Dev #127
4
kmath-ast/README.md
Normal file
4
kmath-ast/README.md
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@ -0,0 +1,4 @@
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# AST based expression representation and operations
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## Dynamic expression code generation
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Contributed by [Iaroslav Postovalov](https://github.com/CommanderTvis).
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@ -11,7 +11,7 @@ sealed class MST {
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/**
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* A node containing unparsed string
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*/
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data class Singular(val value: String) : MST()
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data class Symbolic(val value: String) : MST()
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/**
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* A node containing a number
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@ -43,7 +43,7 @@ sealed class MST {
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fun <T> NumericAlgebra<T>.evaluate(node: MST): T {
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return when (node) {
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is MST.Numeric -> number(node.value)
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is MST.Singular -> symbol(node.value)
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is MST.Symbolic -> symbol(node.value)
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is MST.Unary -> unaryOperation(node.operation, evaluate(node.value))
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is MST.Binary -> when {
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node.left is MST.Numeric && node.right is MST.Numeric -> {
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@ -1,56 +0,0 @@
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package scientifik.kmath.asm
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import scientifik.kmath.asm.internal.AsmGenerationContext
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import scientifik.kmath.ast.MST
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import scientifik.kmath.ast.evaluate
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import scientifik.kmath.expressions.Expression
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import scientifik.kmath.operations.*
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@PublishedApi
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internal fun buildName(expression: AsmNode<*>, collision: Int = 0): String {
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val name = "scientifik.kmath.expressions.generated.AsmCompiledExpression_${expression.hashCode()}_$collision"
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try {
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Class.forName(name)
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} catch (ignored: ClassNotFoundException) {
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return name
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}
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return buildName(expression, collision + 1)
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}
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@PublishedApi
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internal inline fun <reified T> AsmNode<T>.compile(algebra: Algebra<T>): Expression<T> {
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val ctx =
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AsmGenerationContext(T::class.java, algebra, buildName(this))
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compile(ctx)
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return ctx.generate()
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}
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inline fun <reified T, A : NumericAlgebra<T>, E : AsmExpressionAlgebra<T, A>> A.asm(
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expressionAlgebra: E,
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block: E.() -> AsmNode<T>
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): Expression<T> = expressionAlgebra.block().compile(expressionAlgebra.algebra)
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inline fun <reified T, A : NumericAlgebra<T>, E : AsmExpressionAlgebra<T, A>> A.asm(
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expressionAlgebra: E,
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ast: MST
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): Expression<T> = asm(expressionAlgebra) { evaluate(ast) }
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inline fun <reified T, A> A.asmSpace(block: AsmExpressionSpace<T, A>.() -> AsmNode<T>): Expression<T> where A : NumericAlgebra<T>, A : Space<T> =
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AsmExpressionSpace(this).let { it.block().compile(it.algebra) }
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inline fun <reified T, A> A.asmSpace(ast: MST): Expression<T> where A : NumericAlgebra<T>, A : Space<T> =
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asmSpace { evaluate(ast) }
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inline fun <reified T, A> A.asmRing(block: AsmExpressionRing<T, A>.() -> AsmNode<T>): Expression<T> where A : NumericAlgebra<T>, A : Ring<T> =
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AsmExpressionRing(this).let { it.block().compile(it.algebra) }
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inline fun <reified T, A> A.asmRing(ast: MST): Expression<T> where A : NumericAlgebra<T>, A : Ring<T> =
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asmRing { evaluate(ast) }
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inline fun <reified T, A> A.asmField(block: AsmExpressionField<T, A>.() -> AsmNode<T>): Expression<T> where A : NumericAlgebra<T>, A : Field<T> =
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AsmExpressionField(this).let { it.block().compile(it.algebra) }
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inline fun <reified T, A> A.asmField(ast: MST): Expression<T> where A : NumericAlgebra<T>, A : Field<T> =
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asmRing { evaluate(ast) }
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@ -1,19 +1,24 @@
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package scientifik.kmath.asm
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import scientifik.kmath.asm.internal.AsmGenerationContext
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import scientifik.kmath.asm.internal.AsmBuilder
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import scientifik.kmath.asm.internal.hasSpecific
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import scientifik.kmath.asm.internal.optimize
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import scientifik.kmath.asm.internal.tryInvokeSpecific
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import scientifik.kmath.expressions.Expression
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import scientifik.kmath.expressions.ExpressionAlgebra
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import scientifik.kmath.operations.*
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import kotlin.reflect.KClass
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/**
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* A function declaration that could be compiled to [AsmGenerationContext].
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* A function declaration that could be compiled to [AsmBuilder].
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*
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* @param T the type the stored function returns.
