mirror of https://github.com/boa-dev/boa.git
Iban Eguia
4 years ago
committed by
GitHub
5 changed files with 97 additions and 21 deletions
@ -0,0 +1,72 @@
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use boa::{ |
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exec::Executable, |
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object::{GcObject, ObjectInitializer}, |
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property::Attribute, |
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Context, Result, Value, |
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}; |
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/// Initializes the object in the context.
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pub(super) fn init(context: &mut Context) -> GcObject { |
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let global_obj = context.global_object(); |
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let obj = ObjectInitializer::new(context) |
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.function(create_realm, "createRealm", 0) |
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.function(eval_script, "evalScript", 1) |
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.property("global", global_obj, Attribute::default()) |
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// .property("agent", agent, Attribute::default())
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.build(); |
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context.register_global_property("$262", obj.clone(), Attribute::default()); |
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obj |
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} |
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/// The `$262.createRealm()` function.
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///
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/// Creates a new ECMAScript Realm, defines this API on the new realm's global object, and
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/// returns the `$262` property of the new realm's global object.
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fn create_realm(_this: &Value, _: &[Value], _context: &mut Context) -> Result<Value> { |
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// eprintln!("called $262.createRealm()");
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let mut context = Context::new(); |
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// add the $262 object.
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let js_262 = init(&mut context); |
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Ok(Value::from(js_262)) |
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} |
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/// The `$262.detachArrayBuffer()` function.
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///
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/// Implements the `DetachArrayBuffer` abstract operation.
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#[allow(dead_code)] |
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fn detach_array_buffer(_this: &Value, _: &[Value], _context: &mut Context) -> Result<Value> { |
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todo!() |
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} |
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/// The `$262.evalScript()` function.
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///
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/// Accepts a string value as its first argument and executes it as an ECMAScript script.
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fn eval_script(_this: &Value, args: &[Value], context: &mut Context) -> Result<Value> { |
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// eprintln!("called $262.evalScript()");
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if let Some(source_text) = args.get(0).and_then(|val| val.as_string()) { |
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match boa::parse(source_text.as_str(), false) { |
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// TODO: check strict
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Err(e) => context.throw_type_error(format!("Uncaught Syntax Error: {}", e)), |
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Ok(script) => script.run(context), |
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} |
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} else { |
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Ok(Value::undefined()) |
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} |
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} |
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/// The `$262.gc()` function.
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///
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/// Wraps the host's garbage collection invocation mechanism, if such a capability exists.
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/// Must throw an exception if no capability exists. This is necessary for testing the
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/// semantics of any feature that relies on garbage collection, e.g. the `WeakRef` API.
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#[allow(dead_code)] |
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fn gc(_this: &Value, _: &[Value], _context: &mut Context) -> Result<Value> { |
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todo!() |
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} |
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