Merge pull request #942 from corda/kat-carpentty

Add array support to the class carpenter
This commit is contained in:
Katelyn Baker 2017-07-10 17:24:28 +01:00 committed by GitHub
commit 5b78863e57
2 changed files with 475 additions and 84 deletions

View File

@ -1,10 +1,13 @@
package net.corda.carpenter
package net.corda.core.serialization.carpenter
import org.objectweb.asm.ClassWriter
import org.objectweb.asm.MethodVisitor
import org.objectweb.asm.Opcodes.*
import org.objectweb.asm.Type
import java.lang.Character.*
import java.lang.Character.isJavaIdentifierPart
import java.lang.Character.isJavaIdentifierStart
import java.util.*
/**
@ -16,6 +19,7 @@ interface SimpleFieldAccess {
operator fun get(name: String): Any?
}
/**
* A class carpenter generates JVM bytecodes for a class given a schema and then loads it into a sub-classloader.
* The generated classes have getters, a toString method and implement a simple property access interface. The
@ -61,22 +65,122 @@ interface SimpleFieldAccess {
* Equals/hashCode methods are not yet supported.
*/
class ClassCarpenter {
// TODO: Array types.
// TODO: Generics.
// TODO: Sandbox the generated code when a security manager is in use.
// TODO: Generate equals/hashCode.
// TODO: Support annotations.
// TODO: isFoo getter patterns for booleans (this is what Kotlin generates)
class DuplicateNameException : RuntimeException("An attempt was made to register two classes with the same name within the same ClassCarpenter namespace.")
class InterfaceMismatchException(msg: String) : RuntimeException(msg)
class NullablePrimitiveException(msg: String) : RuntimeException(msg)
abstract class Field(val field: Class<out Any?>) {
companion object {
const val unsetName = "Unset"
}
var name: String = unsetName
abstract val nullabilityAnnotation: String
val descriptor: String
get() = Type.getDescriptor(this.field)
val type: String
get() = if (this.field.isPrimitive) this.descriptor else "Ljava/lang/Object;"
fun generateField(cw: ClassWriter) {
println ("generateField $name $nullabilityAnnotation")
val fieldVisitor = cw.visitField(ACC_PROTECTED + ACC_FINAL, name, descriptor, null, null)
fieldVisitor.visitAnnotation(nullabilityAnnotation, true).visitEnd()
fieldVisitor.visitEnd()
}
fun addNullabilityAnnotation(mv: MethodVisitor) {
mv.visitAnnotation(nullabilityAnnotation, true).visitEnd()
}
fun visitParameter(mv: MethodVisitor, idx: Int) {
with(mv) {
visitParameter(name, 0)
if (!field.isPrimitive) {
visitParameterAnnotation(idx, nullabilityAnnotation, true).visitEnd()
}
}
}
abstract fun copy(name: String, field: Class<out Any?>): Field
abstract fun nullTest(mv: MethodVisitor, slot: Int)
}
class NonNullableField(field: Class<out Any?>) : Field(field) {
override val nullabilityAnnotation = "Ljavax/annotation/Nonnull;"
constructor(name: String, field: Class<out Any?>) : this(field) {
this.name = name
}
override fun copy(name: String, field: Class<out Any?>) = NonNullableField(name, field)
override fun nullTest(mv: MethodVisitor, slot: Int) {
assert(name != unsetName)
if (!field.isPrimitive) {
with(mv) {
visitVarInsn(ALOAD, 0) // load this
visitVarInsn(ALOAD, slot) // load parameter
visitLdcInsn("param \"$name\" cannot be null")
visitMethodInsn(INVOKESTATIC,
"java/util/Objects",
"requireNonNull",
"(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;", false)
visitInsn(POP)
}
}
}
}
class NullableField(field: Class<out Any?>) : Field(field) {
override val nullabilityAnnotation = "Ljavax/annotation/Nullable;"
constructor(name: String, field: Class<out Any?>) : this(field) {
if (field.isPrimitive) {
throw NullablePrimitiveException (
"Field $name is primitive type ${Type.getDescriptor(field)} and thus cannot be nullable")
}
this.name = name
}
override fun copy(name: String, field: Class<out Any?>) = NullableField(name, field)
override fun nullTest(mv: MethodVisitor, slot: Int) {
assert(name != unsetName)
}
}
/**
* A Schema represents a desired class.
