JezK
Edit File: debug-sourceinfo.js
// Copyright 2008 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Flags: --expose-debug-as debug // For this test to work this file MUST have CR LF line endings. function a() { b(); }; function b() { c(true); }; function c(x) { if (x) { return 1; } else { return 1; } }; function d(x) { x = 1 ; x = 2 ; x = 3 ; x = 4 ; x = 5 ; x = 6 ; x = 7 ; x = 8 ; x = 9 ; x = 10; x = 11; x = 12; x = 13; x = 14; x = 15; } // Get the Debug object exposed from the debug context global object. Debug = debug.Debug // This is the number of comment lines above the first test function. var comment_lines = 29; // This is the last position in the entire file (note: this equals // file size of <debug-sourceinfo.js> - 1, since starting at 0). var last_position = 14312; // This is the last line of entire file (note: starting at 0). var last_line = 351; // This is the last column of last line (note: starting at 0 and +2, due // to trailing <CR><LF>). var last_column = 2; // This magic number is the length or the first line comment (actually number // of characters before 'function a(...'. var comment_line_length = 1726; var start_a = 10 + comment_line_length; var start_b = 37 + comment_line_length; var start_c = 71 + comment_line_length; var start_d = 163 + comment_line_length; // The position of the first line of d(), i.e. "x = 1 ;". var start_code_d = start_d + 7; // The line # of the first line of d() (note: starting at 0). var start_line_d = 41; var line_length_d = 11; var num_lines_d = 15; assertEquals(start_a, Debug.sourcePosition(a)); assertEquals(start_b, Debug.sourcePosition(b)); assertEquals(start_c, Debug.sourcePosition(c)); assertEquals(start_d, Debug.sourcePosition(d)); var script = Debug.findScript(a); assertTrue(script.data === Debug.findScript(b).data); assertTrue(script.data === Debug.findScript(c).data); assertTrue(script.data === Debug.findScript(d).data); assertTrue(script.source === Debug.findScript(b).source); assertTrue(script.source === Debug.findScript(c).source); assertTrue(script.source === Debug.findScript(d).source); // Test that when running through source positions the position, line and // column progresses as expected. var position; var line; var column; for (var p = 0; p < 100; p++) { var location = script.locationFromPosition(p); if (p > 0) { assertEquals(position + 1, location.position); if (line == location.line) { assertEquals(column + 1, location.column); } else { assertEquals(line + 1, location.line); assertEquals(0, location.column); } } else { assertEquals(0, location.position); assertEquals(0, location.line); assertEquals(0, location.column); } // Remember the location. position = location.position; line = location.line; column = location.column; } // Every line of d() is the same length. Verify we can loop through all // positions and find the right line # for each. var p = start_code_d; for (line = 0; line < num_lines_d; line++) { for (column = 0; column < line_length_d; column++) { var location = script.locationFromPosition(p); assertEquals(p, location.position); assertEquals(start_line_d + line, location.line); assertEquals(column, location.column); p++; } } // Test first position. assertEquals(0, script.locationFromPosition(0).position); assertEquals(0, script.locationFromPosition(0).line); assertEquals(0, script.locationFromPosition(0).column); // Test second position. assertEquals(1, script.locationFromPosition(1).position); assertEquals(0, script.locationFromPosition(1).line); assertEquals(1, script.locationFromPosition(1).column); // Test first position in function a(). assertEquals(start_a, script.locationFromPosition(start_a).position); assertEquals(0, script.locationFromPosition(start_a).line - comment_lines); assertEquals(10, script.locationFromPosition(start_a).column); // Test first position in function b(). assertEquals(start_b, script.locationFromPosition(start_b).position); assertEquals(1, script.locationFromPosition(start_b).line - comment_lines); assertEquals(13, script.locationFromPosition(start_b).column); // Test first position