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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 | 13x 57x 2x 55x 4x 51x 4x 47x 3x 44x 4x 40x 3x 37x 3x 34x 3x 31x 1x 1x 30x 5x 25x 1x 24x 24x 21x 3x 2x 1x 1x 19x 1x 2x 1x 1x 2x 3x 1x 1x 2x 2x 1x 1x 5x 1x 1x 1x 1x 1x 1x 1x 3x 33x 2x 3x 27x 1x 25x 1x 2x 1x 2x 17x 1x 1x | import type { DependencyNode, FileClassification } from './types';
import {
isBarrelExport,
isBoilerplateBarrel,
isTypeDefinition,
isNextJsPage,
isLambdaHandler,
isServiceFile,
isEmailTemplate,
isParserFile,
isSessionFile,
isUtilityModule,
isConfigFile,
isHubAndSpokeFile,
} from './classify/file-classifiers';
/**
* Constants for file classifications to avoid magic strings
*/
export const Classification = {
BARREL: 'barrel-export' as const,
BOILERPLATE: 'boilerplate-barrel' as const,
TYPE_DEFINITION: 'type-definition' as const,
NEXTJS_PAGE: 'nextjs-page' as const,
LAMBDA_HANDLER: 'lambda-handler' as const,
SERVICE: 'service-file' as const,
EMAIL_TEMPLATE: 'email-template' as const,
PARSER: 'parser-file' as const,
COHESIVE_MODULE: 'cohesive-module' as const,
UTILITY_MODULE: 'utility-module' as const,
SPOKE_MODULE: 'spoke-module' as const,
MIXED_CONCERNS: 'mixed-concerns' as const,
UNKNOWN: 'unknown' as const,
};
/**
* Classify a file into a specific type for better analysis context
*
* @param node The dependency node representing the file
* @param cohesionScore The calculated cohesion score for the file
* @param domains The detected domains/concerns for the file
* @returns The determined file classification
*/
export function classifyFile(
node: DependencyNode,
cohesionScore: number = 1,
domains: string[] = []
): FileClassification {
// 1. Detect boilerplate barrels (pure indirection/architectural theater)
if (isBoilerplateBarrel(node)) {
return Classification.BOILERPLATE;
}
// 2. Detect legitimate barrel exports (primarily re-exports that aggregate)
if (isBarrelExport(node)) {
return Classification.BARREL;
}
// 2. Detect type definition files
if (isTypeDefinition(node)) {
return Classification.TYPE_DEFINITION;
}
// 3. Detect Next.js App Router pages
if (isNextJsPage(node)) {
return Classification.NEXTJS_PAGE;
}
// 4. Detect Lambda handlers
if (isLambdaHandler(node)) {
return Classification.LAMBDA_HANDLER;
}
// 5. Detect Service files
if (isServiceFile(node)) {
return Classification.SERVICE;
}
// 6. Detect Email templates
if (isEmailTemplate(node)) {
return Classification.EMAIL_TEMPLATE;
}
// 7. Detect Parser/Transformer files
if (isParserFile(node)) {
return Classification.PARSER;
}
// 8. Detect Session/State management files
if (isSessionFile(node)) {
// If it has high cohesion, it's a cohesive module
Eif (cohesionScore >= 0.25 && domains.length <= 1)
return Classification.COHESIVE_MODULE;
return Classification.UTILITY_MODULE; // Group with utility for now
}
// 9. Detect Utility modules (multi-domain but functional purpose)
if (isUtilityModule(node)) {
return Classification.UTILITY_MODULE;
}
// 10. Detect Config/Schema files
if (isConfigFile(node)) {
return Classification.COHESIVE_MODULE;
}
// 11. Detect Spoke modules in monorepo
Iif (isHubAndSpokeFile(node)) {
return Classification.SPOKE_MODULE;
}
// Cohesion and Domain heuristics
if (domains.length <= 1 && domains[0] !== 'unknown') {
return Classification.COHESIVE_MODULE;
}
if (domains.length > 1 && cohesionScore < 0.4) {
return Classification.MIXED_CONCERNS;
}
Iif (cohesionScore >= 0.7) {
return Classification.COHESIVE_MODULE;
}
return Classification.UNKNOWN;
}
// [Split Point] Logic below this point handled by heuristics.ts
