1 // Copyright 2008 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 // Flags: --expose-debug-as debug 29 function a() { b(); }; 30 function b() { 31 c(true); 32 }; 33 function c(x) { 34 if (x) { 35 return 1; 36 } else { 37 return 1; 38 } 39 }; 40 function d(x) { 41 x = 1 ; 42 x = 2 ; 43 x = 3 ; 44 x = 4 ; 45 x = 5 ; 46 x = 6 ; 47 x = 7 ; 48 x = 8 ; 49 x = 9 ; 50 x = 10; 51 x = 11; 52 x = 12; 53 x = 13; 54 x = 14; 55 x = 15; 56 } 57 58 // Get the Debug object exposed from the debug context global object. 59 Debug = debug.Debug 60 61 // This is the number of comment lines above the first test function. 62 var comment_lines = 28; 63 64 // This is the last position in the entire file (note: this equals 65 // file size of <debug-sourceinfo.js> - 1, since starting at 0). 66 var last_position = 11519; 67 // This is the last line of entire file (note: starting at 0). 68 var last_line = 269; 69 // This is the last column of last line (note: starting at 0 and +1, due 70 // to trailing <LF>). 71 var last_column = 1; 72 73 // This magic number is the length or the first line comment (actually number 74 // of characters before 'function a(...'. 75 var comment_line_length = 1633; 76 var start_a = 9 + comment_line_length; 77 var start_b = 35 + comment_line_length; 78 var start_c = 66 + comment_line_length; 79 var start_d = 151 + comment_line_length; 80 81 // The position of the first line of d(), i.e. "x = 1 ;". 82 var start_code_d = start_d + 6; 83 // The line # of the first line of d() (note: starting at 0). 84 var start_line_d = 40; 85 var line_length_d = 10; 86 var num_lines_d = 15; 87 88 assertEquals(start_a, Debug.sourcePosition(a)); 89 assertEquals(start_b, Debug.sourcePosition(b)); 90 assertEquals(start_c, Debug.sourcePosition(c)); 91 assertEquals(start_d, Debug.sourcePosition(d)); 92 93 var script = Debug.findScript(a); 94 assertTrue(script.data === Debug.findScript(b).data); 95 assertTrue(script.data === Debug.findScript(c).data); 96 assertTrue(script.data === Debug.findScript(d).data); 97 assertTrue(script.source === Debug.findScript(b).source); 98 assertTrue(script.source === Debug.findScript(c).source); 99 assertTrue(script.source === Debug.findScript(d).source); 100 101 // Test that when running through source positions the position, line and 102 // column progresses as expected. 103 var position; 104 var line; 105 var column; 106 for (var p = 0; p < 100; p++) { 107 var location = script.locationFromPosition(p); 108 if (p > 0) { 109 assertEquals(position + 1, location.position); 110 if (line == location.line) { 111 assertEquals(column + 1, location.column); 112 } else { 113 assertEquals(line + 1, location.line); 114 assertEquals(0, location.column); 115 } 116 } else { 117 assertEquals(0, location.position); 118 assertEquals(0, location.line); 119 assertEquals(0, location.column); 120 } 121 122 // Remember the location. 123 position = location.position; 124 line = location.line; 125 column = location.column; 126 } 127 128 // Every line of d() is the same length. Verify we can loop through all 129 // positions and find the right line # for each. 130 var p = start_code_d; 131 for (line = 0; line < num_lines_d; line++) { 132 for (column = 0; column < line_length_d; column++) { 133 var location = script.locationFromPosition(p); 134 assertEquals(p, location.position); 135 assertEquals(start_line_d + line, location.line); 136 assertEquals(column, location.column); 137 p++; 138 } 139 } 140 141 // Test first position. 142 assertEquals(0, script.locationFromPosition(0).position); 143 assertEquals(0, script.locationFromPosition(0).line); 144 assertEquals(0, script.locationFromPosition(0).column); 145 146 // Test second position. 147 assertEquals(1, script.locationFromPosition(1).position); 148 assertEquals(0, script.locationFromPosition(1).line); 149 assertEquals(1, script.locationFromPosition(1).column); 150 151 // Test first position in function a(). 152 assertEquals(start_a, script.locationFromPosition(start_a).position); 153 assertEquals(0, script.locationFromPosition(start_a).line - comment_lines); 154 assertEquals(10, script.locationFromPosition(start_a).column); 155 156 // Test first position in function b(). 157 assertEquals(start_b, script.locationFromPosition(start_b).position); 158 assertEquals(1, script.locationFromPosition(start_b).line - comment_lines); 159 assertEquals(13, script.locationFromPosition(start_b).column); 160 161 // Test first position in function c(). 162 assertEquals(start_c, script.locationFromPosition(start_c).position); 163 assertEquals(4, script.locationFromPosition(start_c).line - comment_lines); 164 assertEquals(12, script.locationFromPosition(start_c).column); 165 166 // Test first position in function d(). 167 assertEquals(start_d, script.locationFromPosition(start_d).position); 168 assertEquals(11, script.locationFromPosition(start_d).line - comment_lines); 169 assertEquals(10, script.locationFromPosition(start_d).column); 170 171 // Test first line. 172 assertEquals(0, script.locationFromLine().position); 173 assertEquals(0, script.locationFromLine().line); 174 assertEquals(0, script.locationFromLine().column); 175 assertEquals(0, script.locationFromLine(0).position); 176 assertEquals(0, script.locationFromLine(0).line); 177 assertEquals(0, script.locationFromLine(0).column); 178 179 // Test first line column 1. 