duke@1: /* ohair@798: * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. duke@1: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. duke@1: * duke@1: * This code is free software; you can redistribute it and/or modify it duke@1: * under the terms of the GNU General Public License version 2 only, as ohair@554: * published by the Free Software Foundation. Oracle designates this duke@1: * particular file as subject to the "Classpath" exception as provided ohair@554: * by Oracle in the LICENSE file that accompanied this code. duke@1: * duke@1: * This code is distributed in the hope that it will be useful, but WITHOUT duke@1: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or duke@1: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License duke@1: * version 2 for more details (a copy is included in the LICENSE file that duke@1: * accompanied this code). duke@1: * duke@1: * You should have received a copy of the GNU General Public License version duke@1: * 2 along with this work; if not, write to the Free Software Foundation, duke@1: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. duke@1: * ohair@554: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA ohair@554: * or visit www.oracle.com if you need additional information or have any ohair@554: * questions. duke@1: */ duke@1: duke@1: package com.sun.tools.javac.tree; duke@1: duke@1: import com.sun.tools.javac.code.*; duke@1: import com.sun.tools.javac.code.Symbol.*; duke@1: import com.sun.tools.javac.code.Type.*; duke@1: import com.sun.tools.javac.util.*; duke@1: import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition; duke@1: duke@1: import com.sun.tools.javac.tree.JCTree.*; duke@1: duke@1: import static com.sun.tools.javac.code.Flags.*; duke@1: import static com.sun.tools.javac.code.Kinds.*; duke@1: import static com.sun.tools.javac.code.TypeTags.*; duke@1: duke@1: /** Factory class for trees. duke@1: * jjg@581: *

This is NOT part of any supported API. jjg@581: * If you write code that depends on this, you do so at your own risk. duke@1: * This code and its internal interfaces are subject to change or duke@1: * deletion without notice. duke@1: */ duke@1: public class TreeMaker implements JCTree.Factory { duke@1: duke@1: /** The context key for the tree factory. */ duke@1: protected static final Context.Key treeMakerKey = duke@1: new Context.Key(); duke@1: duke@1: /** Get the TreeMaker instance. */ duke@1: public static TreeMaker instance(Context context) { duke@1: TreeMaker instance = context.get(treeMakerKey); duke@1: if (instance == null) duke@1: instance = new TreeMaker(context); duke@1: return instance; duke@1: } duke@1: duke@1: /** The position at which subsequent trees will be created. duke@1: */ duke@1: public int pos = Position.NOPOS; duke@1: duke@1: /** The toplevel tree to which created trees belong. duke@1: */ duke@1: public JCCompilationUnit toplevel; duke@1: duke@1: /** The current name table. */ jjg@113: Names names; duke@1: duke@1: Types types; duke@1: duke@1: /** The current symbol table. */ duke@1: Symtab syms; duke@1: duke@1: /** Create a tree maker with null toplevel and NOPOS as initial position. duke@1: */ duke@1: protected TreeMaker(Context context) { duke@1: context.put(treeMakerKey, this); duke@1: this.pos = Position.NOPOS; duke@1: this.toplevel = null; jjg@113: this.names = Names.instance(context); duke@1: this.syms = Symtab.instance(context); duke@1: this.types = Types.instance(context); duke@1: } duke@1: duke@1: /** Create a tree maker with a given toplevel and FIRSTPOS as initial position. duke@1: */ jjg@113: TreeMaker(JCCompilationUnit toplevel, Names names, Types types, Symtab syms) { duke@1: this.pos = Position.FIRSTPOS; duke@1: this.toplevel = toplevel; duke@1: this.names = names; duke@1: this.types = types; duke@1: this.syms = syms; duke@1: } duke@1: duke@1: /** Create a new tree maker for a given toplevel. duke@1: */ duke@1: public TreeMaker forToplevel(JCCompilationUnit toplevel) { duke@1: return new TreeMaker(toplevel, names, types, syms); duke@1: } duke@1: duke@1: /** Reassign current position. duke@1: */ duke@1: public TreeMaker at(int pos) { duke@1: this.pos = pos; duke@1: return this; duke@1: } duke@1: duke@1: /** Reassign current position. duke@1: */ duke@1: public TreeMaker at(DiagnosticPosition pos) { duke@1: this.pos = (pos == null ? Position.NOPOS : pos.getStartPosition()); duke@1: return this; duke@1: } duke@1: duke@1: /** duke@1: * Create given tree node at current position. duke@1: * @param defs a list of ClassDef, Import, and Skip duke@1: */ duke@1: public JCCompilationUnit TopLevel(List packageAnnotations, duke@1: JCExpression pid, duke@1: List defs) { duke@1: assert packageAnnotations != null; duke@1: for (JCTree node : defs) duke@1: assert node instanceof JCClassDecl duke@1: || node instanceof JCImport duke@1: || node instanceof JCSkip duke@1: || node instanceof JCErroneous duke@1: || (node instanceof JCExpressionStatement duke@1: && ((JCExpressionStatement)node).expr instanceof JCErroneous) duke@1: : node.getClass().getSimpleName(); duke@1: JCCompilationUnit tree = new JCCompilationUnit(packageAnnotations, pid, defs, duke@1: null, null, null, null); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCImport Import(JCTree qualid, boolean importStatic) { duke@1: JCImport tree = new JCImport(qualid, importStatic); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCClassDecl ClassDef(JCModifiers mods, duke@1: Name name, duke@1: List typarams, duke@1: JCTree extending, duke@1: List implementing, duke@1: List defs) duke@1: { duke@1: JCClassDecl tree = new JCClassDecl(mods, duke@1: name, duke@1: typarams, duke@1: extending, duke@1: implementing, duke@1: defs, duke@1: null); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCMethodDecl MethodDef(JCModifiers mods, duke@1: Name name, duke@1: JCExpression restype, duke@1: List typarams, duke@1: List params, duke@1: List thrown, duke@1: JCBlock body, jjg@308: JCExpression defaultValue) { jjg@308: return MethodDef( jjg@308: mods, name, restype, typarams, params, jjg@308: null, thrown, body, defaultValue); jjg@308: } jjg@308: jjg@308: public JCMethodDecl MethodDef(JCModifiers mods, jjg@308: Name name, jjg@308: JCExpression restype, jjg@308: List typarams, jjg@308: List params, jjg@308: List receiver, jjg@308: List thrown, jjg@308: JCBlock body, duke@1: JCExpression defaultValue) duke@1: { duke@1: JCMethodDecl tree = new JCMethodDecl(mods, duke@1: name, duke@1: restype, duke@1: typarams, duke@1: params, jjg@308: receiver, duke@1: thrown, duke@1: body, duke@1: defaultValue, duke@1: null); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCVariableDecl VarDef(JCModifiers mods, Name name, JCExpression vartype, JCExpression init) { duke@1: JCVariableDecl tree = new JCVariableDecl(mods, name, vartype, init, null); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCSkip Skip() { duke@1: JCSkip tree = new JCSkip(); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCBlock Block(long flags, List stats) { duke@1: JCBlock tree = new JCBlock(flags, stats); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCDoWhileLoop DoLoop(JCStatement body, JCExpression cond) { duke@1: JCDoWhileLoop tree = new JCDoWhileLoop(body, cond); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCWhileLoop WhileLoop(JCExpression cond, JCStatement body) { duke@1: JCWhileLoop tree = new JCWhileLoop(cond, body); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCForLoop ForLoop(List init, duke@1: JCExpression cond, duke@1: List step, duke@1: JCStatement body) duke@1: { duke@1: JCForLoop tree = new JCForLoop(init, cond, step, body); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCEnhancedForLoop