application/octet-stream
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3.03 KB
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87 lines
[defn load/forms [source environment]
"Load multiple forms, evaluating the results in environment, so we can make use of macros we just defined"
[for-in [form source]
[-> [macroexpand form environment]
bytecompile
assemble*
[bytecode-eval environment]]]]
[defn macroexpand/forms [source-raw environment]
"Expand multiple forms, evaluating the source in a temporary environment, so we can make use of macros we just defined."
[when-not environment [set! environment [ω]]]
[load/forms source-raw environment]
[macroexpand source-raw environment]]
[defn compile/debug [expr]
[-> [macroexpand expr]
bytecompile
assemble*
disassemble]]
[defn compile* [source environment]
"Compile SOURCE so it can be evaluated/applied"
[-> [macroexpand source environment]
bytecompile
assemble*]]
[defn compile/do* [source environment]
[compile* [cons do source] environment]]
[defmacro compile [source]
"Compile SOURCE so it can be evaluated/applied"
`[compile* ~source [current-closure]]]
[defmacro compile/do [source]
"Compile SOURCE so it can be evaluated/applied"
`[compile* [cons do ~source] [current-closure]]]
[defn meta/parse/body [type args body]
[def meta @[]]
[for-in [v body]
[case [type-of v]
[:pair [return meta]]
[:string [tree/set! meta :documentation [trim [cat [string [tree/ref meta :documentation]]
"\n"
v]]]]
[:keyword [tree/set! meta v #t]]]]
[return meta]]
[defmacro defmacro [name args . body]
"Define a new macro"
`[def ~name [macro* ~name ~args ~[tree/set! [meta/parse/body :macro args body] :source body] ~[compile/do* body [current-closure]]]]]
[defmacro fn [args . body]
"Define an anonymous function"
`[fn* 'anonymous ~args ~[tree/set! [meta/parse/body :lambda args body] :source body] ~[compile/do* body [current-closure]]]]
[defmacro defn [name args . body]
"Define a new function"
`[def ~name [fn* ~name ~args ~[tree/set! [meta/parse/body :lambda args body] :source body] ~[compile/do* body [current-closure]]]]]
[defmacro ω body
"Defines and returns new object after evaluating body within"
[macroexpand [cons 'ω* body]]]
[def defobj ω]
[defn eval-in [closure expr]
"Compile and the immediatly evaluate the result"
""
"Mostly used by lRun()"
[try display/error [-> [compile* expr closure]
[bytecode-eval closure]]]]
[defn eval-in/trace [closure expr]
"Compile and the immediatly evaluate the result"
""
"mostly used by lRun()"
[try display/error
[def bc [compile* expr closure]]
[println [str/write bc]]
[bytecode-eval bc closure]]]
[defmacro eval [expr]
"Compile, Evaluate and then return the result of EXPR"
`[eval-in [current-closure] ~expr]]
[defmacro typecheck/only [v t]
`[when-not [== [type-of ~v] ~t] [throw [list :type-error ~[fmt "Expected a value of type {t}"] ~v [current-lambda]]]]]
