allow yul deployment

libs/remix-core-plugin/src/lib/compiler-metadata.ts

@@ -87,7 +87,7 @@ export class CompilerMetadata extends Plugin {
 
     let parsedMetadata
     try {
-      parsedMetadata = JSON.parse(contract.object.metadata)
+      parsedMetadata = contract.object && contract.object.metadata ? JSON.parse(contract.object.metadata) : null
     } catch (e) {
       console.log(e)
     }

libs/remix-core-plugin/src/lib/editor-context-listener.ts

@@ -92,7 +92,7 @@ export class EditorContextListener extends Plugin {
     this._stopHighlighting()
     this.currentPosition = cursorPosition
     this.currentFile = file
-    if (compilationResult && compilationResult.data && compilationResult.data.sources[file]) {
+    if (compilationResult && compilationResult.data && compilationResult.data.sources && compilationResult.data.sources[file]) {
       const nodes = sourceMappingDecoder.nodesAtPosition(null, cursorPosition, compilationResult.data.sources[file])
       this.nodes = nodes
       if (nodes && nodes.length && nodes[nodes.length - 1]) {

libs/remix-ui/run-tab/src/lib/actions/events.ts

@@ -95,7 +95,6 @@ export const setupEvents = (plugin: RunTab, dispatch: React.Dispatch<any>) => {
 const broadcastCompilationResult = async (plugin: RunTab, dispatch: React.Dispatch<any>, file, source, languageVersion, data, input?) => {
   // TODO check whether the tab is configured
   const compiler = new CompilerAbstract(languageVersion, data, source, input)
-
   plugin.compilersArtefacts[languageVersion] = compiler
   plugin.compilersArtefacts.__last = compiler
 
@@ -103,9 +102,8 @@ const broadcastCompilationResult = async (plugin: RunTab, dispatch: React.Dispat
     return { name: languageVersion, alias: contract.name, file: contract.file, compiler }
   })
   const index = contracts.findIndex(contract => contract.alias === plugin.REACT_API.contracts.currentContract)
-
   if ((index < 0) && (contracts.length > 0)) dispatch(setCurrentContract(contracts[0].alias))
-  const isUpgradeable = await plugin.call('openzeppelin-proxy', 'isConcerned', data.sources[file] ? data.sources[file].ast : {})
+  const isUpgradeable = await plugin.call('openzeppelin-proxy', 'isConcerned', data.sources && data.sources[file] ? data.sources[file].ast : {})
 
   if (isUpgradeable) {
     const options = await plugin.call('openzeppelin-proxy', 'getProxyOptions', data, file)