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/**
* Copyright 2016 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.netflix.rewrite.ast
import com.fasterxml.jackson.annotation.*
import com.koloboke.collect.map.hash.HashObjObjMaps
import com.netflix.rewrite.ast.visitor.AstVisitor
import com.netflix.rewrite.ast.visitor.PrintVisitor
import com.netflix.rewrite.ast.visitor.RetrieveCursorVisitor
import com.netflix.rewrite.refactor.Refactor
import com.netflix.rewrite.search.*
import java.io.Serializable
import java.lang.IllegalArgumentException
import java.util.*
import java.util.concurrent.atomic.AtomicLong
import java.util.function.Consumer
import java.util.regex.Pattern
import kotlin.reflect.KClass
@JsonTypeInfo(use = JsonTypeInfo.Id.MINIMAL_CLASS, include = JsonTypeInfo.As.PROPERTY, property = "@c")
interface Tree {
val formatting: Formatting
/**
* An overload that allows us to create a copy of any Tree element, optionally
* changing formatting
*/
fun changeFormatting(fmt: Formatting = formatting): T
/**
* An id that can be used to identify a particular AST element, even after transformations have taken place on it
*/
val id: Long
fun accept(v: AstVisitor): R = v.default(null)
fun changeFormatting(): Tree = throw NotImplementedError()
fun printTrimmed() = print().trimIndent().trim()
fun print() = PrintVisitor().visit(this)
}
interface Statement : Tree
interface Expression : Tree {
val type: Type?
}
/**
* A tree representing a simple or fully qualified name
*/
interface NameTree : Tree {
val type: Type?
}
/**
* A tree identifying a type (e.g. a simple or fully qualified class name, a primitive, array, or parameterized type)
*/
interface TypeTree: NameTree
@JsonIdentityInfo(generator = ObjectIdGenerators.IntSequenceGenerator::class, property = "@ref")
sealed class Tr : Serializable, Tree {
companion object {
fun id(): Long = UUID.randomUUID().leastSignificantBits
}
data class Annotation(var annotationType: NameTree,
var args: Arguments?,
override val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Tr() {
override fun accept(v: AstVisitor): R =
v.reduce(v.visitAnnotation(this), v.visitExpression(this))
data class Arguments(val args: List, override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
}
data class ArrayAccess(val indexed: Expression,
val dimension: Dimension,
override val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Tr() {
override fun accept(v: AstVisitor): R =
v.reduce(v.visitArrayAccess(this), v.visitExpression(this))
data class Dimension(val index: Expression, override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
}
data class ArrayType(val elementType: TypeTree,
val dimensions: List,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): TypeTree, Expression, Tr() {
@Transient
override val type = elementType.type
override fun accept(v: AstVisitor): R = v.visitArrayType(this)
data class Dimension(val inner: Empty, override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
}
data class Assert(val condition: Expression,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitAssert(this)
}
data class Assign(val variable: Expression,
val assignment: Expression,
override val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Statement, Tr() {
override fun accept(v: AstVisitor): R =
v.reduce(v.visitAssign(this), v.visitExpression(this))
}
data class AssignOp(val variable: Expression,
val operator: Operator,
val assignment: Expression,
override val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Statement, Tr() {
override fun accept(v: AstVisitor): R =
v.reduce(v.visitAssignOp(this), v.visitExpression(this))
sealed class Operator: Tr() {
// Arithmetic
data class Addition(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class Subtraction(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class Multiplication(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class Division(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class Modulo(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
// Bitwise
data class BitAnd(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class BitOr(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class BitXor(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class LeftShift(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class RightShift(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class UnsignedRightShift(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
}
}
data class Binary(val left: Expression,
val operator: Operator,
val right: Expression,
override val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Tr() {
override fun accept(v: AstVisitor): R = v.reduce(v.visitBinary(this), v.visitExpression(this))
sealed class Operator: Tr() {
// Arithmetic
data class Addition(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class Subtraction(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class Multiplication(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class Division(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class Modulo(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
// Relational
data class LessThan(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class GreaterThan(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class LessThanOrEqual(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class GreaterThanOrEqual(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class Equal(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class NotEqual(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
// Bitwise
data class BitAnd(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class BitOr(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class BitXor(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class LeftShift(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class RightShift(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class UnsignedRightShift(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
// Boolean
data class Or(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
data class And(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Operator()
}
}
data class Block(val static: Tr.Empty?,
val statements: List,
override val formatting: Formatting = Formatting.Empty,
val endOfBlockSuffix: String,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitBlock(this)
}
data class Break(val label: Ident?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitBreak(this)
}
data class Case(val pattern: Expression?, // null for the default case
val statements: List,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitCase(this)
}
data class Catch(val param: Parentheses,
val body: Block,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Tr() {
override fun accept(v: AstVisitor): R = v.visitCatch(this)
}
data class ClassDecl(val annotations: List,
val modifiers: List,
val kind: Kind,
val name: Ident,
val typeParams: TypeParameters?,
val extends: TypeTree?,
val implements: List,
val body: Block,
val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitClassDecl(this)
/**
* Values will always occur before any fields, constructors, or methods
*/
fun enumValues(): EnumValueSet? = body.statements.find { it is EnumValueSet } as EnumValueSet?