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*/
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abstract class AsmNode<T> internal constructor() {
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sealed class AsmExpression<T : Any>: Expression<T> {
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abstract val type: KClass<out T>
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abstract val algebra: Algebra<T>
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/**
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* Tries to evaluate this function without its variables. This method is intended for optimization.
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*
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@ -24,118 +29,144 @@ abstract class AsmNode<T> internal constructor() {
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/**
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* Compiles this declaration.
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*
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* @param gen the target [AsmGenerationContext].
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* @param gen the target [AsmBuilder].
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*/
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@PublishedApi
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internal abstract fun compile(gen: AsmGenerationContext<T>)
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internal abstract fun appendTo(gen: AsmBuilder<T>)
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/**
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* Compile and cache the expression
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*/
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private val compiledExpression by lazy{
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val builder = AsmBuilder(type.java, algebra, buildName(this))
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this.appendTo(builder)
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builder.generate()
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}
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override fun invoke(arguments: Map<String, T>): T = compiledExpression.invoke(arguments)
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}
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internal class AsmUnaryOperation<T>(private val context: Algebra<T>, private val name: String, expr: AsmNode<T>) :
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AsmNode<T>() {
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private val expr: AsmNode<T> = expr.optimize()
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override fun tryEvaluate(): T? = context { unaryOperation(name, expr.tryEvaluate() ?: return@context null) }
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internal class AsmUnaryOperation<T : Any>(
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override val type: KClass<out T>,
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override val algebra: Algebra<T>,
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private val name: String,
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expr: AsmExpression<T>
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) : AsmExpression<T>() {
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private val expr: AsmExpression<T> = expr.optimize()
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override fun tryEvaluate(): T? = algebra { unaryOperation(name, expr.tryEvaluate() ?: return@algebra null) }
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override fun compile(gen: AsmGenerationContext<T>) {
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override fun appendTo(gen: AsmBuilder<T>) {
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gen.visitLoadAlgebra()
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if (!hasSpecific(context, name, 1))
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if (!hasSpecific(algebra, name, 1))
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gen.visitStringConstant(name)
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expr.compile(gen)
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expr.appendTo(gen)
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if (gen.tryInvokeSpecific(context, name, 1))
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if (gen.tryInvokeSpecific(algebra, name, 1))
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return
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gen.visitAlgebraOperation(
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owner = AsmGenerationContext.ALGEBRA_CLASS,
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owner = AsmBuilder.ALGEBRA_CLASS,
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method = "unaryOperation",
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descriptor = "(L${AsmGenerationContext.STRING_CLASS};" +
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"L${AsmGenerationContext.OBJECT_CLASS};)" +
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"L${AsmGenerationContext.OBJECT_CLASS};"
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descriptor = "(L${AsmBuilder.STRING_CLASS};" +
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"L${AsmBuilder.OBJECT_CLASS};)" +
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"L${AsmBuilder.OBJECT_CLASS};"
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)
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}
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}
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internal class AsmBinaryOperation<T>(
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private val context: Algebra<T>,
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internal class AsmBinaryOperation<T : Any>(
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override val type: KClass<out T>,
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override val algebra: Algebra<T>,
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private val name: String,
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first: AsmNode<T>,
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second: AsmNode<T>
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) : AsmNode<T>() {
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private val first: AsmNode<T> = first.optimize()
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private val second: AsmNode<T> = second.optimize()
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first: AsmExpression<T>,
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second: AsmExpression<T>
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) : AsmExpression<T>() {
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private val first: AsmExpression<T> = first.optimize()
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private val second: AsmExpression<T> = second.optimize()
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override fun tryEvaluate(): T? = context {
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override fun tryEvaluate(): T? = algebra {
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binaryOperation(
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name,
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first.tryEvaluate() ?: return@context null,
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second.tryEvaluate() ?: return@context null
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first.tryEvaluate() ?: return@algebra null,
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second.tryEvaluate() ?: return@algebra null
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)
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}
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override fun compile(gen: AsmGenerationContext<T>) {
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override fun appendTo(gen: AsmBuilder<T>) {
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gen.visitLoadAlgebra()
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if (!hasSpecific(context, name, 2))
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if (!hasSpecific(algebra, name, 2))
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gen.visitStringConstant(name)
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first.compile(gen)
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second.compile(gen)
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first.appendTo(gen)
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second.appendTo(gen)
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if (gen.tryInvokeSpecific(context, name, 2))
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if (gen.tryInvokeSpecific(algebra, name, 2))
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return
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gen.visitAlgebraOperation(
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owner = AsmGenerationContext.ALGEBRA_CLASS,