*/
open class Schema(val name: String, fields: Map<String, Class<out Any?>>, val superclass: Schema? = null, val interfaces: List<Class<*>> = emptyList()) {
val fields = LinkedHashMap(fields) // Fix the order up front if the user didn't.
val descriptors = fields.map { it.key to Type.getDescriptor(it.value) }.toMap()
abstract class Schema(
val name: String,
fields: Map<String, Field>,
val superclass: Schema? = null,
val interfaces: List<Class<*>> = emptyList())
{
private fun Map<String, ClassCarpenter.Field>.descriptors() =
LinkedHashMap(this.mapValues { it.value.descriptor })
fun fieldsIncludingSuperclasses(): Map<String, Class<out Any?>> = (superclass?.fieldsIncludingSuperclasses() ?: emptyMap()) + LinkedHashMap(fields)
fun descriptorsIncludingSuperclasses(): Map<String, String> = (superclass?.descriptorsIncludingSuperclasses() ?: emptyMap()) + LinkedHashMap(descriptors)
/* Fix the order up front if the user didn't, inject the name into the field as it's
neater when iterating */
val fields = LinkedHashMap(fields.mapValues { it.value.copy(it.key, it.value.field) })
fun fieldsIncludingSuperclasses(): Map<String, Field> =
(superclass?.fieldsIncludingSuperclasses() ?: emptyMap()) + LinkedHashMap(fields)
fun descriptorsIncludingSuperclasses(): Map<String, String> =
(superclass?.descriptorsIncludingSuperclasses() ?: emptyMap()) + fields.descriptors()
val jvmName: String
get() = name.replace(".", "/")
@ -86,21 +190,18 @@ class ClassCarpenter {
class ClassSchema(
name: String,
fields: Map<String, Class<out Any?>>,
fields: Map<String, Field>,
superclass: Schema? = null,
interfaces: List<Class<*>> = emptyList()
) : Schema(name, fields, superclass, interfaces)
class InterfaceSchema(
name: String,
fields: Map<String, Class<out Any?>>,
fields: Map<String, Field>,
superclass: Schema? = null,
interfaces: List<Class<*>> = emptyList()
) : Schema(name, fields, superclass, interfaces)
class DuplicateName : RuntimeException("An attempt was made to register two classes with the same name within the same ClassCarpenter namespace.")
class InterfaceMismatch(msg: String) : RuntimeException(msg)
private class CarpenterClassLoader : ClassLoader(Thread.currentThread().contextClassLoader) {
fun load(name: String, bytes: ByteArray) = defineClass(name, bytes, 0, bytes.size)
}
@ -140,8 +241,8 @@ class ClassCarpenter {
return _loaded[schema.name]!!
}
private fun generateInterface(schema: Schema): Class<*> {
return generate(schema) { cw, schema ->
private fun generateInterface(interfaceSchema: Schema): Class<*> {
return generate(interfaceSchema) { cw, schema ->
val interfaces = schema.interfaces.map { it.name.jvm }.toTypedArray()
with(cw) {
@ -154,8 +255,8 @@ class ClassCarpenter {
}
}
private fun generateClass(schema: Schema): Class<*> {
return generate(schema) { cw, schema ->
private fun generateClass(classSchema: Schema): Class<*> {
return generate(classSchema) { cw, schema ->
val superName = schema.superclass?.jvmName ?: "java/lang/Object"
val interfaces = arrayOf(SimpleFieldAccess::class.java.name.jvm) + schema.interfaces.map { it.name.jvm }
@ -186,9 +287,7 @@ class ClassCarpenter {
}
private fun ClassWriter.generateFields(schema: Schema) {
for ((name, desc) in schema.descriptors) {
visitField(ACC_PROTECTED + ACC_FINAL, name, desc, null, null).visitEnd()
}
schema.fields.forEach { it.value.generateField(this) }
}
private fun ClassWriter.generateToString(schema: Schema) {
@ -199,12 +298,11 @@ class ClassCarpenter {
visitLdcInsn(schema.name.split('.').last())
visitMethodInsn(INVOKESTATIC, "com/google/common/base/MoreObjects", "toStringHelper", "(Ljava/lang/String;)L$toStringHelper;", false)
// Call the add() methods.
