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-rw-r--r--luxc/src/lux/analyser.clj5
-rw-r--r--luxc/src/lux/analyser/case.clj19
-rw-r--r--luxc/src/lux/analyser/lux.clj8
3 files changed, 15 insertions, 17 deletions
diff --git a/luxc/src/lux/analyser.clj b/luxc/src/lux/analyser.clj
index 4522b9aea..abdd0acd7 100644
--- a/luxc/src/lux/analyser.clj
+++ b/luxc/src/lux/analyser.clj
@@ -182,8 +182,9 @@
(&&common/analyse-proc analyse exo-type ?procedure parameters))))
(&/$Nat idx)
- (&/with-analysis-meta cursor exo-type
- (&&lux/analyse-variant analyse (&/$Right exo-type) idx nil parameters))
+ (|let [(&/$Cons [_ (&/$Bit ?right)] parameters*) parameters]
+ (&/with-analysis-meta cursor exo-type
+ (&&lux/analyse-variant analyse (&/$Right exo-type) (if ?right (inc idx) idx) ?right parameters*)))
(&/$Tag ?ident)
(&/with-analysis-meta cursor exo-type
diff --git a/luxc/src/lux/analyser/case.clj b/luxc/src/lux/analyser/case.clj
index 4d7b4ccca..d059ce189 100644
--- a/luxc/src/lux/analyser/case.clj
+++ b/luxc/src/lux/analyser/case.clj
@@ -360,15 +360,16 @@
[=test =kont] (analyse-pattern &/$None case-type unit-tuple kont)]
(return (&/T [($VariantTestAC (&/T [idx (&/|length group) =test])) =kont])))
- (&/$Form (&/$Cons [_ (&/$Nat idx)] ?values))
- (|do [value-type* (adjust-type value-type)
- case-type (&type/sum-at idx value-type*)
- [=test =kont] (case (int (&/|length ?values))
- 0 (analyse-pattern &/$None case-type unit-tuple kont)
- 1 (analyse-pattern &/$None case-type (&/|head ?values) kont)
- ;; 1+
- (analyse-pattern &/$None case-type (&/T [(&/T ["" -1 -1]) (&/$Tuple ?values)]) kont))]
- (return (&/T [($VariantTestAC (&/T [idx (&/|length (&type/flatten-sum value-type*)) =test])) =kont])))
+ (&/$Form (&/$Cons [_ (&/$Nat idx)] (&/$Cons [_ (&/$Bit right?)] ?values)))
+ (let [idx (if right? (inc idx) idx)]
+ (|do [value-type* (adjust-type value-type)
+ case-type (&type/sum-at idx value-type*)
+ [=test =kont] (case (int (&/|length ?values))
+ 0 (analyse-pattern &/$None case-type unit-tuple kont)
+ 1 (analyse-pattern &/$None case-type (&/|head ?values) kont)
+ ;; 1+
+ (analyse-pattern &/$None case-type (&/T [(&/T ["" -1 -1]) (&/$Tuple ?values)]) kont))]
+ (return (&/T [($VariantTestAC (&/T [idx (&/|length (&type/flatten-sum value-type*)) =test])) =kont]))))
(&/$Form (&/$Cons [_ (&/$Tag ?ident)] ?values))
(|do [[=module =name] (&&/resolved-ident ?ident)
diff --git a/luxc/src/lux/analyser/lux.clj b/luxc/src/lux/analyser/lux.clj
index fee56b624..eb47ac039 100644
--- a/luxc/src/lux/analyser/lux.clj
+++ b/luxc/src/lux/analyser/lux.clj
@@ -213,15 +213,11 @@
(|case exo-type*
(&/$Sum _)
(|do [vtype (&type/sum-at idx exo-type*)
- :let [num-variant-types (&/|length (&type/flatten-sum exo-type*))
- is-last?* (if (nil? is-last?)
- (= idx (dec num-variant-types))
- is-last?)]
=value (analyse-variant-body analyse vtype ?values)
_cursor &/cursor]
- (if (= 1 num-variant-types)
+ (if (= 1 (&/|length (&type/flatten-sum exo-type*)))
(return (&/|list =value))
- (return (&/|list (&&/|meta exo-type _cursor (&&/$variant idx is-last?* =value))))
+ (return (&/|list (&&/|meta exo-type _cursor (&&/$variant idx is-last? =value))))
))
(&/$UnivQ _)