From eea3c3624c1b72cf28d10fe501d3ff39aa348809 Mon Sep 17 00:00:00 2001
From: Igor Yakovlev <igor.yakovlev@jetbrains.com>
Date: Mon, 19 Feb 2024 16:58:00 +0100
Subject: [PATCH] [WasmJs] Generate a wrapper that run in Deno

Fixed #KT-65713
---
 .../org/jetbrains/kotlin/backend/wasm/compiler.kt | 15 ++++++++++++---
 compiler/testData/codegen/box/size/add.kt         |  2 +-
 compiler/testData/codegen/box/size/helloWorld.kt  |  2 +-
 .../testData/codegen/box/size/helloWorldDOM.kt    |  2 +-
 .../codegen/box/size/objectsOptimization.kt       |  2 +-
 compiler/testData/codegen/box/size/ok.kt          |  2 +-
 .../codegen/box/size/removeUnusedOverride.kt      |  2 +-
 7 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/compiler.kt b/compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/compiler.kt
index 50c0dcce37a..7cc36478e4f 100644
--- a/compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/compiler.kt
+++ b/compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/compiler.kt
@@ -289,15 +289,16 @@ $jsCodeBodyIndented
     let wasmExports;
 
     const isNodeJs = (typeof process !== 'undefined') && (process.release.name === 'node');
+    const isDeno = !isNodeJs && (typeof Deno !== 'undefined')
     const isStandaloneJsVM =
-        !isNodeJs && (
+        !isDeno && !isNodeJs && (
             typeof d8 !== 'undefined' // V8
             || typeof inIon !== 'undefined' // SpiderMonkey
             || typeof jscOptions !== 'undefined' // JavaScriptCore
         );
-    const isBrowser = !isNodeJs && !isStandaloneJsVM && (typeof window !== 'undefined');
+    const isBrowser = !isNodeJs && !isDeno && !isStandaloneJsVM && (typeof window !== 'undefined');
     
-    if (!isNodeJs && !isStandaloneJsVM && !isBrowser) {
+    if (!isNodeJs && !isDeno && !isStandaloneJsVM && !isBrowser) {
       throw "Supported JS engine not detected";
     }
     
@@ -321,6 +322,14 @@ $imports
         wasmInstance = new WebAssembly.Instance(wasmModule, importObject);
       }
       
+      if (isDeno) {
+        const path = await import(/* webpackIgnore: true */'https://deno.land/std/path/mod.ts');
+        const dirpath = path.dirname(path.fromFileUrl(import.meta.url));
+        const binary = Deno.readFileSync(path.resolve(dirpath, wasmFilePath));
+        const module = await WebAssembly.compile(binary);
+        wasmInstance = await WebAssembly.instantiate(module, importObject);
+      }
+      
       if (isStandaloneJsVM) {
         const wasmBuffer = read(wasmFilePath, 'binary');
         const wasmModule = new WebAssembly.Module(wasmBuffer);
diff --git a/compiler/testData/codegen/box/size/add.kt b/compiler/testData/codegen/box/size/add.kt
index 81d987f87c8..261136e0efc 100644
--- a/compiler/testData/codegen/box/size/add.kt
+++ b/compiler/testData/codegen/box/size/add.kt
@@ -2,7 +2,7 @@
 
 // RUN_THIRD_PARTY_OPTIMIZER
 // WASM_DCE_EXPECTED_OUTPUT_SIZE: wasm  12_773
-// WASM_DCE_EXPECTED_OUTPUT_SIZE: mjs    4_921
+// WASM_DCE_EXPECTED_OUTPUT_SIZE: mjs    5_411
 // WASM_OPT_EXPECTED_OUTPUT_SIZE:        2_640
 
 // FILE: test.kt
diff --git a/compiler/testData/codegen/box/size/helloWorld.kt b/compiler/testData/codegen/box/size/helloWorld.kt
index e2aa6cdbdfa..99ed027c4da 100644
--- a/compiler/testData/codegen/box/size/helloWorld.kt
+++ b/compiler/testData/codegen/box/size/helloWorld.kt
@@ -2,7 +2,7 @@
 
