diff --git a/arkoala-arkts/libarkts/native/src/bridges.cc b/arkoala-arkts/libarkts/native/src/bridges.cc
index 1900f813733d455b6ed730955632f580e6ced15c..179792561d9cb7fdd0a99f3cd5080c3c3b8e179d 100644
--- a/arkoala-arkts/libarkts/native/src/bridges.cc
+++ b/arkoala-arkts/libarkts/native/src/bridges.cc
@@ -202,25 +202,6 @@ KNativePointer impl_ClassDefinitionIdent(
 }
 KOALA_INTEROP_2(ClassDefinitionIdent, KNativePointer, KNativePointer, KNativePointer)
 
-KNativePointer impl_CreateClassDefinition1(
-    KNativePointer contextPtr,
-    KNativePointer identPtr,
-    KNativePointerArray bodyPtr,
-    KInt bodyLenT,
-    KInt modifiersT,
-    KInt flagsT
-) {
-    auto context = reinterpret_cast<es2panda_Context*>(contextPtr);
-    auto ident = reinterpret_cast<es2panda_AstNode*>(identPtr);
-    auto body = reinterpret_cast<es2panda_AstNode**>(bodyPtr);
-    auto bodyLen = static_cast<std::size_t>(bodyLenT);
-    auto modifiers = Es2pandaClassDefinitionModifiers(modifiersT);
-    auto flags = Es2pandaModifierFlags(flagsT);
-
-    return GetImpl()->CreateClassDefinition1(context, ident, body, bodyLen, modifiers, flags);
-}
-KOALA_INTEROP_6(CreateClassDefinition1, KNativePointer, KNativePointer, KNativePointer, KNativePointerArray, KInt, KInt, KInt)
-
 KNativePointer impl_UpdateClassDefinition1(
     KNativePointer contextPtr,
     KNativePointer originalPtr,
diff --git a/arkoala-arkts/libarkts/native/src/generated/bridges.cc b/arkoala-arkts/libarkts/native/src/generated/bridges.cc
index 3f7fa2304bbe27893159d11b0c21d5dd1f6f28f2..d05487e2916171a6c2ab93b413936801afa6118a 100644
--- a/arkoala-arkts/libarkts/native/src/generated/bridges.cc
+++ b/arkoala-arkts/libarkts/native/src/generated/bridges.cc
@@ -91,3 +91,16 @@ void impl_BlockStatementSetStatements(KNativePointer context, KNativePointer rec
     GetImpl()->BlockStatementSetStatements(_context, _receiver, _statementList, _statementListLen);
 }
 KOALA_INTEROP_V4(BlockStatementSetStatements, KNativePointer, KNativePointer, KNativePointerArray, KUInt);
+
+KNativePointer impl_CreateClassDefinition1(KNativePointer context, KNativePointer ident, KNativePointerArray body, KUInt bodyLen, KInt modifiers, KInt flags)
+{
+    const auto _context = reinterpret_cast<es2panda_Context*>(context);
+    const auto _ident = reinterpret_cast<es2panda_AstNode*>(ident);
+    const auto _body = reinterpret_cast<es2panda_AstNode**>(body);
+    const auto _bodyLen = static_cast<KUInt>(bodyLen);
+    const auto _modifiers = static_cast<Es2pandaClassDefinitionModifiers>(modifiers);
+    const auto _flags = static_cast<Es2pandaModifierFlags>(flags);
+    const auto result = GetImpl()->CreateClassDefinition1(_context, _ident, _body, _bodyLen, _modifiers, _flags);
+    return result;
+}
+KOALA_INTEROP_6(CreateClassDefinition1, KNativePointer, KNativePointer, KNativePointer, KNativePointerArray, KUInt, KInt, KInt);
diff --git a/arkoala-arkts/libarkts/src/arkts-api/factory/nodeFactory.ts b/arkoala-arkts/libarkts/src/arkts-api/factory/nodeFactory.ts
index ecf51582fe3907ff9bb9a79b9449fb9a256fc5e2..c600bff2f5f475e98fa8fe410336bed5224041be 100644
--- a/arkoala-arkts/libarkts/src/arkts-api/factory/nodeFactory.ts
+++ b/arkoala-arkts/libarkts/src/arkts-api/factory/nodeFactory.ts
@@ -47,8 +47,8 @@ export const factory = {
     createMemberExpression: arkts.MemberExpression.create,
     updateMemberExpression: compose(arkts.MemberExpression.create),
 
