JDK 11 jdk.compiler.jmod - Compiler Tool
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⏎ com/sun/tools/javac/tree/TreeMaker.java
/*
* Copyright (c) 1999, 2018, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package com.sun.tools.javac.tree;
import java.util.Iterator;
import com.sun.source.tree.ModuleTree.ModuleKind;
import com.sun.source.tree.Tree.Kind;
import com.sun.tools.javac.code.*;
import com.sun.tools.javac.code.Attribute.UnresolvedClass;
import com.sun.tools.javac.code.Symbol.*;
import com.sun.tools.javac.code.Type.*;
import com.sun.tools.javac.util.*;
import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition;
import com.sun.tools.javac.tree.JCTree.*;
import static com.sun.tools.javac.code.Flags.*;
import static com.sun.tools.javac.code.Kinds.Kind.*;
import static com.sun.tools.javac.code.TypeTag.*;
/** Factory class for trees.
*
* <p><b>This is NOT part of any supported API.
* If you write code that depends on this, you do so at your own risk.
* This code and its internal interfaces are subject to change or
* deletion without notice.</b>
*/
public class TreeMaker implements JCTree.Factory {
/** The context key for the tree factory. */
protected static final Context.Key<TreeMaker> treeMakerKey = new Context.Key<>();
/** Get the TreeMaker instance. */
public static TreeMaker instance(Context context) {
TreeMaker instance = context.get(treeMakerKey);
if (instance == null)
instance = new TreeMaker(context);
return instance;
}
/** The position at which subsequent trees will be created.
*/
public int pos = Position.NOPOS;
/** The toplevel tree to which created trees belong.
*/
public JCCompilationUnit toplevel;
/** The current name table. */
Names names;
Types types;
/** The current symbol table. */
Symtab syms;
/** Create a tree maker with null toplevel and NOPOS as initial position.
*/
protected TreeMaker(Context context) {
context.put(treeMakerKey, this);
this.pos = Position.NOPOS;
this.toplevel = null;
this.names = Names.instance(context);
this.syms = Symtab.instance(context);
this.types = Types.instance(context);
}
/** Create a tree maker with a given toplevel and FIRSTPOS as initial position.
*/
protected TreeMaker(JCCompilationUnit toplevel, Names names, Types types, Symtab syms) {
this.pos = Position.FIRSTPOS;
this.toplevel = toplevel;
this.names = names;
this.types = types;
this.syms = syms;
}
/** Create a new tree maker for a given toplevel.
*/
public TreeMaker forToplevel(JCCompilationUnit toplevel) {
return new TreeMaker(toplevel, names, types, syms);
}
/** Reassign current position.
*/
public TreeMaker at(int pos) {
this.pos = pos;
return this;
}
/** Reassign current position.
*/
public TreeMaker at(DiagnosticPosition pos) {
this.pos = (pos == null ? Position.NOPOS : pos.getStartPosition());
return this;
}
/**
* Create given tree node at current position.
