Add setting showPythonInlineValues (microsoft#407)

* Add setting showPythonInlineValues

* Fix lint

* fix tests

* fix package.json

* Add experimental tag

* fix text

* update translations

* dont register provider if value is false

* fix lint

Author: paulacamargo25

package.json

@@ -128,9 +128,18 @@
             "properties": {
                 "debugpy.debugJustMyCode": {
                     "default": true,
-                    "description": "%debugpy.debugJustMyCode%",
+                    "description": "%debugpy.debugJustMyCode.description%",
                     "scope": "resource",
                     "type": "boolean"
+                },
+                "debugpy.showPythonInlineValues": {
+                    "default": false,
+                    "description": "%debugpy.showPythonInlineValues.description%",
+                    "scope": "resource",
+                    "type": "boolean",
+                    "tags": [
+                        "experimental"
+                    ]
                 }
             },
             "title": "Python Debugger",

package.nls.json

@@ -4,5 +4,6 @@
     "debugpy.command.debugUsingLaunchConfig.title": "Python Debugger: Debug using launch.json",
     "debugpy.command.reportIssue.title": "Report Issue...",
     "debugpy.command.viewOutput.title": "Show Output",
-    "debugpy.debugJustMyCode": "When debugging only step through user-written code. Disable this to allow stepping into library code."
+    "debugpy.debugJustMyCode..description": "When debugging only step through user-written code. Disable this to allow stepping into library code.",
+    "debugpy.showPythonInlineValues.description": "Whether to display inline values in the editor while debugging."
 }

src/extension/extensionInit.ts

@@ -4,11 +4,13 @@
 'use strict';
 
 import {
+    ConfigurationChangeEvent,
     debug,
     DebugConfigurationProviderTriggerKind,
     DebugTreeItem,
     DebugVisualization,
     DebugVisualizationContext,
+    Disposable,
     languages,
     ThemeIcon,
     Uri,
@@ -200,8 +202,32 @@ export async function registerDebugger(context: IExtensionContext): Promise<IExt
         >('inlineHexDecoder', registerHexDebugVisualizationTreeProvider()),
     );
 
-    context.subscriptions.push(
-        languages.registerInlineValuesProvider({ language: 'python' }, new PythonInlineValueProvider()),
+    let registerInlineValuesProviderDisposable: Disposable;
+
+    const showInlineValues = getConfiguration('debugpy').get<boolean>('showPythonInlineValues', false);
+    if (showInlineValues) {
+        registerInlineValuesProviderDisposable = languages.registerInlineValuesProvider(
+            { language: 'python' },
+            new PythonInlineValueProvider(),
+        );
+        context.subscriptions.push(registerInlineValuesProviderDisposable);
+    }
+
+    context.subscriptions.push(
+        workspace.onDidChangeConfiguration((event: ConfigurationChangeEvent) => {
+            if (event.affectsConfiguration('debugpy')) {
+                const showInlineValues = getConfiguration('debugpy').get<boolean>('showPythonInlineValues', false);
+                if (!showInlineValues) {
+                    registerInlineValuesProviderDisposable.dispose();
+                } else {
+                    registerInlineValuesProviderDisposable = languages.registerInlineValuesProvider(
+                        { language: 'python' },
+                        new PythonInlineValueProvider(),
+                    );
+                    context.subscriptions.push(registerInlineValuesProviderDisposable);
+                }
+            }
+        }),
     );
 
     context.subscriptions.push(

src/test/unittest/inlineValue/pythonInlineValueProvider.unit.test.ts

@@ -5,11 +5,12 @@
 
 import * as chaiAsPromised from 'chai-as-promised';
 import * as path from 'path';
+import * as TypeMoq from 'typemoq';
 import * as sinon from 'sinon';
 import { use, expect } from 'chai';
 import { EXTENSION_ROOT_DIR_FOR_TESTS } from '../../constants';
 import { PythonInlineValueProvider } from '../../../extension/debugger/inlineValue/pythonInlineValueProvider';
-import { workspace, Range, InlineValueContext } from 'vscode';
+import { workspace, Range, InlineValueContext, WorkspaceConfiguration } from 'vscode';
 import * as vscodeapi from '../../../extension/common/vscodeapi';
 
 use(chaiAsPromised);
@@ -18,16 +19,27 @@ const WS_ROOT = path.join(EXTENSION_ROOT_DIR_FOR_TESTS, 'src', 'test');
 
 suite('Debugging - pythonInlineProvider', () => {
     let customRequestStub: sinon.SinonStub;
+    let getConfigurationStub: sinon.SinonStub;
 
     setup(() => {
         customRequestStub = sinon.stub(vscodeapi, 'customRequest');
         customRequestStub.withArgs('scopes', sinon.match.any).resolves({ scopes: [{ variablesReference: 0 }] });
+        getConfigurationStub = sinon.stub(vscodeapi, 'getConfiguration');
+        getConfigurationStub.withArgs('debugpy').returns(createMoqConfiguration(true));
     });
 
     teardown(async () => {
         sinon.restore();
     });
 
+    function createMoqConfiguration(showPythonInlineValues: boolean) {
+        const debugpySettings = TypeMoq.Mock.ofType<WorkspaceConfiguration>();
+        debugpySettings
+            .setup((p) => p.get<boolean>('showPythonInlineValues', TypeMoq.It.isAny()))
+            .returns(() => showPythonInlineValues);
+        return debugpySettings.object;
+    }
+
     test('ProvideInlineValues function should return all the vars in the python file', async () => {
         customRequestStub.withArgs('variables', sinon.match.any).resolves({
             variables: [
@@ -331,7 +343,7 @@ suite('Debugging - pythonInlineProvider', () => {
         expect(result).to.deep.equal(expected);
     });
 
-    test.only('ProvideInlineValues function should return all the vars in the python file using Assignment Expressions', async () => {
+    test('ProvideInlineValues function should return all the vars in the python file using Assignment Expressions', async () => {
         customRequestStub.withArgs('variables', sinon.match.any).resolves({
             variables: [
                 {