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ruby--ruby/lib/error_highlight/core_ext.rb
2021-07-02 16:48:20 +09:00

50 lines
1.2 KiB
Ruby

require_relative "formatter"
module ErrorHighlight
module CoreExt
# This is a marker to let `DidYouMean::Correctable#original_message` skip
# the following method definition of `to_s`.
# See https://github.com/ruby/did_you_mean/pull/152
SKIP_TO_S_FOR_SUPER_LOOKUP = true
private_constant :SKIP_TO_S_FOR_SUPER_LOOKUP
def to_s
msg = super.dup
locs = backtrace_locations
return msg unless locs
loc = locs.first
begin
node = RubyVM::AbstractSyntaxTree.of(loc, save_script_lines: true)
opts = {}
case self
when NoMethodError, NameError
opts[:point_type] = :name
opts[:name] = name
when TypeError, ArgumentError
opts[:point_type] = :args
end
spot = ErrorHighlight.spot(node, **opts)
rescue Errno::ENOENT, SyntaxError
end
if spot
points = ErrorHighlight.formatter.message_for(spot)
msg << points if !msg.include?(points)
end
msg
end
end
NameError.prepend(CoreExt)
# The extension for TypeError/ArgumentError is temporarily disabled due to many test failures
#TypeError.prepend(CoreExt)
#ArgumentError.prepend(CoreExt)
end