Hojun-Cho
5466ea048d
concat(a, b: str) -> concat(strs: str...) per ref/hare/strings/concat.ha:5.
Drop nomem return per project no-alloc-error idiom (os.alloc aborts).
Unblocked by #16 variadic-pack store fix (3bd9b1d).
concat_cases rewritten to table-driven: flat pool + argo/argn parallel
arrays + slice-spread call. 9 rows cover Hare concat.ha:18 vectors
(0/1/2/3-arg, multibyte) plus empty-mid/first/last/2-empty edges.
Bisect via signalled = 200 + i.
trim/contains variadic held on task #36 — surfaced by worker-variadic
pre-flight: iter + match prev composition in non-leaf callees still
hits scanlocals offset divergence. Resolves via #15 size-strategy.
make test 121/121; ww2==ww3==ww4 byte-id holds.
631 lines
21 KiB
Plaintext
631 lines
21 KiB
Plaintext
// stringstest — exercises lib/strings. Run with
|
||
// `out/bin/ww run lib/strings/stringstest.ww`.
|
||
// Same signalled-then-fail()-with-+10 shape as bytes / utf8 / hex /
|
||
// time tests: non-zero exit pinpoints the failing scenario.
|
||
//
|
||
// Vectors mirror ref/hare/strings/{dup,concat,trim,contains,index,
|
||
// suffix,compare}.ha where ww can express them.
|
||
|
||
package strings;
|
||
|
||
import strings;
|
||
import encoding.utf8;
|
||
import os;
|
||
|
||
let signalled: i32 = 0;
|
||
fn fail() void = { os.exit(signalled + 10); };
|
||
|
||
fn streq(a: str, b: str) bool = {
|
||
if (a.len != b.len) { return false; };
|
||
let i: i32 = 0;
|
||
for (i < a.len) {
|
||
if (a[i] != b[i]) { return false; };
|
||
i += 1;
|
||
};
|
||
return true;
|
||
};
|
||
|
||
// ---- dup --------------------------------------------------------------
|
||
// ref/hare/strings/dup.ha:45.
|
||
|
||
@test fn dup_cases() void = {
|
||
let e: str = strings.dup("");
|
||
if (!streq(e, "")) { fail(); };
|
||
if (e.len != 0) { fail(); };
|
||
|
||
let h: str = strings.dup("hello");
|
||
if (!streq(h, "hello")) { fail(); };
|
||
defer os.free(h.ptr: *void, h.len: u64);
|
||
|
||
// multi-byte UTF-8: dup must copy raw bytes, not aliased view.
|
||
let m: str = strings.dup("こんにちは");
|
||
if (m.len != 15) { fail(); };
|
||
if (!streq(m, "こんにちは")) { fail(); };
|
||
if (m.ptr == "こんにちは".ptr) { fail(); }; // fresh alloc
|
||
defer os.free(m.ptr: *void, m.len: u64);
|
||
};
|
||
|
||
// ---- concat -----------------------------------------------------------
|
||
// ref/hare/strings/concat.ha:18. Rows mirror Hare's vectors (0/1/2/3-arg,
|
||
// empty-mid, 2-empty) plus empty-first / empty-last / multibyte. The
|
||
// per-row `signalled` bump narrows a failure exit code to the offending
|
||
// row.
