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zig/test/run_tests.cpp
Andrew Kelley 78d4fb20c4 inline parameters 
This replaces the current generic syntax for functions and replaces
it with the concept of inline parameters.

This paves the way for the "all structs anonymous" proposal.

Closes #151.
2016-07-25 22:55:15 -07:00

1991 lines
58 KiB
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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 <stdio.h>
#include <stdarg.h>
struct TestSourceFile {
const char *relative_path;
const char *source_code;
};
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 *> program_args;
bool is_parseh;
bool is_self_hosted;
bool is_release_mode;
bool is_debug_safety;
};
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");
test_case->compiler_args.append(tmp_source_path);
test_case->compiler_args.append("--export");
test_case->compiler_args.append("exe");
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_case->compiler_args.append("--check-unused");
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, int 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 (int 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");
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("--export");
test_case->compiler_args.append("obj");
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("--check-unused");
test_cases.append(test_case);
va_end(ap);
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 (debug)", 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");
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("--export");
test_case->compiler_args.append("exe");
test_case->compiler_args.append("--output");
test_case->compiler_args.append(tmp_exe_path);
test_cases.append(test_case);
}
{
TestCase *test_case = allocate<TestCase>(1);
test_case->case_name = buf_ptr(buf_sprintf("%s (release)", 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->output = "";
test_case->compiler_args.append("build");
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("--export");
test_case->compiler_args.append("exe");
test_case->compiler_args.append("--output");
test_case->compiler_args.append(tmp_exe_path);
test_case->compiler_args.append("--release");
test_cases.append(test_case);
}
}
static TestCase *add_parseh_case(const char *case_name, const char *source, int 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->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 (int 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 = @c_import(@c_include("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(args: [][]u8) -> %void {
private_function();
%%stdout.printf("OK 2\n");
}
fn private_function() {
print_text();
}
)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 private_function() {
%%stdout.printf("OK 1\n");
}
pub fn print_text() {
private_function();
}
)SOURCE");
}
{
TestCase *tc = add_simple_case("import segregation", R"SOURCE(
use @import("foo.zig");
use @import("bar.zig");
pub fn main(args: [][]u8) -> %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(
#static_eval_enable(false)
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(args: [][]u8) -> %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(args: [][]u8) -> %void {
%%io.stdout.printf("Hello, world!\n");
}
)SOURCE", "Hello, world!\n");
add_simple_case_libc("number literals", R"SOURCE(
const c = @c_import(@c_include("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(args: [][]u8) -> %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("for loops", R"SOURCE(
const io = @import("std").io;
pub fn main(args: [][]u8) -> %void {
const array = []u8 {9, 8, 7, 6};
for (array) |item| {
%%io.stdout.print_u64(item);
%%io.stdout.printf("\n");
}
for (array) |item, index| {
%%io.stdout.print_i64(index);
%%io.stdout.printf("\n");
}
const unknown_size: []u8 = array;
for (unknown_size) |item| {
%%io.stdout.print_u64(item);
%%io.stdout.printf("\n");
}
for (unknown_size) |item, index| {
%%io.stdout.print_i64(index);
%%io.stdout.printf("\n");
}
}
