Fix CS8957 Target-Typed Conditional Expression

Author: JanRhijnAkzo

modules/openapi-generator/src/main/resources/csharp/libraries/generichost/JsonConverter.mustache

@@ -185,27 +185,27 @@
                         {{/isMap}}
                         {{/isString}}
                         {{#isBoolean}}
-                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? null : utf8JsonReader.GetBoolean());
+                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? (bool?)null : utf8JsonReader.GetBoolean());
                         {{/isBoolean}}
                         {{#isNumeric}}
                         {{^isEnum}}
                         {{#isDouble}}
-                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? null : utf8JsonReader.GetDouble());
+                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? (double?)null : utf8JsonReader.GetDouble());
                         {{/isDouble}}
                         {{#isDecimal}}
-                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? null : utf8JsonReader.GetDecimal());
+                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? (decimal?)null : utf8JsonReader.GetDecimal());
                         {{/isDecimal}}
                         {{#isFloat}}
-                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? null : (float)utf8JsonReader.GetDouble());
+                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? (float?)null : (float)utf8JsonReader.GetDouble());
                         {{/isFloat}}
                         {{#isLong}}
-                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? null : utf8JsonReader.Get{{#vendorExtensions.x-unsigned}}U{{/vendorExtensions.x-unsigned}}Int64());
+                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? (Int64?)null : utf8JsonReader.Get{{#vendorExtensions.x-unsigned}}U{{/vendorExtensions.x-unsigned}}Int64());
                         {{/isLong}}
                         {{^isLong}}
                         {{^isFloat}}
                         {{^isDecimal}}
                         {{^isDouble}}
-                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? null : utf8JsonReader.Get{{#vendorExtensions.x-unsigned}}U{{/vendorExtensions.x-unsigned}}Int32());
+                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? (Int32?)null : utf8JsonReader.Get{{#vendorExtensions.x-unsigned}}U{{/vendorExtensions.x-unsigned}}Int32());
                         {{/isDouble}}
                         {{/isDecimal}}
                         {{/isFloat}}
@@ -221,7 +221,7 @@
                         {{#isEnum}}
                         {{^isMap}}
                         {{#isNumeric}}
-                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}({{#isInnerEnum}}{{classname}}.{{/isInnerEnum}}{{{datatypeWithEnum}}})utf8JsonReader.TokenType == JsonTokenType.Null ? null : utf8JsonReader.Get{{#vendorExtensions.x-unsigned}}U{{/vendorExtensions.x-unsigned}}Int32());
+                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}({{#isInnerEnum}}{{classname}}.{{/isInnerEnum}}{{{datatypeWithEnum}}})utf8JsonReader.TokenType == JsonTokenType.Null ? (Int32?)null : utf8JsonReader.Get{{#vendorExtensions.x-unsigned}}U{{/vendorExtensions.x-unsigned}}Int32());
                         {{/isNumeric}}
                         {{^isNumeric}}
                             string{{nrt?}} {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}}RawValue = utf8JsonReader.GetString();
@@ -237,7 +237,7 @@
                         {{/isMap}}
                         {{/isEnum}}
                         {{#isUuid}}
-                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? null : utf8JsonReader.GetGuid());
+                            {{#lambda.camelcase_sanitize_param}}{{name}}{{/lambda.camelcase_sanitize_param}} = {{>OptionProperty}}utf8JsonReader.TokenType == JsonTokenType.Null ? (Guid?)null : utf8JsonReader.GetGuid());
                         {{/isUuid}}
                         {{^isUuid}}
                         {{^isEnum}}