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Versions: 143
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Contents
module Sass
module Tree
# A dynamic node representing a Sass `@warn` statement.
#
# @see Sass::Tree
class WarnNode < Node
# @param expr [Script::Node] The expression to print
def initialize(expr)
@expr = expr
super()
end
protected
# @see Node#to_src
def to_src(tabs, opts, fmt)
"#{' ' * tabs}@warn #{@expr.to_sass(opts)}#{semi fmt}\n"
end
# Prints the expression to STDERR with a stylesheet trace.
#
# @param environment [Sass::Environment] The lexical environment containing
# variable and mixin values
def _perform(environment)
environment.push_frame(:filename => filename, :line => line)
res = @expr.perform(environment)
res = res.value if res.is_a?(Sass::Script::String)
msg = "WARNING: #{res}\n"
environment.stack.reverse.each_with_index do |entry, i|
msg << " #{i == 0 ? "on" : "from"} line #{entry[:line]}" <<
" of #{entry[:filename] || "an unknown file"}"
msg << ", in `#{entry[:mixin]}'" if entry[:mixin]
msg << "\n"
end
Haml::Util.haml_warn msg
[]
ensure
environment.pop_frame
end
end
end
end
Version data entries
143 entries across 143 versions & 3 rubygems