20240517

node_modules/store/plugins/operations.js

@@ -0,0 +1,58 @@
+var util = require('../src/util')
+var slice = util.slice
+var assign = util.assign
+
+var updatePlugin = require('./update')
+
+module.exports = [updatePlugin, operationsPlugin]
+
+function operationsPlugin() {
+	return {
+		// array
+		push: push,
+		pop: pop,
+		shift: shift,
+		unshift: unshift,
+
+		// obj
+		assign: assign_,
+	}
+
+	// array
+	function push(_, key, val1, val2, val3, etc) {
+		return _arrayOp.call(this, 'push', arguments)
+	}
+	function pop(_, key) {
+		return _arrayOp.call(this, 'pop', arguments)
+	}
+	function shift(_, key) {
+		return _arrayOp.call(this, 'shift', arguments)
+	}
+	function unshift(_, key, val1, val2, val3, etc) {
+		return _arrayOp.call(this, 'unshift', arguments)
+	}
+
+	// obj
+	function assign_(_, key, props1, props2, props3, etc) {
+		var varArgs = slice(arguments, 2)
+		return this.update(key, {}, function(val) {
+			if (typeof val != 'object') {
+				throw new Error('store.assign called for non-object value with key "'+key+'"')
+			}
+			varArgs.unshift(val)
+			return assign.apply(Object, varArgs)
+		})
+	}
+
+	// internal
+	///////////
+	function _arrayOp(arrayFn, opArgs) {
+		var res
+		var key = opArgs[1]
+		var rest = slice(opArgs, 2)
+		this.update(key, [], function(arrVal) {
+			res = Array.prototype[arrayFn].apply(arrVal, rest)
+		})
+		return res
+	}
+}