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mal/impls/picolisp/step3_env.l

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Implement step 3
2016-10-03 01:31:43 +03:00
(de load-relative (Path)
(load (pack (car (file)) Path)) )
(load-relative "readline.l")
(load-relative "types.l")
(load-relative "reader.l")
(load-relative "printer.l")
(load-relative "env.l")
(de READ (String)
(read-str String) )
Fix naming
2016-10-14 10:40:19 +03:00
(def '*ReplEnv (MAL-env NIL))
(set> *ReplEnv '+ '((A B) (MAL-number (+ (MAL-value A) (MAL-value B)))))
(set> *ReplEnv '- '((A B) (MAL-number (- (MAL-value A) (MAL-value B)))))
(set> *ReplEnv '* '((A B) (MAL-number (* (MAL-value A) (MAL-value B)))))
(set> *ReplEnv '/ '((A B) (MAL-number (/ (MAL-value A) (MAL-value B)))))
Implement step 3
2016-10-03 01:31:43 +03:00
(de EVAL (Ast Env)
Merge eval-ast and macro expansion into EVAL, add DEBUG-EVAL See issue #587. * Merge eval-ast and eval into a single conditional. * Expand macros during the apply phase, removing lots of duplicate tests, and increasing the overall consistency by allowing the macro to be computed instead of referenced by name (`((defmacro! cond (...)))` is currently illegal for example). * Print "EVAL: $ast" at the top of EVAL if DEBUG-EVAL exists in the MAL environment. * Remove macroexpand and quasiquoteexpand special forms. * Use pattern-matching style in process/step*.txt. Unresolved issues: c.2: unable to reproduce with gcc 11.12.0. elm: the directory is unchanged. groovy: sometimes fail, but not on each rebuild. nasm: fails some new soft tests, but the issue is unreproducible when running the interpreter manually. objpascal: unreproducible with fpc 3.2.2. ocaml: unreproducible with 4.11.1. perl6: unreproducible with rakudo 2021.09. Unrelated changes: Reduce diff betweens steps. Prevent defmacro! from mutating functions: c forth logo miniMAL vb. dart: fix recent errors and warnings ocaml: remove metadata from symbols. Improve the logo implementation. Encapsulate all representation in types.lg and env.lg, unwrap numbers. Replace some manual iterations with logo control structures. Reduce the diff between steps. Use native iteration in env_get and env_map Rewrite the reader with less temporary strings. Reduce the number of temporary lists (for example, reverse iteration with butlast requires O(n^2) allocations). It seems possible to remove a few exceptions: GC settings (Dockerfile), NO_SELF_HOSTING (IMPLS.yml) and step5_EXCLUDES (Makefile.impls) .
2022-01-10 02:15:40 +03:00
(when (and (get> Env 'DEBUG-EVAL)
(not (memq (MAL-type @) '(nil false))))
(prinl "EVAL: " (pr-str Ast T)))
(case (MAL-type Ast)
(list
Implement step 3
2016-10-03 01:31:43 +03:00
(let (Ast* (MAL-value Ast)
A0* (MAL-value (car Ast*))
A1* (MAL-value (cadr Ast*))
A2 (caddr Ast*))
(cond
Merge eval-ast and macro expansion into EVAL, add DEBUG-EVAL See issue #587. * Merge eval-ast and eval into a single conditional. * Expand macros during the apply phase, removing lots of duplicate tests, and increasing the overall consistency by allowing the macro to be computed instead of referenced by name (`((defmacro! cond (...)))` is currently illegal for example). * Print "EVAL: $ast" at the top of EVAL if DEBUG-EVAL exists in the MAL environment. * Remove macroexpand and quasiquoteexpand special forms. * Use pattern-matching style in process/step*.txt. Unresolved issues: c.2: unable to reproduce with gcc 11.12.0. elm: the directory is unchanged. groovy: sometimes fail, but not on each rebuild. nasm: fails some new soft tests, but the issue is unreproducible when running the interpreter manually. objpascal: unreproducible with fpc 3.2.2. ocaml: unreproducible with 4.11.1. perl6: unreproducible with rakudo 2021.09. Unrelated changes: Reduce diff betweens steps. Prevent defmacro! from mutating functions: c forth logo miniMAL vb. dart: fix recent errors and warnings ocaml: remove metadata from symbols. Improve the logo implementation. Encapsulate all representation in types.lg and env.lg, unwrap numbers. Replace some manual iterations with logo control structures. Reduce the diff between steps. Use native iteration in env_get and env_map Rewrite the reader with less temporary strings. Reduce the number of temporary lists (for example, reverse iteration with butlast requires O(n^2) allocations). It seems possible to remove a few exceptions: GC settings (Dockerfile), NO_SELF_HOSTING (IMPLS.yml) and step5_EXCLUDES (Makefile.impls) .
2022-01-10 02:15:40 +03:00
((not Ast*)
Ast)
Implement step 3
2016-10-03 01:31:43 +03:00
((= A0* 'def!)
