Removed compiler/ directory from repository

dart/compiler/java/com/google/dart/compiler/ast/DartToSourceVisitor.java

Index: dart/compiler/java/com/google/dart/compiler/ast/DartToSourceVisitor.java
diff --git a/dart/compiler/java/com/google/dart/compiler/ast/DartToSourceVisitor.java b/dart/compiler/java/com/google/dart/compiler/ast/DartToSourceVisitor.java
deleted file mode 100644
index d7c259763e4eebb2653d6a5bf120fcb84cc09008..0000000000000000000000000000000000000000
--- a/dart/compiler/java/com/google/dart/compiler/ast/DartToSourceVisitor.java
+++ /dev/null
@@ -1,1050 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-package com.google.dart.compiler.ast;
-
-import com.google.dart.compiler.util.TextOutput;
-
-import java.util.Iterator;
-import java.util.List;
-
-/**
- * Used by {@link DartNode} to generate Dart source from an AST subtree.
- */
-public class DartToSourceVisitor extends ASTVisitor<Void> {
-
-  private final TextOutput out;
-
-  public DartToSourceVisitor(TextOutput out) {
-    this.out = out;
-  }
-
-  @Override
-  public Void visitUnit(DartUnit x) {
-    p("// unit " + x.getSourceName());
-    nl();
-    return super.visitUnit(x);
-  }
-
-  @Override
-  public Void visitComment(DartComment node) {
-    return null;
-  }
-
-  @Override
-  public Void visitNativeBlock(DartNativeBlock x) {
-    p("native;");
-    return null;
-  }
-
-  private void accept(DartNode x) {
-    x.accept(this);
-  }
-
-  private void acceptList(List<? extends DartNode> xs) {
-    for (DartNode x : xs) {
-      x.accept(this);
-    }
-  }
-
-  private void pTypeParameters(List<DartTypeParameter> typeParameters) {
-    if (typeParameters != null && !typeParameters.isEmpty()) {
-      p("<");
-      boolean first = true;
-      for (DartNode node : typeParameters) {
-        if (!first) {
-          p(", ");
-        }
-        accept(node);
-        first = false;
-      }
-      p(">");
-    }
-  }
-
-  @Override
-  public Void visitLibraryDirective(DartLibraryDirective node) {
-    if (node.isObsoleteFormat()) {
-      p("#library(");
-      accept(node.getName());
-      p(");");
-      nl();
-    } else {
-      p("library ");
-      accept(node.getName());
-      p(";");
-      nl();
-    }
-    return null;
-  }
-
-  @SuppressWarnings("deprecation")
-  @Override
-  public Void visitImportDirective(DartImportDirective node) {
-    if (node.isObsoleteFormat()) {
-      p("#import(");
-      accept(node.getLibraryUri());
-      if (node.getOldPrefix() != null) {
-        p(", prefix : ");
-        accept(node.getOldPrefix());
-      }
-      p(");");
-      nl();
-    } else {
-      p("import ");
-      accept(node.getLibraryUri());
-      if (node.getPrefix() != null) {
-        p(" as ");
-        accept(node.getPrefix());
-      }
-      for (ImportCombinator combinator : node.getCombinators()) {
-        accept(combinator);
-      }
-      if (node.isExported()) {
-        p(" & export");
-      }
-      p(";");
-      nl();
-    }
-    return null;
-  }
-
-  @Override
-  public Void visitFunctionTypeAlias(DartFunctionTypeAlias x) {
-    p("typedef ");
-
-    if (x.getReturnTypeNode() != null) {
-      accept(x.getReturnTypeNode());
-    }
-
-    p(" ");
-    accept(x.getName());
-    pTypeParameters(x.getTypeParameters());
-
-    p("(");
-    printSeparatedByComma(x.getParameters());
-    p(")");
-
-    p(";");
-    nl();
-    nl();
-    return null;
-  }
-
-  @Override
-  public Void visitClass(DartClass x) {
-    if (x.isInterface()) {
-      p("interface ");
-    } else {
-      p("class ");
-    }
-    accept(x.getName());
-    pTypeParameters(x.getTypeParameters());
-
-    if (x.getSuperclass() != null) {
-      p(" extends ");