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owner = AsmBuilder.ALGEBRA_CLASS,
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method = "binaryOperation",
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descriptor = "(L${AsmGenerationContext.STRING_CLASS};" +
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"L${AsmGenerationContext.OBJECT_CLASS};" +
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"L${AsmGenerationContext.OBJECT_CLASS};)" +
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"L${AsmGenerationContext.OBJECT_CLASS};"
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descriptor = "(L${AsmBuilder.STRING_CLASS};" +
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"L${AsmBuilder.OBJECT_CLASS};" +
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"L${AsmBuilder.OBJECT_CLASS};)" +
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"L${AsmBuilder.OBJECT_CLASS};"
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)
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}
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}
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internal class AsmVariableExpression<T>(private val name: String, private val default: T? = null) :
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AsmNode<T>() {
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override fun compile(gen: AsmGenerationContext<T>): Unit = gen.visitLoadFromVariables(name, default)
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internal class AsmVariableExpression<T : Any>(
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override val type: KClass<out T>,
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override val algebra: Algebra<T>,
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private val name: String,
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private val default: T? = null
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) : AsmExpression<T>() {
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override fun appendTo(gen: AsmBuilder<T>): Unit = gen.visitLoadFromVariables(name, default)
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}
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internal class AsmConstantExpression<T>(private val value: T) :
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AsmNode<T>() {
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internal class AsmConstantExpression<T : Any>(
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override val type: KClass<out T>,
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override val algebra: Algebra<T>,
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private val value: T
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) : AsmExpression<T>() {
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override fun tryEvaluate(): T = value
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override fun compile(gen: AsmGenerationContext<T>): Unit = gen.visitLoadFromConstants(value)
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override fun appendTo(gen: AsmBuilder<T>): Unit = gen.visitLoadFromConstants(value)
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}
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internal class AsmConstProductExpression<T>(
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private val context: Space<T>,
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expr: AsmNode<T>,
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internal class AsmConstProductExpression<T : Any>(
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override val type: KClass<out T>,
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override val algebra: Space<T>,
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expr: AsmExpression<T>,
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private val const: Number
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) : AsmNode<T>() {
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private val expr: AsmNode<T> = expr.optimize()
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) : AsmExpression<T>() {
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private val expr: AsmExpression<T> = expr.optimize()
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override fun tryEvaluate(): T? = context { (expr.tryEvaluate() ?: return@context null) * const }
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override fun tryEvaluate(): T? = algebra { (expr.tryEvaluate() ?: return@algebra null) * const }
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override fun compile(gen: AsmGenerationContext<T>) {
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override fun appendTo(gen: AsmBuilder<T>) {
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gen.visitLoadAlgebra()
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gen.visitNumberConstant(const)
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expr.compile(gen)
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expr.appendTo(gen)
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gen.visitAlgebraOperation(
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owner = AsmGenerationContext.SPACE_OPERATIONS_CLASS,
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owner = AsmBuilder.SPACE_OPERATIONS_CLASS,
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method = "multiply",
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descriptor = "(L${AsmGenerationContext.OBJECT_CLASS};" +
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"L${AsmGenerationContext.NUMBER_CLASS};)" +
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"L${AsmGenerationContext.OBJECT_CLASS};"
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descriptor = "(L${AsmBuilder.OBJECT_CLASS};" +
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"L${AsmBuilder.NUMBER_CLASS};)" +
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"L${AsmBuilder.OBJECT_CLASS};"
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)
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}
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}
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internal class AsmNumberExpression<T>(private val context: NumericAlgebra<T>, private val value: Number) :
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AsmNode<T>() {
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override fun tryEvaluate(): T? = context.number(value)
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internal class AsmNumberExpression<T : Any>(
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override val type: KClass<out T>,
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override val algebra: NumericAlgebra<T>,
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private val value: Number
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) : AsmExpression<T>() {
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override fun tryEvaluate(): T? = algebra.number(value)
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override fun compile(gen: AsmGenerationContext<T>): Unit = gen.visitNumberConstant(value)
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override fun appendTo(gen: AsmBuilder<T>): Unit = gen.visitNumberConstant(value)
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}
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internal abstract class FunctionalCompiledExpression<T> internal constructor(
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@ -146,120 +177,116 @@ internal abstract class FunctionalCompiledExpression<T> internal constructor(
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}
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/**
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* A context class for [AsmNode] construction.
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* A context class for [AsmExpression] construction.
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*
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* @param algebra The algebra to provide for AsmExpressions built.
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*/
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interface AsmExpressionAlgebra<T, A : NumericAlgebra<T>> : NumericAlgebra<AsmNode<T>>,
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ExpressionAlgebra<T, AsmNode<T>> {
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/**
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* The algebra to provide for AsmExpressions built.
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*/
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val algebra: A
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open class AsmExpressionAlgebra<T : Any, A : NumericAlgebra<T>>(val type: KClass<out T>, val algebra: A) :
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NumericAlgebra<AsmExpression<T>>, ExpressionAlgebra<T, AsmExpression<T>> {
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/**
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* Builds an AsmExpression to wrap a number.
