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-rw-r--r--new-luxc/source/luxc/analyser/struct.lux348
1 files changed, 0 insertions, 348 deletions
diff --git a/new-luxc/source/luxc/analyser/struct.lux b/new-luxc/source/luxc/analyser/struct.lux
deleted file mode 100644
index 562e30294..000000000
--- a/new-luxc/source/luxc/analyser/struct.lux
+++ /dev/null
@@ -1,348 +0,0 @@
-(;module:
- lux
- (lux (control monad
- pipe)
- [io #- run]
- [function]
- (concurrency ["A" atom])
- (data [text "T/" Eq<Text>]
- text/format
- [ident]
- (coll [list "L/" Fold<List> Monoid<List> Monad<List>]
- ["D" dict]
- ["S" set])
- [number]
- [product])
- [macro #+ Monad<Lux>]
- (macro [code])
- [type]
- (type ["TC" check]))
- (luxc ["&" base]
- (lang ["la" analysis #+ Analysis]
- ["lp" pattern])
- ["&;" module]
- ["&;" env]
- (analyser ["&;" common]
- ["&;" inference])))
-
-## [Analysers]
-(def: (analyse-typed-product analyse members)
- (-> &;Analyser (List Code) (Lux Analysis))
- (do Monad<Lux>
- [expected macro;expected-type]
- (loop [expected expected
- members members]
- (case [expected members]
- [(#;Product leftT rightT) (#;Cons leftC rightC)]
- (do @
- [leftA (&;with-expected-type leftT
- (analyse leftC))
- rightA (recur rightT rightC)]
- (wrap (#la;Product leftA rightA)))
-
- [tailT (#;Cons tailC #;Nil)]
- (&;with-expected-type tailT
- (analyse tailC))
-
- [tailT tailC]
- (do @
- [g!tail (macro;gensym "tail")]
- (&;with-expected-type tailT
- (analyse (` ((~' _lux_case) [(~@ tailC)]
- (~ g!tail)
- (~ g!tail))))))
- ))))
-
-(def: #export (normalize-record pairs)
- (-> (List [Code Code]) (Lux (List [Ident Code])))
- (mapM Monad<Lux>
- (function [[key val]]
- (case key
- [_ (#;Tag key)]
- (do Monad<Lux>
- [key (macro;normalize key)]
- (wrap [key val]))
-
- _
- (&;fail (format "Cannot use non-tag tokens in key positions in records: " (%code key)))))
- pairs))
-
-(def: #export (order-record pairs)
- (-> (List [Ident Code]) (Lux [(List Code) Type]))
- (case pairs
- (#;Cons [head-k head-v] _)
- (do Monad<Lux>
- [head-k (macro;normalize head-k)
- [_ tag-set recordT] (macro;resolve-tag head-k)
- #let [size-record (list;size pairs)
- size-ts (list;size tag-set)]
- _ (if (n.= size-ts size-record)
- (wrap [])
- (&;fail (format "Record size does not match tag-set size." "\n"
- "Expected: " (|> size-ts nat-to-int %i) "\n"
- " Actual: " (|> size-record nat-to-int %i) "\n"
- "For type: " (%type recordT))))
- #let [tuple-range (list;n.range +0 size-ts)
- tag->idx (D;from-list ident;Hash<Ident> (list;zip2 tag-set tuple-range))]
- idx->val (foldM @
- (function [[key val] idx->val]
- (do @
- [key (macro;normalize key)]
- (case (D;get key tag->idx)
- #;None
- (&;fail (format "Tag " (%code (code;tag key))
- " does not belong to tag-set for type " (%type recordT)))
-
- (#;Some idx)
- (if (D;contains? idx idx->val)
- (&;fail (format "Cannot repeat tag inside record: " (%code (code;tag key))))
- (wrap (D;put idx val idx->val))))))
- (: (D;Dict Nat Code)
- (D;new number;Hash<Nat>))
- pairs)
- #let [ordered-tuple (L/map (function [idx]
- (assume (D;get idx idx->val)))
- tuple-range)]]
- (wrap [ordered-tuple recordT]))
-
- _
- (:: Monad<Lux> wrap [(list) Unit])))
-
-(def: (tuple members)
- (-> (List Analysis) Analysis)
- (case members
- #;Nil
- #la;Unit
-
- (#;Cons singleton #;Nil)
- singleton
-
- (#;Cons left right)
- (#la;Product left (tuple right))))
-
-(def: #export (analyse-product analyse membersC)
- (-> &;Analyser (List Code) (Lux Analysis))
- (do Monad<Lux>
- [expected macro;expected-type]
- (&;with-stacked-errors
- (function [_] (format "Invalid type for tuple: " (%type expected)))
- (case expected
- (#;Product _)
- (analyse-typed-product analyse membersC)
-
- (#;Named name unnamedT)
- (&;with-expected-type unnamedT
- (analyse-product analyse membersC))
-
- (#;Var id)
- (do @
- [bound? (&;within-type-env
- (TC;bound? id))]
- (if bound?
