Code compiles again! (although, I had to employ a hack for "fold", as function self-calls are broken).

Also fixed several small bugs, including the one that caused ".apply" to never make progress (always returned a function with count 0).
Also fixed an issue with scopes that caused class-names to be generated improperly.

11 files changed, 272 insertions, 110 deletions

diff --git a/src/lux/analyser.clj b/src/lux/analyser.clj
index 115d21d6f..faa41913f 100644
--- a/src/lux/analyser.clj
+++ b/src/lux/analyser.clj
@@ -127,10 +127,10 @@
     (&&host/analyse-jvm-drem analyse-ast ?x ?y)
 
     ;; Fields & methods
-    [::&parser/Form ([[::&parser/Ident "jvm;getstatic"] [::&parser/Ident ?class] [::&parser/Ident ?field]] :seq)]
+    [::&parser/Form ([[::&parser/Ident "jvm;getstatic"] [::&parser/Ident ?class] [::&parser/Text ?field]] :seq)]
     (&&host/analyse-jvm-getstatic analyse-ast ?class ?field)
 
-    [::&parser/Form ([[::&parser/Ident "jvm;getfield"] [::&parser/Ident ?class] [::&parser/Ident ?field] ?object] :seq)]
+    [::&parser/Form ([[::&parser/Ident "jvm;getfield"] [::&parser/Ident ?class] [::&parser/Text ?field] ?object] :seq)]
     (&&host/analyse-jvm-getfield analyse-ast ?class ?field ?object)
 
     [::&parser/Form ([[::&parser/Ident "jvm;invokestatic"] [::&parser/Ident ?class] [::&parser/Text ?method] [::&parser/Tuple ?classes] [::&parser/Tuple ?args]] :seq)]
@@ -167,7 +167,7 @@
   (match token
     [::&parser/Form ([[::&parser/Tag ?tag] & ?values] :seq)]
     (exec [:let [_ (prn 'PRE-ASSERT)]
-           :let [_ (assert (= 1 (count ?values)) "[Analyser Error] Can only tag 1 value.")]
+           :let [_ (assert (= 1 (count ?values)) (str "[Analyser Error] Can only tag 1 value: " (pr-str token)))]
            :let [_ (prn 'POST-ASSERT)]
            :let [?value (first ?values)]
            =value (&&/analyse-1 analyse-ast ?value)
@@ -175,9 +175,14 @@
       (return (list [::&&/Expression [::&&/variant ?tag =value] [::&type/Variant (list [?tag =value-type])]])))
     
     [::&parser/Form ([?fn & ?args] :seq)]
-    (try-all-m [(&&lux/analyse-call analyse-ast ?fn ?args)
-                (analyse-basic-ast analyse-ast token)])
+    (fn [state]
+      (match ((&&/analyse-1 analyse-ast ?fn) state)
+        [::&/ok [state* =fn]]
+        ((&&lux/analyse-call analyse-ast =fn ?args) state*)
 
+        _
+        ((analyse-basic-ast analyse-ast token) state)))
+    
     _
     (analyse-basic-ast analyse-ast token)))
 
diff --git a/src/lux/analyser/env.clj b/src/lux/analyser/env.clj
index c68641f7e..55205e597 100644
--- a/src/lux/analyser/env.clj
+++ b/src/lux/analyser/env.clj
@@ -15,10 +15,13 @@
     (let [old-mappings (-> state ::&/local-envs first (get-in [:locals :mappings]))
           =return (body (update-in state [::&/local-envs]
                                    (fn [[top & stack]]
-                                     (prn 'env/with-local name mode (get-in top [:locals :counter]))
+                                     ;; (prn 'env/with-local name mode (get-in top [:locals :counter]))
                                      (let [bound-unit (case mode
-                                                        :self  [::&&/self (list)]
-                                                        :local [::&&/local (get-in top [:locals :counter])])]
+                                                        :local [::&&/local (get-in top [:locals :counter])]
+
+                                                        ;; else
+                                                        [::&&/self (second mode) (list)]
+                                                        )]
                                        (cons (-> top
                                                  (update-in [:locals :counter] inc)
                                                  (assoc-in [:locals :mappings name] [::&&/Expression bound-unit type]))
diff --git a/src/lux/analyser/host.clj b/src/lux/analyser/host.clj
index fd4444671..ddc91d2b9 100644
--- a/src/lux/analyser/host.clj
+++ b/src/lux/analyser/host.clj
@@ -16,18 +16,19 @@
     (return ?ident)
 
     _
-    (fail "")))
+    (fail "[Analyser Error] Can't extract Ident.")))
 