* @param defs a list of PackageDef, ClassDef, Import, and Skip
*/
public JCCompilationUnit TopLevel(List<JCTree> defs) {
for (JCTree node : defs)
Assert.check(node instanceof JCClassDecl
|| node instanceof JCPackageDecl
|| node instanceof JCImport
|| node instanceof JCModuleDecl
|| node instanceof JCSkip
|| node instanceof JCErroneous
|| (node instanceof JCExpressionStatement
&& ((JCExpressionStatement)node).expr instanceof JCErroneous),
() -> node.getClass().getSimpleName());
JCCompilationUnit tree = new JCCompilationUnit(defs);
tree.pos = pos;
return tree;
}
public JCPackageDecl PackageDecl(List<JCAnnotation> annotations,
JCExpression pid) {
Assert.checkNonNull(annotations);
Assert.checkNonNull(pid);
JCPackageDecl tree = new JCPackageDecl(annotations, pid);
tree.pos = pos;
return tree;
}
public JCImport Import(JCTree qualid, boolean importStatic) {
JCImport tree = new JCImport(qualid, importStatic);
tree.pos = pos;
return tree;
}
public JCClassDecl ClassDef(JCModifiers mods,
Name name,
List<JCTypeParameter> typarams,
JCExpression extending,
List<JCExpression> implementing,
List<JCTree> defs)
{
JCClassDecl tree = new JCClassDecl(mods,
name,
typarams,
extending,
implementing,
defs,
null);
tree.pos = pos;
return tree;
}
public JCMethodDecl MethodDef(JCModifiers mods,
Name name,
JCExpression restype,
List<JCTypeParameter> typarams,
List<JCVariableDecl> params,
List<JCExpression> thrown,
JCBlock body,
JCExpression defaultValue) {
return MethodDef(
mods, name, restype, typarams, null, params,
thrown, body, defaultValue);
}
public JCMethodDecl MethodDef(JCModifiers mods,
Name name,
JCExpression restype,
List<JCTypeParameter> typarams,
JCVariableDecl recvparam,
List<JCVariableDecl> params,
List<JCExpression> thrown,
JCBlock body,
JCExpression defaultValue)
{
JCMethodDecl tree = new JCMethodDecl(mods,
name,
restype,
typarams,
recvparam,
params,
thrown,
body,
defaultValue,
null);
tree.pos = pos;
return tree;
}
public JCVariableDecl VarDef(JCModifiers mods, Name name, JCExpression vartype, JCExpression init) {
JCVariableDecl tree = new JCVariableDecl(mods, name, vartype, init, null);
tree.pos = pos;
return tree;
}
public JCVariableDecl ReceiverVarDef(JCModifiers mods, JCExpression name, JCExpression vartype) {
JCVariableDecl tree = new JCVariableDecl(mods, name, vartype);
tree.pos = pos;
return tree;
}
public JCSkip Skip() {
JCSkip tree = new JCSkip();
tree.pos = pos;
return tree;
}
public JCBlock Block(long flags, List<JCStatement> stats) {
JCBlock tree = new JCBlock(flags, stats);
tree.pos = pos;
return tree;
}
public JCDoWhileLoop DoLoop(JCStatement body, JCExpression cond) {
JCDoWhileLoop tree = new JCDoWhileLoop(body, cond);
tree.pos = pos;
return tree;
}
public JCWhileLoop WhileLoop(JCExpression cond, JCStatement body) {
JCWhileLoop tree = new JCWhileLoop(cond, body);
tree.pos = pos;
return tree;
}
public JCForLoop ForLoop(List<JCStatement> init,
JCExpression cond,
List<JCExpressionStatement> step,
JCStatement body)
{
JCForLoop tree = new JCForLoop(init, cond, step, body);
tree.pos = pos;
return tree;
}
public JCEnhancedForLoop ForeachLoop(JCVariableDecl var, JCExpression expr, JCStatement body) {
JCEnhancedForLoop tree = new JCEnhancedForLoop(var, expr, body);
tree.pos = pos;
return tree;
}
public JCLabeledStatement Labelled(Name label, JCStatement body) {
JCLabeledStatement tree = new JCLabeledStatement(label, body);
tree.pos = pos;
return tree;
}
public JCSwitch Switch(JCExpression selector, List<JCCase> cases) {
JCSwitch tree = new JCSwitch(selector, cases);
tree.pos = pos;
return tree;
}
public JCCase Case(JCExpression pat, List<JCStatement> stats) {
JCCase tree = new JCCase(pat, stats);
tree.pos = pos;
return tree;
}
public JCSynchronized Synchronized(JCExpression lock, JCBlock body) {
JCSynchronized tree = new JCSynchronized(lock, body);
tree.pos = pos;
return tree;
}
public JCTry Try(JCBlock body, List<JCCatch> catchers, JCBlock finalizer) {