in function c(). assertEquals(start_c, script.locationFromPosition(start_c).position); assertEquals(4, script.locationFromPosition(start_c).line - comment_lines); assertEquals(12, script.locationFromPosition(start_c).column); // Test first position in function d(). assertEquals(start_d, script.locationFromPosition(start_d).position); assertEquals(11, script.locationFromPosition(start_d).line - comment_lines); assertEquals(10, script.locationFromPosition(start_d).column); // Test first line. assertEquals(0, script.locationFromLine().position); assertEquals(0, script.locationFromLine().line); assertEquals(0, script.locationFromLine().column); assertEquals(0, script.locationFromLine(0).position); assertEquals(0, script.locationFromLine(0).line); assertEquals(0, script.locationFromLine(0).column); // Test first line column 1. assertEquals(1, script.locationFromLine(0, 1).position); assertEquals(0, script.locationFromLine(0, 1).line); assertEquals(1, script.locationFromLine(0, 1).column); // Test first line offset 1. assertEquals(1, script.locationFromLine(0, 0, 1).position); assertEquals(0, script.locationFromLine(0, 0, 1).line); assertEquals(1, script.locationFromLine(0, 0, 1).column); // Test offset function a(). assertEquals(start_a, script.locationFromLine(void 0, void 0, start_a).position); assertEquals(0, script.locationFromLine(void 0, void 0, start_a).line - comment_lines); assertEquals(10, script.locationFromLine(void 0, void 0, start_a).column); assertEquals(start_a, script.locationFromLine(0, void 0, start_a).position); assertEquals(0, script.locationFromLine(0, void 0, start_a).line - comment_lines); assertEquals(10, script.locationFromLine(0, void 0, start_a).column); assertEquals(start_a, script.locationFromLine(0, 0, start_a).position); assertEquals(0, script.locationFromLine(0, 0, start_a).line - comment_lines); assertEquals(10, script.locationFromLine(0, 0, start_a).column); // Test second line offset function a(). assertEquals(start_a + 14, script.locationFromLine(1, 0, start_a).position); assertEquals(1, script.locationFromLine(1, 0, start_a).line - comment_lines); assertEquals(0, script.locationFromLine(1, 0, start_a).column); // Test second line column 2 offset function a(). assertEquals(start_a + 14 + 2, script.locationFromLine(1, 2, start_a).position); assertEquals(1, script.locationFromLine(1, 2, start_a).line - comment_lines); assertEquals(2, script.locationFromLine(1, 2, start_a).column); // Test offset function b(). assertEquals(start_b, script.locationFromLine(0, 0, start_b).position); assertEquals(1, script.locationFromLine(0, 0, start_b).line - comment_lines); assertEquals(13, script.locationFromLine(0, 0, start_b).column); // Test second line offset function b(). assertEquals(start_b + 6, script.locationFromLine(1, 0, start_b).position); assertEquals(2, script.locationFromLine(1, 0, start_b).line - comment_lines); assertEquals(0, script.locationFromLine(1, 0, start_b).column); // Test second line column 11 offset function b(). assertEquals(start_b + 6 + 11, script.locationFromLine(1, 11, start_b).position); assertEquals(2, script.locationFromLine(1, 11, start_b).line - comment_lines); assertEquals(11, script.locationFromLine(1, 11, start_b).column); // Test second line column 12 offset function b. Second line in b is 11 long // using column 12 wraps to next line. assertEquals(start_b + 6 + 12, script.locationFromLine(1, 12, start_b).position); assertEquals(3, script.locationFromLine(1, 12, start_b).line - comment_lines); assertEquals(0, script.locationFromLine(1, 12, start_b).column); // Test the Debug.findSourcePosition which wraps SourceManager. assertEquals(0 + start_a, Debug.findFunctionSourceLocation(a, 0, 0).position); assertEquals(0 + start_b, Debug.findFunctionSourceLocation(b, 0, 0).position); assertEquals(6 + start_b, Debug.findFunctionSourceLocation(b, 1, 0).position); assertEquals(8 + start_b, Debug.findFunctionSourceLocation(b, 1, 2).position); assertEquals(18 + start_b, Debug.findFunctionSourceLocation(b, 2, 0).position); assertEquals(0 + start_c, Debug.findFunctionSourceLocation(c, 0, 0).position); assertEquals(7 + start_c, Debug.findFunctionSourceLocation(c, 1, 0).position); assertEquals(21 + start_c, Debug.findFunctionSourceLocation(c, 2, 0).position); assertEquals(38 + start_c, Debug.findFunctionSourceLocation(c, 3, 0).position); assertEquals(52 + start_c, Debug.findFunctionSourceLocation(c, 4, 0).position); assertEquals(69 + start_c, Debug.findFunctionSourceLocation(c, 5, 0).position); assertEquals(76 + start_c, Debug.findFunctionSourceLocation(c, 6, 0).position); assertEquals(0 + start_d, Debug.findFunctionSourceLocation(d, 0, 0).position); assertEquals(7 + start_d, Debug.findFunctionSourceLocation(d, 1, 0).position); for (i = 1; i <= num_lines_d; i++) { assertEquals(7 + (i * line_length_d) + start_d, Debug.findFunctionSourceLocation(d, (i + 1), 0).position); } assertEquals(175 + start_d, Debug.findFunctionSourceLocation(d, 17, 0).position); // Make sure invalid inputs work properly. assertEquals(0, script.locationFromPosition(-1).line); assertEquals(null, script.locationFromPosition(last_position + 1)); // Test last position. assertEquals(last_position, script.locationFromPosition(last_position).position); assertEquals(last_line, script.locationFromPosition(last_position).line); assertEquals(last_column, script.locationFromPosition(last_position).column); // Test source line and restriction. All the following tests start from line 1 // column 2 in function b, which is the call to c. // c(true); // ^ var location; location = script.locationFromLine(1, 0, start_b); assertEquals(' c(true);', location.sourceText()); result = ['c', ' c', ' c(', ' c(', ' c(t'] for (var i = 1; i <= 5; i++) { location = script.locationFromLine(1, 2, start_b); location.restrict(i); assertEquals(result[i - 1], location.sourceText()); } location = script.locationFromLine(1, 2, start_b); location.restrict(1, 0); assertEquals('c', location.sourceText()); location = script.locationFromLine(1, 2, start_b); location.restrict(2, 0); assertEquals('c(', location.sourceText()); location = script.locationFromLine(1, 2, start_b); location.restrict(2, 1); assertEquals(' c', location.sourceText()); location = script.locationFromLine(1, 2, start_b); location.restrict(2, 2); assertEquals(' c', location.sourceText()); location = script.locationFromLine(1, 2, start_b); location.restrict(2, 3); assertEquals(' c', location.sourceText()); location = script.locationFromLine(1, 2, start_b); location.restrict(3, 1); assertEquals(' c(', location.sourceText()); location = script.locationFromLine(1, 2, start_b); location.restrict(5, 0); assertEquals('c(tru', location.sourceText()); location = script.locationFromLine(1, 2, start_b); location.restrict(5, 2); assertEquals(' c(t', location.sourceText()); location = script.locationFromLine(1, 2, start_b); location.restrict(5, 4); assertEquals(' c(t', location.sourceText()); // All the following tests start from line 1 column 10 in function b, which is // the final character. // c(true); // ^ location = script.locationFromLine(1, 10, start_b); location.restrict(5, 0); assertEquals('rue);', location.sourceText()); location = script.locationFromLine(1, 10, start_b); location.restrict(7, 0); assertEquals('(true);', location.sourceText()); // All the following tests start from line 1 column 0 in function b, which is // the first character. // c(true); //^ location = script.locationFromLine(1, 0, start_b); location.restrict(5, 0); assertEquals(' c(t', location.sourceText()); location = script.locationFromLine(1, 0, start_b); location.restrict(5, 4); assertEquals(' c(t', location.sourceText()); location = script.locationFromLine(1, 0, start_b); location.restrict(7, 0); assertEquals(' c(tru', location.sourceText()); location = script.locationFromLine(1, 0, start_b); location.restrict(7, 6); assertEquals(' c(tru', location.sourceText()); // Test that script.sourceLine(line) works. for (line = 0; line < num_lines_d; line++) { var line_content_regexp = new RegExp(" x = " + (line + 1)); assertTrue(line_content_regexp.test(script.sourceLine(start_line_d + line))); }