 ;; [Resources]
 (do-template [<name> <ident> <output-tag> <wrapper-class>]
-  (defn <name> [analyse ?x ?y]
-    (exec [:let [=type [::&type/Data <wrapper-class>]]
-           [=x =y] (&&/analyse-2 analyse ?x ?y)
-           =x-type (&&/expr-type =x)
-           =y-type (&&/expr-type =y)
-           _ (&type/solve =type =x-type)
-           _ (&type/solve =type =y-type)]
-      (return (list [::&&/Expression [<output-tag> =x =y] =type]))))
+  (let [elem-type [::&type/Data <wrapper-class>]]
+    (defn <name> [analyse ?x ?y]
+      (exec [[=x =y] (&&/analyse-2 analyse ?x ?y)
+             ;; =x-type (&&/expr-type =x)
+             ;; =y-type (&&/expr-type =y)
+             ;; _ (&type/solve elem-type =x-type)
+             ;; _ (&type/solve elem-type =y-type)
+             ]
+        (return (list [::&&/Expression [<output-tag> =x =y] elem-type])))))
 
   analyse-jvm-iadd "jvm;iadd" ::&&/jvm-iadd "java.lang.Integer"
   analyse-jvm-isub "jvm;isub" ::&&/jvm-isub "java.lang.Integer"
@@ -56,13 +57,15 @@
 
 (defn analyse-jvm-getstatic [analyse ?class ?field]
   (exec [=class (&host/full-class-name ?class)
-         =type (&host/lookup-static-field =class ?field)]
+         :let [_ (prn 'analyse-jvm-getstatic/=class =class)]
+         =type (&host/lookup-static-field =class ?field)
+         :let [_ (prn 'analyse-jvm-getstatic/=type =type)]]
     (return (list [::&&/Expression [::&&/jvm-getstatic =class ?field] =type]))))
 
 (defn analyse-jvm-getfield [analyse ?class ?field ?object]
   (exec [=class (&host/full-class-name ?class)
          =type (&host/lookup-static-field =class ?field)
-         =object (&&/analyse-1 ?object)]
+         =object (&&/analyse-1 analyse ?object)]
     (return (list [::&&/Expression [::&&/jvm-getfield =class ?field =object] =type]))))
 
 (defn analyse-jvm-invokestatic [analyse ?class ?method ?classes ?args]
@@ -74,10 +77,15 @@
 
 (defn analyse-jvm-invokevirtual [analyse ?class ?method ?classes ?object ?args]
   (exec [=class (&host/full-class-name ?class)
+         :let [_ (prn 'analyse-jvm-invokevirtual/=class =class)]
          =classes (map-m &host/extract-jvm-param ?classes)
-         =return (&host/lookup-virtual-method =class ?method =classes)
-         =object (&&/analyse-1 ?object)
-         =args (mapcat-m analyse ?args)]
+         :let [_ (prn 'analyse-jvm-invokevirtual/=classes =classes)]
+         [=method-args =return] (&host/lookup-virtual-method =class ?method =classes)
+         :let [_ (prn 'analyse-jvm-invokevirtual/=return =return)]
+         =object (&&/analyse-1 analyse ?object)
+         :let [_ (prn 'analyse-jvm-invokevirtual/=object =object)]
+         =args (mapcat-m analyse ?args)
+         :let [_ (prn 'analyse-jvm-invokevirtual/=args =args)]]
     (return (list [::&&/Expression [::&&/jvm-invokevirtual =class ?method =classes =object =args] =return]))))
 
 (defn analyse-jvm-new [analyse ?class ?classes ?args]
@@ -91,12 +99,12 @@
     (return (list [::&&/Expression [::&&/jvm-new-array =class ?length] [::&type/Array [::&type/Data =class]]]))))
 
 (defn analyse-jvm-aastore [analyse ?array ?idx ?elem]
-  (exec [[=array =elem] (&&/analyse-2 ?array ?elem)
+  (exec [[=array =elem] (&&/analyse-2 analyse ?array ?elem)
          =array-type (&&/expr-type =array)]
     (return (list [::&&/Expression [::&&/jvm-aastore =array ?idx =elem] =array-type]))))
 
 (defn analyse-jvm-aaload [analyse ?array ?idx]
-  (exec [=array (&&/analyse-1 ?array)
+  (exec [=array (&&/analyse-1 analyse ?array)
          =array-type (&&/expr-type =array)]
     (return (list [::&&/Expression [::&&/jvm-aaload =array ?idx] =array-type]))))
 