|
||
|
||
@test fn concat_cases() void = {
|
||
let pool: [17]str;
|
||
pool[0] = "hello";
|
||
pool[1] = "hello ";
|
||
pool[2] = "world";
|
||
pool[3] = "hello";
|
||
pool[4] = " ";
|
||
pool[5] = "world";
|
||
pool[6] = "hello";
|
||
pool[7] = "";
|
||
pool[8] = "world";
|
||
pool[9] = "";
|
||
pool[10] = "";
|
||
pool[11] = "";
|
||
pool[12] = "world";
|
||
pool[13] = "hello";
|
||
pool[14] = "";
|
||
pool[15] = "こん";
|
||
pool[16] = "にちは";
|
||
|
||
let argo: [9]i32;
|
||
let argn: [9]i32;
|
||
let want: [9]str;
|
||
let labels: [9]str;
|
||
argo[0]=0; argn[0]=0; want[0]=""; labels[0]="0-arg";
|
||
argo[1]=0; argn[1]=1; want[1]="hello"; labels[1]="1-arg";
|
||
argo[2]=1; argn[2]=2; want[2]="hello world"; labels[2]="2-arg";
|
||
argo[3]=3; argn[3]=3; want[3]="hello world"; labels[3]="3-arg";
|
||
argo[4]=6; argn[4]=3; want[4]="helloworld"; labels[4]="empty-mid";
|
||
argo[5]=9; argn[5]=2; want[5]=""; labels[5]="2-empty";
|
||
argo[6]=11; argn[6]=2; want[6]="world"; labels[6]="empty-first";
|
||
argo[7]=13; argn[7]=2; want[7]="hello"; labels[7]="empty-last";
|
||
argo[8]=15; argn[8]=2; want[8]="こんにちは"; labels[8]="multibyte";
|
||
|
||
let i: i32 = 0;
|
||
for (i < 9) {
|
||
signalled = 200 + i;
|
||
let argv: []str;
|
||
argv.ptr = &pool[argo[i]];
|
||
argv.len = argn[i];
|
||
argv.cap = argn[i];
|
||
let got: str = strings.concat(argv...);
|
||
if (!streq(got, want[i])) { fail(); };
|
||
if (got.len > 0) { os.free(got.ptr: *void, got.len: u64); };
|
||
i += 1;
|
||
};
|
||
};
|
||
|
||
// ---- hasprefix --------------------------------------------------------
|
||
// ref/hare/strings/suffix.ha:18.
|
||
|
||
@test fn hasprefix_cases() void = {
|
||
if (!strings.hasprefix("hello world", "hello")) { fail(); };
|
||
if (!strings.hasprefix("hello world", 'h')) { fail(); };
|
||
if ( strings.hasprefix("hello world", "world")) { fail(); };
|
||
if ( strings.hasprefix("hello world", 'q')) { fail(); };
|
||
if (!strings.hasprefix("hello", "hello")) { fail(); }; // equal-len
|
||
if (!strings.hasprefix("anything", "")) { fail(); }; // empty prefix
|
||
if ( strings.hasprefix("", "x")) { fail(); };
|
||
// multibyte rune prefix — '\'é\'' literal blocked by single-byte
|
||
// lexrune (lib/ww/lex/lex.ww:659); pass codepoint directly.
|
||
if (!strings.hasprefix("éclat", 0xE9u32: rune)) { fail(); };
|
||
if (!strings.hasprefix("🦀rust", 0x1F980u32: rune)) { fail(); };
|
||
};
|
||
|
||
// ---- hassuffix --------------------------------------------------------
|
||
// ref/hare/strings/suffix.ha:36.
|
||
|
||
@test fn hassuffix_cases() void = {
|
||
if (!strings.hassuffix("hello world", "world")) { fail(); };
|
||
if (!strings.hassuffix("hello world", 'd')) { fail(); };
|
||
if ( strings.hassuffix("hello world", "hello")) { fail(); };
|
||
if ( strings.hassuffix("hello world", 'h')) { fail(); };
|
||
if (!strings.hassuffix("café", 0xE9u32: rune)) { fail(); }; // multibyte
|
||
};
|
||
|
||
// ---- contains ---------------------------------------------------------
|
||
// ref/hare/strings/contains.ha:27.
