swim.structure polyglot language bindings

[c9r]

Flesh out polyglot language bindings for the swim-structure Java library. The bindings are located in the swim-dynamic-structure Java library. The JavaScript bindings should be compatible with the @swim/structure TypeScript library. Make sure to bind static methods, in addition to instance methods.

Structure bindings

• [ ] Add Item bindings.
• [ ] Add Field bindings.
• [ ] Add Attr bindings.
• [ ] Add Slot bindings.
• [ ] Add Value bindings
• [ ] Add Record bindings
• [ ] Add Data bindings.
• [ ] Add Text bindings.
• [ ] Add Num bindings.
• [ ] Add Bool bindings.
• [ ] Add Extant bindings.
• [ ] Add Absent bindings.

Expression bindings

• [ ] Add Expression bindings.
• [ ] Add Operator bindings.
• [ ] Add Selector bindings.
• [ ] Add Func bindings.
• [ ] Add Interpreter bindings.

Form bindings

• [ ] Add Form bindings.

[ajay-gov]

Item 1 is a Slot. This should work I think but maybe this is not what you want to do? assertEquals(context.eval("js", "record.getItem(1).stringValue().asString()"), "number"); assertEquals(context.eval("js", "record.getItem(1).key.numberValue()").asInt(), 78);

[freyadyu]

Hey Chris,

I committed my code with HostItem.java and ItemTypeSpec.java. I converted all methods in Item.java with corresponding functionalities in Item.ts, but I listed some left over questions I had while developing, we can sync when you in the office. At the meantime, I'll keep working on the rest of the list:

• [ ] In Item.ts, there're only stringValue(), numberValue(), and booleanValue(). But in Item.java, besides those three methods, there're byteValue(), shortValue(), intValue(), longValue(), floatValue(), doubleValue(), integerValue(), charValue(). I added those in HostItem.java, but not sure whether I should keep them there cause there's no corresponding method in Item.ts.

• [ ] If we want to keep those method in HostItem, I also met a problem while writing test case with integerValue(), need your instruction.

• [ ] Met problem with writing HostLambda test case

• [ ] For HostItemFilter, HostItemEvaluate, HostItemSubstitute, they involved with Selector and Interpreter bindings, need your instruction

• [ ] For HostItemCast, HostItemCoerce, HostItemDisplay, HostItemDebug, HostItemGlobalScope need your instruction for test case

• [ ] For HostItemFromObject test case, I met question with test case that fromObject() takes map as parameter with following error exception: Map<String, String> map = new HashMap<>(); map.put("foo", "bar"); bindings.putMember("mapOb", bridge.hostToGuest(Item.fromObject(map))); assertEquals(bridge.guestToHost(context.eval("js", "mapOb")), Slot.of("foo", "bar"));

  error: swim.dynamic.structure.ItemTypeSpec > testFromObject FAILED java.lang.IllegalArgumentException: {foo=bar} at swim.structure/swim.structure.Value.fromObject(Value.java:1049) at swim.structure/swim.structure.Item.fromObject(Item.java:943) at swim.dynamic.structure/
  swim.dynamic.structure.ItemTypeSpec.testFromObject(ItemTypeSpec.java:87)

• [ ] assertEqual case failed for HostItemToString