ForeachLoop(JCVariableDecl var, JCExpression expr, JCStatement body) { duke@1: JCEnhancedForLoop tree = new JCEnhancedForLoop(var, expr, body); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCLabeledStatement Labelled(Name label, JCStatement body) { duke@1: JCLabeledStatement tree = new JCLabeledStatement(label, body); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCSwitch Switch(JCExpression selector, List cases) { duke@1: JCSwitch tree = new JCSwitch(selector, cases); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCCase Case(JCExpression pat, List stats) { duke@1: JCCase tree = new JCCase(pat, stats); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCSynchronized Synchronized(JCExpression lock, JCBlock body) { duke@1: JCSynchronized tree = new JCSynchronized(lock, body); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCTry Try(JCBlock body, List catchers, JCBlock finalizer) { darcy@609: return Try(List.nil(), body, catchers, finalizer); darcy@609: } darcy@609: darcy@609: public JCTry Try(List resources, darcy@609: JCBlock body, darcy@609: List catchers, darcy@609: JCBlock finalizer) { darcy@609: JCTry tree = new JCTry(resources, body, catchers, finalizer); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCCatch Catch(JCVariableDecl param, JCBlock body) { duke@1: JCCatch tree = new JCCatch(param, body); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCConditional Conditional(JCExpression cond, duke@1: JCExpression thenpart, duke@1: JCExpression elsepart) duke@1: { duke@1: JCConditional tree = new JCConditional(cond, thenpart, elsepart); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCIf If(JCExpression cond, JCStatement thenpart, JCStatement elsepart) { duke@1: JCIf tree = new JCIf(cond, thenpart, elsepart); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCExpressionStatement Exec(JCExpression expr) { duke@1: JCExpressionStatement tree = new JCExpressionStatement(expr); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCBreak Break(Name label) { duke@1: JCBreak tree = new JCBreak(label, null); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCContinue Continue(Name label) { duke@1: JCContinue tree = new JCContinue(label, null); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCReturn Return(JCExpression expr) { duke@1: JCReturn tree = new JCReturn(expr); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCThrow Throw(JCTree expr) { duke@1: JCThrow tree = new JCThrow(expr); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCAssert Assert(JCExpression cond, JCExpression detail) { duke@1: JCAssert tree = new JCAssert(cond, detail); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCMethodInvocation Apply(List typeargs, duke@1: JCExpression fn, duke@1: List args) duke@1: { duke@1: JCMethodInvocation tree = new JCMethodInvocation(typeargs, fn, args); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCNewClass NewClass(JCExpression encl, duke@1: List typeargs, duke@1: JCExpression clazz, duke@1: List args, duke@1: JCClassDecl def) duke@1: { duke@1: JCNewClass tree = new JCNewClass(encl, typeargs, clazz, args, def); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCNewArray NewArray(JCExpression elemtype, duke@1: List dims, duke@1: List elems) duke@1: { duke@1: JCNewArray tree = new JCNewArray(elemtype, dims, elems); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCParens Parens(JCExpression expr) { duke@1: JCParens tree = new JCParens(expr); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCAssign Assign(JCExpression lhs, JCExpression rhs) { duke@1: JCAssign tree = new JCAssign(lhs, rhs); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCAssignOp Assignop(int opcode, JCTree lhs, JCTree rhs) { duke@1: JCAssignOp tree = new