Merge pull request #105 from CommanderTvis/adv-expr-refactor-agc

Refactor ASM generation code
This commit is contained in:
Alexander Nozik 2020-06-16 10:30:05 +03:00 committed by GitHub
commit 7c769bf74a
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 249 additions and 221 deletions

View File

@ -1,6 +1,7 @@
package scientifik.kmath.asm
import scientifik.kmath.asm.internal.AsmBuilder
import scientifik.kmath.asm.internal.buildName
import scientifik.kmath.asm.internal.hasSpecific
import scientifik.kmath.asm.internal.tryInvokeSpecific
import scientifik.kmath.ast.MST
@ -11,44 +12,30 @@ import scientifik.kmath.expressions.Expression
import scientifik.kmath.operations.*
import kotlin.reflect.KClass
/**
* Compile given MST to an Expression using AST compiler
*/
fun <T : Any> MST.compileWith(type: KClass<T>, algebra: Algebra<T>): Expression<T> {
fun buildName(mst: MST, collision: Int = 0): String {
val name = "scientifik.kmath.expressions.generated.AsmCompiledExpression_${mst.hashCode()}_$collision"
try {
Class.forName(name)
} catch (ignored: ClassNotFoundException) {
return name
}
return buildName(mst, collision + 1)
}
fun AsmBuilder<T>.visit(node: MST): Unit {
fun AsmBuilder<T>.visit(node: MST) {
when (node) {
is MST.Symbolic -> visitLoadFromVariables(node.value)
is MST.Symbolic -> loadVariable(node.value)
is MST.Numeric -> {
val constant = if (algebra is NumericAlgebra<T>) {
algebra.number(node.value)
} else {
error("Number literals are not supported in $algebra")
}
visitLoadFromConstants(constant)
loadTConstant(constant)
}
is MST.Unary -> {
visitLoadAlgebra()
loadAlgebra()
if (!hasSpecific(algebra, node.operation, 1)) visitStringConstant(node.operation)
if (!hasSpecific(algebra, node.operation, 1)) loadStringConstant(node.operation)
visit(node.value)
if (!tryInvokeSpecific(algebra, node.operation, 1)) {
visitAlgebraOperation(
invokeAlgebraOperation(
owner = AsmBuilder.ALGEBRA_CLASS,
method = "unaryOperation",
descriptor = "(L${AsmBuilder.STRING_CLASS};" +
@ -58,17 +45,17 @@ fun <T : Any> MST.compileWith(type: KClass<T>, algebra: Algebra<T>): Expression<
}
}
is MST.Binary -> {
visitLoadAlgebra()
loadAlgebra()
if (!hasSpecific(algebra, node.operation, 2))
visitStringConstant(node.operation)
loadStringConstant(node.operation)
visit(node.left)
visit(node.right)
if (!tryInvokeSpecific(algebra, node.operation, 2)) {
visitAlgebraOperation(
invokeAlgebraOperation(
owner = AsmBuilder.ALGEBRA_CLASS,
method = "binaryOperation",
descriptor = "(L${AsmBuilder.STRING_CLASS};" +
@ -81,9 +68,7 @@ fun <T : Any> MST.compileWith(type: KClass<T>, algebra: Algebra<T>): Expression<
}
}
val builder = AsmBuilder(type.java, algebra, buildName(this))
builder.visit(this)
return builder.generate()
return AsmBuilder(type.java, algebra, buildName(this)) { visit(this@compileWith) }.getInstance()
}
inline fun <reified T : Any> Algebra<T>.compile(mst: MST): Expression<T> = mst.compileWith(T::class, this)

