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Groovy: A powerful, dynamic language for the JVM
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.codehaus.groovy.antlr.treewalker;
import java.io.PrintStream;
import java.util.Stack;
import antlr.collections.AST;
import org.codehaus.groovy.antlr.GroovySourceAST;
import org.codehaus.groovy.antlr.parser.GroovyTokenTypes;
/**
* An antlr AST visitor that prints groovy source code for each visited node
* to the supplied PrintStream.
*
* @author Jeremy Rayner
*/
public class SourcePrinter extends VisitorAdapter {
private final String[] tokenNames;
private int tabLevel;
private int lastLinePrinted;
private final boolean newLines;
protected final PrintStream out;
private String className;
private final Stack stack;
private int stringConstructorCounter;
/**
* A visitor that prints groovy source code for each node visited.
* @param out where to print the source code to
* @param tokenNames an array of token names from antlr
*/
public SourcePrinter(PrintStream out,String[] tokenNames) {
this(out,tokenNames,true);
}
/**
* A visitor that prints groovy source code for each node visited.
* @param out where to print the source code to
* @param tokenNames an array of token names from antlr
* @param newLines output newline character
*/
public SourcePrinter(PrintStream out,String[] tokenNames, boolean newLines) {
this.tokenNames = tokenNames;
tabLevel = 0;
lastLinePrinted = 0;
this.out = out;
this.newLines = newLines;
this.stack = new Stack();
}
public void visitAbstract(GroovySourceAST t, int visit) {
print(t,visit,"abstract ",null,null);
}
public void visitAnnotation(GroovySourceAST t, int visit) {
if (visit == OPENING_VISIT) {
print(t,visit,"@");
}
if (visit == SECOND_VISIT) {
print(t,visit,"(");
}
if (visit == SUBSEQUENT_VISIT) {
print(t,visit,", ");
}
if (visit == CLOSING_VISIT) {
if (t.getNumberOfChildren() > 1) {
print(t,visit,") ");
} else {
print(t,visit," ");
}
}
}
public void visitAnnotations(GroovySourceAST t, int visit) {
// do nothing
}
public void visitAnnotationDef(GroovySourceAST t,int visit) {
print(t,visit,"@interface ",null,null);
}
public void visitAnnotationFieldDef(GroovySourceAST t, int visit) {
print(t,visit,"() ","default ",null);
}
public void visitAnnotationMemberValuePair(GroovySourceAST t, int visit) {
print(t,visit," = ",null,null);
}
public void visitArrayDeclarator(GroovySourceAST t, int visit) {
//int primes = new int(5 )
if (getParentNode().getType() == GroovyTokenTypes.TYPE ||
getParentNode().getType() == GroovyTokenTypes.TYPECAST) { // ugly hack
// type definition, i.e. int[] x;
print(t,visit,null,null,"[]");
} else {
// usually in new, i.e. def y = new int[5];
print(t,visit,"[",null,"]");
}
}
public void visitAssign(GroovySourceAST t,int visit) {
print(t,visit," = ",null,null);
}
// visitAt() ...
// token type 'AT' should never be visited, as annotation definitions and usage, and
// direct field access should have all moved this token out of the way. No test needed.
// one of the BAND tokens is actually replaced by TYPE_UPPER_BOUNDS (e.g. class Foo {T t} )
public void visitBand(GroovySourceAST t, int visit) {
print(t,visit," & ",null,null);
}
public void visitBandAssign(GroovySourceAST t,int visit) {
print(t,visit," &= ",null,null);
}
// visitBigSuffix() ...
// token type BIG_SUFFIX never created/visited, NUM_BIG_INT, NUM_BIG_DECIMAL instead...
// visitBlock() ...
