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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <p style="margin: 10px 0 0 0; margin-top: 0">or the record, this is the magicke which allows graal to pretend to be a <tt>javax.script.ScriptEngine</tt> such as we used it</p>
<div class="code panel" style="border-width: 1px;; border: 1px solid #cccccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #cccccc; -moz-border-radius: 3px 3px 3px 3px; border-radius: 3px 3px 3px 3px; margin: 9px 0">
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<pre class="code-java" style="margin: 10px 0 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">Object</span> eval(<span class="code-keyword" style="color: #000091">final</span> <span class="code-object" style="color: #910091">String</span> script, <span class="code-keyword" style="color: #000091">final</span> ScriptContext context) <span class="code-keyword" style="color: #000091">throws</span> ScriptException {
<span class="code-keyword" style="color: #000091">final</span> Bindings globals = context.getBindings(ScriptContext.GLOBAL_SCOPE);
<span class="code-keyword" style="color: #000091">if</span> (globals != <span class="code-keyword" style="color: #000091">null</span> && !globals.isEmpty()) {
<span class="code-keyword" style="color: #000091">throw</span> <span class="code-keyword" style="color: #000091">new</span> ScriptException(<span class="code-quote" style="color: #009100">"Non empty GLOBAL_SCOPE"</span>);
}
<span class="code-keyword" style="color: #000091">return</span> eval(script, context.getBindings(ScriptContext.ENGINE_SCOPE));
}
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">Object</span> eval(<span class="code-keyword" style="color: #000091">final</span> <span class="code-object" style="color: #910091">String</span> script, <span class="code-keyword" style="color: #000091">final</span> Bindings binding) <span class="code-keyword" style="color: #000091">throws</span> ScriptException {
<span class="code-keyword" style="color: #000091">try</span> (<span class="code-keyword" style="color: #000091">final</span> Context context = Context.newBuilder().allowExperimentalOptions(<span class="code-keyword" style="color: #000091">true</span>).
option(<span class="code-quote" style="color: #009100">"js.nashorn-compat"</span>, <span class="code-quote" style="color: #009100">"<span class="code-keyword" style="color: #000091; color: #009100">true</span>"</span>).
allowAllAccess(<span class="code-keyword" style="color: #000091">true</span>).
build()) {
<span class="code-keyword" style="color: #000091">final</span> Value bindings = context.getBindings(<span class="code-quote" style="color: #009100">"js"</span>);
<span class="code-keyword" style="color: #000091">for</span> (<span class="code-keyword" style="color: #000091">final</span> <span class="code-object" style="color: #910091">String</span> name: binding.keySet()) {
bindings.putMember(name, binding.get(name));
}
<span class="code-keyword" style="color: #000091">final</span> Value v = context.eval(<span class="code-quote" style="color: #009100">"js"</span>, script);
<span class="code-keyword" style="color: #000091">if</span> (v.isHostObject()) {
<span class="code-keyword" style="color: #000091">return</span> v.asHostObject();
} <span class="code-keyword" style="color: #000091">else</span> <span class="code-keyword" style="color: #000091">if</span> (v.isProxyObject()) {
<span class="code-keyword" style="color: #000091">return</span> v.asProxyObject();
}
<span class="code-keyword" style="color: #000091">return</span> v.as(<span class="code-object" style="color: #910091">Object</span>.class);
} <span class="code-keyword" style="color: #000091">catch</span> (<span class="code-keyword" style="color: #000091">final</span> RuntimeException e) {
<span class="code-keyword" style="color: #000091">throw</span> <span class="code-keyword" style="color: #000091">new</span> ScriptException(e);
}
}</pre>
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</div> <p style="margin: 10px 0 0 0">And just stubb out everything else.</p> <p style="margin: 10px 0 0 0">I'm now looking at bundling this up as a JSR223 provider. At that stage we will need to decide what our story is.</p> </td>
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