return Try(List.nil(), body, catchers, finalizer);
}
public JCTry Try(List<JCTree> resources,
JCBlock body,
List<JCCatch> catchers,
JCBlock finalizer) {
JCTry tree = new JCTry(resources, body, catchers, finalizer);
tree.pos = pos;
return tree;
}
public JCCatch Catch(JCVariableDecl param, JCBlock body) {
JCCatch tree = new JCCatch(param, body);
tree.pos = pos;
return tree;
}
public JCConditional Conditional(JCExpression cond,
JCExpression thenpart,
JCExpression elsepart)
{
JCConditional tree = new JCConditional(cond, thenpart, elsepart);
tree.pos = pos;
return tree;
}
public JCIf If(JCExpression cond, JCStatement thenpart, JCStatement elsepart) {
JCIf tree = new JCIf(cond, thenpart, elsepart);
tree.pos = pos;
return tree;
}
public JCExpressionStatement Exec(JCExpression expr) {
JCExpressionStatement tree = new JCExpressionStatement(expr);
tree.pos = pos;
return tree;
}
public JCBreak Break(Name label) {
JCBreak tree = new JCBreak(label, null);
tree.pos = pos;
return tree;
}
public JCContinue Continue(Name label) {
JCContinue tree = new JCContinue(label, null);
tree.pos = pos;
return tree;
}
public JCReturn Return(JCExpression expr) {
JCReturn tree = new JCReturn(expr);
tree.pos = pos;
return tree;
}
public JCThrow Throw(JCExpression expr) {
JCThrow tree = new JCThrow(expr);
tree.pos = pos;
return tree;
}
public JCAssert Assert(JCExpression cond, JCExpression detail) {
JCAssert tree = new JCAssert(cond, detail);
tree.pos = pos;
return tree;
}
public JCMethodInvocation Apply(List<JCExpression> typeargs,
JCExpression fn,
List<JCExpression> args)
{
JCMethodInvocation tree = new JCMethodInvocation(typeargs, fn, args);
tree.pos = pos;
return tree;
}
public JCNewClass NewClass(JCExpression encl,
List<JCExpression> typeargs,
JCExpression clazz,
List<JCExpression> args,
JCClassDecl def)
{
JCNewClass tree = new JCNewClass(encl, typeargs, clazz, args, def);
tree.pos = pos;
return tree;
}
public JCNewArray NewArray(JCExpression elemtype,
List<JCExpression> dims,
List<JCExpression> elems)
{
JCNewArray tree = new JCNewArray(elemtype, dims, elems);
tree.pos = pos;
return tree;
}
public JCLambda Lambda(List<JCVariableDecl> params,
JCTree body)
{
JCLambda tree = new JCLambda(params, body);
tree.pos = pos;
return tree;
}
public JCParens Parens(JCExpression expr) {
JCParens tree = new JCParens(expr);
tree.pos = pos;
return tree;
}
public JCAssign Assign(JCExpression lhs, JCExpression rhs) {
JCAssign tree = new JCAssign(lhs, rhs);
tree.pos = pos;
return tree;
}
public JCAssignOp Assignop(JCTree.Tag opcode, JCTree lhs, JCTree rhs) {
JCAssignOp tree = new JCAssignOp(opcode, lhs, rhs, null);
tree.pos = pos;
return tree;
}
public JCUnary Unary(JCTree.Tag opcode, JCExpression arg) {
JCUnary tree = new JCUnary(opcode, arg);
tree.pos = pos;
return tree;
}
public JCBinary Binary(JCTree.Tag opcode, JCExpression lhs, JCExpression rhs) {
JCBinary tree = new JCBinary(opcode, lhs, rhs, null);
tree.pos = pos;
return tree;
}
public JCTypeCast TypeCast(JCTree clazz, JCExpression expr) {
JCTypeCast tree = new JCTypeCast(clazz, expr);
tree.pos = pos;
return tree;
}
public JCInstanceOf TypeTest(JCExpression expr, JCTree clazz) {
JCInstanceOf tree = new JCInstanceOf(expr, clazz);
tree.pos = pos;
return tree;
}
public JCArrayAccess Indexed(JCExpression indexed, JCExpression index) {
JCArrayAccess tree = new JCArrayAccess(indexed, index);
tree.pos = pos;
return tree;
}
public JCFieldAccess Select(JCExpression selected, Name selector) {
JCFieldAccess tree = new JCFieldAccess(selected, selector, null);
tree.pos = pos;
return tree;
}
public JCMemberReference Reference(JCMemberReference.ReferenceMode mode, Name name,
JCExpression expr, List<JCExpression> typeargs) {
JCMemberReference tree = new JCMemberReference(mode, name, expr, typeargs);
tree.pos = pos;
return tree;
}
public JCIdent Ident(Name name) {
JCIdent tree = new JCIdent(name, null);
tree.pos = pos;
return tree;
}
public JCLiteral Literal(TypeTag tag, Object value) {