View File

@ -4,41 +4,29 @@ import org.objectweb.asm.ClassWriter
import org.objectweb.asm.Label
import org.objectweb.asm.MethodVisitor
import org.objectweb.asm.Opcodes
import scientifik.kmath.asm.internal.AsmBuilder.AsmClassLoader
import scientifik.kmath.expressions.Expression
import scientifik.kmath.asm.internal.AsmBuilder.ClassLoader
import scientifik.kmath.operations.Algebra
private abstract class FunctionalCompiledExpression<T> internal constructor(
@JvmField protected val algebra: Algebra<T>,
@JvmField protected val constants: Array<Any>
) : Expression<T> {
abstract override fun invoke(arguments: Map<String, T>): T
}
/**
* AsmGenerationContext is a structure that abstracts building a class that unwraps [AsmNode] to plain Java
* expression. This class uses [AsmClassLoader] for loading the generated class, then it is able to instantiate the new
* class.
* ASM Builder is a structure that abstracts building a class that unwraps [AsmExpression] to plain Java expression.
* This class uses [ClassLoader] for loading the generated class, then it is able to instantiate the new class.
*
* @param T the type of AsmExpression to unwrap.
* @param algebra the algebra the applied AsmExpressions use.
* @param className the unique class name of new loaded class.
*
* @author [Iaroslav Postovalov](https://github.com/CommanderTvis)
*/
internal class AsmBuilder<T>(
internal class AsmBuilder<T> internal constructor(
private val classOfT: Class<*>,
private val algebra: Algebra<T>,
private val className: String
private val className: String,
private val invokeLabel0Visitor: AsmBuilder<T>.() -> Unit
) {
private class AsmClassLoader(parent: ClassLoader) : ClassLoader(parent) {
private class ClassLoader(parent: java.lang.ClassLoader) : java.lang.ClassLoader(parent) {
internal fun defineClass(name: String?, b: ByteArray): Class<*> = defineClass(name, b, 0, b.size)
}
private val classLoader: AsmClassLoader =
AsmClassLoader(javaClass.classLoader)
private val classLoader: ClassLoader =
ClassLoader(javaClass.classLoader)
@Suppress("PrivatePropertyName")
private val T_ALGEBRA_CLASS: String = algebra.javaClass.name.replace(oldChar = '.', newChar = '/')
@ -49,45 +37,49 @@ internal class AsmBuilder<T>(
private val slashesClassName: String = className.replace(oldChar = '.', newChar = '/')
private val invokeThisVar: Int = 0
private val invokeArgumentsVar: Int = 1
private var maxStack: Int = 0
private val constants: MutableList<Any> = mutableListOf()
private val asmCompiledClassWriter: ClassWriter = ClassWriter(0)
private val invokeMethodVisitor: MethodVisitor
private val invokeL0: Label
private lateinit var invokeL1: Label
private lateinit var invokeMethodVisitor: MethodVisitor
private var generatedInstance: AsmCompiledExpression<T>? = null
init {
asmCompiledClassWriter.visit(
Opcodes.V1_8,
Opcodes.ACC_PUBLIC or Opcodes.ACC_FINAL or Opcodes.ACC_SUPER,
slashesClassName,
"L$FUNCTIONAL_COMPILED_EXPRESSION_CLASS<L$T_CLASS;>;",
FUNCTIONAL_COMPILED_EXPRESSION_CLASS,
arrayOf()
)
@Suppress("UNCHECKED_CAST")
fun getInstance(): AsmCompiledExpression<T> {
generatedInstance?.let { return it }
asmCompiledClassWriter.run {
visitMethod(Opcodes.ACC_PUBLIC, "<init>", "(L$ALGEBRA_CLASS;[L$OBJECT_CLASS;)V", null, null).run {
val classWriter = ClassWriter(ClassWriter.COMPUTE_FRAMES) {
