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author | Roel Spilker <r.spilker@gmail.com> | 2009-11-25 11:40:36 +0100 |
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committer | Roel Spilker <r.spilker@gmail.com> | 2009-11-25 11:41:53 +0100 |
commit | 1c77e9aaad1554280f9620de799bd20ab29de6ea (patch) | |
tree | 97bf7591273b04ac5f6a14c222eaff2412a4685c | |
parent | 1a0e611a9c5e1ee518670647ce1a44beae559b44 (diff) | |
download | lombok-1c77e9aaad1554280f9620de799bd20ab29de6ea.tar.gz lombok-1c77e9aaad1554280f9620de799bd20ab29de6ea.tar.bz2 lombok-1c77e9aaad1554280f9620de799bd20ab29de6ea.zip |
Work in progress on delombok.
-rw-r--r-- | .classpath | 1 | ||||
-rw-r--r-- | src/delombok/lombok/delombok/Comment.java | 36 | ||||
-rw-r--r-- | src/delombok/lombok/delombok/PrettyCommentsPrinter.java | 1355 | ||||
-rw-r--r-- | src/delombok/lombok/delombok/PrettyPrinter.java | 199 |
4 files changed, 1591 insertions, 0 deletions
@@ -3,6 +3,7 @@ <classpathentry kind="src" path="src/core"/> <classpathentry kind="src" path="src/eclipseAgent"/> <classpathentry kind="src" path="src/installer"/> + <classpathentry kind="src" path="src/delombok"/> <classpathentry kind="src" path="experimental/src"/> <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/> <classpathentry kind="lib" path="deps/lombok/org.eclipse.jdt.core_3.5.0.v_963.jar"/> diff --git a/src/delombok/lombok/delombok/Comment.java b/src/delombok/lombok/delombok/Comment.java new file mode 100644 index 00000000..6f6910b4 --- /dev/null +++ b/src/delombok/lombok/delombok/Comment.java @@ -0,0 +1,36 @@ +/* + * Copyright © 2009 Reinier Zwitserloot and Roel Spilker. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +package lombok.delombok; + +class Comment { + final int pos; + final String content; + + Comment(int pos, String content) { + this.pos = pos; + this.content = content; + } + + public String summary() { + return String.format("%d: %s", pos, content); + } +} diff --git a/src/delombok/lombok/delombok/PrettyCommentsPrinter.java b/src/delombok/lombok/delombok/PrettyCommentsPrinter.java new file mode 100644 index 00000000..68e503a7 --- /dev/null +++ b/src/delombok/lombok/delombok/PrettyCommentsPrinter.java @@ -0,0 +1,1355 @@ +/* + * Copyright 1999-2006 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Sun designates this + * particular file as subject to the "Classpath" exception as provided + * by Sun in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + */ +package lombok.delombok; + +import static com.sun.tools.javac.code.Flags.ANNOTATION; +import static com.sun.tools.javac.code.Flags.ENUM; +import static com.sun.tools.javac.code.Flags.INTERFACE; +import static com.sun.tools.javac.code.Flags.SYNTHETIC; +import static com.sun.tools.javac.code.Flags.StandardFlags; +import static com.sun.tools.javac.code.Flags.VARARGS; + +import java.io.IOException; +import java.io.Writer; +import java.lang.reflect.Field; +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.util.Map; + +import com.sun.source.tree.Tree; +import com.sun.tools.javac.code.Flags; +import com.sun.tools.javac.code.Symbol; +import com.sun.tools.javac.code.TypeTags; +import com.sun.tools.javac.tree.JCTree; +import com.sun.tools.javac.tree.TreeInfo; +import com.sun.tools.javac.tree.TreeScanner; +import com.sun.tools.javac.tree.JCTree.JCAnnotation; +import com.sun.tools.javac.tree.JCTree.JCArrayAccess; +import com.sun.tools.javac.tree.JCTree.JCArrayTypeTree; +import com.sun.tools.javac.tree.JCTree.JCAssert; +import com.sun.tools.javac.tree.JCTree.JCAssign; +import com.sun.tools.javac.tree.JCTree.JCAssignOp; +import com.sun.tools.javac.tree.JCTree.JCBinary; +import com.sun.tools.javac.tree.JCTree.JCBlock; +import com.sun.tools.javac.tree.JCTree.JCBreak; +import com.sun.tools.javac.tree.JCTree.JCCase; +import com.sun.tools.javac.tree.JCTree.JCCatch; +import com.sun.tools.javac.tree.JCTree.JCClassDecl; +import com.sun.tools.javac.tree.JCTree.JCCompilationUnit; +import com.sun.tools.javac.tree.JCTree.JCConditional; +import com.sun.tools.javac.tree.JCTree.JCContinue; +import com.sun.tools.javac.tree.JCTree.JCDoWhileLoop; +import com.sun.tools.javac.tree.JCTree.JCEnhancedForLoop; +import com.sun.tools.javac.tree.JCTree.JCErroneous; +import com.sun.tools.javac.tree.JCTree.JCExpression; +import com.sun.tools.javac.tree.JCTree.JCExpressionStatement; +import com.sun.tools.javac.tree.JCTree.JCFieldAccess; +import com.sun.tools.javac.tree.JCTree.JCForLoop; +import com.sun.tools.javac.tree.JCTree.JCIdent; +import com.sun.tools.javac.tree.JCTree.JCIf; +import com.sun.tools.javac.tree.JCTree.JCImport; +import com.sun.tools.javac.tree.JCTree.JCInstanceOf; +import com.sun.tools.javac.tree.JCTree.JCLabeledStatement; +import com.sun.tools.javac.tree.JCTree.JCLiteral; +import com.sun.tools.javac.tree.JCTree.JCMethodDecl; +import