-      accept(x.getSuperclass());
-    }
-
-    List<DartTypeNode> interfaces = x.getInterfaces();
-    if (interfaces != null && !interfaces.isEmpty()) {
-      if (x.isInterface()) {
-        p(" extends ");
-      } else {
-        p(" implements ");
-      }
-      boolean first = true;
-      for (DartTypeNode cls : interfaces) {
-        if (!first) {
-          p(", ");
-        }
-        accept(cls);
-        first = false;
-      }
-    }
-
-    if (x.getNativeName() != null) {
-      p(" native ");
-      accept(x.getNativeName());
-    }
-
-    if (x.getDefaultClass() != null) {
-      p(" default ");
-      accept(x.getDefaultClass());
-    }
-
-    p(" {");
-    nl();
-    indent();
-
-    acceptList(x.getMembers());
-
-    outdent();
-    p("}");
-    nl();
-    nl();
-    return null;
-  }
-
-  @Override
-  public Void visitTypeNode(DartTypeNode x) {
-    accept(x.getIdentifier());
-    List<DartTypeNode> arguments = x.getTypeArguments();
-    if (arguments != null && !arguments.isEmpty()) {
-      p("<");
-      printSeparatedByComma(arguments);
-      p(">");
-    }
-    return null;
-  }
-
-  @Override
-  public Void visitTypeParameter(DartTypeParameter x) {
-    accept(x.getName());
-    DartTypeNode bound = x.getBound();
-    if (bound != null) {
-      p(" extends ");
-      accept(bound);
-    }
-    return null;
-  }
-
-  @Override
-  public Void visitFieldDefinition(DartFieldDefinition x) {
-    Modifiers modifiers = x.getFields().get(0).getModifiers();
-    if (modifiers.isAbstractField()) {
-      pAbstractField(x);
-    } else {
-      pFieldModifiers(x);
-      if (x.getTypeNode() != null) {
-        accept(x.getTypeNode());
-        p(" ");
-      } else {
-        if (!modifiers.isFinal()) {
-          p("var ");
-        }
-      }
-      printSeparatedByComma(x.getFields());
-      p(";");
-    }
-
-    nl();
-
-    return null;
-  }
-
-  @Override
-  public Void visitField(DartField x) {
-    accept(x.getName());
-    if (x.getValue() != null) {
-      p(" = ");
-      accept(x.getValue());
-    }
-    return null;
-  }
-
-  @Override
-  public Void visitParameter(DartParameter x) {
-    if (x.getModifiers().isFinal()) {
-      p("final ");
-    }
-    if (x.getTypeNode() != null) {
-      accept(x.getTypeNode());
-      p(" ");
-    }
-    accept(x.getName());
-    if (x.getFunctionParameters() != null) {
-      p("(");
-      printSeparatedByComma(x.getFunctionParameters());
-      p(")");
-    }
-    if (x.getDefaultExpr() != null) {
-      if (x.getModifiers().isOptional()) {
-        p(" = ");
-      }
-      if (x.getModifiers().isNamed()) {
-        p(" : ");
-      }
-      accept(x.getDefaultExpr());
-    }
-    return null;
-  }
-
-  @Override
-  public Void visitMethodDefinition(DartMethodDefinition x) {
-    nl();
-    pMethodModifiers(x);
-    // return type
-    DartFunction func = x.getFunction();
-    if (func.getReturnTypeNode() != null) {
-      accept(func.getReturnTypeNode());
-      p(" ");
-    }
-    // special methods
-    if (x.getModifiers().isOperator()) {
-      p("operator ");
-    } else if (x.getModifiers().isGetter()) {
-      p("get ");
-    } else if (x.getModifiers().isSetter()) {
-      p("set ");
-    }
-    // name
-    pFunctionDeclaration(x.getName(), func, !x.getModifiers().isGetter());
-    p(" ");
-    // initializers
-    List<DartInitializer> inits = x.getInitializers();
-    if (!inits.isEmpty()) {
-      p(": ");
-      for (int i = 0; i < inits.size(); ++i) {
-        accept(inits.get(i));
-        if (i < inits.size() - 1) {
-          p(", ");
-        }
-      }
-    }
-    // body
-    if (x.getFunction().getBody() != null) {
