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-rw-r--r--src/lux/analyser.clj1
-rw-r--r--src/lux/analyser/module.clj36
-rw-r--r--src/lux/compiler/cache.clj4
-rw-r--r--src/lux/compiler/lux.clj10
-rw-r--r--src/lux/compiler/module.clj2
5 files changed, 40 insertions, 13 deletions
diff --git a/src/lux/analyser.clj b/src/lux/analyser.clj
index 4d68ab0d5..d4b90cc3a 100644
--- a/src/lux/analyser.clj
+++ b/src/lux/analyser.clj
@@ -21,6 +21,7 @@
;; [Utils]
(defn analyse-variant+ [analyse exo-type ident values]
(|do [[module tag-name] (&/normalize ident)
+ _ (&&module/ensure-can-see-tag module tag-name)
idx (&&module/tag-index module tag-name)
group (&&module/tag-group module tag-name)
:let [is-last? (= idx (dec (&/|length group)))]]
diff --git a/src/lux/analyser/module.clj b/src/lux/analyser/module.clj
index 1f980ba2c..23696dced 100644
--- a/src/lux/analyser/module.clj
+++ b/src/lux/analyser/module.clj
@@ -92,14 +92,20 @@
(fail* (str "[Analyser Error] Unknown module: " module)))))
(defn type-def [module name]
- "(-> Text Text (Lux Type))"
+ "(-> Text Text (Lux [Bool Type]))"
(fn [state]
(if-let [$module (->> state (&/get$ &/$modules) (&/|get module))]
(if-let [$def (->> $module (&/get$ $defs) (&/|get name))]
(|let [[?type ?meta ?value] $def]
(|case (&meta/meta-get &meta/type?-tag ?meta)
(&/$Some _)
- (return* state ?value)
+ (return* state (&/T [(|case (&meta/meta-get &meta/export?-tag ?meta)
+ (&/$Some _)
+ true
+
+ _
+ false)
+ ?value]))
_
(fail* (str "[Analyser Error] Not a type: " (&/ident->text (&/T [module name]))))))
@@ -218,8 +224,8 @@
(str "[Analyser Error] Can't re-declare type: " (&/ident->text (&/T [module name]))))]
(return nil)))
-(defn declare-tags [module tag-names type]
- "(-> Text (List Text) Type (Lux Null))"
+(defn declare-tags [module tag-names was-exported? type]
+ "(-> Text (List Text) Bool Type (Lux Null))"
(|do [_ (ensure-undeclared-tags module tag-names)
type-name (&type/type-name type)
:let [[_module _name] type-name]
@@ -235,22 +241,36 @@
#(->> %
(&/set$ $tags (&/fold (fn [table idx+tag-name]
(|let [[idx tag-name] idx+tag-name]
- (&/|put tag-name (&/T [idx tags type]) table)))
+ (&/|put tag-name (&/T [idx tags was-exported? type]) table)))
(&/get$ $tags %)
(&/enumerate tag-names)))
- (&/update$ $types (partial &/|put _name (&/T [tags type]))))
+ (&/update$ $types (partial &/|put _name (&/T [tags was-exported? type]))))
=modules))
state)
nil))
(fail* (str "[Lux Error] Unknown module: " module))))))
+(defn ensure-can-see-tag [module tag-name]
+ "(-> Text Text (Lux Unit))"
+ (|do [current-module &/get-module-name]
+ (fn [state]
+ (if-let [=module (->> state (&/get$ &/$modules) (&/|get module))]
+ (if-let [^objects idx+tags+exported+type (&/|get tag-name (&/get$ $tags =module))]
+ (|let [[?idx ?tags ?exported ?type] idx+tags+exported+type]
+ (if (or ?exported
+ (= module current-module))
+ (return* state &/unit-tag)
+ (fail* (str "Can't access tag #" (&/ident->text (&/T [module tag-name])) " from module " current-module))))
+ (fail* (str "[Module Error] Unknown tag: " (&/ident->text (&/T [module tag-name])))))
+ (fail* (str "[Module Error] Unknown module: " module))))))
+
(do-template [<name> <part> <doc>]
(defn <name> [module tag-name]
<doc>
(fn [state]
(if-let [=module (->> state (&/get$ &/$modules) (&/|get module))]
- (if-let [^objects idx+tags+type (&/|get tag-name (&/get$ $tags =module))]
- (|let [[?idx ?tags ?type] idx+tags+type]
+ (if-let [^objects idx+tags+exported+type (&/|get tag-name (&/get$ $tags =module))]
+ (|let [[?idx ?tags ?exported ?type] idx+tags+exported+type]
(return* state <part>))
(fail* (str "[Module Error] Unknown tag: " (&/ident->text (&/T [module tag-name])))))
(fail* (str "[Module Error] Unknown module: " module)))))
diff --git a/src/lux/compiler/cache.clj b/src/lux/compiler/cache.clj
index 93f8bf3e9..bd463635d 100644
--- a/src/lux/compiler/cache.clj
+++ b/src/lux/compiler/cache.clj
@@ -146,8 +146,8 @@
(&/->list defs)))
_ (&/map% (fn [group]
(|let [[_type _tags] group]
- (|do [=type (&a-module/type-def module _type)]
- (&a-module/declare-tags module _tags =type))))
+ (|do [[was-exported? =type] (&a-module/type-def module _type)]
+ (&a-module/declare-tags module _tags was-exported? =type))))
tag-groups)]
(return true))))
redo-cache)))
diff --git a/src/lux/compiler/lux.clj b/src/lux/compiler/lux.clj
index 3003a0335..8f784cc11 100644
--- a/src/lux/compiler/lux.clj
+++ b/src/lux/compiler/lux.clj
@@ -206,7 +206,13 @@
_ (&a-module/define module-name ?name def-type def-meta def-value)
_ (|case (&/T [is-type? (&a-meta/meta-get &a-meta/tags-tag def-meta)])
[true (&/$Some (&/$ListM tags*))]
- (|do [tags (&/map% (fn [tag*]
+ (|do [:let [was-exported? (|case (&a-meta/meta-get &a-meta/export?-tag def-meta)
+ (&/$Some _)
+ true
+
+ _
+ false)]
+ tags (&/map% (fn [tag*]
(|case tag*
(&/$TextM tag)
(return tag)
@@ -214,7 +220,7 @@
_
(fail "[Compiler Error] Incorrect format for tags.")))
tags*)
- _ (&a-module/declare-tags module-name tags def-value)]
+ _ (&a-module/declare-tags module-name tags was-exported? def-value)]
(return nil))
[false (&/$Some _)]
diff --git a/src/lux/compiler/module.clj b/src/lux/compiler/module.clj
index 23635f5bc..03bc311f2 100644
--- a/src/lux/compiler/module.clj
+++ b/src/lux/compiler/module.clj
@@ -19,7 +19,7 @@
(|do [module &/get-current-module]
(return (&/|map (fn [pair]
(|case pair
- [name [tags _]]
+ [name [tags exported? _]]
(&/T [name (&/|map (fn [tag]
(|let [[t-prefix t-name] tag]
t-name))