Module: Opal

Extended by:
UseGem
Defined in:
opal/lib/opal.rb,
opal/lib/opal/cli.rb,
opal/lib/opal/erb.rb,
opal/lib/opal/util.rb,
opal/lib/tilt/opal.rb,
opal/lib/opal/paths.rb,
opal/lib/opal/config.rb,
opal/lib/opal/errors.rb,
opal/lib/opal/parser.rb,
opal/lib/opal/builder.rb,
opal/lib/opal/version.rb,
opal/lib/opal/compiler.rb,
opal/lib/opal/fragment.rb,
opal/lib/opal/nodes/if.rb,
opal/lib/opal/nodes/def.rb,
opal/lib/opal/nodes/for.rb,
opal/lib/opal/nodes/top.rb,
opal/lib/opal/sprockets.rb,
opal/lib/opal/nodes/base.rb,
opal/lib/opal/nodes/call.rb,
opal/lib/opal/nodes/case.rb,
opal/lib/opal/nodes/hash.rb,
opal/lib/opal/nodes/iter.rb,
opal/lib/opal/source_map.rb,
opal/lib/opal/cli_options.rb,
opal/lib/opal/cli_runners.rb,
opal/lib/opal/nodes/array.rb,
opal/lib/opal/nodes/class.rb,
opal/lib/opal/nodes/logic.rb,
opal/lib/opal/nodes/masgn.rb,
opal/lib/opal/nodes/scope.rb,
opal/lib/opal/nodes/super.rb,
opal/lib/opal/nodes/while.rb,
opal/lib/opal/nodes/yield.rb,
opal/lib/opal/parser/sexp.rb,
opal/lib/opal/path_reader.rb,
opal/lib/opal/nodes/module.rb,
opal/lib/opal/nodes/rescue.rb,
opal/lib/opal/parser/lexer.rb,
opal/lib/opal/nodes/arglist.rb,
opal/lib/opal/nodes/defined.rb,
opal/lib/opal/nodes/helpers.rb,
opal/lib/opal/nodes/literal.rb,
opal/lib/opal/sprockets/erb.rb,
opal/lib/opal/parser/grammar.rb,
opal/lib/opal/regexp_anchors.rb,
opal/lib/opal/nodes/constants.rb,
opal/lib/opal/nodes/variables.rb,
opal/lib/opal/parser/keywords.rb,
opal/lib/opal/hike_path_finder.rb,
opal/lib/opal/nodes/args/kwarg.rb,
opal/lib/opal/sprockets/server.rb,
opal/lib/opal/nodes/args/optarg.rb,
opal/lib/opal/nodes/definitions.rb,
opal/lib/opal/nodes/inline_args.rb,
opal/lib/opal/builder_processors.rb,
opal/lib/opal/cli_runners/nodejs.rb,
opal/lib/opal/cli_runners/server.rb,
opal/lib/opal/nodes/args/mlhsarg.rb,
opal/lib/opal/nodes/args/normarg.rb,
opal/lib/opal/nodes/args/restarg.rb,
opal/lib/opal/nodes/call_special.rb,
opal/lib/opal/cli_runners/nashorn.rb,
opal/lib/opal/nodes/args/kwoptarg.rb,
opal/lib/opal/parser/parser_scope.rb,
opal/lib/opal/sprockets/processor.rb,
opal/lib/opal/nodes/args/kwrestarg.rb,
opal/lib/opal/nodes/args/post_args.rb,
opal/lib/opal/nodes/node_with_args.rb,
opal/lib/opal/cli_runners/phantomjs.rb,
opal/lib/opal/nodes/runtime_helpers.rb,
opal/lib/opal/nodes/singleton_class.rb,
opal/lib/opal/sprockets/environment.rb,
opal/lib/opal/sprockets/path_reader.rb,
opal/lib/opal/nodes/args/post_kwargs.rb,
opal/lib/opal/cli_runners/applescript.rb,
opal/lib/opal/sprockets/source_map_server.rb,
opal/lib/opal/nodes/args/initialize_kwargs.rb,
opal/lib/opal/sprockets/source_map_header_patch.rb

Overview

Opal is a ruby to javascript compiler, with a runtime for running in any JavaScript environment.

Defined Under Namespace

Modules: BuilderProcessors, CliRunners, Config, ERB, Keywords, Nodes, Sprockets, UseGem, Util Classes: Builder, CLI, CLIOptions, Compiler, Environment, Fragment, GemNotFound, HikePathFinder, Lexer, Parser, ParserScope, PathReader, Processor, Server, Sexp, SourceMap, SourceMapServer, TiltTemplate

Constant Summary

VERSION =

WHEN RELEASING: Remember to update RUBY_ENGINE_VERSION in opal/corelib/constants.rb too!

