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sci.cljc
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sci.cljc
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;;
;; Copyright © 2020 Colin Smith.
;; This work is based on the Scmutils system of MIT/GNU Scheme:
;; Copyright © 2002 Massachusetts Institute of Technology
;;
;; This is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3 of the License, or (at
;; your option) any later version.
;;
;; This software is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this code; if not, see <http://www.gnu.org/licenses/>.
;;
(ns sicmutils.env.sci
(:refer-clojure :exclude [ns-map])
(:require [sci.core :as sci]
[sicmutils.env]
[sicmutils.env.sci.macros :as macros]))
(def macro? (comp :macro meta))
(def dynamic? (comp :dynamic meta))
(defn ns-macros
"Given a map of symbol => var, returns a sequence of the symbols associated with
macro value."
[sym->var]
(mapcat (fn [[sym var]]
(if (macro? var) [sym] []))
sym->var))
(defn sci-ns
"Given a map of symbol => var, returns a map of symbol => var with:
- any pair removed whose value is a macro (tagged with `:macro true` metadata)
- all other values resolved"
[sym->var]
(letfn [(process [[sym var]]
(cond
;; Inside SCI, macros are replaced by rewritten-as-functions
;; versions of themselves, with additional slots for `&form` and
;; `&env`. We exclude them here so they can be replaced later.
(macro? var) []
;; Keep dynamic variables as unresolved vars, so that they can
;; at least be inspected (at which point they'll reveal any
;; rebindings applied by the system)
(dynamic? var) [[sym var]]
;; by default, the SCI environment holds values, not the vars
;; that they were attached to in non-SCI land.
:else [[sym @var]]))]
(into {} (mapcat process) sym->var)))
(def ^{:doc "Map whose values are the symbols of of all namespaces explicitly
checked and whitelisted for SCI compilation and interesting enough in their own
right to expose to a user by default. Each value is the sym->var map for the
corresponding namespace."}
ns->publics
{'pattern.consequence (ns-publics 'pattern.consequence)
'pattern.match (ns-publics 'pattern.match)
'pattern.rule (ns-publics 'pattern.rule)
'pattern.syntax (ns-publics 'pattern.syntax)
'sicmutils.algebra.fold (ns-publics 'sicmutils.algebra.fold)
'sicmutils.complex (ns-publics 'sicmutils.complex)
'sicmutils.differential (ns-publics 'sicmutils.differential)
'sicmutils.env (ns-publics 'sicmutils.env)
'sicmutils.expression (ns-publics 'sicmutils.expression)
'sicmutils.function (ns-publics 'sicmutils.function)
'sicmutils.generic (ns-publics 'sicmutils.generic)
'sicmutils.matrix (ns-publics 'sicmutils.matrix)
'sicmutils.modint (ns-publics 'sicmutils.modint)
'sicmutils.numsymb (ns-publics 'sicmutils.numsymb)
'sicmutils.operator (ns-publics 'sicmutils.operator)
'sicmutils.polynomial (ns-publics 'sicmutils.polynomial)
'sicmutils.polynomial.factor (ns-publics 'sicmutils.polynomial.factor)
'sicmutils.polynomial.gcd (ns-publics 'sicmutils.polynomial.gcd)
'sicmutils.polynomial.interpolate (ns-publics 'sicmutils.polynomial.interpolate)
'sicmutils.polynomial.richardson (ns-publics 'sicmutils.polynomial.richardson)
'sicmutils.quaternion (ns-publics 'sicmutils.quaternion)
'sicmutils.ratio (ns-publics 'sicmutils.ratio)
'sicmutils.rational-function (ns-publics 'sicmutils.rational-function)
'sicmutils.rational-function.interpolate (ns-publics 'sicmutils.rational-function.interpolate)
'sicmutils.series (ns-publics 'sicmutils.series)
'sicmutils.simplify (ns-publics 'sicmutils.simplify)
'sicmutils.simplify.rules (ns-publics 'sicmutils.simplify.rules)
'sicmutils.structure (ns-publics 'sicmutils.structure)
'sicmutils.util (ns-publics 'sicmutils.util)
'sicmutils.value (ns-publics 'sicmutils.value)
'sicmutils.abstract.function (ns-publics 'sicmutils.abstract.function)
'sicmutils.abstract.number (ns-publics 'sicmutils.abstract.number)
