test/preparser/strict-function-statement.pyt

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# In strict mode, function declarations may only appear as source elements.

# A template that performs the same strict-mode test in different
# scopes (global scope, function scope, and nested function scope).
def StrictTest(name, source, legacy):
  if legacy:
    extra_flags = [
      "--noharmony-scoping",
      "--noharmony-classes",
      "--noharmony-object-literals"]
  else:
    extra_flags = []
  Test(name, '"use strict";\n' + source, "strict_function",
       extra_flags)
  Test(name + '-infunc',
       'function foo() {\n "use strict";\n' + source +'\n}\n',
       "strict_function", 
       extra_flags)
  Test(name + '-infunc2',
       'function foo() {\n "use strict";\n  function bar() {\n' +
       source +'\n }\n}\n',
       "strict_function",
       extra_flags)

# Not testing with-scope, since with is not allowed in strict mode at all.

StrictTest("block", """
  { function foo() { } }
""", True)

StrictTest("try-w-catch", """
  try { function foo() { } } catch (e) { }
""", True)

StrictTest("try-w-finally", """
  try { function foo() { } } finally { }
""", True)

StrictTest("catch", """
  try { } catch (e) { function foo() { } }
""", True)

StrictTest("finally", """
  try { } finally { function foo() { } }
""", True)

StrictTest("for", """
  for (;;) { function foo() { } }
""", True)

StrictTest("while", """
  while (true) { function foo() { } }
""", True)

StrictTest("do", """
  do { function foo() { } } while (true);
""", True)

StrictTest("then", """
  if (true) { function foo() { } }
""", True)


StrictTest("then-w-else", """
  if (true) { function foo() { } } else { }
""", True)


StrictTest("else", """
  if (true) { } else { function foo() { } }
""", True)

StrictTest("switch-case", """
  switch (true) { case true: function foo() { } }
""", False)

StrictTest("labeled", """
  label: function foo() { }
""", False)