOURCE(
export fn f() {
%return something();
}
fn something() -> %void { }
)SOURCE", 1,
".tmp_source.zig:3:5: error: expected type 'void', found 'error'");
add_compile_fail_case("wrong return type for main", R"SOURCE(
pub fn main() { }
)SOURCE", 1, ".tmp_source.zig:2:15: error: expected return type of main to be '%void', instead is 'void'");
add_compile_fail_case("double ?? on main return value", R"SOURCE(
pub fn main() -> ??void {
}
)SOURCE", 1, ".tmp_source.zig:2:18: error: expected return type of main to be '%void', instead is '??void'");
add_compile_fail_case("invalid pointer for var type", R"SOURCE(
extern fn ext() -> usize;
var bytes: [ext()]u8 = undefined;
export fn f() {
for (bytes) |*b, i| {
*b = u8(i);
}
}
)SOURCE", 1, ".tmp_source.zig:3:13: error: unable to evaluate constant expression");
add_compile_fail_case("export function with comptime parameter", R"SOURCE(
export fn foo(comptime x: i32, y: i32) -> i32{
x + y
}
)SOURCE", 1, ".tmp_source.zig:2:15: error: comptime parameter not allowed in extern function");
add_compile_fail_case("extern function with comptime parameter", R"SOURCE(
extern fn foo(comptime x: i32, y: i32) -> i32;
fn f() -> i32 {
foo(1, 2)
}
export fn entry() -> usize { @sizeOf(@typeOf(f)) }
)SOURCE", 1, ".tmp_source.zig:2:15: error: comptime parameter not allowed in extern function");
add_compile_fail_case("convert fixed size array to slice with invalid size", R"SOURCE(
export fn f() {
var array: [5]u8 = undefined;
var foo = ([]const u32)(array)[0];
}
)SOURCE", 1, ".tmp_source.zig:4:28: error: unable to convert [5]u8 to []const u32: size mismatch");
add_compile_fail_case("non-pure function returns type", R"SOURCE(
var a: u32 = 0;
pub fn List(comptime T: type) -> type {
a += 1;
SmallList(T, 8)
}
pub fn SmallList(comptime T: type, comptime STATIC_SIZE: usize) -> type {
struct {
items: []T,
length: usize,
prealloc_items: [STATIC_SIZE]T,
}
}
export fn function_with_return_type_type() {
var list: List(i32) = undefined;
list.length = 10;
}
)SOURCE", 2,
".tmp_source.zig:4:7: error: unable to evaluate constant expression",
".tmp_source.zig:17:19: note: called from here");
add_compile_fail_case("bogus method call on slice", R"SOURCE(
var self = "aoeu";
fn f(m: []const u8) {
m.copy(u8, self[0...], m);
}
export fn entry() -> usize { @sizeOf(@typeOf(f)) }
)SOURCE", 1, ".tmp_source.zig:4:6: error: no member named 'copy' in '[]const u8'");
add_compile_fail_case("wrong number of arguments for method fn call", R"SOURCE(
const Foo = struct {
fn method(self: &const Foo, a: i32) {}
};
fn f(foo: &const Foo) {
foo.method(1, 2);
}
export fn entry() -> usize { @sizeOf(@typeOf(f)) }
)SOURCE", 1, ".tmp_source.zig:7:15: error: expected 2 arguments, found 3");
add_compile_fail_case("assign through constant pointer", R"SOURCE(
export fn f() {
var cstr = c"Hat";
cstr[0] = 'W';
}
)SOURCE", 1, ".tmp_source.zig:4:11: error: cannot assign to constant");
add_compile_fail_case("assign through constant slice", R"SOURCE(
export fn f() {
var cstr: []const u8 = "Hat";
cstr[0] = 'W';
}
)SOURCE", 1, ".tmp_source.zig:4:11: error: cannot assign to constant");
add_compile_fail_case("main function with bogus args type", R"SOURCE(
pub fn main(args: [][]bogus) -> %void {}
)SOURCE", 1, ".tmp_source.zig:2:23: error: use of undeclared identifier 'bogus'");
add_compile_fail_case("for loop missing element param", R"SOURCE(
fn foo(blah: []u8) {
for (blah) { }
}
export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
)SOURCE", 1, ".tmp_source.zig:3:5: error: for loop expression missing element parameter");
add_compile_fail_case("misspelled type with pointer only reference", R"SOURCE(
const JasonHM = u8;
const JasonList = &JsonNode;
const JsonOA = enum {
JSONArray: JsonList,
JSONObject: JasonHM,
};
const JsonType = enum {
JSONNull: void,
JSONInteger: isize,
JSONDouble: f64,
JSONBool: bool,
JSONString: []u8,
JSONArray,
JSONObject,
};
pub const JsonNode = struct {
kind: JsonType,
