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comparison truffle/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/impl/DefaultVisualizer.java @ 21951:9c8c0937da41

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Moving all sources into truffle subdirectory
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 17 Jun 2015 10:58:08 +0200
parents graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/impl/DefaultVisualizer.java@894f82515e38
children dc83cc1f94f2
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21950:2a5011c7e641 21951:9c8c0937da41
1 /*
2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package com.oracle.truffle.api.instrument.impl;
26
27 import com.oracle.truffle.api.*;
28 import com.oracle.truffle.api.frame.*;
29 import com.oracle.truffle.api.instrument.*;
30 import com.oracle.truffle.api.nodes.*;
31 import com.oracle.truffle.api.source.*;
32
33 public class DefaultVisualizer implements Visualizer {
34
35 private final ASTPrinter astPrinter;
36
37 public DefaultVisualizer() {
38 this.astPrinter = new DefaultASTPrinter();
39 }
40
41 public ASTPrinter getASTPrinter() {
42 return astPrinter;
43 }
44
45 public String displaySourceLocation(Node node) {
46 if (node == null) {
47 return "<unknown>";
48 }
49 SourceSection section = node.getSourceSection();
50 boolean estimated = false;
51 if (section == null) {
52 section = node.getEncapsulatingSourceSection();
53 estimated = true;
54 }
55 if (section == null) {
56 return "<error: source location>";
57 }
58 return section.getShortDescription() + (estimated ? "~" : "");
59 }
60
61 public String displayMethodName(Node node) {
62 if (node == null) {
63 return null;
64 }
65 RootNode root = node.getRootNode();
66 if (root == null) {
67 return "unknown";
68 }
69 return root.getCallTarget().toString();
70 }
71
72 public String displayCallTargetName(CallTarget callTarget) {
73 return callTarget.toString();
74 }
75
76 public String displayValue(Object value, int trim) {
77 return trim(value.toString(), trim);
78 }
79
80 public String displayIdentifier(FrameSlot slot) {
81 return slot.getIdentifier().toString();
82 }
83
84 /**
85 * Trims text if {@code trim > 0} to the shorter of {@code trim} or the length of the first line
86 * of test. Identity if {@code trim <= 0}.
87 */
88 protected String trim(String text, int trim) {
89 if (trim == 0) {
90 return text;
91 }
92 final String[] lines = text.split("\n");
93 String result = lines[0];
94 if (lines.length == 1) {
95 if (result.length() <= trim) {
96 return result;
97 }
98 if (trim <= 3) {
99 return result.substring(0, Math.min(result.length() - 1, trim - 1));
100 } else {
101 return result.substring(0, trim - 4) + "...";
102 }
103 }
104 return (result.length() < trim - 3 ? result : result.substring(0, trim - 4)) + "...";
105 }
106 }