From bd1dd92cf8fb353f97d577e52b8f9d37132ef082 Mon Sep 17 00:00:00 2001
From: Rory <roryelrick@qantas.com.au>
Date: Sun, 22 Aug 2021 09:49:52 +1000
Subject: [PATCH] Allow compiler language selection via query parameter, fixes
 #1489

---
 apps/remix-ide-e2e/src/tests/url.spec.ts               |  3 ++-
 .../solidity-compiler/src/lib/compiler-container.tsx   |  9 ++++++---
 .../solidity-compiler/src/lib/logic/compileTabLogic.ts | 10 ++++++++++
 3 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/apps/remix-ide-e2e/src/tests/url.spec.ts b/apps/remix-ide-e2e/src/tests/url.spec.ts
index 9d7e8e323e..13227238f7 100644
--- a/apps/remix-ide-e2e/src/tests/url.spec.ts
+++ b/apps/remix-ide-e2e/src/tests/url.spec.ts
@@ -77,12 +77,13 @@ module.exports = {
   'Should load using URL compiler params': function (browser: NightwatchBrowser) {
     browser
       .pause(5000)
-      .url('http://127.0.0.1:8080/#optimize=true&runs=300&autoCompile=true&evmVersion=istanbul&version=soljson-v0.7.4+commit.3f05b770.js')
+      .url('http://127.0.0.1:8080/#optimize=true&runs=300&autoCompile=true&evmVersion=istanbul&version=soljson-v0.7.4+commit.3f05b770.js&language=Yul')
       .refresh()
       .pause(5000)
       .clickLaunchIcon('solidity')
       .assert.containsText('#versionSelector option[data-id="selected"]', '0.7.4+commit.3f05b770')
       .assert.containsText('#evmVersionSelector option[data-id="selected"]', 'istanbul')
+      .assert.containsText('#compilierLanguageSelector option[data-id="selected"]', 'Yul')
       .verify.elementPresent('#optimize:checked')
       .verify.elementPresent('#autoCompile:checked')
       .verify.attributeEquals('#runs', 'value', '300')
diff --git a/libs/remix-ui/solidity-compiler/src/lib/compiler-container.tsx b/libs/remix-ui/solidity-compiler/src/lib/compiler-container.tsx
index eabccbd8a8..f1b88e90a1 100644
--- a/libs/remix-ui/solidity-compiler/src/lib/compiler-container.tsx
+++ b/libs/remix-ui/solidity-compiler/src/lib/compiler-container.tsx
@@ -7,6 +7,7 @@ import { canUseWorker, baseURLBin, baseURLWasm, urlFromVersion, pathToURL, promi
 import { compilerReducer, compilerInitialState } from './reducers/compiler'
 import { resetEditorMode, listenToEvents } from './actions/compiler'
 import { OverlayTrigger, Tooltip } from 'react-bootstrap' // eslint-disable-line
+import { helpers } from '@remix-project/remix-lib'
 
 import './css/style.css'
 
@@ -74,6 +75,7 @@ export const CompilerContainer = (props: CompilerContainerProps) => {
           const optimize = params.optimize
           const runs = params.runs as string
           const evmVersion = params.evmVersion
+          const language = helpers.compiler.getValidLanguage(params.language)
 
           return {
             ...prevState,
@@ -82,7 +84,8 @@ export const CompilerContainer = (props: CompilerContainerProps) => {
             includeNightlies: includeNightlies,
             optimize: optimize,
             runs: runs,
-            evmVersion: (evmVersion !== null) && (evmVersion !== 'null') && (evmVersion !== undefined) && (evmVersion !== 'undefined') ? evmVersion : 'default'
+            evmVersion: (evmVersion !== null) && (evmVersion !== 'null') && (evmVersion !== undefined) && (evmVersion !== 'undefined') ? evmVersion : 'default',
+            language: (language !== null) ? language : 'Solidity'
           }
         })
       }
@@ -537,8 +540,8 @@ export const CompilerContainer = (props: CompilerContainerProps) => {
           <div className="mb-2">
             <label className="remixui_compilerLabel form-check-label" htmlFor="compilierLanguageSelector">Language</label>
             <select onChange={(e) => handleLanguageChange(e.target.value)} value={state.language} className="custom-select" id="compilierLanguageSelector" title="Available since v0.5.7">
-              <option value='Solidity'>Solidity</option>
-              <option value='Yul'>Yul</option>
+              <option data-id={state.language === 'Solidity' ? 'selected' : ''} value='Solidity'>Solidity</option>
+              <option data-id={state.language === 'Yul' ? 'selected' : ''} value='Yul'>Yul</option>
             </select>
           </div>
           <div className="mb-2">
diff --git a/libs/remix-ui/solidity-compiler/src/lib/logic/compileTabLogic.ts b/libs/remix-ui/solidity-compiler/src/lib/logic/compileTabLogic.ts
index c938cdb633..db24685e3a 100644
--- a/libs/remix-ui/solidity-compiler/src/lib/logic/compileTabLogic.ts
+++ b/libs/remix-ui/solidity-compiler/src/lib/logic/compileTabLogic.ts
@@ -15,6 +15,7 @@ export class CompileTabLogic {
   public optimize
   public runs
   public evmVersion: string
+  public language: string
   public compilerImport
   public event
 
@@ -39,6 +40,13 @@ export class CompileTabLogic {
     }
     this.api.setCompilerParameters({ evmVersion: this.evmVersion })
     this.compiler.set('evmVersion', this.evmVersion)
+
+    this.language = this.api.getParameters().language
+    if(this.language === 'undefined' || this.language === 'null' || !this.language) {
+      this.language = null
+    }
+    this.api.setParameters({ 'language': this.language })
+    this.compiler.set('language', this.language)
   }
 
   setOptimize (newOptimizeValue) {
@@ -68,6 +76,8 @@ export class CompileTabLogic {
    * @params lang {'Solidity' | 'Yul'} ...
    */
   setLanguage (lang) {
+    this.language = lang;
+    this.api.setParameters({ language: lang })
     this.compiler.set('language', lang)
   }