类的构造函数中包含widget参数，编译报错，求大佬帮忙看下 #86
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写个demo工程发出来 |
见附件，在main.dart中增加了一个类D，里面添加了一个含Widget参数的构造函数。main方法里面把不相关的逻辑都注释掉了。aop_impl.dart里面只保留了D的构造函数call注解。 |
This was referenced Mar 9, 2021
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Resolved, see: XianyuTech/sdk@bfa0dd1
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发现只要有类的无名构造函数中含有widget就无法编译通过。比如下面D类，在调用的时候有给widget传值，编译就会报错，把widget赋值给去掉，就可以正常插入代码，并成功打印。
Unhandled exception:
Crash when compiling null,
at character offset null:
NoSuchMethodError: The getter 'line' was called on null.
Receiver: null
Tried calling: line
#0 Object.noSuchMethod (dart:core-patch/object_patch.dart:51:5)
#1 _WidgetCallSiteTransformer._constructLocation (package:kernel/transformations/track_widget_constructor_locations.dart:164:59)
#2 _WidgetCallSiteTransformer._computeLocation (package:kernel/transformations/track_widget_constructor_locations.dart:272:30)
#3 _WidgetCallSiteTransformer._addLocationArgument (package:kernel/transformations/track_widget_constructor_locations.dart:223:7)
#4 _WidgetCallSiteTransformer.visitConstructorInvocation (package:kernel/transformations/track_widget_constructor_locations.dart:238:5)
#5 ConstructorInvocation.accept (package:kernel/ast.dart:4204:44)
#6 MapEntry.transformChildren (package:kernel/ast.dart:5504:21)
#7 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#8 TreeVisitor.visitMapEntry (package:kernel/visitor.dart:265:37)
#9 MapEntry.accept (package:kernel/ast.dart:5491:38)
#10 transformList (package:kernel/ast.dart:9699:27)
#11 MapLiteral.transformChildren (package:kernel/ast.dart:5454:5)
#12 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#13 TreeVisitor.defaultExpression (package:kernel/visitor.dart:144:43)
#14 TreeVisitor.visitMapLiteral (package:kernel/visitor.dart:186:41)
#15 MapLiteral.accept (package:kernel/ast.dart:5441:44)
#16 transformList (package:kernel/ast.dart:9699:27)
#17 Arguments.transformChildren (package:kernel/ast.dart:3813:5)
#18 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#19 TreeVisitor.visitArguments (package:kernel/visitor.dart:261:39)
#20 Arguments.accept (package:kernel/ast.dart:3803:38)
#21 ConstructorInvocation.transformChildren (package:kernel/ast.dart:4215:29)
#22 _WidgetCallSiteTransformer.visitConstructorInvocation (package:kernel/transformations/track_widget_constructor_locations.dart:230:10)
#23 ConstructorInvocation.accept (package:kernel/ast.dart:4204:44)
#24 transformList (package:kernel/ast.dart:9699:27)
#25 Arguments.transformChildren (package:kernel/ast.dart:3813:5)
#26 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#27 TreeVisitor.visitArguments (package:kernel/visitor.dart:261:39)
#28 Arguments.accept (package:kernel/ast.dart:3803:38)
#29 StaticInvocation.transformChildren (package:kernel/ast.dart:4149:29)
#30 _WidgetCallSiteTransformer.visitStaticInvocation (package:kernel/transformations/track_widget_constructor_locations.dart:202:10)
#31 StaticInvocation.accept (package:kernel/ast.dart:4138:44)
#32 VariableDeclaration.transformChildren (package:kernel/ast.dart:7001:33)
#33 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#34 TreeVisitor.defaultStatement (package:kernel/visitor.dart:203:41)
#35 TreeVisitor.visitVariableDeclaration (package:kernel/visitor.dart:225:7)
#36 VariableDeclaration.accept (package:kernel/ast.dart:6987:43)
#37 transformList (package:kernel/ast.dart:9699:27)
#38 Block.transformChildren (package:kernel/ast.dart:5881:5)
#39 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#40 TreeVisitor.defaultStatement (package:kernel/visitor.dart:203:41)
#41 TreeVisitor.visitBlock (package:kernel/visitor.dart:206:31)
#42 Block.accept (package:kernel/ast.dart:5873:43)
