[dart][core] Fix reservedWordsMappings (#12436)

* [core] Fix naming of reservedWordsMappings 

* `GeneratorSettings` used a wrong name (missing `s`) which resulted in config loaded from YAMl files not working

* [dart] Respect reservedWordsMappings when checking for reserved words

bin/configs/dart-dio-petstore-client-lib-fake.yaml

@@ -9,3 +9,5 @@ typeMappings:
 additionalProperties:
   hideGenerationTimestamp: "true"
   enumUnknownDefaultCase: "true"
+reservedWordsMappings:
+  class: "classField"

modules/openapi-generator-core/src/main/java/org/openapitools/codegen/config/GeneratorSettings.java

@@ -52,7 +52,7 @@ public final class GeneratorSettings implements Serializable {
     private final Map<String, String> importMappings;
     private final Map<String, String> inlineSchemaNameMappings;
     private final Set<String> languageSpecificPrimitives;
-    private final Map<String, String> reservedWordMappings;
+    private final Map<String, String> reservedWordsMappings;
     private final Map<String, String> serverVariables;
 
     private String gitHost;
@@ -268,8 +268,8 @@ public final class GeneratorSettings implements Serializable {
      *
      * @return the reserved word mappings
      */
-    public Map<String, String> getReservedWordMappings() {
-        return reservedWordMappings;
+    public Map<String, String> getReservedWordsMappings() {
+        return reservedWordsMappings;
     }
 
 
@@ -361,7 +361,7 @@ public final class GeneratorSettings implements Serializable {
         importMappings = Collections.unmodifiableMap(builder.importMappings);
         inlineSchemaNameMappings = Collections.unmodifiableMap(builder.inlineSchemaNameMappings);
         languageSpecificPrimitives = Collections.unmodifiableSet(builder.languageSpecificPrimitives);
-        reservedWordMappings = Collections.unmodifiableMap(builder.reservedWordMappings);
+        reservedWordsMappings = Collections.unmodifiableMap(builder.reservedWordsMappings);
         serverVariables = Collections.unmodifiableMap(builder.serverVariables);
         gitHost = builder.gitHost;
         gitUserId = builder.gitUserId;
@@ -432,7 +432,7 @@ public final class GeneratorSettings implements Serializable {
         importMappings = Collections.unmodifiableMap(new HashMap<>(0));
         inlineSchemaNameMappings = Collections.unmodifiableMap(new HashMap<>(0));
         languageSpecificPrimitives = Collections.unmodifiableSet(new HashSet<>(0));
-        reservedWordMappings = Collections.unmodifiableMap(new HashMap<>(0));
+        reservedWordsMappings = Collections.unmodifiableMap(new HashMap<>(0));
         serverVariables = Collections.unmodifiableMap(new HashMap<>(0));
     }
 
@@ -488,8 +488,8 @@ public final class GeneratorSettings implements Serializable {
         if (copy.getLanguageSpecificPrimitives() != null) {
             builder.languageSpecificPrimitives.addAll(copy.getLanguageSpecificPrimitives());
         }
-        if (copy.getReservedWordMappings() != null) {
-            builder.reservedWordMappings.putAll(copy.getReservedWordMappings());
+        if (copy.getReservedWordsMappings() != null) {
+            builder.reservedWordsMappings.putAll(copy.getReservedWordsMappings());
         }
         if (copy.getServerVariables() != null) {
             builder.serverVariables.putAll(copy.getServerVariables());
@@ -526,7 +526,7 @@ public final class GeneratorSettings implements Serializable {
         private Map<String, String> importMappings;
         private Map<String, String> inlineSchemaNameMappings;
         private Set<String> languageSpecificPrimitives;
-        private Map<String, String> reservedWordMappings;
+        private Map<String, String> reservedWordsMappings;
         private Map<String, String> serverVariables;
         private String gitHost;
         private String gitUserId;
@@ -544,7 +544,7 @@ public final class GeneratorSettings implements Serializable {
             importMappings = new HashMap<>();
             inlineSchemaNameMappings = new HashMap<>();
             languageSpecificPrimitives = new HashSet<>();
-            reservedWordMappings = new HashMap<>();
+            reservedWordsMappings = new HashMap<>();
             serverVariables = new HashMap<>();
 
             gitHost = DEFAULT_GIT_HOST;
@@ -837,28 +837,28 @@ public final class GeneratorSettings implements Serializable {
         }
 
