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feat(dynamite): generate custom serializers for every built class 

Signed-off-by: Nikolas Rimikis <leptopoda@users.noreply.github.com>
pull/1130/head
Nikolas Rimikis 1 year ago
parent
a86b79c46e
commit
350daef63b
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3 changed files with 242 additions and 4 deletions
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  1. 221
      packages/dynamite/dynamite/lib/src/builder/built_object_serializer.dart
  2. 5
      packages/dynamite/dynamite/lib/src/builder/resolve_object.dart
  3. 20
      packages/dynamite/dynamite/lib/src/models/type_result/type_result.dart

221
packages/dynamite/dynamite/lib/src/builder/built_object_serializer.dart
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@ -0,0 +1,221 @@
import 'package:code_builder/code_builder.dart';
import 'package:dynamite/src/builder/resolve_type.dart';
import 'package:dynamite/src/builder/state.dart';
import 'package:dynamite/src/helpers/dart_helpers.dart';
import 'package:dynamite/src/helpers/dynamite.dart';
import 'package:dynamite/src/models/openapi.dart' as openapi;
import 'package:dynamite/src/models/type_result.dart';
Spec buildBuiltClassSerializer(
final State state,
final String identifier,
final openapi.OpenAPI spec,
final openapi.Schema schema,
) =>
Class(
(final b) => b
..name = '_\$${identifier}Serializer'
..implements.add(refer('StructuredSerializer<$identifier>'))
..constructors.add(
Constructor(
(final b) => b..constant = true,
),
)
..methods.addAll([
Method(
(final b) => b
..name = 'types'
..type = MethodType.getter
..lambda = true
..returns = refer('Iterable<Type>')
..annotations.add(refer('override'))
..body = Code('const [$identifier, _\$$identifier]'),
),
Method(
(final b) => b
..name = 'wireName'
..type = MethodType.getter
..lambda = true
..returns = refer('String')
..annotations.add(refer('override'))
..body = Code("r'$identifier'"),
),
Method((final b) {
b
..name = 'serialize'
..returns = refer('Iterable<Object?>')
..annotations.add(refer('override'))
..requiredParameters.addAll([
Parameter(
(final b) => b
..name = 'serializers'
..type = refer('Serializers'),
),
Parameter(
(final b) => b
..name = 'object'
..type = refer(identifier),
),
])
..optionalParameters.add(
Parameter(
(final b) => b
..name = 'specifiedType'
..type = refer('FullType')
..named = true
..defaultTo = const Code('FullType.unspecified'),
),
);
final properties = serializeProperty(state, identifier, spec, schema);
final nullableProperties = serializePropertyNullable(state, identifier, spec, schema);
final buffer = StringBuffer()
..write('final result = <Object?>[')
..writeAll(properties, '\n')
..write('];')
..writeln();
if (nullableProperties.isNotEmpty) {
buffer
..write('Object? value;')
..writeAll(nullableProperties, '\n')
..writeln();
}
buffer.write('return result;');
b.body = Code(buffer.toString());
}),
Method((final b) {
b
..name = 'deserialize'
..returns = refer(identifier)
..annotations.add(refer('override'))
..requiredParameters.addAll([
Parameter(
(final b) => b
..name = 'serializers'
..type = refer('Serializers'),
),
Parameter(
(final b) => b
..name = 'serialized'
..type = refer('Iterable<Object?>'),
),
])
..optionalParameters.add(
Parameter(
(final b) => b
..name = 'specifiedType'
..type = refer('FullType')
..named = true
..defaultTo = const Code('FullType.unspecified'),
),
)
..body = Code('''
final result = new ${identifier}Builder();
final iterator = serialized.iterator;
while (iterator.moveNext()) {
final key = iterator.current! as String;
iterator.moveNext();
final value = iterator.current;
switch (key) {
${deserializeProperty(state, identifier, spec, schema).join('\n')}
}
}
return result.build();
''');
}),
]),
);
Iterable<String> deserializeProperty(
final State state,
final String identifier,
final openapi.OpenAPI spec,
final openapi.Schema schema,
) sync* {
for (final property in schema.properties!.entries) {
final propertyName = property.key;
final propertySchema = property.value;
final dartName = toDartName(propertyName);
final result = resolveType(
spec,
state,
'${identifier}_${toDartName(propertyName, uppercaseFirstCharacter: true)}',
propertySchema,
nullable: isDartParameterNullable(schema.required.contains(propertyName), propertySchema),
);
yield "case '$propertyName':";
final deserialize = result.deserialize('value', 'serializers');
if (result is TypeResultBase || result is TypeResultEnum) {
yield 'result.$dartName = $deserialize;';
} else {
yield 'result.$dartName.replace($deserialize,);';
}
}
}
Iterable<String> serializePropertyNullable(
final State state,
final String identifier,
final openapi.OpenAPI spec,
final openapi.Schema schema,
) sync* {
for (final property in schema.properties!.entries) {
final propertyName = property.key;
final propertySchema = property.value;
final dartName = toDartName(propertyName);
final result = resolveType(
spec,
state,
'${identifier}_${toDartName(propertyName, uppercaseFirstCharacter: true)}',
propertySchema,
nullable: isDartParameterNullable(schema.required.contains(propertyName), propertySchema),
);
if (!result.nullable) {
continue;
}
yield '''
value = object.$dartName;
if (value != null) {
result
..add('$propertyName')
..add(${result.serialize('value', 'serializers')},);
}
''';
}
}
Iterable<String> serializeProperty(
final State state,
final String identifier,
final openapi.OpenAPI spec,
final openapi.Schema schema,
) sync* {
for (final property in schema.properties!.entries) {
final propertyName = property.key;
final propertySchema = property.value;
final dartName = toDartName(propertyName);
final result = resolveType(
spec,
state,
'${identifier}_${toDartName(propertyName, uppercaseFirstCharacter: true)}',
propertySchema,
nullable: isDartParameterNullable(schema.required.contains(propertyName), propertySchema),
);
if (result.nullable) {
continue;
}
yield '''
'$propertyName',
${result.serialize('object.$dartName', 'serializers')},
''';
}
}