com.sun.tools.javac.tree.JCTree.JCMethodInvocation; +import com.sun.tools.javac.tree.JCTree.JCModifiers; +import com.sun.tools.javac.tree.JCTree.JCNewArray; +import com.sun.tools.javac.tree.JCTree.JCNewClass; +import com.sun.tools.javac.tree.JCTree.JCParens; +import com.sun.tools.javac.tree.JCTree.JCPrimitiveTypeTree; +import com.sun.tools.javac.tree.JCTree.JCReturn; +import com.sun.tools.javac.tree.JCTree.JCSkip; +import com.sun.tools.javac.tree.JCTree.JCStatement; +import com.sun.tools.javac.tree.JCTree.JCSwitch; +import com.sun.tools.javac.tree.JCTree.JCSynchronized; +import com.sun.tools.javac.tree.JCTree.JCThrow; +import com.sun.tools.javac.tree.JCTree.JCTry; +import com.sun.tools.javac.tree.JCTree.JCTypeApply; +import com.sun.tools.javac.tree.JCTree.JCTypeCast; +import com.sun.tools.javac.tree.JCTree.JCTypeParameter; +import com.sun.tools.javac.tree.JCTree.JCUnary; +import com.sun.tools.javac.tree.JCTree.JCVariableDecl; +import com.sun.tools.javac.tree.JCTree.JCWhileLoop; +import com.sun.tools.javac.tree.JCTree.JCWildcard; +import com.sun.tools.javac.tree.JCTree.LetExpr; +import com.sun.tools.javac.tree.JCTree.TypeBoundKind; +import com.sun.tools.javac.util.Convert; +import com.sun.tools.javac.util.List; +import com.sun.tools.javac.util.Name; + +/** Prints out a tree as an indented Java source program. + * + * <p><b>This is NOT part of any API supported by Sun Microsystems. 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 PrettyCommentsPrinter extends JCTree.Visitor { + + private static final Method GET_TAG_METHOD; + private static final Field TAG_FIELD; + static { + Method m = null; + Field f = null; + try { + m = JCTree.class.getDeclaredMethod("getTag"); + System.out.println("Using getTag method"); + } + catch (NoSuchMethodException e) { + try { + f = JCTree.class.getDeclaredField("tag"); + System.out.println("Using tag field"); + } + catch (NoSuchFieldException e1) { + e1.printStackTrace(); + } + } + GET_TAG_METHOD = m; + TAG_FIELD = f; + } + + static int getTag(JCTree tree) { + if (GET_TAG_METHOD != null) { + try { + return (Integer)GET_TAG_METHOD.invoke(tree); + } + catch (IllegalAccessException e) { + throw new RuntimeException(e); + } + catch (InvocationTargetException e) { + throw new RuntimeException(e.getCause()); + } + } + try { + return TAG_FIELD.getInt(tree); + } + catch (IllegalAccessException e) { + throw new RuntimeException(e); + } + } + + + private List<Comment> comments; + private final JCCompilationUnit cu; + private boolean newLine = true; + + public PrettyCommentsPrinter(Writer out, List<Comment> comments, JCCompilationUnit cu) { + this.out = out; + this.comments = comments; + this.cu = cu; + } + + private int endPos(JCTree tree) { + return tree.getEndPosition(cu.endPositions); + } + + private void consumeComments(int till) throws IOException { + boolean shouldIndent = !newLine; + while (comments.nonEmpty() && comments.head.pos < till) { + if (newLine) { + align(); + } + print(comments.head.content); + println(); + comments = comments.tail; + } + if (newLine && shouldIndent) { + align(); + } + } + + /** The output stream on which trees are printed. + */ + Writer out; + + /** Indentation width (can be reassigned from outside). + */ + public int width = 4; + + /** The current left margin. + */ + int lmargin = 0; + + /** The enclosing class name. + */ + Name enclClassName; + + /** A hashtable mapping trees to their documentation comments + * (can be null) + */ + Map<JCTree, String> docComments = null; + + /** Align code to be indented to left margin. + */ + void align() throws IOException { + newLine = false; + for (int i = 0; i < lmargin; i++) out.write(" "); + } + + /** Increase left margin by indentation width. + */ + void indent() { + lmargin = lmargin + width; + } + + /** Decrease left margin by indentation width. + */ + void undent() { + lmargin = lmargin - width; + } + + /** Enter a new precedence level. Emit a `(' if new precedence level + * is less than precedence level so far. + * @param contextPrec The precedence level in force so far. + * @param ownPrec The new precedence level. + */ + void open(int contextPrec, int ownPrec) throws IOException { + if (ownPrec < contextPrec) out.write("("); + } + + /** Leave precedence level. Emit a `(' if inner precedence level + * is less than precedence level we revert to. + * @param contextPrec The precedence level we revert to. + * @param ownPrec The inner precedence level. + */ + void close(int contextPrec, int ownPrec) throws IOException { + if (ownPrec < contextPrec) out.write(")"); + } + + /** Print string, replacing all non-ascii character with unicode escapes. + */ + public void print(Object s) throws IOException { + newLine = false; + out.write(Convert.escapeUnicode(s.toString())); + } + + /** Print new line. + */ + public void