219 lines
9.8 KiB
JavaScript
219 lines
9.8 KiB
JavaScript
"use strict";
|
|
var __assign = (this && this.__assign) || function () {
|
|
__assign = Object.assign || function(t) {
|
|
for (var s, i = 1, n = arguments.length; i < n; i++) {
|
|
s = arguments[i];
|
|
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
|
|
t[p] = s[p];
|
|
}
|
|
return t;
|
|
};
|
|
return __assign.apply(this, arguments);
|
|
};
|
|
var __spreadArray = (this && this.__spreadArray) || function (to, from) {
|
|
for (var i = 0, il = from.length, j = to.length; i < il; i++, j++)
|
|
to[j] = from[i];
|
|
return to;
|
|
};
|
|
var __importDefault = (this && this.__importDefault) || function (mod) {
|
|
return (mod && mod.__esModule) ? mod : { "default": mod };
|
|
};
|
|
var _a;
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.analyze = exports.getPotentiallyUnused = exports.importsForSideEffects = exports.getExported = exports.trackWildcardUses = exports.AnalysisResultTypeEnum = void 0;
|
|
var constants_1 = require("./constants");
|
|
var ts_morph_1 = require("ts-morph");
|
|
var isDefinitelyUsedImport_1 = require("./util/isDefinitelyUsedImport");
|
|
var getModuleSourceFile_1 = require("./util/getModuleSourceFile");
|
|
var getNodesOfKind_1 = require("./util/getNodesOfKind");
|
|
var countBy_1 = __importDefault(require("lodash/fp/countBy"));
|
|
var last_1 = __importDefault(require("lodash/fp/last"));
|
|
var fs_1 = require("fs");
|
|
var AnalysisResultTypeEnum;
|
|
(function (AnalysisResultTypeEnum) {
|
|
AnalysisResultTypeEnum[AnalysisResultTypeEnum["POTENTIALLY_UNUSED"] = 0] = "POTENTIALLY_UNUSED";
|
|
AnalysisResultTypeEnum[AnalysisResultTypeEnum["DEFINITELY_USED"] = 1] = "DEFINITELY_USED";
|
|
})(AnalysisResultTypeEnum = exports.AnalysisResultTypeEnum || (exports.AnalysisResultTypeEnum = {}));
|
|
function handleExportDeclaration(node) {
|
|
return node.getNamedExports().map(function (n) { return n.getName(); });
|
|
}
|
|
function handleImportDeclaration(node) {
|
|
return (__spreadArray(__spreadArray(__spreadArray([], node.getNamedImports().map(function (n) { return n.getName(); })), (node.getDefaultImport() ? ['default'] : [])), (node.getNamespaceImport() ? exports.trackWildcardUses(node) : [])));
|
|
}
|
|
var trackWildcardUses = function (node) {
|
|
var clause = node.getImportClause();
|
|
var namespaceImport = clause.getFirstChildByKind(ts_morph_1.ts.SyntaxKind.NamespaceImport);
|
|
var source = node.getSourceFile();
|
|
var uses = getNodesOfKind_1.getNodesOfKind(source, ts_morph_1.ts.SyntaxKind.Identifier)
|
|
.filter(function (n) { var _a, _b; return ((_b = (_a = n.getSymbol()) === null || _a === void 0 ? void 0 : _a.getDeclarations()) !== null && _b !== void 0 ? _b : []).includes(namespaceImport); });
|
|
var symbols = [];
|
|
for (var _i = 0, uses_1 = uses; _i < uses_1.length; _i++) {
|
|
var use = uses_1[_i];
|
|
if (use.getParentIfKind(ts_morph_1.SyntaxKind.NamespaceImport)) {
|
|
continue;
|
|
}
|
|
var p = use.getParentIfKind(ts_morph_1.SyntaxKind.PropertyAccessExpression);
|
|
if (p) {
|
|
symbols.push(p.getName());
|
|
continue;
|
|
}
|
|
var el = use.getParentIfKind(ts_morph_1.SyntaxKind.ElementAccessExpression);
|
|
if (el) {
|
|
