frsyuki

-- ref: https://www.clear-code.com/blog/2020/12/22.html

create type fts_bigram_token as (token text, position bigint);

create or replace function fts_bigram_tokenize(value text)
returns setof fts_bigram_token as $$
  select trim(coalesce(lag(c) over (), '') || c), row_number() over ()
  from (
    select unnest(
      regexp_matches(regexp_replace(value, '[[:punct:]]', ' ', 'g') || ' ', '(?!\s\s).', 'g')

frsyuki

import java.io.File;
import java.io.IOException;
import org.graalvm.polyglot.Context;
import org.graalvm.polyglot.Source;
import org.graalvm.polyglot.Value;

public class GraalPolyglot {
    public static void main(String[] args) throws IOException {
        Source source = Source.newBuilder("ruby", new File(args[0])).build();

frsyuki

import java.io.File;
import java.io.IOException;
import org.graalvm.polyglot.Context;
import org.graalvm.polyglot.Source;
import org.graalvm.polyglot.Value;

public class GraalPolyglot {
    public static void main(String[] args) throws IOException {
        Source source = Source.newBuilder("ruby", new File(args[0])).build();

frsyuki

import org.graalvm.polyglot.Context;
import org.graalvm.polyglot.Value;

public class GraalPolyglot {
    public static void main(String[] args) {
        try (Context context = Context.newBuilder().allowAllAccess(true).build()) {
            Value v = context.eval("ruby", "'Ruby String'");
            context.getBindings("js").putMember("v", v);
            context.eval("js", "print('v=' + v)");  //=> v=Ruby String
        }

frsyuki

./configure \
  $(ruby -e "puts RbConfig::CONFIG['configure_args']") \
  CFLAGS=$(ruby -e "puts RbConfig::CONFIG['CFLAGS'] + ' -flto'") \
  LDFLAGS=$(ruby -e "puts RbConfig::CONFIG['LDFLAGS'] + ' -flto'") \
  --enable-shared \
  --prefix=$(pwd)/install

frsyuki

require 'benchmark'
Benchmark.bmbm do |x|
  x.report("Array.push") do
    arrays = []
    1000.times do |i|
      arrays[i] = []
      (0...500000).each do |j|
        arrays[i] = j
      end

frsyuki

No optimization:

        user     system      total        real
0.1kb   1.204809   0.005060   1.209869 (  1.210884)
1kb     1.309668   0.004896   1.314564 (  1.315971)
10kb    2.674302   0.077470   2.751772 (  2.755213)
100kb  29.982771  22.375113  52.357884 ( 52.386822)
500kb 122.625423  82.284026 204.909449 (205.018250)
600kb 1.006700 0.003676 1.010376 ( 1.010782)

frsyuki

require 'benchmark'
require 'json'
require 'yajl'
require 'msgpack'

here = File.dirname(File.expand_path(__FILE__))

# https://catalog.data.gov/dataset/consumer-complaint-database
VIEWS_OBJ = JSON.load(File.read("#{here}/views.json"))
VIEWS_MSGPACK = MessagePack.pack(VIEWS_OBJ)

frsyuki

public class Multistage<P>
{
    public static class State<T>
    {
        private Object nextLambdaArgument;
        private boolean isNext;

        private State(Object nextLambdaArgument, boolean isNext)
        {

frsyuki

source 'https://rubygems.org/'

gemspec