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JS: Unfold local type aliases in getAnUnderlyingType

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Asger F
2025-03-10 16:05:17 +01:00
parent 91e9b23cf7
commit f7d2abf3e3
2 changed files with 12 additions and 0 deletions
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11
javascript/ql/lib/semmle/javascript/TypeScript.qll
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@@ -773,6 +773,17 @@ class LocalTypeAccess extends @local_type_access, TypeAccess, Identifier, Lexica
*/
LocalTypeName getLocalTypeName() { result.getAnAccess() = this }
private TypeAliasDeclaration getAlias() {
this.getLocalTypeName().getADeclaration() = result.getIdentifier()
}
override TypeExpr getAnUnderlyingType() {
result = this.getAlias().getDefinition().getAnUnderlyingType()
or
not exists(this.getAlias()) and
result = this
}
override string getAPrimaryQlClass() { result = "LocalTypeAccess" }
}

1
javascript/ql/test/library-tests/frameworks/HTTP/RemoteRequestInput.expected
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@@ -1,6 +1,7 @@
| connect.js:6:5:6:11 | req.url | url |
| connect.js:7:5:7:21 | req.cookies.get() | cookie |
| express-typed.ts:4:5:4:12 | req.body | body |
| express-typed.ts:10:5:10:12 | req.body | body |
| express.js:12:5:12:19 | req.param("p1") | parameter |
| express.js:13:5:13:17 | req.params.p2 | parameter |
| express.js:14:5:14:16 | req.query.p3 | parameter |