README.md

@@ -89,7 +89,16 @@ submit a feature request if you want something to be implemented first.
 * ### [kmath-ast](kmath-ast)
 > 
 >
-> **Maturity**: EXPERIMENTAL
+> **Maturity**: PROTOTYPE
+>
+> **Features:**
+> - [expression-language](kmath-ast/src/jvmMain/kotlin/kscience/kmath/ast/parser.kt) : Expression language and its parser
+> - [mst](kmath-ast/src/commonMain/kotlin/kscience/kmath/ast/MST.kt) : MST (Mathematical Syntax Tree) as expression language's syntax intermediate representation
+> - [mst-building](kmath-ast/src/commonMain/kotlin/kscience/kmath/ast/MstAlgebra.kt) : MST building algebraic structure
+> - [mst-interpreter](kmath-ast/src/commonMain/kotlin/kscience/kmath/ast/MST.kt) : MST interpreter
+> - [mst-jvm-codegen](kmath-ast/src/jvmMain/kotlin/kscience/kmath/asm/asm.kt) : Dynamic MST to JVM bytecode compiler
+> - [mst-js-codegen](kmath-ast/src/jsMain/kotlin/kscience/kmath/estree/estree.kt) : Dynamic MST to JS compiler
+
 <hr/>
 
 * ### [kmath-commons](kmath-commons)
@@ -122,7 +131,7 @@ submit a feature request if you want something to be implemented first.
 * ### [kmath-dimensions](kmath-dimensions)
 > 
 >
-> **Maturity**: EXPERIMENTAL
+> **Maturity**: PROTOTYPE
 <hr/>
 
 * ### [kmath-ejml](kmath-ejml)

kmath-ast/README.md

@@ -2,41 +2,51 @@
 
 This subproject implements the following features:
 
-- Expression Language and its parser.
-- MST (Mathematical Syntax Tree) as expression language's syntax intermediate representation.
-- Type-safe builder for MST.
-- Evaluating expressions by traversing MST.
+ - [expression-language](src/jvmMain/kotlin/kscience/kmath/ast/parser.kt) : Expression language and its parser
+ - [mst](src/commonMain/kotlin/kscience/kmath/ast/MST.kt) : MST (Mathematical Syntax Tree) as expression language's syntax intermediate representation
+ - [mst-building](src/commonMain/kotlin/kscience/kmath/ast/MstAlgebra.kt) : MST building algebraic structure
+ - [mst-interpreter](src/commonMain/kotlin/kscience/kmath/ast/MST.kt) : MST interpreter
+ - [mst-jvm-codegen](src/jvmMain/kotlin/kscience/kmath/asm/asm.kt) : Dynamic MST to JVM bytecode compiler
+ - [mst-js-codegen](src/jsMain/kotlin/kscience/kmath/estree/estree.kt) : Dynamic MST to JS compiler
+
 
 > #### Artifact:
-> This module is distributed in the artifact `kscience.kmath:kmath-ast:0.1.4-dev-8`.
+>
+> This module artifact: `kscience.kmath:kmath-ast:0.2.0-dev-4`.
+>
+> Bintray release version:        [ ![Download](https://api.bintray.com/packages/mipt-npm/kscience/kmath-ast/images/download.svg) ](https://bintray.com/mipt-npm/kscience/kmath-ast/_latestVersion)
+>
+> Bintray development version:    [ ![Download](https://api.bintray.com/packages/mipt-npm/dev/kmath-ast/images/download.svg) ](https://bintray.com/mipt-npm/dev/kmath-ast/_latestVersion)
 >
 > **Gradle:**
 >
 > ```gradle
 > repositories {
+>     maven { url "https://dl.bintray.com/kotlin/kotlin-eap" }
 >     maven { url 'https://dl.bintray.com/mipt-npm/kscience' }
 >     maven { url 'https://dl.bintray.com/mipt-npm/dev' }
->     maven { url https://dl.bintray.com/hotkeytlt/maven' }
+>     maven { url 'https://dl.bintray.com/hotkeytlt/maven' }
+
 > }
 > 
 > dependencies {
->     implementation 'kscience.kmath:kmath-ast:0.1.4-dev-8'
+>     implementation 'kscience.kmath:kmath-ast:0.2.0-dev-4'
 > }
 > ```
 > **Gradle Kotlin DSL:**
 >
 > ```kotlin
 > repositories {
+>     maven("https://dl.bintray.com/kotlin/kotlin-eap")
 >     maven("https://dl.bintray.com/mipt-npm/kscience")
 >     maven("https://dl.bintray.com/mipt-npm/dev")
 >     maven("https://dl.bintray.com/hotkeytlt/maven")
 > }
 > 
 > dependencies {
->     implementation("kscience.kmath:kmath-ast:0.1.4-dev-8")
+>     implementation("kscience.kmath:kmath-ast:0.2.0-dev-4")
 > }
 > ```
->
 
 ## Dynamic expression code generation
 
@@ -91,8 +101,6 @@ RealField.expression("x+2".parseMath())
   class loading overhead.
 - This API is not supported by non-dynamic JVM implementations (like TeaVM and GraalVM) because of using class loaders.
 
