mirror of
https://codeberg.org/ziglang/zig.git
synced 2026-04-27 19:09:47 +03:00
Tom Read Cutting
346ec15c50
* Scan from line start when finding tag in tokenizer This resolves a crash that can occur for invalid bytes like carriage returns that are valid characters when not parsed from within literals. There are potentially other edge cases this could resolve as well, as the calling code for this function didn't account for any potential 'pending_invalid_tokens' that could be queued up by the tokenizer from within another state. * Fix carriage return crash in multiline string Follow the guidance of #38: > However CR directly before NL is interpreted as only a newline and not part of the multiline string. zig fmt will delete the CR. Zig fmt already had code for deleting carriage returns, but would still crash - now it no longer does so. Carriage returns encountered before line-feeds are now appropriately removed on program compilation as well. * Only accept carriage returns before line feeds Previous commit was much less strict about this, this more closely matches the desired spec of only allow CR characters in a CRLF pair, but not otherwise. * Fix CR being rejected when used as whitespace Missed this comment from ziglang/zig-spec#83: > CR used as whitespace, whether directly preceding NL or stray, is still unambiguously whitespace. It is accepted by the grammar and replaced by the canonical whitespace by zig fmt. * Add tests for carriage return handling
548 lines
21 KiB
Zig
548 lines
21 KiB
Zig
const std = @import("std");
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const os = std.os;
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const tests = @import("tests.zig");
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pub fn addCases(cases: *tests.CompareOutputContext) void {
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cases.addC("hello world with libc",
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\\const c = @cImport({
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\\ // See https://github.com/ziglang/zig/issues/515
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\\ @cDefine("_NO_CRT_STDIO_INLINE", "1");
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\\ @cInclude("stdio.h");
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\\});
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\\pub export fn main(argc: c_int, argv: [*][*]u8) c_int {
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\\ _ = argc;
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\\ _ = argv;
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\\ _ = c.puts("Hello, world!");
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\\ return 0;
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\\}
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, "Hello, world!" ++ std.cstr.line_sep);
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cases.add("hello world without libc",
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\\const io = @import("std").io;
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\\
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\\pub fn main() void {
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\\ const stdout = io.getStdOut().writer();
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\\ stdout.print("Hello, world!\n{d:4} {x:3} {c}\n", .{@as(u32, 12), @as(u16, 0x12), @as(u8, 'a')}) catch unreachable;
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\\}
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, "Hello, world!\n 12 12 a\n");
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cases.addC("number literals",
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\\const std = @import("std");
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\\const builtin = @import("builtin");
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\\const is_windows = builtin.os.tag == .windows;
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\\const c = @cImport({
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\\ if (is_windows) {
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\\ // See https://github.com/ziglang/zig/issues/515
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\\ @cDefine("_NO_CRT_STDIO_INLINE", "1");
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\\ @cInclude("io.h");
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\\ @cInclude("fcntl.h");
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\\ }
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\\ @cInclude("stdio.h");
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\\});
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\\
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\\pub export fn main(argc: c_int, argv: [*][*]u8) c_int {
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\\ _ = argc;
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\\ _ = argv;
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\\ if (is_windows) {
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\\ // we want actual \n, not \r\n
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\\ _ = c._setmode(1, c._O_BINARY);
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\\ }
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\\ _ = c.printf("0: %llu\n",
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\\ @as(u64, 0));
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\\ _ = c.printf("320402575052271: %llu\n",
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\\ @as(u64, 320402575052271));
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\\ _ = c.printf("0x01236789abcdef: %llu\n",
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\\ @as(u64, 0x01236789abcdef));
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\\ _ = c.printf("0xffffffffffffffff: %llu\n",
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\\ @as(u64, 0xffffffffffffffff));
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\\ _ = c.printf("0x000000ffffffffffffffff: %llu\n",
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\\ @as(u64, 0x000000ffffffffffffffff));
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\\ _ = c.printf("0o1777777777777777777777: %llu\n",
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\\ @as(u64, 0o1777777777777777777777));
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\\ _ = c.printf("0o0000001777777777777777777777: %llu\n",