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*/
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override fun number(value: Number): AsmNode<T> = AsmNumberExpression(algebra, value)
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override fun number(value: Number): AsmExpression<T> = AsmNumberExpression(type, algebra, value)
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/**
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* Builds an AsmExpression of constant expression which does not depend on arguments.
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*/
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override fun const(value: T): AsmNode<T> = AsmConstantExpression(value)
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override fun const(value: T): AsmExpression<T> = AsmConstantExpression(type, algebra, value)
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/**
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* Builds an AsmExpression to access a variable.
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*/
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override fun variable(name: String, default: T?): AsmNode<T> = AsmVariableExpression(name, default)
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override fun variable(name: String, default: T?): AsmExpression<T> = AsmVariableExpression(type, algebra, name, default)
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/**
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* Builds an AsmExpression of dynamic call of binary operation [operation] on [left] and [right].
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*/
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override fun binaryOperation(operation: String, left: AsmNode<T>, right: AsmNode<T>): AsmNode<T> =
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AsmBinaryOperation(algebra, operation, left, right)
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override fun binaryOperation(operation: String, left: AsmExpression<T>, right: AsmExpression<T>): AsmExpression<T> =
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AsmBinaryOperation(type, algebra, operation, left, right)
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/**
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* Builds an AsmExpression of dynamic call of unary operation with name [operation] on [arg].
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*/
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override fun unaryOperation(operation: String, arg: AsmNode<T>): AsmNode<T> =
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AsmUnaryOperation(algebra, operation, arg)
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override fun unaryOperation(operation: String, arg: AsmExpression<T>): AsmExpression<T> =
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AsmUnaryOperation(type, algebra, operation, arg)
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}
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/**
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* A context class for [AsmNode] construction for [Space] algebras.
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* A context class for [AsmExpression] construction for [Space] algebras.
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*/
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open class AsmExpressionSpace<T, A>(override val algebra: A) : AsmExpressionAlgebra<T, A>,
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Space<AsmNode<T>> where A : Space<T>, A : NumericAlgebra<T> {
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override val zero: AsmNode<T>
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get() = const(algebra.zero)
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open class AsmExpressionSpace<T : Any, A>(type: KClass<out T>, algebra: A) : AsmExpressionAlgebra<T, A>(type, algebra),
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Space<AsmExpression<T>> where A : Space<T>, A : NumericAlgebra<T> {
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override val zero: AsmExpression<T> get() = const(algebra.zero)
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/**
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* Builds an AsmExpression of addition of two another expressions.
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*/
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override fun add(a: AsmNode<T>, b: AsmNode<T>): AsmNode<T> =
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AsmBinaryOperation(algebra, SpaceOperations.PLUS_OPERATION, a, b)
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override fun add(a: AsmExpression<T>, b: AsmExpression<T>): AsmExpression<T> =
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AsmBinaryOperation(type, algebra, SpaceOperations.PLUS_OPERATION, a, b)
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/**
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* Builds an AsmExpression of multiplication of expression by number.
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*/
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override fun multiply(a: AsmNode<T>, k: Number): AsmNode<T> = AsmConstProductExpression(algebra, a, k)
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override fun multiply(a: AsmExpression<T>, k: Number): AsmExpression<T> = AsmConstProductExpression(type, algebra, a, k)
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operator fun AsmNode<T>.plus(arg: T): AsmNode<T> = this + const(arg)
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operator fun AsmNode<T>.minus(arg: T): AsmNode<T> = this - const(arg)
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operator fun T.plus(arg: AsmNode<T>): AsmNode<T> = arg + this
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operator fun T.minus(arg: AsmNode<T>): AsmNode<T> = arg - this
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operator fun AsmExpression<T>.plus(arg: T): AsmExpression<T> = this + const(arg)
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operator fun AsmExpression<T>.minus(arg: T): AsmExpression<T> = this - const(arg)
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operator fun T.plus(arg: AsmExpression<T>): AsmExpression<T> = arg + this
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operator fun T.minus(arg: AsmExpression<T>): AsmExpression<T> = arg - this
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override fun unaryOperation(operation: String, arg: AsmNode<T>): AsmNode<T> =
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override fun unaryOperation(operation: String, arg: AsmExpression<T>): AsmExpression<T> =
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super<AsmExpressionAlgebra>.unaryOperation(operation, arg)
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override fun binaryOperation(operation: String, left: AsmNode<T>, right: AsmNode<T>): AsmNode<T> =
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override fun binaryOperation(operation: String, left: AsmExpression<T>, right: AsmExpression<T>): AsmExpression<T> =
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super<AsmExpressionAlgebra>.binaryOperation(operation, left, right)
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}
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/**
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* A context class for [AsmNode] construction for [Ring] algebras.
