Better.

2 files changed, 8 insertions, 1 deletions

diff --git a/interpreter.py b/interpreter.py
index 18cf518..318f7b3 100644
--- a/interpreter.py
+++ b/interpreter.py
@@ -1194,7 +1194,7 @@ class Interpreter():
         if isinstance(args, nodes.Arguments):
             args = args.arguments
         for (i, arg) in enumerate(args):
-            arg = self.to_native(arg)
+            arg = self.to_native(self.reduce_single(arg))
             if isinstance(arg, bool): # Python boolean is upper case.
                 arg = str(arg).lower()
             templ = templ.replace('@{}@'.format(i), str(arg))
diff --git a/test cases/common/42 string formatting/meson.build b/test cases/common/42 string formatting/meson.build
index 9038ff8..4e7cc1a 100644
--- a/test cases/common/42 string formatting/meson.build
+++ b/test cases/common/42 string formatting/meson.build
@@ -13,3 +13,10 @@ endif
 if '@0@'.format(true) != 'true'
   error('String boolean formatting is broken.')
 endif
+
+templ2 = '@0@'
+subs2 = '42'
+
+if templ2.format(subs2) != '42'
+  error('String formatting with variables is broken.')
+endif