/**
* Adjust cohesion score based on file classification
*
* @param baseCohesion The initial cohesion score
* @param classification The file classification
* @param node Optional dependency node for further context
* @returns The adjusted cohesion score
*/
export function adjustCohesionForClassification(
baseCohesion: number,
classification: FileClassification,
node?: DependencyNode
): number {
switch (classification) {
case Classification.BOILERPLATE:
return 0.2; // Redundant indirection is low cohesion (architectural theater)
case Classification.BARREL:
return 1;
case Classification.TYPE_DEFINITION:
return 1;
case Classification.NEXTJS_PAGE:
return 1;
case Classification.UTILITY_MODULE: {
if (
node &&
hasRelatedExportNames(
(node.exports || []).map((e) => e.name.toLowerCase())
)
) {
return Math.max(0.8, Math.min(1, baseCohesion + 0.45));
}
return Math.max(0.75, Math.min(1, baseCohesion + 0.35));
}
case Classification.SERVICE:
return Math.max(0.72, Math.min(1, baseCohesion + 0.3));
case Classification.LAMBDA_HANDLER:
return Math.max(0.75, Math.min(1, baseCohesion + 0.35));
case Classification.EMAIL_TEMPLATE:
return Math.max(0.72, Math.min(1, baseCohesion + 0.3));
case Classification.PARSER:
return Math.max(0.7, Math.min(1, baseCohesion + 0.3));
case Classification.SPOKE_MODULE:
return Math.max(baseCohesion, 0.6);
case Classification.COHESIVE_MODULE:
return Math.max(baseCohesion, 0.7);
case Classification.MIXED_CONCERNS:
return baseCohesion;
default:
return Math.min(1, baseCohesion + 0.1);
}
}
/**
* Check if export names suggest related functionality
*
* @param exportNames List of exported names
* @returns True if names appear related
*/
function hasRelatedExportNames(exportNames: string[]): boolean {
Iif (exportNames.length < 2) return true;
const stems = new Set<string>();
const domains = new Set<string>();
const verbs = [
'get',
'set',
'create',
'update',
'delete',
'fetch',
'save',
'load',
'parse',
'format',
'validate',
];
const domainPatterns = [
'user',
'order',
'product',
'session',
'email',
'file',
'db',
'api',
'config',
];
for (const name of exportNames) {
for (const verb of verbs) {
if (name.startsWith(verb) && name.length > verb.length) {
stems.add(name.slice(verb.length).toLowerCase());
}
}
for (const domain of domainPatterns) {
Iif (name.includes(domain)) domains.add(domain);
}
}
Eif (stems.size === 1 || domains.size === 1) return true;
return false;
}
/**
* Adjust fragmentation score based on file classification
*
* @param baseFragmentation The initial fragmentation score
* @param classification The file classification
* @returns The adjusted fragmentation score
*/
export function adjustFragmentationForClassification(
baseFragmentation: number,
classification: FileClassification
): number {
switch (classification) {
case Classification.BOILERPLATE:
return baseFragmentation * 1.5; // Redundant barrels increase fragmentation
case Classification.BARREL:
return 0;
case Classification.TYPE_DEFINITION:
return 0;
case Classification.UTILITY_MODULE:
case Classification.SERVICE:
case Classification.LAMBDA_HANDLER:
case Classification.EMAIL_TEMPLATE:
case Classification.PARSER:
case Classification.NEXTJS_PAGE:
return baseFragmentation * 0.2;
case Classification.SPOKE_MODULE:
return baseFragmentation * 0.15; // Heavily discount intentional monorepo separation
case Classification.COHESIVE_MODULE:
return baseFragmentation * 0.3;
case Classification.MIXED_CONCERNS:
return baseFragmentation;
default:
return baseFragmentation * 0.7;
}
}
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