)SOURCE", "9\n8\n7\n6\n0\n1\n2\n3\n9\n8\n7\n6\n0\n1\n2\n3\n");
add_simple_case_libc("expose function pointer to C land", R"SOURCE(
const c = @c_import(@c_include("stdlib.h"));
export fn compare_fn(a: ?&const c_void, b: ?&const c_void) -> c_int {
const a_int = (&i32)(a ?? unreachable{});
const b_int = (&i32)(b ?? unreachable{});
if (*a_int < *b_int) {
-1
} else if (*a_int > *b_int) {
1
} else {
0
}
}
export fn main(args: c_int, argv: &&u8) -> c_int {
var array = []i32 { 1, 7, 3, 2, 0, 9, 4, 8, 6, 5 };
c.qsort((&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 = @c_import(@c_include("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("incomplete struct parameter top level decl", R"SOURCE(
const io = @import("std").io;
struct A {
b: B,
}
struct B {
c: C,
}
struct C {
x: i32,
fn d(c: C) {
%%io.stdout.printf("OK\n");
}
}
fn foo(a: A) {
a.b.c.d();
}
pub fn main(args: [][]u8) -> %void {
const a = A {
.b = B {
.c = C {
.x = 13,
},
},
};
foo(a);
}
)SOURCE", "OK\n");
add_simple_case("same named methods in incomplete struct", R"SOURCE(
const io = @import("std").io;
struct Foo {
field1: Bar,
fn method(a: &Foo) -> bool { true }
}
struct Bar {
field2: i32,
fn method(b: &Bar) -> bool { true }
}
pub fn main(args: [][]u8) -> %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(args: [][]u8) -> %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;
pub fn main(args: [][]u8) -> %void {
%%io.stdout.printf("before\n");
defer %%io.stdout.printf("defer1\n");
defer %%io.stdout.printf("defer2\n");
if (args.len == 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(args: [][]u8) -> %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(args: [][]u8) -> %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("@embed_file", R"SOURCE(
const foo_txt = @embed_file("foo.txt");
const io = @import("std").io;
pub fn main(args: [][]u8) -> %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() {}
)SOURCE", 1, ".tmp_source.zig:3:1: error: redefinition of 'a'");
add_compile_fail_case("bad directive", R"SOURCE(
#bogus1("")
extern fn b();
#bogus2("")
fn a() {}
)SOURCE", 2, ".tmp_source.zig:2:1: error: invalid directive: 'bogus1'",
".tmp_source.zig:4:1: error: invalid directive: 'bogus2'");
add_compile_fail_case("unreachable with return", R"SOURCE(
fn a() -> unreachable {return;}
)SOURCE", 1, ".tmp_source.zig:2:24: error: expected type 'unreachable', got 'void'");
add_compile_fail_case("control reaches end of non-void function", R"SOURCE(
fn a() -> i32 {}
)SOURCE", 1, ".tmp_source.zig:2:15: error: expected type 'i32', got 'void'");
add_compile_fail_case("undefined function call", R"SOURCE(
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(
fn a() {
b(1);
}
fn b(a: i32, b: i32, c: i32) { }
)SOURCE", 1, ".tmp_source.zig:3:6: error: expected 3 arguments, got 1");
add_compile_fail_case("invalid type", R"SOURCE(
fn a() -> bogus {}
)SOURCE", 1, ".tmp_source.zig:2:11: error: use of undeclared identifier 'bogus'");
add_compile_fail_case("pointer to unreachable", R"SOURCE(
fn a() -> &unreachable {}
)SOURCE", 1, ".tmp_source.zig:2:11: error: pointer to unreachable not allowed");
add_compile_fail_case("unreachable code", R"SOURCE(
fn a() {
return;
b();
}
fn b() {}
)SOURCE", 1, ".tmp_source.zig:4:5: error: unreachable code");
add_compile_fail_case("bad import", R"SOURCE(
const bogus = @import("bogus-does-not-exist.zig");
)SOURCE", 1, ".tmp_source.zig:2:15: error: unable to find 'bogus-does-not-exist.zig'");
add_compile_fail_case("undeclared identifier", R"SOURCE(
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) {
}
)SOURCE", 1, ".tmp_source.zig:2:15: error: redeclaration of variable 'a'");
add_compile_fail_case("local variable redeclaration", R"SOURCE(
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;
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: redeclaration of variable 'a'");
add_compile_fail_case("variable has wrong type", R"SOURCE(
fn f() -> i32 {
const a = c"a";
a
}
)SOURCE", 1, ".tmp_source.zig:4:5: error: expected type 'i32', got '&const u8'");
