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1 /*
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2 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
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3 * code is released under a tri EPL/GPL/LGPL license. You can use it,
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4 * redistribute it and/or modify it under the terms of the:
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5 *
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6 * Eclipse Public License version 1.0
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7 * GNU General Public License version 2
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8 * GNU Lesser General Public License version 2.1
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9 */
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10 package com.oracle.truffle.ruby.nodes.core;
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11
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12 import java.io.*;
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13
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14 import com.oracle.truffle.api.*;
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15 import com.oracle.truffle.api.dsl.*;
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16 import com.oracle.truffle.api.frame.*;
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17 import com.oracle.truffle.ruby.runtime.*;
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18 import com.oracle.truffle.ruby.runtime.core.*;
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19 import com.oracle.truffle.ruby.runtime.core.array.*;
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20
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21 @CoreClass(name = "File")
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22 public abstract class FileNodes {
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23
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24 @CoreMethod(names = "absolute_path", isModuleMethod = true, needsSelf = false, minArgs = 1, maxArgs = 1)
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25 public abstract static class AbsolutePathNode extends CoreMethodNode {
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26
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27 public AbsolutePathNode(RubyContext context, SourceSection sourceSection) {
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28 super(context, sourceSection);
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29 }
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30
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31 public AbsolutePathNode(AbsolutePathNode prev) {
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32 super(prev);
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33 }
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34
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35 @Specialization
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36 public RubyString absolutePath(RubyString path) {
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37 return getContext().makeString(new File(path.toString()).getAbsolutePath());
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38 }
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39
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40 }
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41
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42 @CoreMethod(names = "close", maxArgs = 0)
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43 public abstract static class CloseNode extends CoreMethodNode {
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44
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45 public CloseNode(RubyContext context, SourceSection sourceSection) {
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46 super(context, sourceSection);
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47 }
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48
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49 public CloseNode(CloseNode prev) {
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50 super(prev);
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51 }
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52
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53 @Specialization
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54 public NilPlaceholder close(RubyFile file) {
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55 file.close();
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56 return NilPlaceholder.INSTANCE;
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57 }
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58
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59 }
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60
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61 @CoreMethod(names = "directory?", isModuleMethod = true, needsSelf = false, maxArgs = 1)
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62 public abstract static class DirectoryNode extends CoreMethodNode {
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63
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64 public DirectoryNode(RubyContext context, SourceSection sourceSection) {
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65 super(context, sourceSection);
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66 }
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67
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68 public DirectoryNode(DirectoryNode prev) {
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69 super(prev);
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70 }
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71
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72 @Specialization
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73 public boolean directory(RubyString path) {
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74 return new File(path.toString()).isDirectory();
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75 }
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76
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77 }
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78
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79 @CoreMethod(names = "dirname", isModuleMethod = true, needsSelf = false, minArgs = 1, maxArgs = 1)
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80 public abstract static class DirnameNode extends CoreMethodNode {
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81
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82 public DirnameNode(RubyContext context, SourceSection sourceSection) {
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83 super(context, sourceSection);
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84 }
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85
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86 public DirnameNode(DirnameNode prev) {
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87 super(prev);
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88 }
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89
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90 @Specialization
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91 public RubyString dirname(RubyString path) {
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92 final String parent = new File(path.toString()).getParent();
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93
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94 if (parent == null) {
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95 return getContext().makeString(".");
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96 } else {
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97 return getContext().makeString(parent);
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98 }
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99 }
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100
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101 }
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102
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103 @CoreMethod(names = "each_line", needsBlock = true, maxArgs = 0)
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104 public abstract static class EachLineNode extends YieldingCoreMethodNode {
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105
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106 public EachLineNode(RubyContext context, SourceSection sourceSection) {
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107 super(context, sourceSection);
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108 }
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109
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110 public EachLineNode(EachLineNode prev) {
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111 super(prev);
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112 }
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113
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114 @Specialization
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115 public NilPlaceholder eachLine(VirtualFrame frame, RubyFile file, RubyProc block) {
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116 final RubyContext context = getContext();
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117
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118 // TODO(cs): this buffered reader may consume too much
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119
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120 final BufferedReader lineReader = new BufferedReader(file.getReader());
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121
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122 while (true) {
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123 String line;
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124
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125 try {
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126 line = lineReader.readLine();
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127 } catch (IOException e) {
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128 throw new RuntimeException(e);
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129 }
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130
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131 if (line == null) {
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132 break;
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133 }
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134
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135 yield(frame, block, context.makeString(line));
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136 }
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137
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138 return NilPlaceholder.INSTANCE;
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139 }
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140
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141 }
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142
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143 @CoreMethod(names = {"exist?", "exists?"}, isModuleMethod = true, needsSelf = false, minArgs = 1, maxArgs = 1)
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144 public abstract static class ExistsNode extends CoreMethodNode {
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145