|
||
|
||
@test fn contains_cases() void = {
|
||
if (!strings.contains("hello world", "hello")) { fail(); };
|
||
if (!strings.contains("hello world", 'h')) { fail(); };
|
||
if ( strings.contains("hello world", 'x')) { fail(); };
|
||
if (!strings.contains("hello world", "world")) { fail(); };
|
||
if (!strings.contains("hello world", "")) { fail(); }; // empty hits at 0
|
||
if ( strings.contains("hello world", "foobar")) { fail(); };
|
||
if (!strings.contains("こんにちは", 0x306Bu32: rune)) { fail(); }; // 'に'
|
||
if (!strings.contains("こんにちは", "ちは")) { fail(); };
|
||
};
|
||
|
||
// ---- byteindex --------------------------------------------------------
|
||
// ref/hare/strings/index.ha:147 (byteindex tests, both arms).
|
||
|
||
@test fn byteindex_str_cases() void = {
|
||
match (strings.byteindex("hello", "hello")) {
|
||
case let i: i32 => { if (i != 0) { fail(); }; };
|
||
case void => { fail(); };
|
||
};
|
||
match (strings.byteindex("hello world!", "world")) {
|
||
case let i: i32 => { if (i != 6) { fail(); }; };
|
||
case void => { fail(); };
|
||
};
|
||
match (strings.byteindex("hello world!", "orld!")) {
|
||
case let i: i32 => { if (i != 7) { fail(); }; };
|
||
case void => { fail(); };
|
||
};
|
||
match (strings.byteindex("hello world!", "word")) {
|
||
case let i: i32 => { fail(); };
|
||
case void => void;
|
||
};
|
||
// empty needle hits at 0 (ref/hare/bytes/index.ha:63).
|
||
match (strings.byteindex("hello", "")) {
|
||
case let i: i32 => { if (i != 0) { fail(); }; };
|
||
case void => { fail(); };
|
||
};
|
||
// empty haystack, non-empty needle — absent.
|
||
match (strings.byteindex("", "x")) {
|
||
case let i: i32 => { fail(); };
|
||
case void => void;
|
||
};
|
||
// multibyte substring in multibyte haystack.
|
||
match (strings.byteindex("こんにちは", "ちは")) {
|
||
case let i: i32 => { if (i != 9) { fail(); }; };
|
||
case void => { fail(); };
|
||
};
|
||
};
|
||
|
||
@test fn byteindex_rune_cases() void = {
|
||
// ASCII rune (1-byte encoding).
|
||
match (strings.byteindex("hello world", 'w')) {
|
||
case let i: i32 => { if (i != 6) { fail(); }; };
|
||
case void => { fail(); };
|
||
};
|
||
// 2-byte rune U+00E9 'é' inside "café".
|
||
match (strings.byteindex("café", 0xE9u32: rune)) {
|
||
case let i: i32 => { if (i != 3) { fail(); }; };
|
||
case void => { fail(); };
|
||
};
|
||
// 3-byte rune U+3061 'ち' inside "こんにちは".
|
||
match (strings.byteindex("こんにちは", 0x3061u32: rune)) {
|
||
case let i: i32 => { if (i != 9) { fail(); }; };
|
||
case void => { fail(); };
|
||
};
|
||
// 4-byte rune U+1F980 '🦀' inside "ab🦀cd".
|
||
match (strings.byteindex("ab🦀cd", 0x1F980u32: rune)) {
|
||
case let i: i32 => { if (i != 2) { fail(); }; };
|
||
case void => { fail(); };
|
||
};
|
||
// absent.
|
||
match (strings.byteindex("こんにちは", 'q')) {
|
||
case let i: i32 => { fail(); };
|
||
case void => void;
|
||
};
|
||
};
|
||
|
||
// ---- rbyteindex -------------------------------------------------------
|
||
|
||
@test fn rbyteindex_cases() void = {
|
||
// Two 'た' in "またあったね" — ref/hare/strings/index.ha:160-161.
|
||
match (strings.byteindex("またあったね", "た")) {
|
||
case let i: i32 => { if (i != 3) { fail(); }; };
|
||
case void => { fail(); };
|
||
};
|
||
match (strings.rbyteindex("またあったね", "た")) {
|
||
case let i: i32 => { if (i != 12) { fail(); }; };
|
||
case void => { fail(); };
|
||
};
|
||
// Rune arm, multi-byte 'に' U+306B.