jobject: ?JsonOA,
};
fn foo() {
var jll: JasonList = undefined;
jll.init(1234);
var jd = JsonNode {.kind = JsonType.JSONArray , .jobject = JsonOA.JSONArray {jll} };
}
export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
)SOURCE", 1, ".tmp_source.zig:6:16: error: use of undeclared identifier 'JsonList'");
add_compile_fail_case("method call with first arg type primitive", R"SOURCE(
const Foo = struct {
x: i32,
fn init(x: i32) -> Foo {
Foo {
.x = x,
}
}
};
export fn f() {
const derp = Foo.init(3);
derp.init();
}
)SOURCE", 1, ".tmp_source.zig:15:5: error: expected type 'i32', found '&const Foo'");
add_compile_fail_case("method call with first arg type wrong container", R"SOURCE(
pub const List = struct {
len: usize,
allocator: &Allocator,
pub fn init(allocator: &Allocator) -> List {
List {
.len = 0,
.allocator = allocator,
}
}
};
pub var global_allocator = Allocator {
.field = 1234,
};
pub const Allocator = struct {
field: i32,
};
export fn foo() {
var x = List.init(&global_allocator);
x.init();
}
)SOURCE", 1, ".tmp_source.zig:24:5: error: expected type '&Allocator', found '&List'");
add_compile_fail_case("binary not on number literal", R"SOURCE(
const TINY_QUANTUM_SHIFT = 4;
const TINY_QUANTUM_SIZE = 1 << TINY_QUANTUM_SHIFT;
var block_aligned_stuff: usize = (4 + TINY_QUANTUM_SIZE) & ~(TINY_QUANTUM_SIZE - 1);
export fn entry() -> usize { @sizeOf(@typeOf(block_aligned_stuff)) }
)SOURCE", 1, ".tmp_source.zig:4:60: error: unable to perform binary not operation on type '(integer literal)'");
{
TestCase *tc = add_compile_fail_case("multiple files with private function error", R"SOURCE(
const foo = @import("foo.zig");
export fn callPrivFunction() {
foo.privateFunction();
}
)SOURCE", 2,
".tmp_source.zig:5:8: error: 'privateFunction' is private",
"foo.zig:2:1: note: declared here");
add_source_file(tc, "foo.zig", R"SOURCE(
fn privateFunction() { }
)SOURCE");
}
add_compile_fail_case("container init with non-type", R"SOURCE(
const zero: i32 = 0;
const a = zero{1};
export fn entry() -> usize { @sizeOf(@typeOf(a)) }
)SOURCE", 1, ".tmp_source.zig:3:11: error: expected type, found 'i32'");
add_compile_fail_case("assign to constant field", R"SOURCE(
const Foo = struct {
field: i32,
};
export fn derp() {
const f = Foo {.field = 1234,};
f.field = 0;
}
)SOURCE", 1, ".tmp_source.zig:7:13: error: cannot assign to constant");
add_compile_fail_case("return from defer expression", R"SOURCE(
pub fn testTrickyDefer() -> %void {
defer canFail() %% {};
defer %return canFail();
const a = maybeInt() ?? return;
}
fn canFail() -> %void { }
pub fn maybeInt() -> ?i32 {
return 0;
}
export fn entry() -> usize { @sizeOf(@typeOf(testTrickyDefer)) }
)SOURCE", 1, ".tmp_source.zig:5:11: error: cannot return from defer expression");
add_compile_fail_case("attempt to access var args out of bounds", R"SOURCE(
fn add(args: ...) -> i32 {
args[0] + args[1]
}
fn foo() -> i32 {
add(i32(1234))
}
export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
)SOURCE", 2,
".tmp_source.zig:3:19: error: index 1 outside argument list of size 1",
".tmp_source.zig:7:8: note: called from here");
add_compile_fail_case("pass integer literal to var args", R"SOURCE(
fn add(args: ...) -> i32 {
var sum = i32(0);
{comptime var i: usize = 0; inline while (i < args.len; i += 1) {
sum += args[i];
}}
return sum;
}
fn bar() -> i32 {
add(1, 2, 3, 4)
}
export fn entry() -> usize { @sizeOf(@typeOf(bar)) }
)SOURCE", 1, ".tmp_source.zig:11:9: error: parameter of type '(integer literal)' requires comptime");
add_compile_fail_case("assign too big number to u16", R"SOURCE(
export fn foo() {
var vga_mem: u16 = 0xB8000;
}
)SOURCE", 1, ".tmp_source.zig:3:24: error: integer value 753664 cannot be implicitly casted to type 'u16'");
add_compile_fail_case("set global variable alignment to non power of 2", R"SOURCE(
const some_data: [100]u8 = {
@setGlobalAlign(some_data, 3);
undefined
};
export fn entry() -> usize { @sizeOf(@typeOf(some_data)) }
