fix enum ref in rust api paramaters

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

@@ -582,6 +582,28 @@ public class RustClientCodegen extends AbstractRustCodegen implements CodegenCon
                     p.dataType = "super::" + p.dataType;
                 }
             }*/
+
+            // {{{dataType}}}{{/isUuid}}{{/isString}}{{^required}}>{{/required}}{{#required}}{{#isNullable}}>{{/isNullable}}{{/required}}
+            for (CodegenParameter p : operation.allParams) {
+                String paramDataType = p.dataType;
+                if (p.isString || p.isUuid) {
+                    paramDataType = "&str";
+                }
+
+                if (p.isEnumRef || p.isModel) {
+                    paramDataType = "crate::models::" + p.dataType;
+                }
+
+                //if (p.isArray) {
+                //    paramDataType = "Vec<" + paramDataType + ">";
+                //}
+
+                if (!p.required || p.isNullable) {
+                    paramDataType = "Option<" + paramDataType + ">";
+                }
+
+                p.vendorExtensions.put("x-rust-data-type", paramDataType);
+            }
         }
 
         return objs;

modules/openapi-generator/src/main/resources/rust/reqwest/api.mustache

@@ -90,7 +90,7 @@ pub {{#supportAsync}}async {{/supportAsync}}fn {{{operationId}}}(configuration:
 
 {{/vendorExtensions.x-group-parameters}}
 {{^vendorExtensions.x-group-parameters}}
-pub {{#supportAsync}}async {{/supportAsync}}fn {{{operationId}}}(configuration: &configuration::Configuration, {{#allParams}}{{{paramName}}}: {{^required}}Option<{{/required}}{{#required}}{{#isNullable}}Option<{{/isNullable}}{{/required}}{{#isString}}{{#isArray}}Vec<{{/isArray}}{{^isUuid}}&str{{/isUuid}}{{#isArray}}>{{/isArray}}{{/isString}}{{#isUuid}}{{#isArray}}Vec<{{/isArray}}&str{{#isArray}}>{{/isArray}}{{/isUuid}}{{^isString}}{{^isUuid}}{{^isPrimitiveType}}{{^isContainer}}{{#isBodyParam}}crate::models::{{/isBodyParam}}{{/isContainer}}{{/isPrimitiveType}}{{{dataType}}}{{/isUuid}}{{/isString}}{{^required}}>{{/required}}{{#required}}{{#isNullable}}>{{/isNullable}}{{/required}}{{^-last}}, {{/-last}}{{/allParams}}) -> Result<{{#supportMultipleResponses}}ResponseContent<{{{operationIdCamelCase}}}Success>{{/supportMultipleResponses}}{{^supportMultipleResponses}}{{^returnType}}(){{/returnType}}{{{returnType}}}{{/supportMultipleResponses}}, Error<{{{operationIdCamelCase}}}Error>> {
+pub {{#supportAsync}}async {{/supportAsync}}fn {{{operationId}}}(configuration: &configuration::Configuration, {{#allParams}}{{{paramName}}}: {{{vendorExtensions.x-rust-data-type}}}{{^-last}}, {{/-last}}{{/allParams}}) -> Result<{{#supportMultipleResponses}}ResponseContent<{{{operationIdCamelCase}}}Success>{{/supportMultipleResponses}}{{^supportMultipleResponses}}{{^returnType}}(){{/returnType}}{{{returnType}}}{{/supportMultipleResponses}}, Error<{{{operationIdCamelCase}}}Error>> {
     let local_var_configuration = configuration;
 {{/vendorExtensions.x-group-parameters}}