|
||
match (strings.rbyteindex("こんにちは", 0x306Bu32: rune)) {
|
||
case let i: i32 => { if (i != 6) { fail(); }; };
|
||
case void => { fail(); };
|
||
};
|
||
// Absent.
|
||
match (strings.rbyteindex("abc", 'z')) {
|
||
case let i: i32 => { fail(); };
|
||
case void => void;
|
||
};
|
||
};
|
||
|
||
// ---- trimprefix / trimsuffix ------------------------------------------
|
||
// ref/hare/strings/trim.ha:99-107.
|
||
|
||
@test fn trimprefix_cases() void = {
|
||
if (!streq(strings.trimprefix("", ""), "")) { fail(); };
|
||
if (!streq(strings.trimprefix("", "blablabla"), "")) { fail(); };
|
||
if (!streq(strings.trimprefix("hello, world", "hello"), ", world")) { fail(); };
|
||
if (!streq(strings.trimprefix("blablabla", "bla"), "blabla")) { fail(); };
|
||
// equal-length match strips to empty.
|
||
if (!streq(strings.trimprefix("hello", "hello"), "")) { fail(); };
|
||
};
|
||
|
||
@test fn trimsuffix_cases() void = {
|
||
if (!streq(strings.trimsuffix("", ""), "")) { fail(); };
|
||
if (!streq(strings.trimsuffix("", "blablabla"), "")) { fail(); };
|
||
if (!streq(strings.trimsuffix("hello, world", "world"), "hello, ")) { fail(); };
|
||
if (!streq(strings.trimsuffix("blablabla", "bla"), "blabla")) { fail(); };
|
||
if (!streq(strings.trimsuffix("hello", "hello"), "")) { fail(); };
|
||
};
|
||
|
||
// ---- ltrim / rtrim / trim (single-rune subset) ------------------------
|
||
// ref/hare/strings/trim.ha:75-97. Vectors restricted to single-rune
|
||
// patterns (Hare's `rune...` blocks on task #16).
|
||
|
||
@test fn ltrim_cases() void = {
|
||
if (!streq(strings.ltrim("", 'x'), "")) { fail(); };
|
||
if (!streq(strings.ltrim("aaabc", 'a'), "bc")) { fail(); };
|
||
if (!streq(strings.ltrim("xyz", 'a'), "xyz")) { fail(); }; // no match
|
||
if (!streq(strings.ltrim("aaaa", 'a'), "")) { fail(); }; // all stripped
|
||
// 4-byte rune pattern — '𝚊' = U+1D68A.
|
||
if (!streq(strings.ltrim("𝚊𝚊hi", 0x1D68Au32: rune), "hi")) { fail(); };
|
||
};
|
||
|
||
@test fn rtrim_cases() void = {
|
||
if (!streq(strings.rtrim("", 'x'), "")) { fail(); };
|
||
if (!streq(strings.rtrim("bcaaa", 'a'), "bc")) { fail(); };
|
||
if (!streq(strings.rtrim("xyz", 'a'), "xyz")) { fail(); };
|
||
if (!streq(strings.rtrim("aaaa", 'a'), "")) { fail(); };
|
||
if (!streq(strings.rtrim("hi𝚊𝚊", 0x1D68Au32: rune), "hi")) { fail(); };
|
||
};
|
||
|
||
@test fn trim_cases() void = {
|
||
if (!streq(strings.trim("", 'x'), "")) { fail(); };
|
||
if (!streq(strings.trim("aaabcaaa", 'a'), "bc")) { fail(); };
|
||
if (!streq(strings.trim("xyz", 'a'), "xyz")) { fail(); };
|
||
if (!streq(strings.trim("aaaa", 'a'), "")) { fail(); };
|
||
};
|
||
|
||
// ---- compare ----------------------------------------------------------
|
||
// ref/hare/strings/compare.ha:16.