         /**
-         * Sets the {@code reservedWordMappings} and returns a reference to this Builder so that the methods can be chained together.
+         * Sets the {@code reservedWordsMappings} and returns a reference to this Builder so that the methods can be chained together.
          *
-         * @param reservedWordMappings the {@code reservedWordMappings} to set
+         * @param reservedWordsMappings the {@code reservedWordsMappings} to set
          * @return a reference to this Builder
          */
-        public Builder withReservedWordMappings(Map<String, String> reservedWordMappings) {
-            this.reservedWordMappings = reservedWordMappings;
+        public Builder withReservedWordsMappings(Map<String, String> reservedWordsMappings) {
+            this.reservedWordsMappings = reservedWordsMappings;
             return this;
         }
 
         /**
-         * Sets a single {@code reservedWordMappings} and returns a reference to this Builder so that the methods can be chained together.
+         * Sets a single {@code reservedWordsMappings} and returns a reference to this Builder so that the methods can be chained together.
          *
          * @param key   A key for some reserved word mapping
          * @param value The value of some reserved word mapping
          * @return a reference to this Builder
          */
         public Builder withReservedWordMapping(String key, String value) {
-            if (this.reservedWordMappings == null) {
-                this.reservedWordMappings = new HashMap<>();
+            if (this.reservedWordsMappings == null) {
+                this.reservedWordsMappings = new HashMap<>();
             }
-            this.reservedWordMappings.put(key, value);
+            this.reservedWordsMappings.put(key, value);
             return this;
         }
 
@@ -966,7 +966,7 @@ public final class GeneratorSettings implements Serializable {
                 ", additionalProperties=" + additionalProperties +
                 ", importMappings=" + importMappings +
                 ", languageSpecificPrimitives=" + languageSpecificPrimitives +
-                ", reservedWordMappings=" + reservedWordMappings +
+                ", reservedWordsMappings=" + reservedWordsMappings +
                 ", gitHost='" + gitHost + '\'' +
                 ", gitUserId='" + gitUserId + '\'' +
                 ", gitRepoId='" + gitRepoId + '\'' +
@@ -998,7 +998,7 @@ public final class GeneratorSettings implements Serializable {
                 Objects.equals(getImportMappings(), that.getImportMappings()) &&
                 Objects.equals(getInlineSchemaNameMappings(), that.getInlineSchemaNameMappings()) &&
                 Objects.equals(getLanguageSpecificPrimitives(), that.getLanguageSpecificPrimitives()) &&
-                Objects.equals(getReservedWordMappings(), that.getReservedWordMappings()) &&
+                Objects.equals(getReservedWordsMappings(), that.getReservedWordsMappings()) &&
                 Objects.equals(getGitHost(), that.getGitHost()) &&
                 Objects.equals(getGitUserId(), that.getGitUserId()) &&
                 Objects.equals(getGitRepoId(), that.getGitRepoId()) &&
@@ -1027,7 +1027,7 @@ public final class GeneratorSettings implements Serializable {
                 getImportMappings(),
                 getInlineSchemaNameMappings(),
                 getLanguageSpecificPrimitives(),
-                getReservedWordMappings(),
+                getReservedWordsMappings(),
                 getGitHost(),
                 getGitUserId(),
                 getGitRepoId(),

modules/openapi-generator-maven-plugin/src/main/java/org/openapitools/codegen/plugin/CodeGenMojo.java

@@ -331,7 +331,7 @@ public class CodeGenMojo extends AbstractMojo {
     /**
      * A map of reserved names and how they should be escaped
      */
-    @Parameter(name = "reservedWordsMappings", property = "openapi.generator.maven.plugin.reservedWordMappings")
+    @Parameter(name = "reservedWordsMappings", property = "openapi.generator.maven.plugin.reservedWordsMappings")
     private List<String> reservedWordsMappings;
 
