Input not showing

[viggnah]

Description

See video below (shows another issue of not being able to delete expression for which I'll create another issue):

BI.mov

Steps to Reproduce

Download sample JSON to XML converter, then try to print payload but it doesn't show up.

Version

BI VS Code Extension 1.6.0, Ballerina 2201.13.1

Environment Details (with versions)

No response

[senithkay]

Cause of the issue is that LS is throwing an exception as follows

[Trace - 13:43:12] Sending request 'expressionEditor/completion - (546)'.
Params: {
    "filePath": "/Users/senith/Desktop/justignore/bi-pro/examples/ex1/functions.bal",
    "context": {
        "expression": "",
        "startLine": {
            "line": 10,
            "offset": 4
        },
        "lineOffset": 0,
        "offset": 0,
        "codedata": {
            "node": "FUNCTION_CALL",
            "org": "ballerina",
            "module": "io",
            "packageName": "io",
            "symbol": "println",
            "version": "1.8.0",
            "lineRange": {
                "fileName": "functions.bal",
                "startLine": {
                    "line": 10,
                    "offset": 4
                },
                "endLine": {
                    "line": 10,
                    "offset": 27
                }
            },
            "sourceCode": "io:println(flag, flag);"
        },
        "property": {
            "metadata": {
                "label": "Values",
                "description": "The value(s) to be printed"
            },
            "value": [
                "flag",
                "flag"
            ],
            "optional": false,
            "editable": true,
            "advanced": false,
            "placeholder": "()",
            "types": [
                {
                    "fieldType": "EXPRESSION_SET",
                    "selected": false
                }
            ],
            "codedata": {
                "kind": "REST_PARAMETER",
                "originalName": "values"
            },
            "diagnostics": {
                "hasDiagnostics": false,
                "diagnostics": []
            }
        }
    },
    "completionContext": {
        "triggerKind": 1
    }
}


[Trace - 13:43:12] Received response 'expressionEditor/completion - (546)' in 157ms. Request failed: Internal error. (-32603).
Error data: "java.util.concurrent.CompletionException: java.lang.IllegalStateException: Array must have size 1, but has size 2\n\tat java.base/java.util.concurrent.CompletableFuture.encodeRelay(CompletableFuture.java:368)\n\tat java.base/java.util.concurrent.CompletableFuture.completeRelay(CompletableFuture.java:377)\n\tat java.base/java.util.concurrent.CompletableFuture$UniRelay.tryFire(CompletableFuture.java:1097)\n\tat java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510)\n\tat java.base/java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:2194)\n\tat io.ballerina.flowmodelgenerator.core.expressioneditor.Debouncer.lambda$debounce$0(Debouncer.java:69)\n\tat java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)\n\tat java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)\n\tat java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)\n\tat java.base/java.lang.Thread.run(Thread.java:1583)\nCaused by: java.lang.IllegalStateException: Array must have size 1, but has size 2\n\tat com.google.gson.JsonArray.getAsSingleElement(JsonArray.java:236)\n\tat com.google.gson.JsonArray.getAsString(JsonArray.java:262)\n\tat io.ballerina.flowmodelgenerator.core.expressioneditor.ExpressionEditorContext$Property.initialize(ExpressionEditorContext.java:382)\n\tat io.ballerina.flowmodelgenerator.core.expressioneditor.ExpressionEditorContext$Property.propertyType(ExpressionEditorContext.java:437)\n\tat io.ballerina.flowmodelgenerator.core.expressioneditor.services.CompletionRequest.getResponse(CompletionRequest.java:66)\n\tat io.ballerina.flowmodelgenerator.core.expressioneditor.services.CompletionRequest.getResponse(CompletionRequest.java:50)\n\tat io.ballerina.flowmodelgenerator.core.expressioneditor.services.DebouncedExpressionEditorRequest.call(DebouncedExpressionEditorRequest.java:76)\n\tat io.ballerina.flowmodelgenerator.core.expressioneditor.Debouncer.lambda$debounce$0(Debouncer.java:66)\n\t... 6 more\n"

[pasindufernando1]

Moving back to in-progress as a refactoring is made to address ballerina-platform/ballerina-language-server#658 (review), which will solve this issue as well

[pasindufernando1]

Moving to onhold due to the need of further discussions

[pasindufernando1]

The root cause for this issue is the the expression editor back end not accepting array lists as property values. As discussed with @LakshanWeerasinghe @kanushka @senithkay it was decided to improve the model for lists and maps. Hence assigning @LakshanWeerasinghe to continue the effort