Add m-esr52 at 52.6.0

1 files changed, 94 insertions, 0 deletions

diff --git a/js/src/tests/ecma_5/extensions/strict-function-statements.js b/js/src/tests/ecma_5/extensions/strict-function-statements.js
new file mode 100644
index 000000000..e6dc15139
--- /dev/null
+++ b/js/src/tests/ecma_5/extensions/strict-function-statements.js
@@ -0,0 +1,94 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+// Ordinary function definitions should be unaffected.
+assertEq(testLenientAndStrict("function f() { }",
+                              parsesSuccessfully,
+                              parsesSuccessfully),
+         true);
+
+// Lambdas are always permitted within blocks.
+assertEq(testLenientAndStrict("{ (function f() { }) }",
+                              parsesSuccessfully,
+                              parsesSuccessfully),
+         true);
+
+// Function statements within unbraced blocks are forbidden in strict mode code.
+// They are allowed only under if statements in sloppy mode.
+assertEq(testLenientAndStrict("if (true) function f() { }",
+                              parsesSuccessfully,
+                              parseRaisesException(SyntaxError)),
+         true);
+assertEq(testLenientAndStrict("while (true) function f() { }",
+                              parseRaisesException(SyntaxError),
+                              parseRaisesException(SyntaxError)),
+         true);
+assertEq(testLenientAndStrict("do function f() { } while (true);",
+                              parseRaisesException(SyntaxError),
+                              parseRaisesException(SyntaxError)),
+         true);
+assertEq(testLenientAndStrict("for(;;) function f() { }",
+                              parseRaisesException(SyntaxError),
+                              parseRaisesException(SyntaxError)),
+         true);
+assertEq(testLenientAndStrict("for(x in []) function f() { }",
+                              parseRaisesException(SyntaxError),
+                              parseRaisesException(SyntaxError)),
+         true);
+assertEq(testLenientAndStrict("with(o) function f() { }",
+                              parseRaisesException(SyntaxError),
+                              parseRaisesException(SyntaxError)),
+         true);
+assertEq(testLenientAndStrict("switch(1) { case 1: function f() { } }",
+                              parsesSuccessfully,
+                              parsesSuccessfully),
+         true);
+assertEq(testLenientAndStrict("x: function f() { }",
+                              parsesSuccessfully,
+                              parseRaisesException(SyntaxError)),
+         true);
+assertEq(testLenientAndStrict("try { function f() { } } catch (x) { }",
+                              parsesSuccessfully,
+                              parsesSuccessfully),
+         true);
+
+// Lambdas are always permitted within any sort of statement.
+assertEq(testLenientAndStrict("if (true) (function f() { })",
+                              parsesSuccessfully,
+                              parsesSuccessfully),
+         true);
+
+// Function statements are permitted in blocks within lenient functions.
+assertEq(parsesSuccessfully("function f() { function g() { } }"),
+         true);
+
+// Function statements are permitted in if statement within lenient functions.
+assertEq(parsesSuccessfully("function f() { if (true) function g() { } }"),
+         true);
+
+assertEq(parseRaisesException(SyntaxError)
+         ("function f() { 'use strict'; if (true) function g() { } }"),
+         true);
+
+assertEq(parsesSuccessfully("function f() { 'use strict'; { function g() { } } }"),
+         true);
+
+assertEq(parsesSuccessfully("function f() { 'use strict'; if (true) (function g() { }) }"),
+         true);
+
+assertEq(parsesSuccessfully("function f() { 'use strict'; { (function g() { }) } }"),
+         true);
+
+// Eval should behave the same way. (The parse-only tests use the Function constructor.)
+assertEq(testLenientAndStrict("function f() { }",
+                              completesNormally,
+                              completesNormally),
+         true);
+assertEq(testLenientAndStrict("{ function f() { } }",
+                              completesNormally,
+                              completesNormally),
+         true);
+
+reportCompare(true, true);