 // RUN_THIRD_PARTY_OPTIMIZER
 // WASM_DCE_EXPECTED_OUTPUT_SIZE: wasm  35_154
-// WASM_DCE_EXPECTED_OUTPUT_SIZE: mjs    4_941
+// WASM_DCE_EXPECTED_OUTPUT_SIZE: mjs    5_431
 // WASM_OPT_EXPECTED_OUTPUT_SIZE:        8_586
 
 fun box(): String {
diff --git a/compiler/testData/codegen/box/size/helloWorldDOM.kt b/compiler/testData/codegen/box/size/helloWorldDOM.kt
index 900a7883157..ea121a628e0 100644
--- a/compiler/testData/codegen/box/size/helloWorldDOM.kt
+++ b/compiler/testData/codegen/box/size/helloWorldDOM.kt
@@ -2,7 +2,7 @@
 
 // RUN_THIRD_PARTY_OPTIMIZER
 // WASM_DCE_EXPECTED_OUTPUT_SIZE: wasm 14_178
-// WASM_DCE_EXPECTED_OUTPUT_SIZE:  mjs  5_478
+// WASM_DCE_EXPECTED_OUTPUT_SIZE:  mjs  5_968
 // WASM_OPT_EXPECTED_OUTPUT_SIZE: 4_317
 
 // FILE: test.kt
diff --git a/compiler/testData/codegen/box/size/objectsOptimization.kt b/compiler/testData/codegen/box/size/objectsOptimization.kt
index 2ae32ff44a9..3ca1c60b0ad 100644
--- a/compiler/testData/codegen/box/size/objectsOptimization.kt
+++ b/compiler/testData/codegen/box/size/objectsOptimization.kt
@@ -2,7 +2,7 @@
 
 // RUN_THIRD_PARTY_OPTIMIZER
 // WASM_DCE_EXPECTED_OUTPUT_SIZE: wasm 17_907
-// WASM_DCE_EXPECTED_OUTPUT_SIZE:  mjs 4_787
+// WASM_DCE_EXPECTED_OUTPUT_SIZE:  mjs 5_277
 // WASM_OPT_EXPECTED_OUTPUT_SIZE: 5_841
 
 object Simple
diff --git a/compiler/testData/codegen/box/size/ok.kt b/compiler/testData/codegen/box/size/ok.kt
index 5157b9fd1fe..649d9093f7a 100644
--- a/compiler/testData/codegen/box/size/ok.kt
+++ b/compiler/testData/codegen/box/size/ok.kt
@@ -2,7 +2,7 @@
 
 // RUN_THIRD_PARTY_OPTIMIZER
 // WASM_DCE_EXPECTED_OUTPUT_SIZE: wasm 12_856
-// WASM_DCE_EXPECTED_OUTPUT_SIZE:  mjs  4_787
+// WASM_DCE_EXPECTED_OUTPUT_SIZE:  mjs  5_277
 // WASM_OPT_EXPECTED_OUTPUT_SIZE: 3_743
 
 fun box() = "OK"
\ No newline at end of file
diff --git a/compiler/testData/codegen/box/size/removeUnusedOverride.kt b/compiler/testData/codegen/box/size/removeUnusedOverride.kt
index 95a095f336c..63f1390002b 100644
--- a/compiler/testData/codegen/box/size/removeUnusedOverride.kt
+++ b/compiler/testData/codegen/box/size/removeUnusedOverride.kt
@@ -3,7 +3,7 @@
 
 // RUN_THIRD_PARTY_OPTIMIZER
 // WASM_DCE_EXPECTED_OUTPUT_SIZE: wasm  13_321
-// WASM_DCE_EXPECTED_OUTPUT_SIZE: mjs    4_787
+// WASM_DCE_EXPECTED_OUTPUT_SIZE: mjs    5_277
 // WASM_OPT_EXPECTED_OUTPUT_SIZE:        3_900
 
 interface I {