Optimize error messages

compiler/lib/src/post_builder.dart

@@ -14,6 +14,7 @@ import 'package:crypto/crypto.dart' show md5;
 import 'package:fair_compiler/src/state_transfer.dart';
 import 'package:path/path.dart' as path;
 import 'package:fair_dart2js/index.dart' as dart2js;
+import 'package:yaml/yaml.dart';
 import 'helper.dart' show FlatCompiler, ModuleNameHelper;
 
 class ArchiveBuilder extends PostProcessBuilder with FlatCompiler {
@@ -56,7 +57,24 @@ class ArchiveBuilder extends PostProcessBuilder with FlatCompiler {
     print('\u001b[33m [Fair Dart2JS] partPath => ${partPath} \u001b[0m');
     if (File(partPath).existsSync()) {
       try {
-        var result = await dart2js.convertFile(partPath, true);
+        var uglify = true;
+
+        var optionsYamlPath =
+            path.join(Directory.current.path, 'fair_compiler_options.yaml');
+
+        var optionYamlFile = File(optionsYamlPath);
+        if (optionYamlFile.existsSync()) {
+          var optionsYaml =
+              loadYaml(optionYamlFile.readAsStringSync()) as YamlMap?;
+
+          if (optionsYaml != null && optionsYaml.containsKey('uglify')) {
+            uglify = optionsYaml['uglify'];
+          }
+        }
+
+        print('\u001b[33m [Fair Dart2JS] uglify option: => $uglify \u001b[0m');
+
+        var result = await dart2js.convertFile(partPath, uglify);
         File(jsName)..writeAsStringSync(result);
       } catch (e) {
         print('[Fair Dart2JS] e => ${e}');

compiler/pubspec.yaml

@@ -22,6 +22,7 @@ dependencies:
   glob: ^2.0.1
   pedantic: ^1.11.1
   http: ^0.13.3
+  yaml: ^3.0.0
 
   fair_annotation: ^2.3.0
 #  fair_annotation:

fair/android/src/main/java/com/wuba/fair/channel/FairFfi.java

@@ -14,6 +14,9 @@
 
 import androidx.annotation.Keep;
 
+import org.json.JSONException;
+import org.json.JSONObject;
+
 /**
  * dart ffi
  */
@@ -66,6 +69,18 @@ public void runTask() {
                 return result[0].toString();
             }
         }
+        try {
+            //when an exception occurs, return the function name
+            JSONObject jsonObject = new JSONObject(args);
+            if (jsonObject.has("args")) {
+                JSONObject funObject = new JSONObject(jsonObject.optString("args"));
+                if(funObject.has("funcName")){
+                    return String.format("Runtime error while invoke JavaScript method:%s()", funObject.optString("funcName"));
+                }
+            }
+        } catch (JSONException e) {
+            e.printStackTrace();
+        }
 
         return "jsAppObj is null";
     }

fair/android/src/main/java/com/wuba/fair/core/FairV8JsLoader.java

@@ -11,6 +11,7 @@
 import com.eclipsesource.v8.V8Array;
 import com.eclipsesource.v8.V8Function;
 import com.eclipsesource.v8.V8Object;
+import com.eclipsesource.v8.V8ScriptCompilationException;
 import com.wuba.fair.FairPlugin;
 import com.wuba.fair.callback.JsResultCallback;
 import com.wuba.fair.constant.Constant;
@@ -125,6 +126,22 @@ public void loadMainJs(Object arguments, JsResultCallback<String> callback) {
             getV8JsExecutor().loadJS(jsName, jsLocalPath, callback);
         } catch (Exception e) {
             e.printStackTrace();
+            //avoid loading all the time
+            if (callback != null) {
+                try {
+                    JSONObject errorResult = new JSONObject();
+                    errorResult.put("status","error");
+                    if (e instanceof V8ScriptCompilationException){
+                        errorResult.put("errorInfo",e.toString());
+                        errorResult.put("lineNumber",((V8ScriptCompilationException) e).getLineNumber());
+                    }else{
+                        errorResult.put("errorInfo",e.getLocalizedMessage());
+                    }
+                    callback.call(errorResult.toString());
+                } catch (JSONException ex) {
+                    callback.call("result");
+                }
+            }
         }
     }
 

fair/android/src/main/java/com/wuba/fair/thread/FairTask.java

@@ -11,7 +11,6 @@ public abstract class FairTask implements Runnable {
 
     @Override
     public void run() {
-        FairLogger.d("当前的线程名称" + Thread.currentThread());
 
         runTask();
 