add_compile_fail_case("if condition is bool, not int", R"SOURCE(
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(
fn f() {
const a = return;
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: variable initialization is unreachable");
add_compile_fail_case("unreachable variable", R"SOURCE(
fn f() {
const a : unreachable = return;
}
)SOURCE", 1, ".tmp_source.zig:3:15: error: variable of type 'unreachable' not allowed");
add_compile_fail_case("unreachable parameter", R"SOURCE(
fn f(a : unreachable) {}
)SOURCE", 1, ".tmp_source.zig:2:10: error: parameter of type 'unreachable' not allowed");
add_compile_fail_case("bad assignment target", R"SOURCE(
fn f() {
3 = 3;
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: invalid assignment target");
add_compile_fail_case("assign to constant variable", R"SOURCE(
fn f() {
const a = 3;
a = 4;
}
)SOURCE", 1, ".tmp_source.zig:4:5: error: cannot assign to constant");
add_compile_fail_case("use of undeclared identifier", R"SOURCE(
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(
fn f() {
(const a = 0);
}
)SOURCE", 1, ".tmp_source.zig:3:6: error: invalid token: 'const'");
add_compile_fail_case("array access errors", R"SOURCE(
fn f() {
var bad : bool = undefined;
i[i] = i[i];
bad[bad] = bad[bad];
}
)SOURCE", 4, ".tmp_source.zig:4:5: error: use of undeclared identifier 'i'",
".tmp_source.zig:4:7: error: use of undeclared identifier 'i'",
".tmp_source.zig:5:8: error: array access of non-array",
".tmp_source.zig:5:9: error: expected type 'isize', got 'bool'");
add_compile_fail_case("variadic functions only allowed in extern", R"SOURCE(
fn f(...) {}
)SOURCE", 1, ".tmp_source.zig:2:1: error: variadic arguments only allowed in extern function declarations");
add_compile_fail_case("write to const global variable", R"SOURCE(
const x : i32 = 99;
fn f() {
x = 1;
}
)SOURCE", 1, ".tmp_source.zig:4:5: 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) };
}
)SOURCE", 2, ".tmp_source.zig:3:21: error: expected type 'i32', got 'void'",
".tmp_source.zig:4:15: error: incompatible types: 'i32' and 'void'");
add_compile_fail_case("direct struct loop", R"SOURCE(
struct A { a : A, }
)SOURCE", 1, ".tmp_source.zig:2:1: error: 'A' depends on itself");
add_compile_fail_case("indirect struct loop", R"SOURCE(
struct A { b : B, }
struct B { c : C, }
struct C { a : A, }
)SOURCE", 1, ".tmp_source.zig:2:1: error: 'A' depends on itself");
add_compile_fail_case("invalid struct field", R"SOURCE(
struct A { x : i32, }
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(
struct A { x : i32, }
struct A { y : i32, }
)SOURCE", 1, ".tmp_source.zig:3:1: error: redefinition of 'A'");
add_compile_fail_case("redefinition of enums", R"SOURCE(
enum A {}
enum A {}
)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", 1, ".tmp_source.zig:3:1: error: redeclaration of variable 'a'");
add_compile_fail_case("byvalue struct on exported functions", R"SOURCE(
struct A { x : i32, }
export fn f(a : A) {}
)SOURCE", 1, ".tmp_source.zig:3:13: error: byvalue struct parameters not yet supported on extern functions");
add_compile_fail_case("duplicate field in struct value expression", R"SOURCE(
struct A {
x : i32,
y : i32,
z : i32,
}
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(
struct A {
x : i32,
y : i32,
z : i32,
}
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(
struct A {
x : i32,
y : i32,
z : i32,
}
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(
fn f() {
break;
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: 'break' expression outside loop");
add_compile_fail_case("invalid continue expression", R"SOURCE(
fn f() {
continue;
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: 'continue' expression outside loop");
add_compile_fail_case("invalid maybe type", R"SOURCE(
fn f() {
if (const x ?= true) { }
}
)SOURCE", 1, ".tmp_source.zig:3:20: error: expected maybe type");
add_compile_fail_case("cast unreachable", R"SOURCE(
fn f() -> i32 {
i32(return 1)
}
)SOURCE", 1, ".tmp_source.zig:3:8: error: invalid cast from type 'unreachable' to 'i32'");