-      accept(x.getFunction().getBody());
-    } else if (x.getRedirectedTypeName() != null) {
-      p(" = ");
-      accept(x.getRedirectedTypeName());
-      if (x.getRedirectedConstructorName() != null) {
-        p(".");
-        accept(x.getRedirectedConstructorName());
-      }
-      p(";");
-      nl();
-    } else {
-      p(";");
-      nl();
-    }
-    // done
-    return null;
-  }
-
-  @Override
-  public Void visitInitializer(DartInitializer x) {
-    if (!x.isInvocation()) {
-      p("this.");
-      p(x.getInitializerName());
-      p(" = ");
-    }
-    accept(x.getValue());
-    return null;
-  }
-
-  private void pBlock(DartBlock x, boolean newline) {
-    p("{");
-    nl();
-
-    indent();
-    acceptList(x.getStatements());
-    outdent();
-
-    p("}");
-    if (newline) {
-      nl();
-    }
-  }
-
-  private void pFunctionDeclaration(DartNode name, DartFunction x, boolean includeParameters) {
-    if (name != null) {
-      accept(name);
-    }
-    if (includeParameters) {
-      p("(");
-      pFormalParameters(x.getParameters());
-      p(")");
-    }
-  }
-
-  private void pFormalParameters(List<DartParameter> params) {
-    boolean first = true, hasPositional = false, hasNamed = false;
-    for (DartParameter param : params) {
-      if (!first) {
-        p(", ");
-      }
-      if (!hasPositional && param.getModifiers().isOptional()) {
-        hasPositional = true;
-        p("[");
-      }
-      if (!hasNamed && param.getModifiers().isNamed()) {
-        hasNamed = true;
-        p("{");
-      }
-      accept(param);
-      first = false;
-    }
-    if (hasPositional) {
-      p("]");
-    }
-    if (hasNamed) {
-      p("}");
-    }
-  }
-  
-  @Override
-  public Void visitAssertStatement(DartAssertStatement x) {
-    p("assert(");
-    accept(x.getCondition());
-    p(");");
-    return null;
-  }
-
-  @Override
-  public Void visitBlock(DartBlock x) {
-    pBlock(x, true);
-    return null;
-  }
-
-  @Override
-  public Void visitIfStatement(DartIfStatement x) {
-    p("if (");
-    accept(x.getCondition());
-    p(") ");
-    pIfBlock(x.getThenStatement(), x.getElseStatement() == null);
-    if (x.getElseStatement() != null) {
-      p(" else ");
-      pIfBlock(x.getElseStatement(), true);
-    }
-    return null;
-  }
-
-  @Override
-  public Void visitSwitchStatement(DartSwitchStatement x) {
-    p("switch (");
-    accept(x.getExpression());
-    p(") {");
-    nl();
-
-    indent();
-    acceptList(x.getMembers());
-    outdent();
-
-    p("}");
-    nl();
-    return null;
-  }
-
-  @Override
-  public Void visitCase(DartCase x) {
-    p("case ");
-    accept(x.getExpr());
-    p(":");
-    nl();
-    indent();
-    acceptList(x.getStatements());
-    outdent();
-    return null;
-  }
-
-  @Override
-  public Void visitDefault(DartDefault x) {
-    p("default:");
-    nl();
-    indent();
-    acceptList(x.getStatements());
-    outdent();
-    return null;
-  }
-
-  @Override
-  public Void visitWhileStatement(DartWhileStatement x) {
-    p("while (");
-    accept(x.getCondition());
-    p(") ");
-    pIfBlock(x.getBody(), true);
-    return null;
-  }
-
-  @Override
-  public Void visitDoWhileStatement(DartDoWhileStatement x) {
-    p("do ");
-    pIfBlock(x.getBody(), false);
-    p(" while (");
-    accept(x.getCondition());
-    p(");");
-    nl();
-    return null;
-  }
-
-  @Override
-  public Void visitForStatement(DartForStatement x) {
-    p("for (");
-
-    // Setup
-    DartStatement setup = x.getInit();
-    if (setup != null) {
-      if (setup instanceof DartVariableStatement) {
-        // Special case to avoid an extra semicolon & newline after the var
-        // statement.