-    createEtsScript: arkts.EtsScript.create,
-    updateEtsScript: arkts.EtsScript.update,
+    createEtsScript: arkts.EtsScript.createFromSource,
+    updateEtsScript: arkts.EtsScript.updateByStatements,
 
     createFunctionDeclaration: arkts.FunctionDeclaration.create,
     updateFunctionDeclaration: compose(arkts.FunctionDeclaration.create),
diff --git a/arkoala-arkts/libarkts/src/arkts-api/static/global.ts b/arkoala-arkts/libarkts/src/arkts-api/static/global.ts
index 3b581fd75097d68ff6dde1a448beeb143ab5702e..0b938b96044df5d79f29ade3f66eca44a76ff936 100644
--- a/arkoala-arkts/libarkts/src/arkts-api/static/global.ts
+++ b/arkoala-arkts/libarkts/src/arkts-api/static/global.ts
@@ -19,6 +19,8 @@ import { initEs2panda, Es2pandaNativeModule } from "../../handwritten/Es2pandaNa
 import { initInterop, InteropNativeModule } from "../../InteropNativeModule"
 
 export default class global {
+    public static filePath: string = "./examples/input/main.sts"
+
     private static _config?: KNativePointer
     public static set config(config: KNativePointer) {
         if (global._config !== undefined) {
@@ -29,7 +31,7 @@ export default class global {
     public static get config(): KNativePointer {
         return global._config ?? throwError('Global.config not initialized')
     }
-    public static isInitializedConfig(): boolean {
+    public static configIsInitialized(): boolean {
         return global._config !== undefined
     }
 
diff --git a/arkoala-arkts/libarkts/src/arkts-api/types.ts b/arkoala-arkts/libarkts/src/arkts-api/types.ts
index 9e7eb8bbdd52c711ae0d4643dd8dd32c27b62ec9..23d636b37124aacd01d8374fae8cf03954a42579 100644
--- a/arkoala-arkts/libarkts/src/arkts-api/types.ts
+++ b/arkoala-arkts/libarkts/src/arkts-api/types.ts
@@ -181,46 +181,95 @@ export class UnsupportedNode extends Node {
 export class Config extends ArktsObject {
     constructor(peer: KPtr) {
         super(peer)
+        // TODO: wait for getter from api
+        this.path = ``
     }
+
+    static create(
+        input: readonly string[]
+    ): Config {
+        return new Config(
+            global.es2panda._CreateConfig(input.length, passStringArray(input))
+        )
+    }
+
+    static createDefault(): Config {
+        if (global.configIsInitialized()) {
+            console.warn(`Config already initialized`)
+            return new Config(
+                global.config
+            )
+        }
+        return new Config(
+            global.es2panda._CreateConfig(
+                4,
+                passStringArray(["", "--arktsconfig", "./arktsconfig.json", global.filePath])
+            )
+        )
+    }
+
+    readonly path: string
 }
 
 export class Context extends ArktsObject {
     constructor(peer: KPtr) {
         super(peer)
     }
+
+    // TODO:
+    // static create
+
+    static createFromString(
+        source: string
+    ): Context {
+        if (!global.configIsInitialized()) {
+            throwError(`Config not initialized`)
+        }
+        return new Context(
+            global.es2panda._CreateContextFromString(
+                global.config,
+                passString(source),
+                passString(global.filePath)
+            )
+        )
+    }
 }
 
 export class EtsScript extends Node {
     constructor(peer: KPtr) {
         assertValidPeer(peer, Es2pandaAstNodeType.AST_NODE_TYPE_ETS_MODULE)
-        if (!global.es2panda._IsProgram(global.context, peer)) {
-            throwError('peer expected to be Program')
-        }
         super(peer)
     }
 