add_compile_fail_case("invalid builtin fn", R"SOURCE(
fn f() -> @bogus(foo) {
}
)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;
)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) {}
)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,};
)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;
)SOURCE", 1, ".tmp_source.zig:2:1: error: variable of type 'type' must be constant");
add_compile_fail_case("variables shadowing types", R"SOURCE(
struct Foo {}
struct Bar {}
fn f(Foo: i32) {
var Bar : i32 = undefined;
}
)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,
};
}
)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();
)SOURCE", 1, ".tmp_source.zig:3:11: error: global variable initializer requires constant expression");
add_compile_fail_case("array concatenation with wrong type", R"SOURCE(
fn f(s: []u8) -> []u8 {
s ++ "foo"
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: expected array or C string literal, got '[]u8'");
add_compile_fail_case("non compile time array concatenation", R"SOURCE(
fn f(s: [10]u8) -> []u8 {
s ++ "foo"
}
)SOURCE", 1, ".tmp_source.zig:3:5: error: array concatenation requires constant expression");
add_compile_fail_case("c_import with bogus include", R"SOURCE(
const c = @c_import(@c_include("bogus.h"));
)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;
)SOURCE", 1, ".tmp_source.zig:3:12: error: unable to get address of type '(integer literal)'");
add_compile_fail_case("@typeof number literal", R"SOURCE(
const x = 3;
struct Foo {
index: @typeof(x),
}
)SOURCE", 1, ".tmp_source.zig:4:20: error: type '(integer literal)' not eligible for @typeof");
add_compile_fail_case("integer overflow error", R"SOURCE(
const x : u8 = 300;
)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;
)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(
struct Foo {
a: i32,
b: i32,
fn member_a(foo: Foo) -> i32 {
return foo.a;
}
fn member_b(foo: 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: Foo, index: i32) {
const result = members[index]();
}
)SOURCE", 1, ".tmp_source.zig:21:34: error: expected 1 arguments, got 0");
add_compile_fail_case("missing function name and param name", R"SOURCE(
fn () {}
fn f(i32) {}
)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}
)SOURCE", 3,
".tmp_source.zig:2:21: error: expected type 'fn()', got 'fn() -> i32'",
".tmp_source.zig:2:24: error: expected type 'fn()', got 'fn() -> i32'",
".tmp_source.zig:2:27: error: expected type 'fn()', got '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}
)SOURCE", 1, ".tmp_source.zig:2:37: error: expected type 'fn(i32) -> i32', got '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;
)SOURCE", 1, ".tmp_source.zig:3:17: error: expected type 'f32', got 'f64'");
add_compile_fail_case("colliding invalid top level functions", R"SOURCE(
fn func() -> bogus {}
fn func() -> bogus {}
)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 = @compile_var("bogus");
)SOURCE", 1, ".tmp_source.zig:2:24: error: unrecognized compile variable: 'bogus'");
add_compile_fail_case("@const_eval", R"SOURCE(
fn a(x: i32) {
const y = @const_eval(x);
}
)SOURCE", 1, ".tmp_source.zig:3:27: error: unable to evaluate constant expression");
add_compile_fail_case("non constant expression in array size outside function", R"SOURCE(
struct Foo {
y: [get()]u8,
}
var global_var: isize = 1;
fn get() -> isize { global_var }
)SOURCE", 1, ".tmp_source.zig:3:9: error: unable to evaluate constant expression");
add_compile_fail_case("unnecessary if statement", R"SOURCE(
fn f() {
if (true) { }
}
)SOURCE", 1, ".tmp_source.zig:3:9: error: condition is always true; unnecessary if statement");
add_compile_fail_case("addition with non numbers", R"SOURCE(
struct Foo {
field: i32,
}
const x = Foo {.field = 1} + Foo {.field = 2};
)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);
)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(
enum Number {
One,
Two,
Three,
Four,
}
fn f(n: Number) -> i32 {
switch (n) {
One => 1,
Two => 2,
Three => 3,
}
}
