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allow leading newlines in coffee scripts

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This commit is contained in:
Jeremy Ashkenas
2010-01-12 08:49:39 -05:00
parent 9a61bbf005
commit 27f7ef09af
1 changed files with 7 additions and 0 deletions
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7
lib/coffee_script/rewriter.rb
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@@ -35,6 +35,7 @@ module CoffeeScript
def rewrite(tokens) def rewrite(tokens)
@tokens = tokens @tokens = tokens
adjust_comments adjust_comments
remove_leading_newlines
remove_mid_expression_newlines remove_mid_expression_newlines
move_commas_outside_outdents move_commas_outside_outdents
add_implicit_indentation add_implicit_indentation
@@ -82,6 +83,12 @@ module CoffeeScript
end end
end end
# Leading newlines would introduce an ambiguity in the grammar, so we
# dispatch them here.
def remove_leading_newlines
@tokens.shift if @tokens[0][0] == "\n"
end
# Some blocks occur in the middle of expressions -- when we're expecting # Some blocks occur in the middle of expressions -- when we're expecting
# this, remove their trailing newlines. # this, remove their trailing newlines.
def remove_mid_expression_newlines def remove_mid_expression_newlines