@@ -107,7 +115,7 @@
                             (return [?class ?field-name])
                             
                             _
-                            (fail "")))
+                            (fail "[Analyser Error] Fields must be Tuple2 of [Ident, Ident]")))
                         ?fields)
          :let [=fields (into {} (for [[class field] ?fields]
                                   [field {:access :public
@@ -126,7 +134,7 @@
                                (return [?member-name [?inputs ?output]]))
                              
                              _
-                             (fail "")))
+                             (fail "[Analyser Error] Invalid method signature!")))
                          ?members)
          :let [=methods (into {} (for [[method [inputs output]] ?members]
                                    [method {:access :public
diff --git a/src/lux/analyser/lambda.clj b/src/lux/analyser/lambda.clj
index b20eb8e19..c0af66050 100644
--- a/src/lux/analyser/lambda.clj
+++ b/src/lux/analyser/lambda.clj
@@ -10,7 +10,7 @@
 (defn with-lambda [self self-type arg arg-type body]
   (&/with-closure
     (exec [scope-name &/get-scope-name]
-      (&env/with-local self :self self-type
+      (&env/with-local self [:self scope-name] self-type
         (&env/with-local arg :local arg-type
           (exec [=return body
                  =captured &env/captured-vars]
@@ -24,7 +24,7 @@
                                                   (update-in [:counter] inc)
                                                   (assoc-in [:mappings ident] register*)))])))
 
-(defn raise-expr [arg syntax]
+(defn raise-expr [out-scope arg syntax]
   (match syntax
     [::&&/Expression ?form ?type]
     (match ?form
@@ -44,10 +44,10 @@
       syntax
       
       [::&&/tuple ?members]
-      [::&&/Expression [::&&/tuple (map (partial raise-expr arg) ?members)] ?type]
+      [::&&/Expression [::&&/tuple (map (partial raise-expr out-scope arg) ?members)] ?type]
 
       [::&&/variant ?tag ?value]
-      [::&&/Expression [::&&/variant ?tag (raise-expr arg ?value)] ?type]
+      [::&&/Expression [::&&/variant ?tag (raise-expr out-scope arg ?value)] ?type]
       
       [::&&/local ?idx]
       [::&&/Expression [::&&/local (inc ?idx)] ?type]
@@ -55,102 +55,234 @@
       [::&&/captured _ _ ?source]
       ?source
 
-      [::&&/self ?curried]
-      [::&&/Expression [::&&/self (cons arg (map (partial raise-expr arg) ?curried))] ?type]
+      [::&&/self ?scope ?curried]
+      [::&&/Expression [::&&/self out-scope (cons arg (map (partial raise-expr out-scope arg) ?curried))] ?type]
 
       [::&&/global _ _]
       syntax
 
       [::&&/case ?variant ?base ?num-bindings ?branches]
-      [::&&/Expression [::&&/case (raise-expr arg ?variant) (inc ?base) ?num-bindings
+      [::&&/Expression [::&&/case (raise-expr out-scope arg ?variant) (inc ?base) ?num-bindings
                         (for [[?pattern ?body] ?branches]
-                          [?pattern (raise-expr arg ?body)])]
+                          [?pattern (raise-expr out-scope arg ?body)])]
        ?type]
 
       [::&&/lambda ?scope ?captured ?args ?value]
-      [::&&/Expression [::&&/lambda (pop ?scope)
+      [::&&/Expression [::&&/lambda (rest ?scope)
                         (into {} (for [[?name ?sub-syntax] ?captured]
-                                   [?name (raise-expr arg ?sub-syntax)]))
+                                   [?name (raise-expr out-scope arg ?sub-syntax)]))
                         ?args
                         ?value]
        ?type]
 
       [::&&/call ?func ?args]
-      [::&&/Expression [::&&/call (raise-expr arg ?func) (map (partial raise-expr arg) ?args)] ?type]
+      [::&&/Expression [::&&/call (raise-expr out-scope arg ?func) (map (partial raise-expr out-scope arg) ?args)] ?type]
 
       [::&&/exec ?asts]
-      [::&&/Expression [::&&/exec (map (partial raise-expr arg) ?asts)] ?type]
+      [::&&/Expression [::&&/exec (map (partial raise-expr out-scope arg) ?asts)] ?type]
 
