stdlib/opal-parser.rb
# helpers: call, raise
# backtick_javascript: true
# parser uses String#unpack
require 'corelib/string/unpack'
require 'opal/compiler'
require 'opal/erb'
require 'opal/version'
module Kernel
def eval(str, binding = nil, file = nil, line = nil)
str = ::Opal.coerce_to!(str, String, :to_str)
default_eval_options = { file: file || '(eval)', eval: true }
compiling_options = __OPAL_COMPILER_CONFIG__.merge(default_eval_options)
compiler = Opal::Compiler.new(str, compiling_options)
code = compiler.compile
code += compiler.source_map.to_data_uri_comment unless compiling_options[:no_source_map]
if binding
binding.js_eval(code)
else
%x{
return (function(self) {
return eval(#{code});
})(self)
}
end
end
def require_remote(url)
%x{
var r = new XMLHttpRequest();
r.open("GET", url, false);
r.send('');
}
eval `r.responseText`
end
end
%x{
var $has_own = Object.hasOwn || $call.bind(Object.prototype.hasOwnProperty);
Opal.compile = function(str, options) {
try {
str = #{::Opal.coerce_to!(`str`, String, :to_str)}
if (options) options = Opal.hash(options);
return Opal.Opal.$compile(str, options);
}
catch (e) {
if (e.$$class === Opal.Opal.SyntaxError) {
var err = Opal.SyntaxError.$new(e.message);
err.$set_backtrace(e.$backtrace());
throw(err);
}
else { throw e; }
}
};
Opal['eval'] = function(str, options) {
return eval(Opal.compile(str, options));
};
function run_ruby_scripts() {
var tag, tags = document.getElementsByTagName('script');
for (var i = 0, len = tags.length; i < len; i++) {
tag = tags[i];
if (tag.type === "text/ruby") {
if (tag.src) Opal.Kernel.$require_remote(tag.src);
if (tag.innerHTML) Opal.Kernel.$eval(tag.innerHTML);
}
}
}
if (typeof(document) !== 'undefined') {
if (window.addEventListener) {
window.addEventListener('DOMContentLoaded', run_ruby_scripts, false);
}
else {
window.attachEvent('onload', run_ruby_scripts);
}
}
}