-        p("var ");
-        printSeparatedByComma(((DartVariableStatement) setup).getVariables());
-      } else {
-        // Plain old expression.
-        assert setup instanceof DartExprStmt;
-        accept(((DartExprStmt) setup).getExpression());
-      }
-    }
-    p("; ");
-
-    // Condition
-    if (x.getCondition() != null) {
-      accept(x.getCondition());
-    }
-    p("; ");
-
-    // Next
-    if (x.getIncrement() != null) {
-      accept(x.getIncrement());
-    }
-    p(") ");
-
-    // Body
-    accept(x.getBody());
-    nl();
-    return null;
-  }
-
-  @Override
-  public Void visitForInStatement(DartForInStatement x) {
-    p("for (");
-    if (x.introducesVariable()) {
-      DartTypeNode type = x.getVariableStatement().getTypeNode();
-      if (type != null) {
-        accept(type);
-        p(" ");
-      } else {
-        p("var ");
-      }
-      printSeparatedByComma(x.getVariableStatement().getVariables());
-    } else {
-      accept(x.getIdentifier());
-    }
-
-    p(" in ");
-
-    // iterable
-    accept(x.getIterable());
-    p(") ");
-
-    // Body
-    accept(x.getBody());
-    nl();
-    return null;
-  }
-
-  @Override
-  public Void visitContinueStatement(DartContinueStatement x) {
-    p("continue");
-    if (x.getTargetName() != null) {
-      p(" " + x.getTargetName());
-    }
-    p(";");
-    nl();
-    return null;
-  }
-
-  @Override
-  public Void visitBreakStatement(DartBreakStatement x) {
-    p("break");
-    if (x.getTargetName() != null) {
-      p(" " + x.getTargetName());
-    }
-    p(";");
-    nl();
-    return null;
-  }
-
-  @Override
-  public Void visitReturnStatement(DartReturnStatement x) {
-    p("return");
-    if (x.getValue() != null) {
-      p(" ");
-      accept(x.getValue());
-    }
-    p(";");
-    nl();
-    return null;
-  }
-
-  @Override
-  public Void visitTryStatement(DartTryStatement x) {
-    p("try ");
-    accept(x.getTryBlock());
-    acceptList(x.getCatchBlocks());
-    if (x.getFinallyBlock() != null) {
-      p("finally ");
-      accept(x.getFinallyBlock());
-    }
-    return null;
-  }
-
-  @Override
-  public Void visitCatchBlock(DartCatchBlock x) {
-    DartParameter catchParameter = x.getException();
-    DartTypeNode type = catchParameter.getTypeNode();
-    if (type != null) {
-      p("on ");
-      accept(type);
-      p(" ");
-    }
-    p("catch (");
-    accept(catchParameter.getName());
-    if (x.getStackTrace() != null) {
-      p(", ");
-      accept(x.getStackTrace());
-    }
-    p(") ");
-    accept(x.getBlock());
-    return null;
-  }
-
-  @Override
-  public Void visitThrowExpression(DartThrowExpression x) {
-    p("throw");
-    if (x.getException() != null) {
-      p(" ");
-      accept(x.getException());
-    }
-    return null;
-  }
-
-  @Override
-  public Void visitVariableStatement(DartVariableStatement x) {
-    if (x.getTypeNode() != null) {
-      accept(x.getTypeNode());
-      p(" ");
-    } else {
-      p("var ");
-    }
-    printSeparatedByComma(x.getVariables());
-    p(";");
-    nl();
-    return null;
-  }
-
-  @Override
-  public Void visitVariable(DartVariable x) {
-    accept(x.getName());
-    if (x.getValue() != null) {
-      p(" = ");
-      accept(x.getValue());
-    }