)SOURCE", 1, ".tmp_source.zig:3:32: error: alignment value must be power of 2");
add_compile_fail_case("compile log", R"SOURCE(
export fn foo() {
comptime bar(12, "hi");
}
fn bar(a: i32, b: []const u8) {
@compileLog("begin");
@compileLog("a", a, "b", b);
@compileLog("end");
}
)SOURCE", 6,
".tmp_source.zig:6:5: error: found compile log statement",
".tmp_source.zig:3:17: note: called from here",
".tmp_source.zig:7:5: error: found compile log statement",
".tmp_source.zig:3:17: note: called from here",
".tmp_source.zig:8:5: error: found compile log statement",
".tmp_source.zig:3:17: note: called from here");
add_compile_fail_case("casting bit offset pointer to regular pointer", R"SOURCE(
const u2 = @intType(false, 2);
const u3 = @intType(false, 3);
const BitField = packed struct {
a: u3,
b: u3,
c: u2,
};
fn foo(bit_field: &const BitField) -> u3 {
return bar(&bit_field.b);
}
fn bar(x: &const u3) -> u3 {
return *x;
}
export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
)SOURCE", 1, ".tmp_source.zig:12:26: error: expected type '&const u3', found '&:3:6 const u3'");
add_compile_fail_case("referring to a struct that is invalid", R"SOURCE(
const UsbDeviceRequest = struct {
Type: u8,
};
export fn foo() {
comptime assert(@sizeOf(UsbDeviceRequest) == 0x8);
}
fn assert(ok: bool) {
if (!ok) unreachable;
}
)SOURCE", 2,
".tmp_source.zig:11:14: error: unable to evaluate constant expression",
".tmp_source.zig:7:20: note: called from here");
add_compile_fail_case("control flow uses comptime var at runtime", R"SOURCE(
export fn foo() {
comptime var i = 0;
while (i < 5; i += 1) {
bar();
}
}
fn bar() { }
)SOURCE", 2,
".tmp_source.zig:4:5: error: control flow attempts to use compile-time variable at runtime",
".tmp_source.zig:4:21: note: compile-time variable assigned here");
add_compile_fail_case("ignored return value", R"SOURCE(
export fn foo() {
bar();
}
fn bar() -> i32 { 0 }
)SOURCE", 1, ".tmp_source.zig:3:8: error: return value ignored");
add_compile_fail_case("integer literal on a non-comptime var", R"SOURCE(
export fn foo() {
var i = 0;
while (i < 10; i += 1) { }
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: unable to infer variable type");
add_compile_fail_case("undefined literal on a non-comptime var", R"SOURCE(
export fn foo() {
var i = undefined;
i = i32(1);
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: unable to infer variable type");
add_compile_fail_case("dereference an array", R"SOURCE(
var s_buffer: [10]u8 = undefined;
pub fn pass(in: []u8) -> []u8 {
var out = &s_buffer;
*out[0] = in[0];
return (*out)[0...1];
}
export fn entry() -> usize { @sizeOf(@typeOf(pass)) }
)SOURCE", 1, ".tmp_source.zig:5:5: error: attempt to dereference non pointer type '[10]u8'");
add_compile_fail_case("pass const ptr to mutable ptr fn", R"SOURCE(
fn foo() -> bool {
const a = ([]const u8)("a");
const b = &a;
return ptrEql(b, b);
}
fn ptrEql(a: &[]const u8, b: &[]const u8) -> bool {
return true;
}
export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
)SOURCE", 1, ".tmp_source.zig:5:19: error: expected type '&[]const u8', found '&const []const u8'");
{
TestCase *tc = add_compile_fail_case("export collision", R"SOURCE(
const foo = @import("foo.zig");
export fn bar() -> usize {
return foo.baz;
}
)SOURCE", 2,
"foo.zig:2:8: error: exported symbol collision: 'bar'",
".tmp_source.zig:4:8: note: other symbol is here");
add_source_file(tc, "foo.zig", R"SOURCE(
export fn bar() {}
pub const baz = 1234;
)SOURCE");
}
add_compile_fail_case("pass non-copyable type by value to function", R"SOURCE(
const Point = struct { x: i32, y: i32, };
fn foo(p: Point) { }
export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
)SOURCE", 1, ".tmp_source.zig:3:11: error: type 'Point' is not copyable; cannot pass by value");
add_compile_fail_case("implicit cast from array to mutable slice", R"SOURCE(
var global_array: [10]i32 = undefined;
fn foo(param: []i32) {}
export fn entry() {
