TGO Checker Core

@testgorilla/tgo-checker-core — the shared engine and primitives behind TestGorilla's deterministic Angular checkers:

• @testgorilla/tgo-testing-checker — test-canon rules
• @testgorilla/tgo-code-checker — production-code-canon rules

Keeping the engine and — critically — the reporter here means both checkers emit the exact same JSON shape, the contract the tgo-graph PR gate consumes via --import-findings.

What's in here

| Module | Exports | | --- | --- | | types | Severity, RuleCategory, RuleDefinitionBase, RuleViolation, CheckContext<O>, FileResult/CheckResult/SectionResult/GroupedCheckResult, the three *RuleChecker interfaces, FixReplacement/RuleFixer. | | config | RuleConfig, RulesConfigBase, mergeRuleConfigs, getSeverity. | | ast-helpers | TypeScript-compiler helpers: parseFile (cached), visit, getLineNumber, matchCallExpression, getFirstStringArg, isInsideCallOf, clearSourceFileCache. | | project-root | findProjectRoot (walks up to the consumer repo root). | | engine | FileDomain, EngineGroup, runChecks, RunChecksOptions, discoverFiles/categorizeChangedFiles/walkDir/matchesPattern/getFilesForRule/scopeToSrcRoot/filterActiveRules. | | reporter | printReport, printJsonReport, buildJsonReport (+ ReporterOptions, SeverityFilter, GroupByMode, RuleNameResolver). |

The engine is domain-parameterized

runChecks(projectRoot, config, domain, groups, options) is checker-agnostic. Each checker supplies:

• a FileDomain — which file-category keys exist, how a path buckets into them, how files group into report sections, plus any rule/file applicability filtering (e.g. the test checker's --type integration|unit);
• an array of EngineGroups — a rule set plus how to invoke it (grep passes lines; AST/cross-file are guarded; a group can augment the context).

typescript is a peer dependency, so the consumer repo's compiler is used.

nx test tgo-checker-core
nx build tgo-checker-core