// token type BLOCK never created/visited, see CLOSABLE_BLOCK etc...
public void visitBnot(GroovySourceAST t, int visit) {
print(t,visit,"~",null,null);
}
// Note: old closure syntax using BOR is deprecated, and also never creates/visits a BOR node
public void visitBor(GroovySourceAST t, int visit) {
print(t,visit," | ",null,null);
}
public void visitBorAssign(GroovySourceAST t,int visit) {
print(t,visit," |= ",null,null);
}
public void visitBsr(GroovySourceAST t, int visit) {
print(t,visit," >>> ",null,null);
}
public void visitBsrAssign(GroovySourceAST t,int visit) {
print(t,visit," >>>= ",null,null);
}
public void visitBxor(GroovySourceAST t, int visit) {
print(t,visit," ^ ",null,null);
}
public void visitBxorAssign(GroovySourceAST t,int visit) {
print(t,visit," ^= ",null,null);
}
public void visitCaseGroup(GroovySourceAST t, int visit) {
if (visit == OPENING_VISIT) {
tabLevel++;
}
if (visit == CLOSING_VISIT) {
tabLevel--;
}
}
public void visitClassDef(GroovySourceAST t,int visit) {
print(t,visit,"class ",null,null);
if (visit == OPENING_VISIT) {
// store name of class away for use in constructor ident
className = t.childOfType(GroovyTokenTypes.IDENT).getText();
}
}
public void visitClosedBlock(GroovySourceAST t, int visit) {
printUpdatingTabLevel(t,visit,"{","-> ","}");
}
public void visitClosureList(GroovySourceAST t, int visit) {
print(t,visit,"(","; ",")");
}
// visitClosureOp ...
// token type CLOSABLE_BLOCK_OP never created/visited, see CLOSABLE_BLOCK...
// visitColon ...
// token type COLON never created/visited, see LABELED_STAT, FOR_IN_ITERABLE,
// ASSERT, CASE, QUESTION, MAP_CONSTRUCTOR, LABELED_ARG, SPREAD_MAP_ARG
// visitComma ...
// token type COMMA never created/visited,
// see TYPE_ARGUMENTS, ANNOTATION, many others ...
public void visitCompareTo(GroovySourceAST t,int visit) {
print(t,visit," <=> ",null,null);
}
public void visitCtorCall(GroovySourceAST t,int visit) {
printUpdatingTabLevel(t,visit,"this("," ",")");
}
public void visitCtorIdent(GroovySourceAST t, int visit) {
// use name of class for constructor from the class definition
print(t,visit,className,null,null);
}
public void visitDec(GroovySourceAST t, int visit) {
print(t,visit,"--",null,null);
}
// visitDigit ...
// never created/visited
public void visitDiv(GroovySourceAST t, int visit) {
print(t,visit," / ",null,null);
}
public void visitDivAssign(GroovySourceAST t,int visit) {
print(t,visit," /= ",null,null);
}
// visitDollar ...
// token type DOLLAR never created/visited, see SCOPE_ESCAPE instead
public void visitDot(GroovySourceAST t,int visit) {
print(t,visit,".",null,null);
}
public void visitDynamicMember(GroovySourceAST t, int visit) {
if (t.childOfType(GroovyTokenTypes.STRING_CONSTRUCTOR) == null) {
printUpdatingTabLevel(t,visit,"(",null,")");
}
}
public void visitElist(GroovySourceAST t,int visit) {
if (getParentNode().getType() == GroovyTokenTypes.ENUM_CONSTANT_DEF) {
print(t,visit,"(",", ",")");
} else {
print(t,visit,null,", ",null);
}
}
// visitEmptyStat ...
// token type EMPTY_STAT obsolete and should be removed, never visited/created
public void visitEnumConstantDef(GroovySourceAST t,int visit) {
GroovySourceAST sibling = (GroovySourceAST)t.getNextSibling();
if (sibling != null && sibling.getType() == GroovyTokenTypes.ENUM_CONSTANT_DEF) {
print(t,visit,null,null,", ");
}
}
public void visitEnumDef(GroovySourceAST t,int visit) {
print(t,visit,"enum ",null,null);
}
// visitEof ...
// token type EOF never visited/created
public void visitEqual(GroovySourceAST t,int visit) {
print(t,visit," == ",null,null);
}
// visitExponent ...