println() throws IOException { + newLine = true; + out.write(lineSep); + } + + String lineSep = System.getProperty("line.separator"); + + /************************************************************************** + * Traversal methods + *************************************************************************/ + + /** Exception to propogate IOException through visitXXX methods */ + private static class UncheckedIOException extends Error { + static final long serialVersionUID = -4032692679158424751L; + UncheckedIOException(IOException e) { + super(e.getMessage(), e); + } + } + + /** Visitor argument: the current precedence level. + */ + int prec; + + /** Visitor method: print expression tree. + * @param prec The current precedence level. + */ + public void printExpr(JCTree tree, int prec) throws IOException { + + int prevPrec = this.prec; + try { + this.prec = prec; + if (tree == null) print("/*missing*/"); + else { + consumeComments(tree.pos); + tree.accept(this); + consumeComments(endPos(tree)); + } + } catch (UncheckedIOException ex) { + IOException e = new IOException(ex.getMessage()); + e.initCause(ex); + throw e; + } finally { + this.prec = prevPrec; + } + } + + /** Derived visitor method: print expression tree at minimum precedence level + * for expression. + */ + public void printExpr(JCTree tree) throws IOException { + printExpr(tree, TreeInfo.noPrec); + } + + /** Derived visitor method: print statement tree. + */ + public void printStat(JCTree tree) throws IOException { + printExpr(tree, TreeInfo.notExpression); + } + + /** Derived visitor method: print list of expression trees, separated by given string. + * @param sep the separator string + */ + public <T extends JCTree> void printExprs(List<T> trees, String sep) throws IOException { + if (trees.nonEmpty()) { + printExpr(trees.head); + for (List<T> l = trees.tail; l.nonEmpty(); l = l.tail) { + print(sep); + printExpr(l.head); + } + } + } + + /** Derived visitor method: print list of expression trees, separated by commas. + */ + public <T extends JCTree> void printExprs(List<T> trees) throws IOException { + printExprs(trees, ", "); + } + + /** Derived visitor method: print list of statements, each on a separate line. + */ + public void printStats(List<? extends JCTree> trees) throws IOException { + for (List<? extends JCTree> l = trees; l.nonEmpty(); l = l.tail) { + align(); + printStat(l.head); + println(); + } + } + + /** Print a set of modifiers. + */ + public void printFlags(long flags) throws IOException { + if ((flags & SYNTHETIC) != 0) print("/*synthetic*/ "); + print(TreeInfo.flagNames(flags)); + if ((flags & StandardFlags) != 0) print(" "); + if ((flags & ANNOTATION) != 0) print("@"); + } + + public void printAnnotations(List<JCAnnotation> trees) throws IOException { + for (List<JCAnnotation> l = trees; l.nonEmpty(); l = l.tail) { + printStat(l.head); + println(); + align(); + } + } + + /** Print documentation comment, if it exists + * @param tree The tree for which a documentation comment should be printed. + */ + public void printDocComment(JCTree tree) throws IOException { + if (docComments != null) { + String dc = docComments.get(tree); + if (dc != null) { + print("/**"); println(); + int pos = 0; + int endpos = lineEndPos(dc, pos); + while (pos < dc.length()) { + align(); + print(" *"); + if (pos < dc.length() && dc.charAt(pos) > ' ') print(" "); + print(dc.substring(pos, endpos)); println(); + pos = endpos + 1; + endpos = lineEndPos(dc, pos); + } + align(); print(" */"); println(); + align(); + } + } + } +//where + static int lineEndPos(String s, int start) { + int pos = s.indexOf('\n', start); + if (pos < 0) pos = s.length(); + return pos; + } + + /** If type parameter list is non-empty, print it enclosed in "<...>" brackets. + */ + public void printTypeParameters(List<JCTypeParameter> trees) throws IOException { + if (trees.nonEmpty()) { + print("<"); + printExprs(trees); + print(">"); + } + } + + /** Print a block. + */ + public void printBlock(List<? extends JCTree> stats, JCTree container) throws IOException { + print("{"); + println(); + indent(); + printStats(stats); + consumeComments(endPos(container)); + undent(); + align(); + print("}"); + } + + /** Print a block. + */ + public void printEnumBody(List<JCTree> stats) throws IOException { + print("{"); + println(); + indent(); + boolean first = true; + for (List<JCTree> l = stats; l.nonEmpty(); l = l.tail) { + if (isEnumerator(l.head)) { + if (!first) { + print(","); + println(); + } + align(); + printStat(l.head); + first = false; + } + } + print(";"); + println(); + for (List<JCTree> l = stats; l.nonEmpty(); l = l.tail) { + if (!isEnumerator(l.head)) { + align(); + printStat(l.head); + println(); + } + } + undent(); + align(); + print("}"); + } + + /** Is the given tree an enumerator definition? */ + boolean isEnumerator(JCTree t) { + return getTag(t) == JCTree.VARDEF && (((JCVariableDecl) t).mods.flags & ENUM) != 0; + } + + /** Print unit consisting of package clause and import statements in toplevel, + * followed by class definition. if class definition == null, + * print all definitions in toplevel. + * @param tree The toplevel tree + * @param cdef The class definition, which is assumed to be part of the + * toplevel tree. + */ + public void printUnit(JCCompilationUnit tree, JCClassDecl cdef) throws IOException { + docComments = tree.docComments; + printDocComment(tree); + if (tree.pid != null) { + print("package "); + printExpr(tree.pid); + print(";"); + println(); + } + boolean firstImport = true; + for (List<JCTree> l = tree.defs; + l.nonEmpty() && (cdef == null || getTag(l.head) == JCTree.IMPORT); + l = l.tail) { + if (getTag(l.head) == JCTree.IMPORT) { + JCImport imp = (JCImport)l.head; + Name name = TreeInfo.name(imp.qualid); + if (name == name.table.asterisk || + cdef == null || + isUsed(TreeInfo.symbol(imp.qualid), cdef)) { + if (firstImport) { + firstImport = false; + println(); + } + printStat(imp); + } + } else { + printStat(l.head); + } + } + if (cdef != null) { + printStat(cdef); + println(); + } + } + // where + boolean isUsed(final Symbol t, JCTree cdef) { + class UsedVisitor extends TreeScanner { + public void scan(JCTree tree) { + if (tree!=null && !result) tree.accept(this); + } + boolean result = false; + public void visitIdent(JCIdent tree) { + if (tree.sym == t) result = true; + } + } + UsedVisitor v = new UsedVisitor(); + v.scan(cdef); + return v.result; + } + + /************************************************************************** + * Visitor methods + *************************************************************************/ + + public void visitTopLevel(JCCompilationUnit tree) { + try { + printUnit(tree, null); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitImport(JCImport tree) { + try { + print("import "); + if (tree.staticImport) print("static "); + printExpr(tree.qualid); + print(";"); + println(); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitClassDef(JCClassDecl tree) { + try { + consumeComments(tree.pos); + println(); align(); + printDocComment(tree); + printAnnotations(tree.mods.annotations); + printFlags(tree.mods.flags & ~INTERFACE); + Name enclClassNamePrev = enclClassName; + enclClassName = tree.name; + if ((tree.mods.flags & INTERFACE) != 0) { + print("interface " + tree.name); + printTypeParameters(tree.typarams); + if (tree.implementing.nonEmpty()) { + print(" extends "); + printExprs(tree.implementing); + } + } else { + if ((tree.mods.flags & ENUM) != 0) + print("enum " + tree.name); + else + print("class " + tree.name); + printTypeParameters(tree.typarams); + if (tree.extending != null) { + print(" extends "); + printExpr(tree.extending); + } + if (tree.implementing.nonEmpty()) { + print(" implements "); + printExprs(tree.implementing); + } + } + print(" "); + if ((tree.mods.flags & ENUM) != 0) { + printEnumBody(tree.defs); + } else { + printBlock(tree.defs, tree); + } + enclClassName = enclClassNamePrev; + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitMethodDef(JCMethodDecl tree) { + try { + // when producing source output, omit anonymous constructors + if (tree.name == tree.name.table.init && + enclClassName == null) return; + println(); align(); + printDocComment(tree); + printExpr(tree.mods); + printTypeParameters(tree.typarams); + if (tree.name == tree.name.table.init) { + print(enclClassName != null ? enclClassName : tree.name); + } else { + printExpr(tree.restype); + print(" " + tree.name); + } + print("("); + printExprs(tree.params); + print(")"); + if (tree.thrown.nonEmpty()) { + print(" throws "); + printExprs(tree.thrown); + } + if (tree.body != null) { + print(" "); + printStat(tree.body); + } else { + print(";"); + } + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitVarDef(JCVariableDecl tree) { + try { + if (docComments != null && docComments.get(tree) != null) { + println(); align(); + } + printDocComment(tree); + if ((tree.mods.flags & ENUM) != 0) { + print("/*public static final*/ "); + print(tree.name); + if (tree.init != null) { + print(" /* = "); + printExpr(tree.init); + print(" */"); + } + } else { + printExpr(tree.mods); + if ((tree.mods.flags & VARARGS) != 0) { + printExpr(((JCArrayTypeTree) tree.vartype).elemtype); + print("... " + tree.name); + } else { + printExpr(tree.vartype); + print(" " + tree.name); + } + if (tree.init != null) { + print(" = "); + printExpr(tree.init); + } + if (prec == TreeInfo.notExpression) print(";"); + } + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitSkip(JCSkip tree) { + try { + print(";"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitBlock(JCBlock tree) { + try { + consumeComments(tree.pos); + printFlags(tree.flags); + printBlock(tree.stats, tree); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitDoLoop(JCDoWhileLoop tree) { + try { + print("do "); + printStat(tree.body); + align(); + print(" while "); + if (getTag(tree.cond) == JCTree.PARENS) { + printExpr(tree.cond); + } else { + print("("); + printExpr(tree.cond); + print(")"); + } + print(";"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitWhileLoop(JCWhileLoop tree) { + try { + print("while "); + if (getTag(tree.cond) == JCTree.PARENS) { + printExpr(tree.cond); + } else { + print("("); + printExpr(tree.cond); + print(")"); + } + print(" "); + printStat(tree.body); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitForLoop(JCForLoop tree) { + try { + print("for ("); + if (tree.init.nonEmpty()) { + if (getTag(tree.init.head) == JCTree.VARDEF) { + printExpr(tree.init.head); + for (List<JCStatement> l = tree.init.tail; l.nonEmpty(); l = l.tail) { + JCVariableDecl vdef = (JCVariableDecl)l.head; + print(", " + vdef.name + " = "); + printExpr(vdef.init); + } + } else { + printExprs(tree.init); + } + } + print("; "); + if (tree.cond != null) printExpr(tree.cond); + print("; "); + printExprs(tree.step); + print(") "); + printStat(tree.body); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitForeachLoop(JCEnhancedForLoop tree) { + try { + print("for ("); + printExpr(tree.var); + print(" : "); + printExpr(tree.expr); + print(") "); + printStat(tree.body); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitLabelled(JCLabeledStatement tree) { + try { + print(tree.label + ": "); + printStat(tree.body); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitSwitch(JCSwitch tree) { + try { + print("switch "); + if (getTag(tree.selector) == JCTree.PARENS) { + printExpr(tree.selector); + } else { + print("("); + printExpr(tree.selector); + print(")"); + } + print(" {"); + println(); + printStats(tree.cases); + align(); + print("}"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitCase(JCCase tree) { + try { + if (tree.pat == null) { + print("default"); + } else { + print("case "); + printExpr(tree.pat); + } + print(": "); + println(); + indent(); + printStats(tree.stats); + undent(); + align(); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitSynchronized(JCSynchronized tree) { + try { + print("synchronized "); + if (getTag(tree.lock) == JCTree.PARENS) { + printExpr(tree.lock); + } else { + print("("); + printExpr(tree.lock); + print(")"); + } + print(" "); + printStat(tree.body); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitTry(JCTry tree) { + try { + print("try "); + printStat(tree.body); + for (List<JCCatch> l = tree.catchers; l.nonEmpty(); l = l.tail) { + printStat(l.head); + } + if (tree.finalizer != null) { + print(" finally "); + printStat(tree.finalizer); + } + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitCatch(JCCatch tree) { + try { + print(" catch ("); + printExpr(tree.param); + print(") "); + printStat(tree.body); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitConditional(JCConditional tree) { + try { + open(prec, TreeInfo.condPrec); + printExpr(tree.cond, TreeInfo.condPrec); + print(" ? "); + printExpr(tree.truepart, TreeInfo.condPrec); + print(" : "); + printExpr(tree.falsepart, TreeInfo.condPrec); + close(prec, TreeInfo.condPrec); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitIf(JCIf tree) { + try { + print("if "); + if (getTag(tree.cond) == JCTree.PARENS) { + printExpr(tree.cond); + } else { + print("("); + printExpr(tree.cond); + print(")"); + } + print(" "); + printStat(tree.thenpart); + if (tree.elsepart != null) { + print(" else "); + printStat(tree.elsepart); + } + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitExec(JCExpressionStatement tree) { + try { + printExpr(tree.expr); + if (prec == TreeInfo.notExpression) print(";"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitBreak(JCBreak tree) { + try { + print("break"); + if (tree.label != null) print(" " + tree.label); + print(";"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitContinue(JCContinue tree) { + try { + print("continue"); + if (tree.label != null) print(" " + tree.label); + print(";"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitReturn(JCReturn tree) { + try { + print("return"); + if (tree.expr != null) { + print(" "); + printExpr(tree.expr); + } + print(";"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitThrow(JCThrow tree) { + try { + print("throw "); + printExpr(tree.expr); + print(";"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitAssert(JCAssert tree) { + try { + print("assert "); + printExpr(tree.cond); + if (tree.detail != null) { + print(" : "); + printExpr(tree.detail); + } + print(";"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitApply(JCMethodInvocation tree) { + try { + if (!tree.typeargs.isEmpty()) { + if (getTag(tree.meth) == JCTree.SELECT) { + JCFieldAccess left = (JCFieldAccess)tree.meth; + printExpr(left.selected); + print(".