Pass script source directly instead of via configuration

libraries/scripting/common/src/kotlin/script/experimental/api/scriptCompilation.kt

@@ -8,6 +8,7 @@ package kotlin.script.experimental.api
 interface ScriptCompiler {
 
     suspend fun compile(
+        script: ScriptSource,
         configuration: ScriptCompileConfiguration,
         configurator: ScriptCompilationConfigurator? = null
     ): ResultWithDiagnostics<CompiledScript<*>>

libraries/scripting/common/src/kotlin/script/experimental/host/BasicScriptingHost.kt

@@ -29,9 +29,13 @@ abstract class BasicScriptingHost<ScriptBase : Any>(
 ) {
     open fun <T> runInCoroutineContext(block: suspend CoroutineScope.() -> T): T = runBlocking { block() }
 
-    open fun eval(configuration: ScriptCompileConfiguration, environment: ScriptEvaluationEnvironment): ResultWithDiagnostics<EvaluationResult> =
+    open fun eval(
+        script: ScriptSource,
+        configuration: ScriptCompileConfiguration,
+        environment: ScriptEvaluationEnvironment
+    ): ResultWithDiagnostics<EvaluationResult> =
         runInCoroutineContext {
-            val compiled = compiler.compile(configuration, configurator)
+            val compiled = compiler.compile(script, configuration, configurator)
             when (compiled) {
                 is ResultWithDiagnostics.Failure -> compiled
                 is ResultWithDiagnostics.Success -> {

libraries/scripting/common/src/kotlin/script/experimental/host/scriptHostUtil.kt

@@ -5,11 +5,9 @@
 
 package kotlin.script.experimental.host
 
-import kotlin.script.experimental.api.ScriptSource
-import kotlin.script.experimental.api.ScriptSourceFragments
-import kotlin.script.experimental.api.ScriptSourceNamedFragment
 import java.io.File
 import java.net.URL
+import kotlin.script.experimental.api.*
 
 fun ScriptSourceFragments.isWholeFile(): Boolean = fragments?.isEmpty() ?: true
 
@@ -20,14 +18,15 @@ fun ScriptSource.getScriptText(): String = when {
     else -> throw RuntimeException("unable to get text from null script")
 }
 
-fun ScriptSourceFragments.getMergedScriptText(): String {
-    val originalScriptText = originalSource.getScriptText()
-    return if (isWholeFile()) {
+fun getMergedScriptText(script: ScriptSource, configuration: ScriptCompileConfiguration): String {
+    val originalScriptText = script.getScriptText()
+    val sourceFragments = configuration.getOrNull(ScriptCompileConfigurationParams.scriptSourceFragments)
+    return if (sourceFragments == null || sourceFragments.isWholeFile()) {
         originalScriptText
     } else {
         val sb = StringBuilder(originalScriptText.length)
         var prevFragment: ScriptSourceNamedFragment? = null
-        for (fragment in fragments!!) {
+        for (fragment in sourceFragments!!.fragments!!) {
             val fragmentStartPos = fragment.range.start.absolutePos
             val fragmentEndPos = fragment.range.end.absolutePos
             if (fragmentStartPos == null || fragmentEndPos == null)