JCAssignOp(opcode, lhs, rhs, null); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCUnary Unary(int opcode, JCExpression arg) { duke@1: JCUnary tree = new JCUnary(opcode, arg); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCBinary Binary(int opcode, JCExpression lhs, JCExpression rhs) { duke@1: JCBinary tree = new JCBinary(opcode, lhs, rhs, null); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCTypeCast TypeCast(JCTree clazz, JCExpression expr) { duke@1: JCTypeCast tree = new JCTypeCast(clazz, expr); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCInstanceOf TypeTest(JCExpression expr, JCTree clazz) { duke@1: JCInstanceOf tree = new JCInstanceOf(expr, clazz); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCArrayAccess Indexed(JCExpression indexed, JCExpression index) { duke@1: JCArrayAccess tree = new JCArrayAccess(indexed, index); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCFieldAccess Select(JCExpression selected, Name selector) { duke@1: JCFieldAccess tree = new JCFieldAccess(selected, selector, null); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCIdent Ident(Name name) { duke@1: JCIdent tree = new JCIdent(name, null); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCLiteral Literal(int tag, Object value) { duke@1: JCLiteral tree = new JCLiteral(tag, value); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCPrimitiveTypeTree TypeIdent(int typetag) { duke@1: JCPrimitiveTypeTree tree = new JCPrimitiveTypeTree(typetag); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCArrayTypeTree TypeArray(JCExpression elemtype) { duke@1: JCArrayTypeTree tree = new JCArrayTypeTree(elemtype); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCTypeApply TypeApply(JCExpression clazz, List arguments) { duke@1: JCTypeApply tree = new JCTypeApply(clazz, arguments); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: jjg@724: public JCTypeDisjunction TypeDisjunction(List components) { jjg@724: JCTypeDisjunction tree = new JCTypeDisjunction(components); mcimadamore@550: tree.pos = pos; mcimadamore@550: return tree; mcimadamore@550: } mcimadamore@550: duke@1: public JCTypeParameter TypeParameter(Name name, List bounds) { jjg@308: return TypeParameter(name, bounds, List.nil()); jjg@308: } jjg@308: jjg@308: public JCTypeParameter TypeParameter(Name name, List bounds, List annos) { jjg@308: JCTypeParameter tree = new JCTypeParameter(name, bounds, annos); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCWildcard Wildcard(TypeBoundKind kind, JCTree type) { duke@1: JCWildcard tree = new JCWildcard(kind, type); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public TypeBoundKind TypeBoundKind(BoundKind kind) { duke@1: TypeBoundKind tree = new TypeBoundKind(kind); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCAnnotation Annotation(JCTree annotationType, List args) { duke@1: JCAnnotation tree = new JCAnnotation(annotationType, args); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: jjg@308: public JCTypeAnnotation TypeAnnotation(JCTree annotationType, List args) { jjg@308: JCTypeAnnotation tree = new JCTypeAnnotation(annotationType, args); jjg@308: tree.pos = pos; jjg@308: return tree; jjg@308: } jjg@308: duke@1: public JCModifiers Modifiers(long flags, List annotations) { duke@1: JCModifiers tree = new JCModifiers(flags, annotations); jjg@613: boolean noFlags = (flags & (Flags.ModifierFlags | Flags.ANNOTATION)) == 0; duke@1: tree.pos = (noFlags && annotations.isEmpty()) ? Position.NOPOS : pos; duke@1: return tree; duke@1: } duke@1: duke@1: public JCModifiers Modifiers(long flags) { duke@1: return Modifiers(flags, List.nil()); duke@1: } duke@1: jjg@308: public JCAnnotatedType AnnotatedType(List annotations, JCExpression underlyingType) { jjg@308: JCAnnotatedType tree = new JCAnnotatedType(annotations, underlyingType); jjg@308: tree.pos = pos; jjg@308: