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Overview

The Analysis API answers two independent questions about resolvable Kotlin PSI:

  • What declaration does this PSI element refer to? — the symbol the element literally points to. Read Resolving Symbols.
  • How is this expression executed at this site? — the callable selected at the call site, with receivers, type arguments, and value arguments. Read Resolving Calls.

Resolution Fundamentals introduces both views together, the KtResolvable / KtResolvableCall marker interfaces, and the difference between the "plain" (resolveSuccessfulSymbol / resolveSuccessfulCall) and "try" (tryResolveSymbols / tryResolveCall) forms.

If you need every overload the compiler considered at a call site — including ones it rejected — see Resolution Candidates.

If you are upgrading code that uses the older KtReference.mainReference.resolveTo...() / KtElement.resolveToCall(): KaCallInfo? API, see Migrating from the Legacy Resolution API.

Warning

The resolution API is annotated @KaExperimentalApi and may change between versions until it stabilizes. Every entry point requires @OptIn(KaExperimentalApi::class).