(set> Env A1* (EVAL A2 Env)) )
((= A0* 'let*)
(let Env* (MAL-env Env)
(for (Bindings A1* Bindings)
(let (Key (MAL-value (pop 'Bindings))
Value (EVAL (pop 'Bindings) Env*))
(set> Env* Key Value) ) )
(EVAL A2 Env*) ) )
Merge eval-ast and macro expansion into EVAL, add DEBUG-EVAL See issue #587. * Merge eval-ast and eval into a single conditional. * Expand macros during the apply phase, removing lots of duplicate tests, and increasing the overall consistency by allowing the macro to be computed instead of referenced by name (`((defmacro! cond (...)))` is currently illegal for example). * Print "EVAL: $ast" at the top of EVAL if DEBUG-EVAL exists in the MAL environment. * Remove macroexpand and quasiquoteexpand special forms. * Use pattern-matching style in process/step*.txt. Unresolved issues: c.2: unable to reproduce with gcc 11.12.0. elm: the directory is unchanged. groovy: sometimes fail, but not on each rebuild. nasm: fails some new soft tests, but the issue is unreproducible when running the interpreter manually. objpascal: unreproducible with fpc 3.2.2. ocaml: unreproducible with 4.11.1. perl6: unreproducible with rakudo 2021.09. Unrelated changes: Reduce diff betweens steps. Prevent defmacro! from mutating functions: c forth logo miniMAL vb. dart: fix recent errors and warnings ocaml: remove metadata from symbols. Improve the logo implementation. Encapsulate all representation in types.lg and env.lg, unwrap numbers. Replace some manual iterations with logo control structures. Reduce the diff between steps. Use native iteration in env_get and env_map Rewrite the reader with less temporary strings. Reduce the number of temporary lists (for example, reverse iteration with butlast requires O(n^2) allocations). It seems possible to remove a few exceptions: GC settings (Dockerfile), NO_SELF_HOSTING (IMPLS.yml) and step5_EXCLUDES (Makefile.impls) .
2022-01-10 02:15:40 +03:00
(T (let Value (mapcar '((Form) (EVAL Form Env)) Ast*)
Implement step 3
2016-10-03 01:31:43 +03:00
(apply (car Value) (cdr Value)) ) ) ) ) )
Merge eval-ast and macro expansion into EVAL, add DEBUG-EVAL See issue #587. * Merge eval-ast and eval into a single conditional. * Expand macros during the apply phase, removing lots of duplicate tests, and increasing the overall consistency by allowing the macro to be computed instead of referenced by name (`((defmacro! cond (...)))` is currently illegal for example). * Print "EVAL: $ast" at the top of EVAL if DEBUG-EVAL exists in the MAL environment. * Remove macroexpand and quasiquoteexpand special forms. * Use pattern-matching style in process/step*.txt. Unresolved issues: c.2: unable to reproduce with gcc 11.12.0. elm: the directory is unchanged. groovy: sometimes fail, but not on each rebuild. nasm: fails some new soft tests, but the issue is unreproducible when running the interpreter manually. objpascal: unreproducible with fpc 3.2.2. ocaml: unreproducible with 4.11.1. perl6: unreproducible with rakudo 2021.09. Unrelated changes: Reduce diff betweens steps. Prevent defmacro! from mutating functions: c forth logo miniMAL vb. dart: fix recent errors and warnings ocaml: remove metadata from symbols. Improve the logo implementation. Encapsulate all representation in types.lg and env.lg, unwrap numbers. Replace some manual iterations with logo control structures. Reduce the diff between steps. Use native iteration in env_get and env_map Rewrite the reader with less temporary strings. Reduce the number of temporary lists (for example, reverse iteration with butlast requires O(n^2) allocations). It seems possible to remove a few exceptions: GC settings (Dockerfile), NO_SELF_HOSTING (IMPLS.yml) and step5_EXCLUDES (Makefile.impls) .
2022-01-10 02:15:40 +03:00
(symbol
(let (Key (MAL-value Ast))
(or (get> Env Key)
(throw 'err (MAL-error (MAL-string (pack "'" Key "' not found")))))))
(vector (MAL-vector (mapcar '((Form) (EVAL Form Env)) (MAL-value Ast))))
(map (MAL-map (mapcar '((Form) (EVAL Form Env)) (MAL-value Ast))))
(T Ast)))
Implement step 3
2016-10-03 01:31:43 +03:00
(de PRINT (Ast)
(pr-str Ast T) )
Fix rep
2016-10-14 11:16:44 +03:00
(de rep (String)
(PRINT (EVAL (READ String) *ReplEnv)) )
Implement step 3
2016-10-03 01:31:43 +03:00
(load-history ".mal_history")
(use Eof
(until Eof
(let Input (readline "user> ")
(if (=0 Input)
(setq Eof T)
Fix rep
2016-10-14 11:16:44 +03:00
(let Output (catch 'err (rep Input))
Implement step 3
2016-10-03 01:31:43 +03:00
(if (isa '+MALError Output)
(let Message (MAL-value Output)
Fix error handling
2016-10-22 13:37:24 +03:00
(unless (= (MAL-value Message) "end of token stream")
(prinl "[error] " (pr-str Message)) ) )
Implement step 3
2016-10-03 01:31:43 +03:00
(prinl Output) ) ) ) ) ) )
(prinl)
(bye)
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