return tree; jjg@308: } jjg@308: duke@1: public JCErroneous Erroneous() { duke@1: return Erroneous(List.nil()); duke@1: } duke@1: duke@1: public JCErroneous Erroneous(List errs) { duke@1: JCErroneous tree = new JCErroneous(errs); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: public LetExpr LetExpr(List defs, JCTree expr) { duke@1: LetExpr tree = new LetExpr(defs, expr); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: /* *************************************************************************** duke@1: * Derived building blocks. duke@1: ****************************************************************************/ duke@1: duke@1: public JCClassDecl AnonymousClassDef(JCModifiers mods, duke@1: List defs) duke@1: { duke@1: return ClassDef(mods, duke@1: names.empty, duke@1: List.nil(), duke@1: null, duke@1: List.nil(), duke@1: defs); duke@1: } duke@1: duke@1: public LetExpr LetExpr(JCVariableDecl def, JCTree expr) { duke@1: LetExpr tree = new LetExpr(List.of(def), expr); duke@1: tree.pos = pos; duke@1: return tree; duke@1: } duke@1: duke@1: /** Create an identifier from a symbol. duke@1: */ duke@1: public JCIdent Ident(Symbol sym) { duke@1: return (JCIdent)new JCIdent((sym.name != names.empty) duke@1: ? sym.name duke@1: : sym.flatName(), sym) duke@1: .setPos(pos) duke@1: .setType(sym.type); duke@1: } duke@1: duke@1: /** Create a selection node from a qualifier tree and a symbol. duke@1: * @param base The qualifier tree. duke@1: */ duke@1: public JCExpression Select(JCExpression base, Symbol sym) { duke@1: return new JCFieldAccess(base, sym.name, sym).setPos(pos).setType(sym.type); duke@1: } duke@1: duke@1: /** Create a qualified identifier from a symbol, adding enough qualifications duke@1: * to make the reference unique. duke@1: */ duke@1: public JCExpression QualIdent(Symbol sym) { duke@1: return isUnqualifiable(sym) duke@1: ? Ident(sym) duke@1: : Select(QualIdent(sym.owner), sym); duke@1: } duke@1: duke@1: /** Create an identifier that refers to the variable declared in given variable duke@1: * declaration. duke@1: */ duke@1: public JCExpression Ident(JCVariableDecl param) { duke@1: return Ident(param.sym); duke@1: } duke@1: duke@1: /** Create a list of identifiers referring to the variables declared duke@1: * in given list of variable declarations. duke@1: */ duke@1: public List Idents(List params) { duke@1: ListBuffer ids = new ListBuffer(); duke@1: for (List l = params; l.nonEmpty(); l = l.tail) duke@1: ids.append(Ident(l.head)); duke@1: return ids.toList(); duke@1: } duke@1: duke@1: /** Create a tree representing `this', given its type. duke@1: */ duke@1: public JCExpression This(Type t) { duke@1: return Ident(new VarSymbol(FINAL, names._this, t, t.tsym)); duke@1: } duke@1: duke@1: /** Create a tree representing a class literal. duke@1: */ duke@1: public JCExpression ClassLiteral(ClassSymbol clazz) { duke@1: return ClassLiteral(clazz.type); duke@1: } duke@1: duke@1: /** Create a tree representing a class literal. duke@1: */ duke@1: public JCExpression ClassLiteral(Type t) { duke@1: VarSymbol lit = new VarSymbol(STATIC | PUBLIC | FINAL, duke@1: names._class, duke@1: t, duke@1: t.tsym); duke@1: return Select(Type(t), lit); duke@1: } duke@1: duke@1: /** Create a tree representing `super', given its type and owner. duke@1: */ duke@1: public JCIdent Super(Type t, TypeSymbol owner) { duke@1: return Ident(new VarSymbol(FINAL, names._super, t, owner)); duke@1: } duke@1: duke@1: /** duke@1: * Create a method invocation from a method tree and a list of duke@1: * argument trees. duke@1: */ duke@1: public JCMethodInvocation App(JCExpression meth, List args) { duke@1: return Apply(null, meth, args).setType(meth.type.getReturnType()); duke@1: } duke@1: duke@1: /** duke@1: * Create a no-arg method invocation from a method tree duke@1: */ duke@1: public JCMethodInvocation App(JCExpression meth) { duke@1: return Apply(null, meth, List.nil()).setType(meth.type.getReturnType()); duke@1: } duke@1: duke@1: /** Create a method invocation from a method tree and a list of argument trees. duke@1: */ duke@1: public JCExpression Create(Symbol ctor, List args) { duke@1: Type t = ctor.owner.erasure(types); duke@1: JCNewClass newclass = NewClass(null, null, Type(t), args, null); duke@1: newclass.constructor = ctor; duke@1: newclass.setType(t); duke@1: return newclass; duke@1: } duke@1: duke@1: /** Create a tree representing given type. duke@1: */ duke@1: public JCExpression Type(Type t) { duke@1: if (t == null) return null; duke@1: JCExpression tp; duke@1: switch (t.tag) { duke@1: case BYTE: case CHAR: case SHORT: case INT: case LONG: case FLOAT: duke@1: case DOUBLE: case BOOLEAN: case VOID: duke@1: tp = TypeIdent(t.tag); duke@1: break; duke@1: case TYPEVAR: duke@1: tp = Ident(t.tsym); duke@1: break; duke@1: case WILDCARD: { duke@1: WildcardType a = ((WildcardType) t); duke@1: tp = Wildcard(TypeBoundKind(a.kind), Type(a.type)); duke@1: break; duke@1: } duke@1: case CLASS: duke@1: Type outer = t.getEnclosingType(); duke@1: JCExpression clazz = outer.tag == CLASS && t.tsym.owner.kind == TYP duke@1: ? Select(Type(outer), t.tsym) duke@1: : QualIdent(t.tsym); duke@1: tp = t.getTypeArguments().isEmpty() duke@1: ? clazz duke@1: : TypeApply(clazz, Types(t.getTypeArguments())); duke@1: break; duke@1: case ARRAY: duke@1: tp = TypeArray(Type(types.elemtype(t))); duke@1: break; duke@1: case ERROR: duke@1: tp = TypeIdent(ERROR); duke@1: break; duke@1: default: duke@1: throw new AssertionError("unexpected type: " + t); duke@1: } duke@1: return tp.setType(t); duke@1: } duke@1: //where duke@1: private JCExpression Selectors(JCExpression base, Symbol sym, Symbol limit) { duke@1: if (sym == limit) return base; duke@1: else return Select(Selectors(base, sym.owner, limit), sym); duke@1: } duke@1: duke@1: /** Create a list of trees representing given list of types. duke@1: */ duke@1: public List Types(List ts) { duke@1: ListBuffer types = new ListBuffer(); duke@1: for (List l = ts; l.nonEmpty(); l = l.tail) duke@1: types.append(Type(l.head)); duke@1: return types.toList(); duke@1: } duke@1: duke@1: /** Create a variable definition from a variable symbol and an initializer duke@1: * expression. duke@1: */ duke@1: public JCVariableDecl VarDef(VarSymbol v, JCExpression init) { duke@1: return (JCVariableDecl) duke@1: new JCVariableDecl( duke@1: Modifiers(v.flags(), Annotations(v.getAnnotationMirrors())), duke@1: v.name, duke@1: Type(v.type), duke@1: init, duke@1: v).setPos(pos).setType(v.type); duke@1: } duke@1: duke@1: /** Create annotation trees from annotations. duke@1: */ duke@1: public List Annotations(List attributes) { duke@1: if (attributes == null) return List.nil(); duke@1: ListBuffer result = new ListBuffer(); duke@1: for (List i = attributes; i.nonEmpty(); i=i.tail) { duke@1: Attribute a = i.head; duke@1: result.append(Annotation(a)); duke@1: } duke@1: return result.toList(); duke@1: } duke@1: duke@1: public JCLiteral Literal(Object value) { duke@1: JCLiteral result = null; duke@1: if (value instanceof String) { duke@1: result = Literal(CLASS, value). duke@1: setType(syms.stringType.constType(value)); duke@1: } else if (value instanceof Integer) { duke@1: result = Literal(INT, value). duke@1: setType(syms.intType.constType(value)); duke@1: } else if (value instanceof Long) { duke@1: result = Literal(LONG, value). duke@1: setType(syms.longType.constType(value)); duke@1: } else if (value instanceof Byte) { duke@1: result = Literal(BYTE, value). duke@1: setType(syms.byteType.constType(value)); duke@1: } else if (value instanceof Character) { jjg@788: int v = (int) (((Character) value).toString().charAt(0)); duke@1: result = Literal(CHAR, value). jjg@788: setType(syms.charType.constType(v)); duke@1: } else if (value instanceof Double) { duke@1: result = Literal(DOUBLE, value). duke@1: setType(syms.doubleType.constType(value)); duke@1: } else if (value instanceof Float) { duke@1: result = Literal(FLOAT, value). duke@1: setType(syms.floatType.constType(value)); duke@1: } else if (value instanceof Short) { duke@1: result = Literal(SHORT, value). duke@1: setType(syms.shortType.constType(value)); jjg@788: } else if (value instanceof Boolean) { jjg@788: int v = ((Boolean) value) ? 