-    return null;
-  }
-
-  @Override
-  public Void visitEmptyStatement(DartEmptyStatement x) {
-    p(";");
-    nl();
-    return null;
-  }
-
-  @Override
-  public Void visitLabel(DartLabel x) {
-    p(x.getName());
-    p(": ");
-    accept(x.getStatement());
-    return null;
-  }
-
-  @Override
-  public Void visitExprStmt(DartExprStmt x) {
-    accept(x.getExpression());
-    p(";");
-    nl();
-    return null;
-  }
-
-  @Override
-  public Void visitBinaryExpression(DartBinaryExpression x) {
-    accept(x.getArg1());
-    p(" ");
-    p(x.getOperator().getSyntax());
-    p(" ");
-    accept(x.getArg2());
-    return null;
-  }
-
-  @Override
-  public Void visitConditional(DartConditional x) {
-    accept(x.getCondition());
-    p(" ? ");
-    accept(x.getThenExpression());
-    p(" : ");
-    accept(x.getElseExpression());
-    return null;
-  }
-
-  @Override
-  public Void visitUnaryExpression(DartUnaryExpression x) {
-    if (x.isPrefix()) {
-      p(x.getOperator().getSyntax());
-    }
-    accept(x.getArg());
-    if (!x.isPrefix()) {
-      p(x.getOperator().getSyntax());
-    }
-    return null;
-  }
-
-  @Override
-  public Void visitPropertyAccess(DartPropertyAccess x) {
-    if (x.getQualifier() != null) {
-      accept(x.getQualifier());
-    }
-    if (x.isCascade()) {
-      p("..");
-    } else {
-      p(".");
-    }
-    p(x.getPropertyName());
-    return null;
-  }
-
-  @Override
-  public Void visitCascadeExpression(DartCascadeExpression x) {
-    accept(x.getTarget());
-    acceptList(x.getCascadeSections());
-    return null;
-  }
-
-  @Override
-  public Void visitArrayAccess(DartArrayAccess x) {
-    if (x.isCascade()) {
-      p("..");
-    } else {
-      accept(x.getTarget());
-    }
-    p("[");
-    accept(x.getKey());
-    p("]");
-    return null;
-  }
-
-  private void pArgs(List<? extends DartNode> args) {
-    p("(");
-    printSeparatedByComma(args);
-    p(")");
-  }
-
-  @Override
-  public Void visitUnqualifiedInvocation(DartUnqualifiedInvocation x) {
-    accept(x.getTarget());
-    pArgs(x.getArguments());
-    return null;
-  }
-
-  @Override
-  public Void visitFunctionObjectInvocation(DartFunctionObjectInvocation x) {
-    accept(x.getTarget());
-    pArgs(x.getArguments());
-    return null;
-  }
-
-  @Override
-  public Void visitMethodInvocation(DartMethodInvocation x) {
-    if (x.isCascade()) {
-      p("..");
-    } else {
-      accept(x.getTarget());
-      p(".");
-    }
-    accept(x.getFunctionName());
-    pArgs(x.getArguments());
-    return null;
-  }
-
-  @Override
-  public Void visitSyntheticErrorExpression(DartSyntheticErrorExpression node) {
-    p("[error: " + node.getTokenString() + "]");
-    return null;
-  }
-
-  @Override
-  public Void visitSyntheticErrorStatement(DartSyntheticErrorStatement node) {
-    p("[error: " + node.getTokenString() + "]");
-    return null;
-  }
-
-  @Override
-  public Void visitThisExpression(DartThisExpression x) {
-    p("this");
-    return null;
-  }
-
-  @Override
-  public Void visitSuperExpression(DartSuperExpression x) {
-    p("super");
-    return null;
-  }
-
-  @Override
-  public Void visitSuperConstructorInvocation(DartSuperConstructorInvocation x) {
-    p("super");
-    if (x.getName() != null) {
