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[DevTools] Remove experimental __IS_INTERNAL_MCP_BUILD__ flag and related code (#35755)

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This is unused.
This commit is contained in:
Ruslan Lesiutin
2026-02-11 16:59:43 +00:00
committed by GitHub
parent 892c68605c
commit 8374c2abf1
9 changed files with 0 additions and 94 deletions
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1
.eslintrc.js
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@@ -507,7 +507,6 @@ module.exports = {
__IS_FIREFOX__: 'readonly',
__IS_EDGE__: 'readonly',
__IS_NATIVE__: 'readonly',
__IS_INTERNAL_MCP_BUILD__: 'readonly',
__IS_INTERNAL_VERSION__: 'readonly',
chrome: 'readonly',
},

1
packages/react-devtools-core/webpack.backend.js
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@@ -72,7 +72,6 @@ module.exports = {
__IS_CHROME__: false,
__IS_EDGE__: false,
__IS_NATIVE__: true,
__IS_INTERNAL_MCP_BUILD__: false,
'process.env.DEVTOOLS_PACKAGE': `"react-devtools-core"`,
'process.env.DEVTOOLS_VERSION': `"${DEVTOOLS_VERSION}"`,
'process.env.GITHUB_URL': `"${GITHUB_URL}"`,

1
packages/react-devtools-core/webpack.standalone.js
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@@ -91,7 +91,6 @@ module.exports = {
__IS_FIREFOX__: false,
__IS_CHROME__: false,
__IS_EDGE__: false,
__IS_INTERNAL_MCP_BUILD__: false,
'process.env.DEVTOOLS_PACKAGE': `"react-devtools-core"`,
'process.env.DEVTOOLS_VERSION': `"${DEVTOOLS_VERSION}"`,
'process.env.EDITOR_URL': EDITOR_URL != null ? `"${EDITOR_URL}"` : null,

6
packages/react-devtools-extensions/webpack.config.js
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@@ -34,8 +34,6 @@ const IS_FIREFOX = process.env.IS_FIREFOX === 'true';
const IS_EDGE = process.env.IS_EDGE === 'true';
const IS_INTERNAL_VERSION = process.env.FEATURE_FLAG_TARGET === 'extension-fb';
const IS_INTERNAL_MCP_BUILD = process.env.IS_INTERNAL_MCP_BUILD === 'true';
const featureFlagTarget = process.env.FEATURE_FLAG_TARGET || 'extension-oss';
let statsFileName = `webpack-stats.${featureFlagTarget}.${__DEV__ ? 'development' : 'production'}`;
@@ -48,9 +46,6 @@ if (IS_FIREFOX) {
if (IS_EDGE) {
statsFileName += `.edge`;
}
if (IS_INTERNAL_MCP_BUILD) {
statsFileName += `.mcp`;
}
statsFileName += '.json';
const babelOptions = {
@@ -139,7 +134,6 @@ module.exports = {
__IS_FIREFOX__: IS_FIREFOX,
__IS_EDGE__: IS_EDGE,
__IS_NATIVE__: false,
__IS_INTERNAL_MCP_BUILD__: IS_INTERNAL_MCP_BUILD,
__IS_INTERNAL_VERSION__: IS_INTERNAL_VERSION,
'process.env.DEVTOOLS_PACKAGE': `"react-devtools-extensions"`,
'process.env.DEVTOOLS_VERSION': `"${DEVTOOLS_VERSION}"`,

1
packages/react-devtools-fusebox/webpack.config.frontend.js
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@@ -85,7 +85,6 @@ module.exports = {
__IS_CHROME__: false,
__IS_FIREFOX__: false,
__IS_EDGE__: false,
__IS_INTERNAL_MCP_BUILD__: false,
'process.env.DEVTOOLS_PACKAGE': `"react-devtools-fusebox"`,
'process.env.DEVTOOLS_VERSION': `"${DEVTOOLS_VERSION}"`,
'process.env.EDITOR_URL': EDITOR_URL != null ? `"${EDITOR_URL}"` : null,