fun fields(): List = body.statements.filterIsInstance()
fun methods(): List = body.statements.filterIsInstance()
sealed class Kind: Tr() {
data class Class(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Kind()
data class Enum(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Kind()
data class Interface(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Kind()
data class Annotation(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Kind()
}
/**
* Find fields defined on this class, but do not include inherited fields up the type hierarchy
*/
fun findFields(clazz: Class<*>): List = FindFields(clazz.name).visit(this)
fun findFields(clazz: String): List = FindFields(clazz).visit(this)
/**
* Find fields defined up the type hierarchy, but do not include fields defined directly on this class
*/
fun findInheritedFields(clazz: Class<*>): List = FindInheritedFields(clazz.name).visit(this)
fun findInheritedFields(clazz: String): List = FindInheritedFields(clazz).visit(this)
fun findMethodCalls(signature: String): List = FindMethods(signature).visit(this)
fun findType(clazz: Class<*>): List = FindType(clazz.name).visit(this)
fun findType(clazz: String): List = FindType(clazz).visit(this)
fun findAnnotations(signature: String): List = FindAnnotations(signature).visit(this)
fun hasType(clazz: Class<*>): Boolean = HasType(clazz.name).visit(this)
fun hasType(clazz: String): Boolean = HasType(clazz).visit(this)
fun hasModifier(modifier: Class) = modifiers.any { it::class.java == modifier }
fun hasModifier(modifier: String) = Modifier::class.nestedClasses
.filter { it.simpleName?.toLowerCase() == modifier.toLowerCase() }
.filterIsInstance>()
.filter { hasModifier(it.java) }
.any()
val isEnum: Boolean @JsonIgnore get() = kind is Kind.Enum
val isClass: Boolean @JsonIgnore get() = kind is Kind.Class
val isInterface: Boolean @JsonIgnore get() = kind is Kind.Interface
val isAnnotation: Boolean @JsonIgnore get() = kind is Kind.Annotation
@Transient val simpleName: String = name.simpleName
}
data class CompilationUnit(val sourcePath: String,
val packageDecl: Package?,
val imports: List,
val classes: List,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Tr() {
override fun accept(v: AstVisitor): R = v.visitCompilationUnit(this)
fun hasImport(clazz: Class<*>): Boolean = HasImport(clazz.name).visit(this)
fun hasImport(clazz: String): Boolean = HasImport(clazz).visit(this)
fun hasType(clazz: Class<*>): Boolean = HasType(clazz.name).visit(this)
fun hasType(clazz: String): Boolean = HasType(clazz).visit(this)
fun findMethodCalls(signature: String): List = FindMethods(signature).visit(this)
fun findType(clazz: Class<*>): List = FindType(clazz.name).visit(this)
fun findType(clazz: String): List = FindType(clazz).visit(this)
fun refactor() = Refactor(this)
fun refactor(ops: Refactor.() -> Unit): Refactor {
val r = refactor()
ops(r)
return r
}
fun refactor(ops: Consumer): Refactor {
val r = refactor()
ops.accept(r)
return r
}
fun firstClass() = classes.firstOrNull()
fun cursor(t: Tree?): Cursor? = RetrieveCursorVisitor(t).visit(this)
fun cursor(id: Long): Cursor? = RetrieveCursorVisitor(id).visit(this)
/**
* Because Jackson will not place a polymorphic type tag on the root of the AST when we are serializing a list of ASTs together
*/
@Suppress("ProtectedInFinal")
@get:JsonProperty("@c")
protected val jacksonPolymorphicTypeTag = ".Tr\$CompilationUnit"
}
data class Continue(val label: Ident?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitContinue(this)
}
data class DoWhileLoop(val body: Statement,
val condition: Parentheses,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitDoWhileLoop(this)
}
data class Empty(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Statement, Expression, TypeTree, NameTree, Tr() {
override val type: Type? = null
