* feat(resolution): tsconfig path aliases + re-export chain following
Two related correctness improvements that unlock accurate import
resolution on modern JS/TS codebases.
1) tsconfig/jsconfig path aliases.
The resolver previously had a hard-coded list of common aliases
(@/, ~/, src/, app/) and ignored any project-defined paths from
tsconfig.json compilerOptions.paths — which means every import
through @components/Foo, @lib/utils, etc. on Vite/Next/Nuxt/Nest
projects silently failed to resolve. Adds src/resolution/path-
aliases.ts that reads tsconfig.json (and falls back to jsconfig.json),
honours baseUrl, supports the * wildcard, and respects the priority
order of multiple replacement targets per alias. JSONC tolerant
(strips comments + trailing commas, common in the wild). The new
ResolutionContext.getProjectAliases() lazily loads + caches the
result; resolveAliasedImport consults it before the legacy fallback
list.
Verified live on a synthetic project with @utils/* and @lib custom
aliases: both resolved to the correct files and produced edges,
unresolved_refs empty.
2) Re-export chain following.
`import { Foo } from './barrel'` where barrel.ts only re-exports
(`export { Foo } from './real'` or `export * from './real'`) used
to fail because the resolver only looked for declarations IN the
resolved file — it never followed the export chain to the actual
definition. Adds extractReExports() (named + wildcard + as-rename
forms), a per-file getReExports() context method, and a recursive
findExportedSymbol() helper with depth cap (8) and visited-set
cycle protection. resolveViaImport now uses it whenever the symbol
isn't directly declared in the imported file.
Verified live on a synthetic 3-hop chain (main → all.ts wildcard →
index.ts named → auth.ts declaration): signIn resolved correctly,
unresolved_refs empty.
Full test suite: 380 passed, 0 failed.
* fix(resolution): address reviewer findings — isExternalImport bypass, JSONC strings, comment stripping, optional context method
Five fixes from independent semantic review:
- isExternalImport now consults context.getProjectAliases() before
the bare-specifier heuristic. Without this, custom prefixes like
'@components/*' from tsconfig.paths were classified as npm and
resolveAliasedImport never even ran. Adds a context parameter
(optional, for backward compat with mock contexts).
- stripJsonc rewritten as a string-aware state machine. The previous
regex-only version corrupted any URL embedded in a JSON string
value ('https://cdn.example.com' lost everything after '//').
- extractReExports now strips JS line+block comments from content
before applying the regex, so a commented-out 'export { x } from
...' no longer creates a phantom re-export edge. New
stripJsComments helper preserves string literals (single, double,
template) so '//' inside a string stays intact.
- ResolutionContext.getProjectAliases() made optional so existing
mock contexts in __tests__/resolution.test.ts (which TypeScript
doesn't type-check because tsconfig excludes __tests__) don't
throw at runtime when resolveAliasedImport hits them. Caller
uses ?.
- Two new integration tests in __tests__/resolution.test.ts:
* Path-alias resolution with name-collision: two pickMe() in
different dirs, only the @utils-aliased one should be the
call target. Asserts via getCallers on each candidate node.
* No-tsconfig fallback: relative import still produces the call
edge.
Full test suite: 832 passed (was 380; the increase is from the
biomarkers + LLM hooks that ship via parent branches).
* fix(resolution): allow re-export rename chains past the pre-filter
The fast pre-filter in resolveOne() bails when no symbol with the
reference name exists project-wide, which is incompatible with the
new chain-following code: a renamed re-export (`import { login }
from './barrel'` where the barrel does `export { signIn as login }
from './auth'`) intentionally calls a name that has no project-wide
declaration. The chain finds the renamed upstream symbol — but only
if resolution is allowed to run.
Add an import-mapping escape so the pre-filter only bails when the
ref also doesn't match any local import. Adds two tests covering the
3-hop wildcard chain and the named-rename branch.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Colby McHenry <me@colbymchenry.com>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
d151c0f922