'0.10.3'
REGEXP_START =
RUBY_ENGINE == 'opal' ? '^' : '\A'.freeze
REGEXP_END =
RUBY_ENGINE == 'opal' ? '$' : '\z'.freeze
FORBIDDEN_STARTING_IDENTIFIER_CHARS =

Unicode characters in ranges \u0001 - \u002F (blank unicode characters + space + !"#$%&'()*+,-./ chars) \u003A - \u0040 (:;<=>[email protected] chars) \u005B - \u005E ([]^ chars) \u0060 (` char) \u007B - \u007F ({|}~ chars}) are not allowed to be used in identifier in the beggining or middle of its name

"\\u0001-\\u002F\\u003A-\\u0040\\u005B-\\u005E\\u0060\\u007B-\\u007F"
FORBIDDEN_ENDING_IDENTIFIER_CHARS =

Unicode characters in ranges \u0001 - \u0020 (blank unicode characters + space) \u0022 - \u002F ("#$%&'()*+,-./ chars) \u003A - \u003E (:;<=> chars) \u0040 (@ char) \u005B - \u005E ([]^ chars) \u0060 (` char) \u007B - \u007F ({|}~ chars}) are not allowed to be used in identifier in the end of its name In fact, FORBIDDEN_STARTING_IDENTIFIER_CHARS = FORBIDDEN_ENDING_IDENTIFIER_CHARS + \u0021 ('?') + \u003F ('!')

"\\u0001-\\u0020\\u0022-\\u002F\\u003A-\\u003E\\u0040\\u005B-\\u005E\\u0060\\u007B-\\u007F"
INLINE_IDENTIFIER_REGEXP =
Regexp.new("[^#{FORBIDDEN_STARTING_IDENTIFIER_CHARS}]*[^#{FORBIDDEN_ENDING_IDENTIFIER_CHARS}]")
FORBIDDEN_CONST_NAME_CHARS =

For constants rules are pretty much the same, but ':' is allowed and '?!' are not. Plus it may start with a '::' which indicates that the constant comes from toplevel.

"\\u0001-\\u0020\\u0021-\\u002F\\u003B-\\u003F\\u0040\\u005B-\\u005E\\u0060\\u007B-\\u007F"
CONST_NAME_REGEXP =
Regexp.new("#{REGEXP_START}(::)?[A-Z][^#{FORBIDDEN_CONST_NAME_CHARS}]*#{REGEXP_END}")

Class Method Summary collapse

Methods included from UseGem

use_gem

Class Method Details

.append_path(path) ⇒ Object

Add a file path to opals load path. Any gem containing ruby code that Opal has access to should add a load path through this method. Load paths added here should only be paths which contain code targeted at being compiled by Opal.


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# File 'opal/lib/opal/paths.rb', line 18

def self.append_path(path)
  append_paths(path)
end

.append_paths(*paths) ⇒ Object

Same as #append_path but can take multiple paths.


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# File 'opal/lib/opal/paths.rb', line 23

def self.append_paths(*paths)
  @paths.concat(paths)
  nil
end

.compile(source, options = {}) ⇒ String

Compile a string of ruby code into javascript.

Examples:


Opal.compile "ruby_code"
# => "string of javascript code"

Parameters:

  • source (String)

    ruby source

  • options (Hash) (defaults to: {})

    compiler options

Returns:

  • (String)

    javascript code

See Also:

  • for compiler options

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# File 'opal/lib/opal/compiler.rb', line 20

def self.compile(source, options = {})
  Compiler.new(source, options).compile
end

.core_dirObject


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# File 'opal/lib/opal/paths.rb', line 6

def self.core_dir
  File.expand_path('../../../opal', __FILE__.untaint)
end

.gem_dirObject


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# File 'opal/lib/opal/paths.rb', line 2

def self.gem_dir
  File.expand_path('../..', __FILE__.untaint)
end

.pathsObject


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# File 'opal/lib/opal/paths.rb', line 65

def self.paths
  @paths.dup.freeze
end

.reset_paths!Object

Resets Opal.paths to the default value (includes corelib, stdlib, opal/lib)


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# File 'opal/lib/opal/paths.rb', line 70

def self.reset_paths!
  @paths = [core_dir.untaint, std_dir.untaint, gem_dir.untaint]
  nil
end

.std_dirObject


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# File 'opal/lib/opal/paths.rb', line 10

def self.std_dir
  File.expand_path('../../../stdlib', __FILE__.untaint)
end