-    // TODO: rewrite
-    static create(
+    // TODO:
+    // static create(
+    //     statementList: Statement[]
+    // ): EtsScript {
+    // }
+
+    static fromContext(): EtsScript {
+        return new EtsScript(global.es2panda._ProgramAst(global.es2panda._ContextProgram(global.context)))
+    }
+
+    /**
+     * @deprecated
+     */
+    static createFromSource(
         source: string,
         state: Es2pandaContextState = Es2pandaContextState.ES2PANDA_STATE_PARSED,
     ): EtsScript {
-        if (!global.isInitializedConfig()) {
-            global.config = global.es2panda._CreateConfig(
-                4,
-                passStringArray(["", "--arktsconfig", "./arktsconfig.json", "./examples/input/main.sts"])
-            )
+        if (!global.configIsInitialized()) {
+            global.config = Config.createDefault().peer
         }
-        global.context = global.es2panda._CreateContextFromString(
-            global.config,
-            passString(source),
-            passString("./examples/input/main.sts")
-        )
+        global.context = Context.createFromString(source).peer
         proceedToState(state)
         return new EtsScript(global.es2panda._ProgramAst(global.es2panda._ContextProgram(global.context)))
     }
 
-    // TODO: should create new node
-    static update(
+    /**
+     * @deprecated
+     */
+    static updateByStatements(
         node: EtsScript,
         statements: readonly Node[],
     ): EtsScript {
diff --git a/arkoala-arkts/libarkts/src/arkts-api/utilities/private.ts b/arkoala-arkts/libarkts/src/arkts-api/utilities/private.ts
index e84ae1bb98c3697baa7deb31a198e5343e3ea785..8e64067d830e664385ea6b03c57180d6d90303f7 100644
--- a/arkoala-arkts/libarkts/src/arkts-api/utilities/private.ts
+++ b/arkoala-arkts/libarkts/src/arkts-api/utilities/private.ts
@@ -137,7 +137,7 @@ export function passString(str: string | undefined): string {
     return withString(str, (it: string) => it)
 }
 
-export function passStringArray(strings: string[]): string[] {
+export function passStringArray(strings: readonly string[]): string[] {
     return withStringArray(strings, (it: string[]) => it)
 }
 
diff --git a/arkoala-arkts/libarkts/src/arkts-api/utilities/public.ts b/arkoala-arkts/libarkts/src/arkts-api/utilities/public.ts
index ffb6f8da40f5d6030c0cfbe6456bd28a4ee1fa29..3f80d22cfbe532261d476e2b1816d0abf61891ea 100644
--- a/arkoala-arkts/libarkts/src/arkts-api/utilities/public.ts
+++ b/arkoala-arkts/libarkts/src/arkts-api/utilities/public.ts
@@ -21,32 +21,6 @@ import {
     Es2pandaContextState,
 } from ".."
 
-export function getAstFromContext(): KNativePointer {
-    return global.es2panda._ProgramAst(
-        global.es2panda._ContextProgram(global.context)
-    )
-}
-
-export function createAstDumper(peer: KNativePointer, source: string): KNativePointer {
-    return withString(source, (_source: string) =>
-        global.es2panda._CreateAstDumper(global.context, peer, _source)
-    )
-}
-
-export function createConfig(input: string[]): KNativePointer {
-    return withStringArray(input, (stringArray: string[]) =>
-        global.es2panda._CreateConfig(input.length, stringArray)
-    )
-}
-
-export function createContextFromString(config: KNativePointer, source: string, filename: string): KNativePointer {
-    return withString(source, (sourcePtr: string) =>
-        withString(filename, (filenamePtr: string) =>
-            global.es2panda._CreateContextFromString(config, sourcePtr, filenamePtr)
-        )
-    )
-}
-
 export function proceedToState(state: Es2pandaContextState): void {
     if (state <= global.es2panda._ContextState(global.context)) {
         return
diff --git a/arkoala-arkts/libarkts/src/es2panda.ts b/arkoala-arkts/libarkts/src/es2panda.ts
index 57ed1f57bf353a0c2efdbb28ff610fcdfffa5e90..ae43bd70df87eb2816ea3520324e2009182a0491 100644
--- a/arkoala-arkts/libarkts/src/es2panda.ts
+++ b/arkoala-arkts/libarkts/src/es2panda.ts
@@ -34,7 +34,7 @@ function parseCommandLineArgs() {
 