fair/ios/Classes/FairDynamicJSPlugin/FairDartBridge.m

@@ -69,6 +69,24 @@ - (void)setDartListener {
         if ([method isEqualToString:@"loadMainJs"]) {
             if ([strongSelf.delegate respondsToSelector:@selector(injectionJSScriptWtihJSScript: callback:)]) {
                 [strongSelf.delegate injectionJSScriptWtihJSScript:model.path callback:^(id result, NSError *error) {
+                    JSValue *value = result;
+                    if (value && [value isKindOfClass:[JSValue class]]) {
+                        NSString *str = value.toString;
+                        if([str isEqualToString:@"undefined"]){
+                            NSMutableDictionary *result=[NSMutableDictionary dictionary];
+                            result[@"status"] = @"error";
+                            result[@"errorInfo"]=@"load JavaScript error";
+                            result[@"lineNumber"]=@-1;
+
+                            NSError *error = nil;
+                            NSData *jsonData = [NSJSONSerialization dataWithJSONObject:result options:NSJSONWritingPrettyPrinted error:&error];
+                            NSString *jsonStr = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
+
+
+                            callback(jsonStr);
+                            return;
+                        }
+                    }
                     callback(@"success");
                 }];
             }
@@ -163,6 +181,23 @@ - (const char *)executeScriptSyncImpl:(char *)args
     }
     NSString *result = [NSString stringWithFormat:@"%@", obj.toString];
     FairLog(@"result:%@", result);
+    if([result isEqualToString:@"undefined"]){
+        //取args中的funcName字段
+        //arg ===> "{\"pageName\":\"null#0\",\"type\":\"method\",\"args\":{\"funcName\":\"_getAuth\",\"args\":null}}"
+        NSString *str = [NSString stringWithUTF8String:args];
+        NSData *jsonData = [str dataUsingEncoding:NSUTF8StringEncoding];
+
+        NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:nil];
+
+        NSDictionary *args = dic[@"args"];
+        NSString *funcName = args[@"funcName"];
+
+        FairLog(@"invoke funcName:%@",funcName);
+
+        NSString *errorResult = [NSString stringWithFormat:@"Runtime error while invoke JavaScript method:%@()", funcName];
+
+        return errorResult.UTF8String;
+    }
     return result.UTF8String;
 }
 

fair/lib/src/internal/bind_data.dart

@@ -68,8 +68,12 @@ class BindingData {
       } else {
         result = _functions?['runtimeInvokeMethodSync']?.call(funcName);
       }
-      var value = jsonDecode(result);
-      return value['result']['result'];
+      try {
+        var value = jsonDecode(result);
+        return value['result']['result'];
+      } catch (e) {
+        throw RuntimeError(errorMsg: result);
+      }
     } else {
       return _functions?[funcName];
     }
@@ -158,3 +162,14 @@ class BindingData {
     _functions?.clear();
   }
 }
+
+class RuntimeError extends Error {
+  final String errorMsg;
+
+  RuntimeError({required this.errorMsg});
+
+  @override
+  String toString() {
+    return errorMsg;
+  }
+}

fair/lib/src/internal/error_tips.dart

@@ -4,8 +4,8 @@
  * found in the LICENSE file.
  */
 
+import 'package:fair/src/internal/stack_trace_detail.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/widgets.dart';
 
 import 'warning_dialog_widget.dart';
 
@@ -15,9 +15,21 @@ class WarningWidget extends StatelessWidget {
   final String? solution;
   final dynamic error;
   final BuildContext?  parentContext;
+  final String? stackTrace;
+  final Map? errorBlock;
+  final List<int>? highlightLines;
 
 
-  const WarningWidget({Key? key, this.name, this.url, this.error, this.solution,this.parentContext})
+  const WarningWidget(
+      {Key? key,
+      this.name,
+      this.url,
+      this.error,
+      this.solution,
+      this.parentContext,
+      this.stackTrace,
+      this.errorBlock,
+      this.highlightLines})
       : super(key: key);
 
   @override
@@ -65,6 +77,20 @@ class WarningWidget extends StatelessWidget {
             cancelFun: (){
               Navigator.pop(parentContext!);
             },
+            stackTraceVisible: stackTrace != null,
+            viewStackTrace: () {
+              Navigator.push(
+                  parentContext!,
+                  MaterialPageRoute(
+                      builder: (context) =>
+                          StackTraceDetailPage(
+                            stackTrace: stackTrace!,
+                            name: name,
+                            errorJson: errorBlock,
+                            error: error,
+                            highlightLines: highlightLines,
+                          )));
+            },
           );
         }
     );