// token type EXPONENT only used by lexer, never visited/created
public void visitExpr(GroovySourceAST t,int visit) {
// do nothing
}
public void visitExtendsClause(GroovySourceAST t,int visit) {
if (visit == OPENING_VISIT) {
if (t.getNumberOfChildren() != 0) {
print(t,visit," extends ");
}
}
}
public void visitFinal(GroovySourceAST t, int visit) {
print(t,visit,"final ",null,null);
}
// visitFloatSuffix ... never visited/created see NUM_DOUBLE or NUM_FLOAT instead
public void visitForCondition(GroovySourceAST t, int visit) {
print(t,visit," ; ",null,null);
}
// visitForEachClause ...
// FOR_EACH_CLAUSE obsolete and should be removed, never visited/created
public void visitForInit(GroovySourceAST t, int visit) {
print(t,visit,"(",null,null);
}
public void visitForInIterable(GroovySourceAST t, int visit) {
printUpdatingTabLevel(t,visit,"("," in ",") ");
}
public void visitForIterator(GroovySourceAST t, int visit) {
print(t,visit," ; ",null,")");
}
public void visitGe(GroovySourceAST t, int visit) {
print(t,visit," >= ",null,null);
}
public void visitGt(GroovySourceAST t, int visit) {
print(t,visit," > ",null,null);
}
public void visitIdent(GroovySourceAST t,int visit) {
print(t,visit,t.getText(),null,null);
}
public void visitImplementsClause(GroovySourceAST t,int visit) {
if (visit == OPENING_VISIT) {
if (t.getNumberOfChildren() != 0) {
print(t,visit," implements ");
}
}
if (visit == CLOSING_VISIT) {
//space between classdef and objblock
print(t,visit," ");
}
}
public void visitImplicitParameters(GroovySourceAST t, int visit) {
// do nothing
}
public void visitImport(GroovySourceAST t,int visit) {
print(t,visit,"import ",null,null);
}
public void visitInc(GroovySourceAST t, int visit) {
print(t,visit,"++",null,null);
}
public void visitIndexOp(GroovySourceAST t, int visit) {
printUpdatingTabLevel(t,visit,"[",null,"]");
}
public void visitInterfaceDef(GroovySourceAST t,int visit) {
print(t,visit,"interface ",null,null);
}
public void visitInstanceInit(GroovySourceAST t, int visit) {
// do nothing
}
public void visitLabeledArg(GroovySourceAST t, int visit) {
print(t,visit,":",null,null);
}
public void visitLabeledStat(GroovySourceAST t, int visit) {
print(t,visit,":",null,null);
}
public void visitLand(GroovySourceAST t, int visit) {
print(t,visit," && ",null,null);
}
// visit lbrack()
// token type LBRACK only used inside parser, never visited/created
// visit lcurly()
// token type LCURLY only used inside parser, never visited/created
public void visitLe(GroovySourceAST t, int visit) {
print(t,visit," <= ",null,null);
}
// visitLetter ...
// token type LETTER only used by lexer, never visited/created
public void visitListConstructor(GroovySourceAST t, int visit) {
printUpdatingTabLevel(t,visit,"[",null,"]");
}
public void visitLiteralAs(GroovySourceAST t,int visit) {
print(t,visit," as ",null,null);
}
public void visitLiteralAssert(GroovySourceAST t,int visit) {
if (t.getNumberOfChildren() > 1) {
print(t,visit,"assert ",null," : ");
} else {
print(t,visit,"assert ",null,null);
}
}
public void visitLiteralBoolean(GroovySourceAST t, int visit) {
print(t,visit,"boolean",null,null);
}
public void visitLiteralBreak(GroovySourceAST t, int visit) {
print(t,visit,"break ",null,null);
}
public void visitLiteralByte(GroovySourceAST t, int visit) {
print(t,visit,"byte",null,null);
}
public void visitLiteralCase(GroovySourceAST t, int visit) {
print(t,visit,"case ",null,":");
}
public void visitLiteralCatch(GroovySourceAST t,int visit) {
printUpdatingTabLevel(t, visit, " catch (", null, ") ");
}
public void visitLiteralChar(GroovySourceAST t, int visit) {
print(t,visit,"char",null,null);
}
// visitLiteralClass ...