for ((name, type) in schema.fieldsIncludingSuperclasses().entries) {
for ((name, field) in schema.fieldsIncludingSuperclasses().entries) {
visitLdcInsn(name)
visitVarInsn(ALOAD, 0) // this
visitFieldInsn(GETFIELD, schema.jvmName, name, schema.descriptorsIncludingSuperclasses()[name])
val desc = if (type.isPrimitive) schema.descriptors[name] else "Ljava/lang/Object;"
visitMethodInsn(INVOKEVIRTUAL, toStringHelper, "add", "(Ljava/lang/String;$desc)L$toStringHelper;", false)
visitMethodInsn(INVOKEVIRTUAL, toStringHelper, "add", "(Ljava/lang/String;${field.type})L$toStringHelper;", false)
}
// call toString() on the builder and return.
visitMethodInsn(INVOKEVIRTUAL, toStringHelper, "toString", "()Ljava/lang/String;", false)
@ -232,13 +330,14 @@ class ClassCarpenter {
private fun ClassWriter.generateGetters(schema: Schema) {
for ((name, type) in schema.fields) {
val descriptor = schema.descriptors[name]
with(visitMethod(ACC_PUBLIC, "get" + name.capitalize(), "()" + descriptor, null, null)) {
with(visitMethod(ACC_PUBLIC, "get" + name.capitalize(), "()" + type.descriptor, null, null)) {
type.addNullabilityAnnotation(this)
visitCode()
visitVarInsn(ALOAD, 0) // Load 'this'
visitFieldInsn(GETFIELD, schema.jvmName, name, descriptor)
when (type) {
java.lang.Boolean.TYPE, Integer.TYPE, java.lang.Short.TYPE, java.lang.Byte.TYPE, TYPE -> visitInsn(IRETURN)
visitFieldInsn(GETFIELD, schema.jvmName, name, type.descriptor)
when (type.field) {
java.lang.Boolean.TYPE, Integer.TYPE, java.lang.Short.TYPE, java.lang.Byte.TYPE,
java.lang.Character.TYPE -> visitInsn(IRETURN)
java.lang.Long.TYPE -> visitInsn(LRETURN)
java.lang.Double.TYPE -> visitInsn(DRETURN)
java.lang.Float.TYPE -> visitInsn(FRETURN)
@ -251,10 +350,9 @@ class ClassCarpenter {
}
private fun ClassWriter.generateAbstractGetters(schema: Schema) {
for ((name, _) in schema.fields) {
val descriptor = schema.descriptors[name]
for ((name, field) in schema.fields) {
val opcodes = ACC_ABSTRACT + ACC_PUBLIC
with(visitMethod(opcodes, "get" + name.capitalize(), "()" + descriptor, null, null)) {
with(visitMethod(opcodes, "get" + name.capitalize(), "()${field.descriptor}", null, null)) {
// abstract method doesn't have any implementation so just end
visitEnd()
}
@ -262,8 +360,18 @@ class ClassCarpenter {
}
private fun ClassWriter.generateConstructor(schema: Schema) {
with(visitMethod(ACC_PUBLIC, "<init>", "(" + schema.descriptorsIncludingSuperclasses().values.joinToString("") + ")V", null, null)) {
with(visitMethod(
ACC_PUBLIC,
"<init>",
"(" + schema.descriptorsIncludingSuperclasses().values.joinToString("") + ")V",
null,
null))
{
var idx = 0
schema.fields.values.forEach { it.visitParameter(this, idx++) }
visitCode()
// Calculate the super call.
val superclassFields = schema.superclass?.fieldsIncludingSuperclasses() ?: emptyMap()
visitVarInsn(ALOAD, 0)
@ -276,14 +384,15 @@ class ClassCarpenter {
val superDesc = schema.superclass.descriptorsIncludingSuperclasses().values.joinToString("")
visitMethodInsn(INVOKESPECIAL, schema.superclass.name.jvm, "<init>", "($superDesc)V", false)
}
// Assign the fields from parameters.
var slot = 1 + superclassFields.size
for ((name, type) in schema.fields.entries) {
if (type.isArray)
throw UnsupportedOperationException("Array types are not implemented yet")
for ((name, field) in schema.fields.entries) {
field.nullTest(this, slot)
visitVarInsn(ALOAD, 0) // Load 'this' onto the stack
slot += load(slot, type) // Load the contents of the parameter onto the stack.
visitFieldInsn(PUTFIELD, schema.jvmName, name, schema.descriptors[name])
slot += load(slot, field) // Load the contents of the parameter onto the stack.