visit(
Opcodes.V1_8,
Opcodes.ACC_PUBLIC or Opcodes.ACC_FINAL or Opcodes.ACC_SUPER,
slashesClassName,
"L$FUNCTIONAL_COMPILED_EXPRESSION_CLASS<L$T_CLASS;>;",
FUNCTIONAL_COMPILED_EXPRESSION_CLASS,
arrayOf()
)
visitMethod(
access = Opcodes.ACC_PUBLIC,
name = "<init>",
descriptor = "(L$ALGEBRA_CLASS;[L$OBJECT_CLASS;)V",
signature = null,
exceptions = null
) {
val thisVar = 0
val algebraVar = 1
val constantsVar = 2
val l0 = Label()
visitLabel(l0)
visitVarInsn(Opcodes.ALOAD, thisVar)
visitVarInsn(Opcodes.ALOAD, algebraVar)
visitVarInsn(Opcodes.ALOAD, constantsVar)
visitLoadObjectVar(thisVar)
visitLoadObjectVar(algebraVar)
visitLoadObjectVar(constantsVar)
visitMethodInsn(
Opcodes.INVOKESPECIAL,
visitInvokeSpecial(
FUNCTIONAL_COMPILED_EXPRESSION_CLASS,
"<init>",
"(L$ALGEBRA_CLASS;[L$OBJECT_CLASS;)V",
false
"(L$ALGEBRA_CLASS;[L$OBJECT_CLASS;)V"
)
val l1 = Label()
visitLabel(l1)
visitInsn(Opcodes.RETURN)
visitReturn()
val l2 = Label()
visitLabel(l2)
visitLocalVariable("this", "L$slashesClassName;", null, l0, l2, thisVar)
@ -102,220 +94,210 @@ internal class AsmBuilder<T>(
)
visitLocalVariable("constants", "[L$OBJECT_CLASS;", null, l0, l2, constantsVar)
visitMaxs(3, 3)
visitMaxs(0, 3)
visitEnd()
}
invokeMethodVisitor = visitMethod(
Opcodes.ACC_PUBLIC or Opcodes.ACC_FINAL,
"invoke",
"(L$MAP_CLASS;)L$T_CLASS;",
"(L$MAP_CLASS<L$STRING_CLASS;+L$T_CLASS;>;)L$T_CLASS;",
null
)
invokeMethodVisitor.run {
visitMethod(
access = Opcodes.ACC_PUBLIC or Opcodes.ACC_FINAL,
name = "invoke",
descriptor = "(L$MAP_CLASS;)L$T_CLASS;",
signature = "(L$MAP_CLASS<L$STRING_CLASS;+L$T_CLASS;>;)L$T_CLASS;",
exceptions = null
) {
invokeMethodVisitor = this
visitCode()
invokeL0 = Label()
visitLabel(invokeL0)
val l0 = Label()
visitLabel(l0)
invokeLabel0Visitor()
visitReturnObject()
val l1 = Label()
visitLabel(l1)
visitLocalVariable(
"this",
"L$slashesClassName;",
null,
l0,
l1,
invokeThisVar
)
visitLocalVariable(
"arguments",
"L$MAP_CLASS;",
"L$MAP_CLASS<L$STRING_CLASS;+L$T_CLASS;>;",
l0,
l1,
invokeArgumentsVar
)
visitMaxs(0, 2)
visitEnd()
}
}
}
@Suppress("UNCHECKED_CAST")
fun generate(): Expression<T> {
visitMethod(
access = Opcodes.ACC_PUBLIC or Opcodes.ACC_FINAL or Opcodes.ACC_BRIDGE or Opcodes.ACC_SYNTHETIC,
name = "invoke",
descriptor = "(L$MAP_CLASS;)L$OBJECT_CLASS;",
signature = null,
exceptions = null
) {
val thisVar = 0
val argumentsVar = 1
visitCode()
val l0 = Label()
visitLabel(l0)
visitLoadObjectVar(thisVar)
visitLoadObjectVar(argumentsVar)
visitInvokeVirtual(owner = slashesClassName, name = "invoke", descriptor = "(L$MAP_CLASS;)L$T_CLASS;")
visitReturnObject()
val l1 = Label()
visitLabel(l1)
invokeMethodVisitor.run {
visitInsn(Opcodes.ARETURN)
invokeL1 = Label()
visitLabel(invokeL1)
visitLocalVariable(
"this",
"L$slashesClassName;",
T_CLASS,
l0,
l1,
thisVar
)
visitLocalVariable(
"this",
"L$slashesClassName;",
T_CLASS,
invokeL0,
invokeL1,
invokeThisVar
)
visitMaxs(0, 2)
visitEnd()
}
visitLocalVariable(
"arguments",
"L$MAP_CLASS;",
"L$MAP_CLASS<L$STRING_CLASS;+L$T_CLASS;>;",
invokeL0,
invokeL1,
invokeArgumentsVar
)
visitMaxs(maxStack + 1, 2)
visitEnd()
}
asmCompiledClassWriter.visitMethod(
Opcodes.ACC_PUBLIC or Opcodes.ACC_FINAL or Opcodes.ACC_BRIDGE or Opcodes.ACC_SYNTHETIC,
"invoke",
"(L$MAP_CLASS;)L$OBJECT_CLASS;",
null,
null
).run {