// token type "class" only used by parser, never visited/created directly
public void visitLiteralContinue(GroovySourceAST t, int visit) {
print(t,visit,"continue ",null,null);
}
// visitLiteralDef ...
// token type "def" only used by parser, never visited/created directly
public void visitLiteralDefault(GroovySourceAST t,int visit) {
print(t,visit,"default",null,":");
}
public void visitLiteralDouble(GroovySourceAST t, int visit) {
print(t,visit,"double",null,null);
}
// visitLiteralElse ...
// token type "else" only used by parser, never visited/created directly
// visitLiteralEnum ...
// token type "enum" only used by parser, never visited/created directly
// visitLiteralExtends
// token type "extends" only used by parser, never visited/created directly
public void visitLiteralFalse(GroovySourceAST t,int visit) {
print(t,visit,"false",null,null);
}
public void visitLiteralFinally(GroovySourceAST t,int visit) {
print(t,visit,"finally ",null,null);
}
public void visitLiteralFloat(GroovySourceAST t,int visit) {
print(t,visit,"float",null,null);
}
public void visitLiteralFor(GroovySourceAST t,int visit) {
print(t,visit,"for ",null,null);
}
public void visitLiteralIf(GroovySourceAST t,int visit) {
// slightly strange as subsequent visit is done after closing visit
printUpdatingTabLevel(t,visit,"if ("," else ",") ");
}
// visitLiteralImplements
// token type "implements" only used by parser, never visited/created directly
// visitLiteralImport
// token type "import" only used by parser, never visited/created directly
public void visitLiteralIn(GroovySourceAST t, int visit) {
print(t,visit," in ",null,null);
}
public void visitLiteralInstanceof(GroovySourceAST t, int visit) {
print(t,visit," instanceof ",null,null);
}
public void visitLiteralInt(GroovySourceAST t,int visit) {
print(t,visit,"int",null,null);
}
// visitLiteralInterface
// token type "interface" only used by parser, never visited/created directly
public void visitLiteralLong(GroovySourceAST t,int visit) {
print(t,visit,"long",null,null);
}
public void visitLiteralNative(GroovySourceAST t,int visit) {
print(t,visit,"native ",null,null);
}
public void visitLiteralNew(GroovySourceAST t,int visit) {
if (t.childOfType(GroovyTokenTypes.ARRAY_DECLARATOR) == null) {
// only print parenthesis if is not of form def x = new int[5]
print(t,visit,"new ","(",")");
} else {
print(t,visit,"new ",null,null);
}
}
public void visitLiteralNull(GroovySourceAST t, int visit) {
print(t,visit,"null",null,null);
}
// visitLiteralPackage
// token type "package" only used by parser, never visited/created directly
public void visitLiteralPrivate(GroovySourceAST t,int visit) {
print(t,visit,"private ",null,null);
}
public void visitLiteralProtected(GroovySourceAST t,int visit) {
print(t,visit,"protected ",null,null);
}
public void visitLiteralPublic(GroovySourceAST t,int visit) {
print(t,visit,"public ",null,null);
}
public void visitLiteralReturn(GroovySourceAST t, int visit) {
print(t,visit,"return ",null,null);
}
public void visitLiteralShort(GroovySourceAST t,int visit) {
print(t,visit,"short",null,null);
}
public void visitLiteralStatic(GroovySourceAST t, int visit) {
print(t,visit,"static ",null,null);
}
public void visitLiteralSuper(GroovySourceAST t, int visit) {
// only visited when calling super() without parentheses, i.e. "super 99" is equivalent to "super(99)"
print(t,visit,"super",null,null);
}
public void visitLiteralSwitch(GroovySourceAST t, int visit) {
if (visit == OPENING_VISIT) {
print(t,visit,"switch (");
tabLevel++;