-      p(".");
-      accept(x.getName());
-    }
-    pArgs(x.getArguments());
-    return null;
-  }
-
-  @Override
-  public Void visitNewExpression(DartNewExpression x) {
-    if (x.isConst()) {
-      p("const ");
-    } else {
-      p("new ");
-    }
-    accept(x.getConstructor());
-    pArgs(x.getArguments());
-    return null;
-  }
-
-  @Override
-  public Void visitFunctionExpression(DartFunctionExpression x) {
-    DartFunction func = x.getFunction();
-    if (func.getReturnTypeNode() != null) {
-      accept(func.getReturnTypeNode());
-      p(" ");
-    }
-    DartIdentifier name = x.getName();
-    pFunctionDeclaration(name, x.getFunction(), true);
-    p(" ");
-    if (x.getFunction().getBody() != null) {
-      pBlock(x.getFunction().getBody(), false);
-    }
-    return null;
-  }
-
-  @Override
-  public Void visitIdentifier(DartIdentifier x) {
-    p(x.getName());
-    return null;
-  }
-
-  @Override
-  public Void visitNullLiteral(DartNullLiteral x) {
-    p("null");
-    return null;
-  }
-
-  @Override
-  public Void visitRedirectConstructorInvocation(DartRedirectConstructorInvocation x) {
-    p("this");
-    if (x.getName() != null) {
-      p(".");
-      accept(x.getName());
-    }
-    pArgs(x.getArguments());
-    return null;
-  }
-
-  @Override
-  public Void visitStringLiteral(DartStringLiteral x) {
-    if (x.getValue() == null) {
-      return null;
-    }
-    p("\"");
-    // 'replaceAll' takes regular expressions as first argument and parses the second argument
-    // for captured groups. We must escape backslashes twice: once to escape them in the source
-    // code and once for the regular expression parser.
-    String escaped = x.getValue().replaceAll("\\\\", "\\\\\\\\");
-    escaped = escaped.replaceAll("\"", "\\\\\"");
-    escaped = escaped.replaceAll("'", "\\\\'");
-    escaped = escaped.replaceAll("\\n", "\\\\n");
-    // In the replacement string '$' is used to refer to captured groups. We have to escape the
-    // dollar.
-    escaped = escaped.replaceAll("\\$", "\\\\\\$");
-    p(escaped);
-    p("\"");
-    return null;
-  }
-
-  @Override
-  public Void visitStringInterpolation(DartStringInterpolation x) {
-    p("\"");
-    // do not use the default visitor recursion, instead alternate strings and
-    // expressions:
-    Iterator<DartExpression> eIter = x.getExpressions().iterator();
-    boolean first = true;
-    for (DartStringLiteral lit : x.getStrings()) {
-      if (first) {
-        first = false;
-      } else {
-        p("${");
-        assert eIter.hasNext() : "DartStringInterpolation invariant broken.";
-        accept(eIter.next());
-        p("}");
-      }
-      p(lit.getValue().replaceAll("\"", "\\\""));
-    }
-    p("\"");
-    return null;
-  }
-
-  @Override
-  public Void visitBooleanLiteral(DartBooleanLiteral x) {
-    p(Boolean.toString(x.getValue()));
-    return null;
-  }
-
-  @Override
-  public Void visitIntegerLiteral(DartIntegerLiteral x) {
-    p(x.getValue().toString());
-    return null;
-  }
-
-  @Override
-  public Void visitDoubleLiteral(DartDoubleLiteral x) {
-    p(Double.toString(x.getValue()));
-    return null;
-  }
-
-  @Override
-  public Void visitArrayLiteral(DartArrayLiteral x) {