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\\ @as(u64, 0o0000001777777777777777777777));
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\\ _ = c.printf("0b1111111111111111111111111111111111111111111111111111111111111111: %llu\n",
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\\ @as(u64, 0b1111111111111111111111111111111111111111111111111111111111111111));
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\\ _ = c.printf("0b0000001111111111111111111111111111111111111111111111111111111111111111: %llu\n",
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\\ @as(u64, 0b0000001111111111111111111111111111111111111111111111111111111111111111));
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\\
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\\ _ = c.printf("\n");
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\\
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\\ _ = c.printf("0.0: %.013a\n",
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\\ @as(f64, 0.0));
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\\ _ = c.printf("0e0: %.013a\n",
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\\ @as(f64, 0e0));
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\\ _ = c.printf("0.0e0: %.013a\n",
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\\ @as(f64, 0.0e0));
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\\ _ = c.printf("000000000000000000000000000000000000000000000000000000000.0e0: %.013a\n",
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\\ @as(f64, 0.0e0));
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\\ _ = c.printf("0.000000000000000000000000000000000000000000000000000000000e0: %.013a\n",
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\\ @as(f64, 0.000000000000000000000000000000000000000000000000000000000e0));
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\\ _ = c.printf("0.0e000000000000000000000000000000000000000000000000000000000: %.013a\n",
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\\ @as(f64, 0.0e000000000000000000000000000000000000000000000000000000000));
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\\ _ = c.printf("1.0: %.013a\n",
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\\ @as(f64, 1.0));
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\\ _ = c.printf("10.0: %.013a\n",
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\\ @as(f64, 10.0));
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\\ _ = c.printf("10.5: %.013a\n",
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\\ @as(f64, 10.5));
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\\ _ = c.printf("10.5e5: %.013a\n",
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\\ @as(f64, 10.5e5));
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\\ _ = c.printf("10.5e+5: %.013a\n",
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\\ @as(f64, 10.5e+5));
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\\ _ = c.printf("50.0e-2: %.013a\n",
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\\ @as(f64, 50.0e-2));
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\\ _ = c.printf("50e-2: %.013a\n",
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\\ @as(f64, 50e-2));
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\\
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\\ _ = c.printf("\n");
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\\
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\\ _ = c.printf("0x1.0: %.013a\n",
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\\ @as(f64, 0x1.0));
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\\ _ = c.printf("0x10.0: %.013a\n",
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\\ @as(f64, 0x10.0));
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\\ _ = c.printf("0x100.0: %.013a\n",
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\\ @as(f64, 0x100.0));
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\\ _ = c.printf("0x103.0: %.013a\n",
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\\ @as(f64, 0x103.0));
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\\ _ = c.printf("0x103.7: %.013a\n",
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\\ @as(f64, 0x103.7));
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\\ _ = c.printf("0x103.70: %.013a\n",
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\\ @as(f64, 0x103.70));
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\\ _ = c.printf("0x103.70p4: %.013a\n",
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\\ @as(f64, 0x103.70p4));
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\\ _ = c.printf("0x103.70p5: %.013a\n",
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\\ @as(f64, 0x103.70p5));
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\\ _ = c.printf("0x103.70p+5: %.013a\n",
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\\ @as(f64, 0x103.70p+5));
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\\ _ = c.printf("0x103.70p-5: %.013a\n",
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\\ @as(f64, 0x103.70p-5));
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\\
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\\ return 0;
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\\}
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,
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\\0: 0
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\\320402575052271: 320402575052271
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\\0x01236789abcdef: 320402575052271
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\\0xffffffffffffffff: 18446744073709551615
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\\0x000000ffffffffffffffff: 18446744073709551615
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\\0o1777777777777777777777: 18446744073709551615
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\\0o0000001777777777777777777777: 18446744073709551615
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\\0b1111111111111111111111111111111111111111111111111111111111111111: 18446744073709551615
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\\0b0000001111111111111111111111111111111111111111111111111111111111111111: 18446744073709551615
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\\
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\\0.0: 0x0.0000000000000p+0