}
if (visit == SUBSEQUENT_VISIT) {
print(t,visit,") {");
}
if (visit == CLOSING_VISIT) {
tabLevel--;
print(t,visit,"}");
}
}
public void visitLiteralSynchronized(GroovySourceAST t,int visit) {
if (t.getNumberOfChildren() > 0) {
print(t,visit,"synchronized (",null,") ");
} else {
print(t,visit,"synchronized ",null,null);
}
}
public void visitLiteralThis(GroovySourceAST t, int visit) {
print(t,visit,"this",null,null);
}
public void visitLiteralThreadsafe(GroovySourceAST t,int visit) {
print(t,visit,"threadsafe ",null,null);
}
public void visitLiteralThrow(GroovySourceAST t, int visit) {
print(t,visit,"throw ",null,null);
}
public void visitLiteralThrows(GroovySourceAST t, int visit) {
print(t,visit,"throws ",null,null);
}
public void visitLiteralTransient(GroovySourceAST t,int visit) {
print(t,visit,"transient ",null,null);
}
public void visitLiteralTrue(GroovySourceAST t,int visit) {
print(t,visit,"true",null,null);
}
public void visitLiteralTry(GroovySourceAST t,int visit) {
print(t,visit,"try ",null,null);
}
public void visitLiteralVoid(GroovySourceAST t,int visit) {
print(t,visit,"void",null,null);
}
public void visitLiteralVolatile(GroovySourceAST t,int visit) {
print(t,visit,"volatile ",null,null);
}
public void visitLiteralWhile(GroovySourceAST t,int visit) {
printUpdatingTabLevel(t,visit,"while (",null,") ");
}
//deprecated
// public void visitLiteralWith(GroovySourceAST t,int visit) {
// printUpdatingTabLevel(t,visit,"with (",null,") ");
// }
public void visitLnot(GroovySourceAST t, int visit) {
print(t,visit,"!",null,null);
}
// Note: old closure syntax using LOR is deprecated, and also never creates/visits a LOR node
public void visitLor(GroovySourceAST t, int visit) {
print(t,visit," || ",null,null);
}
public void visitLt(GroovySourceAST t, int visit) {
print(t,visit," < ",null,null);
}
public void visitMapConstructor(GroovySourceAST t, int visit) {
if (t.getNumberOfChildren() == 0) {
print(t,visit,"[:]",null,null);
} else {
printUpdatingTabLevel(t,visit,"[",null,"]");
}
}
public void visitMemberPointer(GroovySourceAST t, int visit) {
print(t,visit,".&",null,null);
}
public void visitMethodCall(GroovySourceAST t,int visit) {
if ("".equals(t.getText())) {
printUpdatingTabLevel(t,visit," "," ",null);
} else {
printUpdatingTabLevel(t,visit,"("," ",")");
}
}
public void visitMethodDef(GroovySourceAST t,int visit) {
//do nothing
}
public void visitMinus(GroovySourceAST t,int visit) {
print(t,visit," - ",null,null);
}
public void visitMinusAssign(GroovySourceAST t, int visit) {
print(t,visit," -= ",null,null);
}
// visitMlComment
// multi-line comments are not created on the AST currently.
public void visitMod(GroovySourceAST t, int visit) {
print(t,visit," % ",null,null);
}
public void visitModifiers(GroovySourceAST t,int visit) {
//do nothing
}
public void visitModAssign(GroovySourceAST t, int visit) {
print(t,visit," %= ",null,null);
}
@Override
public void visitMultiCatch(final GroovySourceAST t, final int visit) {
if (visit == CLOSING_VISIT) {
final AST child = t.getFirstChild();
if ("MULTICATCH_TYPES".equals(child.getText())) {
print(t, visit, null, null, " "+child.getNextSibling().getText());
} else {
print(t, visit, null, null, " "+child.getFirstChild().getText());
}
}
}
@Override
public void visitMultiCatchTypes(final GroovySourceAST t, final int visit) {
}
// visitNls
// new lines are used by parser, but are not created on the AST,
// they can be implied by the source code line/column information
// visitNullTreeLookahead
// not used explicitly by parser.