foo(global_array);
}
)SOURCE", 1, ".tmp_source.zig:5:9: error: expected type '[]i32', found '[10]i32'");
add_compile_fail_case("ptrcast to non-pointer", R"SOURCE(
export fn entry(a: &i32) -> usize {
return @ptrcast(usize, a);
}
)SOURCE", 1, ".tmp_source.zig:3:21: error: expected pointer, found 'usize'");
add_compile_fail_case("too many error values to cast to small integer", R"SOURCE(
error A; error B; error C; error D; error E; error F; error G; error H;
const u2 = @intType(false, 2);
fn foo(e: error) -> u2 {
return u2(e);
}
export fn entry() -> usize { @sizeOf(@typeOf(foo)) }
)SOURCE", 1, ".tmp_source.zig:5:14: error: too many error values to fit in 'u2'");
add_compile_fail_case("asm at compile time", R"SOURCE(
comptime {
doSomeAsm();
}
fn doSomeAsm() {
asm volatile (
\\.globl aoeu;
\\.type aoeu, @function;
\\.set aoeu, derp;
);
}
)SOURCE", 1, ".tmp_source.zig:7:5: error: unable to evaluate constant expression");
add_compile_fail_case("invalid member of builtin enum", R"SOURCE(
export fn entry() {
const foo = Arch.x86;
}
)SOURCE", 1, ".tmp_source.zig:3:21: error: container 'Arch' has no member called 'x86'");
}
//////////////////////////////////////////////////////////////////////////////
static void add_debug_safety_test_cases(void) {
add_debug_safety_case("calling panic", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
pub fn main() -> %void {
@panic("oh no");
}
)SOURCE");
add_debug_safety_case("out of bounds slice access", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
pub fn main() -> %void {
const a = []i32{1, 2, 3, 4};
baz(bar(a));
}
fn bar(a: []const i32) -> i32 {
a[4]
}
fn baz(a: i32) { }
)SOURCE");
add_debug_safety_case("integer addition overflow", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
error Whatever;
pub fn main() -> %void {
const x = add(65530, 10);
if (x == 0) return error.Whatever;
}
fn add(a: u16, b: u16) -> u16 {
a + b
}
)SOURCE");
add_debug_safety_case("integer subtraction overflow", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
error Whatever;
pub fn main() -> %void {
const x = sub(10, 20);
if (x == 0) return error.Whatever;
}
fn sub(a: u16, b: u16) -> u16 {
a - b
}
)SOURCE");
add_debug_safety_case("integer multiplication overflow", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
error Whatever;
pub fn main() -> %void {
const x = mul(300, 6000);
if (x == 0) return error.Whatever;
}
fn mul(a: u16, b: u16) -> u16 {
a * b
}
)SOURCE");
add_debug_safety_case("integer negation overflow", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
error Whatever;
pub fn main() -> %void {
const x = neg(-32768);
if (x == 32767) return error.Whatever;
}
fn neg(a: i16) -> i16 {
-a
}
)SOURCE");
add_debug_safety_case("signed integer division overflow", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
error Whatever;
pub fn main() -> %void {
const x = div(-32768, -1);
if (x == 32767) return error.Whatever;
}
fn div(a: i16, b: i16) -> i16 {
a / b
}
)SOURCE");
add_debug_safety_case("signed shift left overflow", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
error Whatever;
pub fn main() -> %void {
const x = shl(-16385, 1);
if (x == 0) return error.Whatever;
}
fn shl(a: i16, b: i16) -> i16 {
a << b
}
)SOURCE");
add_debug_safety_case("unsigned shift left overflow", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
error Whatever;
pub fn main() -> %void {
const x = shl(0b0010111111111111, 3);
if (x == 0) return error.Whatever;
}
fn shl(a: u16, b: u16) -> u16 {
a << b
}
)SOURCE");
add_debug_safety_case("integer division by zero", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
error Whatever;
pub fn main() -> %void {
const x = div0(999, 0);
}
fn div0(a: i32, b: i32) -> i32 {
a / b
}
)SOURCE");
add_debug_safety_case("exact division failure", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
error Whatever;
pub fn main() -> %void {
const x = divExact(10, 3);
if (x == 0) return error.Whatever;
}