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\\0e0: 0x0.0000000000000p+0
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\\0.0e0: 0x0.0000000000000p+0
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\\000000000000000000000000000000000000000000000000000000000.0e0: 0x0.0000000000000p+0
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\\0.000000000000000000000000000000000000000000000000000000000e0: 0x0.0000000000000p+0
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\\0.0e000000000000000000000000000000000000000000000000000000000: 0x0.0000000000000p+0
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\\1.0: 0x1.0000000000000p+0
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\\10.0: 0x1.4000000000000p+3
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\\10.5: 0x1.5000000000000p+3
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\\10.5e5: 0x1.0059000000000p+20
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\\10.5e+5: 0x1.0059000000000p+20
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\\50.0e-2: 0x1.0000000000000p-1
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\\50e-2: 0x1.0000000000000p-1
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\\
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\\0x1.0: 0x1.0000000000000p+0
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\\0x10.0: 0x1.0000000000000p+4
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\\0x100.0: 0x1.0000000000000p+8
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\\0x103.0: 0x1.0300000000000p+8
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\\0x103.7: 0x1.0370000000000p+8
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\\0x103.70: 0x1.0370000000000p+8
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\\0x103.70p4: 0x1.0370000000000p+12
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\\0x103.70p5: 0x1.0370000000000p+13
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\\0x103.70p+5: 0x1.0370000000000p+13
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\\0x103.70p-5: 0x1.0370000000000p+3
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\\
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);
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cases.add("order-independent declarations",
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\\const io = @import("std").io;
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\\const z = io.stdin_fileno;
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\\const x : @TypeOf(y) = 1234;
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\\const y : u16 = 5678;
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\\pub fn main() void {
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\\ var x_local : i32 = print_ok(x);
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\\ _ = x_local;
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\\}
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\\fn print_ok(val: @TypeOf(x)) @TypeOf(foo) {
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\\ _ = val;
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\\ const stdout = io.getStdOut().writer();
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\\ stdout.print("OK\n", .{}) catch unreachable;
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\\ return 0;
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\\}
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\\const foo : i32 = 0;
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, "OK\n");
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cases.addC("expose function pointer to C land",
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\\const c = @cImport(@cInclude("stdlib.h"));
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\\
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\\export fn compare_fn(a: ?*const anyopaque, b: ?*const anyopaque) c_int {
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\\ const a_int = @ptrCast(*const i32, @alignCast(@alignOf(i32), a));
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\\ const b_int = @ptrCast(*const i32, @alignCast(@alignOf(i32), b));
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\\ if (a_int.* < b_int.*) {
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\\ return -1;
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\\ } else if (a_int.* > b_int.*) {
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\\ return 1;
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\\ } else {
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\\ return 0;
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\\ }
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\\}
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\\
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\\pub export fn main() c_int {
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\\ var array = [_]u32{ 1, 7, 3, 2, 0, 9, 4, 8, 6, 5 };
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\\
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\\ c.qsort(@ptrCast(?*anyopaque, &array), @intCast(c_ulong, array.len), @sizeOf(i32), compare_fn);
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\\
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\\ for (array) |item, i| {
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\\ if (item != i) {
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\\ c.abort();
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\\ }
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\\ }
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\\
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\\ return 0;
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\\}
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, "");
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cases.addC("casting between float and integer types",
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\\const std = @import("std");
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\\const builtin = @import("builtin");
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\\const is_windows = builtin.os.tag == .windows;
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\\const c = @cImport({
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\\ if (is_windows) {
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\\ // See https://github.com/ziglang/zig/issues/515