override fun accept(v: AstVisitor): R = v.reduce(v.visitEmpty(this), v.visitExpression(this))
}
data class EnumValue(val name: Ident,
val initializer: Arguments?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitEnumValue(this)
data class Arguments(val args: List, override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Tr()
@Transient val simpleName: String = name.simpleName
}
data class EnumValueSet(val enums: List,
val terminatedWithSemicolon: Boolean,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitEnumValueSet(this)
}
data class FieldAccess(val target: Expression,
val name: Ident,
override val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, NameTree, TypeTree, Tr() {
override fun accept(v: AstVisitor): R = v.reduce(v.visitFieldAccess(this), v.visitExpression(this))
/**
* Make debugging a bit easier
*/
override fun toString(): String = "FieldAccess(${printTrimmed()})"
@Transient val simpleName: String = name.simpleName
/**
* @return For expressions like String.class, this casts target expression to a `NameTree`.
* If the field access is not * a reference to a class type, returns null.
*/
fun asClassReference(): NameTree? = when(target) {
is NameTree -> {
val fqn = when (type) {
is Type.Class -> type.fullyQualifiedName
is Type.ShallowClass -> type.fullyQualifiedName
else -> null
}
if(fqn == "java.lang.Class") target else null
}
else -> null
}
}
data class ForEachLoop(val control: Control,
val body: Statement,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitForEachLoop(this)
data class Control(val variable: VariableDecls,
val iterable: Expression,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
}
data class ForLoop(val control: Control,
val body: Statement,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitForLoop(this)
data class Control(val init: Statement, // either Tr.Empty, Tr.VariableDecls, or Tr.Assign
val condition: Expression,
val update: List,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
}
data class Ident private constructor(private val ident: IdentFlyweight,
override val formatting: Formatting,
override val id: Long) : Expression, NameTree, TypeTree, Tr() {
override val type: Type? get() = ident.type
val simpleName: String get() = ident.simpleName
fun copy(simpleName: String = this.simpleName, type: Type? = this.type, formatting: Formatting = this.formatting, id: Long = this.id) =
copy(ident.copy(simpleName, type), formatting, id)
companion object {
private val flyweights = HashObjObjMaps.newMutableMap>()
@JvmStatic @JsonCreator
fun build(simpleName: String, type: Type? = null, formatting: Formatting = Formatting.Empty, id: Long = id()): Ident {
val fly = synchronized(flyweights) {
flyweights
.getOrPut(simpleName, { HashObjObjMaps.newMutableMap(mapOf(type to IdentFlyweight(simpleName, type))) })
.getOrPut(type, { IdentFlyweight(simpleName, type) })
}
return Ident(fly, formatting, id)
}
}
private data class IdentFlyweight(val simpleName: String, val type: Type?): Serializable
override fun accept(v: AstVisitor): R = v.reduce(v.visitIdentifier(this), v.visitExpression(this))
/**
* Make debugging a bit easier
*/
override fun toString(): String = "Ident(${printTrimmed()})"
}
data class If(val ifCondition: Parentheses,
val thenPart: Statement,
val elsePart: Else?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitIf(this)
data class Else(val statement: Statement,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
}
data class Import(val qualid: FieldAccess,
val static: Boolean,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Tr() {
override fun accept(v: AstVisitor): R = v.visitImport(this)
fun matches(clazz: String): Boolean = when (qualid.simpleName) {
"*" -> qualid.target.printTrimmed() == clazz.split('.').takeWhile { it[0].isLowerCase() }.joinToString(".")
