@@ -224,10 +224,11 @@ String compareField(
224224}
225225
226226/// Gets the name of the `const` map generated to help encode [Enum] types.
227- String enumMapName (InterfaceType type) => '_\$ ${type .element .name }EnumMap' ;
227+ String enumMapName (InterfaceType type) =>
228+ '_\$ ${type .element .displayName }EnumMap' ;
228229
229230/// Gets the name of the `const` map generated to help encode [Json] types.
230- String jsonMapName (InterfaceType type) => type.element.name ;
231+ String jsonMapName (InterfaceType type) => type.element.displayName ;
231232
232233String _stateValueAccess (
233234 FormalParameterElement element,
@@ -302,8 +303,10 @@ class _TypeHelperBigInt extends _TypeHelperWithHelper {
302303 );
303304
304305 @override
305- bool _matchesType (DartType type) =>
306- const TypeChecker .fromRuntime (BigInt ).isAssignableFromType (type);
306+ bool _matchesType (DartType type) => const TypeChecker .typeNamed (
307+ BigInt ,
308+ inSdk: true ,
309+ ).isAssignableFromType (type);
307310}
308311
309312class _TypeHelperBool extends _TypeHelperWithHelper {
@@ -342,8 +345,10 @@ class _TypeHelperDateTime extends _TypeHelperWithHelper {
342345 );
343346
344347 @override
345- bool _matchesType (DartType type) =>
346- const TypeChecker .fromRuntime (DateTime ).isAssignableFromType (type);
348+ bool _matchesType (DartType type) => const TypeChecker .typeNamed (
349+ DateTime ,
350+ inSdk: true ,
351+ ).isAssignableFromType (type);
347352}
348353
349354class _TypeHelperDouble extends _TypeHelperWithHelper {
@@ -472,14 +477,17 @@ class _TypeHelperExtensionType extends _TypeHelper {
472477 representationType.isDartCoreNum ||
473478 representationType.isDartCoreBool ||
474479 representationType.isEnum ||
475- const TypeChecker .fromRuntime (
480+ const TypeChecker .typeNamed (
476481 BigInt ,
482+ inSdk: true ,
477483 ).isAssignableFromType (representationType) ||
478- const TypeChecker .fromRuntime (
484+ const TypeChecker .typeNamed (
479485 DateTime ,
486+ inSdk: true ,
480487 ).isAssignableFromType (representationType) ||
481- const TypeChecker .fromRuntime (
488+ const TypeChecker .typeNamed (
482489 Uri ,
490+ inSdk: true ,
483491 ).isAssignableFromType (representationType);
484492 }
485493}
@@ -566,7 +574,7 @@ class _TypeHelperUri extends _TypeHelperWithHelper {
566574
567575 @override
568576 bool _matchesType (DartType type) =>
569- const TypeChecker .fromRuntime (Uri ).isAssignableFromType (type);
577+ const TypeChecker .typeNamed (Uri , inSdk : true ).isAssignableFromType (type);
570578}
571579
572580class _TypeHelperIterable extends _TypeHelperWithHelper {
@@ -606,16 +614,18 @@ class _TypeHelperIterable extends _TypeHelperWithHelper {
606614 // get correct type for iterable
607615 String iterableCaster = '' ;
608616 String fallBack = '' ;
609- if (const TypeChecker .fromRuntime (
617+ if (const TypeChecker .typeNamed (
610618 List ,
619+ inSdk: true ,
611620 ).isAssignableFromType (parameterElement.type)) {
612621 iterableCaster += '.toList()' ;
613622 if (! parameterElement.type.isNullableType &&
614623 ! parameterElement.hasDefaultValue) {
615624 fallBack = '?? const []' ;
616625 }
617- } else if (const TypeChecker .fromRuntime (
626+ } else if (const TypeChecker .typeNamed (
618627 Set ,
628+ inSdk: true ,
619629 ).isAssignableFromType (parameterElement.type)) {
620630 iterableCaster += '.toSet()' ;
621631 if (! parameterElement.type.isNullableType &&
@@ -656,8 +666,10 @@ $fieldName$nullAwareAccess.map((e) => e.toString()).toList()''';
656666 }
657667
658668 @override
659- bool _matchesType (DartType type) =>
660- const TypeChecker .fromRuntime (Iterable ).isAssignableFromType (type);
669+ bool _matchesType (DartType type) => const TypeChecker .typeNamed (
670+ Iterable ,
671+ inSdk: true ,
672+ ).isAssignableFromType (type);
661673
662674 @override
663675 String _compare (String value1, String value2) =>
@@ -783,10 +795,10 @@ class _TypeHelperJson extends _TypeHelperWithHelper {
783795 }
784796
785797 final FunctionType functionType = secondParam.type as FunctionType ;
786- if (functionType.parameters .length != 1 ||
798+ if (functionType.formalParameters .length != 1 ||
787799 functionType.returnType.getDisplayString () !=
788- type.element.typeParameters.first.getDisplayString () ||
789- functionType.parameters [0 ].type.getDisplayString () != 'Object?' ) {
800+ type.element.typeParameters.first.displayName ||
801+ functionType.formalParameters [0 ].type.getDisplayString () != 'Object?' ) {
790802 throw InvalidGenerationSourceError (
791803 'The parameter type '
792804 '`${type .getDisplayString (withNullability : false )}` not have a supported fromJson definition.' ,
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