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(.module:
[lux #*
[data
["." text
format]
["." product]
[collection
["a" array]
["." list ("list/." Functor<List>)]]]
["." host (#+ import: do-to)]
["." function]]
["$" //
["$t" type]])
(import: #long java/lang/Object)
(import: #long java/lang/String)
(import: org/objectweb/asm/Opcodes
(#static ACC_PUBLIC int)
(#static ACC_PROTECTED int)
(#static ACC_PRIVATE int)
(#static ACC_TRANSIENT int)
(#static ACC_VOLATILE int)
(#static ACC_ABSTRACT int)
(#static ACC_FINAL int)
(#static ACC_STATIC int)
(#static ACC_SYNCHRONIZED int)
(#static ACC_STRICT int)
(#static ACC_SUPER int)
(#static ACC_INTERFACE int)
(#static V1_1 int)
(#static V1_2 int)
(#static V1_3 int)
(#static V1_4 int)
(#static V1_5 int)
(#static V1_6 int)
(#static V1_7 int)
(#static V1_8 int)
)
(import: org/objectweb/asm/FieldVisitor
(visitEnd [] void))
(import: org/objectweb/asm/MethodVisitor
(visitCode [] void)
(visitMaxs [int int] void)
(visitEnd [] void))
(import: org/objectweb/asm/ClassWriter
(#static COMPUTE_MAXS int)
(#static COMPUTE_FRAMES int)
(new [int])
(visit [int int String String String (Array String)] void)
(visitEnd [] void)
(visitField [int String String String Object] FieldVisitor)
(visitMethod [int String String String (Array String)] MethodVisitor)
(toByteArray [] (Array byte)))
(def: (string-array values)
(-> (List Text) (Array Text))
(let [output (host.array String (list.size values))]
(exec (list/map (function (_ [idx value])
(host.array-write idx value output))
(list.enumerate values))
output)))
(def: exceptions-array
(-> $.Method (Array Text))
(|>> (get@ #$.exceptions)
(list/map (|>> #$.Generic $t.descriptor))
string-array))
(def: (version-flag version)
(-> $.Version Int)
(case version
#$.V1_1 Opcodes::V1_1
#$.V1_2 Opcodes::V1_2
#$.V1_3 Opcodes::V1_3
#$.V1_4 Opcodes::V1_4
#$.V1_5 Opcodes::V1_5
#$.V1_6 Opcodes::V1_6
#$.V1_7 Opcodes::V1_7
#$.V1_8 Opcodes::V1_8))
(def: (visibility-flag visibility)
(-> $.Visibility Int)
(case visibility
#$.Public Opcodes::ACC_PUBLIC
#$.Protected Opcodes::ACC_PROTECTED
#$.Private Opcodes::ACC_PRIVATE
#$.Default 0))
(def: (class-flags config)
(-> $.Class-Config Int)
($_ i/+
(if (get@ #$.finalC config) Opcodes::ACC_FINAL 0)))
(def: (method-flags config)
(-> $.Method-Config Int)
($_ i/+
(if (get@ #$.staticM config) Opcodes::ACC_STATIC 0)
(if (get@ #$.finalM config) Opcodes::ACC_FINAL 0)
(if (get@ #$.synchronizedM config) Opcodes::ACC_SYNCHRONIZED 0)
(if (get@ #$.strictM config) Opcodes::ACC_STRICT 0)))
(def: (field-flags config)
(-> $.Field-Config Int)
($_ i/+
(if (get@ #$.staticF config) Opcodes::ACC_STATIC 0)
(if (get@ #$.finalF config) Opcodes::ACC_FINAL 0)
(if (get@ #$.transientF config) Opcodes::ACC_TRANSIENT 0)
(if (get@ #$.volatileF config) Opcodes::ACC_VOLATILE 0)))
(def: class-to-type
(-> $.Class $.Type)
(|>> #$.Class #$.Generic))
(def: param-signature
(-> $.Class Text)
(|>> class-to-type $t.signature (format ":")))
(def: (formal-param [name super interfaces])
(-> $.Parameter Text)
(format name
(param-signature super)
(|> interfaces
(list/map param-signature)
(text.join-with ""))))
(def: (parameters-signature parameters super interfaces)
(-> (List $.Parameter) $.Class (List $.Class)
Text)
(let [formal-params (if (list.empty? parameters)
""
(format "<"
(|> parameters
(list/map formal-param)
(text.join-with ""))
">"))]
(format formal-params
(|> super class-to-type $t.signature)
(|> interfaces
(list/map (|>> class-to-type $t.signature))
(text.join-with "")))))
(def: class-computes
Int
($_ i/+
ClassWriter::COMPUTE_MAXS
## ClassWriter::COMPUTE_FRAMES
))
(do-template [<name> <flag>]
[(def: #export (<name> version visibility config name parameters super interfaces
definitions)
