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Add asts to thrown errors.

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This commit is contained in:
Scott Richmond 2022-05-19 17:14:20 -04:00
parent 1fb41d8b71
commit cfe790b9c5
1 changed files with 17 additions and 16 deletions
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33
src/ludus/interpreter.clj
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@ -63,7 +63,7 @@
::ast/tuple (match-tuple pattern value ctx-vol)
(throw (ex-info "Unknown pattern" {:pattern pattern})))))
(throw (ex-info "Unknown pattern on line " {:pattern pattern})))))
(defn- update-ctx [ctx new-ctx]
(merge ctx new-ctx))
@ -108,14 +108,14 @@
(vswap! new-ctx #(merge % clause-ctx))
(interpret-ast body new-ctx))
(recur (first clauses) (rest clauses))))
(throw (ex-info "Match Error: No match found" {}))))))
(throw (ex-info "Match Error: No match found" {:ast ast}))))))
(defn- interpret-cond [ast ctx]
(let [clauses (:clauses ast)]
(loop [clause (first clauses)
clauses (rest clauses)]
(if (not clause)
(throw (ex-info "Cond Error: No match found" {}))
(throw (ex-info "Cond Error: No match found" {:ast ast}))
(let [test-expr (:test clause)
body (:body clause)
truthy? (boolean (interpret-ast test-expr ctx))]
@ -130,15 +130,15 @@
(defn- interpret-called-kw [kw tuple ctx]
;; TODO: check this statically
(if (not (= 1 (:length tuple)))
(throw (ex-info "Called keywords must be unary" {}))
(throw (ex-info "Called keywords must be unary" {:ast kw}))
(let [kw (interpret-ast kw ctx)
map (second (interpret-ast tuple ctx))]
(if (::data/struct map)
(if (contains? map kw)
(kw map)
(if (= (::data/type map) ::data/ns)
(throw (ex-info (str "Namespace error: no member " kw " in ns " (::data/name map)) {}))
(throw (ex-info (str "Struct error: no member at " kw) {}))))
(throw (ex-info (str "Namespace error: no member " kw " in ns " (::data/name map)) {:ast kw}))
(throw (ex-info (str "Struct error: no member at " kw) {:ast kw}))))
(get map kw))
)))
@ -173,7 +173,7 @@
(interpret-ast body fn-ctx))
(recur (first clauses) (rest clauses))))
(throw (ex-info "Match Error: No match found" {:fn-name (:name lfn)})))))
(throw (ex-info "Match Error: No match found" {:ast (:ast lfn)})))))
(keyword? lfn)
(if (= 2 (count tuple))
@ -182,14 +182,14 @@
(if (contains? target kw)
(kw target)
(if (= (::data/type target) ::data/ns)
(throw (ex-info (str "Namespace error: no member " kw " in ns" (::data/name target)) {}))
(throw (ex-info (str "Struct error: no member at " kw) {}))
(throw (ex-info (str "Namespace error: no member " kw " in ns" (::data/name target)) {:ast kw}))
(throw (ex-info (str "Struct error: no member at " kw) {:ast kw}))
)
)
(kw target)))
(throw (ex-info "Called keywords take a single argument" {})))
(throw (ex-info "Called keywords take a single argument" {:ast lfn})))
:else (throw (ex-info "I don't know how to call that" {:fn lfn}))))
:else (throw (ex-info "I don't know how to call that" {:ast lfn}))))
(defn- interpret-synthetic-term [prev-value curr ctx]
(let [type (::ast/type curr)]
@ -220,6 +220,7 @@
(if (= name ::ast/anon)
{::data/type ::data/fn
:name name
:ast ast
:clauses clauses
:ctx ctx}
(let [fn {::data/type ::data/fn
@ -227,7 +228,7 @@
:clauses clauses
:ctx ctx}]
(if (contains? @ctx name)
(throw (ex-info (str "Name " name " is already bound") {}))
(throw (ex-info (str "Name " name " is already bound") {:ast ast}))
(do
(vswap! ctx update-ctx {name fn})
fn))))))
@ -247,7 +248,7 @@
(let [members (:members ast)
name (:name ast)]
(if (contains? @ctx name)
(throw (ex-info (str "ns name " name " is already bound") {}))
(throw (ex-info (str "ns name " name " is already bound") {:ast ast}))
(let [ns (into
{::data/struct true ::data/type ::data/ns ::data/name name}
(map-values #(interpret-ast % ctx))
@ -273,7 +274,7 @@
(defn- interpret-ref [ast ctx]
(let [name (:name ast) expr (:expr ast)]
(if (contains? @ctx name)
(throw (ex-info (str "Name " name " is already bound") {})))
(throw (ex-info (str "Name " name " is already bound") {:ast ast})))
(let [value (interpret-ast expr ctx)
box (atom value)
ref {::data/ref true ::data/value box ::data/name name}]
@ -299,7 +300,7 @@
(interpret-ast body new-ctx))
(recur (first clauses) (rest clauses))))
(throw (ex-info (str "Match Error: No match found in loop for " input) {}))))]
(throw (ex-info (str "Match Error: No match found in loop for " input) {:ast ast}))))]
(if (::data/recur output)
(recur (:tuple output))
output
@ -382,7 +383,7 @@
(let [members (:members ast)]
(into {::data/struct true} (map-values #(interpret-ast % ctx)) members))
(throw (ex-info "Unknown AST node type" {:node ast}))))
(throw (ex-info "Unknown AST node type" {:ast ast}))))
(defn interpret [parsed]
(try