/**
* BSD-style license; for more info see http://pmd.sourceforge.net/license.html
*/
package net.sourceforge.pmd.lang.ecmascript.ast;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;
import net.sourceforge.pmd.util.StringUtil;
public class DumpFacade {
private PrintWriter writer;
private boolean recurse;
public void initializeWith(Writer writer, String prefix, boolean recurse, EcmascriptNode<?> node) {
this.writer = writer instanceof PrintWriter ? (PrintWriter) writer : new PrintWriter(writer);
this.recurse = recurse;
this.dump(node, prefix);
try {
writer.flush();
} catch (IOException e) {
throw new RuntimeException("Problem flushing PrintWriter.", e);
}
}
public Object visit(EcmascriptNode<?> node, Object data) {
dump(node, (String) data);
if (recurse) {
for (int i = 0; i < node.jjtGetNumChildren(); i++) {
visit((EcmascriptNode<?>) node.jjtGetChild(i), data + " ");
}
return data;
} else {
return data;
}
}
private void dump(EcmascriptNode<?> node, String prefix) {
//
// Dump format is generally composed of the following items...
//
// 1) Dump prefix
writer.print(prefix);
// 2) JJT Name of the Node
writer.print(node.toString());
//
// If there are any additional details, then:
// 1) A colon
// 2) The Node.getImage() if it is non-empty
// 3) Extras in parentheses
//
// Standard image handling
String image = node.getImage();
// Special image handling (e.g. Nodes with normally null images)
image = StringUtil.escapeWhitespace(image);
// Extras
List<String> extras = new ArrayList<>();
// Standard DestructuringNode extras
if (node instanceof DestructuringNode) {
if (((DestructuringNode) node).isDestructuring()) {
extras.add("destructuring");
}
}
// Other extras
if (node instanceof ASTArrayComprehension) {
if (((ASTArrayComprehension) node).hasFilter()) {
extras.add("has filter");
}
} else if (node instanceof ASTBreakStatement) {
if (((ASTBreakStatement) node).hasLabel()) {
extras.add("has label");
}
} else if (node instanceof ASTCatchClause) {
if (((ASTCatchClause) node).isIf()) {
extras.add("if");
}
} else if (node instanceof ASTContinueStatement) {
if (((ASTContinueStatement) node).hasLabel()) {
extras.add("has label");
}
} else if (node instanceof ASTExpressionStatement) {
if (((ASTExpressionStatement) node).hasResult()) {
extras.add("has result");
}
} else if (node instanceof ASTForInLoop) {
if (((ASTForInLoop) node).isForEach()) {
extras.add("for each");
}
} else if (node instanceof ASTFunctionCall) {
if (((ASTFunctionCall) node).hasArguments()) {
extras.add("has arguments");
}
} else if (node instanceof ASTFunctionNode) {
if (((ASTFunctionNode) node).isClosure()) {
extras.add("closure");
}
if (((ASTFunctionNode) node).isGetter()) {
extras.add("getter");
}
if (((ASTFunctionNode) node).isSetter()) {
extras.add("setter");
}
} else if (node instanceof ASTIfStatement) {
if (((ASTIfStatement) node).hasElse()) {
extras.add("has else");
}
} else if (node instanceof ASTKeywordLiteral) {
if (((ASTKeywordLiteral) node).isBoolean()) {
extras.add("boolean");
}
} else if (node instanceof ASTLetNode) {
if (((ASTLetNode) node).hasBody()) {
extras.add("has body");
}
} else if (node instanceof ASTName) {
if (((ASTName) node).isLocalName()) {
extras.add("local");
}
if (((ASTName) node).isGlobalName()) {
extras.add("global");
}
} else if (node instanceof ASTNewExpression) {
if (((ASTNewExpression) node).hasArguments()) {
extras.add("has arguments");
}
if (((ASTNewExpression) node).hasInitializer()) {
extras.add("has initializer");
}
} else if (node instanceof ASTNumberLiteral) {
extras.add("Number=" + ((ASTNumberLiteral) node).getNumber());
extras.add("NormalizedImage=" + ((ASTNumberLiteral) node).getNormalizedImage());
} else if (node instanceof ASTObjectProperty) {
if (((ASTObjectProperty) node).isGetter()) {
extras.add("getter");
}
if (((ASTObjectProperty) node).isSetter()) {
extras.add("setter");
}
} else if (node instanceof ASTRegExpLiteral) {
extras.add("Flags=" + ((ASTRegExpLiteral) node).getFlags());
} else if (node instanceof ASTReturnStatement) {
if (((ASTReturnStatement) node).hasResult()) {
extras.add("has result");
}
} else if (node instanceof ASTStringLiteral) {
if (((ASTStringLiteral) node).isSingleQuoted()) {
extras.add("single quoted");
}
if (((ASTStringLiteral) node).isDoubleQuoted()) {
extras.add("double quoted");
}
} else if (node instanceof ASTSwitchCase) {
if (((ASTSwitchCase) node).isDefault()) {
extras.add("default");
}
} else if (node instanceof ASTTryStatement) {
if (((ASTTryStatement) node).hasCatch()) {
extras.add("catch");
}
if (((ASTTryStatement) node).hasFinally()) {
extras.add("finally");
}
} else if (node instanceof ASTUnaryExpression) {
if (((ASTUnaryExpression) node).isPrefix()) {
extras.add("prefix");
}
if (((ASTUnaryExpression) node).isPostfix()) {
extras.add("postfix");
}
}
// Standard EcmascriptNode extras
if (node.hasSideEffects()) {
extras.add("has side effects");
}
// Output image and extras
if (image != null || !extras.isEmpty()) {
writer.print(':');
if (image != null) {
writer.print(image);
}
for (String extra : extras) {
writer.print('(');
writer.print(extra);
writer.print(')');
}
}
writer.println();
}
}