visitFieldInsn(PUTFIELD, schema.jvmName, name, field.descriptor)
}
visitInsn(RETURN)
visitMaxs(0, 0)
@ -291,23 +400,23 @@ class ClassCarpenter {
}
}
// Returns how many slots the given type takes up.
private fun MethodVisitor.load(slot: Int, type: Class<out Any?>): Int {
when (type) {
java.lang.Boolean.TYPE, Integer.TYPE, java.lang.Short.TYPE, java.lang.Byte.TYPE, TYPE -> visitVarInsn(ILOAD, slot)
private fun MethodVisitor.load(slot: Int, type: Field): Int {
when (type.field) {
java.lang.Boolean.TYPE, Integer.TYPE, java.lang.Short.TYPE, java.lang.Byte.TYPE,
java.lang.Character.TYPE -> visitVarInsn(ILOAD, slot)
java.lang.Long.TYPE -> visitVarInsn(LLOAD, slot)
java.lang.Double.TYPE -> visitVarInsn(DLOAD, slot)
java.lang.Float.TYPE -> visitVarInsn(FLOAD, slot)
else -> visitVarInsn(ALOAD, slot)
}
return when (type) {
return when (type.field) {
java.lang.Long.TYPE, java.lang.Double.TYPE -> 2
else -> 1
}
}
private fun validateSchema(schema: Schema) {
if (schema.name in _loaded) throw DuplicateName()
if (schema.name in _loaded) throw DuplicateNameException()
fun isJavaName(n: String) = n.isNotBlank() && isJavaIdentifierStart(n.first()) && n.all(::isJavaIdentifierPart)
require(isJavaName(schema.name.split(".").last())) { "Not a valid Java name: ${schema.name}" }
schema.fields.keys.forEach { require(isJavaName(it)) { "Not a valid Java name: $it" } }
@ -319,11 +428,15 @@ class ClassCarpenter {
itf.methods.forEach {
val fieldNameFromItf = when {
it.name.startsWith("get") -> it.name.substring(3).decapitalize()
else -> throw InterfaceMismatch("Requested interfaces must consist only of methods that start with 'get': ${itf.name}.${it.name}")
else -> throw InterfaceMismatchException(
"Requested interfaces must consist only of methods that start "
+ "with 'get': ${itf.name}.${it.name}")
}
if ((schema is ClassSchema) and (fieldNameFromItf !in allFields))
throw InterfaceMismatch("Interface ${itf.name} requires a field named $fieldNameFromItf but that isn't found in the schema or any superclass schemas")
throw InterfaceMismatchException(
"Interface ${itf.name} requires a field named $fieldNameFromItf but that "
+ "isn't found in the schema or any superclass schemas")
}
}
}

View File

@ -1,9 +1,11 @@
package net.corda.carpenter
package net.corda.core.serialization.carpenter
import org.junit.Test
import java.lang.reflect.Field
import java.lang.reflect.Method
import kotlin.test.assertEquals
import kotlin.test.assertTrue
class ClassCarpenterTest {
@ -30,16 +32,19 @@ class ClassCarpenterTest {
@Test
fun prims() {
val clazz = cc.build(ClassCarpenter.ClassSchema("gen.Prims", mapOf(
"anIntField" to Int::class.javaPrimitiveType!!,
"aLongField" to Long::class.javaPrimitiveType!!,
"someCharField" to Char::class.javaPrimitiveType!!,
"aShortField" to Short::class.javaPrimitiveType!!,
"doubleTrouble" to Double::class.javaPrimitiveType!!,
"floatMyBoat" to Float::class.javaPrimitiveType!!,
"byteMe" to Byte::class.javaPrimitiveType!!,
"booleanField" to Boolean::class.javaPrimitiveType!!
