From 0f11fd21bdf5417e8cbf86b554c60b9a7c3d464a Mon Sep 17 00:00:00 2001
From: Rene Saarsoo <nene@triin.net>
Date: Wed, 5 Dec 2012 09:41:49 -0800
Subject: [PATCH] Allow negative numbers in type definitions.

---
 lib/jsduck/type_parser.rb | 6 +++---
 spec/type_parser_spec.rb  | 4 ++++
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/lib/jsduck/type_parser.rb b/lib/jsduck/type_parser.rb
index f38fcd50..7763574e 100644
--- a/lib/jsduck/type_parser.rb
+++ b/lib/jsduck/type_parser.rb
@@ -158,7 +158,7 @@ module JsDuck
         return false unless function_type
       elsif @input.check(/['"]/)
         return false unless string_literal
-      elsif @input.check(/\d/)
+      elsif @input.check(/[\d-]/)
         return false unless number_literal
       else
         return false unless type_name
@@ -305,10 +305,10 @@ module JsDuck
     end
 
     #
-    #     <number-literal> ::= <digit>+ [ "." <digit>+ ]
+    #     <number-literal> ::= [ "-" ] <digit>+ [ "." <digit>+ ]
     #
     def number_literal
-      @out << @input.scan(/\d+(\.\d+)?/)
+      @out << @input.scan(/-?\d+(\.\d+)?/)
 
       true
     end
diff --git a/spec/type_parser_spec.rb b/spec/type_parser_spec.rb
index fd814e8d..35435a99 100644
--- a/spec/type_parser_spec.rb
+++ b/spec/type_parser_spec.rb
@@ -34,6 +34,10 @@ describe JsDuck::TypeParser do
     parse('42').should == true
   end
 
+  it "matches negative number literal" do
+    parse('-6').should == true
+  end
+
   it "matches float number literal" do
     parse('3.14').should == true
   end
-- 
GitLab