CS1 tagged template literals (and CS2 interpolated strings as template literals)

test/error_messages.coffee

@@ -136,48 +136,47 @@ test "#1096: unexpected generated tokens", ->
     {///#{a}///i: val}
      ^^^^^^^^^^^
   '''
-# TODO: Tagged template literals impl: disabling these tests, as now valid 'tagged template literals'
-#  # Unexpected string
-#  assertErrorFormat "a''", '''
-#    [stdin]:1:2: error: unexpected string
-#    a''
-#     ^^
-#  '''
-#  assertErrorFormat 'a""', '''
-#    [stdin]:1:2: error: unexpected string
-#    a""
-#     ^^
-#  '''
-#  assertErrorFormat "a'b'", '''
-#    [stdin]:1:2: error: unexpected string
-#    a'b'
-#     ^^^
-#  '''
-#  assertErrorFormat 'a"b"', '''
-#    [stdin]:1:2: error: unexpected string
-#    a"b"
-#     ^^^
-#  '''
-#  assertErrorFormat "a'''b'''", """
-#    [stdin]:1:2: error: unexpected string
-#    a'''b'''
-#     ^^^^^^^
-#  """
-#  assertErrorFormat 'a"""b"""', '''
-#    [stdin]:1:2: error: unexpected string
-#    a"""b"""
-#     ^^^^^^^
-#  '''
-#  assertErrorFormat 'a"#{b}"', '''
-#    [stdin]:1:2: error: unexpected string
-#    a"#{b}"
-#     ^^^^^^
-#  '''
-#  assertErrorFormat 'a"""#{b}"""', '''
-#    [stdin]:1:2: error: unexpected string
-#    a"""#{b}"""
-#     ^^^^^^^^^^
-#  '''
+  # Unexpected string
+  assertErrorFormat "1''", '''
+    [stdin]:1:2: error: unexpected string
+    1''
+     ^^
+  '''
+  assertErrorFormat '1""', '''
+    [stdin]:1:2: error: unexpected string
+    1""
+     ^^
+  '''
+  assertErrorFormat "1'b'", '''
+    [stdin]:1:2: error: unexpected string
+    1'b'
+     ^^^
+  '''
+  assertErrorFormat '1"b"', '''
+    [stdin]:1:2: error: unexpected string
+    1"b"
+     ^^^
+  '''
+  assertErrorFormat "1'''b'''", """
+    [stdin]:1:2: error: unexpected string
+    1'''b'''
+     ^^^^^^^
+  """
+  assertErrorFormat '1"""b"""', '''
+    [stdin]:1:2: error: unexpected string
+    1"""b"""
+     ^^^^^^^
+  '''
+  assertErrorFormat '1"#{b}"', '''
+    [stdin]:1:2: error: unexpected string
+    1"#{b}"
+     ^^^^^^
+  '''
+  assertErrorFormat '1"""#{b}"""', '''
+    [stdin]:1:2: error: unexpected string
+    1"""#{b}"""
+     ^^^^^^^^^^
+  '''
   assertErrorFormat 'import foo from "lib-#{version}"', '''
     [stdin]:1:17: error: the name of the module to be imported from must be an uninterpolated string
     import foo from "lib-#{version}"

test/tagged_template_literals.coffee

@@ -1,8 +1,91 @@
 # Tagged template literals
 # ------------------------
 
-func = (text) -> "I saw: #{text}"
+assertErrorFormat = (code, expectedErrorFormat) ->
+  throws (-> CoffeeScript.run code), (err) ->
+    err.colorful = no
+    eq expectedErrorFormat, "#{err}"
+    yes
+
+func = (text, expressions...) ->
+  "text: [#{text.join ','}] expressions: [#{expressions.join ','}]"
+
+obj =
+  func: func
+
+
+test "tagged template literals: non-interpolated strings and tag function", ->
+
+  eq 'text: [single-line single quotes] expressions: []', func'single-line single quotes'
+
+  eq 'text: [single-line double quotes] expressions: []', func"single-line double quotes"
+
+  eq 'text: [single-line block string] expressions: []', func"""single-line block string"""
+
+  eq 'text: [multi-line single quotes] expressions: []', func'multi-line
+                                                               single quotes'
+
+  eq 'text: [multi-line double quotes] expressions: []', func"multi-line
+                                                               double quotes"
+
+  eq 'text: [multi-line\n block string] expressions: []', func"""
+                                                               multi-line
+                                                                block string
+                                                                 """
+
+test "tagged template literals: string prefix must be function", ->
+
+  assertErrorFormat "nofunc''", 'ReferenceError: nofunc is not defined'
+
+  assertErrorFormat "1''", '''
+    [stdin]:1:2: error: unexpected string
+    1''
+     ^^
+  '''
+
+  assertErrorFormat "[1]''", '''
+    [stdin]:1:4: error: unexpected string
+    [1]''
+       ^^
+  '''
+
+# TODO: implement this case
+#test "tagged template literals: non-interpolated strings and tag property function", ->
+#
+#  eq 'text: [single-line single quotes] expressions: []', obj.func'single-line single quotes'
+#
+#  eq 'text: [single-line double quotes] expressions: []', obj.func"single-line double quotes"
+#
+#  eq 'text: [single-line block string] expressions: []', obj.func"""single-line block string"""
+#
+#  eq 'text: [multi-line single quotes] expressions: []', obj.func'multi-line
+#  single quotes'
+#
+#  eq 'text: [multi-line double quotes] expressions: []', obj.func"multi-line
+#  double quotes"
+#
+#  eq 'text: [multi-line\n block string] expressions: []', obj.func"""
+#                                                                   multi-line
+#                                                                    block string
+#                                                                     """
+
+# TODO: implement this case
+test "tagged template literals: interpolated strings and tag function", ->
+  # TODO: single-line single quotes
+  # TODO: single-line double quotes
+  # TODO: single-line block string
+  # TODO: multi-line single quotes
+  # TODO: multi-line double quotes
+  # TODO: multi-line block string
+
+# TODO: implement this case
+test "tagged template literals: interpolated strings and tag property function", ->
+  # TODO: single-line single quotes
+  # TODO: single-line double quotes
+  # TODO: single-line block string
+  # TODO: multi-line single quotes
+  # TODO: multi-line double quotes
+  # TODO: multi-line block string
+
+
 
-eq 'I saw: a single line string', func'a single line string'
-eq 'I saw: a multi line string', func'a multi line
-string'