var arg = el.getArgumentExpression();
|
|
if (arg.getKind() === ts_morph_1.SyntaxKind.StringLiteral) {
|
|
symbols.push(arg.getLiteralText());
|
|
continue;
|
|
}
|
|
}
|
|
var varExp = use.getParentIfKind(ts_morph_1.SyntaxKind.VariableDeclaration);
|
|
if (varExp) {
|
|
var nameNode = varExp.getNameNode();
|
|
if (nameNode.getKind() === ts_morph_1.SyntaxKind.ObjectBindingPattern) {
|
|
var binder = nameNode;
|
|
for (var _a = 0, _b = binder.getElements(); _a < _b.length; _a++) {
|
|
var bindEl = _b[_a];
|
|
var p_1 = bindEl.getPropertyNameNode();
|
|
if (p_1) {
|
|
symbols.push(p_1.getText());
|
|
}
|
|
else {
|
|
symbols.push(bindEl.getName());
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
var qualExp = use.getParentIfKind(ts_morph_1.SyntaxKind.QualifiedName);
|
|
if (qualExp) {
|
|
symbols.push(qualExp.getRight().getText());
|
|
continue;
|
|
}
|
|
return ['*'];
|
|
}
|
|
return symbols;
|
|
};
|
|
exports.trackWildcardUses = trackWildcardUses;
|
|
function handleDynamicImport(node) {
|
|
return ["*"];
|
|
}
|
|
var nodeHandlers = (_a = {},
|
|
_a[ts_morph_1.ts.SyntaxKind.ExportDeclaration.toString()] = handleExportDeclaration,
|
|
_a[ts_morph_1.ts.SyntaxKind.ImportDeclaration.toString()] = handleImportDeclaration,
|
|
_a[ts_morph_1.ts.SyntaxKind.CallExpression.toString()] = handleDynamicImport,
|
|
_a);
|
|
var mustIgnore = function (symbol, file) {
|
|
var _a, _b;
|
|
var symbolLinePos = symbol
|
|
.getDeclarations()
|
|
.map(function (decl) { return decl.getStartLinePos(); })
|
|
.reduce(function (currentMin, current) { return Math.min(currentMin, current); }, Infinity);
|
|
var comments = (_a = file
|
|
.getDescendantAtPos(symbolLinePos)) === null || _a === void 0 ? void 0 : _a.getLeadingCommentRanges();
|
|
if (!comments) {
|
|
return false;
|
|
}
|
|
return (_b = last_1.default(comments)) === null || _b === void 0 ? void 0 : _b.getText().includes(constants_1.ignoreComment);
|
|
};
|
|
var lineNumber = function (symbol) {
|
|
return symbol.getDeclarations().map(function (decl) { return decl.getStartLineNumber(); }).reduce(function (currentMin, current) { return Math.min(currentMin, current); }, Infinity);
|
|
};
|
|
var getExported = function (file) {
|
|
return file.getExportSymbols()
|
|
.filter(function (symbol) { return !mustIgnore(symbol, file); })
|
|
.map(function (symbol) { return ({
|
|
name: symbol.compilerSymbol.name,
|
|
line: lineNumber(symbol)
|
|
}); });
|
|
};
|
|
exports.getExported = getExported;
|
|
var importsForSideEffects = function (file) {
|
|
return file
|
|
.getImportDeclarations()
|
|
.map(function (decl) { return ({
|
|
moduleSourceFile: getModuleSourceFile_1.getModuleSourceFile(decl),
|
|
definitelyUsed: isDefinitelyUsedImport_1.isDefinitelyUsedImport(decl)
|
|
}); })
|
|
.filter(function (meta) { return meta.definitelyUsed && !!meta.moduleSourceFile; })
|
|
.map(function (_a) {
|
|
var moduleSourceFile = _a.moduleSourceFile;
|
|
return ({
|
|
file: moduleSourceFile,
|
|
symbols: [],
|
|
type: AnalysisResultTypeEnum.DEFINITELY_USED
|
|
});
|
|
});
|
|
};
|
|
exports.importsForSideEffects = importsForSideEffects;
|
|
var exportWildCards = function (file) {
|
|
return file
|
|
.getExportDeclarations()
|
|
