feat(Code Node): create Code node (#3965)

* Introduce node deprecation (#3930)

✨ Introduce node deprecation

* 🚧 Scaffold out Code node

* 👕 Fix lint

* 📘 Create types file

* 🚚 Rename theme

* 🔥 Remove unneeded prop

* ⚡ Override keybindings

* ⚡ Expand lintings

* ⚡ Create editor content getter

* 🚚 Ensure all helpers use `$`

* ✨ Add autocompletion

* ⚡ Filter out welcome note node

* ⚡ Convey error line number

* ⚡ Highlight error line

* ⚡ Restore logging from node

* ✨ More autocompletions

* ⚡ Streamline completions

* ✏️ Update placeholders

* ⚡ Update linter to new methods

* 🔥 Remove `$nodeItem` completions

* ⚡ Re-update placeholders

* 🎨 Fix formatting

* 📦 Update `package-lock.json`

* ⚡ Refresh with multi-line empty string

* ⚡ Account for syntax errors

* 🔥 Remove unneeded variant

* ⚡ Minor improvements

* ⚡ Add more autocompletions

* 🚚 Rename extension

* 🔥 Remove outdated comments

* 🚚 Rename field

* ✨ More autocompletions

* ⚡ Fix up error display when empty text

* 🔥 Remove logging

* ✨ More error validation

* 🐛 Fix `pairedItem` to `pairedItem()`

* ⚡ Add item to validation info

* 📦 Update `package-lock.json`

* ⚡ Leftover fixes

* ⚡ Set `insertNewlineAndIndent`

* 📦 Update `package-lock.json`

* 📦 Re-update `package-lock.json`

* 👕 Add lint exception

* 📘 Add type to mixin type

* Clean up comment

* ⚡ Refactor completion per new requirements

* ⚡ Adjust placeholders

* ⚡ Add `json` autocompletions for `$input`

* 🎨 Set border

* ⚡ Restore local completion source

* ⚡ Implement autocompletion for imports

* ⚡ Add `.*` to follow user typing on autocompletion

* 📘 Fix typings in autocompletions

* 👕 Add linting for use of `item()`

* 📦 Update `package-lock.json`

* 🐛 Fix for `$items(nodeName)[0]`

* ⚡ Filter down built-in modules list

* ⚡ Refactor error handling

* ⚡ Linter and validation improvements

* ⚡ Apply review feedback

* ♻️ More general refactorings

* ⚡ Add dot notation utility

* Customize input handler

* ⚡ Support `.json.` completions

* ⚡ Adjust placeholder

* ⚡ Sort imports

* 🔥 Remove blank rows addition

* ⚡ Add more error validation

* 📦 Update `package-lock.json`

* ⚡ Make date logging consistent

* 🔧 Adjust linting highlight range

* ⚡ Add line numbers to each item mode errors

* ⚡ Allow for links in error descriptions

* ⚡ More input validation

* ⚡ Expand linting to loops

* ⚡ Deprecate Function and Function Item nodes

* 🐛 Fix placeholder syntax

* 📘 Narrow down type

* 🚚 Rename using kebab-case

* 🔥 Remove `mapGetters`

* ✏️ Fix casing

* ⚡ Adjust import for type

* ✏️ Fix quotes

* 🐛 Fix `activeNode` reference

* ⚡ Use constant

* 🔥 Remove logging

* ✏️ Fix typo

* ⚡ Add missing `notice`

* ✏️ Add tags

* ✏️ Fix alias

* ✏️ Update copy

* 🔥 Remove wrong linting

* ✏️ Update copy

* ⚡ Add validation for `null`

* ⚡ Add validation for non-object and non-array

* ⚡ Add validation for non-array with json

* ✏️ Intentionally use wrong spelling

* ⚡ More validation

* ✏️ More copy updates

* ✏️ Placeholder updates

* ⏪ Restore spelling

* ⚡ Fix var name

* ✏️ More copy updates

* ⚡ Add luxon autocompletions

* ⚡ Make scrollable

* ⚡ Fix comma from merge conflict resolution

* 📦 Update `package-lock.json`

* 👕 Fix lint detail

* 🎨 Set font family

* ⚡ Bring in expressions fix

* ♻️ Address feedback

* ⚡ Exclude codemirror packages from render chunks

* 🐛 Fix placeholder not showing on first load

* feat(editor-ui): Replace `lezer` with `esprima` in client linter (#4192)