<"); + printExprs(tree.typeargs); + print(">" + left.name); + } else { + print("<"); + printExprs(tree.typeargs); + print(">"); + printExpr(tree.meth); + } + } else { + printExpr(tree.meth); + } + print("("); + printExprs(tree.args); + print(")"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitNewClass(JCNewClass tree) { + try { + if (tree.encl != null) { + printExpr(tree.encl); + print("."); + } + print("new "); + if (!tree.typeargs.isEmpty()) { + print("<"); + printExprs(tree.typeargs); + print(">"); + } + printExpr(tree.clazz); + print("("); + printExprs(tree.args); + print(")"); + if (tree.def != null) { + Name enclClassNamePrev = enclClassName; + enclClassName = + tree.def.name != null ? tree.def.name : + tree.type != null && tree.type.tsym.name != tree.type.tsym.name.table.empty ? tree.type.tsym.name : + null; + if ((tree.def.mods.flags & Flags.ENUM) != 0) print("/*enum*/"); + printBlock(tree.def.defs, tree.def); + enclClassName = enclClassNamePrev; + } + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitNewArray(JCNewArray tree) { + try { + if (tree.elemtype != null) { + print("new "); + JCTree elem = tree.elemtype; + if (elem instanceof JCArrayTypeTree) + printBaseElementType((JCArrayTypeTree) elem); + else + printExpr(elem); + for (List<JCExpression> l = tree.dims; l.nonEmpty(); l = l.tail) { + print("["); + printExpr(l.head); + print("]"); + } + if (elem instanceof JCArrayTypeTree) + printBrackets((JCArrayTypeTree) elem); + } + if (tree.elems != null) { + if (tree.elemtype != null) print("[]"); + print("{"); + printExprs(tree.elems); + print("}"); + } + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitParens(JCParens tree) { + try { + print("("); + printExpr(tree.expr); + print(")"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitAssign(JCAssign tree) { + try { + open(prec, TreeInfo.assignPrec); + printExpr(tree.lhs, TreeInfo.assignPrec + 1); + print(" = "); + printExpr(tree.rhs, TreeInfo.assignPrec); + close(prec, TreeInfo.assignPrec); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public String operatorName(int tag) { + switch(tag) { + case JCTree.POS: return "+"; + case JCTree.NEG: return "-"; + case JCTree.NOT: return "!"; + case JCTree.COMPL: return "~"; + case JCTree.PREINC: return "++"; + case JCTree.PREDEC: return "--"; + case JCTree.POSTINC: return "++"; + case JCTree.POSTDEC: return "--"; + case JCTree.NULLCHK: return "<*nullchk*>"; + case JCTree.OR: return "||"; + case JCTree.AND: return "&&"; + case JCTree.EQ: return "=="; + case JCTree.NE: return "!="; + case JCTree.LT: return "<"; + case JCTree.GT: return ">"; + case JCTree.LE: return "<="; + case JCTree.GE: return ">="; + case JCTree.BITOR: return "|"; + case JCTree.BITXOR: return "^"; + case JCTree.BITAND: return "&"; + case JCTree.SL: return "<<"; + case JCTree.SR: return ">>"; + case JCTree.USR: return ">>>"; + case JCTree.PLUS: return "+"; + case JCTree.MINUS: return "-"; + case JCTree.MUL: return "*"; + case JCTree.DIV: return "/"; + case JCTree.MOD: return "%"; + default: throw new Error(); + } + } + + public void visitAssignop(JCAssignOp tree) { + try { + open(prec, TreeInfo.assignopPrec); + printExpr(tree.lhs, TreeInfo.assignopPrec + 1); + print(" " + operatorName(getTag(tree) - JCTree.ASGOffset) + "= "); + printExpr(tree.rhs, TreeInfo.assignopPrec); + close(prec, TreeInfo.assignopPrec); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitUnary(JCUnary tree) { + try { + int ownprec = TreeInfo.opPrec(getTag(tree)); + String opname = operatorName(getTag(tree)); + open(prec, ownprec); + if (getTag(tree) <= JCTree.PREDEC) { + print(opname); + printExpr(tree.arg, ownprec); + } else { + printExpr(tree.arg, ownprec); + print(opname); + } + close(prec, ownprec); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitBinary(JCBinary tree) { + try { + int ownprec = TreeInfo.opPrec(getTag(tree)); + String opname = operatorName(getTag(tree)); + open(prec, ownprec); + printExpr(tree.lhs, ownprec); + print(" " + opname + " "); + printExpr(tree.rhs, ownprec + 1); + close(prec, ownprec); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitTypeCast(JCTypeCast tree) { + try { + open(prec, TreeInfo.prefixPrec); + print("("); + printExpr(tree.clazz); + print(")"); + printExpr(tree.expr, TreeInfo.prefixPrec); + close(prec, TreeInfo.prefixPrec); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitTypeTest(JCInstanceOf tree) { + try { + open(prec, TreeInfo.ordPrec); + printExpr(tree.expr, TreeInfo.ordPrec); + print(" instanceof "); + printExpr(tree.clazz, TreeInfo.ordPrec + 1); + close(prec, TreeInfo.ordPrec); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitIndexed(JCArrayAccess