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-rw-r--r--src/content/en/pastebins/2019/12/29/raku-tuple-type.adoc28
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diff --git a/src/content/en/pastebins/2019/12/29/raku-tuple-type.adoc b/src/content/en/pastebins/2019/12/29/raku-tuple-type.adoc
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+= Raku tuple type annotation
+:categories: raku programming-languages
+
+[source,raku]
+----
+# Single Str return value: this works
+sub f1(Str $in --> Str) {
+ $in;
+}
+
+# Tuple of Str as return value: this works
+sub f2(Str $in) {
+ ($in, $in);
+}
+
+# Tuple of Str as return value with type annotation: this doesn't works
+sub f2(Str $in --> (Str, Str)) {
+ ($in, $in);
+}
+----
+
+Error log is:
+
+[source,raku]
+----
+===SORRY!=== Error while compiling /path/to/my/file
+Malformed return value
+----