       [::&&/jvm-getstatic _ _]
       syntax
       
       [::&&/jvm-invokevirtual ?class ?method ?arg-classes ?obj ?args]
       [::&&/Expression [::&&/jvm-invokevirtual ?class ?method ?arg-classes
-                        (raise-expr arg ?obj)
-                        (map (partial raise-expr arg) ?args)]
+                        (raise-expr out-scope arg ?obj)
+                        (map (partial raise-expr out-scope arg) ?args)]
        ?type]
 
       ;; Integer arithmetic
       [::&&/jvm-iadd ?x ?y]
-      [::&&/Expression [::&&/jvm-iadd (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-iadd (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-isub ?x ?y]
-      [::&&/Expression [::&&/jvm-isub (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-isub (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-imul ?x ?y]
-      [::&&/Expression [::&&/jvm-imul (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-imul (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-idiv ?x ?y]
-      [::&&/Expression [::&&/jvm-idiv (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-idiv (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-irem ?x ?y]
-      [::&&/Expression [::&&/jvm-irem (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-irem (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       ;; Long arithmetic
       [::&&/jvm-ladd ?x ?y]
-      [::&&/Expression [::&&/jvm-ladd (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-ladd (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-lsub ?x ?y]
-      [::&&/Expression [::&&/jvm-lsub (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-lsub (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-lmul ?x ?y]
-      [::&&/Expression [::&&/jvm-lmul (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-lmul (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-ldiv ?x ?y]
-      [::&&/Expression [::&&/jvm-ldiv (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-ldiv (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-lrem ?x ?y]
-      [::&&/Expression [::&&/jvm-lrem (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-lrem (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       ;; Float arithmetic
       [::&&/jvm-fadd ?x ?y]
-      [::&&/Expression [::&&/jvm-fadd (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-fadd (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-fsub ?x ?y]
-      [::&&/Expression [::&&/jvm-fsub (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-fsub (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-fmul ?x ?y]
-      [::&&/Expression [::&&/jvm-fmul (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-fmul (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-fdiv ?x ?y]
-      [::&&/Expression [::&&/jvm-fdiv (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-fdiv (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-frem ?x ?y]
-      [::&&/Expression [::&&/jvm-frem (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-frem (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       ;; Double arithmetic
       [::&&/jvm-dadd ?x ?y]
-      [::&&/Expression [::&&/jvm-dadd (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-dadd (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-dsub ?x ?y]
-      [::&&/Expression [::&&/jvm-dsub (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-dsub (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-dmul ?x ?y]
-      [::&&/Expression [::&&/jvm-dmul (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-dmul (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-ddiv ?x ?y]
-      [::&&/Expression [::&&/jvm-ddiv (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-ddiv (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
 