 function insertPlugin(pluginsByState: Map<arkts.Es2pandaContextState, (ast: arkts.Node) => void>, state: arkts.Es2pandaContextState, dumpAst: boolean): arkts.Node {
     arkts.proceedToState(state)
-    const script = arkts.unpackNode(arkts.getAstFromContext())
+    const script = arkts.EtsScript.fromContext()
     if (script === undefined) {
         throwError(`Failed to receive ast from es2panda`)
     }
@@ -58,11 +58,8 @@ function insertPlugin(pluginsByState: Map<arkts.Es2pandaContextState, (ast: arkt
 function restartCompilerUptoState(ast: arkts.Node, state: arkts.Es2pandaContextState) {
     const srcText = ast.dumpSrc()
     global.es2panda._DestroyContext(global.context)
-    // TODO: disentangle EstScript.create and states, please
-    const afterParsedScript = arkts.EtsScript.create(
-        srcText,
-        state
-    )
+    global.context = arkts.Context.createFromString(srcText).peer
+    arkts.proceedToState(state)
 }
 
 const defaultPandaSdk = "../../../incremental/tools/panda/node_modules/@panda/sdk"
@@ -73,7 +70,9 @@ function invokeWithPlugins(configPath: string, filePath: string, outputPath: str
         `PANDA_SDK_PATH not set, assuming ${defaultPandaSdk}`
     )
     const stdlib = `${sdk}/ets/stdlib`
-    global.config = arkts.createConfig([
+
+    global.filePath = filePath
+    global.config = arkts.Config.create([
         '_',
         '--arktsconfig',
         configPath,
@@ -85,8 +84,8 @@ function invokeWithPlugins(configPath: string, filePath: string, outputPath: str
         stdlib,
         '--output',
         outputPath
-    ])
-    global.context = arkts.createContextFromString(global.config, source, filePath)
+    ]).peer
+    global.context = arkts.Context.createFromString(source).peer
 
     console.log("PLUGINS: ", pluginsByState.size, pluginsByState)
 
@@ -104,7 +103,6 @@ function invokeWithPlugins(configPath: string, filePath: string, outputPath: str
     // BuilderLambdaTransformer
     const checkedTransform = insertPlugin(pluginsByState, arkts.Es2pandaContextState.ES2PANDA_STATE_CHECKED, dumpAst)
     restartCompilerUptoState(checkedTransform, arkts.Es2pandaContextState.ES2PANDA_STATE_BIN_GENERATED)
-
 }
 
 function loadPlugin(configDir: string, jsonPlugin: any) {
@@ -161,4 +159,3 @@ export function main() {
 }
 
 main()
-
diff --git a/arkoala-arkts/libarkts/src/ts-api/factory/nodeFactory.ts b/arkoala-arkts/libarkts/src/ts-api/factory/nodeFactory.ts
index 540af9e82a6f73f0e9b5f83ca1e38a0aa39404f2..ac08be17ed491302e0549f76396c5d31f81bad52 100644
--- a/arkoala-arkts/libarkts/src/ts-api/factory/nodeFactory.ts
+++ b/arkoala-arkts/libarkts/src/ts-api/factory/nodeFactory.ts
@@ -135,7 +135,7 @@ export function createNodeFactory() {
     //     flags: NodeFlags,
     // ): SourceFile;
     function createSourceFile(source: string, state: Es2pandaContextState = Es2pandaContextState.ES2PANDA_STATE_PARSED): SourceFile {
-        const node = arkts.EtsScript.create(source, state)
+        const node = arkts.EtsScript.createFromSource(source, state)
         return new SourceFile(node)
     }
 
@@ -155,7 +155,7 @@ export function createNodeFactory() {
         statements: readonly Statement[]
     ): SourceFile {
         return new SourceFile(
-            arkts.EtsScript.update(
+            arkts.EtsScript.updateByStatements(
                 node.node,
                 passNodeArray(statements)
             )
diff --git a/arkoala-arkts/libarkts/src/ts-api/utilities/public.ts b/arkoala-arkts/libarkts/src/ts-api/utilities/public.ts
index 697b912be43b9a48a749c8a636d2d4695af00f4f..ffc2a6f475e5aec33c1465b097a82b467719baab 100644
--- a/arkoala-arkts/libarkts/src/ts-api/utilities/public.ts
+++ b/arkoala-arkts/libarkts/src/ts-api/utilities/public.ts
@@ -19,12 +19,6 @@ import * as ts from "../."
 import * as arkts from "../../arkts-api"
 import { KNativePointer, withString, withStringArray, withStringResult } from "@koalaui/interop"
 