.filter(function (decl) { return decl.getText().includes("*"); })
|
|
.map(function (decl) { return ({
|
|
file: getModuleSourceFile_1.getModuleSourceFile(decl),
|
|
symbols: [],
|
|
type: AnalysisResultTypeEnum.DEFINITELY_USED
|
|
}); });
|
|
};
|
|
var getDefinitelyUsed = function (file) { return (__spreadArray(__spreadArray([], exports.importsForSideEffects(file)), exportWildCards(file))); };
|
|
var getReferences = function (originalList, skipper) {
|
|
if (skipper) {
|
|
return originalList.filter(function (file) {
|
|
return !skipper.test(file.getSourceFile().compilerNode.fileName);
|
|
});
|
|
}
|
|
return originalList;
|
|
};
|
|
var getPotentiallyUnused = function (file, skipper) {
|
|
var exported = exports.getExported(file);
|
|
var idsInFile = file.getDescendantsOfKind(ts_morph_1.ts.SyntaxKind.Identifier);
|
|
var referenceCounts = countBy_1.default(function (x) { return x; })((idsInFile || []).map(function (node) { return node.getText(); }));
|
|
var referencedInFile = Object.entries(referenceCounts)
|
|
.reduce(function (previous, _a) {
|
|
var name = _a[0], count = _a[1];
|
|
return previous.concat(count > 1 ? [name] : []);
|
|
}, []);
|
|
var referenced = getReferences(file.getReferencingNodesInOtherSourceFiles(), skipper).reduce(function (previous, node) {
|
|
var _a, _b;
|
|
var kind = node.getKind().toString();
|
|
var value = (_b = (_a = nodeHandlers === null || nodeHandlers === void 0 ? void 0 : nodeHandlers[kind]) === null || _a === void 0 ? void 0 : _a.call(nodeHandlers, node)) !== null && _b !== void 0 ? _b : [];
|
|
return previous.concat(value);
|
|
}, []);
|
|
var unused = referenced.includes("*") ? [] :
|
|
exported.filter(function (exp) { return !referenced.includes(exp.name); })
|
|
.map(function (exp) { return (__assign(__assign({}, exp), { usedInModule: referencedInFile.includes(exp.name) })); });
|
|
return {
|
|
file: file.getFilePath(),
|
|
symbols: unused,
|
|
type: AnalysisResultTypeEnum.POTENTIALLY_UNUSED
|
|
};
|
|
};
|
|
exports.getPotentiallyUnused = getPotentiallyUnused;
|
|
var emitTsConfigEntrypoints = function (entrypoints, onResult) {
|
|
return entrypoints.map(function (file) { return ({
|
|
file: file,
|
|
symbols: [],
|
|
type: AnalysisResultTypeEnum.DEFINITELY_USED,
|
|
}); }).forEach(function (emittable) { return onResult(emittable); });
|
|
};
|
|
var filterSkippedFiles = function (sourceFiles, skipper) {
|
|
if (!skipper) {
|
|
return sourceFiles;
|
|
}
|
|
return sourceFiles.filter(function (file) { return !skipper.test(file.getSourceFile().compilerNode.fileName); });
|
|
};
|
|
var analyze = function (project, onResult, entrypoints, skipPattern) {
|
|
var skipper = skipPattern ? new RegExp(skipPattern) : undefined;
|
|
filterSkippedFiles(project.getSourceFiles(), skipper)
|
|
.forEach(function (file) {
|
|
__spreadArray([
|
|
exports.getPotentiallyUnused(file, skipper)
|
|
], getDefinitelyUsed(file)).forEach(function (result) {
|
|
if (!result.file)
|
|
return;
|
|
onResult(__assign(__assign({}, result), { file: fs_1.realpathSync(result.file) }));
|
|
});
|
|
});
|
|
emitTsConfigEntrypoints(entrypoints, onResult);
|
|
};
|
|
exports.analyze = analyze;
|
|
//# sourceMappingURL=analyzer.js.map
|