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Wrap error with lineno

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This commit is contained in:
Joshua Peek 2015-03-09 16:43:17 -07:00
parent 3b15a50eeb
commit cb4c3ceb4b
1 changed files with 18 additions and 10 deletions
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28
lib/execjs/duktape_runtime.rb
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@ -8,40 +8,48 @@ module ExecJS
@ctx = Duktape::Context.new(complex_object: nil)
@ctx.exec_string(encode(source), '(execjs)')
rescue Exception => e
reraise_error(e)
raise wrap_error(e)
end
def exec(source, options = {})
return unless /\S/ =~ source
@ctx.eval_string("(function(){#{encode(source)}})()", '(execjs)')
rescue Exception => e
reraise_error(e)
raise wrap_error(e)
end
def eval(source, options = {})
return unless /\S/ =~ source
@ctx.eval_string("(#{encode(source)})", '(execjs)')
rescue Exception => e
reraise_error(e)
raise wrap_error(e)
end
def call(identifier, *args)
@ctx.call_prop(identifier.split("."), *args)
rescue Exception => e
reraise_error(e)
raise wrap_error(e)
end
private
def reraise_error(e)
case e
def wrap_error(e)
klass = case e
when Duktape::SyntaxError
raise RuntimeError, e.message
RuntimeError
when Duktape::Error
raise ProgramError, e.message
ProgramError
when Duktape::InternalError
raise RuntimeError, e.message
RuntimeError
end
if klass
re = / \(line (\d+)\)$/
lineno = e.message[re, 1] || 1
error = klass.new(e.message.sub(re, ""))
error.set_backtrace(["(execjs):#{lineno}"] + e.backtrace)
error
else
raise e
e
end
end
end