fix parser

Author: soutaro

lib/rbs/ast/ruby/members.rb

@@ -42,6 +42,7 @@ def self.build(param_type_annotations, return_type_annotation, node)
 
               splat_annotation = nil #: Annotations::SplatParamTypeAnnotation?
               double_splat_annotation = nil #: Annotations::DoubleSplatParamTypeAnnotation?
+              param_annotations = {} #: Hash[Symbol, Annotations::ParamTypeAnnotation]
               unused = [] #: Array[Annotations::ParamTypeAnnotation | Annotations::SplatParamTypeAnnotation | Annotations::DoubleSplatParamTypeAnnotation]
 
               param_type_annotations.each do |annot|
@@ -59,7 +60,12 @@ def self.build(param_type_annotations, return_type_annotation, node)
                     double_splat_annotation = annot
                   end
                 when Annotations::ParamTypeAnnotation
-                  unused << annot
+                  name = annot.name_location.source.to_sym
+                  if param_annotations.key?(name)
+                    unused << annot
+                  else
+                    param_annotations[name] = annot
+                  end
                 end
               end
 
@@ -68,9 +74,8 @@ def self.build(param_type_annotations, return_type_annotation, node)
 
                 params.requireds.each do |param|
                   if param.is_a?(Prism::RequiredParameterNode)
-                    annotation = unused.find { _1.name_location.source.to_sym == param.name }
+                    annotation = param_annotations.delete(param.name)
                     if annotation
-                      unused.delete(annotation)
                       doc.required_positionals << annotation
                     else
                       doc.required_positionals << param.name
@@ -80,9 +85,8 @@ def self.build(param_type_annotations, return_type_annotation, node)
 
                 params.optionals.each do |param|
                   if param.is_a?(Prism::OptionalParameterNode)
-                    annotation = unused.find { _1.name_location.source.to_sym == param.name }
+                    annotation = param_annotations.delete(param.name)
                     if annotation
-                      unused.delete(annotation)
                       doc.optional_positionals << annotation
                     else
                       doc.optional_positionals << param.name
@@ -101,9 +105,8 @@ def self.build(param_type_annotations, return_type_annotation, node)
 
                 params.posts.each do |param|
                   if param.is_a?(Prism::RequiredParameterNode)
-                    annotation = unused.find { _1.name_location.source.to_sym == param.name }
+                    annotation = param_annotations.delete(param.name)
                     if annotation
-                      unused.delete(annotation)
                       doc.trailing_positionals << annotation
                     else
                       doc.trailing_positionals << param.name
@@ -114,17 +117,15 @@ def self.build(param_type_annotations, return_type_annotation, node)
                 params.keywords.each do |param|
                   case param
                   when Prism::RequiredKeywordParameterNode
-                    annotation = unused.find { _1.name_location.source.to_sym == param.name }
+                    annotation = param_annotations.delete(param.name)
                     if annotation
-                      unused.delete(annotation)
                       doc.required_keywords[param.name] = annotation
                     else
                       doc.required_keywords[param.name] = param.name
                     end
                   when Prism::OptionalKeywordParameterNode
-                    annotation = unused.find { _1.name_location.source.to_sym == param.name }
+                    annotation = param_annotations.delete(param.name)
                     if annotation
-                      unused.delete(annotation)
                       doc.optional_keywords[param.name] = annotation
                     else
                       doc.optional_keywords[param.name] = param.name
@@ -142,6 +143,7 @@ def self.build(param_type_annotations, return_type_annotation, node)
                 end
               end
 
+              unused.concat(param_annotations.values)
               unused << splat_annotation if splat_annotation
               unused << double_splat_annotation if double_splat_annotation