fn divExact(a: i32, b: i32) -> i32 {
@divExact(a, b)
}
)SOURCE");
add_debug_safety_case("cast []u8 to bigger slice of wrong size", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
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: []const u8) -> []const i32 {
([]const i32)(slice)
}
)SOURCE");
add_debug_safety_case("value does not fit in shortening cast", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
error Whatever;
pub fn main() -> %void {
const x = shorten_cast(200);
if (x == 0) return error.Whatever;
}
fn shorten_cast(x: i32) -> i8 {
i8(x)
}
)SOURCE");
add_debug_safety_case("signed integer not fitting in cast to unsigned integer", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
error Whatever;
pub fn main() -> %void {
const x = unsigned_cast(-10);
if (x == 0) return error.Whatever;
}
fn unsigned_cast(x: i32) -> u32 {
u32(x)
}
)SOURCE");
add_debug_safety_case("unwrap error", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
error Whatever;
pub fn main() -> %void {
%%bar();
}
fn bar() -> %void {
return error.Whatever;
}
)SOURCE");
add_debug_safety_case("cast integer to error and no code matches", R"SOURCE(
pub fn panic(message: []const u8) -> noreturn {
@breakpoint();
while (true) {}
}
pub fn main() -> %void {
_ = bar(9999);
}
fn bar(x: u32) -> error {
return error(x);
}
)SOURCE");
}
//////////////////////////////////////////////////////////////////////////////
static void add_parseh_test_cases(void) {
add_parseh_case("simple data types", AllowWarningsYes, R"SOURCE(
#include <stdint.h>
int foo(char a, unsigned char b, signed char c);
int foo(char a, unsigned char b, signed char c); // test a duplicate prototype
void bar(uint8_t a, uint16_t b, uint32_t c, uint64_t d);
void baz(int8_t a, int16_t b, int32_t c, int64_t d);
)SOURCE", 3,
"pub extern fn foo(a: u8, b: u8, c: i8) -> c_int;",
"pub extern fn bar(a: u8, b: u16, c: u32, d: u64);",
"pub extern fn baz(a: i8, b: i16, c: i32, d: i64);");
add_parseh_case("noreturn attribute", AllowWarningsNo, R"SOURCE(
void foo(void) __attribute__((noreturn));
)SOURCE", 1, R"OUTPUT(pub extern fn foo() -> noreturn;)OUTPUT");
add_parseh_case("enums", AllowWarningsNo, R"SOURCE(
enum Foo {
FooA,
FooB,
Foo1,
};
)SOURCE", 5, R"(pub const enum_Foo = extern enum {
A,
B,
@"1",
};)",
R"(pub const FooA = 0;)",
R"(pub const FooB = 1;)",
R"(pub const Foo1 = 2;)",
R"(pub const Foo = enum_Foo;)");
add_parseh_case("restrict -> noalias", AllowWarningsNo, R"SOURCE(
void foo(void *restrict bar, void *restrict);
)SOURCE", 1, R"OUTPUT(pub extern fn foo(noalias bar: ?&c_void, noalias arg1: ?&c_void);)OUTPUT");
add_parseh_case("simple struct", AllowWarningsNo, R"SOURCE(
struct Foo {
int x;
char *y;
};
)SOURCE", 2,
R"OUTPUT(const struct_Foo = extern struct {
x: c_int,
y: ?&u8,
};)OUTPUT", R"OUTPUT(pub const Foo = struct_Foo;)OUTPUT");
add_parseh_case("qualified struct and enum", AllowWarningsNo, R"SOURCE(
struct Foo {
int x;
int y;
};
enum Bar {
BarA,
BarB,
};
void func(struct Foo *a, enum Bar **b);
)SOURCE", 7, R"OUTPUT(pub const struct_Foo = extern struct {
x: c_int,
y: c_int,
};)OUTPUT", R"OUTPUT(pub const enum_Bar = extern enum {
A,
B,
};)OUTPUT",
R"OUTPUT(pub const BarA = 0;)OUTPUT",
R"OUTPUT(pub const BarB = 1;)OUTPUT",
"pub extern fn func(a: ?&struct_Foo, b: ?&?&enum_Bar);",
R"OUTPUT(pub const Foo = struct_Foo;)OUTPUT",
R"OUTPUT(pub const Bar = enum_Bar;)OUTPUT");
add_parseh_case("constant size array", AllowWarningsNo, R"SOURCE(
void func(int array[20]);
)SOURCE", 1, "pub extern fn func(array: ?&c_int);");
add_parseh_case("self referential struct with function pointer",
AllowWarningsNo, R"SOURCE(
struct Foo {
void (*derp)(struct Foo *foo);
};
)SOURCE", 2, R"OUTPUT(pub const struct_Foo = extern struct {
derp: ?extern fn(?&struct_Foo),
};)OUTPUT", R"OUTPUT(pub const Foo = struct_Foo;)OUTPUT");
add_parseh_case("struct prototype used in func", AllowWarningsNo, R"SOURCE(
struct Foo;
struct Foo *some_func(struct Foo *foo, int x);
