1 files changed, 92 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/latin1/dependent.js b/js/src/jit-test/tests/latin1/dependent.js
new file mode 100644
index 0000000000..f92bc9dc1c
--- /dev/null
+++ b/js/src/jit-test/tests/latin1/dependent.js
@@ -0,0 +1,92 @@
+function testSubstrLatin1() {
+    var s1 = "abcdefghijklmnopqrstuvwxyz12345678900000a";
+
+    // Static strings.
+    assertEq(s1.substr(s1.length - 1), "a");
+    assertEq(s1.substr(s1.length - 2), "0a");
+    assertEq(s1.substr(26, 3), "123");
+
+    // (Fat) inline strings.
+    var s2 = s1.substr(3, 5);
+    assertEq(isLatin1(s2), true);
+    assertEq(s2, "defgh");
+    s2 = s1.substr(0, 20);
+    assertEq(isLatin1(s2), true);
+    assertEq(s2, "abcdefghijklmnopqrst");
+
+    // Dependent string.
+    s2 = s1.substr(1, s1.length - 2);
+    assertEq(isLatin1(s2), true);
+    assertEq(s2.length, 39);
+    assertEq(s2, "bcdefghijklmnopqrstuvwxyz12345678900000");
+
+    s2 = s2.substr(2).substr(1);
+    assertEq(isLatin1(s2), true);
+    assertEq(s2, "efghijklmnopqrstuvwxyz12345678900000");
+}
+testSubstrLatin1();
+
+function testSubstrTwoByte() {
+    // Two byte string.
+    var s1 = "abcdefghijklmnopqrstuvwxyz12345678900000a\u1480";
+    assertEq(isLatin1(s1), false);
+
+    // Static string.
+    var s2 = s1.substr(28, 1);
+    assertEq(s2, "3");
+
+    // Inline string.
+    s2 = s1.substr(3, 5);
+    assertEq(s2, "defgh");
+
+    // Dependent string.
+    s2 = s1.substr(2);
+    assertEq(isLatin1(s2), false);
+    assertEq(s2, "cdefghijklmnopqrstuvwxyz12345678900000a\u1480");
+
+    s2 = s2.substr(2).substr(1);
+    assertEq(isLatin1(s2), false);
+    assertEq(s2, "fghijklmnopqrstuvwxyz12345678900000a\u1480");
+}
+testSubstrTwoByte();
+
+function testSubstring() {
+    var s1 = "abcdefghijklmnopqrstuvwxyz123456789000ab";
+    var s2 = s1.substring(1, 8);
+    assertEq(isLatin1(s2), true);
+    assertEq(s2, "bcdefgh");
+    s2 = s1.substring(0, s1.length - 1);
+    assertEq(isLatin1(s2), true);
+    assertEq(s2, "abcdefghijklmnopqrstuvwxyz123456789000a");
+}
+testSubstring();
+
+function testSlice() {
+    var s1 = "abcdefghijklmnopqrstuvwxyz123456789000ABC";
+    var s2 = s1.slice(1, 8);
+    assertEq(isLatin1(s2), true);
+    assertEq(s2, "bcdefgh");
+    s2 = s1.slice(0, -2);
+    assertEq(isLatin1(s2), true);
+    assertEq(s2, "abcdefghijklmnopqrstuvwxyz123456789000A");
+}
+testSlice();
+
+function testUndepend() {
+    // Latin1
+    var s = "abcdefg".repeat(7);
+    s.indexOf("def"); // flatten
+    assertEq(isLatin1(s), true);
+
+    var dep = s.substr(7);
+    var res = dep.replace(/abcdef/g, ""); // StrReplaceRegexpRemove undepends.
+    assertEq(res, "gggggg");
+
+    // TwoByte
+    var s = "abcdefg\u1200".repeat(6);
+    s.indexOf("def"); // flatten
+    var dep = s.substr(8);
+    var res = dep.replace(/abcdefg/g, ""); // StrReplaceRegexpRemove undepends.
+    assertEq(res, "\u1200\u1200\u1200\u1200\u1200");
+}
+testUndepend();