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require 'rbconfig'
def say(*msg)
puts(*msg) unless RakeFileUtils.verbose_flag == false
end
def sh!(*args, &block)
old_verbose = RakeFileUtils.verbose_flag
begin
RakeFileUtils.verbose_flag = nil if RakeFileUtils.verbose_flag == :default
sh(*args, &block)
ensure
RakeFileUtils.verbose_flag = old_verbose
end
end
def _(f, base = File.dirname(__FILE__))
File.expand_path(f, base)
end
dl_ext = RbConfig::CONFIG['DLEXT']
ext_dir = _("lib/parser/ext")
parser_e = _("fancy_parser.#{dl_ext}", ext_dir)
load_rb = _("boot/load.rb")
namespace :parser do
lexer_lex = _("lexer.lex", ext_dir)
lexer_c = _("lexer.c", ext_dir)
parser_y = _("parser.y", ext_dir)
parser_c = _("parser.c", ext_dir)
extconf = _("extconf.rb", ext_dir)
makefile = _("Makefile", ext_dir)
file lexer_c => file(lexer_lex) do
Dir.chdir(ext_dir) do
sh! 'flex', '--outfile', lexer_c, '--header-file=lexer.h', lexer_lex
end
end
file parser_c => file(parser_y) do
Dir.chdir(ext_dir) { sh! 'bison', '--output', parser_c, '-d', '-v', parser_y }
end
file makefile => file(extconf) do
Dir.chdir(ext_dir) { sh! 'rbx', extconf }
end
desc "Generate parser source from flex/bison"
task :generate => [parser_c, lexer_c, makefile]
file parser_e => file(makefile) do
sh! 'make', '-C', ext_dir
end
desc "Compile the parser extension"
task :compile => file(parser_e)
desc "Removed generated parser sources"
task :remove do
rm_f [_("parser.h", ext_dir), _("lexer.h", ext_dir)], :verbose => false
rm_f [makefile, parser_c, lexer_c], :verbose => false
end
desc "Clean compiled files."
task :clean do
rm_f Dir.glob(_("*.{o,so,rbc,log,output,bundle}", ext_dir)), :verbose => false
rm_rf [_("conftest.dSYM", ext_dir)], :verbose => true
end
end
namespace :compiler do
boot_parser_e = _("boot/compiler/parser/ext/"+File.basename(parser_e))
file boot_parser_e => file(parser_e) do
mkdir_p File.dirname(boot_parser_e), :verbose => false
cp parser_e, boot_parser_e, :verbose => false
end
task :clean do
rm_f boot_parser_e, :verbose => false
rm_rf _("boot/rbx-compiler/parser/conftest.dSYM")
rm_rf _("boot/compiler"), :verbose => false
end
desc "Compile fancy using the stable compiler (from boot/compiler)."
task :compile => file(boot_parser_e) do
say "Compiling fancy using stable compiler."
cmd = ['rbx -Xint', load_rb]
cmd << _("boot/compiler/boot.fyc")
cmd << _("boot/compiler/compiler.fyc")
cmd << _("boot/compiler/compiler/command.fyc")
cmd << _("boot/compiler/compile.fyc")
cmd << "--"
cmd << "--batch" if RakeFileUtils.verbose_flag == true
sources = Dir.glob("lib/**/*.fy")
system (cmd + sources).join(" ")
end
load("boot/rbx-compiler/parser/Rakefile")
desc "Compile fancy using boot/rbx-compiler into boot/compiler/"
task :rootstrap => "compiler:rbx_parser:ext" do
say "Compiling fancy into boot/compiler using ruby-based compiler from boot/rbx-compiler."
output = _("boot/compiler")
cmd = ['rbx -Xint']
cmd << _("boot/rbx-compiler/compiler.rb")
cmd << "--batch" if RakeFileUtils.verbose_flag == true
cmd << "--output-path" << output
src_path = ["--source-path", _("lib")]
sources = Dir.glob(_("lib/**/*.fy"))
system (cmd + src_path + sources).join(" ")
src_path = ["--source-path", _("boot")]
sources = Dir.glob(_("boot/*.fy"))
system (cmd + src_path + sources).join(" ")
sh! "rbx", _("boot/rbx-compiler/compiler.rb"), _("boot/compile.fy")
end
desc "Compile fancy using lib/ compiler into boot/compiler/"
task :wootstrap do
say "Compiling fancy into boot/compiler using development compiler from lib/"
output = _("boot/.wootstrap")
cmd = ['rbx -Xint', load_rb]
cmd << _("lib/boot.fyc")
cmd << _("lib/compiler.fyc")
cmd << _("lib/compiler/command.fyc")
cmd << _("boot/compiler/compile.fyc")
cmd << "--"
cmd << "--batch" if RakeFileUtils.verbose_flag == true
cmd << "--output-path" << output
sources = Dir.glob("lib/**/*.fy")
system (cmd + sources).join(" ")
mkdir_p _("parser/ext", output), :verbose => false
cp parser_e, _("parser/ext", output), :verbose => false
say "Using fresh built compiler as `stable compiler' in boot/compiler"
rm_rf _("boot/compiler")
mv _("boot/.wootstrap"), _("boot/compiler")
end
task :bootstrap => ["parser:generate", "rbx_parser:ext", file(boot_parser_e)] do
["compiler:rootstrap", "compiler:compile", "compiler:wootstrap"].each do |t|
task(t).reenable
task(t).execute
end
end
end
desc "Deletes all .rbc and .fyc files."
task :clean_compiled do
compiled = Dir.glob(_ "**/*.{rbc,fyc}")
rm_f compiled, :verbose => false
end
desc "Clean compiled files."
task :clean => ["parser:clean", "parser:remove", "compiler:clean", :clean_compiled]
def compile(source)
cmd = ['rbx', _("boot/load.rb")]
cmd << _("lib/boot.fyc")
cmd << _("lib/compiler.fyc")
cmd << _("lib/compiler/command.fyc")
cmd << _("boot/compile.fyc")
cmd << "--"
cmd << "--batch" if RakeFileUtils.verbose_flag == true
cmd << source.to_s
sh! *cmd
end
sources = Dir.glob(_("{lib,boot}/**/*.fy")).map { |f| file f }
compiled = sources.map { |s| file((s.to_s+"c") => [s, file(parser_e)]) { compile s } }
task :bootstrap_if_needed do
task(:bootstrap).invoke unless File.directory? _("boot/compiler")
end
task :compile => compiled
desc "Runs the test suite."
task :test do
sh! _('bin/fspec')
end
task :tests do
task(:test).invoke
end
task "tests/" do
task(:test).invoke
end
task :bootstrap => ["compiler:bootstrap"]
task :default => [:bootstrap_if_needed, :compile]
desc "Runs all example files in examples/ dir"
task :examples do
Dir.glob(_("examples/*.fy")).each do |f|
puts "Running #{f}"
puts
sh! _('bin/fancy'), f
puts
end
end
task "examples/" do
task(:examples).invoke
end
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