val thisVar = 0
visitCode()
val l0 = Label()
visitLabel(l0)
visitVarInsn(Opcodes.ALOAD, 0)
visitVarInsn(Opcodes.ALOAD, 1)
visitMethodInsn(Opcodes.INVOKEVIRTUAL, slashesClassName, "invoke", "(L$MAP_CLASS;)L$T_CLASS;", false)
visitInsn(Opcodes.ARETURN)
val l1 = Label()
visitLabel(l1)
visitLocalVariable(
"this",
"L$slashesClassName;",
T_CLASS,
l0,
l1,
thisVar
)
visitMaxs(2, 2)
visitEnd()
}
asmCompiledClassWriter.visitEnd()
val new = classLoader
.defineClass(className, asmCompiledClassWriter.toByteArray())
.defineClass(className, classWriter.toByteArray())
.constructors
.first()
.newInstance(algebra, constants.toTypedArray()) as FunctionalCompiledExpression<T>
.newInstance(algebra, constants.toTypedArray()) as AsmCompiledExpression<T>
generatedInstance = new
return new
}
fun visitLoadFromConstants(value: T) {
internal fun loadTConstant(value: T) {
if (classOfT in INLINABLE_NUMBERS) {
visitNumberConstant(value as Number)
visitCastToT()
loadNumberConstant(value as Number)
invokeMethodVisitor.visitCheckCast(T_CLASS)
return
}
visitLoadAnyFromConstants(value as Any, T_CLASS)
loadConstant(value as Any, T_CLASS)
}
private fun visitLoadAnyFromConstants(value: Any, type: String) {
private fun loadConstant(value: Any, type: String) {
val idx = if (value in constants) constants.indexOf(value) else constants.apply { add(value) }.lastIndex
maxStack++
invokeMethodVisitor.run {
visitLoadThis()
visitFieldInsn(Opcodes.GETFIELD, slashesClassName, "constants", "[L$OBJECT_CLASS;")
visitLdcOrIConstInsn(idx)
visitInsn(Opcodes.AALOAD)
invokeMethodVisitor.visitTypeInsn(Opcodes.CHECKCAST, type)
loadThis()
visitGetField(owner = slashesClassName, name = "constants", descriptor = "[L$OBJECT_CLASS;")
visitLdcOrIntConstant(idx)
visitGetObjectArrayElement()
invokeMethodVisitor.visitCheckCast(type)
}
}
private fun visitLoadThis(): Unit = invokeMethodVisitor.visitVarInsn(Opcodes.ALOAD, invokeThisVar)
private fun loadThis(): Unit = invokeMethodVisitor.visitLoadObjectVar(invokeThisVar)
fun visitNumberConstant(value: Number) {
maxStack++
internal fun loadNumberConstant(value: Number) {
val clazz = value.javaClass
val c = clazz.name.replace('.', '/')
val sigLetter = SIGNATURE_LETTERS[clazz]
if (sigLetter != null) {
when (value) {
is Int -> invokeMethodVisitor.visitLdcOrIConstInsn(value)
is Double -> invokeMethodVisitor.visitLdcOrDConstInsn(value)
is Float -> invokeMethodVisitor.visitLdcOrFConstInsn(value)
is Int -> invokeMethodVisitor.visitLdcOrIntConstant(value)
is Double -> invokeMethodVisitor.visitLdcOrDoubleConstant(value)
is Float -> invokeMethodVisitor.visitLdcOrFloatConstant(value)
else -> invokeMethodVisitor.visitLdcInsn(value)
}
invokeMethodVisitor.visitMethodInsn(Opcodes.INVOKESTATIC, c, "valueOf", "($sigLetter)L${c};", false)
invokeMethodVisitor.visitInvokeStatic(c, "valueOf", "($sigLetter)L${c};")
return
}
visitLoadAnyFromConstants(value, c)
loadConstant(value, c)
}
fun visitLoadFromVariables(name: String, defaultValue: T? = null): Unit = invokeMethodVisitor.run {
maxStack += 2
visitVarInsn(Opcodes.ALOAD, invokeArgumentsVar)
internal fun loadVariable(name: String, defaultValue: T? = null): Unit = invokeMethodVisitor.run {
visitLoadObjectVar(invokeArgumentsVar)
if (defaultValue != null) {
visitLdcInsn(name)
visitLoadFromConstants(defaultValue)