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* A context class for [AsmExpression] construction for [Ring] algebras.
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*/
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open class AsmExpressionRing<T, A>(override val algebra: A) : AsmExpressionSpace<T, A>(algebra),
|
||||
Ring<AsmNode<T>> where A : Ring<T>, A : NumericAlgebra<T> {
|
||||
override val one: AsmNode<T>
|
||||
get() = const(algebra.one)
|
||||
open class AsmExpressionRing<T : Any, A>(type: KClass<out T>, algebra: A) : AsmExpressionSpace<T, A>(type, algebra),
|
||||
Ring<AsmExpression<T>> where A : Ring<T>, A : NumericAlgebra<T> {
|
||||
override val one: AsmExpression<T> get() = const(algebra.one)
|
||||
|
||||
/**
|
||||
* Builds an AsmExpression of multiplication of two expressions.
|
||||
*/
|
||||
override fun multiply(a: AsmNode<T>, b: AsmNode<T>): AsmNode<T> =
|
||||
AsmBinaryOperation(algebra, RingOperations.TIMES_OPERATION, a, b)
|
||||
override fun multiply(a: AsmExpression<T>, b: AsmExpression<T>): AsmExpression<T> =
|
||||
AsmBinaryOperation(type, algebra, RingOperations.TIMES_OPERATION, a, b)
|
||||
|
||||
operator fun AsmNode<T>.times(arg: T): AsmNode<T> = this * const(arg)
|
||||
operator fun T.times(arg: AsmNode<T>): AsmNode<T> = arg * this
|
||||
operator fun AsmExpression<T>.times(arg: T): AsmExpression<T> = this * const(arg)
|
||||
operator fun T.times(arg: AsmExpression<T>): AsmExpression<T> = arg * this
|
||||
|
||||
override fun unaryOperation(operation: String, arg: AsmNode<T>): AsmNode<T> =
|
||||
override fun unaryOperation(operation: String, arg: AsmExpression<T>): AsmExpression<T> =
|
||||
super<AsmExpressionSpace>.unaryOperation(operation, arg)
|
||||
|
||||
override fun binaryOperation(operation: String, left: AsmNode<T>, right: AsmNode<T>): AsmNode<T> =
|
||||
override fun binaryOperation(operation: String, left: AsmExpression<T>, right: AsmExpression<T>): AsmExpression<T> =
|
||||
super<AsmExpressionSpace>.binaryOperation(operation, left, right)
|
||||
|
||||
override fun number(value: Number): AsmNode<T> = super<AsmExpressionSpace>.number(value)
|
||||
override fun number(value: Number): AsmExpression<T> = super<AsmExpressionSpace>.number(value)
|
||||
}
|
||||
|
||||
/**
|
||||
* A context class for [AsmNode] construction for [Field] algebras.
|
||||
* A context class for [AsmExpression] construction for [Field] algebras.
|
||||
*/
|
||||
open class AsmExpressionField<T, A>(override val algebra: A) :
|
||||
AsmExpressionRing<T, A>(algebra),
|
||||
Field<AsmNode<T>> where A : Field<T>, A : NumericAlgebra<T> {
|
||||
open class AsmExpressionField<T : Any, A>(type: KClass<out T>, algebra: A) :
|
||||
AsmExpressionRing<T, A>(type, algebra),
|
||||
Field<AsmExpression<T>> where A : Field<T>, A : NumericAlgebra<T> {
|
||||
/**
|
||||
* Builds an AsmExpression of division an expression by another one.