)SOURCE", 1, ".tmp_source.zig:9:5: error: enumeration value 'Four' not handled in switch");
add_compile_fail_case("import inside function body", R"SOURCE(
fn f() {
const std = @import("std");
}
)SOURCE", 1, ".tmp_source.zig:3:17: error: @import invalid inside function bodies");
add_compile_fail_case("normal string with newline", R"SOURCE(
const foo = "a
b";
)SOURCE", 1, ".tmp_source.zig:2:13: error: use raw string for multiline string literal");
add_compile_fail_case("invalid comparison for function pointers", R"SOURCE(
fn foo() {}
const invalid = foo > foo;
)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(inline x: i32, y: i32) -> i32 { return x + y; }
fn test1(a: i32, b: i32) -> i32 {
return foo(a, b);
}
)SOURCE", 1, ".tmp_source.zig:4:16: error: unable to evaluate constant expression for inline parameter");
add_compile_fail_case("goto jumping into block", R"SOURCE(
fn f() {
{
a_label:
}
goto a_label;
}
)SOURCE", 2,
".tmp_source.zig:4:1: error: label 'a_label' defined but not used",
".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(){}
)SOURCE", 2,
".tmp_source.zig:3:12: error: no label in scope named 'label'",
".tmp_source.zig:5:1: error: label 'label' defined but not used");
add_compile_fail_case("assign null to non-nullable pointer", R"SOURCE(
const a: &u8 = null;
)SOURCE", 1, ".tmp_source.zig:2:16: error: expected maybe type, got '&u8'");
add_compile_fail_case("indexing an array of size zero", R"SOURCE(
const array = []u8{};
fn foo() {
const pointer = &array[0];
}
)SOURCE", 1, ".tmp_source.zig:4:27: error: out of bounds array access");
add_compile_fail_case("compile time division by zero", R"SOURCE(
const x = foo(0);
fn foo(x: i32) -> i32 {
1 / x
}
)SOURCE", 3,
".tmp_source.zig:3:1: error: function evaluation caused division by zero",
".tmp_source.zig:2:14: note: called from here",
".tmp_source.zig:4:7: note: division by zero here");
add_compile_fail_case("branch on undefined value", R"SOURCE(
const x = if (undefined) true else false;
)SOURCE", 1, ".tmp_source.zig:2:15: error: branch on 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);
}
)SOURCE", 3,
".tmp_source.zig:3:1: error: function evaluation exceeded 1000 branches",
".tmp_source.zig:2:37: note: called from here",
".tmp_source.zig:4:40: note: quota exceeded here");
add_compile_fail_case("@embed_file with bogus file", R"SOURCE(
const resource = @embed_file("bogus.txt");
)SOURCE", 1, ".tmp_source.zig:2:18: error: unable to find './bogus.txt'");
add_compile_fail_case("non-const expression in struct literal outside function", R"SOURCE(
struct Foo {
x: i32,
}
const a = Foo {.x = get_it()};
extern fn get_it() -> i32;
)SOURCE", 1, ".tmp_source.zig:5:27: error: unable to evaluate constant expression");
add_compile_fail_case("non-const expression function call with struct return value outside function", R"SOURCE(
struct Foo {
x: i32,
}
const a = get_it();
#static_eval_enable(false)
fn get_it() -> Foo { Foo {.x = 13} }
)SOURCE", 1, ".tmp_source.zig:5:17: error: unable to evaluate constant expression");
add_compile_fail_case("undeclared identifier error should mark fn as impure", R"SOURCE(
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
}
enum EnumWithData {
One,
Two: i32,
}
fn bad_eql_2(a: EnumWithData, b: EnumWithData) -> bool {
a == b
}
)SOURCE", 2,
".tmp_source.zig:3:7: error: operator not allowed for type '[]u8'",
".tmp_source.zig:10:7: error: operator not allowed for type 'EnumWithData'");
add_compile_fail_case("non-const switch number literal", R"SOURCE(
fn foo() {
const x = switch (bar()) {
1, 2 => 1,
3, 4 => 2,
else => 3,
};
}
#static_eval_enable(false)
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", R"SOURCE(
fn f() {
var x: i32 = 1234;
while (!@cmpxchg(&x, 1234, 5678, AtomicOrder.Monotonic, AtomicOrder.SeqCst)) {}
while (!@cmpxchg(&x, 1234, 5678, AtomicOrder.Unordered, AtomicOrder.Unordered)) {}
}
)SOURCE", 2,
".tmp_source.zig:4:72: error: failure atomic ordering must be no stricter than success",
".tmp_source.zig:5:49: error: success atomic ordering must be Monotonic or stricter");