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146 public ExistsNode(RubyContext context, SourceSection sourceSection) {
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147 super(context, sourceSection);
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148 }
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149
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150 public ExistsNode(ExistsNode prev) {
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151 super(prev);
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152 }
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153
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154 @Specialization
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155 public boolean exists(RubyString path) {
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156 return new File(path.toString()).isFile();
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157 }
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158
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159 }
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160
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161 @CoreMethod(names = "executable?", isModuleMethod = true, needsSelf = false, minArgs = 1, maxArgs = 1)
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162 public abstract static class ExecutableNode extends CoreMethodNode {
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163
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164 public ExecutableNode(RubyContext context, SourceSection sourceSection) {
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165 super(context, sourceSection);
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166 }
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167
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168 public ExecutableNode(ExecutableNode prev) {
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169 super(prev);
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170 }
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171
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172 @Specialization
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173 public boolean executable(RubyString path) {
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174 return new File(path.toString()).canExecute();
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175 }
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176
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177 }
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178
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179 @CoreMethod(names = "expand_path", isModuleMethod = true, needsSelf = false, minArgs = 1, maxArgs = 2)
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180 public abstract static class ExpandPathNode extends CoreMethodNode {
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181
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182 public ExpandPathNode(RubyContext context, SourceSection sourceSection) {
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183 super(context, sourceSection);
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184 }
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185
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186 public ExpandPathNode(ExpandPathNode prev) {
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187 super(prev);
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188 }
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189
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190 @Specialization
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191 public RubyString expandPath(RubyString path, @SuppressWarnings("unused") UndefinedPlaceholder dir) {
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192 return getContext().makeString(RubyFile.expandPath(path.toString()));
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193 }
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194
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195 @Specialization
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196 public RubyString expandPath(RubyString path, RubyString dir) {
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197 return getContext().makeString(RubyFile.expandPath(path.toString(), dir.toString()));
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198 }
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199
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200 }
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201
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202 @CoreMethod(names = "file?", isModuleMethod = true, needsSelf = false, minArgs = 1, maxArgs = 1)
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203 public abstract static class FileNode extends CoreMethodNode {
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204
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205 public FileNode(RubyContext context, SourceSection sourceSection) {
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206 super(context, sourceSection);
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207 }
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208
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209 public FileNode(FileNode prev) {
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210 super(prev);
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211 }
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212
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213 @Specialization
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214 public boolean file(RubyString path) {
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215 return new File(path.toString()).isFile();
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216 }
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217
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218 }
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219
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220 @CoreMethod(names = "join", isModuleMethod = true, needsSelf = false, isSplatted = true)
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221 public abstract static class JoinNode extends CoreMethodNode {
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222
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223 public JoinNode(RubyContext context, SourceSection sourceSection) {
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224 super(context, sourceSection);
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225 }
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226
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227 public JoinNode(JoinNode prev) {
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228 super(prev);
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229 }
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230
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231 @Specialization
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232 public RubyString join(Object[] parts) {
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233 return getContext().makeString(RubyArray.join(parts, File.separator));
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234 }
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235 }
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236
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237 @CoreMethod(names = "open", isModuleMethod = true, needsSelf = false, needsBlock = true, minArgs = 2, maxArgs = 2)
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238 public abstract static class OpenNode extends YieldingCoreMethodNode {
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239
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240 public OpenNode(RubyContext context, SourceSection sourceSection) {
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241 super(context, sourceSection);
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242 }
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243
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244 public OpenNode(OpenNode prev) {
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245 super(prev);
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246 }
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247
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248 @Specialization
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249 public Object open(VirtualFrame frame, RubyString fileName, RubyString mode, RubyProc block) {
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250 final RubyFile file = RubyFile.open(getContext(), fileName.toString(), mode.toString());
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251
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252 if (block != null) {
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253 try {
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254 yield(frame, block, file);
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255 } finally {
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256 file.close();
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257 }
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258 }
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259
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260 return file;
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261 }
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262
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263 }
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264
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265 @CoreMethod(names = "write", maxArgs = 0)
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266 public abstract static class WriteNode extends CoreMethodNode {
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267
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268 public WriteNode(RubyContext context, SourceSection sourceSection) {
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269 super(context, sourceSection);
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270 }
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271
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272 public WriteNode(WriteNode prev) {
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273 super(prev);
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274 }
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275
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276 @Specialization
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277 public NilPlaceholder write(RubyFile file, RubyString string) {
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278 try {
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279 final Writer writer = file.getWriter();
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280 writer.write(string.toString());
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281 writer.flush();
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282 } catch (IOException e) {
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283 throw new RuntimeException(e);
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284 }
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285
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286 return NilPlaceholder.INSTANCE;
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287 }
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288
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289 }
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290
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291 }
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