|
||||
*/
|
||||
override fun divide(a: AsmNode<T>, b: AsmNode<T>): AsmNode<T> =
|
||||
AsmBinaryOperation(algebra, FieldOperations.DIV_OPERATION, a, b)
|
||||
override fun divide(a: AsmExpression<T>, b: AsmExpression<T>): AsmExpression<T> =
|
||||
AsmBinaryOperation(type, algebra, FieldOperations.DIV_OPERATION, a, b)
|
||||
|
||||
operator fun AsmNode<T>.div(arg: T): AsmNode<T> = this / const(arg)
|
||||
operator fun T.div(arg: AsmNode<T>): AsmNode<T> = arg / this
|
||||
operator fun AsmExpression<T>.div(arg: T): AsmExpression<T> = this / const(arg)
|
||||
operator fun T.div(arg: AsmExpression<T>): AsmExpression<T> = arg / this
|
||||
|
||||
override fun unaryOperation(operation: String, arg: AsmNode<T>): AsmNode<T> =
|
||||
override fun unaryOperation(operation: String, arg: AsmExpression<T>): AsmExpression<T> =
|
||||
super<AsmExpressionRing>.unaryOperation(operation, arg)
|
||||
|
||||
override fun binaryOperation(operation: String, left: AsmNode<T>, right: AsmNode<T>): AsmNode<T> =
|
||||
override fun binaryOperation(operation: String, left: AsmExpression<T>, right: AsmExpression<T>): AsmExpression<T> =
|
||||
super<AsmExpressionRing>.binaryOperation(operation, left, right)
|
||||
|
||||
override fun number(value: Number): AsmNode<T> = super<AsmExpressionRing>.number(value)
|
||||
override fun number(value: Number): AsmExpression<T> = super<AsmExpressionRing>.number(value)
|
||||
}
|
||||
|
||||
47
kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/asm.kt
Normal file
47
kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/asm.kt
Normal file
@ -0,0 +1,47 @@
|
||||
package scientifik.kmath.asm
|
||||
|
||||
import scientifik.kmath.ast.MST
|
||||
import scientifik.kmath.ast.evaluate
|
||||
import scientifik.kmath.expressions.Expression
|
||||
import scientifik.kmath.operations.Field
|
||||
import scientifik.kmath.operations.NumericAlgebra
|
||||
import scientifik.kmath.operations.Ring
|
||||
import scientifik.kmath.operations.Space
|
||||
|
||||
internal fun buildName(expression: AsmExpression<*>, collision: Int = 0): String {
|
||||
val name = "scientifik.kmath.expressions.generated.AsmCompiledExpression_${expression.hashCode()}_$collision"
|
||||
|
||||
try {
|
||||
Class.forName(name)
|
||||
} catch (ignored: ClassNotFoundException) {
|
||||
return name
|
||||
}
|
||||
|
||||
return buildName(expression, collision + 1)
|
||||
}
|
||||
|
||||
inline fun <reified T : Any, A : NumericAlgebra<T>, E : AsmExpressionAlgebra<T, A>> A.asm(
|
||||
expressionAlgebra: E,
|
||||
block: E.() -> AsmExpression<T>
|
||||
): Expression<T> = expressionAlgebra.block()
|
||||
|
||||
inline fun <reified T : Any> NumericAlgebra<T>.asm(ast: MST): Expression<T> =
|
||||
AsmExpressionAlgebra(T::class, this).evaluate(ast)
|
||||
|
||||
inline fun <reified T : Any, A> A.asmSpace(block: AsmExpressionSpace<T, A>.() -> AsmExpression<T>): Expression<T> where A : NumericAlgebra<T>, A : Space<T> =
|
||||
AsmExpressionSpace<T, A>(T::class, this).block()
|
||||
|
||||
inline fun <reified T : Any, A> A.asmSpace(ast: MST): Expression<T> where A : NumericAlgebra<T>, A : Space<T> =
|
||||
asmSpace { evaluate(ast) }
|
||||
|
||||
inline fun <reified T : Any, A> A.asmRing(block: AsmExpressionRing<T, A>.() -> AsmExpression<T>): Expression<T> where A : NumericAlgebra<T>, A : Ring<T> =
|
||||
AsmExpressionRing(T::class, this).block()
|
||||
|
||||
inline fun <reified T : Any, A> A.asmRing(ast: MST): Expression<T> where A : NumericAlgebra<T>, A : Ring<T> =
|
||||
asmRing { evaluate(ast) }
|
||||
|
||||
inline fun <reified T : Any, A> A.asmField(block: AsmExpressionField<T, A>.() -> AsmExpression<T>): Expression<T> where A : NumericAlgebra<T>, A : Field<T> =
|
||||
AsmExpressionField(T::class, this).block()
|
||||
|
||||
inline fun <reified T : Any, A> A.asmField(ast: MST): Expression<T> where A : NumericAlgebra<T>, A : Field<T> =
|
||||
asmRing { evaluate(ast) }
|
||||
@ -5,30 +5,29 @@ import org.objectweb.asm.Label
|
||||
import org.objectweb.asm.MethodVisitor
|
||||
import org.objectweb.asm.Opcodes
|
||||
import scientifik.kmath.asm.FunctionalCompiledExpression
|
||||
import scientifik.kmath.asm.internal.AsmGenerationContext.ClassLoader
|
||||
import scientifik.kmath.asm.internal.AsmBuilder.AsmClassLoader
|
||||
import scientifik.kmath.operations.Algebra
|
||||
|
||||
/**
|
||||
* AsmGenerationContext is a structure that abstracts building a class that unwraps [AsmNode] to plain Java
|
||||
* expression. This class uses [ClassLoader] for loading the generated class, then it is able to instantiate the new
|
||||
* expression. This class uses [AsmClassLoader] 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.