public void visitNotEqual(GroovySourceAST t, int visit) {
print(t,visit," != ",null,null);
}
public void visitNumBigDecimal(GroovySourceAST t,int visit) {
print(t,visit,t.getText(),null,null);
}
public void visitNumBigInt(GroovySourceAST t,int visit) {
print(t,visit,t.getText(),null,null);
}
public void visitNumDouble(GroovySourceAST t,int visit) {
print(t,visit,t.getText(),null,null);
}
public void visitNumInt(GroovySourceAST t,int visit) {
print(t,visit,t.getText(),null,null);
}
public void visitNumFloat(GroovySourceAST t,int visit) {
print(t,visit,t.getText(),null,null);
}
public void visitNumLong(GroovySourceAST t,int visit) {
print(t,visit,t.getText(),null,null);
}
public void visitObjblock(GroovySourceAST t,int visit) {
if (visit == OPENING_VISIT) {
tabLevel++;
print(t,visit,"{");
} else {
tabLevel--;
print(t,visit,"}");
}
}
// visitOneNl
// new lines are used by parser, but are not created on the AST,
// they can be implied by the source code line/column information
public void visitOptionalDot(GroovySourceAST t,int visit) {
print(t,visit,"?.",null,null);
}
public void visitPackageDef(GroovySourceAST t, int visit) {
print(t,visit,"package ",null,null);
}
public void visitParameterDef(GroovySourceAST t,int visit) {
//do nothing
}
public void visitParameters(GroovySourceAST t,int visit) {
if (getParentNode().getType() == GroovyTokenTypes.CLOSABLE_BLOCK) {
printUpdatingTabLevel(t,visit,null,","," ");
} else {
printUpdatingTabLevel(t,visit,"(",", ",") ");
}
}
public void visitPlus(GroovySourceAST t, int visit) {
print(t,visit," + ",null,null);
}
public void visitPlusAssign(GroovySourceAST t, int visit) {
print(t,visit," += ",null,null);
}
public void visitPostDec(GroovySourceAST t, int visit) {
print(t,visit,null,null,"--");
}
public void visitPostInc(GroovySourceAST t, int visit) {
print(t,visit,null,null,"++");
}
public void visitQuestion(GroovySourceAST t, int visit) {
// ternary operator
print(t,visit,"?",":",null);
}
public void visitRangeExclusive(GroovySourceAST t, int visit) {
print(t,visit,"..<",null,null);
}
public void visitRangeInclusive(GroovySourceAST t, int visit) {
print(t,visit,"..",null,null);
}
// visit rbrack()
// token type RBRACK only used inside parser, never visited/created
// visit rcurly()
// token type RCURLY only used inside parser, never visited/created
// visit RegexpCtorEnd
// visit RegexpLiteral
// visit RegexpSymbol
// token types REGEXP_CTOR_END, REGEXP_LITERAL, REGEXP_SYMBOL only used inside lexer
public void visitRegexFind(GroovySourceAST t, int visit) {
print(t,visit," =~ ",null,null);
}
public void visitRegexMatch(GroovySourceAST t, int visit) {
print(t,visit," ==~ ",null,null);
}
// visit rparen()
// token type RPAREN only used inside parser, never visited/created
public void visitSelectSlot(GroovySourceAST t, int visit) {
print(t,visit,"@",null,null);
}
// visit semi()
// SEMI only used inside parser, never visited/created (see visitForCondition(), visitForIterator())
// visit ShComment()
// never visited/created by parser
public void visitSl(GroovySourceAST t, int visit) {
print(t,visit," << ",null,null);
}
public void visitSlAssign(GroovySourceAST t, int visit) {
print(t,visit," <<= ",null,null);
}
public void visitSlist(GroovySourceAST t,int visit) {
if (visit == OPENING_VISIT) {