-import { createConfig } from "../../arkts-api/utilities/public"
-export { createConfig }
-
-import { createContextFromString } from "../../arkts-api/utilities/public"
-export { createContextFromString }
-
 import { proceedToState } from "../../arkts-api/utilities/public"
 export { proceedToState }
 
diff --git a/arkoala-arkts/libarkts/test/arkts-api/expressions/call-expression.test.ts b/arkoala-arkts/libarkts/test/arkts-api/expressions/call-expression.test.ts
index 39f1e9a400d6621b704fab9bd0727bb0a01cddc2..5421f2d512466c70b15d71d77bd25117c49f5b19 100644
--- a/arkoala-arkts/libarkts/test/arkts-api/expressions/call-expression.test.ts
+++ b/arkoala-arkts/libarkts/test/arkts-api/expressions/call-expression.test.ts
@@ -14,9 +14,9 @@ suite(util.basename(__filename), () => {
         console.log('out')
         `
 
-        let script = arkts.EtsScript.create(sample_in)
+        let script = arkts.EtsScript.createFromSource(sample_in)
 
-        script = arkts.EtsScript.update(
+        script = arkts.EtsScript.updateByStatements(
             script,
             [
                 script.statements[0],
diff --git a/arkoala-arkts/libarkts/test/arkts-api/functions/create.test.ts b/arkoala-arkts/libarkts/test/arkts-api/functions/create.test.ts
index 2238c3987e67daa3dca4e80ba1c70e19171ee2f6..10a452f91175de7732c51425e562f6f4fe7dc736 100644
--- a/arkoala-arkts/libarkts/test/arkts-api/functions/create.test.ts
+++ b/arkoala-arkts/libarkts/test/arkts-api/functions/create.test.ts
@@ -17,9 +17,9 @@ suite(util.basename(__filename), () => {
         foo()
         `
 
-        let script = arkts.EtsScript.create(sample_in)
+        let script = arkts.EtsScript.createFromSource(sample_in)
 
-        script = arkts.EtsScript.update(
+        script = arkts.EtsScript.updateByStatements(
             script,
             [
                 script.statements[0],
@@ -98,9 +98,9 @@ suite(util.basename(__filename), () => {
         foo(0)
         `
 
-        let script = arkts.EtsScript.create(sample_in)
+        let script = arkts.EtsScript.createFromSource(sample_in)
 
-        script = arkts.EtsScript.update(
+        script = arkts.EtsScript.updateByStatements(
             script,
             [
                 script.statements[0],
diff --git a/arkoala-arkts/libarkts/test/arkts-api/general/annotations.test.ts b/arkoala-arkts/libarkts/test/arkts-api/general/annotations.test.ts
index d240a48f32d483dfab44ac44ddac12da065ab17f..1f1335b877c023d7004ccf25fec13f8a6b06e193 100644
--- a/arkoala-arkts/libarkts/test/arkts-api/general/annotations.test.ts
+++ b/arkoala-arkts/libarkts/test/arkts-api/general/annotations.test.ts
@@ -11,7 +11,7 @@ suite(util.basename(__filename), () => {
         function foo() {}
         `
 
-        let script = arkts.EtsScript.create(
+        let script = arkts.EtsScript.createFromSource(
             sample_in,
             arkts.Es2pandaContextState.ES2PANDA_STATE_PARSED
         )
diff --git a/arkoala-arkts/libarkts/test/arkts-api/general/basic.test.ts b/arkoala-arkts/libarkts/test/arkts-api/general/basic.test.ts
index e6308b49ad322f8875c89a98d75ae093913e9ac9..fd4ea1c60ddd788381e12afdb544235735ca0c1a 100644
--- a/arkoala-arkts/libarkts/test/arkts-api/general/basic.test.ts
+++ b/arkoala-arkts/libarkts/test/arkts-api/general/basic.test.ts
@@ -8,9 +8,9 @@ suite(util.basename(__filename), () => {
         `
         `
 
-        let script = arkts.EtsScript.create(sample_in)
+        let script = arkts.EtsScript.createFromSource(sample_in)
 
