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-rw-r--r--src/CoreBindings.kt42
-rw-r--r--test/res/test.lisp5
2 files changed, 45 insertions, 2 deletions
diff --git a/src/CoreBindings.kt b/src/CoreBindings.kt
index 13c6de3..645a4ae 100644
--- a/src/CoreBindings.kt
+++ b/src/CoreBindings.kt
@@ -92,7 +92,7 @@ object CoreBindings {
is LispData.LispNode -> resolved.node.toSource()
is LispData.LispString -> resolved.string
is LispData.LispNumber -> resolved.value.toString()
- is LispData.LispInterpretedCallable -> "<function ${resolved.name ?: ""} ${resolved.argNames} ${resolved.body.toSource()}>"
+ is LispData.LispInterpretedCallable -> "<function ${resolved.name ?: "<anonymous>"} ${resolved.argNames} ${resolved.body.toSource()}>"
}
})
LispData.LispNil
@@ -106,9 +106,49 @@ object CoreBindings {
?: return@externalCall reportError("Unexpected argument $b, expected number")).value
})
}
+ val sub = LispData.externalCall { args, reportError ->
+ if (args.size == 0) {
+ return@externalCall reportError("Cannot call sub without at least 1 argument")
+ }
+ val c = args.map {
+ (it as? LispData.LispNumber
+ ?: return@externalCall reportError("Unexpected argument $it, expected number")
+ ).value
+ }
+ LispData.LispNumber(args.drop(1).fold(c.first()) { a, b ->
+ a - (b as? LispData.LispNumber
+ ?: return@externalCall reportError("Unexpected argument $b, expected number")).value
+ })
+ }
+ val mul = LispData.externalCall { args, reportError ->
+ if (args.size == 0) {
+ return@externalCall reportError("Cannot call mul without at least 1 argument")
+ }
+ LispData.LispNumber(args.fold(1.0) { a, b ->
+ a * (b as? LispData.LispNumber
+ ?: return@externalCall reportError("Unexpected argument $b, expected number")).value
+ })
+ }
+ val div = LispData.externalCall { args, reportError ->
+ if (args.size == 0) {
+ return@externalCall reportError("Cannot call div without at least 1 argument")
+ }
+ val c = args.map {
+ (it as? LispData.LispNumber
+ ?: return@externalCall reportError("Unexpected argument $it, expected number")
+ ).value
+ }
+ LispData.LispNumber(args.drop(1).fold(c.first()) { a, b ->
+ a / (b as? LispData.LispNumber
+ ?: return@externalCall reportError("Unexpected argument $b, expected number")).value
+ })
+ }
fun offerArithmeticTo(bindings: StackFrame) {
bindings.setValueLocal("+", add)
+ bindings.setValueLocal("/", div)
+ bindings.setValueLocal("*", mul)
+ bindings.setValueLocal("-", sub)
}
fun offerAllTo(bindings: StackFrame) {
diff --git a/test/res/test.lisp b/test/res/test.lisp
index 06e9f43..cc20808 100644
--- a/test/res/test.lisp
+++ b/test/res/test.lisp
@@ -5,4 +5,7 @@
(debuglog a)
(def helloworld (pure "hello world"))
(debuglog helloworld (helloworld))
-(debuglog + (+ 1.2 15))
+(debuglog "+" (+ 1.2 15))
+(debuglog "-" (- 1 3))
+(debuglog "*" (* 10 10))
+(debuglog "/" (/ 1 3 2))