* 🔥 Remove addition from misresolved conflict

* ⚡ Replace `lezer` with `esprima` in client linter

* ⚡ Add missing key

* 📦 Update `package-lock.json`

* ⚡ Match dependencies

* 📦 Update `package-lock.json`

* 📦 Re-update `package-lock.json`

* ⚡ Match whitespace

* 🐛 Fix selection

* ⚡ Expand validation

* 🔥 Remove validation

* ✏️ Update copy

* 🚚 Move to constants

* ⚡ More `null` validation

* ⚡ Support `all()` with index to access item

* ⚡ Gloss over n8n syntax error

* 🎨 Re-style diagnostic button

* 🔥 Remove `item` as `itemAlias`

* ⚡ Add linting for `item.json` in single item mode

* ⚡ Refactor to add label info descriptions

* ⚡ More autocompletions

* 👕 Fix lint

* ⚡ Simplify typings

* feat(nodes-base): Multiline autocompletion for `code-node-editor` (#4220)

* ⚡ Simplify typings

* ⚡ Consolidate helpers in utils

* ⚡ Multiline autocompletion for standalone vars

* 🔥 Remove unneeded mixins

* ✏️ Update copy

* ✏️ Prep TODOs

* ⚡ Multiline completion for `$input.method` + `$input.item`

* 🔥 Remove unused method

* 🔥 Remove another unused method

* 🚚 Move luxon strings to helpers

* ⚡ Multiline autocompletion for methods output

* ⚡ Refactor to use optional chaining

* 👕 Fix lint

* ✏️ Update TODOs

* ⚡ Multiline autocompletion for `json` fields

* 📘 Add typings

* ⚡ De-duplicate callback to forEach

* 🐛 Fix autocompletions not working with leading whitespace

* 🌐 Apply i18n

* 👕 Fix lint

* :constructor: Second-period var usage completions

* 👕 Fix lint

* 👕 Add exception

* ⚡ Add completion telemetry

* 📘 Add typing

* ⚡ Major refactoring to organize

* 🐛 Fix multiline `.all()[index]`

* 🐛 Do not autoclose square brackets prior to `.json`

* 🐛 Fix accessor for multiline `jsonField` completions

* ⚡ Add completions for half-assignments

* 🐛 Fix `jsonField` completions for `x.json`

* ✏️ Improve comments

* 🐛 Fix `.json[field]` for multiline matches

* ⚡ Cleanup

* 📦 Update `package-lock.json`

* 👕 Fix lint

* 🐛 Rely on original value for custom matcher

* ⚡ Create `customMatcherJsonFieldCompletions` to simplify setup

* 🐛 Include selector in `customMatcherJsonField` completions

* ✏️ Make naming consistent

* ✏️ Add docline

* ⚡ Finish self-review cleanup

* 🔥 Remove outdated comment

* 📌 Pin luxon to major-minor

* ✏️ Fix typo

* 📦 Update `package-lock.json`

* 📦 Update `package-lock.json`

* 📦 Re-update `package-lock.json`

* ➕ Add `luxon` for Gmail node

* 📦 Update `package-lock.json`

* ⚡ Replace Function with Code in suggested nodes

* 🐛 Fix `$prevNode` completions

* ✏️ Update `$execution.mode` copy

* ⚡ Separate luxon getters from methods

* ⚡ Adjusting linter to tolerate `.binary`

* ⚡ Adjust top-level item keys check

* ⚡ Anticipate user expecting `item` to pre-exist

* ⚡ Add linting for legacy item access

* ⚡ Add hint for attempted `items` access

* ⚡ Add keybinding for toggling comments

* ✏️ Update copy of `all`, `first`, `last` and `itemMatching`

* 🐛 Make `input.all()` etc act on copies

* 📦 Update `package-lock.json`

* 🐛 Fix guard in `$input.last()`

* ♻️ Address Jan's feedback

* ⬆️ Upgrade `eslint-plugin-n8n-nodes-base`

* 📦 Update `package-lock.json`

* 🔥 Remove unneeded exceptions

* ⚡ Restore placeholder logic

* ⚡ Add placeholders to client

* ⚡ Account for shadow item

* ✏️ More completion info labels