)SOURCE", 3, R"OUTPUT(pub type struct_Foo = u8;)OUTPUT",
R"OUTPUT(pub extern fn some_func(foo: ?&struct_Foo, x: c_int) -> ?&struct_Foo;)OUTPUT",
R"OUTPUT(pub const Foo = struct_Foo;)OUTPUT");
add_parseh_case("#define a char literal", AllowWarningsNo, R"SOURCE(
#define A_CHAR 'a'
)SOURCE", 1, R"OUTPUT(pub const A_CHAR = 97;)OUTPUT");
add_parseh_case("#define an unsigned integer literal", AllowWarningsNo,
R"SOURCE(
#define CHANNEL_COUNT 24
)SOURCE", 1, R"OUTPUT(pub const CHANNEL_COUNT = 24;)OUTPUT");
add_parseh_case("#define referencing another #define", AllowWarningsNo,
R"SOURCE(
#define THING2 THING1
#define THING1 1234
)SOURCE", 2,
"pub const THING1 = 1234;",
"pub const THING2 = THING1;");
add_parseh_case("variables", AllowWarningsNo, R"SOURCE(
extern int extern_var;
static const int int_var = 13;
)SOURCE", 2,
"pub extern var extern_var: c_int;",
"pub const int_var: c_int = 13;");
add_parseh_case("circular struct definitions", AllowWarningsNo, R"SOURCE(
struct Bar;
struct Foo {
struct Bar *next;
};
struct Bar {
struct Foo *next;
};
)SOURCE", 2,
R"SOURCE(pub const struct_Bar = extern struct {
next: ?&struct_Foo,
};)SOURCE",
R"SOURCE(pub const struct_Foo = extern struct {
next: ?&struct_Bar,
};)SOURCE");
add_parseh_case("typedef void", AllowWarningsNo, R"SOURCE(
typedef void Foo;
Foo fun(Foo *a);
)SOURCE", 2,
"pub const Foo = c_void;",
"pub extern fn fun(a: ?&c_void);");
add_parseh_case("generate inline func for #define global extern fn", AllowWarningsNo,
R"SOURCE(
extern void (*fn_ptr)(void);
#define foo fn_ptr
extern char (*fn_ptr2)(int, float);
#define bar fn_ptr2
)SOURCE", 4,
"pub extern var fn_ptr: ?extern fn();",
"pub fn foo();",
"pub extern var fn_ptr2: ?extern fn(c_int, f32) -> u8;",
"pub fn bar(arg0: c_int, arg1: f32) -> u8;");
add_parseh_case("#define string", AllowWarningsNo, R"SOURCE(
#define foo "a string"
)SOURCE", 1, "pub const foo: &const u8 = &(c str lit);");
add_parseh_case("__cdecl doesn't mess up function pointers", AllowWarningsNo, R"SOURCE(
void foo(void (__cdecl *fn_ptr)(void));
)SOURCE", 1, "pub extern fn foo(fn_ptr: ?extern fn());");
add_parseh_case("comment after integer literal", AllowWarningsNo, R"SOURCE(
#define SDL_INIT_VIDEO 0x00000020 /**< SDL_INIT_VIDEO implies SDL_INIT_EVENTS */
)SOURCE", 1, "pub const SDL_INIT_VIDEO = 32;");
add_parseh_case("zig keywords in C code", AllowWarningsNo, R"SOURCE(
struct type {
int defer;
};
)SOURCE", 2, R"(pub const struct_type = extern struct {
@"defer": c_int,
};)", R"(pub const @"type" = struct_type;)");
add_parseh_case("macro defines string literal with octal", AllowWarningsNo, R"SOURCE(
#define FOO "aoeu\023 derp"
#define FOO2 "aoeu\0234 derp"
#define FOO_CHAR '\077'
)SOURCE", 3,
R"(pub const FOO: &const u8 = &(c str lit);)",
R"(pub const FOO2: &const u8 = &(c str lit);)",
R"(pub const FOO_CHAR = 63;)");
}
static void run_self_hosted_test(bool is_release_mode) {
Buf self_hosted_tests_file = BUF_INIT;
os_path_join(buf_create_from_str(ZIG_TEST_DIR),
buf_create_from_str("self_hosted.zig"), &self_hosted_tests_file);
Buf zig_stderr = BUF_INIT;
Buf zig_stdout = BUF_INIT;
ZigList<const char *> args = {0};
args.append("test");
args.append(buf_ptr(&self_hosted_tests_file));
if (is_release_mode) {
args.append("--release");
}
Termination term;
os_exec_process(zig_exe, args, &term, &zig_stderr, &zig_stdout);
if (term.how != TerminationIdClean || term.code != 0) {
printf("\nSelf-hosted tests failed:\n");
printf("./zig");
for (size_t i = 0; i < args.length; i += 1) {
printf(" %s", args.at(i));
}
printf("\n%s\n", buf_ptr(&zig_stderr));
exit(1);
}
}
static void run_std_lib_test(bool is_release_mode) {
Buf std_index_file = BUF_INIT;
os_path_join(buf_create_from_str(ZIG_STD_DIR),
buf_create_from_str("index.zig"), &std_index_file);
Buf zig_stderr = BUF_INIT;
Buf zig_stdout = BUF_INIT;
ZigList<const char *> args = {0};
args.append("test");
args.append(buf_ptr(&std_index_file));
if (is_release_mode) {
args.append("--release");