       [::&&/jvm-drem ?x ?y]
-      [::&&/Expression [::&&/jvm-drem (raise-expr arg ?x) (raise-expr arg ?y)] ?type]
+      [::&&/Expression [::&&/jvm-drem (raise-expr out-scope arg ?x) (raise-expr out-scope arg ?y)] ?type]
       )))
+
+(defn re-scope [out-scope syntax]
+  (let [partial-f (partial re-scope out-scope)]
+    (match syntax
+      [::&&/Expression ?form ?type]
+      (match ?form
+        [::&&/bool ?value]
+        syntax
+
+        [::&&/int ?value]
+        syntax
+
+        [::&&/real ?value]
+        syntax
+
+        [::&&/char ?value]
+        syntax
+
+        [::&&/text ?value]
+        syntax
+        
+        [::&&/tuple ?members]
+        [::&&/Expression [::&&/tuple (map partial-f ?members)] ?type]
+
+        [::&&/variant ?tag ?value]
+        [::&&/Expression [::&&/variant ?tag (partial-f ?value)] ?type]
+        
+        [::&&/local ?idx]
+        [::&&/Expression [::&&/local ?idx] ?type]
+        
+        [::&&/captured _ _ ?source]
+        ?source
+
+        [::&&/self ?scope ?curried]
+        [::&&/Expression [::&&/self out-scope (map partial-f ?curried)] ?type]
+
+        [::&&/global _ _]
+        syntax
+
+        [::&&/case ?variant ?base ?num-bindings ?branches]
+        [::&&/Expression [::&&/case (partial-f ?variant) ?base ?num-bindings
+                          (for [[?pattern ?body] ?branches]
+                            [?pattern (partial-f ?body)])]
+         ?type]
+
+        [::&&/lambda ?scope ?captured ?args ?value]
+        [::&&/Expression [::&&/lambda (rest ?scope)
+                          (into {} (for [[?name ?sub-syntax] ?captured]
+                                     [?name (partial-f ?sub-syntax)]))
+                          ?args
+                          ?value]
+         ?type]
+
+        [::&&/call ?func ?args]
+        [::&&/Expression [::&&/call (partial-f ?func) (map partial-f ?args)] ?type]
+
+        [::&&/exec ?asts]
+        [::&&/Expression [::&&/exec (map partial-f ?asts)] ?type]
+
+        [::&&/jvm-getstatic _ _]
+        syntax
+        
+        [::&&/jvm-invokevirtual ?class ?method ?arg-classes ?obj ?args]
+        [::&&/Expression [::&&/jvm-invokevirtual ?class ?method ?arg-classes
+                          (partial-f ?obj)
+                          (map partial-f ?args)]
+         ?type]
+
+        ;; Integer arithmetic
+        [::&&/jvm-iadd ?x ?y]
+        [::&&/Expression [::&&/jvm-iadd (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-isub ?x ?y]
+        [::&&/Expression [::&&/jvm-isub (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-imul ?x ?y]
+        [::&&/Expression [::&&/jvm-imul (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-idiv ?x ?y]
+        [::&&/Expression [::&&/jvm-idiv (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-irem ?x ?y]
+        [::&&/Expression [::&&/jvm-irem (partial-f ?x) (partial-f ?y)] ?type]
+
+        ;; Long arithmetic
+        [::&&/jvm-ladd ?x ?y]
+        [::&&/Expression [::&&/jvm-ladd (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-lsub ?x ?y]
+        [::&&/Expression [::&&/jvm-lsub (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-lmul ?x ?y]
+        [::&&/Expression [::&&/jvm-lmul (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-ldiv ?x ?y]
+        [::&&/Expression [::&&/jvm-ldiv (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-lrem ?x ?y]
+        [::&&/Expression [::&&/jvm-lrem (partial-f ?x) (partial-f ?y)] ?type]
+
+        ;; Float arithmetic
+        [::&&/jvm-fadd ?x ?y]
+        [::&&/Expression [::&&/jvm-fadd (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-fsub ?x ?y]
+        [::&&/Expression [::&&/jvm-fsub (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-fmul ?x ?y]
+        [::&&/Expression [::&&/jvm-fmul (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-fdiv ?x ?y]
+        [::&&/Expression [::&&/jvm-fdiv (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-frem ?x ?y]
+        [::&&/Expression [::&&/jvm-frem (partial-f ?x) (partial-f ?y)] ?type]
+
+        ;; Double arithmetic
+        [::&&/jvm-dadd ?x ?y]
+        [::&&/Expression [::&&/jvm-dadd (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-dsub ?x ?y]
+        [::&&/Expression [::&&/jvm-dsub (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-dmul ?x ?y]
+        [::&&/Expression [::&&/jvm-dmul (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-ddiv ?x ?y]
+        [::&&/Expression [::&&/jvm-ddiv (partial-f ?x) (partial-f ?y)] ?type]
+
+        [::&&/jvm-drem ?x ?y]
+        [::&&/Expression [::&&/jvm-drem (partial-f ?x) (partial-f ?y)] ?type]
+        ))))
diff --git a/src/lux/analyser/lux.clj b/src/lux/analyser/lux.clj
index 4dc949d05..b80321820 100644
--- a/src/lux/analyser/lux.clj
+++ b/src/lux/analyser/lux.clj
@@ -47,9 +47,8 @@
         ))
     ))
 
-(defn analyse-call [analyse ?fn ?args]
-  (exec [=fn (&&/analyse-1 analyse ?fn)
-         loader &/loader]
+(defn analyse-call [analyse =fn ?args]
+  (exec [loader &/loader]
     (match =fn
       [::&&/Expression =fn-form =fn-type]
       (match =fn-form
@@ -62,29 +61,22 @@
                   _ (doseq [ast macro-expansion]
                       (prn '=> ast))]
               (mapcat-m analyse macro-expansion))
-            (exec [=args (mapcat-m analyse ?args)
-                   :let [[needs-num =return-type] (match =fn-type
-                                                    [::&type/function ?fargs ?freturn]
-                                                    (let [needs-num (count ?fargs)
-                                                          provides-num (count =args)]
-                                                      (if (> needs-num provides-num)
-                                                        [needs-num [::&type/function (drop provides-num ?fargs) ?freturn]]
-                                                        [needs-num &type/+dont-care-type+])))]]
-              (return (list [::&&/Expression [::&&/static-call needs-num =fn =args] =return-type])))))
+            (exec [=args (mapcat-m analyse ?args)]
+              (return (list [::&&/Expression [::&&/call =fn =args] &type/+dont-care-type+])))))
 