#43 FunctionNode.transformChildren (package:kernel/ast.dart:2948:19)
#44 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#45 TreeVisitor.visitFunctionNode (package:kernel/visitor.dart:260:45)
#46 FunctionNode.accept (package:kernel/ast.dart:2932:38)
#47 Procedure.transformChildren (package:kernel/ast.dart:2436:27)
#48 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#49 _WidgetCallSiteTransformer.visitProcedure (package:kernel/transformations/track_widget_constructor_locations.dart:193:12)
#50 Procedure.accept (package:kernel/ast.dart:2423:40)
#51 transformList (package:kernel/ast.dart:9699:27)
#52 Library.transformChildren (package:kernel/ast.dart:627:5)
#53 WidgetCreatorTracker.transform (package:kernel/transformations/track_widget_constructor_locations.dart:504:15)
#54 FlutterTarget.performPreConstantEvaluationTransformations (package:vm/target/flutter.dart:82:22)
#55 KernelTarget.runBuildTransformations (package:front_end/src/fasta/kernel/kernel_target.dart:1093:19)
#56 KernelTarget.buildComponent. (package:front_end/src/fasta/kernel/kernel_target.dart:390:7)
#57 KernelTarget.buildComponent. (package:front_end/src/fasta/kernel/kernel_target.dart)
#58 withCrashReporting (package:front_end/src/fasta/crash.dart:122:24)
#59 KernelTarget.buildComponent (package:front_end/src/fasta/kernel/kernel_target.dart:380:12)
#60 generateKernelInternal. (package:front_end/src/kernel_generator_impl.dart:177:38)
#61 generateKernelInternal. (package:front_end/src/kernel_generator_impl.dart)
#62 withCrashReporting (package:front_end/src/fasta/crash.dart:122:24)
#63 generateKernelInternal (package:front_end/src/kernel_generator_impl.dart:73:10)
#64 kernelForProgramInternal. (package:front_end/src/api_prototype/kernel_generator.dart:61:35)
#65 CompilerContext.runWithOptions. (package:front_end/src/fasta/compiler_context.dart:135:20)
#66 CompilerContext.runWithOptions. (package:front_end/src/fasta/compiler_context.dart)
#67 CompilerContext.runInContext.. (package:front_end/src/fasta/compiler_context.dart:123:46)
#68 new Future.sync (dart:async/future.dart:223:31)
#69 CompilerContext.runInContext. (package:front_end/src/fasta/compiler_context.dart:123:19)
#70 _rootRun (dart:async/zone.dart:1190:13)
#71 _CustomZone.run (dart:async/zone.dart:1093:19)
#72 _runZoned (dart:async/zone.dart:1630:10)
#73 runZoned (dart:async/zone.dart:1550:10)
#74 CompilerContext.runInContext (package:front_end/src/fasta/compiler_context.dart:122:12)
#75 CompilerContext.runWithOptions (package:front_end/src/fasta/compiler_context.dart:133:10)
#76 kernelForProgramInternal (package:front_end/src/api_prototype/kernel_generator.dart:60:32)
#77 kernelForProgram (package:front_end/src/api_prototype/kernel_generator.dart:52:17)
#78 compileToKernel (package:vm/kernel_front_end.dart:381:28)
#79 FrontendCompiler.compile. (package:frontend_server/frontend_server.dart:542:54)
#80 new Future. (dart:async/future.dart:175:37)
#81 _rootRun (dart:async/zone.dart:1182:47)
#82 _CustomZone.run (dart:async/zone.dart:1093:19)
#83 _CustomZone.runGuarded (dart:async/zone.dart:997:7)
#84 _CustomZone.bindCallbackGuarded. (dart:async/zone.dart:1037:23)
#85 _rootRun (dart:async/zone.dart:1190:13)
#86 _CustomZone.run (dart:async/zone.dart:1093:19)
#87 _CustomZone.bindCallback. (dart:async/zone.dart:1021:23)
#88 Timer._createTimer. (dart:async-patch/timer_patch.dart:18:15)
#89 _Timer._runTimers (dart:isolate-patch/timer_impl.dart:397:19)
#90 _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:428:5)
#91 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)
#0 Object.noSuchMethod (dart:core-patch/object_patch.dart:51:5)
#1 _WidgetCallSiteTransformer._constructLocation (package:kernel/transformations/track_widget_constructor_locations.dart:164:59)