}
Termination term;
os_exec_process(zig_exe, args, &term, &zig_stderr, &zig_stdout);
if (term.how != TerminationIdClean || term.code != 0) {
printf("\nstd lib tests failed:\n");
printf("./zig");
for (size_t i = 0; i < args.length; i += 1) {
printf(" %s", args.at(i));
}
printf("\n%s\n", buf_ptr(&zig_stderr));
exit(1);
}
}
static void add_self_hosted_tests(void) {
{
TestCase *test_case = allocate<TestCase>(1);
test_case->case_name = "self hosted tests (debug)";
test_case->special = TestSpecialSelfHosted;
test_case->is_release_mode = false;
test_cases.append(test_case);
}
{
TestCase *test_case = allocate<TestCase>(1);
test_case->case_name = "self hosted tests (release)";
test_case->special = TestSpecialSelfHosted;
test_case->is_release_mode = true;
test_cases.append(test_case);
}
}
static void add_std_lib_tests(void) {
{
TestCase *test_case = allocate<TestCase>(1);
test_case->case_name = "std (debug)";
test_case->special = TestSpecialStd;
test_case->is_release_mode = false;
test_cases.append(test_case);
}
{
TestCase *test_case = allocate<TestCase>(1);
test_case->case_name = "std (release)";
test_case->special = TestSpecialStd;
test_case->is_release_mode = true;
test_cases.append(test_case);
}
}
static void add_asm_tests(void) {
#if defined(ZIG_OS_LINUX) && defined(ZIG_ARCH_X86_64)
add_asm_case("assemble and link hello world linux x86_64", R"SOURCE(
.text
.globl _start
_start:
mov rax, 1
mov rdi, 1
lea rsi, msg
mov rdx, 14
syscall
mov rax, 60
mov rdi, 0
syscall
.data
msg:
.ascii "Hello, world!\n"
)SOURCE", "Hello, world!\n");
#endif
}
static void print_compiler_invocation(TestCase *test_case) {
printf("%s", zig_exe);
for (size_t i = 0; i < test_case->compiler_args.length; i += 1) {
printf(" %s", test_case->compiler_args.at(i));
}
printf("\n");
}
static void print_linker_invocation(TestCase *test_case) {
printf("%s", zig_exe);
for (size_t i = 0; i < test_case->linker_args.length; i += 1) {
printf(" %s", test_case->linker_args.at(i));
}
printf("\n");
}
static void print_exe_invocation(TestCase *test_case) {
printf("%s", tmp_exe_path);
for (size_t i = 0; i < test_case->program_args.length; i += 1) {
printf(" %s", test_case->program_args.at(i));
}
printf("\n");
}
static void run_test(TestCase *test_case) {
if (test_case->special == TestSpecialSelfHosted) {
return run_self_hosted_test(test_case->is_release_mode);
} else if (test_case->special == TestSpecialStd) {
return run_std_lib_test(test_case->is_release_mode);
}
for (size_t i = 0; i < test_case->source_files.length; i += 1) {
TestSourceFile *test_source = &test_case->source_files.at(i);
os_write_file(
buf_create_from_str(test_source->relative_path),
buf_create_from_str(test_source->source_code));
}
Buf zig_stderr = BUF_INIT;
Buf zig_stdout = BUF_INIT;
int err;
Termination term;
if ((err = os_exec_process(zig_exe, test_case->compiler_args, &term, &zig_stderr, &zig_stdout))) {
fprintf(stderr, "Unable to exec %s: %s\n", zig_exe, err_str(err));
}
if (!test_case->is_parseh && test_case->compile_errors.length) {
if (term.how != TerminationIdClean || term.code != 0) {
for (size_t i = 0; i < test_case->compile_errors.length; i += 1) {
const char *err_text = test_case->compile_errors.at(i);
if (!strstr(buf_ptr(&zig_stderr), err_text)) {
printf("\n");
printf("========= Expected this compile error: =========\n");
printf("%s\n", err_text);
printf("================================================\n");
print_compiler_invocation(test_case);
printf("%s\n", buf_ptr(&zig_stderr));
exit(1);
}
}
return; // success
} else {
printf("\nCompile failed with return code 0 (Expected failure):\n");
print_compiler_invocation(test_case);
printf("%s\n", buf_ptr(&zig_stderr));
exit(1);
}
}
if (term.how != TerminationIdClean || term.code != 0) {
printf("\nCompile failed:\n");
print_compiler_invocation(test_case);
printf("%s\n", buf_ptr(&zig_stderr));
exit(1);
}
if (test_case->is_parseh) {
if (buf_len(&zig_stderr) > 0) {