1
packages/react-devtools-inline/webpack.config.js
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@@ -77,7 +77,6 @@ module.exports = {
__IS_FIREFOX__: false,
__IS_EDGE__: false,
__IS_NATIVE__: false,
__IS_INTERNAL_MCP_BUILD__: false,
'process.env.DEVTOOLS_PACKAGE': `"react-devtools-inline"`,
'process.env.DEVTOOLS_VERSION': `"${DEVTOOLS_VERSION}"`,
'process.env.EDITOR_URL': EDITOR_URL != null ? `"${EDITOR_URL}"` : null,

81
packages/react-devtools-shared/src/backend/fiber/renderer.js vendored
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@@ -8871,86 +8871,6 @@ export function attach(
return unresolvedSource;
}
type InternalMcpFunctions = {
__internal_only_getComponentTree?: Function,
};
const internalMcpFunctions: InternalMcpFunctions = {};
if (__IS_INTERNAL_MCP_BUILD__) {
// eslint-disable-next-line no-inner-declarations
function __internal_only_getComponentTree(): string {
let treeString = '';
function buildTreeString(
instance: DevToolsInstance,
prefix: string = '',
isLastChild: boolean = true,
): void {
if (!instance) return;
const name =
(instance.kind !== VIRTUAL_INSTANCE
? getDisplayNameForFiber(instance.data)
: instance.data.name) || 'Unknown';
const id = instance.id !== undefined ? instance.id : 'unknown';
if (name !== 'createRoot()') {
treeString +=
prefix +
(isLastChild ? '└── ' : '├── ') +
name +
' (id: ' +
id +
')\n';
}
const childPrefix = prefix + (isLastChild ? ' ' : '│ ');
let childCount = 0;
let tempChild = instance.firstChild;
while (tempChild !== null) {
childCount++;
tempChild = tempChild.nextSibling;
}
let child = instance.firstChild;
let currentChildIndex = 0;
while (child !== null) {
currentChildIndex++;
const isLastSibling = currentChildIndex === childCount;
buildTreeString(child, childPrefix, isLastSibling);
child = child.nextSibling;
}
}
const rootInstances: Array<DevToolsInstance> = [];
idToDevToolsInstanceMap.forEach(instance => {
if (instance.parent === null || instance.parent.parent === null) {
rootInstances.push(instance);
}
});
if (rootInstances.length > 0) {
for (let i = 0; i < rootInstances.length; i++) {
const isLast = i === rootInstances.length - 1;
buildTreeString(rootInstances[i], '', isLast);
if (!isLast) {
treeString += '\n';
}
}
} else {
treeString = 'No component tree found.';
}
return treeString;
}
internalMcpFunctions.__internal_only_getComponentTree =
__internal_only_getComponentTree;
}
return {
cleanup,
clearErrorsAndWarnings,
@@ -8994,6 +8914,5 @@ export function attach(
supportsTogglingSuspense,
updateComponentFilters,
getEnvironmentNames,
...internalMcpFunctions,
};
}

1
scripts/flow/react-devtools.js vendored
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@@ -16,6 +16,5 @@ declare const __IS_FIREFOX__: boolean;
declare const __IS_CHROME__: boolean;
declare const __IS_EDGE__: boolean;
declare const __IS_NATIVE__: boolean;
declare const __IS_INTERNAL_MCP_BUILD__: boolean;
declare const chrome: any;

1
scripts/jest/devtools/setupEnv.js
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@@ -15,7 +15,6 @@ global.__IS_FIREFOX__ = false;
global.__IS_CHROME__ = false;
global.__IS_EDGE__ = false;
global.__IS_NATIVE__ = false;
global.__IS_INTERNAL_MCP_BUILD__ = false;
const ReactVersionTestingAgainst = process.env.REACT_VERSION || ReactVersion;