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JS: Describe 1-step aliasing rule

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Asger F
2024-02-13 09:29:15 +01:00
parent baa3c35d6f
commit 543e183d99
1 changed files with 8 additions and 0 deletions
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javascript/ql/lib/semmle/javascript/endpoints/EndpointNaming.qll
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@@ -355,6 +355,14 @@ predicate functionHasPrimaryName(DataFlow::FunctionNode function, string package
/**
* Holds if `(aliasPackage, aliasName)` is an alias for `(primaryPackage, primaryName)`,
* defined at `aliasDef`.
*
* Only the last component of an access path is reported as an alias, the prefix always
* uses the primary name for that access path. The aliases for the prefix are reported
* as separate tuples.
*
* For example, we might report that `a.b.C` is an alias for `a.b.c`, and that `a.B` is an alias for `a.b`.
* By combining the two aliasing facts, we may conclude that `a.B.C` is an alias for `a.b.c`, but this fact is not
* reported separately.
*/
predicate aliasDefinition(
string primaryPackage, string primaryName, string aliasPackage, string aliasName,