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2025-06-10 16:10:59 -04:00
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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.AngularComponentAnalyzer = void 0;
const CSSAnalyzer_1 = require("./CSSAnalyzer");
const HTMLAnalyzer_1 = require("./HTMLAnalyzer");
const TypeScriptAnalyzer_1 = require("./TypeScriptAnalyzer");
const FileResolver_1 = require("../utils/FileResolver");
const UnusedStyleFinder_1 = require("../utils/UnusedStyleFinder");
class AngularComponentAnalyzer {
constructor() {
this.cssAnalyzer = new CSSAnalyzer_1.CSSAnalyzer();
this.htmlAnalyzer = new HTMLAnalyzer_1.HTMLAnalyzer();
this.tsAnalyzer = new TypeScriptAnalyzer_1.TypeScriptAnalyzer();
this.fileResolver = new FileResolver_1.FileResolver();
this.unusedStyleFinder = new UnusedStyleFinder_1.UnusedStyleFinder();
}
async analyzeComponent(componentFiles) {
if (!componentFiles.styles) {
return [];
}
const cssSelectors = this.cssAnalyzer.extractSelectors(componentFiles.styles);
const htmlUsedSelectors = componentFiles.html ?
this.htmlAnalyzer.extractUsedSelectors(componentFiles.html) : new Set();
const tsUsedSelectors = componentFiles.typescript ?
this.tsAnalyzer.extractDynamicSelectors(componentFiles.typescript) : new Set();
const allUsedSelectors = new Set([...htmlUsedSelectors, ...tsUsedSelectors]);
return this.unusedStyleFinder.findUnusedStyles(cssSelectors, allUsedSelectors, componentFiles.styles);
}
async getComponentFiles(document) {
return this.fileResolver.getComponentFiles(document);
}
}
exports.AngularComponentAnalyzer = AngularComponentAnalyzer;
//# sourceMappingURL=AngularComponentAnalyzer.js.map

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.CSSAnalyzer = void 0;
class CSSAnalyzer {
extractSelectors(document) {
const selectors = new Map();
const text = document.getText();
// Parse CSS/SCSS using regex-based approach
this.parseStylesheet(text, selectors);
return selectors;
}
parseStylesheet(text, selectors) {
const lines = text.split('\n');
let inComment = false;
let inRule = false;
let braceCount = 0;
for (let i = 0; i < lines.length; i++) {
let line = lines[i];
// Handle multi-line comments
if (inComment) {
const commentEnd = line.indexOf('*/');
if (commentEnd !== -1) {
inComment = false;
line = line.substring(commentEnd + 2);
}
else {
continue;
}
}
// Remove single-line comments
const commentStart = line.indexOf('//');
if (commentStart !== -1) {
line = line.substring(0, commentStart);
}
// Handle multi-line comment start
const multiCommentStart = line.indexOf('/*');
if (multiCommentStart !== -1) {
const multiCommentEnd = line.indexOf('*/', multiCommentStart);
if (multiCommentEnd !== -1) {
line = line.substring(0, multiCommentStart) + line.substring(multiCommentEnd + 2);
}
else {
inComment = true;
line = line.substring(0, multiCommentStart);
}
}
// Count braces to track nesting
const openBraces = (line.match(/\{/g) || []).length;
const closeBraces = (line.match(/\}/g) || []).length;
// If we're not in a rule and line contains a selector pattern
if (!inRule && braceCount === 0) {
const selectorMatch = this.extractSelectorFromLine(line, i);
if (selectorMatch) {
selectors.set(selectorMatch.selector, {
line: i,
character: selectorMatch.character,
length: selectorMatch.length
});
}
}
braceCount += openBraces - closeBraces;
inRule = braceCount > 0;
}
}
extractSelectorFromLine(line, lineNumber) {
// Remove leading/trailing whitespace
const trimmed = line.trim();
// Skip empty lines, variables, imports, mixins, etc.
if (!trimmed ||
trimmed.startsWith('$') ||
trimmed.startsWith('@') ||
trimmed.startsWith('//') ||
trimmed.startsWith('/*') ||
!trimmed.includes('{')) {
return null;
}
// Extract selector part (everything before the opening brace)
const braceIndex = trimmed.indexOf('{');
if (braceIndex === -1) {
return null;
}
const selectorPart = trimmed.substring(0, braceIndex).trim();
// Validate that this looks like a CSS selector
if (this.isValidSelector(selectorPart)) {
const character = line.indexOf(selectorPart);
return {
selector: selectorPart,
character: character >= 0 ? character : 0,
length: selectorPart.length
};
}
return null;
}
isValidSelector(selector) {
// Skip SCSS control structures and mixins
if (selector.startsWith('@') ||
selector.includes('@if') ||
selector.includes('@for') ||
selector.includes('@while') ||
selector.includes('@each') ||
selector.includes('@mixin') ||
selector.includes('@include')) {
return false;
}
// Basic CSS selector patterns
const selectorPatterns = [
/^[.#]?[a-zA-Z_-][a-zA-Z0-9_-]*/,
/^::[a-zA-Z-]+/,
/^:[a-zA-Z-]+/,
/^\[.*\]/,
/^[*]/, // Universal selector
];
// Check if selector matches any valid pattern
return selectorPatterns.some(pattern => pattern.test(selector.trim())) ||
selector.includes('.') ||
selector.includes('#') ||
selector.includes(':');
}
}
exports.CSSAnalyzer = CSSAnalyzer;
//# sourceMappingURL=CSSAnalyzer.js.map