tree) { + try { + printExpr(tree.indexed, TreeInfo.postfixPrec); + print("["); + printExpr(tree.index); + print("]"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitSelect(JCFieldAccess tree) { + try { + printExpr(tree.selected, TreeInfo.postfixPrec); + print("." + tree.name); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitIdent(JCIdent tree) { + try { + print(tree.name); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitLiteral(JCLiteral tree) { + try { + switch (tree.typetag) { + case TypeTags.INT: + print(tree.value.toString()); + break; + case TypeTags.LONG: + print(tree.value + "L"); + break; + case TypeTags.FLOAT: + print(tree.value + "F"); + break; + case TypeTags.DOUBLE: + print(tree.value.toString()); + break; + case TypeTags.CHAR: + print("\'" + + Convert.quote( + String.valueOf((char)((Number)tree.value).intValue())) + + "\'"); + break; + case TypeTags.BOOLEAN: + print(((Number)tree.value).intValue() == 1 ? "true" : "false"); + break; + case TypeTags.BOT: + print("null"); + break; + default: + print("\"" + Convert.quote(tree.value.toString()) + "\""); + break; + } + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitTypeIdent(JCPrimitiveTypeTree tree) { + try { + switch(tree.typetag) { + case TypeTags.BYTE: + print("byte"); + break; + case TypeTags.CHAR: + print("char"); + break; + case TypeTags.SHORT: + print("short"); + break; + case TypeTags.INT: + print("int"); + break; + case TypeTags.LONG: + print("long"); + break; + case TypeTags.FLOAT: + print("float"); + break; + case TypeTags.DOUBLE: + print("double"); + break; + case TypeTags.BOOLEAN: + print("boolean"); + break; + case TypeTags.VOID: + print("void"); + break; + default: + print("error"); + break; + } + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitTypeArray(JCArrayTypeTree tree) { + try { + printBaseElementType(tree); + printBrackets(tree); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + // Prints the inner element type of a nested array + private void printBaseElementType(JCArrayTypeTree tree) throws IOException { + JCTree elem = tree.elemtype; + while (elem instanceof JCWildcard) + elem = ((JCWildcard) elem).inner; + if (elem instanceof JCArrayTypeTree) + printBaseElementType((JCArrayTypeTree) elem); + else + printExpr(elem); + } + + // prints the brackets of a nested array in reverse order + private void printBrackets(JCArrayTypeTree tree) throws IOException { + JCTree elem; + while (true) { + elem = tree.elemtype; + print("[]"); + if (!(elem instanceof JCArrayTypeTree)) break; + tree = (JCArrayTypeTree) elem; + } + } + + public void visitTypeApply(JCTypeApply tree) { + try { + printExpr(tree.clazz); + print("<"); + printExprs(tree.arguments); + print(">"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitTypeParameter(JCTypeParameter tree) { + try { + print(tree.name); + if (tree.bounds.nonEmpty()) { + print(" extends "); + printExprs(tree.bounds, " & "); + } + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + @Override + public void visitWildcard(JCWildcard tree) { + try { + print(tree.kind); + + if (tree.getKind() != Tree.Kind.UNBOUNDED_WILDCARD) + printExpr(tree.inner); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitTypeBoundKind(TypeBoundKind tree) { + try { + print(String.valueOf(tree.kind)); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitErroneous(JCErroneous tree) { + try { + print("(ERROR)"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitLetExpr(LetExpr tree) { + try { + print("(let " + tree.defs + " in " + tree.expr + ")"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitModifiers(JCModifiers mods) { + try { + printAnnotations(mods.annotations); + printFlags(mods.flags); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitAnnotation(JCAnnotation tree) { + try { + print("@"); + printExpr(tree.annotationType); + print("("); + printExprs(tree.args); + print(")"); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } + + public void visitTree(JCTree tree) { + try { + print("(UNKNOWN: " + tree + ")"); + println(); + } catch (IOException e) { + throw new UncheckedIOException(e); + } + } +} diff --git a/src/delombok/lombok/delombok/PrettyPrinter.java b/src/delombok/lombok/delombok/PrettyPrinter.java new file mode 100644 index 00000000..2da0d9f4 --- /dev/null +++ b/src/delombok/lombok/delombok/PrettyPrinter.java @@ -0,0 +1,199 @@ +/* + * Copyright © 2009 Reinier Zwitserloot and Roel Spilker. