tryResolveCall¶

Attempts to resolve the call for the given KtResolvableCall.

Usage Example:¶

context(session: KaSession)
fun findResolutionDiagnostic(expression: KtCallExpression): KaDiagnostic? {
  val attempt = expression.tryResolveCall() ?: return null
  return attempt.errors.firstOrNull()?.diagnostic
}

Returns a KaCallResolutionAttempt, or null when there is no call to resolve: the element is not call-shaped, or its reference resolves to something non-callable, such as a qualifier, an import, or a type. Broken code can end up here as well.

A non-null result describes the outcome of an actual resolution. Check it with errors or isSuccessful rather than with a type check, which only covers simple attempts. A reported error may carry an empty candidateCalls list.

See References and Calls for a top-level overview.

See also¶

• resolveSuccessfulCall

Attempts to resolve the given KtForExpression to a KaForLoopCallResolutionAttempt containing the individual resolution results for each desugared operator call (iterator, hasNext, next).

This is a specialized counterpart of KtResolvableCall.tryResolveCall focused specifically on for loops.

See also¶

• KtForExpression.resolveSuccessfulCall
• KtResolvableCall.tryResolveCall

Attempts to resolve the given KtPropertyDelegate to a KaDelegatedPropertyCallResolutionAttempt containing the individual resolution results for each desugared operator call (getValue, setValue, provideDelegate).

This is a specialized counterpart of KtResolvableCall.tryResolveCall focused specifically on delegated properties.

See also¶

• KtPropertyDelegate.resolveSuccessfulCall
• KtResolvableCall.tryResolveCall