Part 1: process Function instances.

This commit is contained in:
Richard Newman 2016-08-04 16:59:37 -07:00
parent 2faa0b1ac6
commit dc3cef985b

View file

@ -13,14 +13,35 @@
[datascript.parser :as dp
#?@(:cljs
[:refer
[PlainSymbol Predicate Not Or Pattern DefaultSrc Variable Constant Placeholder]])]
[
Constant
DefaultSrc
Function
Not
Or
Pattern
Placeholder
PlainSymbol
Predicate
Variable
]])]
[honeysql.core :as sql]
[clojure.string :as str]
)
#?(:clj
(:import
[datascript.parser
PlainSymbol Predicate Not Or Pattern DefaultSrc Variable Constant Placeholder])))
Constant
DefaultSrc
Function
Not
Or
Pattern
Placeholder
PlainSymbol
Predicate
Variable
])))
;; A ConjoiningClauses (CC) is a collection of clauses that are combined with JOIN.
;; The topmost form in a query is a ConjoiningClauses.
@ -258,6 +279,9 @@
;; TODO: handle And within the Or patterns.
(raise "Non-simple `or` clauses not yet supported." {:clause orc})))
(apply-function-clause [cc function]
cc)
;; We're keeping this simple for now: a straightforward type switch.
(defn apply-clause [cc it]
(condp instance? it
@ -273,6 +297,9 @@
Pattern
(apply-pattern-clause cc it)
Function
(apply-function-clause cc it)
(raise "Unknown clause." {:clause it})))
(defn expand-pattern-clauses