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codeql/javascript/ql/src/AngularJS/DuplicateDependency.ql
2019-01-07 10:15:45 +00:00

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/**
* @name Duplicate dependency
* @description Repeated dependency names are redundant for AngularJS dependency injection.
* @kind problem
* @problem.severity warning
* @precision very-high
* @id js/angular/duplicate-dependency
* @tags maintainability
* frameworks/angularjs
*/
import javascript
import semmle.javascript.RestrictedLocations
predicate isRepeatedDependency(AngularJS::InjectableFunction f, string name, ASTNode location) {
exists(int i, int j |
i < j and
exists(f.getDependencyDeclaration(i, name)) and
location = f.getDependencyDeclaration(j, name)
)
}
from AngularJS::InjectableFunction f, ASTNode node, string name
where
isRepeatedDependency(f, name, node) and
not count(f.asFunction().getParameterByName(name)) > 1 // avoid duplicating reports from js/duplicate-parameter-name
select f.asFunction().(FirstLineOf), "This function has a duplicate dependency '$@'.", node, name