diff --git a/src/builder_type_t.rs b/src/builder_type_t.rs
new file mode 100644
index 0000000..caacc5b
--- /dev/null
+++ b/src/builder_type_t.rs
@@ -0,0 +1,58 @@
+#[macro_export]
+macro_rules! builder_type_t {
+    (
+        $name:ident
+        $(<
+            $generic0Name:ty $(, $genericNName:ty)*
+        >)?
+
+    ) => {
+        $name
+        <
+            'source, 'pos, 'builder, C, P, CS
+            $(, $generic0Name $(, $genericNName)*)?
+        >
+
+    };
+    (
+        $name:ident
+        <
+            $lifetime0Name:lifetime $(, $lifetimeNName:lifetime)*
+            $(, $genericNName:ty)*
+        >
+    ) => {
+        $name
+        <
+            'source, 'pos, 'builder, $lifetime0Name $(, $lifetimeNName)*,
+            C, P, CS $(, $genericNName)*
+        >
+    };
+
+    (
+        impl $name:ident
+        $(<
+            $generic0Name:ty $(, $genericNName:ty)*
+        >)?
+
+    ) => {
+        impl $name
+        <
+            'source, 'pos, 'builder, C, P, CS
+            $(, $generic0Name $(, $genericNName)*)?
+        >
+
+    };
+    (
+        impl $name:ident
+        <
+            $lifetime0Name:lifetime $(, $lifetimeNName:lifetime)*
+            $(, $genericNName:ty)*
+        >
+    ) => {
+        impl $name
+        <
+            'source, 'pos, 'builder, $lifetime0Name $(, $lifetimeNName)*,
+            C, P, CS $(, $genericNName)*
+        >
+    };
+}
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index a669efb..a0ac0a3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,6 @@
 mod _keyword_impls;
 mod parser_func;
+mod builder_type_t;
 
 pub trait Predicate<C> {
     fn check(&mut self, chr: C) -> bool;