- (do @
- [expected' (&;within-type-env
- (TC;read-var id))]
- (&;with-expected-type expected'
- (analyse-product analyse membersC)))
- (do @
- [membersTA (mapM @ (|>. analyse &common;with-unknown-type)
- membersC)
- _ (&;within-type-env
- (TC;check expected
- (type;tuple (L/map product;left membersTA))))]
- (wrap (tuple (L/map product;right membersTA))))))
-
- (#;UnivQ _)
- (do @
- [[var-id var] (&;within-type-env
- TC;existential)]
- (&;with-expected-type (assume (type;apply-type expected var))
- (analyse-product analyse membersC)))
-
- (#;ExQ _)
- (&common;with-var
- (function [[var-id var]]
- (&;with-expected-type (assume (type;apply-type expected var))
- (analyse-product analyse membersC))))
-
- _
- (&;fail "")
- ))))
-
-(def: (record-function-type type)
- (-> Type (Lux Type))
- (case type
- (#;Named name unnamedT)
- (do Monad<Lux>
- [unnamedT+ (record-function-type unnamedT)]
- (wrap (#;Named name unnamedT+)))
-
- (^template [<tag>]
- (<tag> env bodyT)
- (do Monad<Lux>
- [bodyT+ (record-function-type bodyT)]
- (wrap (<tag> env bodyT+))))
- ([#;UnivQ]
- [#;ExQ])
-
- (#;Product _)
- (:: Monad<Lux> wrap (type;function (type;flatten-tuple type) type))
-
- _
- (&;fail (format "Not a record type: " (%type type)))))
-
-(def: (out-of-bounds-error type size tag)
- (All [a] (-> Type Nat Nat (Lux a)))
- (&;fail (format "Trying to create variant with tag beyond type's limitations." "\n"
- " Tag: " (%i (nat-to-int tag)) "\n"
- "Size: " (%i (nat-to-int size)) "\n"
- "Type: " (%type type))))
-
-(def: (variant-function-type tag expected-size type)
- (-> Nat Nat Type (Lux Type))
- (case type
- (#;Named name unnamedT)
- (do Monad<Lux>
- [unnamedT+ (record-function-type unnamedT)]
- (wrap (#;Named name unnamedT+)))
-
- (^template [<tag>]
- (<tag> env bodyT)
- (do Monad<Lux>
- [bodyT+ (record-function-type bodyT)]
- (wrap (<tag> env bodyT+))))
- ([#;UnivQ]
- [#;ExQ])
-
- (#;Sum _)
- (let [cases (type;flatten-variant type)
- actual-size (list;size cases)
- boundary (n.dec expected-size)]
- (cond (or (n.= expected-size actual-size)
- (and (n.> expected-size actual-size)
- (n.< boundary tag)))
- (case (list;nth tag cases)
- (#;Some caseT)
- (:: Monad<Lux> wrap (type;function (list caseT) type))
-
- #;None
- (out-of-bounds-error type expected-size tag))
-
- (n.< expected-size actual-size)
- (&;fail (format "Variant type is smaller than expected." "\n"
- "Expected: " (%i (nat-to-int expected-size)) "\n"
- " Actual: " (%i (nat-to-int actual-size))))
-
- (n.= boundary tag)
- (let [caseT (type;variant (list;drop boundary cases))]
- (:: Monad<Lux> wrap (type;function (list caseT) type)))
-
- ## else
- (out-of-bounds-error type expected-size tag)))
-
- _
- (&;fail (format "Not a variant type: " (%type type)))))
-
-(def: #export (analyse-record analyse members)
- (-> &;Analyser (List [Code Code]) (Lux Analysis))