|
||
|
||
@test fn compare_cases() void = {
|
||
if (strings.compare("ABC", "ABC") != 0) { fail(); };
|
||
if (strings.compare("ABC", "AB") <= 0) { fail(); };
|
||
if (strings.compare("AB", "ABC") >= 0) { fail(); };
|
||
if (strings.compare("BCD", "ABC") <= 0) { fail(); };
|
||
if (strings.compare("ABC", "abc") >= 0) { fail(); };
|
||
};
|
||
|
||
// ---- toutf8 / fromutf8_unsafe roundtrip -------------------------------
|
||
// ref/hare/strings/utf8.ha:31.
|
||
|
||
@test fn utf8_roundtrip_cases() void = {
|
||
let s: str = "hello";
|
||
let b: []u8 = strings.toutf8(s);
|
||
if (b.len != 5) { fail(); };
|
||
if (b[0] != 104u8) { fail(); }; // 'h'
|
||
let r: str = strings.fromutf8_unsafe(b);
|
||
if (!streq(r, "hello")) { fail(); };
|
||
if (r.ptr != s.ptr) { fail(); }; // borrowed, not copied
|
||
};
|
||
|
||
// ---- iter / next ------------------------------------------------------
|
||
// ref/hare/strings/iter.ha:84-108. Hare's @test fn iter() uses prev +
|
||
// riter heavily; both are deferred (no `utf8.prev`). Rebuild forward-
|
||
// only here: empty / ASCII / 2-byte / 3-byte / 4-byte / done@EOI /
|
||
// mixed-width.
|
||
|
||
@test fn iter_empty_cases() void = {
|
||
let it: strings.iterator = strings.iter("");
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { fail(); };
|
||
case utf8.done => void;
|
||
};
|
||
// Repeated next after done stays done.
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { fail(); };
|
||
case utf8.done => void;
|
||
};
|
||
};
|
||
|
||
@test fn iter_ascii_cases() void = {
|
||
let it: strings.iterator = strings.iter("hi!");
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { if (r != 'h') { fail(); }; };
|
||
case utf8.done => { fail(); };
|
||
};
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { if (r != 'i') { fail(); }; };
|
||
case utf8.done => { fail(); };
|
||
};
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { if (r != '!') { fail(); }; };
|
||
case utf8.done => { fail(); };
|
||
};
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { fail(); };
|
||
case utf8.done => void;
|
||
};
|
||
};
|
||
|
||
@test fn iter_twobyte_cases() void = {
|
||
let it: strings.iterator = strings.iter("café");
|
||
let i: i32 = 0;
|
||
let expect: [4]rune;
|
||
expect[0] = 'c'; expect[1] = 'a'; expect[2] = 'f';
|
||
expect[3] = 0xE9u32: rune; // 'é' U+00E9
|
||
for (i < 4) {
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { if (r != expect[i]) { fail(); }; };
|
||
case utf8.done => { fail(); };
|
||
};
|
||
i += 1;
|
||
};
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { fail(); };
|
||
case utf8.done => void;
|
||
};
|
||
};
|
||
|
||
@test fn iter_threebyte_cases() void = {
|
||
let it: strings.iterator = strings.iter("こんにちは");
|
||
let i: i32 = 0;
|
||
let expect: [5]rune;
|
||
expect[0] = 0x3053u32: rune; // 'こ'
|
||
expect[1] = 0x3093u32: rune; // 'ん'
|
||
expect[2] = 0x306Bu32: rune; // 'に'
|
||
expect[3] = 0x3061u32: rune; // 'ち'
|
||
expect[4] = 0x306Fu32: rune; // 'は'
|
||
for (i < 5) {
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { if (r != expect[i]) { fail(); }; };
|
||
case utf8.done => { fail(); };
|
||
};
|
||
i += 1;
|
||
};
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { fail(); };
|
||
case utf8.done => void;
|
||
};
|
||
};
|
||
|
||
@test fn iter_fourbyte_cases() void = {
|
||
let it: strings.iterator = strings.iter("🦀rust");
|
||
let i: i32 = 0;
|
||
let expect: [5]rune;
|
||
expect[0] = 0x1F980u32: rune; // '🦀'
|
||
expect[1] = 'r'; expect[2] = 'u'; expect[3] = 's'; expect[4] = 't';
|
||
for (i < 5) {
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { if (r != expect[i]) { fail(); }; };
|
||
case utf8.done => { fail(); };
|
||
};
|
||
i += 1;
|
||
};
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { fail(); };
|
||
case utf8.done => void;
|
||
};
|
||
};
|
||
|
||
@test fn iter_mixed_cases() void = {
|
||
// "Hello, 世界! 🌍" — 1+1+1+1+1+1+1+3+3+1+1+4 = 12 runes,
|
||
// widths 1/3/4 mixed.