add_compile_fail_case("negation overflow in function evaluation", R"SOURCE(
fn f() {
const x = neg(-128);
}
fn neg(x: i8) -> i8 {
-x
}
)SOURCE", 3,
".tmp_source.zig:5:1: error: function evaluation caused overflow",
".tmp_source.zig:3:18: note: called from here",
".tmp_source.zig:6:5: note: overflow occurred here");
add_compile_fail_case("add overflow in function evaluation", R"SOURCE(
fn f() {
const x = add(65530, 10);
}
fn add(a: u16, b: u16) -> u16 {
a + b
}
)SOURCE", 3,
".tmp_source.zig:5:1: error: function evaluation caused overflow",
".tmp_source.zig:3:18: note: called from here",
".tmp_source.zig:6:7: note: overflow occurred here");
add_compile_fail_case("sub overflow in function evaluation", R"SOURCE(
fn f() {
const x = sub(10, 20);
}
fn sub(a: u16, b: u16) -> u16 {
a - b
}
)SOURCE", 3,
".tmp_source.zig:5:1: error: function evaluation caused overflow",
".tmp_source.zig:3:18: note: called from here",
".tmp_source.zig:6:7: note: overflow occurred here");
add_compile_fail_case("mul overflow in function evaluation", R"SOURCE(
fn f() {
const x = mul(300, 6000);
}
fn mul(a: u16, b: u16) -> u16 {
a * b
}
)SOURCE", 3,
".tmp_source.zig:5:1: error: function evaluation caused overflow",
".tmp_source.zig:3:18: note: called from here",
".tmp_source.zig:6:7: note: overflow occurred here");
add_compile_fail_case("add incompatible int types", R"SOURCE(
fn add(x: i8w, y: i32) {
const z = x + y;
}
)SOURCE", 1, ".tmp_source.zig:3:17: error: incompatible types: 'i8w' and 'i32'");
add_compile_fail_case("truncate sign mismatch", R"SOURCE(
fn f() {
const x: u32 = 10;
@truncate(i8, x);
}
)SOURCE", 1, ".tmp_source.zig:4:19: error: expected signed integer type, got 'u32'");
add_compile_fail_case("truncate same bit count", R"SOURCE(
fn f() {
const x: i8 = 10;
@truncate(i8, x);
}
)SOURCE", 1, ".tmp_source.zig:4:19: error: type 'i8' has same or fewer bits than destination type 'i8'");
add_compile_fail_case("truncate same bit count", R"SOURCE(
fn f() {
%return something();
}
fn something() -> %void { }
)SOURCE", 2,
".tmp_source.zig:3:5: error: %return statement in function with return type 'void'",
".tmp_source.zig:2:8: note: function return type here");
add_compile_fail_case("wrong return type for main", R"SOURCE(
pub fn main(args: [][]u8) { }
)SOURCE", 1, ".tmp_source.zig:2:27: 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() -> isize;
var bytes: [ext()]u8 = undefined;
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 inline parameter", R"SOURCE(
export fn foo(inline x: i32, y: i32) -> i32{
x + y
}
)SOURCE", 1, ".tmp_source.zig:2:15: error: inline parameter not allowed in extern function");
add_compile_fail_case("extern function with inline parameter", R"SOURCE(
extern fn foo(inline x: i32, y: i32) -> i32;
fn f() -> i32 {
foo(1, 2)
}
)SOURCE", 1, ".tmp_source.zig:2:15: error: inline parameter not allowed in extern function");
/* TODO
add_compile_fail_case("inline export function", R"SOURCE(
export inline fn foo(x: i32, y: i32) -> i32{
x + y
}
)SOURCE", 1, ".tmp_source.zig:2:1: error: extern functions cannot be inline");
*/
}
//////////////////////////////////////////////////////////////////////////////
static void add_debug_safety_test_cases(void) {
add_debug_safety_case("out of bounds slice access", R"SOURCE(
pub fn main(args: [][]u8) -> %void {
const a = []i32{1, 2, 3, 4};
baz(bar(a));
}
#static_eval_enable(false)
fn bar(a: []i32) -> i32 {
a[4]
}
#static_eval_enable(false)
fn baz(a: i32) {}
)SOURCE");
add_debug_safety_case("integer addition overflow", R"SOURCE(
error Whatever;
pub fn main(args: [][]u8) -> %void {
const x = add(65530, 10);
if (x == 0) return error.Whatever;
}
#static_eval_enable(false)
fn add(a: u16, b: u16) -> u16 {
a + b
}
)SOURCE");
add_debug_safety_case("integer subtraction overflow", R"SOURCE(
error Whatever;
pub fn main(args: [][]u8) -> %void {
const x = sub(10, 20);
if (x == 0) return error.Whatever;
}
#static_eval_enable(false)
fn sub(a: u16, b: u16) -> u16 {
a - b
}
)SOURCE");
add_debug_safety_case("integer multiplication overflow", R"SOURCE(