- (do Monad<Lux>
- [members (normalize-record members)
- [members recordT] (order-record members)
- expectedT macro;expected-type
- functionT (record-function-type recordT)
- [inferredT membersA] (&inference;apply-function analyse functionT members)
- _ (&;within-type-env
- (TC;check expectedT inferredT))]
- (wrap (tuple membersA))))
-
-(do-template [<name> <side>]
- [(def: (<name> inner)
- (-> Analysis Analysis)
- (#la;Sum (<side> inner)))]
-
- [sum-left #;Left]
- [sum-right #;Right])
-
-(def: (variant tag size temp value)
- (-> Nat Nat Nat Analysis Analysis)
- (let [last-tag (n.dec size)]
- (if (n.= last-tag tag)
- (L/fold (function;const sum-left)
- (sum-right value)
- (list;n.range +0 last-tag))
- (L/fold (function;const sum-left)
- (case value
- (#la;Sum _)
- (#la;Case value (list [(#lp;Bind temp)
- (#la;Relative (#;Local temp))]))
-
- _
- value)
- (list;n.range +0 tag)))))
-
-(def: #export (analyse-tagged-sum analyse tag value)
- (-> &;Analyser Ident Code (Lux Analysis))
- (do Monad<Lux>
- [tag (macro;normalize tag)
- [idx group variantT] (macro;resolve-tag tag)
- #let [case-size (list;size group)]
- functionT (variant-function-type idx case-size variantT)
- [inferredT valueA+] (&inference;apply-function analyse functionT (list value))
- expectedT macro;expected-type
- _ (&;within-type-env
- (TC;check expectedT inferredT))
- temp &env;next-local]
- (wrap (variant idx case-size temp (|> valueA+ list;head assume)))))
-
-(def: #export (analyse-sum analyse tag valueC)
- (-> &;Analyser Nat Code (Lux Analysis))
- (do Monad<Lux>
- [expected macro;expected-type]
- (&;with-stacked-errors
- (function [_] (format "Invalid type for variant: " (%type expected)))
- (case expected
- (#;Sum _)
- (let [flat (type;flatten-variant expected)
- type-size (list;size flat)]
- (case (list;nth tag flat)
- (#;Some variant-type)
- (do @
- [valueA (&;with-expected-type variant-type
- (analyse valueC))
- temp &env;next-local]
- (wrap (variant tag type-size temp valueA)))
-
- #;None
- (out-of-bounds-error expected type-size tag)))
-
- (#;Named name unnamedT)
- (&;with-expected-type unnamedT
- (analyse-sum analyse tag valueC))
-
- (#;Var id)
- (do @
- [bound? (&;within-type-env
- (TC;bound? id))]
- (if bound?
- (do @
- [expected' (&;within-type-env
- (TC;read-var id))]
- (&;with-expected-type expected'
- (analyse-sum analyse tag valueC)))
- (&;fail (format "Invalid type for variant: " (%type expected)))))
-
- (#;UnivQ _)
- (do @
- [[var-id var] (&;within-type-env
- TC;existential)]
- (&;with-expected-type (assume (type;apply-type expected var))
- (analyse-sum analyse tag valueC)))
-
- (#;ExQ _)
- (&common;with-var
- (function [[var-id var]]
- (&;with-expected-type (assume (type;apply-type expected var))
- (analyse-sum analyse tag valueC))))
-
- _
- (&;fail "")))))
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