else -> qualid.printTrimmed() == clazz
}
}
data class InstanceOf(val expr: Expression,
val clazz: Tree,
override val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Tr() {
override fun accept(v: AstVisitor): R = v.reduce(v.visitInstanceOf(this), v.visitExpression(this))
}
data class Label(val label: Ident,
val statement: Statement,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitLabel(this)
}
data class Lambda(val paramSet: Parameters,
val arrow: Arrow,
val body: Tree,
override val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Tr() {
override fun accept(v: AstVisitor): R = v.reduce(v.visitLambda(this), v.visitExpression(this))
data class Arrow(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Tr()
data class Parameters(val parenthesized: Boolean,
val params: List, // Tr.VariableDecls or Tr.Empty
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
}
data class Literal(val value: Any?,
val valueSource: String,
override val type: Type.Primitive, // Strings are included
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Tr() {
override fun accept(v: AstVisitor): R = v.reduce(v.visitLiteral(this), v.visitExpression(this))
/**
* Primitive values sometimes contain a prefix and suffix that hold the special characters,
* e.g. the "" around String, the L at the end of a long, etc.
*/
fun transformValue(transform: (T) -> Any): String {
val valueMatcher = "(.*)${Pattern.quote(value.toString())}(.*)".toRegex().find(this.printTrimmed().replace("\\", ""))
@Suppress("UNREACHABLE_CODE")
return when (valueMatcher) {
is MatchResult -> {
val (prefix, suffix) = valueMatcher.groupValues.drop(1)
@Suppress("UNCHECKED_CAST")
return "$prefix${transform(value as T)}$suffix"
}
else -> error("Encountered a literal `$this` that could not be transformed")
}
}
}
data class MemberReference(val containing: Expression,
val reference: Ident,
override val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Expression, Tr() {
override fun accept(v: AstVisitor): R = v.visitMemberReference(this)
}
data class MethodDecl(val annotations: List,
val modifiers: List,
val typeParameters: TypeParameters?,
val returnTypeExpr: TypeTree?, // null for constructors
val name: Ident,
val params: Parameters,
val throws: Throws?,
val body: Block?,
val defaultValue: Default?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Tr() {
override fun accept(v: AstVisitor): R = v.visitMethod(this)
fun hasType(clazz: Class<*>): Boolean = HasType(clazz.name).visit(this)
fun hasType(clazz: String): Boolean = HasType(clazz).visit(this)
data class Parameters(val params: List, override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
data class Throws(val exceptions: List,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
data class Default(val value: Expression,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
fun hasModifier(modifier: Class) = modifiers.any { it::class.java == modifier }
fun hasModifier(modifier: String) = Modifier::class.nestedClasses
.filter { it.simpleName?.toLowerCase() == modifier.toLowerCase() }
.filterIsInstance>()
.filter { hasModifier(it.java) }
.any()
fun findAnnotations(signature: String): List = FindAnnotations(signature).visit(this)
@Transient val simpleName: String = name.simpleName
}
data class MethodInvocation(val select: Expression?,
val typeParameters: TypeParameters?,
val name: Ident,
val args: Arguments,
override val type: Type.Method?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Statement, Tr() {
override fun accept(v: AstVisitor): R =
v.reduce(v.visitMethodInvocation(this), v.visitExpression(this))
fun returnType(): Type? = type?.resolvedSignature?.returnType
fun firstMethodInChain(): MethodInvocation =
(select as? MethodInvocation)?.firstMethodInChain() ?: this
fun argExpressions() = args.args.filter { it !is Tr.Empty }
data class Arguments(val args: List, override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Tr()