|
||
let it: strings.iterator = strings.iter("Hello, 世界! 🌍");
|
||
let i: i32 = 0;
|
||
let expect: [12]rune;
|
||
expect[0] = 'H'; expect[1] = 'e'; expect[2] = 'l'; expect[3] = 'l';
|
||
expect[4] = 'o'; expect[5] = ','; expect[6] = ' ';
|
||
expect[7] = 0x4E16u32: rune; // '世'
|
||
expect[8] = 0x754Cu32: rune; // '界'
|
||
expect[9] = '!'; expect[10] = ' ';
|
||
expect[11] = 0x1F30Du32: rune; // '🌍'
|
||
for (i < 12) {
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { if (r != expect[i]) { fail(); }; };
|
||
case utf8.done => { fail(); };
|
||
};
|
||
i += 1;
|
||
};
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { fail(); };
|
||
case utf8.done => void;
|
||
};
|
||
};
|
||
|
||
// ---- prev / riter / iterstr / slice / position -----------------------
|
||
// ref/hare/strings/iter.ha:84-127. The Hare @test fn iter body uses
|
||
// `s = riter(...)` mid-test to swap the iterator's direction; ww's
|
||
// sret-into-existing-slot path handles that fine (probed pre-port).
|
||
|
||
@test fn iter_prev_at_start_cases() void = {
|
||
let it: strings.iterator = strings.iter("hi");
|
||
match (strings.prev(&it)) {
|
||
case utf8.done => void;
|
||
case let r: rune => { fail(); };
|
||
};
|
||
};
|
||
|
||
@test fn iter_prev_ascii_cases() void = {
|
||
let it: strings.iterator = strings.iter("abc");
|
||
match (strings.next(&it)) {
|
||
case let r: rune => { if (r != 'a') { fail(); }; };
|
||
case utf8.done => { fail(); };
|
||
};
|
||
match (strings.prev(&it)) {
|
||
case let r: rune => { if (r != 'a') { fail(); }; };
|
||
case utf8.done => { fail(); };
|
||
};
|
||
match (strings.prev(&it)) {
|
||
case utf8.done => void;
|
||
case let r: rune => { fail(); };
|
||
};
|
||
};
|
||
|
||
// Mirror of ref/hare/strings/iter.ha:84-108 — `iter("こんにちは")`,
|
||
// step+back+iterstr+riter-reassign sequence.
