From 1cd040fd6afd9fb07d3e0e8a5554148ee4c6c220 Mon Sep 17 00:00:00 2001
From: Ilya Kirillov <ilya.kirillov@jetbrains.com>
Date: Fri, 24 Mar 2023 10:13:22 +0100
Subject: [PATCH] [Analysis API FIR] remove redundant lazy resolve in
 KtFirImportOptimizer for empty imports list

---
 .../analysis/api/fir/components/KtFirImportOptimizer.kt      | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/components/KtFirImportOptimizer.kt b/analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/components/KtFirImportOptimizer.kt
index 567c20ea6b2..48389158d83 100644
--- a/analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/components/KtFirImportOptimizer.kt
+++ b/analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/components/KtFirImportOptimizer.kt
@@ -53,9 +53,10 @@ internal class KtFirImportOptimizer(
         get() = firResolveSession.useSiteFirSession
 
     override fun analyseImports(file: KtFile): KtImportOptimizerResult {
-        val firFile = file.getOrBuildFirFile(firResolveSession).apply { lazyResolveToPhase(FirResolvePhase.BODY_RESOLVE) }
-
         val existingImports = file.importDirectives
+        if (existingImports.isEmpty()) return KtImportOptimizerResult(emptySet())
+
+        val firFile = file.getOrBuildFirFile(firResolveSession).apply { lazyResolveToPhase(FirResolvePhase.BODY_RESOLVE) }
 
         val explicitlyImportedFqNames = existingImports
             .asSequence()