loadTConstant(defaultValue)
visitMethodInsn(
Opcodes.INVOKEINTERFACE,
MAP_CLASS,
"getOrDefault",
"(L$OBJECT_CLASS;L$OBJECT_CLASS;)L$OBJECT_CLASS;",
true
visitInvokeInterface(
owner = MAP_CLASS,
name = "getOrDefault",
descriptor = "(L$OBJECT_CLASS;L$OBJECT_CLASS;)L$OBJECT_CLASS;"
)
visitCastToT()
invokeMethodVisitor.visitCheckCast(T_CLASS)
return
}
visitLdcInsn(name)
visitMethodInsn(
Opcodes.INVOKEINTERFACE,
MAP_CLASS, "get", "(L$OBJECT_CLASS;)L$OBJECT_CLASS;", true
)
visitCastToT()
}
fun visitLoadAlgebra() {
maxStack++
invokeMethodVisitor.visitVarInsn(Opcodes.ALOAD, invokeThisVar)
invokeMethodVisitor.visitFieldInsn(
Opcodes.GETFIELD,
FUNCTIONAL_COMPILED_EXPRESSION_CLASS, "algebra", "L$ALGEBRA_CLASS;"
visitInvokeInterface(
owner = MAP_CLASS,
name = "get",
descriptor = "(L$OBJECT_CLASS;)L$OBJECT_CLASS;"
)
invokeMethodVisitor.visitTypeInsn(Opcodes.CHECKCAST, T_ALGEBRA_CLASS)
invokeMethodVisitor.visitCheckCast(T_CLASS)
}
fun visitAlgebraOperation(
internal fun loadAlgebra() {
loadThis()
invokeMethodVisitor.visitGetField(
owner = FUNCTIONAL_COMPILED_EXPRESSION_CLASS,
name = "algebra",
descriptor = "L$ALGEBRA_CLASS;"
)
invokeMethodVisitor.visitCheckCast(T_ALGEBRA_CLASS)
}
internal fun invokeAlgebraOperation(
owner: String,
method: String,
descriptor: String,
opcode: Int = Opcodes.INVOKEINTERFACE,
isInterface: Boolean = true
) {
maxStack++
invokeMethodVisitor.visitMethodInsn(opcode, owner, method, descriptor, isInterface)
visitCastToT()
invokeMethodVisitor.visitCheckCast(T_CLASS)
}
private fun visitCastToT(): Unit = invokeMethodVisitor.visitTypeInsn(Opcodes.CHECKCAST, T_CLASS)
internal fun loadStringConstant(string: String): Unit = invokeMethodVisitor.visitLdcInsn(string)
fun visitStringConstant(string: String) {
invokeMethodVisitor.visitLdcInsn(string)
}
internal companion object {
private val SIGNATURE_LETTERS: Map<Class<out Any>, String> by lazy {
mapOf(
java.lang.Byte::class.java to "B",
java.lang.Short::class.java to "S",
java.lang.Integer::class.java to "I",
java.lang.Long::class.java to "J",
java.lang.Float::class.java to "F",
java.lang.Double::class.java to "D"
)
}
companion object {
private val SIGNATURE_LETTERS = mapOf(
java.lang.Byte::class.java to "B",
java.lang.Short::class.java to "S",
java.lang.Integer::class.java to "I",
java.lang.Long::class.java to "J",
java.lang.Float::class.java to "F",
java.lang.Double::class.java to "D"
)
private val INLINABLE_NUMBERS: Set<Class<out Any>> by lazy { SIGNATURE_LETTERS.keys }
private val INLINABLE_NUMBERS = SIGNATURE_LETTERS.keys
internal const val FUNCTIONAL_COMPILED_EXPRESSION_CLASS =
"scientifik/kmath/asm/internal/AsmCompiledExpression"
const val FUNCTIONAL_COMPILED_EXPRESSION_CLASS = "scientifik/kmath/asm/FunctionalCompiledExpression"
const val MAP_CLASS = "java/util/Map"
const val OBJECT_CLASS = "java/lang/Object"
const val ALGEBRA_CLASS = "scientifik/kmath/operations/Algebra"
const val SPACE_OPERATIONS_CLASS = "scientifik/kmath/operations/SpaceOperations"
const val STRING_CLASS = "java/lang/String"
const val NUMBER_CLASS = "java/lang/Number"
internal const val MAP_CLASS = "java/util/Map"
internal const val OBJECT_CLASS = "java/lang/Object"
internal const val ALGEBRA_CLASS = "scientifik/kmath/operations/Algebra"
internal const val STRING_CLASS = "java/lang/String"
}
}