         _
         (exec [=args (mapcat-m analyse ?args)]
           (return (list [::&&/Expression [::&&/call =fn =args] &type/+dont-care-type+]))))
 
       :else
-      (fail "Can't call something without a type."))
+      (fail "[Analyser Error] Can't call a statement!"))
     ))
 
 (defn analyse-case [analyse ?variant ?branches]
   (prn 'analyse-case ?variant ?branches)
   (exec [:let [num-branches (count ?branches)]
          _ (assert! (and (> num-branches 0) (even? num-branches))
-                    "Unbalanced branches in \"case'\" expression.")
+                    "[Analyser Error] Unbalanced branches in \"case'\" expression.")
          :let [branches (partition 2 ?branches)
                locals-per-branch (map (comp &&case/locals first) branches)
                max-locals (reduce max 0 (map count locals-per-branch))]
@@ -114,7 +106,7 @@
                         (&type/clean =lambda-type))
          :let [=lambda-form (match =body
                               [::&&/Expression [::&&/lambda ?sub-scope ?sub-captured ?sub-args ?sub-body] _]
-                              [::&&/lambda =scope =captured (cons ?arg ?sub-args) (&&lambda/raise-expr ?arg ?sub-body)]
+                              [::&&/lambda =scope =captured (cons ?arg ?sub-args) (&&lambda/raise-expr =scope ?arg ?sub-body)]
 
                               _
                               [::&&/lambda =scope =captured (list ?arg) =body])
@@ -125,19 +117,19 @@
   ;; (prn 'analyse-def ?name ?value)
   (exec [module-name &/get-module-name]
     (if-m (&&def/defined? module-name ?name)
-          (fail (str "Can't redefine " ?name))
+          (fail (str "[Analyser Error] Can't redefine " ?name))
           (exec [=value (&&/analyse-1 analyse ?value)
                  =value (match =value
                           [::&&/Expression =value-form =value-type]
                           (return (match =value-form
                                     [::&&/lambda ?old-scope ?env ?args ?body]
-                                    [::&&/Expression [::&&/lambda (list module-name ?name) ?env ?args ?body] =value-type]
+                                    [::&&/Expression [::&&/lambda (list module-name ?name) ?env ?args (&&lambda/re-scope (list module-name ?name) ?body)] =value-type]
                                     
                                     _
                                     =value))
 
                           _
-                          (fail ""))
+                          (fail "[Analyser Error] def value must be an expression!"))
                  =value-type (&&/expr-type =value)
                  _ (&&def/define module-name ?name =value-type)]
             (return (list [::&&/Statement [::&&/def ?name =value]]))))))
diff --git a/src/lux/compiler.clj b/src/lux/compiler.clj
index c32d1218a..8681aebe4 100644
--- a/src/lux/compiler.clj
+++ b/src/lux/compiler.clj
@@ -75,8 +75,8 @@
       [::&a/lambda ?scope ?frame ?args ?body]
       (&&lambda/compile-lambda compile-expression ?type ?scope ?frame ?args ?body false true)
 
-      [::&a/self ?assumed-args]
-      (&&lux/compile-self-call compile-expression ?assumed-args)
+      [::&a/self ?scope ?assumed-args]
+      (&&lux/compile-self-call compile-expression ?scope ?assumed-args)
 
       ;; Integer arithmetic
       [::&a/jvm-iadd ?x ?y]
@@ -221,7 +221,8 @@
     (println (str "Compilation complete! " (pr-str modules)))
 
     [::&/failure ?message]
-    (assert false ?message)))
+    (do (prn 'compile-all '?message ?message)
+      (assert false ?message))))
 
 (comment
   (compile-all ["lux"])
diff --git a/src/lux/compiler/host.clj b/src/lux/compiler/host.clj
index acddcf8cb..a141cecc3 100644
--- a/src/lux/compiler/host.clj
+++ b/src/lux/compiler/host.clj
@@ -113,6 +113,7 @@
     (return nil)))
 
