Start emitting a YAML map with anchor, tag, an implicit start and end, and style.
This method is called when some event handler is undefined. event is :on_XXX, token is the scanned token, and data is a data accumulator.
The return value of this method is passed to the next event handler (as of Enumerable#inject).
Returns new ancillary data for IP_PKTINFO.
If spec_dst is not given, addr is used.
IP_PKTINFO is not standard.
Supported platform: GNU/Linux
addr = Addrinfo.ip("127.0.0.1") ifindex = 0 spec_dst = Addrinfo.ip("127.0.0.1") p Socket::AncillaryData.ip_pktinfo(addr, ifindex, spec_dst) #=> #<Socket::AncillaryData: INET IP PKTINFO 127.0.0.1 ifindex:0 spec_dst:127.0.0.1>
Extracts addr, ifindex and spec_dst from IP_PKTINFO ancillary data.
IP_PKTINFO is not standard.
Supported platform: GNU/Linux
addr = Addrinfo.ip("127.0.0.1") ifindex = 0 spec_dest = Addrinfo.ip("127.0.0.1") ancdata = Socket::AncillaryData.ip_pktinfo(addr, ifindex, spec_dest) p ancdata.ip_pktinfo #=> [#<Addrinfo: 127.0.0.1>, 0, #<Addrinfo: 127.0.0.1>]
Returns new ancillary data for IPV6_PKTINFO.
IPV6_PKTINFO is defined by RFC 3542.
addr = Addrinfo.ip("::1") ifindex = 0 p Socket::AncillaryData.ipv6_pktinfo(addr, ifindex) #=> #<Socket::AncillaryData: INET6 IPV6 PKTINFO ::1 ifindex:0>
Extracts addr and ifindex from IPV6_PKTINFO ancillary data.
IPV6_PKTINFO is defined by RFC 3542.
addr = Addrinfo.ip("::1") ifindex = 0 ancdata = Socket::AncillaryData.ipv6_pktinfo(addr, ifindex) p ancdata.ipv6_pktinfo #=> [#<Addrinfo: ::1>, 0]
Read a REG_SZ or REG_EXPAND_SZ registry value named name.
If the value type is REG_EXPAND_SZ, environment variables are replaced. Unless the value type is REG_SZ or REG_EXPAND_SZ, TypeError is raised.
Same as IO.
See Zlib::GzipReader documentation for a description.
See Zlib::GzipReader documentation for a description.
Iterates over keys and objects in a weakly referenced object
Write to a buffer a value of type at offset. type should be one of symbols described in get_value.
buffer = IO::Buffer.new(8) # => # #<IO::Buffer 0x0000555f5c9a2d50+8 INTERNAL> # 0x00000000 00 00 00 00 00 00 00 00 buffer.set_value(:U8, 1, 111) # => 1 buffer # => # #<IO::Buffer 0x0000555f5c9a2d50+8 INTERNAL> # 0x00000000 00 6f 00 00 00 00 00 00 .o......
Note that if the type is integer and value is Float, the implicit truncation is performed:
buffer = IO::Buffer.new(8) buffer.set_value(:U32, 0, 2.5) buffer # => # #<IO::Buffer 0x0000555f5c9a2d50+8 INTERNAL> # 0x00000000 00 00 00 02 00 00 00 00 # ^^ the same as if we'd pass just integer 2
Returns serialized iseq binary format data as a String object. A corresponding iseq object is created by RubyVM::InstructionSequence.load_from_binary() method.
String extra_data will be saved with binary data. You can access this data with RubyVM::InstructionSequence.load_from_binary_extra_data(binary).
Note that the translated binary data is not portable. You can not move this binary data to another machine. You can not use the binary data which is created by another version/another architecture of Ruby.
Returns the absolute path of this instruction sequence.
nil if the iseq was evaluated from a string.
For example, using ::compile_file:
# /tmp/method.rb
def hello
puts "hello, world"
end
# in irb
> iseq = RubyVM::InstructionSequence.compile_file('/tmp/method.rb')
> iseq.absolute_path #=> /tmp/method.rb
Returns the base label of this instruction sequence.
For example, using irb:
iseq = RubyVM::InstructionSequence.compile('num = 1 + 2') #=> <RubyVM::InstructionSequence:<compiled>@<compiled>> iseq.base_label #=> "<compiled>"
Using ::compile_file:
# /tmp/method.rb
def hello
puts "hello, world"
end
# in irb
> iseq = RubyVM::InstructionSequence.compile_file('/tmp/method.rb')
> iseq.base_label #=> <main>
Returns the number of the first source line where the instruction sequence was loaded from.
For example, using irb:
iseq = RubyVM::InstructionSequence.compile('num = 1 + 2') #=> <RubyVM::InstructionSequence:<compiled>@<compiled>> iseq.first_lineno #=> 1
It returns recorded script lines if it is availalble. The script lines are not limited to the iseq range, but are entire lines of the source file.
Note that this is an API for ruby internal use, debugging, and research. Do not use this for any other purpose. The compatibility is not guaranteed.
Returns true if this is a header row, false otherwise.