data class TypeParameters(val params: List, override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Tr()
@Transient val simpleName: String = name.simpleName
}
@JsonTypeInfo(use = JsonTypeInfo.Id.MINIMAL_CLASS, include = JsonTypeInfo.As.PROPERTY, property = "@c")
sealed class Modifier : Tr() {
data class Default(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Modifier()
data class Public(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Modifier()
data class Protected(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Modifier()
data class Private(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Modifier()
data class Abstract(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Modifier()
data class Static(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Modifier()
data class Final(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Modifier()
data class Native(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Modifier()
data class Strictfp(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Modifier()
data class Synchronized(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Modifier()
data class Transient(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Modifier()
data class Volatile(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Modifier()
}
data class MultiCatch(val alternatives: List,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): TypeTree, Tr() {
@get:JsonIgnore
override val type: Type by lazy { Type.MultiCatchType(alternatives.map { it.type }.filterNotNull()) }
override fun accept(v: AstVisitor): R = v.visitMultiCatch(this)
}
data class NewArray(val typeExpr: TypeTree?, // null in the case of an array as an annotation parameter
val dimensions: List,
val initializer: Initializer?,
override val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Tr() {
override fun accept(v: AstVisitor): R =
v.reduce(v.visitNewArray(this), v.visitExpression(this))
data class Dimension(val size: Expression, override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
data class Initializer(val elements: List, override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
}
data class NewClass(val clazz: TypeTree,
val args: Arguments,
val classBody: Block?, // non-null for anonymous classes
override val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Statement, Tr() {
override fun accept(v: AstVisitor): R =
v.reduce(v.visitNewClass(this), v.visitExpression(this))
data class Arguments(val args: List, override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
}
data class Package(val expr: Expression, override val formatting: Formatting = Formatting.Empty, override val id: Long = id()) : Tr() {
override fun accept(v: AstVisitor): R = v.visitPackage(this)
}
data class ParameterizedType(val clazz: NameTree,
val typeArguments: TypeArguments?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): TypeTree, Expression, Tr() {
@Transient override val type = clazz.type
override fun accept(v: AstVisitor): R = v.visitParameterizedType(this)
data class TypeArguments(val args: List, /* TypeTree or Wildcard */
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
}
data class Parentheses(val tree: T,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Tr() {
@Transient
override val type = when(tree) {
is Expression -> tree.type
else -> null
}
override fun accept(v: AstVisitor): R =
v.reduce(v.visitParentheses(this), v.visitExpression(this))
}
data class Primitive(override val type: Type.Primitive,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, NameTree, TypeTree, Tr() {
override fun accept(v: AstVisitor): R =
v.reduce(v.visitPrimitive(this), v.visitExpression(this))
}
data class Return(val expr: Expression?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitReturn(this)
}
data class Switch(val selector: Parentheses,
val cases: Block,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitSwitch(this)
}
data class Synchronized(val lock: Parentheses,
val body: Block,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitSynchronized(this)