)))
val clazz = cc.build(ClassCarpenter.ClassSchema(
"gen.Prims",
mapOf(
"anIntField" to Int::class.javaPrimitiveType!!,
"aLongField" to Long::class.javaPrimitiveType!!,
"someCharField" to Char::class.javaPrimitiveType!!,
"aShortField" to Short::class.javaPrimitiveType!!,
"doubleTrouble" to Double::class.javaPrimitiveType!!,
"floatMyBoat" to Float::class.javaPrimitiveType!!,
"byteMe" to Byte::class.javaPrimitiveType!!,
"booleanField" to Boolean::class.javaPrimitiveType!!).mapValues {
ClassCarpenter.NonNullableField (it.value)
}))
assertEquals(8, clazz.nonSyntheticFields.size)
assertEquals(10, clazz.nonSyntheticMethods.size)
assertEquals(8, clazz.declaredConstructors[0].parameterCount)
@ -68,7 +73,7 @@ class ClassCarpenterTest {
val clazz = cc.build(ClassCarpenter.ClassSchema("gen.Person", mapOf(
"age" to Int::class.javaPrimitiveType!!,
"name" to String::class.java
)))
).mapValues { ClassCarpenter.NonNullableField (it.value) } ))
val i = clazz.constructors[0].newInstance(32, "Mike")
return Pair(clazz, i)
}
@ -82,11 +87,11 @@ class ClassCarpenterTest {
@Test
fun `generated toString`() {
val (clazz, i) = genPerson()
val (_, i) = genPerson()
assertEquals("Person{age=32, name=Mike}", i.toString())
}
@Test(expected = ClassCarpenter.DuplicateName::class)
@Test(expected = ClassCarpenter.DuplicateNameException::class)
fun duplicates() {
cc.build(ClassCarpenter.ClassSchema("gen.EmptyClass", emptyMap(), null))
cc.build(ClassCarpenter.ClassSchema("gen.EmptyClass", emptyMap(), null))
@ -96,7 +101,7 @@ class ClassCarpenterTest {
fun `can refer to each other`() {
val (clazz1, i) = genPerson()
val clazz2 = cc.build(ClassCarpenter.ClassSchema("gen.Referee", mapOf(
"ref" to clazz1
"ref" to ClassCarpenter.NonNullableField (clazz1)
)))
val i2 = clazz2.constructors[0].newInstance(i)
assertEquals(i, (i2 as SimpleFieldAccess)["ref"])
@ -104,8 +109,15 @@ class ClassCarpenterTest {
@Test
fun superclasses() {
val schema1 = ClassCarpenter.ClassSchema("gen.A", mapOf("a" to String::class.java))
val schema2 = ClassCarpenter.ClassSchema("gen.B", mapOf("b" to String::class.java), schema1)
val schema1 = ClassCarpenter.ClassSchema(
"gen.A",
mapOf("a" to ClassCarpenter.NonNullableField (String::class.java)))
val schema2 = ClassCarpenter.ClassSchema(
"gen.B",
mapOf("b" to ClassCarpenter.NonNullableField (String::class.java)),
schema1)
val clazz = cc.build(schema2)
val i = clazz.constructors[0].newInstance("xa", "xb") as SimpleFieldAccess
assertEquals("xa", i["a"])
@ -115,18 +127,32 @@ class ClassCarpenterTest {
@Test
fun interfaces() {
val schema1 = ClassCarpenter.ClassSchema("gen.A", mapOf("a" to String::class.java))
val schema2 = ClassCarpenter.ClassSchema("gen.B", mapOf("b" to Int::class.java), schema1, interfaces = listOf(DummyInterface::class.java))
val schema1 = ClassCarpenter.ClassSchema(
"gen.A",
mapOf("a" to ClassCarpenter.NonNullableField(String::class.java)))
val schema2 = ClassCarpenter.ClassSchema("gen.B",
mapOf("b" to ClassCarpenter.NonNullableField(Int::class.java)),
schema1,
interfaces = listOf(DummyInterface::class.java))
val clazz = cc.build(schema2)
val i = clazz.constructors[0].newInstance("xa", 1) as DummyInterface
assertEquals("xa", i.a)
assertEquals(1, i.b)
}
@Test(expected = ClassCarpenter.InterfaceMismatch::class)
@Test(expected = ClassCarpenter.InterfaceMismatchException::class)
fun `mismatched interface`() {
val schema1 = ClassCarpenter.ClassSchema("gen.A", mapOf("a" to String::class.java))
val schema2 = ClassCarpenter.ClassSchema("gen.B", mapOf("c" to Int::class.java), schema1, interfaces = listOf(DummyInterface::class.java))