#2 _WidgetCallSiteTransformer._computeLocation (package:kernel/transformations/track_widget_constructor_locations.dart:272:30)
#3 _WidgetCallSiteTransformer._addLocationArgument (package:kernel/transformations/track_widget_constructor_locations.dart:223:7)
#4 _WidgetCallSiteTransformer.visitConstructorInvocation (package:kernel/transformations/track_widget_constructor_locations.dart:238:5)
#5 ConstructorInvocation.accept (package:kernel/ast.dart:4204:44)
#6 MapEntry.transformChildren (package:kernel/ast.dart:5504:21)
#7 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#8 TreeVisitor.visitMapEntry (package:kernel/visitor.dart:265:37)
#9 MapEntry.accept (package:kernel/ast.dart:5491:38)
#10 transformList (package:kernel/ast.dart:9699:27)
#11 MapLiteral.transformChildren (package:kernel/ast.dart:5454:5)
#12 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#13 TreeVisitor.defaultExpression (package:kernel/visitor.dart:144:43)
#14 TreeVisitor.visitMapLiteral (package:kernel/visitor.dart:186:41)
#15 MapLiteral.accept (package:kernel/ast.dart:5441:44)
#16 transformList (package:kernel/ast.dart:9699:27)
#17 Arguments.transformChildren (package:kernel/ast.dart:3813:5)
#18 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#19 TreeVisitor.visitArguments (package:kernel/visitor.dart:261:39)
#20 Arguments.accept (package:kernel/ast.dart:3803:38)
#21 ConstructorInvocation.transformChildren (package:kernel/ast.dart:4215:29)
#22 _WidgetCallSiteTransformer.visitConstructorInvocation (package:kernel/transformations/track_widget_constructor_locations.dart:230:10)
#23 ConstructorInvocation.accept (package:kernel/ast.dart:4204:44)
#24 transformList (package:kernel/ast.dart:9699:27)
#25 Arguments.transformChildren (package:kernel/ast.dart:3813:5)
#26 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#27 TreeVisitor.visitArguments (package:kernel/visitor.dart:261:39)
#28 Arguments.accept (package:kernel/ast.dart:3803:38)
#29 StaticInvocation.transformChildren (package:kernel/ast.dart:4149:29)
#30 _WidgetCallSiteTransformer.visitStaticInvocation (package:kernel/transformations/track_widget_constructor_locations.dart:202:10)
#31 StaticInvocation.accept (package:kernel/ast.dart:4138:44)
#32 VariableDeclaration.transformChildren (package:kernel/ast.dart:7001:33)
#33 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#34 TreeVisitor.defaultStatement (package:kernel/visitor.dart:203:41)
#35 TreeVisitor.visitVariableDeclaration (package:kernel/visitor.dart:225:7)
#36 VariableDeclaration.accept (package:kernel/ast.dart:6987:43)
#37 transformList (package:kernel/ast.dart:9699:27)
#38 Block.transformChildren (package:kernel/ast.dart:5881:5)
#39 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#40 TreeVisitor.defaultStatement (package:kernel/visitor.dart:203:41)
#41 TreeVisitor.visitBlock (package:kernel/visitor.dart:206:31)
#42 Block.accept (package:kernel/ast.dart:5873:43)
#43 FunctionNode.transformChildren (package:kernel/ast.dart:2948:19)
#44 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#45 TreeVisitor.visitFunctionNode (package:kernel/visitor.dart:260:45)
#46 FunctionNode.accept (package:kernel/ast.dart:2932:38)
#47 Procedure.transformChildren (package:kernel/ast.dart:2436:27)
#48 Transformer.defaultTreeNode (package:kernel/visitor.dart:653:10)
#49 _WidgetCallSiteTransformer.visitProcedure (package:kernel/transformations/track_widget_constructor_locations.dart:193:12)
#50 Procedure.accept (package:kernel/ast.dart:2423:40)
#51 transformList (package:kernel/ast.dart:9699:27)
#52 Library.transformChildren (package:kernel/ast.dart:627:5)
#53 WidgetCreatorTracker.transform (package:kernel/transformations/track_widget_constructor_locations.dart:504:15)