}
data class Ternary(val condition: Expression,
val truePart: Expression,
val falsePart: Expression,
override val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Tr() {
override fun accept(v: AstVisitor): R =
v.reduce(v.visitTernary(this), v.visitExpression(this))
}
data class Throw(val exception: Expression,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitThrow(this)
}
data class Try(val resources: Resources?,
val body: Block,
val catches: List,
val finally: Finally?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitTry(this)
data class Resources(val decls: List, override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
data class Finally(val block: Block, override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
}
data class TypeCast(val clazz: Parentheses,
val expr: Expression,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Expression, Tr() {
@Transient
override val type = clazz.type
override fun accept(v: AstVisitor): R = v.reduce(v.visitTypeCast(this), v.visitExpression(this))
}
data class TypeParameter(val annotations: List,
val name: NameTree,
val bounds: Bounds?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Tr() {
override fun accept(v: AstVisitor): R = v.visitTypeParameter(this)
data class Bounds(val types: List,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Tr()
}
data class TypeParameters(val params: List,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr() {
override fun accept(v: AstVisitor): R = v.visitTypeParameters(this)
}
/**
* Increment and decrement operations are valid statements, other operations are not
*/
data class Unary(val operator: Operator,
val expr: Expression,
override val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Expression, Statement, Tr() {
override fun accept(v: AstVisitor): R = v.reduce(v.visitUnary(this), v.visitExpression(this))
sealed class Operator: Tr() {
// only PostIncrement and PostDecrement may have non-empty formatting
override val formatting: Formatting = Formatting.Empty
// Arithmetic
data class PreIncrement(override val id: Long = id()): Operator()
data class PreDecrement(override val id: Long = id()): Operator()
data class PostIncrement(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Operator()
data class PostDecrement(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Operator()
data class Positive(override val id: Long = id()): Operator()
data class Negative(override val id: Long = id()): Operator()
// Bitwise
data class Complement(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Operator()
// Boolean
data class Not(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Operator()
}
}
data class UnparsedSource(val source: String, override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Expression, Statement, Tr() {
@Transient
override val type: Type? = null
override fun accept(v: AstVisitor): R =
v.reduce(v.visitUnparsedSource(this), v.visitExpression(this))
}
data class VariableDecls(
val annotations: List,
val modifiers: List,
val typeExpr: TypeTree?, // can be null when this is a lambda parameter with an inferred type expression
val varArgs: Varargs?,
val dimensionsBeforeName: List,
val vars: List,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitMultiVariable(this)
data class Varargs(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Tr()
data class Dimension(val whitespace: Tr.Empty, override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr()
data class NamedVar(val name: Ident,
val dimensionsAfterName: List, // thanks for making it hard, Java
val initializer: Expression?,
val type: Type?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr() {
override fun accept(v: AstVisitor): R = v.visitVariable(this)
@Transient val simpleName: String = name.simpleName
}
fun hasModifier(modifier: Class) = modifiers.any { it::class.java == modifier }
fun hasModifier(modifier: String) = Modifier::class.nestedClasses