val schema1 = ClassCarpenter.ClassSchema(
"gen.A",
mapOf("a" to ClassCarpenter.NonNullableField(String::class.java)))
val schema2 = ClassCarpenter.ClassSchema(
"gen.B",
mapOf("c" to ClassCarpenter.NonNullableField(Int::class.java)),
schema1,
interfaces = listOf(DummyInterface::class.java))
val clazz = cc.build(schema2)
val i = clazz.constructors[0].newInstance("xa", 1) as DummyInterface
assertEquals(1, i.b)
@ -134,15 +160,22 @@ class ClassCarpenterTest {
@Test
fun `generate interface`() {
val schema1 = ClassCarpenter.InterfaceSchema("gen.Interface", mapOf("a" to Int::class.java))
val schema1 = ClassCarpenter.InterfaceSchema(
"gen.Interface",
mapOf("a" to ClassCarpenter.NonNullableField (Int::class.java)))
val iface = cc.build(schema1)
assert(iface.isInterface())
assert(iface.isInterface)
assert(iface.constructors.isEmpty())
assertEquals(iface.declaredMethods.size, 1)
assertEquals(iface.declaredMethods[0].name, "getA")
val schema2 = ClassCarpenter.ClassSchema("gen.Derived", mapOf("a" to Int::class.java), interfaces = listOf(iface))
val schema2 = ClassCarpenter.ClassSchema(
"gen.Derived",
mapOf("a" to ClassCarpenter.NonNullableField (Int::class.java)),
interfaces = listOf(iface))
val clazz = cc.build(schema2)
val testA = 42
val i = clazz.constructors[0].newInstance(testA) as SimpleFieldAccess
@ -152,16 +185,25 @@ class ClassCarpenterTest {
@Test
fun `generate multiple interfaces`() {
val iFace1 = ClassCarpenter.InterfaceSchema("gen.Interface1", mapOf("a" to Int::class.java, "b" to String::class.java))
val iFace2 = ClassCarpenter.InterfaceSchema("gen.Interface2", mapOf("c" to Int::class.java, "d" to String::class.java))
val iFace1 = ClassCarpenter.InterfaceSchema(
"gen.Interface1",
mapOf(
"a" to ClassCarpenter.NonNullableField(Int::class.java),
"b" to ClassCarpenter.NonNullableField(String::class.java)))
val iFace2 = ClassCarpenter.InterfaceSchema(
"gen.Interface2",
mapOf(
"c" to ClassCarpenter.NonNullableField(Int::class.java),
"d" to ClassCarpenter.NonNullableField(String::class.java)))
val class1 = ClassCarpenter.ClassSchema(
"gen.Derived",
mapOf(
"a" to Int::class.java,
"b" to String::class.java,
"c" to Int::class.java,
"d" to String::class.java),
"a" to ClassCarpenter.NonNullableField(Int::class.java),
"b" to ClassCarpenter.NonNullableField(String::class.java),
"c" to ClassCarpenter.NonNullableField(Int::class.java),
"d" to ClassCarpenter.NonNullableField(String::class.java)),
interfaces = listOf(cc.build(iFace1), cc.build(iFace2)))
val clazz = cc.build(class1)
@ -182,23 +224,23 @@ class ClassCarpenterTest {
val iFace1 = ClassCarpenter.InterfaceSchema(
"gen.Interface1",
mapOf(
"a" to Int::class.java,
"b" to String::class.java))
"a" to ClassCarpenter.NonNullableField (Int::class.java),
"b" to ClassCarpenter.NonNullableField(String::class.java)))
val iFace2 = ClassCarpenter.InterfaceSchema(
"gen.Interface2",
mapOf(
"c" to Int::class.java,
"d" to String::class.java),
"c" to ClassCarpenter.NonNullableField(Int::class.java),
"d" to ClassCarpenter.NonNullableField(String::class.java)),
interfaces = listOf(cc.build(iFace1)))
val class1 = ClassCarpenter.ClassSchema(
"gen.Derived",
mapOf(
"a" to Int::class.java,
"b" to String::class.java,
"c" to Int::class.java,
"d" to String::class.java),
"a" to ClassCarpenter.NonNullableField(Int::class.java),
"b" to ClassCarpenter.NonNullableField(String::class.java),
"c" to ClassCarpenter.NonNullableField(Int::class.java),
"d" to ClassCarpenter.NonNullableField(String::class.java)),
interfaces = listOf(cc.build(iFace2)))