JCLiteral tree = new JCLiteral(tag, value);
tree.pos = pos;
return tree;
}
public JCPrimitiveTypeTree TypeIdent(TypeTag typetag) {
JCPrimitiveTypeTree tree = new JCPrimitiveTypeTree(typetag);
tree.pos = pos;
return tree;
}
public JCArrayTypeTree TypeArray(JCExpression elemtype) {
JCArrayTypeTree tree = new JCArrayTypeTree(elemtype);
tree.pos = pos;
return tree;
}
public JCTypeApply TypeApply(JCExpression clazz, List<JCExpression> arguments) {
JCTypeApply tree = new JCTypeApply(clazz, arguments);
tree.pos = pos;
return tree;
}
public JCTypeUnion TypeUnion(List<JCExpression> components) {
JCTypeUnion tree = new JCTypeUnion(components);
tree.pos = pos;
return tree;
}
public JCTypeIntersection TypeIntersection(List<JCExpression> components) {
JCTypeIntersection tree = new JCTypeIntersection(components);
tree.pos = pos;
return tree;
}
public JCTypeParameter TypeParameter(Name name, List<JCExpression> bounds) {
return TypeParameter(name, bounds, List.nil());
}
public JCTypeParameter TypeParameter(Name name, List<JCExpression> bounds, List<JCAnnotation> annos) {
JCTypeParameter tree = new JCTypeParameter(name, bounds, annos);
tree.pos = pos;
return tree;
}
public JCWildcard Wildcard(TypeBoundKind kind, JCTree type) {
JCWildcard tree = new JCWildcard(kind, type);
tree.pos = pos;
return tree;
}
public TypeBoundKind TypeBoundKind(BoundKind kind) {
TypeBoundKind tree = new TypeBoundKind(kind);
tree.pos = pos;
return tree;
}
public JCAnnotation Annotation(JCTree annotationType, List<JCExpression> args) {
JCAnnotation tree = new JCAnnotation(Tag.ANNOTATION, annotationType, args);
tree.pos = pos;
return tree;
}
public JCAnnotation TypeAnnotation(JCTree annotationType, List<JCExpression> args) {
JCAnnotation tree = new JCAnnotation(Tag.TYPE_ANNOTATION, annotationType, args);
tree.pos = pos;
return tree;
}
public JCModifiers Modifiers(long flags, List<JCAnnotation> annotations) {
JCModifiers tree = new JCModifiers(flags, annotations);
boolean noFlags = (flags & (Flags.ModifierFlags | Flags.ANNOTATION)) == 0;
tree.pos = (noFlags && annotations.isEmpty()) ? Position.NOPOS : pos;
return tree;
}
public JCModifiers Modifiers(long flags) {
return Modifiers(flags, List.nil());
}
@Override
public JCModuleDecl ModuleDef(JCModifiers mods, ModuleKind kind,
JCExpression qualid, List<JCDirective> directives) {
JCModuleDecl tree = new JCModuleDecl(mods, kind, qualid, directives);
tree.pos = pos;
return tree;
}
@Override
public JCExports Exports(JCExpression qualId, List<JCExpression> moduleNames) {
JCExports tree = new JCExports(qualId, moduleNames);
tree.pos = pos;
return tree;
}
@Override
public JCOpens Opens(JCExpression qualId, List<JCExpression> moduleNames) {
JCOpens tree = new JCOpens(qualId, moduleNames);
tree.pos = pos;
return tree;
}
@Override
public JCProvides Provides(JCExpression serviceName, List<JCExpression> implNames) {
JCProvides tree = new JCProvides(serviceName, implNames);
tree.pos = pos;
return tree;
}
@Override
public JCRequires Requires(boolean isTransitive, boolean isStaticPhase, JCExpression qualId) {
JCRequires tree = new JCRequires(isTransitive, isStaticPhase, qualId);
tree.pos = pos;
return tree;
}
@Override
public JCUses Uses(JCExpression qualId) {
JCUses tree = new JCUses(qualId);
tree.pos = pos;
return tree;
}
public JCAnnotatedType AnnotatedType(List<JCAnnotation> annotations, JCExpression underlyingType) {
JCAnnotatedType tree = new JCAnnotatedType(annotations, underlyingType);
tree.pos = pos;
return tree;
}
public JCErroneous Erroneous() {
return Erroneous(List.nil());
}
public JCErroneous Erroneous(List<? extends JCTree> errs) {
JCErroneous tree = new JCErroneous(errs);
tree.pos = pos;
return tree;
}
public LetExpr LetExpr(List<JCVariableDecl> defs, JCExpression expr) {
LetExpr tree = new LetExpr(defs, expr);
tree.pos = pos;
return tree;
}
/* ***************************************************************************
* Derived building blocks.
