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view graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/debug/RubyASTPrinter.java @ 13563:fb846424299f
Truffle/Ruby: extend Instrumentation framework with language-agnostic interfaces for access to AST printing utilities and a Ruby implementation
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Tue, 07 Jan 2014 18:09:42 -0800 |
parents | |
children | e076c87ab175 |
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/* * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. This * code is released under a tri EPL/GPL/LGPL license. You can use it, * redistribute it and/or modify it under the terms of the: * * Eclipse Public License version 1.0 * GNU General Public License version 2 * GNU Lesser General Public License version 2.1 */ package com.oracle.truffle.ruby.nodes.debug; import java.io.*; import java.util.*; import com.oracle.truffle.api.*; import com.oracle.truffle.api.nodes.*; import com.oracle.truffle.api.nodes.NodeUtil.NodeClass; import com.oracle.truffle.api.nodes.NodeUtil.NodeField; import com.oracle.truffle.api.nodes.NodeUtil.NodeFieldKind; import com.oracle.truffle.api.nodes.instrument.*; import com.oracle.truffle.ruby.nodes.*; import com.oracle.truffle.ruby.nodes.call.*; import com.oracle.truffle.ruby.nodes.literal.*; import com.oracle.truffle.ruby.nodes.methods.*; /** * Printers for Truffle-internal AST information. */ public final class RubyASTPrinter implements ASTPrinter { public RubyASTPrinter() { } public void printTree(PrintWriter p, Node node, int maxDepth, Node markNode) { printTree(p, node, maxDepth, markNode, 1); p.println(); p.flush(); } public String printTreeToString(Node node, int maxDepth, Node markNode) { StringWriter out = new StringWriter(); printTree(new PrintWriter(out), node, maxDepth, markNode); return out.toString(); } public String printTreeToString(Node node, int maxDepth) { return printTreeToString(node, maxDepth, null); } private static void printTree(PrintWriter p, Node node, int maxDepth, Node markNode, int level) { if (node == null) { p.print("null"); return; } p.print(nodeName(node)); String sep = ""; p.print("("); final SourceSection src = node.getSourceSection(); if (src != null) { if (!(src instanceof NullSourceSection)) { p.print(src.getSource().getName() + ":" + src.getStartLine()); } else if (src instanceof CoreSourceSection) { final CoreSourceSection coreSection = (CoreSourceSection) src; p.print("core=\"" + (coreSection == null ? "?" : coreSection.toString()) + "\""); } } if (node instanceof PhylumMarked) { final PhylumMarked markedNode = (PhylumMarked) node; String prefix = ""; for (NodePhylum phylum : markedNode.getPhylumMarks()) { p.print(prefix); prefix = ","; p.print(phylum.toString()); } } ArrayList<NodeField> childFields = new ArrayList<>(); for (NodeField field : NodeClass.get(node.getClass()).getFields()) { if (field.getKind() == NodeFieldKind.CHILD || field.getKind() == NodeFieldKind.CHILDREN) { childFields.add(field); } else if (field.getKind() == NodeFieldKind.DATA) { // p.print(sep); // sep = ", "; // // final String fieldName = field.getName(); // switch (fieldName) { // // } // p.print(fieldName); // p.print(" = "); // p.print(field.loadValue(node)); } } p.print(")"); if (level <= maxDepth) { if (childFields.size() != 0) { p.print(" {"); for (NodeField field : childFields) { Object value = field.loadValue(node); if (value == null) { printNewLine(p, level); p.print(field.getName()); p.print(" = null "); } else if (field.getKind() == NodeFieldKind.CHILD) { final Node valueNode = (Node) value; printNewLine(p, level, valueNode == markNode); p.print(field.getName()); p.print(" = "); printTree(p, valueNode, maxDepth, markNode, level + 1); } else if (field.getKind() == NodeFieldKind.CHILDREN) { printNewLine(p, level); p.print(field.getName()); Node[] children = (Node[]) value; p.print(" = ["); sep = ""; for (Node child : children) { p.print(sep); sep = ", "; printTree(p, child, maxDepth, markNode, level + 1); } p.print("]"); } else { printNewLine(p, level); p.print(field.getName()); } } printNewLine(p, level - 1); p.print("}"); } } } private static void printNewLine(PrintWriter p, int level, boolean mark) { p.println(); for (int i = 0; i < level; i++) { if (mark && i == 0) { p.print(" -->"); } else { p.print(" "); } } } private static void printNewLine(PrintWriter p, int level) { printNewLine(p, level, false); } private static String nodeName(Node node) { String nodeVal = null; if (node instanceof CallNode) { final CallNode callNode = (CallNode) node; nodeVal = callNode.getName(); } else if (node instanceof FixnumLiteralNode) { final FixnumLiteralNode fixnum = (FixnumLiteralNode) node; nodeVal = Integer.toString(fixnum.getValue()); } else if (node instanceof MethodDefinitionNode) { final MethodDefinitionNode defNode = (MethodDefinitionNode) node; nodeVal = defNode.getName(); } String result = node.getClass().getSimpleName(); if (nodeVal != null) { result = result + "[\"" + nodeVal + "\"]"; } return result; } }