(-> $.Version $.Visibility $.Class-Config Text (List $.Parameter) $.Class (List $.Class) $.Def
(host.type (Array byte)))
(let [writer (|> (do-to (ClassWriter::new class-computes)
(ClassWriter::visit [(version-flag version)
($_ i/+
Opcodes::ACC_SUPER
<flag>
(visibility-flag visibility)
(class-flags config))
($t.binary-name name)
(parameters-signature parameters super interfaces)
(|> super product.left $t.binary-name)
(|> interfaces
(list/map (|>> product.left $t.binary-name))
string-array)]))
definitions)
_ (ClassWriter::visitEnd [] writer)]
(ClassWriter::toByteArray [] writer)))]
[class 0]
[abstract Opcodes::ACC_ABSTRACT]
)
(def: $Object $.Class ["java.lang.Object" (list)])
(def: #export (interface version visibility config name parameters interfaces
definitions)
(-> $.Version $.Visibility $.Class-Config Text (List $.Parameter) (List $.Class) $.Def
(host.type (Array byte)))
(let [writer (|> (do-to (ClassWriter::new class-computes)
(ClassWriter::visit [(version-flag version)
($_ i/+
Opcodes::ACC_SUPER
Opcodes::ACC_INTERFACE
(visibility-flag visibility)
(class-flags config))
($t.binary-name name)
(parameters-signature parameters $Object interfaces)
(|> $Object product.left $t.binary-name)
(|> interfaces
(list/map (|>> product.left $t.binary-name))
string-array)]))
definitions)
_ (ClassWriter::visitEnd [] writer)]
(ClassWriter::toByteArray [] writer)))
(def: #export (method visibility config name type then)
(-> $.Visibility $.Method-Config Text $.Method $.Inst
$.Def)
(function (_ writer)
(let [=method (ClassWriter::visitMethod [($_ i/+
(visibility-flag visibility)
(method-flags config))
($t.binary-name name)
($t.method-descriptor type)
($t.method-signature type)
(exceptions-array type)]
writer)
_ (MethodVisitor::visitCode [] =method)
_ (then =method)
_ (MethodVisitor::visitMaxs [0 0] =method)
_ (MethodVisitor::visitEnd [] =method)]
writer)))
(def: #export (abstract-method visibility config name type)
(-> $.Visibility $.Method-Config Text $.Method
$.Def)
(function (_ writer)
(let [=method (ClassWriter::visitMethod [($_ i/+
(visibility-flag visibility)
(method-flags config)
Opcodes::ACC_ABSTRACT)
($t.binary-name name)
($t.method-descriptor type)
($t.method-signature type)
(exceptions-array type)]
writer)
_ (MethodVisitor::visitEnd [] =method)]
writer)))
(def: #export (field visibility config name type)
(-> $.Visibility $.Field-Config Text $.Type $.Def)
(function (_ writer)
(let [=field (do-to (ClassWriter::visitField [($_ i/+
(visibility-flag visibility)
(field-flags config))
($t.binary-name name)
($t.descriptor type)
($t.signature type)
(host.null)] writer)
(FieldVisitor::visitEnd []))]
writer)))
(do-template [<name> <lux-type> <jvm-type> <prepare>]
[(def: #export (<name> visibility config name value)
(-> $.Visibility $.Field-Config Text <lux-type> $.Def)
(function (_ writer)
(let [=field (do-to (ClassWriter::visitField [($_ i/+
(visibility-flag visibility)
(field-flags config))
($t.binary-name name)
($t.descriptor <jvm-type>)
($t.signature <jvm-type>)
(<prepare> value)]
writer)
(FieldVisitor::visitEnd []))]
writer)))]
[boolean-field Bit $t.boolean id]
[byte-field Int $t.byte host.long-to-byte]
[short-field Int $t.short host.long-to-short]
[int-field Int $t.int host.long-to-int]
[long-field Int $t.long id]
[float-field Frac $t.float host.double-to-float]
[double-field Frac $t.double id]
[char-field Nat $t.char (|>> .int host.long-to-int host.int-to-char)]
[string-field Text ($t.class "java.lang.String" (list)) id]
)
(def: #export (fuse defs)
(-> (List $.Def) $.Def)
(case defs
#.Nil
id
(#.Cons singleton #.Nil)
singleton
(#.Cons head tail)
(function.compose (fuse tail) head)))
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