error Whatever;
pub fn main(args: [][]u8) -> %void {
const x = mul(300, 6000);
if (x == 0) return error.Whatever;
}
#static_eval_enable(false)
fn mul(a: u16, b: u16) -> u16 {
a * b
}
)SOURCE");
add_debug_safety_case("integer negation overflow", R"SOURCE(
error Whatever;
pub fn main(args: [][]u8) -> %void {
const x = neg(-32768);
if (x == 0) return error.Whatever;
}
#static_eval_enable(false)
fn neg(a: i16) -> i16 {
-a
}
)SOURCE");
add_debug_safety_case("signed shift left overflow", R"SOURCE(
error Whatever;
pub fn main(args: [][]u8) -> %void {
const x = shl(-16385, 1);
if (x == 0) return error.Whatever;
}
#static_eval_enable(false)
fn shl(a: i16, b: i16) -> i16 {
a << b
}
)SOURCE");
add_debug_safety_case("unsigned shift left overflow", R"SOURCE(
error Whatever;
pub fn main(args: [][]u8) -> %void {
const x = shl(0b0010111111111111, 3);
if (x == 0) return error.Whatever;
}
#static_eval_enable(false)
fn shl(a: u16, b: u16) -> u16 {
a << b
}
)SOURCE");
add_debug_safety_case("integer division by zero", R"SOURCE(
error Whatever;
pub fn main(args: [][]u8) -> %void {
const x = div0(999, 0);
}
#static_eval_enable(false)
fn div0(a: i32, b: i32) -> i32 {
a / b
}
)SOURCE");
add_debug_safety_case("exact division failure", R"SOURCE(
error Whatever;
pub fn main(args: [][]u8) -> %void {
const x = div_exact(10, 3);
if (x == 0) return error.Whatever;
}
#static_eval_enable(false)
fn div_exact(a: i32, b: i32) -> i32 {
@div_exact(a, b)
}
)SOURCE");
add_debug_safety_case("cast []u8 to bigger slice of wrong size", R"SOURCE(
error Whatever;
pub fn main(args: [][]u8) -> %void {
const x = widen_slice([]u8{1, 2, 3, 4, 5});
if (x.len == 0) return error.Whatever;
}
#static_eval_enable(false)
fn widen_slice(slice: []u8) -> []i32 {
([]i32)(slice)
}
)SOURCE");
add_debug_safety_case("value does not fit in shortening cast", R"SOURCE(
error Whatever;
pub fn main(args: [][]u8) -> %void {
const x = shorten_cast(200);
if (x == 0) return error.Whatever;
}
#static_eval_enable(false)
fn shorten_cast(x: i32) -> i8 {
i8(x)
}
)SOURCE");
add_debug_safety_case("signed integer not fitting in cast to unsigned integer", R"SOURCE(
error Whatever;
pub fn main(args: [][]u8) -> %void {
const x = unsigned_cast(-10);
if (x == 0) return error.Whatever;
}
#static_eval_enable(false)
fn unsigned_cast(x: i32) -> u32 {
u32(x)
}
)SOURCE");
}
//////////////////////////////////////////////////////////////////////////////
static void add_parseh_test_cases(void) {
add_parseh_case("simple data types", 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", R"SOURCE(
void foo(void) __attribute__((noreturn));
)SOURCE", 1, R"OUTPUT(pub extern fn foo() -> unreachable;)OUTPUT");
add_parseh_case("enums", R"SOURCE(
enum Foo {
FooA,
FooB,
Foo1,
};
)SOURCE", 3, R"(export enum enum_Foo {
A,
B,
@"1",
})", R"(pub const FooA = enum_Foo.A;
pub const FooB = enum_Foo.B;
pub const Foo1 = enum_Foo.@"1";)",
R"(pub const Foo = enum_Foo;)");
add_parseh_case("restrict -> noalias", 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", R"SOURCE(
struct Foo {
int x;
char *y;
};
)SOURCE", 2,
R"OUTPUT(export struct struct_Foo {
x: c_int,
y: ?&u8,
})OUTPUT", R"OUTPUT(pub const Foo = struct_Foo;)OUTPUT");
add_parseh_case("qualified struct and enum", R"SOURCE(
struct Foo {
int x;
int y;
};
enum Bar {
BarA,
BarB,
};
void func(struct Foo *a, enum Bar **b);
)SOURCE", 5, R"OUTPUT(export struct struct_Foo {
x: c_int,
y: c_int,
})OUTPUT", R"OUTPUT(
export enum enum_Bar {
A,
B,
})OUTPUT", R"OUTPUT(pub const BarA = enum_Bar.A;
pub const BarB = enum_Bar.B;)OUTPUT",
"pub extern fn func(a: ?&struct_Foo, b: ?&?&enum_Bar);",
R"OUTPUT(pub const Foo = struct_Foo;
pub const Bar = enum_Bar;)OUTPUT");
add_parseh_case("constant size array", 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", R"SOURCE(
struct Foo {
void (*derp)(struct Foo *foo);
};
)SOURCE", 2, R"OUTPUT(export struct struct_Foo {
derp: ?extern fn(?&struct_Foo),
})OUTPUT", R"OUTPUT(pub const Foo = struct_Foo;)OUTPUT");
add_parseh_case("struct prototype used in func", R"SOURCE(
struct Foo;