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\\ @cDefine("_NO_CRT_STDIO_INLINE", "1");
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\\ @cInclude("io.h");
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\\ @cInclude("fcntl.h");
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\\ }
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\\ @cInclude("stdio.h");
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\\});
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\\
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\\pub export fn main(argc: c_int, argv: [*][*]u8) c_int {
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\\ _ = argc;
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\\ _ = argv;
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\\ if (is_windows) {
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\\ // we want actual \n, not \r\n
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\\ _ = c._setmode(1, c._O_BINARY);
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\\ }
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\\ const small: f32 = 3.25;
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\\ const x: f64 = small;
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\\ const y = @floatToInt(i32, x);
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\\ const z = @intToFloat(f64, y);
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\\ _ = c.printf("%.2f\n%d\n%.2f\n%.2f\n", x, y, z, @as(f64, -0.4));
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\\ return 0;
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\\}
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, "3.25\n3\n3.00\n-0.40\n");
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cases.add("same named methods in incomplete struct",
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\\const io = @import("std").io;
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\\
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\\const Foo = struct {
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\\ field1: Bar,
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\\
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\\ fn method(a: *const Foo) bool {
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\\ _ = a;
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\\ return true;
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\\ }
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\\};
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\\
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\\const Bar = struct {
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\\ field2: i32,
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\\
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\\ fn method(b: *const Bar) bool {
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\\ _ = b;
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\\ return true;
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\\ }
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\\};
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\\
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\\pub fn main() void {
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\\ const bar = Bar {.field2 = 13,};
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\\ const foo = Foo {.field1 = bar,};
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\\ const stdout = io.getStdOut().writer();
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\\ if (!foo.method()) {
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\\ stdout.print("BAD\n", .{}) catch unreachable;
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\\ }
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\\ if (!bar.method()) {
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\\ stdout.print("BAD\n", .{}) catch unreachable;
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\\ }
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\\ stdout.print("OK\n", .{}) catch unreachable;
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\\}
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, "OK\n");
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cases.add("defer with only fallthrough",
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\\const io = @import("std").io;
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\\pub fn main() void {
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\\ const stdout = io.getStdOut().writer();
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\\ stdout.print("before\n", .{}) catch unreachable;
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\\ defer stdout.print("defer1\n", .{}) catch unreachable;
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\\ defer stdout.print("defer2\n", .{}) catch unreachable;
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\\ defer stdout.print("defer3\n", .{}) catch unreachable;
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\\ stdout.print("after\n", .{}) catch unreachable;
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\\}
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, "before\nafter\ndefer3\ndefer2\ndefer1\n");
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cases.add("defer with return",
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\\const io = @import("std").io;
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\\const os = @import("std").os;
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\\pub fn main() void {
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\\ const stdout = io.getStdOut().writer();
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\\ stdout.print("before\n", .{}) catch unreachable;
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\\ defer stdout.print("defer1\n", .{}) catch unreachable;
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\\ defer stdout.print("defer2\n", .{}) catch unreachable;
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\\ var gpa = @import("std").heap.GeneralPurposeAllocator(.{}){};
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\\ defer _ = gpa.deinit();
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\\ var arena = @import("std").heap.ArenaAllocator.init(gpa.allocator());
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\\ defer arena.deinit();