'sicmutils.calculus.basis (ns-publics 'sicmutils.calculus.basis)
'sicmutils.calculus.connection (ns-publics 'sicmutils.calculus.connection)
'sicmutils.calculus.coordinate (ns-publics 'sicmutils.calculus.coordinate)
'sicmutils.calculus.covariant (ns-publics 'sicmutils.calculus.covariant)
'sicmutils.calculus.curvature (ns-publics 'sicmutils.calculus.curvature)
'sicmutils.calculus.derivative (ns-publics 'sicmutils.calculus.derivative)
'sicmutils.calculus.form-field (ns-publics 'sicmutils.calculus.form-field)
'sicmutils.calculus.frame (ns-publics 'sicmutils.calculus.frame)
'sicmutils.calculus.hodge-star (ns-publics 'sicmutils.calculus.hodge-star)
'sicmutils.calculus.indexed (ns-publics 'sicmutils.calculus.indexed)
'sicmutils.calculus.manifold (ns-publics 'sicmutils.calculus.manifold)
'sicmutils.calculus.metric (ns-publics 'sicmutils.calculus.metric)
'sicmutils.calculus.map (ns-publics 'sicmutils.calculus.map)
'sicmutils.calculus.vector-calculus (ns-publics 'sicmutils.calculus.vector-calculus)
'sicmutils.calculus.vector-field (ns-publics 'sicmutils.calculus.vector-field)
'sicmutils.expression.analyze (ns-publics 'sicmutils.expression.analyze)
'sicmutils.expression.compile (ns-publics 'sicmutils.expression.compile)
'sicmutils.expression.render (ns-publics 'sicmutils.expression.render)
'sicmutils.mechanics.lagrange (ns-publics 'sicmutils.mechanics.lagrange)
'sicmutils.mechanics.hamilton (ns-publics 'sicmutils.mechanics.hamilton)
'sicmutils.mechanics.rigid (ns-publics 'sicmutils.mechanics.rigid)
'sicmutils.mechanics.rotation (ns-publics 'sicmutils.mechanics.rotation)
'sicmutils.numerical.derivative (ns-publics 'sicmutils.numerical.derivative)
'sicmutils.numerical.minimize (ns-publics 'sicmutils.numerical.minimize)
'sicmutils.numerical.ode (ns-publics 'sicmutils.numerical.ode)
'sicmutils.numerical.quadrature (ns-publics 'sicmutils.numerical.quadrature)
'sicmutils.numerical.multimin.nelder-mead (ns-publics 'sicmutils.numerical.multimin.nelder-mead)
'sicmutils.numerical.unimin.bracket (ns-publics 'sicmutils.numerical.unimin.bracket)
'sicmutils.numerical.unimin.brent (ns-publics 'sicmutils.numerical.unimin.brent)
'sicmutils.numerical.unimin.golden (ns-publics 'sicmutils.numerical.unimin.golden)
'sicmutils.special.elliptic (ns-publics 'sicmutils.special.elliptic)
'sicmutils.special.factorial (ns-publics 'sicmutils.special.factorial)
'sicmutils.sr.boost (ns-publics 'sicmutils.sr.boost)
'sicmutils.sr.frames (ns-publics 'sicmutils.sr.frames)
'sicmutils.util.aggregate (ns-publics 'sicmutils.util.aggregate)
'sicmutils.util.def (ns-publics 'sicmutils.util.def)
'sicmutils.util.logic (ns-publics 'sicmutils.util.logic)
'sicmutils.util.permute (ns-publics 'sicmutils.util.permute)
'sicmutils.util.stream (ns-publics 'sicmutils.util.stream)})
(def ^{:doc "SCI namespace map generated from `ns->publics`. Consumers wishing
to use a more minmal SCI environment, should can select interested namespaces
from this map. Since in normal (not self-hosted) ClojureScript `ns-publics`
does not include macros, they are added explicitly."}
namespaces
(let [ns-map (into {}
(map (fn [[k v]] [k (sci-ns v)]))
ns->publics)]
(merge-with merge ns-map macros/ns-bindings)))
(def ^{:doc "Default sci context options required (currently only `:namespace`
bindings) required to evaluate SICMUtils forms from inside of an SCI
context. Pass these to `sci/init` to generate an sci context."}
context-opts
{:namespaces namespaces
;; NOTE that these entries are required if you'd like to call the
;; `sicmutils.algebra.fold/kbk-n` macro, which generates code using
;; `Math/abs`. JVM and js forms are shown.
:classes #?(:clj {'java.lang.Math java.lang.Math}
:cljs {'js goog/global :allow :all})})
(def ^{:doc "sci context (currently only `:namespace` bindings) required to
evaluate SICMUtils forms via SCI"}
context
(sci/init context-opts))