View File

@ -0,0 +1,12 @@
package scientifik.kmath.asm.internal
import scientifik.kmath.expressions.Expression
import scientifik.kmath.operations.Algebra
internal abstract class AsmCompiledExpression<T> internal constructor(
@JvmField protected val algebra: Algebra<T>,
@JvmField protected val constants: Array<Any>
) : Expression<T> {
abstract override fun invoke(arguments: Map<String, T>): T
}

View File

@ -0,0 +1,15 @@
package scientifik.kmath.asm.internal
import scientifik.kmath.ast.MST
internal fun buildName(mst: MST, collision: Int = 0): String {
val name = "scientifik.kmath.asm.generated.AsmCompiledExpression_${mst.hashCode()}_$collision"
try {
Class.forName(name)
} catch (ignored: ClassNotFoundException) {
return name
}
return buildName(mst, collision + 1)
}

View File

@ -0,0 +1,15 @@
package scientifik.kmath.asm.internal
import org.objectweb.asm.ClassWriter
import org.objectweb.asm.MethodVisitor
internal inline fun ClassWriter(flags: Int, block: ClassWriter.() -> Unit): ClassWriter = ClassWriter(flags).apply(block)
internal inline fun ClassWriter.visitMethod(
access: Int,
name: String,
descriptor: String,
signature: String?,
exceptions: Array<String>?,
block: MethodVisitor.() -> Unit
): MethodVisitor = visitMethod(access, name, descriptor, signature, exceptions).apply(block)

View File

@ -3,7 +3,7 @@ package scientifik.kmath.asm.internal
import org.objectweb.asm.MethodVisitor
import org.objectweb.asm.Opcodes.*
internal fun MethodVisitor.visitLdcOrIConstInsn(value: Int) = when (value) {
internal fun MethodVisitor.visitLdcOrIntConstant(value: Int): Unit = when (value) {
-1 -> visitInsn(ICONST_M1)
0 -> visitInsn(ICONST_0)
1 -> visitInsn(ICONST_1)
@ -14,15 +14,39 @@ internal fun MethodVisitor.visitLdcOrIConstInsn(value: Int) = when (value) {
else -> visitLdcInsn(value)
}
internal fun MethodVisitor.visitLdcOrDConstInsn(value: Double) = when (value) {
internal fun MethodVisitor.visitLdcOrDoubleConstant(value: Double): Unit = when (value) {
0.0 -> visitInsn(DCONST_0)
1.0 -> visitInsn(DCONST_1)
else -> visitLdcInsn(value)
}
internal fun MethodVisitor.visitLdcOrFConstInsn(value: Float) = when (value) {
internal fun MethodVisitor.visitLdcOrFloatConstant(value: Float): Unit = when (value) {
0f -> visitInsn(FCONST_0)
1f -> visitInsn(FCONST_1)
2f -> visitInsn(FCONST_2)
else -> visitLdcInsn(value)
}
internal fun MethodVisitor.visitInvokeInterface(owner: String, name: String, descriptor: String): Unit =
visitMethodInsn(INVOKEINTERFACE, owner, name, descriptor, true)
internal fun MethodVisitor.visitInvokeVirtual(owner: String, name: String, descriptor: String): Unit =
visitMethodInsn(INVOKEVIRTUAL, owner, name, descriptor, false)
internal fun MethodVisitor.visitInvokeStatic(owner: String, name: String, descriptor: String): Unit =
visitMethodInsn(INVOKESTATIC, owner, name, descriptor, false)
internal fun MethodVisitor.visitInvokeSpecial(owner: String, name: String, descriptor: String): Unit =
visitMethodInsn(INVOKESPECIAL, owner, name, descriptor, false)
internal fun MethodVisitor.visitCheckCast(type: String): Unit = visitTypeInsn(CHECKCAST, type)
internal fun MethodVisitor.visitGetField(owner: String, name: String, descriptor: String): Unit =
visitFieldInsn(GETFIELD, owner, name, descriptor)
internal fun MethodVisitor.visitLoadObjectVar(`var`: Int): Unit = visitVarInsn(ALOAD, `var`)
internal fun MethodVisitor.visitGetObjectArrayElement(): Unit = visitInsn(AALOAD)
internal fun MethodVisitor.visitReturn(): Unit = visitInsn(RETURN)
internal fun MethodVisitor.visitReturnObject(): Unit = visitInsn(ARETURN)

View File

@ -29,7 +29,7 @@ internal fun <T> AsmBuilder<T>.tryInvokeSpecific(context: Algebra<T>, name: Stri
append("L${AsmBuilder.OBJECT_CLASS};")
}
visitAlgebraOperation(
invokeAlgebraOperation(
owner = owner,
method = aName,
descriptor = sig,
@ -39,8 +39,3 @@ internal fun <T> AsmBuilder<T>.tryInvokeSpecific(context: Algebra<T>, name: Stri
return true
}
//
//internal fun <T : Any> AsmExpression<T>.optimize(): AsmExpression<T> {
// val a = tryEvaluate()
// return if (a == null) this else AsmConstantExpression(type, algebra, a)
//}