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\\ var args_it = @import("std").process.argsWithAllocator(arena.allocator()) catch unreachable;
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\\ if (args_it.skip() and !args_it.skip()) return;
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\\ defer stdout.print("defer3\n", .{}) catch unreachable;
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\\ stdout.print("after\n", .{}) catch unreachable;
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\\}
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, "before\ndefer2\ndefer1\n");
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cases.add("errdefer and it fails",
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\\const io = @import("std").io;
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\\pub fn main() void {
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\\ do_test() catch return;
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\\}
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\\fn do_test() !void {
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\\ const stdout = io.getStdOut().writer();
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\\ stdout.print("before\n", .{}) catch unreachable;
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\\ defer stdout.print("defer1\n", .{}) catch unreachable;
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\\ errdefer stdout.print("deferErr\n", .{}) catch unreachable;
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\\ try its_gonna_fail();
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\\ defer stdout.print("defer3\n", .{}) catch unreachable;
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\\ stdout.print("after\n", .{}) catch unreachable;
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\\}
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\\fn its_gonna_fail() !void {
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\\ return error.IToldYouItWouldFail;
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\\}
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, "before\ndeferErr\ndefer1\n");
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cases.add("errdefer and it passes",
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\\const io = @import("std").io;
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\\pub fn main() void {
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\\ do_test() catch return;
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\\}
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\\fn do_test() !void {
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\\ const stdout = io.getStdOut().writer();
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\\ stdout.print("before\n", .{}) catch unreachable;
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\\ defer stdout.print("defer1\n", .{}) catch unreachable;
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\\ errdefer stdout.print("deferErr\n", .{}) catch unreachable;
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\\ try its_gonna_pass();
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\\ defer stdout.print("defer3\n", .{}) catch unreachable;
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\\ stdout.print("after\n", .{}) catch unreachable;
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\\}
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\\fn its_gonna_pass() anyerror!void { }
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, "before\nafter\ndefer3\ndefer1\n");
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cases.addCase(x: {
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var tc = cases.create("@embedFile",
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\\const foo_txt = @embedFile("foo.txt");
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\\const io = @import("std").io;
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\\
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\\pub fn main() void {
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\\ const stdout = io.getStdOut().writer();
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\\ stdout.print(foo_txt, .{}) catch unreachable;
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\\}
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, "1234\nabcd\n");
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tc.addSourceFile("foo.txt", "1234\nabcd\n");
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break :x tc;
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});
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cases.addCase(x: {
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var tc = cases.create("parsing args",
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\\const std = @import("std");
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\\const io = std.io;
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\\const os = std.os;
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\\
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\\pub fn main() !void {
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\\ var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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\\ defer _ = gpa.deinit();
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\\ var arena = std.heap.ArenaAllocator.init(gpa.allocator());
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\\ defer arena.deinit();
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\\ var args_it = try std.process.argsWithAllocator(arena.allocator());
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\\ const stdout = io.getStdOut().writer();
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\\ var index: usize = 0;
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\\ _ = args_it.skip();
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\\ while (args_it.next()) |arg| : (index += 1) {
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\\ try stdout.print("{}: {s}\n", .{index, arg});
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\\ }
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\\}
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,
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\\0: first arg
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\\1: 'a' 'b' \
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\\2: bare