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.HTMLAnalyzer = void 0;
class HTMLAnalyzer {
extractUsedSelectors(document) {
const usedSelectors = new Set();
const text = document.getText();
// Extract class attributes
const classMatches = text.match(/class\s*=\s*["']([^"']+)["']/g) || [];
classMatches.forEach(match => {
const classes = match.replace(/class\s*=\s*["']([^"']+)["']/, '$1').split(/\s+/);
classes.forEach(cls => cls.trim() && usedSelectors.add(cls.trim()));
});
// Extract id attributes
const idMatches = text.match(/id\s*=\s*["']([^"']+)["']/g) || [];
idMatches.forEach(match => {
const id = match.replace(/id\s*=\s*["']([^"']+)["']/, '$1').trim();
if (id)
usedSelectors.add(id);
});
// Extract Angular class bindings
const ngClassMatches = text.match(/\[class\.([^\]]+)\]/g) || [];
ngClassMatches.forEach(match => {
const className = match.replace(/\[class\.([^\]]+)\]/, '$1');
usedSelectors.add(className);
});
// Extract ngClass bindings
const ngClassObjectMatches = text.match(/\[ngClass\]\s*=\s*["']([^"']+)["']/g) || [];
ngClassObjectMatches.forEach(match => {
const expr = match.replace(/\[ngClass\]\s*=\s*["']([^"']+)["']/, '$1');
// This would need more sophisticated parsing for object expressions
const possibleClasses = expr.match(/['"`]([^'"`]+)['"`]/g) || [];
possibleClasses.forEach(cls => {
const className = cls.replace(/['"`]/g, '');
usedSelectors.add(className);
});
});
return usedSelectors;
}
}
exports.HTMLAnalyzer = HTMLAnalyzer;
//# sourceMappingURL=HTMLAnalyzer.js.map

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.TypeScriptAnalyzer = void 0;
class TypeScriptAnalyzer {
extractDynamicSelectors(document) {
const dynamicSelectors = new Set();
const text = document.getText();
// Look for renderer.addClass, renderer.removeClass calls
const rendererMatches = text.match(/renderer\.(addClass|removeClass)\s*\(\s*[^,]+,\s*['"`]([^'"`]+)['"`]/g) || [];
rendererMatches.forEach(match => {
const className = match.replace(/.*['"`]([^'"`]+)['"`].*/, '$1');
dynamicSelectors.add(className);
});
// Look for element.classList operations
const classListMatches = text.match(/\.classList\.(add|remove|toggle)\s*\(\s*['"`]([^'"`]+)['"`]/g) || [];
classListMatches.forEach(match => {
const className = match.replace(/.*['"`]([^'"`]+)['"`].*/, '$1');
dynamicSelectors.add(className);
});
// Look for HostBinding decorators
const hostBindingMatches = text.match(/@HostBinding\s*\(\s*['"`]class\.([^'"`]+)['"`]/g) || [];
hostBindingMatches.forEach(match => {
const className = match.replace(/@HostBinding\s*\(\s*['"`]class\.([^'"`]+)['"`].*/, '$1');
dynamicSelectors.add(className);
});
// Look for string literals that might be class names
const stringLiteralMatches = text.match(/['"`][a-zA-Z_-][a-zA-Z0-9_-]*['"`]/g) || [];
stringLiteralMatches.forEach(match => {
const str = match.replace(/['"`]/g, '');
// Only consider strings that look like CSS class names
if (str.match(/^[a-zA-Z_-][a-zA-Z0-9_-]*$/) && str.length > 2) {
dynamicSelectors.add(str);
}
});
return dynamicSelectors;
}
}
exports.TypeScriptAnalyzer = TypeScriptAnalyzer;
//# sourceMappingURL=TypeScriptAnalyzer.js.map