5
packages/dynamite/dynamite/lib/src/builder/resolve_object.dart
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@ -1,3 +1,4 @@
import 'package:dynamite/src/builder/built_object_serializer.dart';
import 'package:dynamite/src/builder/header_serializer.dart';
import 'package:dynamite/src/builder/resolve_interface.dart';
import 'package:dynamite/src/builder/resolve_type.dart';
@ -47,12 +48,14 @@ TypeResultObject resolveObject(
buildBuiltClass(
identifier,
defaults: defaults,
customSerializer: isHeader,
customSerializer: true,
),
);
if (isHeader) {
state.output.add(buildHeaderSerializer(state, identifier, spec, schema));
} else {
state.output.add(buildBuiltClassSerializer(state, identifier, spec, schema));
}
}
return result;

20
packages/dynamite/dynamite/lib/src/models/type_result/type_result.dart
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@ -87,13 +87,27 @@ sealed class TypeResult {
/// Serializes the variable named [object].
///
/// The serialized result is an [Object]?
String serialize(final String object) => '_jsonSerializers.serialize($object, specifiedType: const $fullType)';
@nonVirtual
String serialize(final String object, [final String? serializerName]) =>
'${serializerName ?? '_jsonSerializers'}.serialize($object, specifiedType: const $fullType)';
/// Deserializes the variable named [object].
///
/// The serialized result will be of [name].
String deserialize(final String object) =>
'(_jsonSerializers.deserialize($object, specifiedType: const $fullType)! as $name)';
@nonVirtual
String deserialize(final String object, [final String? serializerName]) {
final buffer = StringBuffer()
..write(serializerName ?? '_jsonSerializers')
..write('.deserialize(')
..write(object)
..write(', specifiedType: const $fullType)');
if (!nullable) {
buffer.write('!');
}
return '($buffer as $name)';
}
/// Decodes the variable named [object].
String decode(final String object) => 'json.decode($object as String)';

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