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