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"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.deactivate = exports.activate = void 0;
const vscode = __importStar(require("vscode"));
const AngularComponentAnalyzer_1 = require("./analyzer/AngularComponentAnalyzer");
const UnusedStylesProvider_1 = require("./providers/UnusedStylesProvider");
let analyzer;
let diagnosticCollection;
function activate(context) {
analyzer = new AngularComponentAnalyzer_1.AngularComponentAnalyzer();
diagnosticCollection = vscode.languages.createDiagnosticCollection('angular-unused-styles');
const provider = new UnusedStylesProvider_1.UnusedStylesProvider(analyzer, diagnosticCollection);
// Register command
const analyzeCommand = vscode.commands.registerCommand('angular-unused-styles.analyze', () => {
provider.analyzeCurrentWorkspace();
});
// Register document change handlers
const onDidChangeTextDocument = vscode.workspace.onDidChangeTextDocument(event => {
if (isAngularFile(event.document.fileName)) {
provider.analyzeDocument(event.document);
}
});
const onDidOpenTextDocument = vscode.workspace.onDidOpenTextDocument(document => {
if (isAngularFile(document.fileName)) {
provider.analyzeDocument(document);
}
});
context.subscriptions.push(analyzeCommand, onDidChangeTextDocument, onDidOpenTextDocument, diagnosticCollection);
}
exports.activate = activate;
function isAngularFile(fileName) {
return fileName.endsWith('.component.ts') ||
fileName.endsWith('.component.html') ||
fileName.endsWith('.component.scss') ||
fileName.endsWith('.component.css');
}
function deactivate() {
if (diagnosticCollection) {
diagnosticCollection.dispose();
}
}
exports.deactivate = deactivate;
//# sourceMappingURL=extension.js.map

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"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.UnusedStylesProvider = void 0;
const vscode = __importStar(require("vscode"));
class UnusedStylesProvider {
constructor(analyzer, diagnosticCollection) {
this.analyzer = analyzer;
this.diagnosticCollection = diagnosticCollection;
}
async analyzeDocument(document) {
if (!this.isAngularStyleFile(document.fileName)) {
return;
}
const componentFiles = await this.analyzer.getComponentFiles(document);
const unusedStyles = await this.analyzer.analyzeComponent(componentFiles);
this.updateDiagnostics(document, unusedStyles);
}
async analyzeCurrentWorkspace() {
const workspaceFolders = vscode.workspace.workspaceFolders;
if (!workspaceFolders) {
return;
}
for (const folder of workspaceFolders) {
const pattern = new vscode.RelativePattern(folder, '**/*.component.{scss,css}');
const files = await vscode.workspace.findFiles(pattern);
for (const file of files) {
const document = await vscode.workspace.openTextDocument(file);
await this.analyzeDocument(document);
}
}
vscode.window.showInformationMessage('Angular unused styles analysis completed!');
}
updateDiagnostics(document, unusedStyles) {
const diagnostics = unusedStyles.map(unused => {
const range = new vscode.Range(unused.line, unused.character, unused.line, unused.character + unused.length);
const diagnostic = new vscode.Diagnostic(range, unused.reason, vscode.DiagnosticSeverity.Warning);
diagnostic.source = 'Angular Unused Styles';
diagnostic.code = 'unused-style';
return diagnostic;
});
this.diagnosticCollection.set(document.uri, diagnostics);
}
isAngularStyleFile(fileName) {
return fileName.endsWith('.component.scss') || fileName.endsWith('.component.css');
}
}
exports.UnusedStylesProvider = UnusedStylesProvider;
//# sourceMappingURL=UnusedStylesProvider.js.map

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
//# sourceMappingURL=ComponentInterfaces.js.map