 (defn compile-jvm-invokevirtual [compile *type* ?class ?method ?classes ?object ?args]
+  (prn 'compile-jvm-invokevirtual ?classes *type*)
   (exec [*writer* &/get-writer
          :let [method-sig (str "(" (reduce str "" (map &host/->type-signature ?classes)) ")" (&host/->java-sig *type*))]
          _ (compile ?object)
diff --git a/src/lux/compiler/lambda.clj b/src/lux/compiler/lambda.clj
index 5c83b159e..b24ab9fc6 100644
--- a/src/lux/compiler/lambda.clj
+++ b/src/lux/compiler/lambda.clj
@@ -52,7 +52,7 @@
                  [::&analyser/captured ?closure-id ?captured-id ?source])
                (doseq [[?name ?captured] closed-over])))
       (-> (doto (.visitVarInsn Opcodes/ALOAD 0)
-            (.visitInsn Opcodes/ICONST_0)
+            (.visitVarInsn Opcodes/ILOAD 1)
             (.visitFieldInsn Opcodes/PUTFIELD class-name "_counter" counter-sig)
             (-> (doto (.visitVarInsn Opcodes/ALOAD 0)
                   (.visitVarInsn Opcodes/ALOAD (+ clo_idx offset))
diff --git a/src/lux/compiler/lux.clj b/src/lux/compiler/lux.clj
index cbab1fdd4..bd09b603f 100644
--- a/src/lux/compiler/lux.clj
+++ b/src/lux/compiler/lux.clj
@@ -27,7 +27,7 @@
          module-name &/get-module-name
          :let [outer-class (&host/->class module-name)
                datum-sig (&host/->type-signature "java.lang.Object")
-               current-class (&host/location (list ?name outer-class))
+               current-class (&host/location (list outer-class ?name))
                _ (.visitInnerClass *writer* current-class outer-class nil (+ Opcodes/ACC_STATIC Opcodes/ACC_SYNTHETIC))
                =class (doto (new ClassWriter ClassWriter/COMPUTE_MAXS)
                         (.visit Opcodes/V1_5 (+ Opcodes/ACC_PUBLIC Opcodes/ACC_FINAL Opcodes/ACC_SUPER)
@@ -125,7 +125,7 @@
 
 (defn compile-global [compile *type* ?owner-class ?name]
   (exec [*writer* &/get-writer
-         :let [_ (.visitFieldInsn *writer* Opcodes/GETSTATIC (&host/->class (&host/location (list ?name ?owner-class))) "_datum" "Ljava/lang/Object;")]]
+         :let [_ (.visitFieldInsn *writer* Opcodes/GETSTATIC (&host/->class (&host/location (list ?owner-class ?name))) "_datum" "Ljava/lang/Object;")]]
     (return nil)))
 
 (defn compile-call [compile *type* ?fn ?args]
@@ -144,7 +144,7 @@
          :let [_ (match (:form ?fn)
                    [::&a/global ?owner-class ?fn-name]
                    (let [arg-sig (&host/->type-signature "java.lang.Object")
-                         call-class (&host/location (list ?fn-name ?owner-class))
+                         call-class (&host/location (list ?owner-class ?fn-name))
                          provides-num (count ?args)]
                      (if (>= provides-num ?needs-num)
                        (let [impl-sig (str "(" (reduce str "" (repeat ?needs-num arg-sig)) ")" arg-sig)]
@@ -183,9 +183,24 @@
       _
       (fail "Can only define expressions."))))
 
-(defn compile-self-call [compile ?assumed-args]
+(defn compile-self-call [compile ?scope ?assumed-args]
+  (prn 'compile-self-call ?scope ?assumed-args)
   (exec [*writer* &/get-writer
-         :let [_ (.visitVarInsn *writer* Opcodes/ALOAD 0)]
+         :let [lambda-class (&host/location ?scope)]
+         :let [_ (doto *writer*
+                   (.visitTypeInsn Opcodes/NEW lambda-class)
+                   (.visitInsn Opcodes/DUP))]
+         :let [num-args (if (= '("lux" "fold") ?scope)
+                          3
+                          (count ?assumed-args))
+               init-signature (str "(" (if (> num-args 1)
+                                         (reduce str "I" (repeat (dec num-args) (&host/->type-signature "java.lang.Object"))))
+                                   ")"
+                                   "V")
+               _ (do (when (> num-args 1)
+                       (.visitInsn *writer* Opcodes/ICONST_0)
+                       (&&/add-nulls *writer* (dec num-args)))
+                   (.visitMethodInsn *writer* Opcodes/INVOKESPECIAL lambda-class "<init>" init-signature))]
          _ (map-m (fn [arg]
                     (exec [ret (compile arg)
                            :let [_ (.visitMethodInsn *writer* Opcodes/INVOKEINTERFACE (&host/->class &host/function-class) "apply" &&/apply-signature)]]
diff --git a/src/lux/host.clj b/src/lux/host.clj
index 9cf4f85c0..05a2b53ba 100644
--- a/src/lux/host.clj
+++ b/src/lux/host.clj
@@ -55,7 +55,7 @@
 
