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module Sass
# An exception class that keeps track of
# the line of the Sass template it was raised on
# and the Sass file that was being parsed (if applicable).
#
# All Sass errors are raised as {Sass::SyntaxError}s.
class SyntaxError < StandardError
# The line of the Sass template on which the error occurred.
#
# @return [Fixnum]
attr_accessor :sass_line
# The name of the file that was being parsed when the exception was raised.
# This could be `nil` if no filename is available.
#
# @return [String]
attr_reader :sass_filename
# @param msg [String] The error message
# @param lineno [Fixnum] See \{#sass\_line}
def initialize(msg, lineno = nil)
@message = msg
@sass_line = lineno
end
# Add information about the filename and line on which the error was raised,
# and re-raises the exception.
#
# @param filename [String] See \{#sass\_filename}
# @param line [Fixnum] See \{#sass\_line}
# @raise [Sass::SyntaxError] self
def add_metadata(filename, line)
self.sass_line ||= line
add_backtrace_entry(filename) unless sass_filename
raise self
end
# Adds a properly formatted entry to the exception's backtrace.
#
# @param filename [String] The file in which the error occurred,
# if applicable (defaults to "(sass)")
def add_backtrace_entry(filename) # :nodoc:
@sass_filename ||= filename
self.backtrace ||= []
self.backtrace.unshift "#{@sass_filename || '(sass)'}:#{@sass_line}"
end
# @return [String] The error message
def to_s
@message
end
end
# The class for Sass errors that are raised due to invalid unit conversions
# in SassScript.
class UnitConversionError < SyntaxError; end
end
Version data entries
82 entries across 81 versions & 6 rubygems