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1 /* |
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 /* |
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25 * @test |
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26 * @bug 8031967 |
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27 * @summary Ensure javac can handle very deeply nested chain of method invocations occurring as |
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28 * a parameter to other method invocations. |
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29 * @run main T8031967 |
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30 */ |
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31 |
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32 import java.io.IOException; |
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33 import java.net.URI; |
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34 import java.util.Arrays; |
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35 import java.util.List; |
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36 |
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37 import javax.tools.DiagnosticListener; |
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38 import javax.tools.JavaCompiler; |
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39 import javax.tools.JavaFileObject; |
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40 import javax.tools.SimpleJavaFileObject; |
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41 import javax.tools.ToolProvider; |
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42 |
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43 import com.sun.source.util.JavacTask; |
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44 |
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45 public class T8031967 { |
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46 |
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47 public static void main(String... args) throws IOException { |
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48 new T8031967().run(); |
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49 } |
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50 |
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51 final int depth = 50; |
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52 |
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53 private void run() throws IOException { |
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54 runTestCase(true); |
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55 runTestCase(false); |
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56 } |
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57 |
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58 private void runTestCase(boolean withErrors) throws IOException { |
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59 StringBuilder code = new StringBuilder(); |
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60 |
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61 code.append("public class Test {\n" + |
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62 " private void test() {\n" + |
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63 " GroupLayout l = new GroupLayout();\n" + |
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64 " l.setHorizontalGroup(\n"); |
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65 |
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66 gen(code, depth); |
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67 code.append(" );\n" + |
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68 " }\n"); |
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69 if (!withErrors) { |
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70 code.append(" class GroupLayout {\n" + |
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71 " ParallelGroup createParallelGroup() {return null;}\n" + |
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72 " ParallelGroup createParallelGroup(int i) {return null;}\n" + |
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73 " ParallelGroup createParallelGroup(int i, int j) {return null;}\n" + |
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74 " void setHorizontalGroup(Group g) { }\n" + |
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75 " }\n" + |
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76 " \n" + |
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77 " class Group {\n" + |
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78 " Group addGroup(Group g) { return this; }\n" + |
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79 " Group addGroup(int i, Group g) { return this; }\n" + |
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80 " Group addGap(int i) { return this; }\n" + |
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81 " Group addGap(long l) { return this; }\n" + |
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82 " Group addGap(int i, int j) { return this; }\n" + |
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83 " Group addComponent(Object c) { return this; }\n" + |
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84 " Group addComponent(int i, Object c) { return this; }\n" + |
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85 " }\n" + |
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86 " class ParallelGroup extends Group {\n" + |
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87 " Group addGroup(Group g) { return this; }\n" + |
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88 " Group addGroup(int i, Group g) { return this; }\n" + |
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89 " Group addGap(int i) { return this; }\n" + |
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90 " Group addGap(int i, int j) { return this; }\n" + |
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91 " Group addComponent(Object c) { return this; }\n" + |
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92 " Group addComponent(int i, Object c) { return this; }\n" + |
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93 " }\n"); |
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94 } |
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95 |
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96 code.append("}\n"); |
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97 |
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98 JavaSource source = new JavaSource(code.toString()); |
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99 List<JavaSource> sourceList = Arrays.asList(source); |
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100 JavaCompiler compiler = ToolProvider.getSystemJavaCompiler(); |
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101 DiagnosticListener<JavaFileObject> noErrors = (diagnostic) -> { |
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102 throw new IllegalStateException("Should not produce errors: " + diagnostic); |
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103 }; |
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104 JavacTask task = (JavacTask) compiler.getTask(null, null, withErrors ? null : noErrors, |
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105 null, null, sourceList); |
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106 |
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107 task.analyze(); |
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108 } |
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109 |
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110 private void gen(StringBuilder code, int depth) { |
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111 code.append("l.createParallelGroup()\n"); |
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112 if (depth > 0) { |
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113 code.append(".addGroup(\n"); |
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114 gen(code, depth - 1); |
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115 code.append(")"); |
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116 } |
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117 |
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118 code.append(".addGap(1)\n" + |
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119 ".addComponent(new Object())\n" + |
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120 ".addGap(1)\n" + |
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121 ".addComponent(new Object())"); |
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122 } |
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123 |
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124 class JavaSource extends SimpleJavaFileObject { |
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125 |
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126 final String code; |
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127 public JavaSource(String code) { |
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128 super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); |
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129 this.code = code; |
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130 } |
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131 |
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132 @Override |
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133 public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
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134 return code; |
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135 } |
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136 } |
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137 } |