How to export a map from a namespace?

[BVBAccelm]

Question

I have a set of data in key-value pairs that is constant, never changing. I need to access the values by using a variable that holds the key (it's dynamic). It is specific to a subset of code, and I'd like to put it in a namespace that relates to it. I figured that creating a Map was the best way to handle this type of data so I can access the values based off of the key (I've had other issues trying to access values on objects via dynamic keys in AssemblyScript otherwise I would use that). I figured exporting it from the namespace would provide me with what I've needed. I've exported functions from the same namespace without any issues. I am open to other options so if there's an AssemblyScript way to handle this please let me know.

The issue that I am having is that all of the code that I have tried exports an empty map, or doesn't compile. The only way to get it to work is to create a function that returns it, and export that function. I'd like to avoid doing this.

Here is some example code:

namespace TestNamespaceOne {
    export const map: Map<string, string> = new Map()
    map.set('key1', 'value1');
}

namespace TestNamespaceTwo {
    const testMap: Map<string, string> = new Map()
    testMap.set('key1', 'value1');
    export const map = testMap;
}

namespace TestNamespaceThree {
    const testMap: Map<string, string> = new Map()
    testMap.set('key1', 'value1');
    export function getTestMap(): Map<string, string>{
        return testMap;
    }
}

namespace TestNamespaceFour {
    export function getTestMap(): Map<string, string>{
        const testMap: Map<string, string> = new Map()
        testMap.set('key1', 'value1');
        return testMap;
    }
}

// namespace TestNamespaceOther {
//     function getMap(): Map<string, string>{
//         const testMap: Map<string, string> = new Map()
//         testMap.set('key1', 'value1');
//         return testMap;
//     }
//     export const map = getMap();
// }

class TestClass {
    constructor(){
        console.log('TestNamespaceOne: '+TestNamespaceOne.map.keys().join(","))
        console.log('TestNamespaceTwo: '+TestNamespaceTwo.map.keys().join(","))
        console.log('TestNamespaceThree: '+TestNamespaceThree.getTestMap().keys().join(","))
        console.log('TestNamespaceFour: '+TestNamespaceFour.getTestMap().keys().join(","))
    }
}

export function testFunction(): void{
    const testClass = new TestClass();
}

When in instantiate TestClass, the following shows up in the console:

TestNamespaceOne: 
TestNamespaceTwo: 
TestNamespaceThree: 
TestNamespaceFour: key1

As you can see, the first three solutions all return an empty map.

I also have TestNamespaceOther in the code that doesn't even compile. When left uncommented, and I try to compile it, I get the following result:

ERROR TS2304: Cannot find name 'getMap'.
      :
 4900 │ export const map = getMap();
      │                    ~~~~~~
      └─ in assembly/index.ts(4900,24)

FAILURE 1 compile error(s)

Somehow it cannot find the function declared immediately before it. I've tried other variations on this with no desired results as well.

The version of AssemblyScript that I am using is 0.25.2.

Any ideas how I can accomplish this? I am not sure if it's a bug or if this is an intended consequence of the way AssemblyScript works. As I've said, I'm open to other options, but being unable to use dynamic properties on objects I figured a map would be the way to go - but if there's a better way to model and access the data then I would gladly use that. just let me know.

[CountBleck]

Does updating to the latest version have any effect?

[HerrCai0907]

TestNamespaceOther is definitely bug. I will take a look.

If you want to initialize a map, elegant solution is creating a class to wrapper map and do something in constructor.

[BVBAccelm]

@CountBleck I updated to 0.27.13 and all of the things that I explained above executed the same.