 (defn full-class-name [class-name]
   (exec [=class (full-class class-name)]
-    (.getName class-name)))
+    (return (.getName =class))))
 
 (defn ->class [class]
   (string/replace class #"\." "/"))
@@ -99,26 +99,27 @@
 
 (defn extract-jvm-param [token]
   (match token
-    [::&parser/ident ?ident]
+    [::&parser/Ident ?ident]
     (full-class-name ?ident)
 
-    [::&parser/form ([[::&parser/ident "Array"] [::&parser/ident ?inner]] :seq)]
+    [::&parser/Form ([[::&parser/Ident "Array"] [::&parser/Ident ?inner]] :seq)]
     (exec [=inner (full-class-name ?inner)]
       (return (str "[L" (->class =inner) ";")))
 
     _
-    (fail "")))
+    (fail (str "[Host] Unknown JVM param: " (pr-str token)))))
 
 (do-template [<name> <static?>]
   (defn <name> [target field]
-    (if-let [type* (first (for [=field (.getFields target)
-                                :when (and (= target (.getDeclaringClass =field))
-                                           (= field (.getName =field))
-                                           (= <static?> (java.lang.reflect.Modifier/isStatic (.getModifiers =field))))]
-                            (.getType =field)))]
-      (exec [=type (class->type type*)]
-        (return =type))
-      (fail (str "[Analyser Error] Field does not exist: " target field))))
+    (let [target (Class/forName target)]
+      (if-let [type* (first (for [=field (.getFields target)
+                                  :when (and (= target (.getDeclaringClass =field))
+                                             (= field (.getName =field))
+                                             (= <static?> (java.lang.reflect.Modifier/isStatic (.getModifiers =field))))]
+                              (.getType =field)))]
+        (exec [=type (class->type type*)]
+          (return =type))
+        (fail (str "[Analyser Error] Field does not exist: " target field)))))
 
   lookup-static-field true
   lookup-field        false
@@ -126,14 +127,17 @@
 
 (do-template [<name> <static?>]
   (defn <name> [target method-name args]
-    (if-let [method (first (for [=method (.getMethods target)
-                                 :when (and (= target (.getDeclaringClass =method))
-                                            (= method-name (.getName =method))
-                                            (= <static?> (java.lang.reflect.Modifier/isStatic (.getModifiers =method))))]
-                             =method))]
-      (exec [=method (method->type method)]
-        (return =method))
-      (fail (str "[Analyser Error] Method does not exist: " target method-name))))
+    (let [target (Class/forName target)]
+      (if-let [method (first (for [=method (.getMethods target)
+                                   :let [_ (prn '<name> '=method =method (mapv #(.getName %) (.getParameterTypes =method)))]
+                                   :when (and (= target (.getDeclaringClass =method))
+                                              (= method-name (.getName =method))
+                                              (= <static?> (java.lang.reflect.Modifier/isStatic (.getModifiers =method)))
+                                              (= args (mapv #(.getName %) (.getParameterTypes =method))))]
+                               =method))]
+        (exec [=method (method->type method)]
+          (return =method))
+        (fail (str "[Analyser Error] Method does not exist: " target method-name)))))
 
   lookup-static-method  true
   lookup-virtual-method false
diff --git a/src/lux/macro.clj b/src/lux/macro.clj
index 76784a4a9..447387649 100644
--- a/src/lux/macro.clj
+++ b/src/lux/macro.clj
@@ -74,9 +74,10 @@
                    first
                    (.newInstance (to-array [(int 0) nil]))
                    ((fn [macro] (prn 'macro macro "#1") macro))
-                   (.impl (->lux+ ->lux loader tokens) nil)
-                   ;; ((fn [macro] (prn 'macro macro "#2") macro))
-                   ;; (.apply nil)
+                   (.apply (->lux+ ->lux loader tokens))
+                   ;; (.impl (->lux+ ->lux loader tokens) nil)
+                   ((fn [macro] (prn 'macro macro "#2") macro))
+                   (.apply nil)
                    ((fn [macro] (prn 'macro macro "#3") macro))
                    ;; (.apply nil)
                    ;; ((fn [macro] (prn 'macro macro "#4?") macro))