|
||
@test fn iter_full_cases() void = {
|
||
let s: strings.iterator = strings.iter("こんにちは");
|
||
match (strings.prev(&s)) {
|
||
case utf8.done => void;
|
||
case let r: rune => { fail(); };
|
||
};
|
||
let expect1: [2]rune;
|
||
expect1[0] = 0x3053u32: rune; // 'こ'
|
||
expect1[1] = 0x3093u32: rune; // 'ん'
|
||
let i: i32 = 0;
|
||
for (i < 2) {
|
||
match (strings.next(&s)) {
|
||
case let r: rune => { if (r != expect1[i]) { fail(); }; };
|
||
case utf8.done => { fail(); };
|
||
};
|
||
i += 1;
|
||
};
|
||
if (!streq(strings.iterstr(&s), "にちは")) { fail(); };
|
||
match (strings.prev(&s)) {
|
||
case let r: rune => { if (r != 0x3093u32: rune) { fail(); }; }; // 'ん'
|
||
case utf8.done => { fail(); };
|
||
};
|
||
let expect2: [4]rune;
|
||
expect2[0] = 0x3093u32: rune; // 'ん'
|
||
expect2[1] = 0x306Bu32: rune; // 'に'
|
||
expect2[2] = 0x3061u32: rune; // 'ち'
|
||
expect2[3] = 0x306Fu32: rune; // 'は'
|
||
i = 0;
|
||
for (i < 4) {
|
||
match (strings.next(&s)) {
|
||
case let r: rune => { if (r != expect2[i]) { fail(); }; };
|
||
case utf8.done => { fail(); };
|
||
};
|
||
i += 1;
|
||
};
|
||
match (strings.next(&s)) {
|
||
case utf8.done => void;
|
||
case let r: rune => { fail(); };
|
||
};
|
||
// Repeated next-after-done stays done.
|
||
match (strings.next(&s)) {
|
||
case utf8.done => void;
|
||
case let r: rune => { fail(); };
|
||
};
|
||
match (strings.prev(&s)) {
|
||
case let r: rune => { if (r != 0x306Fu32: rune) { fail(); }; }; // 'は'
|
||
case utf8.done => { fail(); };
|
||
};
|
||
|
||
// Swap to a reverse iterator. sret-into-existing-slot.
|
||
s = strings.riter("にちは");
|
||
let expect3: [3]rune;
|
||
expect3[0] = 0x306Fu32: rune; // 'は'
|
||
expect3[1] = 0x3061u32: rune; // 'ち'
|
||
expect3[2] = 0x306Bu32: rune; // 'に'
|
||
i = 0;
|
||
for (i < 3) {
|
||
match (strings.next(&s)) {
|
||
case let r: rune => { if (r != expect3[i]) { fail(); }; };
|
||
case utf8.done => { fail(); };
|
||
};
|
||
i += 1;
|
||
};
|
||
match (strings.next(&s)) {
|
||
case utf8.done => void;
|
||
case let r: rune => { fail(); };
|
||
};
|
||
match (strings.prev(&s)) {
|
||
case let r: rune => { if (r != 0x306Bu32: rune) { fail(); }; }; // 'に'
|
||
case utf8.done => { fail(); };
|
||
};
|
||
};
|
||
|
||
@test fn iter_position_cases() void = {
|
||
let it: strings.iterator = strings.iter("café"); // 5 bytes: c-a-f-é(2)
|
||
if (strings.position(&it) != 0) { fail(); };
|
||
match (strings.next(&it)) { case let r: rune => void; case utf8.done => { fail(); }; };
|
||
if (strings.position(&it) != 1) { fail(); };
|
||
match (strings.next(&it)) { case let r: rune => void; case utf8.done => { fail(); }; };
|
||
match (strings.next(&it)) { case let r: rune => void; case utf8.done => { fail(); }; };
|
||
if (strings.position(&it) != 3) { fail(); };
|
||
match (strings.next(&it)) { case let r: rune => void; case utf8.done => { fail(); }; };
|
||
if (strings.position(&it) != 5) { fail(); };
|
||
};
|
||
|
||
// ref/hare/strings/iter.ha:110 @test fn slice. Hare uses `let t = s;`
|
||
// to copy the iterator; ww re-initialises t from the same source to
|
||
// stay in scope of #32 (local struct ident rhs already fixed) without
|
||
// reaching for #35's sibling latents.
