Throw compile-time error if a label is used with a curried function (r…

…esolves gkz#751)
misterfish · Jun 4, 2016 · ad03579 · ad03579
1 parent b7a0909
commit ad03579
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diff --git a/lib/ast.js b/lib/ast.js
diff --git a/src/ast.ls b/src/ast.ls
@@ -2674,6 +2674,7 @@ class exports.If extends Node
 # A labeled block or statement.
 class exports.Label extends Node
     (@label or \_, @it) ->
+        @carp "can't use label with a curried function (attempted label '#{@label}')" if @it.curried
         if fun = it instanceof [Fun, Class] and it or
              it.calling and it.it.head
             fun.name or fun <<< {name: @label, +labeled}

diff --git a/test/compilation.ls b/test/compilation.ls
@@ -35,6 +35,7 @@ compileThrows 'unmatched `]`' 3 '[{\n\n]}'
 
 compileThrows 'missing `)CALL`' 1 'f('
 
+compileThrows "can't use label with a curried function (attempted label 'abc')" 1 ':abc (a, b) --> a + b'
 
 throws '''
   empty range on line 1