.filter { it.simpleName?.toLowerCase() == modifier.toLowerCase() }
.filterIsInstance>()
.filter { hasModifier(it.java) }
.any()
fun findAnnotations(signature: String): List = FindAnnotations(signature).visit(this)
}
data class WhileLoop(val condition: Parentheses,
val body: Statement,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()) : Statement, Tr() {
override fun accept(v: AstVisitor): R = v.visitWhileLoop(this)
}
data class Wildcard(val bound: Bound?,
val boundedType: NameTree?,
override val formatting: Formatting = Formatting.Empty,
override val id: Long = id()): Tr(), Expression {
@Transient
override val type = null
override fun accept(v: AstVisitor): R = v.visitWildcard(this)
sealed class Bound: Tr() {
data class Super(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Bound()
data class Extends(override val formatting: Formatting = Formatting.Empty, override val id: Long = id()): Bound()
}
}
/**
* An overload that allows us to create a copy of any Tree element, optionally
* changing formatting
*/
override fun changeFormatting(fmt: Formatting): T {
@Suppress("UNCHECKED_CAST")
return when(this) {
is Tr.Annotation -> copy(formatting = fmt)
is Tr.Annotation.Arguments -> copy(formatting = fmt)
is Tr.ArrayAccess -> copy(formatting = fmt)
is Tr.ArrayAccess.Dimension -> copy(formatting = fmt)
is Tr.ArrayType -> copy(formatting = fmt)
is Tr.ArrayType.Dimension -> copy(formatting = fmt)
is Tr.Assert -> copy(formatting = fmt)
is Tr.Assign -> copy(formatting = fmt)
is Tr.AssignOp -> copy(formatting = fmt)
is Tr.AssignOp.Operator -> when(this) {
is Tr.AssignOp.Operator.Addition -> copy(formatting = fmt)
is Tr.AssignOp.Operator.Subtraction -> copy(formatting = fmt)
is Tr.AssignOp.Operator.Multiplication -> copy(formatting = fmt)
is Tr.AssignOp.Operator.Division -> copy(formatting = fmt)
is Tr.AssignOp.Operator.Modulo -> copy(formatting = fmt)
is Tr.AssignOp.Operator.BitAnd -> copy(formatting = fmt)
is Tr.AssignOp.Operator.BitOr -> copy(formatting = fmt)
is Tr.AssignOp.Operator.BitXor -> copy(formatting = fmt)
is Tr.AssignOp.Operator.LeftShift -> copy(formatting = fmt)
is Tr.AssignOp.Operator.RightShift -> copy(formatting = fmt)
is Tr.AssignOp.Operator.UnsignedRightShift -> copy(formatting = fmt)
}
is Tr.Binary -> copy(formatting = fmt)
is Tr.Binary.Operator -> when(this) {
is Tr.Binary.Operator.Addition -> copy(formatting = fmt)
is Tr.Binary.Operator.Subtraction -> copy(formatting = fmt)
is Tr.Binary.Operator.Multiplication -> copy(formatting = fmt)
is Tr.Binary.Operator.Division -> copy(formatting = fmt)
is Tr.Binary.Operator.Modulo -> copy(formatting = fmt)
is Tr.Binary.Operator.LessThan -> copy(formatting = fmt)
is Tr.Binary.Operator.GreaterThan -> copy(formatting = fmt)
is Tr.Binary.Operator.LessThanOrEqual -> copy(formatting = fmt)
is Tr.Binary.Operator.GreaterThanOrEqual -> copy(formatting = fmt)
is Tr.Binary.Operator.Equal -> copy(formatting = fmt)
is Tr.Binary.Operator.NotEqual -> copy(formatting = fmt)
is Tr.Binary.Operator.BitAnd -> copy(formatting = fmt)
is Tr.Binary.Operator.BitOr -> copy(formatting = fmt)
is Tr.Binary.Operator.BitXor -> copy(formatting = fmt)
is Tr.Binary.Operator.LeftShift -> copy(formatting = fmt)
is Tr.Binary.Operator.RightShift -> copy(formatting = fmt)
is Tr.Binary.Operator.UnsignedRightShift -> copy(formatting = fmt)
is Tr.Binary.Operator.Or -> copy(formatting = fmt)
is Tr.Binary.Operator.And -> copy(formatting = fmt)
}
is Tr.Block<*> -> copy(formatting = fmt)
is Tr.Break -> copy(formatting = fmt)
is Tr.Case -> copy(formatting = fmt)
is Tr.Catch -> copy(formatting = fmt)
is Tr.ClassDecl -> copy(formatting = fmt)
is Tr.ClassDecl.Kind -> when(this) {
is Tr.ClassDecl.Kind.Class -> copy(formatting = fmt)
is Tr.ClassDecl.Kind.Enum -> copy(formatting = fmt)
is Tr.ClassDecl.Kind.Interface -> copy(formatting = fmt)
is Tr.ClassDecl.Kind.Annotation -> copy(formatting = fmt)
}
is Tr.CompilationUnit -> copy(formatting = fmt)
is Tr.Continue -> copy(formatting = fmt)