****************************************************************************/
public JCClassDecl AnonymousClassDef(JCModifiers mods,
List<JCTree> defs)
{
return ClassDef(mods,
names.empty,
List.nil(),
null,
List.nil(),
defs);
}
public LetExpr LetExpr(JCVariableDecl def, JCExpression expr) {
LetExpr tree = new LetExpr(List.of(def), expr);
tree.pos = pos;
return tree;
}
/** Create an identifier from a symbol.
*/
public JCIdent Ident(Symbol sym) {
return (JCIdent)new JCIdent((sym.name != names.empty)
? sym.name
: sym.flatName(), sym)
.setPos(pos)
.setType(sym.type);
}
/** Create a selection node from a qualifier tree and a symbol.
* @param base The qualifier tree.
*/
public JCExpression Select(JCExpression base, Symbol sym) {
return new JCFieldAccess(base, sym.name, sym).setPos(pos).setType(sym.type);
}
/** Create a qualified identifier from a symbol, adding enough qualifications
* to make the reference unique.
*/
public JCExpression QualIdent(Symbol sym) {
return isUnqualifiable(sym)
? Ident(sym)
: Select(QualIdent(sym.owner), sym);
}
/** Create an identifier that refers to the variable declared in given variable
* declaration.
*/
public JCExpression Ident(JCVariableDecl param) {
return Ident(param.sym);
}
/** Create a list of identifiers referring to the variables declared
* in given list of variable declarations.
*/
public List<JCExpression> Idents(List<JCVariableDecl> params) {
ListBuffer<JCExpression> ids = new ListBuffer<>();
for (List<JCVariableDecl> l = params; l.nonEmpty(); l = l.tail)
ids.append(Ident(l.head));
return ids.toList();
}
/** Create a tree representing `this', given its type.
*/
public JCExpression This(Type t) {
return Ident(new VarSymbol(FINAL, names._this, t, t.tsym));
}
/** Create a tree representing qualified `this' given its type
*/
public JCExpression QualThis(Type t) {
return Select(Type(t), new VarSymbol(FINAL, names._this, t, t.tsym));
}
/** Create a tree representing a class literal.
*/
public JCExpression ClassLiteral(ClassSymbol clazz) {
return ClassLiteral(clazz.type);
}
/** Create a tree representing a class literal.
*/
public JCExpression ClassLiteral(Type t) {
VarSymbol lit = new VarSymbol(STATIC | PUBLIC | FINAL,
names._class,
t,
t.tsym);
return Select(Type(t), lit);
}
/** Create a tree representing `super', given its type and owner.
*/
public JCIdent Super(Type t, TypeSymbol owner) {
return Ident(new VarSymbol(FINAL, names._super, t, owner));
}
/**
* Create a method invocation from a method tree and a list of
* argument trees.
*/
public JCMethodInvocation App(JCExpression meth, List<JCExpression> args) {
return Apply(null, meth, args).setType(meth.type.getReturnType());
}
/**
* Create a no-arg method invocation from a method tree
*/
public JCMethodInvocation App(JCExpression meth) {
return Apply(null, meth, List.nil()).setType(meth.type.getReturnType());
}
/** Create a method invocation from a method tree and a list of argument trees.
