Sha256: 56217eabbc95752cea65f31eea8e870c00856fba52c4c8e6527d617fa37bd39b
Contents?: true
Size: 1.97 KB
Versions: 14
Compression:
Stored size: 1.97 KB
Contents
module Opal
def self.type_error(object, type, method = nil, coerced = nil)
if method && coerced
TypeError.new "can't convert #{object.class} into #{type} (#{object.class}##{method} gives #{coerced.class}"
else
TypeError.new "no implicit conversion of #{object.class} into #{type}"
end
end
def self.coerce_to(object, type, method)
return object if type === object
unless object.respond_to? method
raise type_error(object, type)
end
object.__send__ method
end
def self.coerce_to!(object, type, method)
coerced = coerce_to(object, type, method)
unless type === coerced
raise type_error(object, type, method, coerced)
end
coerced
end
def self.coerce_to?(object, type, method)
return unless object.respond_to? method
coerced = coerce_to(object, type, method)
return if coerced.nil?
unless type === coerced
raise type_error(object, type, method, coerced)
end
coerced
end
def self.try_convert(object, type, method)
return object if type === object
if object.respond_to? method
object.__send__ method
end
end
def self.compare(a, b)
compare = a <=> b
if `compare === nil`
raise ArgumentError, "comparison of #{a.class} with #{b.class} failed"
end
compare
end
def self.destructure(args)
%x{
if (args.length == 1) {
return args[0];
}
else if (args.$$is_array) {
return args;
}
else {
return $slice.call(args);
}
}
end
def self.respond_to?(obj, method)
%x{
if (obj == null || !obj.$$class) {
return false;
}
}
obj.respond_to? method
end
def self.inspect(obj)
%x{
if (obj === undefined) {
return "undefined";
}
else if (obj === null) {
return "null";
}
else if (!obj.$$class) {
return obj.toString();
}
else {
return #{obj.inspect};
}
}
end
end
Version data entries
14 entries across 14 versions & 2 rubygems