1 : 0; jjg@788: result = Literal(BOOLEAN, v). jjg@788: setType(syms.booleanType.constType(v)); duke@1: } else { duke@1: throw new AssertionError(value); duke@1: } duke@1: return result; duke@1: } duke@1: duke@1: class AnnotationBuilder implements Attribute.Visitor { duke@1: JCExpression result = null; duke@1: public void visitConstant(Attribute.Constant v) { duke@1: result = Literal(v.value); duke@1: } duke@1: public void visitClass(Attribute.Class clazz) { duke@1: result = ClassLiteral(clazz.type).setType(syms.classType); duke@1: } duke@1: public void visitEnum(Attribute.Enum e) { duke@1: result = QualIdent(e.value); duke@1: } duke@1: public void visitError(Attribute.Error e) { duke@1: result = Erroneous(); duke@1: } duke@1: public void visitCompound(Attribute.Compound compound) { duke@1: result = visitCompoundInternal(compound); duke@1: } duke@1: public JCAnnotation visitCompoundInternal(Attribute.Compound compound) { duke@1: ListBuffer args = new ListBuffer(); duke@1: for (List> values = compound.values; values.nonEmpty(); values=values.tail) { duke@1: Pair pair = values.head; duke@1: JCExpression valueTree = translate(pair.snd); duke@1: args.append(Assign(Ident(pair.fst), valueTree).setType(valueTree.type)); duke@1: } duke@1: return Annotation(Type(compound.type), args.toList()); duke@1: } duke@1: public void visitArray(Attribute.Array array) { duke@1: ListBuffer elems = new ListBuffer(); duke@1: for (int i = 0; i < array.values.length; i++) duke@1: elems.append(translate(array.values[i])); duke@1: result = NewArray(null, List.nil(), elems.toList()).setType(array.type); duke@1: } duke@1: JCExpression translate(Attribute a) { duke@1: a.accept(this); duke@1: return result; duke@1: } duke@1: JCAnnotation translate(Attribute.Compound a) { duke@1: return visitCompoundInternal(a); duke@1: } duke@1: } duke@1: AnnotationBuilder annotationBuilder = new AnnotationBuilder(); duke@1: duke@1: /** Create an annotation tree from an attribute. duke@1: */ duke@1: public JCAnnotation Annotation(Attribute a) { duke@1: return annotationBuilder.translate((Attribute.Compound)a); duke@1: } duke@1: duke@1: /** Create a method definition from a method symbol and a method body. duke@1: */ duke@1: public JCMethodDecl MethodDef(MethodSymbol m, JCBlock body) { duke@1: return MethodDef(m, m.type, body); duke@1: } duke@1: duke@1: /** Create a method definition from a method symbol, method type duke@1: * and a method body. duke@1: */ duke@1: public JCMethodDecl MethodDef(MethodSymbol m, Type mtype, JCBlock body) { duke@1: return (JCMethodDecl) duke@1: new JCMethodDecl( duke@1: Modifiers(m.flags(), Annotations(m.getAnnotationMirrors())), duke@1: m.name, duke@1: Type(mtype.getReturnType()), duke@1: TypeParams(mtype.getTypeArguments()), duke@1: Params(mtype.getParameterTypes(), m), jjg@308: null, duke@1: Types(mtype.getThrownTypes()), duke@1: body, duke@1: null, duke@1: m).setPos(pos).setType(mtype); duke@1: } duke@1: duke@1: /** Create a type parameter tree from its name and type. duke@1: */ duke@1: public JCTypeParameter TypeParam(Name name, TypeVar tvar) { duke@1: return (JCTypeParameter) duke@1: TypeParameter(name, Types(types.getBounds(tvar))).setPos(pos).setType(tvar); duke@1: } duke@1: duke@1: /** Create a list of type parameter