-    List<DartTypeNode> typeArguments = x.getTypeArguments();
-    if (typeArguments != null && typeArguments.size() > 0) {
-      p("<");
-      printSeparatedByComma(typeArguments);
-      p(">");
-    }
-    p("[");
-    printSeparatedByComma(x.getExpressions());
-    p("]");
-    return null;
-  }
-
-  @Override
-  public Void visitMapLiteral(DartMapLiteral x) {
-    List<DartTypeNode> typeArguments = x.getTypeArguments();
-    if (typeArguments != null && typeArguments.size() > 0) {
-      p("<");
-      printSeparatedByComma(typeArguments);
-      p(">");
-    }
-    p("{");
-    List<DartMapLiteralEntry> entries = x.getEntries();
-    for (int i = 0; i < entries.size(); ++i) {
-      DartMapLiteralEntry entry = entries.get(i);
-      accept(entry);
-      if (i < entries.size() - 1) {
-        p(", ");
-      }
-    }
-    p("}");
-    return null;
-  }
-
-  @Override
-  public Void visitMapLiteralEntry(DartMapLiteralEntry x) {
-    // Always quote keys just to be safe. This could be optimized to only quote
-    // unsafe identifiers.
-    accept(x.getKey());
-    p(" : ");
-    accept(x.getValue());
-    return null;
-  }
-
-  @Override
-  public Void visitParameterizedTypeNode(DartParameterizedTypeNode x) {
-    accept(x.getExpression());
-    if (!x.getTypeParameters().isEmpty()) {
-      p("<");
-      printSeparatedByComma(x.getTypeParameters());
-      p(">");
-    }
-    return null;
-  }
-
-  @Override
-  public Void visitParenthesizedExpression(DartParenthesizedExpression x) {
-    p("(");
-    accept(x.getExpression());
-    p(")");
-    return null;
-  }
-
-  @Override
-  public Void visitNamedExpression(DartNamedExpression x) {
-    accept(x.getName());
-    p(":");
-    accept(x.getExpression());
-    return null;
-  }
-
-  private void pAbstractField(DartFieldDefinition x) {
-    accept(x.getFields().get(0).getAccessor());
-  }
-
-  private void pIfBlock(DartStatement stmt, boolean newline) {
-    if (stmt instanceof DartBlock) {
-      pBlock((DartBlock) stmt, newline);
-    } else {
-      p("{");
-      nl();
-      indent();
-      accept(stmt);
-      outdent();
-      p("}");
-      if (newline) {
-        nl();
-      }
-    }
-  }
-
-  private void printSeparatedByComma(List<? extends DartNode> nodes) {
-    boolean first = true;
-    for (DartNode node : nodes) {
-      if (!first) {
-        p(", ");
-      }
-      accept(node);
-      first = false;
-    }
-  }
-
-  private void pFieldModifiers(DartFieldDefinition field) {
-    Modifiers modifiers = field.getFields().get(0).getModifiers();
-    if (modifiers.isStatic()) {
-      p("static ");
-    }
-    if (modifiers.isFinal()) {
-      p("final ");
-    }
-  }
-
-  private void pMethodModifiers(DartMethodDefinition method) {
-    if (method.getModifiers().isConstant()) {
-      p("const ");
-    }
-    if (method.getModifiers().isStatic()) {
-      p("static ");
-    }
-    if (method.getModifiers().isAbstract()) {
-      p("abstract ");
-    }
-    if (method.getModifiers().isFactory()) {
-      p("factory ");
-    }
-  }
-
-  private void p(String x) {
-    out.print(x);
-  }
-
-  private void nl() {
-    out.newline();
-  }
-
-  private void indent() {
-    out.indentIn();
-  }
-
-  private void outdent() {
-    out.indentOut();
-  }
-}