     /**

modules/openapi-generator/src/main/java/org/openapitools/codegen/config/CodegenConfigurator.java

@@ -70,7 +70,7 @@ public class CodegenConfigurator {
     private Map<String, String> importMappings = new HashMap<>();
     private Map<String, String> inlineSchemaNameMappings = new HashMap<>();
     private Set<String> languageSpecificPrimitives = new HashSet<>();
-    private Map<String, String> reservedWordMappings = new HashMap<>();
+    private Map<String, String> reservedWordsMappings = new HashMap<>();
     private Map<String, String> serverVariables = new HashMap<>();
     private String auth;
 
@@ -118,8 +118,8 @@ public class CodegenConfigurator {
             if(generatorSettings.getLanguageSpecificPrimitives() != null) {
                 configurator.languageSpecificPrimitives.addAll(generatorSettings.getLanguageSpecificPrimitives());
             }
-            if(generatorSettings.getReservedWordMappings() != null) {
-                configurator.reservedWordMappings.putAll(generatorSettings.getReservedWordMappings());
+            if(generatorSettings.getReservedWordsMappings() != null) {
+                configurator.reservedWordsMappings.putAll(generatorSettings.getReservedWordsMappings());
             }
             if(generatorSettings.getServerVariables() != null) {
                 configurator.serverVariables.putAll(generatorSettings.getServerVariables());
@@ -173,7 +173,7 @@ public class CodegenConfigurator {
     }
 
     public CodegenConfigurator addAdditionalReservedWordMapping(String key, String value) {
-        this.reservedWordMappings.put(key, value);
+        this.reservedWordsMappings.put(key, value);
         generatorSettingsBuilder.withReservedWordMapping(key, value);
         return this;
     }
@@ -226,9 +226,9 @@ public class CodegenConfigurator {
         return this;
     }
 
-    public CodegenConfigurator setReservedWordsMappings(Map<String, String> reservedWordMappings) {
-        this.reservedWordMappings = reservedWordMappings;
-        generatorSettingsBuilder.withReservedWordMappings(reservedWordMappings);
+    public CodegenConfigurator setReservedWordsMappings(Map<String, String> reservedWordsMappings) {
+        this.reservedWordsMappings = reservedWordsMappings;
+        generatorSettingsBuilder.withReservedWordsMappings(reservedWordsMappings);
         return this;
     }
 
@@ -628,7 +628,7 @@ public class CodegenConfigurator {
         config.importMapping().putAll(generatorSettings.getImportMappings());
         config.inlineSchemaNameMapping().putAll(generatorSettings.getInlineSchemaNameMappings());
         config.languageSpecificPrimitives().addAll(generatorSettings.getLanguageSpecificPrimitives());
-        config.reservedWordsMappings().putAll(generatorSettings.getReservedWordMappings());
+        config.reservedWordsMappings().putAll(generatorSettings.getReservedWordsMappings());
         config.additionalProperties().putAll(generatorSettings.getAdditionalProperties());
 
         Map<String, String> serverVariables = generatorSettings.getServerVariables();

modules/openapi-generator/src/main/java/org/openapitools/codegen/config/CodegenConfiguratorUtils.java

@@ -146,14 +146,14 @@ public final class CodegenConfiguratorUtils {
         }
     }
 
-    public static void applyReservedWordsMappingsKvpList(List<String> reservedWordMappings, CodegenConfigurator configurator) {
-        for (String propString : reservedWordMappings) {
+    public static void applyReservedWordsMappingsKvpList(List<String> reservedWordsMappings, CodegenConfigurator configurator) {
+        for (String propString : reservedWordsMappings) {
             applyReservedWordsMappingsKvp(propString, configurator);
         }
     }
 
-    public static void applyReservedWordsMappingsKvp(String reservedWordMappings, CodegenConfigurator configurator) {
-        final Map<String, String> map = createMapFromKeyValuePairs(reservedWordMappings);
+    public static void applyReservedWordsMappingsKvp(String reservedWordsMappings, CodegenConfigurator configurator) {
+        final Map<String, String> map = createMapFromKeyValuePairs(reservedWordsMappings);
         for (Map.Entry<String, String> entry : map.entrySet()) {
             configurator.addAdditionalReservedWordMapping(entry.getKey(), entry.getValue());
         }