#54 FlutterTarget.performPreConstantEvaluationTransformations (package:vm/target/flutter.dart:82:22)
#55 KernelTarget.runBuildTransformations (package:front_end/src/fasta/kernel/kernel_target.dart:1093:19)
#56 KernelTarget.buildComponent. (package:front_end/src/fasta/kernel/kernel_target.dart:390:7)
#57 KernelTarget.buildComponent. (package:front_end/src/fasta/kernel/kernel_target.dart)
#58 withCrashReporting (package:front_end/src/fasta/crash.dart:122:24)
#59 KernelTarget.buildComponent (package:front_end/src/fasta/kernel/kernel_target.dart:380:12)
#60 generateKernelInternal. (package:front_end/src/kernel_generator_impl.dart:177:38)
#61 generateKernelInternal. (package:front_end/src/kernel_generator_impl.dart)
#62 withCrashReporting (package:front_end/src/fasta/crash.dart:122:24)
#63 generateKernelInternal (package:front_end/src/kernel_generator_impl.dart:73:10)
#64 kernelForProgramInternal. (package:front_end/src/api_prototype/kernel_generator.dart:61:35)
#65 CompilerContext.runWithOptions. (package:front_end/src/fasta/compiler_context.dart:135:20)
#66 CompilerContext.runWithOptions. (package:front_end/src/fasta/compiler_context.dart)
#67 CompilerContext.runInContext.. (package:front_end/src/fasta/compiler_context.dart:123:46)
#68 new Future.sync (dart:async/future.dart:223:31)
#69 CompilerContext.runInContext. (package:front_end/src/fasta/compiler_context.dart:123:19)
#70 _rootRun (dart:async/zone.dart:1190:13)
#71 _CustomZone.run (dart:async/zone.dart:1093:19)
#72 _runZoned (dart:async/zone.dart:1630:10)
#73 runZoned (dart:async/zone.dart:1550:10)
#74 CompilerContext.runInContext (package:front_end/src/fasta/compiler_context.dart:122:12)
#75 CompilerContext.runWithOptions (package:front_end/src/fasta/compiler_context.dart:133:10)
#76 kernelForProgramInternal (package:front_end/src/api_prototype/kernel_generator.dart:60:32)
#77 kernelForProgram (package:front_end/src/api_prototype/kernel_generator.dart:52:17)
#78 compileToKernel (package:vm/kernel_front_end.dart:381:28)
#79 FrontendCompiler.compile. (package:frontend_server/frontend_server.dart:542:54)
#80 new Future. (dart:async/future.dart:175:37)
#81 _rootRun (dart:async/zone.dart:1182:47)
#82 _CustomZone.run (dart:async/zone.dart:1093:19)
#83 _CustomZone.runGuarded (dart:async/zone.dart:997:7)
#84 _CustomZone.bindCallbackGuarded. (dart:async/zone.dart:1037:23)
#85 _rootRun (dart:async/zone.dart:1190:13)
#86 _CustomZone.run (dart:async/zone.dart:1093:19)
#87 _CustomZone.bindCallback. (dart:async/zone.dart:1021:23)
#88 Timer._createTimer. (dart:async-patch/timer_patch.dart:18:15)
#89 _Timer._runTimers (dart:isolate-patch/timer_impl.dart:397:19)
#90 _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:428:5)
#91 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)
Oops; flutter has exited unexpectedly: "FileSystemException: Cannot open file, path = 'build/flutter_assets/.last_build_id' (OS Error: No such file or
directory, errno = 2)".
A crash report has been written to /Users/local-admin/Documents/code2/aspectd/aspectd_impl/flutter_01.log.
This crash may already be reported. Check GitHub for similar crashes.
https://github.com/flutter/flutter/issues?q=is%3Aissue+FileSystemException%3A+Cannot+open+file%2C+path+%3D+%27build%2Fflutter_assets%2F.last_build_id%27+%28OS+Error%3A+No+such+file+or+directory%2C+errno+%3D+2%29
To report your crash to the Flutter team, first read the guide to filing a bug.
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Create a new GitHub issue by pasting this link into your browser and completing the issue template. Thank you!
https://git.io/JLXS0
flutter doctor 信息：
Doctor summary (to see all details, run flutter doctor -v):
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