-        script = arkts.EtsScript.update(
+        script = arkts.EtsScript.updateByStatements(
             script,
             [
                 arkts.factory.createExpressionStatement(
diff --git a/arkoala-arkts/libarkts/test/arkts-api/general/recheck.test.ts b/arkoala-arkts/libarkts/test/arkts-api/general/recheck.test.ts
index ec8378f550b224a675e4336a35198a1f3b68d3cb..0e8b46a41c5529e3b6b71b7f3b29366ff1fb9b55 100644
--- a/arkoala-arkts/libarkts/test/arkts-api/general/recheck.test.ts
+++ b/arkoala-arkts/libarkts/test/arkts-api/general/recheck.test.ts
@@ -9,7 +9,7 @@ suite(util.basename(__filename), () => {
         function foo() {}
         `
 
-        let script = arkts.EtsScript.create(
+        let script = arkts.EtsScript.createFromSource(
             sample_in,
             arkts.Es2pandaContextState.ES2PANDA_STATE_PARSED
         )
@@ -20,7 +20,7 @@ suite(util.basename(__filename), () => {
             )
         )
 
-        script = arkts.EtsScript.update(
+        script = arkts.EtsScript.updateByStatements(
             script,
             [
                 expr
diff --git a/arkoala-arkts/libarkts/test/arkts-api/import-export/import.test.ts b/arkoala-arkts/libarkts/test/arkts-api/import-export/import.test.ts
index 1ac4212f0b143f5ece49895b2442b20ac610d27e..7dc62ad09437cb471cf7de677746f3d21976f593 100644
--- a/arkoala-arkts/libarkts/test/arkts-api/import-export/import.test.ts
+++ b/arkoala-arkts/libarkts/test/arkts-api/import-export/import.test.ts
@@ -8,9 +8,9 @@ suite(util.basename(__filename), () => {
         `
         `
 
-        let script = arkts.EtsScript.create(sample_in)
+        let script = arkts.EtsScript.createFromSource(sample_in)
 
-        script = arkts.EtsScript.update(
+        script = arkts.EtsScript.updateByStatements(
             script,
             [
                 arkts.factory.createImportDeclaration(
@@ -48,10 +48,10 @@ suite(util.basename(__filename), () => {
         import { Y } from "./variable"
         `
 
-        let script = arkts.EtsScript.create(sample_in)
+        let script = arkts.EtsScript.createFromSource(sample_in)
         const importDeclaration = script.statements[0] as arkts.EtsImportDeclaration
 
-        script = arkts.EtsScript.update(
+        script = arkts.EtsScript.updateByStatements(
             script,
             [
                 arkts.factory.updateImportDeclaration(
@@ -92,10 +92,10 @@ suite(util.basename(__filename), () => {
         }
         `
 
-        let script = arkts.EtsScript.create(sample_in)
+        let script = arkts.EtsScript.createFromSource(sample_in)
         const importDeclaration = script.statements[0] as arkts.EtsImportDeclaration
 
-        script = arkts.EtsScript.update(
+        script = arkts.EtsScript.updateByStatements(
             script,
             [
                 arkts.factory.updateImportDeclaration(
@@ -143,11 +143,11 @@ suite(util.basename(__filename), () => {
         function main() {}
         `
 
-        let script = arkts.EtsScript.create(sample_in)
+        let script = arkts.EtsScript.createFromSource(sample_in)
         const functionDeclaration: arkts.FunctionDeclaration = script.statements[1] as arkts.FunctionDeclaration
         const scriptFunction: arkts.ScriptFunction = functionDeclaration.scriptFunction
 
-        script = arkts.EtsScript.update(
+        script = arkts.EtsScript.updateByStatements(
             script,
             [
                 script.statements[0],
diff --git a/arkoala-arkts/libarkts/test/test-util.ts b/arkoala-arkts/libarkts/test/test-util.ts
index 434713a001da17732c2d027d57dba9bd2ac03fa3..f247d51f2e199c75431477caabec09ee56df6aed 100644
--- a/arkoala-arkts/libarkts/test/test-util.ts
+++ b/arkoala-arkts/libarkts/test/test-util.ts
@@ -85,7 +85,7 @@ export function ARKTS_TEST_ASSERTION(node: arkts.EtsScript, source: string, stat
     global.es2panda._DestroyContext(global.context)
 
     try {
-        const script = arkts.EtsScript.create(source, finalState)
+        const script = arkts.EtsScript.createFromSource(source, finalState)
         assertEqualsSource(src, script.dumpSrc(), 'Error on SOURCE comparison')
         assert.equal(ast, script.dumpJson(), 'Error on JSON comparison')
         assert.equal(dump, script.dump(), 'Error on DUMP comparison')