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java

@@ -305,13 +305,18 @@ public abstract class AbstractDartCodegen extends DefaultCodegen {
 
     @Override
     protected boolean isReservedWord(String word) {
-        // consider everything as reserved that is either a keyword,
-        // a default included type, or a type include through some library
-        return super.isReservedWord(word) || defaultIncludes().contains(word);
+        // consider everything as reserved that is
+        // * a keyword
+        // * a word that has been mapped in the reservedWordsMappings
+        // * a default included type or a type include through some library
+        return super.isReservedWord(word) || reservedWordsMappings().containsKey(word) || defaultIncludes().contains(word);
     }
 
     @Override
     public String escapeReservedWord(String name) {
+        if (reservedWordsMappings().containsKey(name)) {
+            return reservedWordsMappings().get(name);
+        }
         return name + "_";
     }
 

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/doc/ClassModel.md

@@ -8,7 +8,7 @@ import 'package:openapi/api.dart';
 ## Properties
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**class_** | **String** |  | [optional] 
+**classField** | **String** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/doc/Model200Response.md

@@ -9,7 +9,7 @@ import 'package:openapi/api.dart';
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **name** | **int** |  | [optional] 
-**class_** | **String** |  | [optional] 
+**classField** | **String** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/lib/src/model/class_model.dart

@@ -10,10 +10,10 @@ part 'class_model.g.dart';
 /// Model for testing model with \"_class\" property
 ///
 /// Properties:
-/// * [class_] 
+/// * [classField] 
 abstract class ClassModel implements Built<ClassModel, ClassModelBuilder> {
     @BuiltValueField(wireName: r'_class')
-    String? get class_;
+    String? get classField;
 
     ClassModel._();
 
@@ -37,10 +37,10 @@ class _$ClassModelSerializer implements StructuredSerializer<ClassModel> {
     Iterable<Object?> serialize(Serializers serializers, ClassModel object,
         {FullType specifiedType = FullType.unspecified}) {
         final result = <Object?>[];
-        if (object.class_ != null) {
+        if (object.classField != null) {
             result
                 ..add(r'_class')
-                ..add(serializers.serialize(object.class_,
+                ..add(serializers.serialize(object.classField,
                     specifiedType: const FullType(String)));
         }
         return result;
@@ -61,7 +61,7 @@ class _$ClassModelSerializer implements StructuredSerializer<ClassModel> {
                 case r'_class':
                     final valueDes = serializers.deserialize(value,
                         specifiedType: const FullType(String)) as String;
-                    result.class_ = valueDes;
+                    result.classField = valueDes;
                     break;
             }
         }

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/lib/src/model/model200_response.dart

@@ -11,13 +11,13 @@ part 'model200_response.g.dart';
 ///
 /// Properties:
 /// * [name] 
-/// * [class_] 
+/// * [classField] 
 abstract class Model200Response implements Built<Model200Response, Model200ResponseBuilder> {
     @BuiltValueField(wireName: r'name')
     int? get name;
 
     @BuiltValueField(wireName: r'class')
-    String? get class_;
+    String? get classField;
 
     Model200Response._();
 
@@ -47,10 +47,10 @@ class _$Model200ResponseSerializer implements StructuredSerializer<Model200Respo
                 ..add(serializers.serialize(object.name,
                     specifiedType: const FullType(int)));
         }
-        if (object.class_ != null) {
+        if (object.classField != null) {
             result
                 ..add(r'class')
-                ..add(serializers.serialize(object.class_,
+                ..add(serializers.serialize(object.classField,
                     specifiedType: const FullType(String)));
         }
         return result;
@@ -76,7 +76,7 @@ class _$Model200ResponseSerializer implements StructuredSerializer<Model200Respo
                 case r'class':
                     final valueDes = serializers.deserialize(value,
                         specifiedType: const FullType(String)) as String;
-                    result.class_ = valueDes;
+                    result.classField = valueDes;
                     break;
             }
         }