struct Foo *some_func(struct Foo *foo, int x);
)SOURCE", 2, R"OUTPUT(pub type struct_Foo = u8;
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", R"SOURCE(
#define A_CHAR 'a'
)SOURCE", 1, R"OUTPUT(pub const A_CHAR = 'a';)OUTPUT");
add_parseh_case("#define an unsigned integer literal", R"SOURCE(
#define CHANNEL_COUNT 24
)SOURCE", 1, R"OUTPUT(pub const CHANNEL_COUNT = 24;)OUTPUT");
add_parseh_case("#define referencing another #define", R"SOURCE(
#define THING2 THING1
#define THING1 1234
)SOURCE", 2,
"pub const THING1 = 1234;",
"pub const THING2 = THING1;");
add_parseh_case("variables", 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", R"SOURCE(
struct Bar;
struct Foo {
struct Bar *next;
};
struct Bar {
struct Foo *next;
};
)SOURCE", 2,
R"SOURCE(export struct struct_Bar {
next: ?&struct_Foo,
})SOURCE",
R"SOURCE(export struct struct_Foo {
next: ?&struct_Bar,
})SOURCE");
add_parseh_case("typedef void", 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", R"SOURCE(
extern void (*fn_ptr)(void);
#define foo fn_ptr
)SOURCE", 2,
"pub extern var fn_ptr: ?extern fn();",
R"SOURCE(pub inline fn foo() {
(??fn_ptr)();
})SOURCE");
add_parseh_case("#define string", R"SOURCE(
#define foo "a string"
)SOURCE", 1, "pub const foo = c\"a string\";");
add_parseh_case("__cdecl doesn't mess up function pointers", 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", 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", R"SOURCE(
struct type {
int defer;
};
)SOURCE", 2, R"(export struct struct_type {
@"defer": c_int,
})", R"(pub const @"type" = struct_type;)");
add_parseh_case("macro defines string literal with octal", R"SOURCE(
#define FOO "aoeu\023 derp"
#define FOO2 "aoeu\0234 derp"
#define FOO_CHAR '\077'
)SOURCE", 3,
R"(pub const FOO = c"aoeu\x13 derp")",
R"(pub const FOO2 = c"aoeu\x134 derp")",
R"(pub const FOO_CHAR = '\x3f')");
}
static void run_self_hosted_test(bool is_release_mode) {
Buf zig_stderr = BUF_INIT;
Buf zig_stdout = BUF_INIT;
ZigList<const char *> args = {0};
args.append("test");
args.append("../test/self_hosted.zig");
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 (int 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->is_self_hosted = true;
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->is_self_hosted = true;
test_case->is_release_mode = true;
test_cases.append(test_case);
}
}
static void print_compiler_invocation(TestCase *test_case) {
printf("%s", zig_exe);
for (int i = 0; i < test_case->compiler_args.length; i += 1) {
printf(" %s", test_case->compiler_args.at(i));
}
printf("\n");
}
static void print_exe_invocation(TestCase *test_case) {
printf("%s", tmp_exe_path);
for (int 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->is_self_hosted) {
return run_self_hosted_test(test_case->is_release_mode);
}
for (int 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 (int 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");
print_compiler_invocation(test_case);
printf("%s\n", buf_ptr(&zig_stderr));
exit(1);
}
for (int 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 {
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 (int 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(bool reverse) {
if (reverse) {
for (int i = test_cases.length - 1; i >= 0; i -= 1) {
TestCase *test_case = test_cases.at(i);
printf("Test %d/%d %s...", i + 1, test_cases.length, test_case->case_name);
run_test(test_case);
printf("OK\n");
}
} else {
for (int i = 0; i < test_cases.length; i += 1) {
TestCase *test_case = test_cases.at(i);
printf("Test %d/%d %s...", i + 1, test_cases.length, test_case->case_name);
run_test(test_case);
printf("OK\n");
}
}
printf("%d 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 [--reverse]\n", arg0);
return 1;
}
int main(int argc, char **argv) {
bool reverse = false;
for (int i = 1; i < argc; i += 1) {
if (strcmp(argv[i], "--reverse") == 0) {
reverse = true;
} 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();
run_all_tests(reverse);
cleanup();
}
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