Add location info to some MacroIf nodes

spec/compiler/parser/parser_spec.cr

@@ -2606,6 +2606,96 @@ module Crystal
         node.end_location.not_nil!.line_number.should eq(5)
       end
 
+      it "sets correct locations of macro if / else" do
+        parser = Parser.new(<<-CR)
+          {% if 1 == val %}
+            "one!"
+            "bar"
+          {% else %}
+            "not one"
+            "bar"
+          {% end %}
+        CR
+
+        node = parser.parse.as MacroIf
+
+        location = node.cond.location.should_not be_nil
+        location.line_number.should eq 1
+        location = node.cond.end_location.should_not be_nil
+        location.line_number.should eq 1
+
+        location = node.then.location.should_not be_nil
+        location.line_number.should eq 1
+        location = node.then.end_location.should_not be_nil
+        location.line_number.should eq 4
+
+        location = node.else.location.should_not be_nil
+        location.line_number.should eq 4
+        location = node.else.end_location.should_not be_nil
+        location.line_number.should eq 7
+      end
+
+      it "sets correct locations of macro if / elsif" do
+        parser = Parser.new(<<-CR)
+          {% if 1 == val %}
+            "one!"
+            "bar"
+          {% elsif 2 == val %}
+            "not one"
+            "bar"
+          {% end %}
+        CR
+
+        node = parser.parse.as MacroIf
+
+        location = node.cond.location.should_not be_nil
+        location.line_number.should eq 1
+        location = node.cond.end_location.should_not be_nil
+        location.line_number.should eq 1
+
+        location = node.then.location.should_not be_nil
+        location.line_number.should eq 1
+        location = node.then.end_location.should_not be_nil
+        location.line_number.should eq 4
+
+        location = node.else.location.should_not be_nil
+        location.line_number.should eq 4
+        location = node.else.end_location.should_not be_nil
+        location.line_number.should eq 7
+      end
+
+      it "sets correct locations of macro if / else / elsif" do
+        parser = Parser.new(<<-CR)
+          {% if 1 == val %}
+            "one!"
+            "bar"
+          {% elsif 2 == val %}
+            "not one"
+            "bar"
+          {% else %}
+            "biz"
+            "blah"
+          {% end %}
+        CR
+
+        node = parser.parse.as MacroIf
+
+        location = node.cond.location.should_not be_nil
+        location.line_number.should eq 1
+        location = node.cond.end_location.should_not be_nil
+        location.line_number.should eq 1
+
+        location = node.then.location.should_not be_nil
+        location.line_number.should eq 1
+        location = node.then.end_location.should_not be_nil
+        location.line_number.should eq 4
+
+        location = node.else.location.should_not be_nil
+        location.line_number.should eq 4
+        location = node.else.end_location.should_not be_nil
+        location.line_number.should eq 10
+      end
+
       it "sets correct location of trailing ensure" do
         parser = Parser.new("foo ensure bar")
         node = parser.parse.as(ExceptionHandler)

src/compiler/crystal/syntax/parser.cr

@@ -3211,7 +3211,7 @@ module Crystal
 
         case @token.type
         when .macro_literal?
-          pieces << MacroLiteral.new(@token.value.to_s)
+          pieces << MacroLiteral.new(@token.value.to_s).at(@token.location).at_end(token_end_location)
         when .macro_expression_start?
           pieces << MacroExpression.new(parse_macro_expression)
           check_macro_expression_end
@@ -3475,7 +3475,8 @@ module Crystal
         end
       when Keyword::ELSIF
         unexpected_token if is_unless
-        a_else = parse_macro_if(start_location, macro_state, false)
+        start_loc = @token.location
+        a_else = parse_macro_if(start_location, macro_state, false).at(start_loc)
 
         if check_end
           check_ident :end