trees from a list of type variables. duke@1: */ duke@1: public List TypeParams(List typarams) { duke@1: ListBuffer tparams = new ListBuffer(); duke@1: int i = 0; duke@1: for (List l = typarams; l.nonEmpty(); l = l.tail) duke@1: tparams.append(TypeParam(l.head.tsym.name, (TypeVar)l.head)); duke@1: return tparams.toList(); duke@1: } duke@1: duke@1: /** Create a value parameter tree from its name, type, and owner. duke@1: */ duke@1: public JCVariableDecl Param(Name name, Type argtype, Symbol owner) { duke@1: return VarDef(new VarSymbol(0, name, argtype, owner), null); duke@1: } duke@1: duke@1: /** Create a a list of value parameter trees x0, ..., xn from a list of duke@1: * their types and an their owner. duke@1: */ duke@1: public List Params(List argtypes, Symbol owner) { duke@1: ListBuffer params = new ListBuffer(); duke@1: MethodSymbol mth = (owner.kind == MTH) ? ((MethodSymbol)owner) : null; duke@1: if (mth != null && mth.params != null && argtypes.length() == mth.params.length()) { duke@1: for (VarSymbol param : ((MethodSymbol)owner).params) duke@1: params.append(VarDef(param, null)); duke@1: } else { duke@1: int i = 0; duke@1: for (List l = argtypes; l.nonEmpty(); l = l.tail) duke@1: params.append(Param(paramName(i++), l.head, owner)); duke@1: } duke@1: return params.toList(); duke@1: } duke@1: duke@1: /** Wrap a method invocation in an expression statement or return statement, duke@1: * depending on whether the method invocation expression's type is void. duke@1: */ duke@1: public JCStatement Call(JCExpression apply) { duke@1: return apply.type.tag == VOID ? Exec(apply) : Return(apply); duke@1: } duke@1: duke@1: /** Construct an assignment from a variable symbol and a right hand side. duke@1: */ duke@1: public JCStatement Assignment(Symbol v, JCExpression rhs) { duke@1: return Exec(Assign(Ident(v), rhs).setType(v.type)); duke@1: } duke@1: duke@1: /** Construct an index expression from a variable and an expression. duke@1: */ duke@1: public JCArrayAccess Indexed(Symbol v, JCExpression index) { duke@1: JCArrayAccess tree = new JCArrayAccess(QualIdent(v), index); duke@1: tree.type = ((ArrayType)v.type).elemtype; duke@1: return tree; duke@1: } duke@1: duke@1: /** Make an attributed type cast expression. duke@1: */ duke@1: public JCTypeCast TypeCast(Type type, JCExpression expr) { duke@1: return (JCTypeCast)TypeCast(Type(type), expr).setType(type); duke@1: } duke@1: duke@1: /* *************************************************************************** duke@1: * Helper methods. duke@1: ****************************************************************************/ duke@1: duke@1: /** Can given symbol be referred to in unqualified form? duke@1: */ duke@1: boolean isUnqualifiable(Symbol sym) { duke@1: if (sym.name == names.empty || duke@1: sym.owner == null || duke@1: sym.owner.kind == MTH || sym.owner.kind == VAR) { duke@1: return true; duke@1: } else if (sym.kind == TYP && toplevel != null) { duke@1: Scope.Entry e; duke@1: e = toplevel.namedImportScope.lookup(sym.name); duke@1: if (e.scope != null) { duke@1: return duke@1: e.sym == sym && duke@1: e.next().scope == null; duke@1: } duke@1: e = toplevel.packge.members().lookup(sym.name); duke@1: if (e.scope != null) { duke@1: return duke@1: e.sym == sym && duke@1: e.next().scope == null; duke@1: } duke@1: e = toplevel.starImportScope.lookup(sym.name); duke@1: if (e.scope != null) { duke@1: return duke@1: e.sym == sym && duke@1: e.next().scope == null; duke@1: } duke@1: } duke@1: return false; duke@1: } duke@1: duke@1: /** The name of synthetic parameter number `i'. duke@1: */ duke@1: public Name paramName(int i) { return names.fromString("x" + i); } duke@1: duke@1: /** The name of synthetic type parameter number `i'. duke@1: */ duke@1: public Name typaramName(int i) { return names.fromString("A" + i); } duke@1: }