is Tr.DoWhileLoop -> copy(formatting = fmt)
is Tr.Empty -> copy(formatting = fmt)
is Tr.EnumValue -> copy(formatting = fmt)
is Tr.EnumValue.Arguments -> copy(formatting = fmt)
is Tr.EnumValueSet -> copy(formatting = fmt)
is Tr.FieldAccess -> copy(formatting = fmt)
is Tr.ForEachLoop -> copy(formatting = fmt)
is Tr.ForEachLoop.Control -> copy(formatting = fmt)
is Tr.ForLoop -> copy(formatting = fmt)
is Tr.ForLoop.Control -> copy(formatting = fmt)
is Tr.Ident -> copy(formatting = fmt)
is Tr.If -> copy(formatting = fmt)
is Tr.If.Else -> copy(formatting = fmt)
is Tr.Import -> copy(formatting = fmt)
is Tr.InstanceOf -> copy(formatting = fmt)
is Tr.Label -> copy(formatting = fmt)
is Tr.Lambda -> copy(formatting = fmt)
is Tr.Lambda.Parameters -> copy(formatting = fmt)
is Tr.Lambda.Arrow -> copy(formatting = fmt)
is Tr.Literal -> copy(formatting = fmt)
is Tr.MemberReference -> copy(formatting = fmt)
is Tr.MethodDecl -> copy(formatting = fmt)
is Tr.MethodDecl.Default -> copy(formatting = fmt)
is Tr.MethodDecl.Parameters -> copy(formatting = fmt)
is Tr.MethodDecl.Throws -> copy(formatting = fmt)
is Tr.MethodInvocation -> copy(formatting = fmt)
is Tr.MethodInvocation.Arguments -> copy(formatting = fmt)
is Tr.MethodInvocation.TypeParameters -> copy(formatting = fmt)
is Tr.MultiCatch -> copy(formatting = fmt)
is Tr.NewArray -> copy(formatting = fmt)
is Tr.NewArray.Dimension -> copy(formatting = fmt)
is Tr.NewArray.Initializer -> copy(formatting = fmt)
is Tr.NewClass -> copy(formatting = fmt)
is Tr.NewClass.Arguments -> copy(formatting = fmt)
is Tr.Package -> copy(formatting = fmt)
is Tr.ParameterizedType -> copy(formatting = fmt)
is Tr.ParameterizedType.TypeArguments -> copy(formatting = fmt)
is Tr.Parentheses<*> -> copy(formatting = fmt)
is Tr.Primitive -> copy(formatting = fmt)
is Tr.Return -> copy(formatting = fmt)
is Tr.Switch -> copy(formatting = fmt)
is Tr.Synchronized -> copy(formatting = fmt)
is Tr.Ternary -> copy(formatting = fmt)
is Tr.Throw -> copy(formatting = fmt)
is Tr.Try -> copy(formatting = fmt)
is Tr.Try.Resources -> copy(formatting = fmt)
is Tr.Try.Finally -> copy(formatting = fmt)
is Tr.TypeCast -> copy(formatting = fmt)
is Tr.TypeParameter -> copy(formatting = fmt)
is Tr.TypeParameter.Bounds -> copy(formatting = fmt)
is Tr.TypeParameters -> copy(formatting = fmt)
is Tr.Unary -> copy(formatting = fmt)
is Tr.Unary.Operator -> when(this) {
is Tr.Unary.Operator.PreIncrement -> copy() // do nothing
is Tr.Unary.Operator.PreDecrement -> copy() // do nothing
is Tr.Unary.Operator.PostIncrement -> copy(formatting = fmt)
is Tr.Unary.Operator.PostDecrement -> copy(formatting = fmt)
is Tr.Unary.Operator.Positive -> copy() // do nothing
is Tr.Unary.Operator.Negative -> copy() // do nothing
is Tr.Unary.Operator.Complement -> copy(formatting = fmt)
is Tr.Unary.Operator.Not -> copy(formatting = fmt)
}
is Tr.UnparsedSource -> copy(formatting = fmt)
is Tr.VariableDecls -> copy(formatting = fmt)
is Tr.Modifier -> when(this) {
is Tr.Modifier.Abstract -> copy(formatting = fmt)
is Tr.Modifier.Default -> copy(formatting = fmt)
is Tr.Modifier.Final -> copy(formatting = fmt)
is Tr.Modifier.Native -> copy(formatting = fmt)
is Tr.Modifier.Private -> copy(formatting = fmt)
is Tr.Modifier.Protected -> copy(formatting = fmt)
is Tr.Modifier.Public -> copy(formatting = fmt)
is Tr.Modifier.Static -> copy(formatting = fmt)
is Tr.Modifier.Strictfp -> copy(formatting = fmt)
is Tr.Modifier.Synchronized -> copy(formatting = fmt)
is Tr.Modifier.Transient -> copy(formatting = fmt)
is Tr.Modifier.Volatile -> copy(formatting = fmt)
}
is Tr.VariableDecls.Varargs -> copy(formatting = fmt)
is Tr.VariableDecls.Dimension -> copy(formatting = fmt)
is Tr.VariableDecls.NamedVar -> copy(formatting = fmt)
is Tr.WhileLoop -> copy(formatting = fmt)
is Tr.Wildcard -> copy(formatting = fmt)
is Tr.Wildcard.Bound -> when(this) {
is Tr.Wildcard.Bound.Super -> copy(formatting = fmt)
is Tr.Wildcard.Bound.Extends -> copy(formatting = fmt)
}
} as T
}
}
