Script to create a text layer

TextLayer(app.activeDocument.activeLayer.name);
function TextLayer(text) {
        var layers = app.activeDocument.artLayers;
        var layer = layers.add();
        layer.kind = LayerKind.TEXT;
        var textItem = layer.textItem;
        textItem.kind = TextType.PARAGRAPHTEXT;
        textItem.size = 30;
        textItem.position = [10, 10];
        textItem.contents = text;
        textItem.width = new UnitValue("300 pixels");
        textItem.height = new UnitValue("30 pixels");
}

My hack:

#target photoshop
// Current layer name as text layer
var myDoc = app.activeDocument;
var myRulers = app.preferences.rulerUnits
app.preferences.rulerUnits = Units.PIXELS;
var myLayerName = myDoc.activeLayer.name;
var myLayerText = myDoc.artLayers.add()
myLayerText.kind = LayerKind.TEXT
var myText = myLayerText.textItem
myColor = new SolidColor
myColor.rgb.red = 255
myColor.rgb.green = 0
myColor.rgb.blue = 0
myLayerText.textItem.color = myColor
myText.position = [0,20] // Upper Left
myText.justification = Justification.LEFT
myText.size = 12
myText.contents = myLayerName
myLayerText.name = myLayerName // Or add a fixed string in quotes i.e. 'My Great Layer Name!'
app.preferences.rulerUnits = myRulers

#target photoshop-130.064

if (app.documents.length > 0) {

var myDocument = app.activeDocument;

var originalUnits = app.preferences.rulerUnits;

app.preferences.rulerUnits = Units.PIXELS;

// getting the name;

var docName = myDocument.name;

var theLayerName = myDocument.activeLayer.name;

// make the layer;

var myLayerRef = myDocument.artLayers.add();

myLayerRef.kind = LayerKind.TEXT;

myLayerRef.name = theLayerName;

var myTextRef = myLayerRef.textItem;

myTextRef.size = 14;

myTextRef.font = "Courier";

myTextRef.justification = Justification.RIGHT;

//Set text colour in RGB values

var newColor = new SolidColor();

newColor.rgb.red = 0;

newColor.rgb.green = 0;

newColor.rgb.blue = 0;

myTextRef.color = newColor;

// Set the position of the text - percentages from left first, then from top.

myTextRef.position = new Array( myDocument.width - 85, myDocument.height - 85);

myLayerRef.blendMode = BlendMode.NORMAL;

myLayerRef.opacity = 100;

myTextRef.contents = theLayerName;

app.preferences.rulerUnits = originalUnits;

};

//that’s it; thanks to xbytors;