printf("\nparseh emitted warnings:\n");
printf("------------------------------\n");
print_compiler_invocation(test_case);
printf("%s\n", buf_ptr(&zig_stderr));
printf("------------------------------\n");
if (test_case->allow_warnings == AllowWarningsNo) {
exit(1);
}
}
for (size_t i = 0; i < test_case->compile_errors.length; i += 1) {
const char *output = test_case->compile_errors.at(i);
if (!strstr(buf_ptr(&zig_stdout), output)) {
printf("\n");
printf("========= Expected this output: =========\n");
printf("%s\n", output);
printf("================================================\n");
print_compiler_invocation(test_case);
printf("%s\n", buf_ptr(&zig_stdout));
exit(1);
}
}
} else {
if (test_case->special == TestSpecialLinkStep) {
Buf link_stderr = BUF_INIT;
Buf link_stdout = BUF_INIT;
int err;
Termination term;
if ((err = os_exec_process(zig_exe, test_case->linker_args, &term, &link_stderr, &link_stdout))) {
fprintf(stderr, "Unable to exec %s: %s\n", zig_exe, err_str(err));
}
if (term.how != TerminationIdClean || term.code != 0) {
printf("\nLink failed:\n");
print_linker_invocation(test_case);
printf("%s\n", buf_ptr(&zig_stderr));
exit(1);
}
}
Buf program_stderr = BUF_INIT;
Buf program_stdout = BUF_INIT;
os_exec_process(tmp_exe_path, test_case->program_args, &term, &program_stderr, &program_stdout);
if (test_case->is_debug_safety) {
int debug_trap_signal = 5;
if (term.how != TerminationIdSignaled || term.code != debug_trap_signal) {
if (term.how == TerminationIdClean) {
printf("\nProgram expected to hit debug trap (signal %d) but exited with return code %d\n",
debug_trap_signal, term.code);
} else if (term.how == TerminationIdSignaled) {
printf("\nProgram expected to hit debug trap (signal %d) but signaled with code %d\n",
debug_trap_signal, term.code);
} else {
printf("\nProgram expected to hit debug trap (signal %d) exited in an unexpected way\n",
debug_trap_signal);
}
print_compiler_invocation(test_case);
print_exe_invocation(test_case);
exit(1);
}
} else {
if (term.how != TerminationIdClean || term.code != 0) {
printf("\nProgram exited with error\n");
print_compiler_invocation(test_case);
print_exe_invocation(test_case);
printf("%s\n", buf_ptr(&program_stderr));
exit(1);
}
if (!buf_eql_str(&program_stdout, test_case->output)) {
printf("\n");
print_compiler_invocation(test_case);
print_exe_invocation(test_case);
printf("==== Test failed. Expected output: ====\n");
printf("%s\n", test_case->output);
printf("========= Actual output: ==============\n");
printf("%s\n", buf_ptr(&program_stdout));
printf("=======================================\n");
exit(1);
}
}
}
for (size_t i = 0; i < test_case->source_files.length; i += 1) {
TestSourceFile *test_source = &test_case->source_files.at(i);
remove(test_source->relative_path);
}
}
static void run_all_tests(const char *grep_text) {
for (size_t i = 0; i < test_cases.length; i += 1) {
TestCase *test_case = test_cases.at(i);
if (grep_text != nullptr && strstr(test_case->case_name, grep_text) == nullptr) {
continue;
}
printf("Test %zu/%zu %s...", i + 1, test_cases.length, test_case->case_name);
fflush(stdout);
run_test(test_case);
printf("OK\n");
}
printf("%zu tests passed.\n", test_cases.length);
}
static void cleanup(void) {
remove(tmp_source_path);
remove(tmp_h_path);
remove(tmp_exe_path);
}
static int usage(const char *arg0) {
fprintf(stderr, "Usage: %s [--grep text]\n", arg0);
return 1;
}
int main(int argc, char **argv) {
const char *grep_text = nullptr;
for (int i = 1; i < argc; i += 1) {
const char *arg = argv[i];
if (i + 1 >= argc) {
return usage(argv[0]);
} else {
i += 1;
if (strcmp(arg, "--grep") == 0) {
grep_text = argv[i];
} else {
return usage(argv[0]);
}
}
}
add_compiling_test_cases();
add_debug_safety_test_cases();
add_compile_failure_test_cases();
add_parseh_test_cases();
add_self_hosted_tests();
add_std_lib_tests();
add_asm_tests();
run_all_tests(grep_text);
cleanup();
}
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