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +package lombok.delombok; + +import java.io.BufferedReader; +import java.io.FileReader; +import java.io.StringWriter; +import java.nio.CharBuffer; + +import com.sun.source.tree.Tree; +import com.sun.source.tree.Tree.Kind; +import com.sun.source.util.SimpleTreeVisitor; +import com.sun.source.util.TreeScanner; +import com.sun.tools.javac.main.JavaCompiler; +import com.sun.tools.javac.main.OptionName; +import com.sun.tools.javac.parser.Scanner; +import com.sun.tools.javac.tree.JCTree; +import com.sun.tools.javac.tree.JCTree.JCCompilationUnit; +import com.sun.tools.javac.util.Context; +import com.sun.tools.javac.util.List; +import com.sun.tools.javac.util.Options; + +public class PrettyPrinter { + + private final Context context = new Context(); + private final JavaCompiler compiler; + + public static void main(String[] args) throws Exception { + if (args.length == 0) { +// System.out.println("Usage: java %s <file1> <file2>..."); + args = new String[] {"tests/foo/WithComments.java"}; + } + PrettyPrinter prettyPrinter = new PrettyPrinter(); + for (String fileName : args) { + prettyPrinter.print(fileName); + } + } + + public PrettyPrinter() { + Options.instance(context).put(OptionName.ENCODING, "utf-8"); + PrettyDocCommentScanner.Factory.preRegister(context); + compiler = new JavaCompiler(context) { + @Override + protected boolean keepComments() { + return true; + } + }; + compiler.genEndPos = true; + } + + public static class Comments { +// private static Key<Comments> commentsKey = new Key<Comments>(); + + private List<Comment> comments = List.nil(); + + void add(int pos, String content) { + comments = comments.append(new Comment(pos, content)); + } + } + + private void print(String fileName) throws Exception { + + Comments comments = new Comments(); + context.put(Comments.class, comments); + + @SuppressWarnings("deprecation") + final JCCompilationUnit cu = compiler.parse(fileName); + + StringWriter writer = new StringWriter(); + cu.accept(new PrettyCommentsPrinter(writer, comments.comments, cu)); + System.out.printf("####### Original source of %s #######\n", fileName); + BufferedReader reader = new BufferedReader(new FileReader(fileName)); + String line = null; + while ((line = reader.readLine()) != null) { + System.out.println(line); + } + reader.close(); + + System.out.printf("####### Generated source of %s #######\n", fileName); + System.out.println(writer); + + printNodes(fileName, cu); + System.out.printf("####### Comments of %s #######\n", fileName); + for (Comment comment : comments.comments) { + System.out.println(comment.summary()); + } + System.out.printf("####### End of %s #######\n\n", fileName); + } + + private void printNodes(String fileName, final JCCompilationUnit cu) { + System.out.printf("####### Nodes of %s #######\n", fileName); + cu.accept(new TreeScanner<Void, Void>(){ + @Override + public Void scan(Tree node, Void p) { + if (node == null) { + return null; + } + node.accept(new SimpleTreeVisitor<Void, Void>(){ + @Override + protected Void defaultAction(Tree node, Void p) { + if (node == null) { + return null; + } + JCTree tree = (JCTree)node; + Kind kind = tree.getKind(); + System.out.print(kind.toString() + " " + tree.pos + " - " + tree.getEndPosition(cu.endPositions)); + switch (kind) { + case IDENTIFIER: + case PRIMITIVE_TYPE: + case MODIFIERS: + System.out.print("[" + tree.toString() + "]"); + break; + } + System.out.println(); + return null; + } + }, null); + return super.scan(node, p); + } + }, null); + } + + public static class PrettyDocCommentScanner extends Scanner { + + private final Comments comments; + + /** A factory for creating scanners. */ + public static class Factory extends Scanner.Factory { + + private final Context context; + + public static void preRegister(final Context context) { + context.put(scannerFactoryKey, new Context.Factory<Scanner.Factory>() { + public Factory make() { + return new Factory(context); + } + }); + } + + /** Create a new scanner factory. */ + protected Factory(Context context) { + super(context); + this.context = context; + } + + @Override + public Scanner newScanner(CharSequence input) { + if (input instanceof CharBuffer) { + return new PrettyDocCommentScanner(this, (CharBuffer)input, context.get(Comments.class)); + } + else { + char[] array = input.toString().toCharArray(); + return newScanner(array, array.length); + } + } + + @Override + public Scanner newScanner(char[] input, int inputLength) { + return new PrettyDocCommentScanner(this, input, inputLength, context.get(Comments.class)); + } + } + + + public PrettyDocCommentScanner(PrettyPrinter.PrettyDocCommentScanner.Factory factory, CharBuffer charBuffer, Comments comments) { + super(factory, charBuffer); + this.comments = comments; + } + + + public PrettyDocCommentScanner(PrettyPrinter.PrettyDocCommentScanner.Factory factory, char[] input, int inputLength, Comments comments) { + super(factory, input, inputLength); + this.comments = comments; + } + + @Override + protected void processComment(CommentStyle style) { + comments.add(pos(), new String(getRawCharacters(pos(), endPos()))); + } + } +} |