tabLevel++;
print(t,visit,"{");
} else {
tabLevel--;
print(t,visit,"}");
}
}
// visit SlComment()
// never visited/created by parser
public void visitSpreadArg(GroovySourceAST t,int visit) {
print(t,visit,"*",null,null);
}
public void visitSpreadDot(GroovySourceAST t,int visit) {
print(t,visit,"*.",null,null);
}
public void visitSpreadMapArg(GroovySourceAST t,int visit) {
print(t,visit,"*:",null,null);
}
public void visitSr(GroovySourceAST t, int visit) {
print(t,visit," >> ",null,null);
}
public void visitSrAssign(GroovySourceAST t, int visit) {
print(t,visit," >>= ",null,null);
}
public void visitStar(GroovySourceAST t,int visit) {
print(t,visit,"*",null,null);
}
public void visitStarAssign(GroovySourceAST t, int visit) {
print(t,visit," *= ",null,null);
}
public void visitStarStar(GroovySourceAST t,int visit) {
print(t,visit,"**",null,null);
}
public void visitStarStarAssign(GroovySourceAST t, int visit) {
print(t,visit," **= ",null,null);
}
public void visitStaticInit(GroovySourceAST t, int visit) {
print(t,visit,"static ",null,null);
}
public void visitStaticImport(GroovySourceAST t,int visit) {
print(t,visit,"import static ",null,null);
}
public void visitStrictfp(GroovySourceAST t,int visit) {
print(t,visit,"strictfp ",null,null);
}
// visitStringch
// String characters only used by lexer, never visited/created directly
public void visitStringConstructor(GroovySourceAST t,int visit) {
if (visit == OPENING_VISIT) {
stringConstructorCounter = 0;
print(t,visit,"\"");
}
if (visit == SUBSEQUENT_VISIT) {
// every other subsequent visit use an escaping $
if (stringConstructorCounter % 2 == 0) {
print(t,visit,"$");
}
stringConstructorCounter++;
}
if (visit == CLOSING_VISIT) {
print(t,visit,"\"");
}
}
public void visitStringLiteral(GroovySourceAST t,int visit) {
if (visit == OPENING_VISIT) {
String theString = escape(t.getText());
if (getParentNode().getType() != GroovyTokenTypes.LABELED_ARG &&
getParentNode().getType() != GroovyTokenTypes.STRING_CONSTRUCTOR) {
theString = "\"" + theString + "\"";
}
print(t,visit,theString);
}
}
private static String escape(String literal) {
literal = literal.replaceAll("\n","\\\\<>n"); // can't seem to do \n in one go with Java regex
literal = literal.replaceAll("<>","");
return literal;
}
public void visitSuperCtorCall(GroovySourceAST t,int visit) {
printUpdatingTabLevel(t,visit,"super("," ",")");
}
public void visitTraitDef(GroovySourceAST t,int visit) {
print(t,visit,"trait ",null,null);
if (visit == OPENING_VISIT) {
// store name of class away for use in constructor ident
className = t.childOfType(GroovyTokenTypes.IDENT).getText();
}
}
// visit TripleDot, not used in the AST
public void visitType(GroovySourceAST t,int visit) {
GroovySourceAST parent = getParentNode();
GroovySourceAST modifiers = parent.childOfType(GroovyTokenTypes.MODIFIERS);
// No need to print 'def' if we already have some modifiers
if (modifiers == null || modifiers.getNumberOfChildren() == 0) {
if (visit == OPENING_VISIT) {
if (t.getNumberOfChildren() == 0 &&
parent.getType() != GroovyTokenTypes.PARAMETER_DEF) { // no need for 'def' if in a parameter list
print(t,visit,"def");
}
}
if (visit == CLOSING_VISIT) {
if ( parent.getType() == GroovyTokenTypes.VARIABLE_DEF ||
parent.getType() == GroovyTokenTypes.METHOD_DEF ||