*/
public JCExpression Create(Symbol ctor, List<JCExpression> args) {
Type t = ctor.owner.erasure(types);
JCNewClass newclass = NewClass(null, null, Type(t), args, null);
newclass.constructor = ctor;
newclass.setType(t);
return newclass;
}
/** Create a tree representing given type.
*/
public JCExpression Type(Type t) {
if (t == null) return null;
JCExpression tp;
switch (t.getTag()) {
case BYTE: case CHAR: case SHORT: case INT: case LONG: case FLOAT:
case DOUBLE: case BOOLEAN: case VOID:
tp = TypeIdent(t.getTag());
break;
case TYPEVAR:
tp = Ident(t.tsym);
break;
case WILDCARD: {
WildcardType a = ((WildcardType) t);
tp = Wildcard(TypeBoundKind(a.kind), a.kind == BoundKind.UNBOUND ? null : Type(a.type));
break;
}
case CLASS:
switch (t.getKind()) {
case UNION: {
UnionClassType tu = (UnionClassType)t;
ListBuffer<JCExpression> la = new ListBuffer<>();
for (Type ta : tu.getAlternativeTypes()) {
la.add(Type(ta));
}
tp = TypeUnion(la.toList());
break;
}
case INTERSECTION: {
IntersectionClassType it = (IntersectionClassType)t;
ListBuffer<JCExpression> la = new ListBuffer<>();
for (Type ta : it.getExplicitComponents()) {
la.add(Type(ta));
}
tp = TypeIntersection(la.toList());
break;
}
default: {
Type outer = t.getEnclosingType();
JCExpression clazz = outer.hasTag(CLASS) && t.tsym.owner.kind == TYP
? Select(Type(outer), t.tsym)
: QualIdent(t.tsym);
tp = t.getTypeArguments().isEmpty()
? clazz
: TypeApply(clazz, Types(t.getTypeArguments()));
break;
}
}
break;
case ARRAY:
tp = TypeArray(Type(types.elemtype(t)));
break;
case ERROR:
tp = TypeIdent(ERROR);
break;
default:
throw new AssertionError("unexpected type: " + t);
}
return tp.setType(t);
}
/** Create a list of trees representing given list of types.
*/
public List<JCExpression> Types(List<Type> ts) {
ListBuffer<JCExpression> lb = new ListBuffer<>();
for (List<Type> l = ts; l.nonEmpty(); l = l.tail)
lb.append(Type(l.head));
return lb.toList();
}
/** Create a variable definition from a variable symbol and an initializer
* expression.
*/
public JCVariableDecl VarDef(VarSymbol v, JCExpression init) {
return (JCVariableDecl)
new JCVariableDecl(
Modifiers(v.flags(), Annotations(v.getRawAttributes())),
v.name,
Type(v.type),
init,
v).setPos(pos).setType(v.type);
}
/** Create annotation trees from annotations.
*/
public List<JCAnnotation> Annotations(List<Attribute.Compound> attributes) {
if (attributes == null) return List.nil();
ListBuffer<JCAnnotation> result = new ListBuffer<>();
for (List<Attribute.Compound> i = attributes; i.nonEmpty(); i=i.tail) {
Attribute a = i.head;
result.append(Annotation(a));
}
return result.toList();
}
public JCLiteral Literal(Object value) {
JCLiteral result = null;
if (value instanceof String) {
result = Literal(CLASS, value).
setType(syms.stringType.constType(value));
} else if (value instanceof Integer) {
result = Literal(INT, value).
setType(syms.intType.constType(value));
} else if (value instanceof Long) {
result = Literal(LONG, value).
setType(syms.longType.constType(value));
} else if (value instanceof Byte) {
result = Literal(BYTE, value).
setType(syms.byteType.constType(value));
} else if (value instanceof Character) {
int v = (int) (((Character) value).toString().charAt(0));
result = Literal(CHAR, v).
setType(syms.charType.constType(v));
} else if (value instanceof Double) {
result = Literal(DOUBLE, value).
setType(syms.doubleType.constType(value));
} else if (value instanceof Float) {
result = Literal(FLOAT, value).