|
||||
*/
|
||||
@PublishedApi
|
||||
internal class AsmGenerationContext<T> @PublishedApi internal constructor(
|
||||
internal class AsmBuilder<T>(
|
||||
private val classOfT: Class<*>,
|
||||
private val algebra: Algebra<T>,
|
||||
private val className: String
|
||||
) {
|
||||
private class ClassLoader(parent: java.lang.ClassLoader) : java.lang.ClassLoader(parent) {
|
||||
private class AsmClassLoader(parent: ClassLoader) : ClassLoader(parent) {
|
||||
internal fun defineClass(name: String?, b: ByteArray): Class<*> = defineClass(name, b, 0, b.size)
|
||||
}
|
||||
|
||||
private val classLoader: ClassLoader =
|
||||
ClassLoader(javaClass.classLoader)
|
||||
private val classLoader: AsmClassLoader =
|
||||
AsmClassLoader(javaClass.classLoader)
|
||||
|
||||
@Suppress("PrivatePropertyName")
|
||||
private val T_ALGEBRA_CLASS: String = algebra.javaClass.name.replace(oldChar = '.', newChar = '/')
|
||||
@ -113,9 +112,8 @@ internal class AsmGenerationContext<T> @PublishedApi internal constructor(
|
||||
}
|
||||
}
|
||||
|
||||
@PublishedApi
|
||||
@Suppress("UNCHECKED_CAST")
|
||||
internal fun generate(): FunctionalCompiledExpression<T> {
|
||||
fun generate(): FunctionalCompiledExpression<T> {
|
||||
generatedInstance?.let { return it }
|
||||
|
||||
invokeMethodVisitor.run {
|
||||
@ -188,7 +186,7 @@ internal class AsmGenerationContext<T> @PublishedApi internal constructor(
|
||||
return new
|
||||
}
|
||||
|
||||
internal fun visitLoadFromConstants(value: T) {
|
||||
fun visitLoadFromConstants(value: T) {
|
||||
if (classOfT in INLINABLE_NUMBERS) {
|
||||
visitNumberConstant(value as Number)
|
||||
visitCastToT()
|
||||
@ -213,7 +211,7 @@ internal class AsmGenerationContext<T> @PublishedApi internal constructor(
|
||||
|
||||
private fun visitLoadThis(): Unit = invokeMethodVisitor.visitVarInsn(Opcodes.ALOAD, invokeThisVar)
|
||||
|
||||
internal fun visitNumberConstant(value: Number) {
|
||||
fun visitNumberConstant(value: Number) {
|
||||
maxStack++
|
||||
val clazz = value.javaClass
|
||||
val c = clazz.name.replace('.', '/')
|
||||
@ -234,7 +232,7 @@ internal class AsmGenerationContext<T> @PublishedApi internal constructor(
|
||||
visitLoadAnyFromConstants(value, c)
|
||||
}
|
||||
|
||||
internal fun visitLoadFromVariables(name: String, defaultValue: T? = null): Unit = invokeMethodVisitor.run {
|
||||
fun visitLoadFromVariables(name: String, defaultValue: T? = null): Unit = invokeMethodVisitor.run {
|
||||
maxStack += 2
|
||||
visitVarInsn(Opcodes.ALOAD, invokeArgumentsVar)
|
||||
|
||||
@ -262,7 +260,7 @@ internal class AsmGenerationContext<T> @PublishedApi internal constructor(
|
||||
visitCastToT()
|
||||
}
|
||||
|
||||
internal fun visitLoadAlgebra() {
|
||||
fun visitLoadAlgebra() {
|
||||
maxStack++
|
||||
invokeMethodVisitor.visitVarInsn(Opcodes.ALOAD, invokeThisVar)
|
||||
|
||||
@ -274,7 +272,7 @@ internal class AsmGenerationContext<T> @PublishedApi internal constructor(
|
||||
invokeMethodVisitor.visitTypeInsn(Opcodes.CHECKCAST, T_ALGEBRA_CLASS)
|
||||
}
|
||||
|
||||
internal fun visitAlgebraOperation(
|
||||
fun visitAlgebraOperation(
|
||||
owner: String,
|
||||
method: String,
|
||||
descriptor: String,
|
||||
@ -288,13 +286,12 @@ internal class AsmGenerationContext<T> @PublishedApi internal constructor(
|
||||
|
||||
private fun visitCastToT(): Unit = invokeMethodVisitor.visitTypeInsn(Opcodes.CHECKCAST, T_CLASS)
|
||||
|
||||
internal fun visitStringConstant(string: String) {
|
||||
fun visitStringConstant(string: String) {
|
||||
invokeMethodVisitor.visitLdcInsn(string)
|
||||
}
|
||||
|
||||
internal companion object {
|
||||
private val SIGNATURE_LETTERS by lazy {
|
||||
mapOf(
|
||||
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",
|
||||