|
||
@test fn iter_slice_cases() void = {
|
||
let s: strings.iterator = strings.iter("こんにちは");
|
||
let t: strings.iterator = strings.iter("こんにちは");
|
||
if (strings.slice(&s, &t).len != 0) { fail(); };
|
||
if (strings.slice(&t, &s).len != 0) { fail(); };
|
||
let i: i32 = 0;
|
||
for (i < 2) {
|
||
match (strings.next(&s)) {
|
||
case let r: rune => void;
|
||
case utf8.done => { fail(); };
|
||
};
|
||
match (strings.next(&t)) {
|
||
case let r: rune => void;
|
||
case utf8.done => { fail(); };
|
||
};
|
||
i += 1;
|
||
};
|
||
if (strings.slice(&s, &t).len != 0) { fail(); };
|
||
if (strings.slice(&t, &s).len != 0) { fail(); };
|
||
i = 0;
|
||
for (i < 3) {
|
||
match (strings.next(&t)) {
|
||
case let r: rune => void;
|
||
case utf8.done => { fail(); };
|
||
};
|
||
i += 1;
|
||
};
|
||
if (!streq(strings.slice(&s, &t), "にちは")) { fail(); };
|
||
i = 0;
|
||
for (i < 3) {
|
||
match (strings.next(&s)) {
|
||
case let r: rune => void;
|
||
case utf8.done => { fail(); };
|
||
};
|
||
i += 1;
|
||
};
|
||
if (strings.slice(&s, &t).len != 0) { fail(); };
|
||
if (strings.slice(&t, &s).len != 0) { fail(); };
|
||
};
|
||
|
||
@test fn iter_iterstr_reverse_cases() void = {
|
||
// Reverse iter: iterstr is `src[0:offs]` — bytes BEFORE the cursor
|
||
// (the still-to-be-walked region in reverse direction).
|
||
let rit: strings.iterator = strings.riter("hello");
|
||
if (!streq(strings.iterstr(&rit), "hello")) { fail(); };
|
||
match (strings.next(&rit)) { case let r: rune => void; case utf8.done => { fail(); }; };
|
||
if (!streq(strings.iterstr(&rit), "hell")) { fail(); };
|
||
match (strings.next(&rit)) { case let r: rune => void; case utf8.done => { fail(); }; };
|
||
match (strings.next(&rit)) { case let r: rune => void; case utf8.done => { fail(); }; };
|
||
if (!streq(strings.iterstr(&rit), "he")) { fail(); };
|
||
};
|
||
|
||
export fn main() i32 = {
|
||
signalled = 1; dup_cases();
|
||
signalled = 2; concat_cases();
|
||
signalled = 3; hasprefix_cases();
|
||
signalled = 4; hassuffix_cases();
|
||
signalled = 5; contains_cases();
|
||
signalled = 6; byteindex_str_cases();
|
||
signalled = 7; byteindex_rune_cases();
|
||
signalled = 8; rbyteindex_cases();
|
||
signalled = 9; trimprefix_cases();
|
||
signalled = 10; trimsuffix_cases();
|
||
signalled = 11; ltrim_cases();
|
||
signalled = 12; rtrim_cases();
|
||
signalled = 13; trim_cases();
|
||
signalled = 14; compare_cases();
|
||
signalled = 15; utf8_roundtrip_cases();
|
||
signalled = 16; iter_empty_cases();
|
||
signalled = 17; iter_ascii_cases();
|
||
signalled = 18; iter_twobyte_cases();
|
||
signalled = 19; iter_threebyte_cases();
|
||
signalled = 20; iter_fourbyte_cases();
|
||
signalled = 21; iter_mixed_cases();
|
||
signalled = 22; iter_prev_at_start_cases();
|
||
signalled = 23; iter_prev_ascii_cases();
|
||
signalled = 24; iter_full_cases();
|
||
signalled = 25; iter_position_cases();
|
||
signalled = 26; iter_iterstr_reverse_cases();
|
||
signalled = 27; iter_slice_cases();
|
||
return 0;
|
||
};
|