parent.getType() == GroovyTokenTypes.ANNOTATION_FIELD_DEF ||
(parent.getType() == GroovyTokenTypes.PARAMETER_DEF && t.getNumberOfChildren()!=0))
{
print(t,visit," ");
}
}
/*if (visit == CLOSING_VISIT) {
print(t,visit," ");
}*/
} else {
if (visit == CLOSING_VISIT) {
if (t.getNumberOfChildren() != 0) {
print(t,visit," ");
}
}
}
}
public void visitTypeArgument(GroovySourceAST t, int visit) {
// print nothing
}
public void visitTypeArguments(GroovySourceAST t, int visit) {
print(t,visit,"<",", ",">");
}
public void visitTypecast(GroovySourceAST t,int visit) {
print(t,visit,"(",null,")");
}
public void visitTypeLowerBounds(GroovySourceAST t,int visit) {
print(t,visit," super "," & ",null);
}
public void visitTypeParameter(GroovySourceAST t, int visit) {
// print nothing
}
public void visitTypeParameters(GroovySourceAST t, int visit) {
print(t,visit,"<",", ",">");
}
public void visitTypeUpperBounds(GroovySourceAST t,int visit) {
print(t,visit," extends "," & ",null);
}
public void visitUnaryMinus(GroovySourceAST t, int visit) {
print(t,visit,"-",null,null);
}
public void visitUnaryPlus(GroovySourceAST t, int visit) {
print(t,visit,"+",null,null);
}
// visit Unused "const", "do", "goto" - unsurprisingly these are unused by the AST.
public void visitVariableDef(GroovySourceAST t,int visit) {
// do nothing
}
// a.k.a. "variable arity parameter" in the JLS
public void visitVariableParameterDef(GroovySourceAST t,int visit) {
print(t,visit,null,"... ",null);
}
// visit Vocab - only used by Lexer
public void visitWildcardType(GroovySourceAST t, int visit) {
print(t,visit,"?",null,null);
}
// visit WS - only used by lexer
public void visitDefault(GroovySourceAST t,int visit) {
if (visit == OPENING_VISIT) {
print(t,visit,"<" + tokenNames[t.getType()] + ">");
//out.print("<" + t.getType() + ">");
} else {
print(t,visit,"");
//out.print("");
}
}
protected void printUpdatingTabLevel(GroovySourceAST t,int visit,String opening, String subsequent, String closing) {
if (visit == OPENING_VISIT && opening != null) {
print(t,visit,opening);
tabLevel++;
}
if (visit == SUBSEQUENT_VISIT && subsequent != null) {
print(t,visit,subsequent);
}
if (visit == CLOSING_VISIT && closing != null) {
tabLevel--;
print(t,visit,closing);
}
}
protected void print(GroovySourceAST t,int visit,String opening, String subsequent, String closing) {
if (visit == OPENING_VISIT && opening != null) {
print(t,visit,opening);
}
if (visit == SUBSEQUENT_VISIT && subsequent != null) {
print(t,visit,subsequent);
}
if (visit == CLOSING_VISIT && closing != null) {
print(t,visit,closing);
}
}
protected void print(GroovySourceAST t,int visit,String value) {
if(visit == OPENING_VISIT) {
printNewlineAndIndent(t, visit);
}
if (visit == CLOSING_VISIT) {
printNewlineAndIndent(t, visit);
}
out.print(value);
}
protected void printNewlineAndIndent(GroovySourceAST t, int visit) {
int currentLine = t.getLine();
if (lastLinePrinted == 0) { lastLinePrinted = currentLine; }
if (lastLinePrinted != currentLine) {
if (newLines) {
if (!(visit == OPENING_VISIT && t.getType() == GroovyTokenTypes.SLIST)) {
for (int i=lastLinePrinted;i currentLine) {
out.println();
lastLinePrinted = currentLine;
}
if (visit == OPENING_VISIT || (visit == CLOSING_VISIT && lastLinePrinted > currentLine)) {
for (int i=0;i