180 assertEquals(1, script.locationFromLine(0, 1).position); 181 assertEquals(0, script.locationFromLine(0, 1).line); 182 assertEquals(1, script.locationFromLine(0, 1).column); 183 184 // Test first line offset 1. 185 assertEquals(1, script.locationFromLine(0, 0, 1).position); 186 assertEquals(0, script.locationFromLine(0, 0, 1).line); 187 assertEquals(1, script.locationFromLine(0, 0, 1).column); 188 189 // Test offset function a(). 190 assertEquals(start_a, script.locationFromLine(void 0, void 0, start_a).position); 191 assertEquals(0, script.locationFromLine(void 0, void 0, start_a).line - comment_lines); 192 assertEquals(10, script.locationFromLine(void 0, void 0, start_a).column); 193 assertEquals(start_a, script.locationFromLine(0, void 0, start_a).position); 194 assertEquals(0, script.locationFromLine(0, void 0, start_a).line - comment_lines); 195 assertEquals(10, script.locationFromLine(0, void 0, start_a).column); 196 assertEquals(start_a, script.locationFromLine(0, 0, start_a).position); 197 assertEquals(0, script.locationFromLine(0, 0, start_a).line - comment_lines); 198 assertEquals(10, script.locationFromLine(0, 0, start_a).column); 199 200 // Test second line offset function a(). 201 assertEquals(start_a + 13, script.locationFromLine(1, 0, start_a).position); 202 assertEquals(1, script.locationFromLine(1, 0, start_a).line - comment_lines); 203 assertEquals(0, script.locationFromLine(1, 0, start_a).column); 204 205 // Test second line column 2 offset function a(). 206 assertEquals(start_a + 13 + 1, script.locationFromLine(1, 1, start_a).position); 207 assertEquals(1, script.locationFromLine(1, 2, start_a).line - comment_lines); 208 assertEquals(2, script.locationFromLine(1, 2, start_a).column); 209 210 // Test offset function b(). 211 assertEquals(start_b, script.locationFromLine(0, 0, start_b).position); 212 assertEquals(1, script.locationFromLine(0, 0, start_b).line - comment_lines); 213 assertEquals(13, script.locationFromLine(0, 0, start_b).column); 214 215 // Test second line offset function b(). 216 assertEquals(start_b + 5, script.locationFromLine(1, 0, start_b).position); 217 assertEquals(2, script.locationFromLine(1, 0, start_b).line - comment_lines); 218 assertEquals(0, script.locationFromLine(1, 0, start_b).column); 219 220 // Test second line column 10 offset function b(). 221 assertEquals(start_b + 5 + 10, script.locationFromLine(1, 10, start_b).position); 222 assertEquals(2, script.locationFromLine(1, 10, start_b).line - comment_lines); 223 assertEquals(10, script.locationFromLine(1, 10, start_b).column); 224 225 // Test second line column 11 offset function b. Second line in b is 10 long 226 // using column 11 wraps to next line. 227 assertEquals(start_b + 5 + 11, script.locationFromLine(1, 11, start_b).position); 228 assertEquals(3, script.locationFromLine(1, 11, start_b).line - comment_lines); 229 assertEquals(0, script.locationFromLine(1, 11, start_b).column); 230 231 // Test the Debug.findSourcePosition which wraps SourceManager. 232 assertEquals(0 + start_a, Debug.findFunctionSourceLocation(a, 0, 0).position); 233 assertEquals(0 + start_b, Debug.findFunctionSourceLocation(b, 0, 0).position); 234 assertEquals(5 + start_b, Debug.findFunctionSourceLocation(b, 1, 0).position); 235 assertEquals(7 + start_b, Debug.findFunctionSourceLocation(b, 1, 2).position); 236 assertEquals(16 + start_b, Debug.findFunctionSourceLocation(b, 2, 0).position); 237 assertEquals(0 + start_c, Debug.findFunctionSourceLocation(c, 0, 0).position); 238 assertEquals(6 + start_c, Debug.findFunctionSourceLocation(c, 1, 0).position); 239 assertEquals(19 + start_c, Debug.findFunctionSourceLocation(c, 2, 0).position); 240 assertEquals(35 + start_c, Debug.findFunctionSourceLocation(c, 3, 0).position); 241 assertEquals(48 + start_c, Debug.findFunctionSourceLocation(c, 4, 0).position); 242 assertEquals(64 + start_c, Debug.findFunctionSourceLocation(c, 5, 0).position); 243 assertEquals(70 + start_c, Debug.findFunctionSourceLocation(c, 6, 0).position); 244 assertEquals(0 + start_d, Debug.findFunctionSourceLocation(d, 0, 0).position); 245 assertEquals(6 + start_d, Debug.findFunctionSourceLocation(d, 1, 0).position); 246 for (i = 1; i <= num_lines_d; i++) { 247 assertEquals(6 + (i * line_length_d) + start_d, 248 Debug.findFunctionSourceLocation(d, (i + 1), 0).position); 249 } 250 assertEquals(158 + start_d, Debug.findFunctionSourceLocation(d, 17, 0).position); 251 252 // Make sure invalid inputs work properly. 253 assertEquals(0, script.locationFromPosition(-1).line); 254 assertEquals(null, script.locationFromPosition(last_position + 2)); 255 256 // Test last position. 257 assertEquals(last_position, script.locationFromPosition(last_position).position); 258 assertEquals(last_line, script.locationFromPosition(last_position).line); 259 assertEquals(last_column, script.locationFromPosition(last_position).column); 260 assertEquals(last_line + 1, 261 script.locationFromPosition(last_position + 1).line); 262 assertEquals(0, script.locationFromPosition(last_position + 1).column); 263 264 // Test that script.sourceLine(line) works. 265 var location; 266 267 for (line = 0; line < num_lines_d; line++) { 268 var line_content_regexp = new RegExp(" x = " + (line + 1)); 269 assertTrue(line_content_regexp.test(script.sourceLine(start_line_d + line))); 270 } 271