setType(syms.floatType.constType(value));
} else if (value instanceof Short) {
result = Literal(SHORT, value).
setType(syms.shortType.constType(value));
} else if (value instanceof Boolean) {
int v = ((Boolean) value) ? 1 : 0;
result = Literal(BOOLEAN, v).
setType(syms.booleanType.constType(v));
} else {
throw new AssertionError(value);
}
return result;
}
class AnnotationBuilder implements Attribute.Visitor {
JCExpression result = null;
public void visitConstant(Attribute.Constant v) {
result = Literal(v.type.getTag(), v.value);
}
public void visitClass(Attribute.Class clazz) {
result = ClassLiteral(clazz.classType).setType(syms.classType);
}
public void visitEnum(Attribute.Enum e) {
result = QualIdent(e.value);
}
public void visitError(Attribute.Error e) {
if (e instanceof UnresolvedClass) {
result = ClassLiteral(((UnresolvedClass) e).classType).setType(syms.classType);
} else {
result = Erroneous();
}
}
public void visitCompound(Attribute.Compound compound) {
if (compound instanceof Attribute.TypeCompound) {
result = visitTypeCompoundInternal((Attribute.TypeCompound) compound);
} else {
result = visitCompoundInternal(compound);
}
}
public JCAnnotation visitCompoundInternal(Attribute.Compound compound) {
ListBuffer<JCExpression> args = new ListBuffer<>();
for (List<Pair<Symbol.MethodSymbol,Attribute>> values = compound.values; values.nonEmpty(); values=values.tail) {
Pair<MethodSymbol,Attribute> pair = values.head;
JCExpression valueTree = translate(pair.snd);
args.append(Assign(Ident(pair.fst), valueTree).setType(valueTree.type));
}
return Annotation(Type(compound.type), args.toList());
}
public JCAnnotation visitTypeCompoundInternal(Attribute.TypeCompound compound) {
ListBuffer<JCExpression> args = new ListBuffer<>();
for (List<Pair<Symbol.MethodSymbol,Attribute>> values = compound.values; values.nonEmpty(); values=values.tail) {
Pair<MethodSymbol,Attribute> pair = values.head;
JCExpression valueTree = translate(pair.snd);
args.append(Assign(Ident(pair.fst), valueTree).setType(valueTree.type));
}
return TypeAnnotation(Type(compound.type), args.toList());
}
public void visitArray(Attribute.Array array) {
ListBuffer<JCExpression> elems = new ListBuffer<>();
for (int i = 0; i < array.values.length; i++)
elems.append(translate(array.values[i]));
result = NewArray(null, List.nil(), elems.toList()).setType(array.type);
}
JCExpression translate(Attribute a) {
a.accept(this);
return result;
}
JCAnnotation translate(Attribute.Compound a) {
return visitCompoundInternal(a);
}
JCAnnotation translate(Attribute.TypeCompound a) {
return visitTypeCompoundInternal(a);
}
}
AnnotationBuilder annotationBuilder = new AnnotationBuilder();
/** Create an annotation tree from an attribute.
*/
public JCAnnotation Annotation(Attribute a) {
return annotationBuilder.translate((Attribute.Compound)a);
}
public JCAnnotation TypeAnnotation(Attribute a) {
return annotationBuilder.translate((Attribute.TypeCompound) a);
}
/** Create a method definition from a method symbol and a method body.
*/
public JCMethodDecl MethodDef(MethodSymbol m, JCBlock body) {
return MethodDef(m, m.type, body);
}
/** Create a method definition from a method symbol, method type
* and a method body.
*/
public JCMethodDecl MethodDef(MethodSymbol m, Type mtype, JCBlock body) {
return (JCMethodDecl)
new JCMethodDecl(
Modifiers(m.flags(), Annotations(m.getRawAttributes())),
m.name,
Type(mtype.getReturnType()),
TypeParams(mtype.getTypeArguments()),
null, // receiver type
Params(mtype.getParameterTypes(), m),
Types(mtype.getThrownTypes()),
body,
null,
m).setPos(pos).setType(mtype);
}
/** Create a type parameter tree from its name and type.