* 👕 Fix lint

* ✏️ Update copy

* ✏️ Update copy

* ✏️ More copy updates

* 📦 Update `package-lock.json`

* ⚡ Add more validation

* ⚡ Add placheolder on first load

* Replace `Cmd` with `Mod`

* 📦 Update `package-lock.json`

packages/workflow/src/WorkflowDataProxy.ts

@@ -28,6 +28,7 @@ import {
 import * as NodeHelpers from './NodeHelpers';
 import { ExpressionError } from './ExpressionError';
 import type { Workflow } from './Workflow';
+import { deepCopy } from './utils';
 
 export function isResourceLocatorValue(value: unknown): value is INodeParameterResourceLocator {
 	return Boolean(
@@ -35,6 +36,18 @@ export function isResourceLocatorValue(value: unknown): value is INodeParameterR
 	);
 }
 
+const SCRIPTING_NODE_TYPES = [
+	'n8n-nodes-base.function',
+	'n8n-nodes-base.functionItem',
+	'n8n-nodes-base.code',
+];
+
+const isScriptingNode = (nodeName: string, workflow: Workflow) => {
+	const node = workflow.getNode(nodeName);
+
+	return node && SCRIPTING_NODE_TYPES.includes(node.type);
+};
+
 export class WorkflowDataProxy {
 	private workflow: Workflow;
 
@@ -79,13 +92,20 @@ export class WorkflowDataProxy {
 		defaultReturnRunIndex = -1,
 		selfData = {},
 	) {
+		this.activeNodeName = activeNodeName;
 		this.workflow = workflow;
-		this.runExecutionData = runExecutionData;
+
+		this.runExecutionData = isScriptingNode(activeNodeName, workflow)
+			? deepCopy(runExecutionData)
+			: runExecutionData;
+
+		this.connectionInputData = isScriptingNode(activeNodeName, workflow)
+			? deepCopy(connectionInputData)
+			: connectionInputData;
+
 		this.defaultReturnRunIndex = defaultReturnRunIndex;
 		this.runIndex = runIndex;
 		this.itemIndex = itemIndex;
-		this.activeNodeName = activeNodeName;
-		this.connectionInputData = connectionInputData;
 		this.siblingParameters = siblingParameters;
 		this.mode = mode;
 		this.defaultTimezone = defaultTimezone;
@@ -587,11 +607,6 @@ export class WorkflowDataProxy {
 			return jmespath.search(data, query);
 		};
 
-		const isFunctionNode = (nodeName: string) => {
-			const node = that.workflow.getNode(nodeName);
-			return node && ['n8n-nodes-base.function', 'n8n-nodes-base.functionItem'].includes(node.type);
-		};
-
 		const createExpressionError = (
 			message: string,
 			context?: {
@@ -611,7 +626,7 @@ export class WorkflowDataProxy {
 				type?: string;
 			},
 		) => {
-			if (isFunctionNode(that.activeNodeName) && context?.functionOverrides) {
+			if (isScriptingNode(that.activeNodeName, that.workflow) && context?.functionOverrides) {
 				// If the node in which the error is thrown is a function node,
 				// display a different error message in case there is one defined
 				message = context.functionOverrides.message || message;
@@ -635,7 +650,7 @@ export class WorkflowDataProxy {
 					context.descriptionTemplate = `To fetch the data for the expression under '%%PARAMETER%%', you must unpin the node <strong>'${nodeName}'</strong> and execute the workflow again.`;
 				}
 
-				if (context.moreInfoLink && (pinData || isFunctionNode(nodeName))) {
+				if (context.moreInfoLink && (pinData || isScriptingNode(nodeName, that.workflow))) {
 					const moreInfoLink =
 						' <a target="_blank" href="https://docs.n8n.io/data/data-mapping/data-item-linking/item-linking-errors/">More info</a>';