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1 /* |
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2 * Copyright (c) 2010, 2012, 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 * @summary javac should generate method parameters correctly. |
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27 */ |
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28 |
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29 import java.io.*; |
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30 import java.util.*; |
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31 |
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32 public class MethodParameters { |
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33 |
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34 static final String Foo_name = "Foo"; |
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35 static final String Foo_contents = |
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36 ("public class Foo {\n" + |
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37 " Foo() {}\n" + |
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38 " Foo(int i) {}\n" + |
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39 " void foo0() {}\n" + |
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40 " void foo2(int j, int k) {}\n" + |
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41 "}").replaceAll(" +", " "); |
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42 static final String Init0_expected = |
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43 (" Foo();\n" + |
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44 " flags: \n" + |
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45 " Code:\n" + |
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46 " stack=1, locals=1, args_size=1\n" + |
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47 " 0: aload_0 \n" + |
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48 " 1: invokespecial #1 // Method java/lang/Object.\"<init>\":()V\n" + |
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49 " 4: return \n" + |
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50 " LineNumberTable:\n" + |
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51 " line 2: 0").replaceAll(" +", " "); |
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52 static final String Init1_expected = |
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53 (" Foo(int);\n" + |
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54 " flags: \n" + |
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55 " Code:\n" + |
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56 " stack=1, locals=2, args_size=2\n" + |
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57 " 0: aload_0 \n" + |
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58 " 1: invokespecial #1 // Method java/lang/Object.\"<init>\":()V\n" + |
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59 " 4: return \n" + |
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60 " LineNumberTable:\n" + |
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61 " line 3: 0\n" + |
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62 " MethodParameters:\n" + |
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63 " Name Flags\n" + |
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64 " i").replaceAll(" +", " "); |
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65 static final String foo0_expected = |
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66 (" void foo0();\n" + |
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67 " flags: \n" + |
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68 " Code:\n" + |
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69 " stack=0, locals=1, args_size=1\n" + |
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70 " 0: return \n" + |
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71 " LineNumberTable:\n" + |
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72 " line 4: 0").replaceAll(" +", " "); |
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73 static final String foo2_expected = |
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74 (" void foo2(int, int);\n" + |
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75 " flags: \n" + |
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76 " Code:\n" + |
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77 " stack=0, locals=3, args_size=3\n" + |
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78 " 0: return \n" + |
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79 " LineNumberTable:\n" + |
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80 " line 5: 0\n" + |
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81 " MethodParameters:\n" + |
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82 " Name Flags\n" + |
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83 " j \n" + |
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84 " k").replaceAll(" +", " "); |
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85 |
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86 static final File classesdir = new File("methodparameters"); |
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87 static final String separator = System.getProperty("line.separator"); |
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88 |
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89 public static void main(String... args) throws Exception { |
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90 new MethodParameters().run(); |
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91 } |
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92 |
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93 void run() throws Exception { |
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94 classesdir.mkdir(); |
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95 final File Foo_java = |
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96 writeFile(classesdir, Foo_name + ".java", Foo_contents); |
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97 compile("-parameters", "-d", classesdir.getPath(), Foo_java.getPath()); |
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98 System.out.println("Run javap"); |
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99 String output = |
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100 javap("-c", "-verbose", "-classpath", |
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101 classesdir.getPath(), Foo_name); |
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102 String normalized = |
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103 output.replaceAll(separator, "\n").replaceAll(" +", " "); |
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104 |
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105 if (!normalized.contains(Init0_expected)) |
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106 error("Bad output for zero-parameter constructor. Expected\n" + |
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107 Init0_expected + "\n" + "but got\n" + normalized); |
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108 if (!normalized.contains(Init1_expected)) |
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109 error("Bad output for one-parameter constructor. Expected\n" + |
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110 Init1_expected + "\n" + "but got\n" + normalized); |
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111 if (!normalized.contains(foo0_expected)) |
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112 error("Bad output for zero-parameter method. Expected\n" + |
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113 foo0_expected + "\n" + "but got\n" + normalized); |
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114 if (!normalized.contains(foo2_expected)) |
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115 error("Bad output for two-parameter method Expected\n" + |
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116 foo2_expected + "\n" + "but got\n" + normalized); |
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117 |
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118 if (0 != errors) |
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119 throw new Exception("MethodParameters test failed with " + |
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120 errors + " errors"); |
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121 } |
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122 |
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123 String javap(String... args) { |
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124 StringWriter sw = new StringWriter(); |
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125 PrintWriter out = new PrintWriter(sw); |
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126 //sun.tools.javap.Main.entry(args); |
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127 int rc = com.sun.tools.javap.Main.run(args, out); |
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128 if (rc != 0) |
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129 throw new Error("javap failed. rc=" + rc); |
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130 out.close(); |
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131 System.out.println(sw); |
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132 return sw.toString(); |
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133 } |
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134 |
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135 String compile(String... args) throws Exception { |
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136 System.err.println("compile: " + Arrays.asList(args)); |
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137 StringWriter sw = new StringWriter(); |
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138 PrintWriter pw = new PrintWriter(sw); |
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139 int rc = com.sun.tools.javac.Main.compile(args, pw); |
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140 pw.close(); |
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141 String out = sw.toString(); |
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142 if (out.length() > 0) |
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143 System.err.println(out); |
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144 if (rc != 0) |
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145 error("compilation failed, rc=" + rc); |
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146 return out; |
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147 } |
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148 |
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149 File writeFile(File dir, String path, String body) throws IOException { |
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150 File f = new File(dir, path); |
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151 f.getParentFile().mkdirs(); |
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152 FileWriter out = new FileWriter(f); |
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153 out.write(body); |
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154 out.close(); |
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155 return f; |
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156 } |
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157 |
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158 void error(String msg) { |
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159 System.err.println("Error: " + msg); |
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160 errors++; |
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161 } |
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162 |
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163 int errors; |
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164 |
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165 } |