*/
public JCTypeParameter TypeParam(Name name, TypeVar tvar) {
return (JCTypeParameter)
TypeParameter(name, Types(types.getBounds(tvar))).setPos(pos).setType(tvar);
}
/** Create a list of type parameter trees from a list of type variables.
*/
public List<JCTypeParameter> TypeParams(List<Type> typarams) {
ListBuffer<JCTypeParameter> tparams = new ListBuffer<>();
for (List<Type> l = typarams; l.nonEmpty(); l = l.tail)
tparams.append(TypeParam(l.head.tsym.name, (TypeVar)l.head));
return tparams.toList();
}
/** Create a value parameter tree from its name, type, and owner.
*/
public JCVariableDecl Param(Name name, Type argtype, Symbol owner) {
return VarDef(new VarSymbol(PARAMETER, name, argtype, owner), null);
}
/** Create a a list of value parameter trees x0, ..., xn from a list of
* their types and an their owner.
*/
public List<JCVariableDecl> Params(List<Type> argtypes, Symbol owner) {
ListBuffer<JCVariableDecl> params = new ListBuffer<>();
MethodSymbol mth = (owner.kind == MTH) ? ((MethodSymbol)owner) : null;
if (mth != null && mth.params != null && argtypes.length() == mth.params.length()) {
for (VarSymbol param : ((MethodSymbol)owner).params)
params.append(VarDef(param, null));
} else {
int i = 0;
for (List<Type> l = argtypes; l.nonEmpty(); l = l.tail)
params.append(Param(paramName(i++), l.head, owner));
}
return params.toList();
}
/** Wrap a method invocation in an expression statement or return statement,
* depending on whether the method invocation expression's type is void.
*/
public JCStatement Call(JCExpression apply) {
return apply.type.hasTag(VOID) ? Exec(apply) : Return(apply);
}
/** Construct an assignment from a variable symbol and a right hand side.
*/
public JCStatement Assignment(Symbol v, JCExpression rhs) {
return Exec(Assign(Ident(v), rhs).setType(v.type));
}
/** Construct an index expression from a variable and an expression.
*/
public JCArrayAccess Indexed(Symbol v, JCExpression index) {
JCArrayAccess tree = new JCArrayAccess(QualIdent(v), index);
tree.type = ((ArrayType)v.type).elemtype;
return tree;
}
/** Make an attributed type cast expression.
*/
public JCTypeCast TypeCast(Type type, JCExpression expr) {
return (JCTypeCast)TypeCast(Type(type), expr).setType(type);
}
/* ***************************************************************************
* Helper methods.
****************************************************************************/
/** Can given symbol be referred to in unqualified form?
*/
boolean isUnqualifiable(Symbol sym) {
if (sym.name == names.empty ||
sym.owner == null ||
sym.owner == syms.rootPackage ||
sym.owner.kind == MTH || sym.owner.kind == VAR) {
return true;
} else if (sym.kind == TYP && toplevel != null) {
Iterator<Symbol> it = toplevel.namedImportScope.getSymbolsByName(sym.name).iterator();
if (it.hasNext()) {
Symbol s = it.next();
return
s == sym &&
!it.hasNext();
}
it = toplevel.packge.members().getSymbolsByName(sym.name).iterator();
if (it.hasNext()) {
Symbol s = it.next();
return
s == sym &&
!it.hasNext();
}
it = toplevel.starImportScope.getSymbolsByName(sym.name).iterator();
if (it.hasNext()) {
Symbol s = it.next();
return
s == sym &&
!it.hasNext();
}
}
return false;
}
/** The name of synthetic parameter number `i'.
*/
public Name paramName(int i) { return names.fromString("x" + i); }
/** The name of synthetic type parameter number `i'.
*/
public Name typaramName(int i) { return names.fromString("A" + i); }
}
⏎ com/sun/tools/javac/tree/TreeMaker.java
Or download all of them as a single archive file:
File name: jdk.compiler-11.0.1-src.zip File size: 1347269 bytes Release date: 2018-11-04 Download
⇒ JDK 11 jdk.crypto.cryptoki.jmod - Crypto KI Module
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