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"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.FileResolver = void 0;
const vscode = __importStar(require("vscode"));
class FileResolver {
async getComponentFiles(document) {
const basePath = this.getBasePath(document.fileName);
const componentFiles = {};
if (document.fileName.endsWith('.component.ts')) {
componentFiles.typescript = document;
}
else if (document.fileName.endsWith('.component.html')) {
componentFiles.html = document;
}
else if (document.fileName.endsWith('.component.scss') || document.fileName.endsWith('.component.css')) {
componentFiles.styles = document;
}
// Try to find related files
try {
if (!componentFiles.typescript) {
const tsFile = await vscode.workspace.openTextDocument(basePath + '.component.ts');
componentFiles.typescript = tsFile;
}
if (!componentFiles.html) {
const htmlFile = await vscode.workspace.openTextDocument(basePath + '.component.html');
componentFiles.html = htmlFile;
}
if (!componentFiles.styles) {
try {
const scssFile = await vscode.workspace.openTextDocument(basePath + '.component.scss');
componentFiles.styles = scssFile;
}
catch {
try {
const cssFile = await vscode.workspace.openTextDocument(basePath + '.component.css');
componentFiles.styles = cssFile;
}
catch {
// No styles file found
}
}
}
}
catch (error) {
// Some files might not exist, which is fine
}
return componentFiles;
}
getBasePath(fileName) {
return fileName.replace(/\.(component\.(ts|html|scss|css))$/, '');
}
}
exports.FileResolver = FileResolver;
//# sourceMappingURL=FileResolver.js.map

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.SelectorMatcher = void 0;
class SelectorMatcher {
isSelectorUsed(cssSelector, usedSelectors) {
// Clean the CSS selector for comparison
const cleanSelector = this.cleanCSSSelector(cssSelector);
// Check for exact matches
if (usedSelectors.has(cleanSelector)) {
return true;
}
// Check for partial matches (class and ID selectors)
for (const used of usedSelectors) {
if (this.selectorsMatch(cleanSelector, used)) {
return true;
}
}
return false;
}
shouldIgnoreSelector(selector, ignoredSelectors) {
return ignoredSelectors.some(ignored => selector.includes(ignored) ||
selector.match(new RegExp(ignored.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'))));
}
cleanCSSSelector(selector) {
// Remove pseudo-classes, pseudo-elements, and complex selectors
return selector
.replace(/::?[a-zA-Z-]+(\([^)]*\))?/g, '') // Remove pseudo-classes/elements
.replace(/\s*[>+~]\s*/g, ' ') // Simplify combinators
.replace(/\[.*?\]/g, '') // Remove attribute selectors
.trim();
}
selectorsMatch(cssSelector, usedSelector) {
// Extract class names and IDs
const cssClasses = cssSelector.match(/\.[a-zA-Z_-][a-zA-Z0-9_-]*/g) || [];
const cssIds = cssSelector.match(/#[a-zA-Z_-][a-zA-Z0-9_-]*/g) || [];
return [...cssClasses, ...cssIds].some(sel => usedSelector.includes(sel.substring(1)) // Remove . or # prefix
);
}
}
exports.SelectorMatcher = SelectorMatcher;
//# sourceMappingURL=SelectorMatcher.js.map

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"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.UnusedStyleFinder = void 0;
const vscode = __importStar(require("vscode"));
const SelectorMatcher_1 = require("./SelectorMatcher");
class UnusedStyleFinder {
constructor() {
this.selectorMatcher = new SelectorMatcher_1.SelectorMatcher();
}
findUnusedStyles(cssSelectors, usedSelectors, styleDocument) {
const unused = [];
const config = vscode.workspace.getConfiguration('angularUnusedStyles');
const ignoredSelectors = config.get('ignoredSelectors', []);
for (const [selector, position] of cssSelectors.entries()) {
if (this.selectorMatcher.shouldIgnoreSelector(selector, ignoredSelectors)) {
continue;
}
if (!this.selectorMatcher.isSelectorUsed(selector, usedSelectors)) {
unused.push({
selector,
line: position.line,
character: position.character,
length: position.length,
reason: `Style '${selector}' appears to be unused`
});
}
}
return unused;
}
}
exports.UnusedStyleFinder = UnusedStyleFinder;
//# sourceMappingURL=UnusedStyleFinder.js.map

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