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\\3: ba""re
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\\4: "
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\\5: last arg
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\\
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);
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tc.setCommandLineArgs(&[_][]const u8{
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"first arg",
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"'a' 'b' \\",
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"bare",
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"ba\"\"re",
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"\"",
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"last arg",
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});
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break :x tc;
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});
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cases.addCase(x: {
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var tc = cases.create("parsing args new API",
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\\const std = @import("std");
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\\const io = std.io;
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\\const os = std.os;
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\\
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\\pub fn main() !void {
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\\ var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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\\ defer _ = gpa.deinit();
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\\ var arena = std.heap.ArenaAllocator.init(gpa.allocator());
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\\ defer arena.deinit();
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\\ var args_it = try std.process.argsWithAllocator(arena.allocator());
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\\ const stdout = io.getStdOut().writer();
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\\ var index: usize = 0;
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\\ _ = args_it.skip();
|
|
\\ while (args_it.next()) |arg| : (index += 1) {
|
|
\\ try stdout.print("{}: {s}\n", .{index, arg});
|
|
\\ }
|
|
\\}
|
|
,
|
|
\\0: first arg
|
|
\\1: 'a' 'b' \
|
|
\\2: bare
|
|
\\3: ba""re
|
|
\\4: "
|
|
\\5: last arg
|
|
\\
|
|
);
|
|
|
|
tc.setCommandLineArgs(&[_][]const u8{
|
|
"first arg",
|
|
"'a' 'b' \\",
|
|
"bare",
|
|
"ba\"\"re",
|
|
"\"",
|
|
"last arg",
|
|
});
|
|
|
|
break :x tc;
|
|
});
|
|
|
|
// It is required to override the log function in order to print to stdout instead of stderr
|
|
cases.add("std.log per scope log level override",
|
|
\\const std = @import("std");
|
|
\\
|
|
\\pub const std_options = struct {
|
|
\\ pub const log_level: std.log.Level = .debug;
|
|
\\
|
|
\\ pub const log_scope_levels = &[_]std.log.ScopeLevel{
|
|
\\ .{ .scope = .a, .level = .warn },
|
|
\\ .{ .scope = .c, .level = .err },
|
|
\\ };
|
|
\\ pub const logFn = log;
|
|
\\};
|
|
\\
|
|
\\const loga = std.log.scoped(.a);
|
|
\\const logb = std.log.scoped(.b);
|
|
\\const logc = std.log.scoped(.c);
|
|
\\
|
|
\\pub fn main() !void {
|
|
\\ loga.debug("", .{});
|
|
\\ logb.debug("", .{});
|
|
\\ logc.debug("", .{});
|
|
\\
|
|
\\ loga.info("", .{});
|
|
\\ logb.info("", .{});
|
|
\\ logc.info("", .{});
|
|
\\
|
|
\\ loga.warn("", .{});
|
|
\\ logb.warn("", .{});
|
|
\\ logc.warn("", .{});
|
|
\\
|
|
\\ loga.err("", .{});
|
|
\\ logb.err("", .{});
|
|
\\ logc.err("", .{});
|
|
\\}
|
|
\\pub fn log(
|
|
\\ comptime level: std.log.Level,
|
|
\\ comptime scope: @TypeOf(.EnumLiteral),
|
|
\\ comptime format: []const u8,
|
|
\\ args: anytype,
|
|
\\) void {
|
|
\\ const level_txt = comptime level.asText();
|
|
\\ const prefix2 = if (scope == .default) ": " else "(" ++ @tagName(scope) ++ "):";
|
|
\\ const stdout = std.io.getStdOut().writer();
|
|
\\ nosuspend stdout.print(level_txt ++ prefix2 ++ format ++ "\n", args) catch return;
|
|
\\}
|
|
,
|
|
\\debug(b):
|
|
\\info(b):
|
|
\\warning(a):
|
|
\\warning(b):
|
|
\\error(a):
|
|
\\error(b):
|
|
\\error(c):
|
|
\\
|
|
);
|
|
|
|
// It is required to override the log function in order to print to stdout instead of stderr
|
|
cases.add("std.heap.LoggingAllocator logs to std.log",
|
|
\\const std = @import("std");
|
|
\\
|
|
\\pub const std_options = struct {
|
|
\\ pub const log_level: std.log.Level = .debug;
|
|
\\ pub const logFn = log;
|
|
\\};
|
|
\\
|
|
\\pub fn main() !void {
|
|
\\ var allocator_buf: [10]u8 = undefined;
|
|
\\ var fba = std.heap.FixedBufferAllocator.init(&allocator_buf);
|
|
\\ var fba_wrapped = std.mem.validationWrap(fba);
|
|
\\ var logging_allocator = std.heap.loggingAllocator(fba_wrapped.allocator());
|
|
\\ const allocator = logging_allocator.allocator();
|
|
\\
|
|
\\ var a = try allocator.alloc(u8, 10);
|
|
\\ try std.testing.expect(allocator.resize(a, 5));
|
|
\\ a = a[0..5];
|
|
\\ try std.testing.expect(a.len == 5);
|
|
\\ try std.testing.expect(!allocator.resize(a, 20));
|
|
\\ allocator.free(a);
|
|
\\}
|
|
\\
|
|
\\pub fn log(
|
|
\\ comptime level: std.log.Level,
|
|
\\ comptime scope: @TypeOf(.EnumLiteral),
|
|
\\ comptime format: []const u8,
|
|
\\ args: anytype,
|
|
\\) void {
|
|
\\ const level_txt = comptime level.asText();
|
|
\\ const prefix2 = if (scope == .default) ": " else "(" ++ @tagName(scope) ++ "): ";
|
|
\\ const stdout = std.io.getStdOut().writer();
|
|
\\ nosuspend stdout.print(level_txt ++ prefix2 ++ format ++ "\n", args) catch return;
|
|
\\}
|
|
,
|
|
\\debug: alloc - success - len: 10, ptr_align: 0
|
|
\\debug: shrink - success - 10 to 5, buf_align: 0
|
|
\\error: expand - failure - 5 to 20, buf_align: 0
|
|
\\debug: free - len: 5
|
|
\\
|
|
);
|
|
|
|
cases.add("valid carriage return example", "const io = @import(\"std\").io;\r\n" ++ // Testing CRLF line endings are valid
|
|
"\r\n" ++
|
|
"pub \r fn main() void {\r\n" ++ // Testing isolated carriage return as whitespace is valid
|
|
" const stdout = io.getStdOut().writer();\r\n" ++
|
|
" stdout.print(\\\\A Multiline\r\n" ++ // testing CRLF at end of multiline string line is valid and normalises to \n in the output
|
|
" \\\\String\r\n" ++
|
|
" , .{}) catch unreachable;\r\n" ++
|
|
"}\r\n", "A Multiline\nString");
|
|
}
|