@ -302,18 +299,15 @@ internal class AsmGenerationContext<T> @PublishedApi internal constructor(
|
||||
java.lang.Float::class.java to "F",
|
||||
java.lang.Double::class.java to "D"
|
||||
)
|
||||
}
|
||||
|
||||
private val INLINABLE_NUMBERS by lazy { SIGNATURE_LETTERS.keys }
|
||||
private val INLINABLE_NUMBERS = SIGNATURE_LETTERS.keys
|
||||
|
||||
internal const val FUNCTIONAL_COMPILED_EXPRESSION_CLASS =
|
||||
"scientifik/kmath/asm/FunctionalCompiledExpression"
|
||||
|
||||
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 SPACE_OPERATIONS_CLASS = "scientifik/kmath/operations/SpaceOperations"
|
||||
internal const val STRING_CLASS = "java/lang/String"
|
||||
internal const val NUMBER_CLASS = "java/lang/Number"
|
||||
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"
|
||||
}
|
||||
}
|
||||
@ -2,7 +2,7 @@ package scientifik.kmath.asm.internal
|
||||
|
||||
import org.objectweb.asm.Opcodes
|
||||
import scientifik.kmath.asm.AsmConstantExpression
|
||||
import scientifik.kmath.asm.AsmNode
|
||||
import scientifik.kmath.asm.AsmExpression
|
||||
import scientifik.kmath.operations.Algebra
|
||||
|
||||
private val methodNameAdapters: Map<String, String> = mapOf("+" to "add", "*" to "multiply", "/" to "divide")
|
||||
@ -16,7 +16,7 @@ internal fun <T> hasSpecific(context: Algebra<T>, name: String, arity: Int): Boo
|
||||
return true
|
||||
}
|
||||
|
||||
internal fun <T> AsmGenerationContext<T>.tryInvokeSpecific(context: Algebra<T>, name: String, arity: Int): Boolean {
|
||||
internal fun <T> AsmBuilder<T>.tryInvokeSpecific(context: Algebra<T>, name: String, arity: Int): Boolean {
|
||||
val aName = methodNameAdapters[name] ?: name
|
||||
|
||||
context::class.java.methods.find { it.name == aName && it.parameters.size == arity }
|
||||
@ -26,9 +26,9 @@ internal fun <T> AsmGenerationContext<T>.tryInvokeSpecific(context: Algebra<T>,
|
||||
|
||||
val sig = buildString {
|
||||
append('(')
|
||||
repeat(arity) { append("L${AsmGenerationContext.OBJECT_CLASS};") }
|
||||
repeat(arity) { append("L${AsmBuilder.OBJECT_CLASS};") }
|
||||
append(')')
|
||||
append("L${AsmGenerationContext.OBJECT_CLASS};")
|
||||
append("L${AsmBuilder.OBJECT_CLASS};")
|
||||
}
|
||||
|
||||
visitAlgebraOperation(
|
||||
@ -42,8 +42,7 @@ internal fun <T> AsmGenerationContext<T>.tryInvokeSpecific(context: Algebra<T>,
|
||||
return true
|
||||
}
|
||||
|
||||
@PublishedApi
|
||||
internal fun <T> AsmNode<T>.optimize(): AsmNode<T> {
|
||||
internal fun <T : Any> AsmExpression<T>.optimize(): AsmExpression<T> {
|
||||
val a = tryEvaluate()
|
||||
return if (a == null) this else AsmConstantExpression(a)
|
||||
return if (a == null) this else AsmConstantExpression(type, algebra, a)
|
||||
}
|
||||
@ -1,4 +1,4 @@
|
||||
package scietifik.kmath.ast.asm
|
||||
package scietifik.kmath.asm
|
||||
|
||||
import scientifik.kmath.asm.asmField
|
||||
import scientifik.kmath.asm.asmRing
|
||||
@ -1,4 +1,4 @@
|
||||
package scietifik.kmath.ast.asm
|
||||
package scietifik.kmath.asm
|
||||
|
||||
import scientifik.kmath.asm.asmField
|
||||
import scientifik.kmath.expressions.invoke
|
||||
@ -31,7 +31,7 @@ class ExpressionFieldTest {
|
||||
|
||||
@Test
|
||||
fun separateContext() {
|
||||
fun <T> FunctionalExpressionField<T>.expression(): Expression<T> {
|
||||
fun <T> FunctionalExpressionField<T,*>.expression(): Expression<T> {
|
||||
val x = variable("x")
|
||||
return x * x + 2 * x + one
|
||||
}
|
||||
@ -42,7 +42,7 @@ class ExpressionFieldTest {
|
||||
|
||||
@Test
|
||||
fun valueExpression() {
|
||||
val expressionBuilder: FunctionalExpressionField<Double>.() -> Expression<Double> = {
|
||||
val expressionBuilder: FunctionalExpressionField<Double,*>.() -> Expression<Double> = {
|
||||
val x = variable("x")
|
||||
x * x + 2 * x + one
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user