val clazz = cc.build(class1)
@ -213,4 +255,240 @@ class ClassCarpenterTest {
assertEquals(testC, i["c"])
assertEquals(testD, i["d"])
}
@Test(expected = java.lang.IllegalArgumentException::class)
fun `null parameter small int`() {
val className = "iEnjoySwede"
val schema = ClassCarpenter.ClassSchema(
"gen.$className",
mapOf("a" to ClassCarpenter.NonNullableField (Int::class.java)))
val clazz = cc.build(schema)
val a : Int? = null
clazz.constructors[0].newInstance(a)
}
@Test(expected = ClassCarpenter.NullablePrimitiveException::class)
fun `nullable parameter small int`() {
val className = "iEnjoySwede"
val schema = ClassCarpenter.ClassSchema(
"gen.$className",
mapOf("a" to ClassCarpenter.NullableField (Int::class.java)))
cc.build(schema)
}
@Test
fun `nullable parameter integer`() {
val className = "iEnjoyWibble"
val schema = ClassCarpenter.ClassSchema(
"gen.$className",
mapOf("a" to ClassCarpenter.NullableField (Integer::class.java)))
val clazz = cc.build(schema)
val a1 : Int? = null
clazz.constructors[0].newInstance(a1)
val a2 : Int? = 10
clazz.constructors[0].newInstance(a2)
}
@Test
fun `non nullable parameter integer with non null`() {
val className = "iEnjoyWibble"
val schema = ClassCarpenter.ClassSchema(
"gen.$className",
mapOf("a" to ClassCarpenter.NonNullableField (Integer::class.java)))
val clazz = cc.build(schema)
val a : Int? = 10
clazz.constructors[0].newInstance(a)
}
@Test(expected = java.lang.reflect.InvocationTargetException::class)
fun `non nullable parameter integer with null`() {
val className = "iEnjoyWibble"
val schema = ClassCarpenter.ClassSchema(
"gen.$className",
mapOf("a" to ClassCarpenter.NonNullableField (Integer::class.java)))
val clazz = cc.build(schema)
val a : Int? = null
clazz.constructors[0].newInstance(a)
}
@Test
@Suppress("UNCHECKED_CAST")
fun `int array`() {
val className = "iEnjoyPotato"
val schema = ClassCarpenter.ClassSchema(
"gen.$className",
mapOf("a" to ClassCarpenter.NonNullableField(IntArray::class.java)))
val clazz = cc.build(schema)
val i = clazz.constructors[0].newInstance(intArrayOf(1, 2, 3)) as SimpleFieldAccess
val arr = clazz.getMethod("getA").invoke(i)
assertEquals(1, (arr as IntArray)[0])
assertEquals(2, arr[1])
assertEquals(3, arr[2])
assertEquals("$className{a=[1, 2, 3]}", i.toString())
}
@Test(expected = java.lang.reflect.InvocationTargetException::class)
fun `nullable int array throws`() {
val className = "iEnjoySwede"
val schema = ClassCarpenter.ClassSchema(
"gen.$className",
mapOf("a" to ClassCarpenter.NonNullableField(IntArray::class.java)))
val clazz = cc.build(schema)
val a : IntArray? = null
clazz.constructors[0].newInstance(a)
}
@Test
@Suppress("UNCHECKED_CAST")
fun `integer array`() {
val className = "iEnjoyFlan"
val schema = ClassCarpenter.ClassSchema(
"gen.$className",
mapOf("a" to ClassCarpenter.NonNullableField(Array<Int>::class.java)))
val clazz = cc.build(schema)
val i = clazz.constructors[0].newInstance(arrayOf(1, 2, 3)) as SimpleFieldAccess
val arr = clazz.getMethod("getA").invoke(i)
assertEquals(1, (arr as Array<Int>)[0])
assertEquals(2, arr[1])
assertEquals(3, arr[2])
assertEquals("$className{a=[1, 2, 3]}", i.toString())
}
@Test
@Suppress("UNCHECKED_CAST")
fun `int array with ints`() {
val className = "iEnjoyCrumble"
val schema = ClassCarpenter.ClassSchema(
"gen.$className", mapOf(
"a" to Int::class.java,
"b" to IntArray::class.java,
"c" to Int::class.java).mapValues { ClassCarpenter.NonNullableField(it.value) })
val clazz = cc.build(schema)
val i = clazz.constructors[0].newInstance(2, intArrayOf(4, 8), 16) as SimpleFieldAccess