-Contributed by [Iaroslav Postovalov](https://github.com/CommanderTvis).
-
 ### On JS
 
 A similar feature is also available on JS.

kmath-ast/build.gradle.kts

@@ -42,4 +42,41 @@ kotlin.sourceSets {
 
 readme {
     maturity = Maturity.PROTOTYPE
+    propertyByTemplate("artifact", rootProject.file("docs/templates/ARTIFACT-TEMPLATE.md"))
+
+    feature(
+        id = "expression-language",
+        description = "Expression language and its parser",
+        ref = "src/jvmMain/kotlin/kscience/kmath/ast/parser.kt"
+    )
+
+    feature(
+        id = "mst",
+        description = "MST (Mathematical Syntax Tree) as expression language's syntax intermediate representation",
+        ref = "src/commonMain/kotlin/kscience/kmath/ast/MST.kt"
+    )
+
+    feature(
+        id = "mst-building",
+        description = "MST building algebraic structure",
+        ref = "src/commonMain/kotlin/kscience/kmath/ast/MstAlgebra.kt"
+    )
+
+    feature(
+        id = "mst-interpreter",
+        description = "MST interpreter",
+        ref = "src/commonMain/kotlin/kscience/kmath/ast/MST.kt"
+    )
+
+    feature(
+        id = "mst-jvm-codegen",
+        description = "Dynamic MST to JVM bytecode compiler",
+        ref = "src/jvmMain/kotlin/kscience/kmath/asm/asm.kt"
+    )
+
+    feature(
+        id = "mst-js-codegen",
+        description = "Dynamic MST to JS compiler",
+        ref = "src/jsMain/kotlin/kscience/kmath/estree/estree.kt"
+    )
 }

kmath-ast/docs/README-TEMPLATE.md

@@ -0,0 +1,80 @@
+# Abstract Syntax Tree Expression Representation and Operations (`kmath-ast`)
+
+This subproject implements the following features:
+
+${features}
+
+${artifact}
+
+## Dynamic expression code generation
+
+### On JVM
+
+`kmath-ast` JVM module supports runtime code generation to eliminate overhead of tree traversal. Code generator builds
+a special implementation of `Expression<T>` with implemented `invoke` function.
+
+For example, the following builder:
+
+```kotlin
+RealField.mstInField { symbol("x") + 2 }.compile()
+``` 
+
+… leads to generation of bytecode, which can be decompiled to the following Java class:
+
+```java
+package kscience.kmath.asm.generated;
+
+import java.util.Map;
+import kotlin.jvm.functions.Function2;
+import kscience.kmath.asm.internal.MapIntrinsics;
+import kscience.kmath.expressions.Expression;
+import kscience.kmath.expressions.Symbol;
+
+public final class AsmCompiledExpression_45045_0 implements Expression<Double> {
+    private final Object[] constants;
+
+    public final Double invoke(Map<Symbol, Double> arguments) {
+        return (Double)((Function2)this.constants[0]).invoke((Double)MapIntrinsics.getOrFail(arguments, "x"), 2);
+    }
+
+    public AsmCompiledExpression_45045_0(Object[] constants) {
+        this.constants = constants;
+    }
+}
+
+```
+
+### Example Usage
+
+This API extends MST and MstExpression, so you may optimize as both of them:
+
+```kotlin
+RealField.mstInField { symbol("x") + 2 }.compile()
+RealField.expression("x+2".parseMath())
+```
+
+#### Known issues
+
+- The same classes may be generated and loaded twice, so it is recommended to cache compiled expressions to avoid
+  class loading overhead.
+- This API is not supported by non-dynamic JVM implementations (like TeaVM and GraalVM) because of using class loaders.
+
+### On JS
+
+A similar feature is also available on JS.
+
+```kotlin
+RealField.mstInField { symbol("x") + 2 }.compile()
+``` 
+
+The code above returns expression implemented with such a JS function:
+
+```js
+var executable = function (constants, arguments) {
+  return constants[1](constants[0](arguments, "x"), 2);
+};
+```
+
+#### Known issues
+
+- This feature uses `eval` which can be unavailable in several environments.