assertEquals(2, clazz.getMethod("getA").invoke(i))
assertEquals(4, (clazz.getMethod("getB").invoke(i) as IntArray)[0])
assertEquals(8, (clazz.getMethod("getB").invoke(i) as IntArray)[1])
assertEquals(16, clazz.getMethod("getC").invoke(i))
assertEquals("$className{a=2, b=[4, 8], c=16}", i.toString())
}
@Test
@Suppress("UNCHECKED_CAST")
fun `multiple int arrays`() {
val className = "iEnjoyJam"
val schema = ClassCarpenter.ClassSchema(
"gen.$className", mapOf(
"a" to IntArray::class.java,
"b" to Int::class.java,
"c" to IntArray::class.java).mapValues { ClassCarpenter.NonNullableField(it.value) })
val clazz = cc.build(schema)
val i = clazz.constructors[0].newInstance(intArrayOf(1, 2), 3, intArrayOf(4, 5, 6))
assertEquals(1, (clazz.getMethod("getA").invoke(i) as IntArray)[0])
assertEquals(2, (clazz.getMethod("getA").invoke(i) as IntArray)[1])
assertEquals(3, clazz.getMethod("getB").invoke(i))
assertEquals(4, (clazz.getMethod("getC").invoke(i) as IntArray)[0])
assertEquals(5, (clazz.getMethod("getC").invoke(i) as IntArray)[1])
assertEquals(6, (clazz.getMethod("getC").invoke(i) as IntArray)[2])
assertEquals("$className{a=[1, 2], b=3, c=[4, 5, 6]}", i.toString())
}
@Test
@Suppress("UNCHECKED_CAST")
fun `string array`() {
val className = "iEnjoyToast"
val schema = ClassCarpenter.ClassSchema(
"gen.$className",
mapOf("a" to ClassCarpenter.NullableField(Array<String>::class.java)))
val clazz = cc.build(schema)
val i = clazz.constructors[0].newInstance(arrayOf("toast", "butter", "jam"))
val arr = clazz.getMethod("getA").invoke(i) as Array<String>
assertEquals("toast", arr[0])
assertEquals("butter", arr[1])
assertEquals("jam", arr[2])
}
@Test
@Suppress("UNCHECKED_CAST")
fun `string arrays`() {
val className = "iEnjoyToast"
val schema = ClassCarpenter.ClassSchema(
"gen.$className",
mapOf(
"a" to Array<String>::class.java,
"b" to String::class.java,
"c" to Array<String>::class.java).mapValues { ClassCarpenter.NullableField (it.value) })
val clazz = cc.build(schema)
val i = clazz.constructors[0].newInstance(
arrayOf("bread", "spread", "cheese"),
"and on the side",
arrayOf("some pickles", "some fries"))
val arr1 = clazz.getMethod("getA").invoke(i) as Array<String>
val arr2 = clazz.getMethod("getC").invoke(i) as Array<String>
assertEquals("bread", arr1[0])
assertEquals("spread", arr1[1])
assertEquals("cheese", arr1[2])
assertEquals("and on the side", clazz.getMethod("getB").invoke(i))
assertEquals("some pickles", arr2[0])
assertEquals("some fries", arr2[1])
}
@Test
fun `nullable sets annotations`() {
val className = "iEnjoyJam"
val schema = ClassCarpenter.ClassSchema(
"gen.$className",
mapOf("a" to ClassCarpenter.NullableField(String::class.java),
"b" to ClassCarpenter.NonNullableField(String::class.java)))
val clazz = cc.build(schema)
assertEquals (2, clazz.declaredFields.size)
assertEquals (1, clazz.getDeclaredField("a").annotations.size)
assertEquals (javax.annotation.Nullable::class.java, clazz.getDeclaredField("a").annotations[0].annotationClass.java)
assertEquals (1, clazz.getDeclaredField("b").annotations.size)
assertEquals (javax.annotation.Nonnull::class.java, clazz.getDeclaredField("b").annotations[0].annotationClass.java)
assertEquals (1, clazz.getMethod("getA").annotations.size)
assertEquals (javax.annotation.Nullable::class.java, clazz.getMethod("getA").annotations[0].annotationClass.java)
assertEquals (1, clazz.getMethod("getB").annotations.size)
assertEquals (javax.annotation.Nonnull::class.java, clazz.getMethod("getB").annotations[0].annotationClass.java)
}
}