dc9670bcb4
Patch by Matt Hanselman, see http://codereview.chromium.org/118371. BUG=213 TEST=test/mjsunit/debug-sourceinfo.js Review URL: http://codereview.chromium.org/118425 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2125 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
347 lines
14 KiB
JavaScript
347 lines
14 KiB
JavaScript
// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --expose-debug-as debug
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// For this test to work this file MUST have CR LF line endings.
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function a() { b(); };
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function b() {
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c(true);
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};
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function c(x) {
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if (x) {
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return 1;
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} else {
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return 1;
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}
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};
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function d(x) {
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x = 1 ;
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x = 2 ;
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x = 3 ;
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x = 4 ;
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x = 5 ;
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x = 6 ;
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x = 7 ;
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x = 8 ;
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x = 9 ;
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x = 10;
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x = 11;
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x = 12;
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x = 13;
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x = 14;
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x = 15;
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}
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// Get the Debug object exposed from the debug context global object.
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Debug = debug.Debug
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// This is the number of comment lines above the first test function.
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var comment_lines = 29;
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// This is the last position in the entire file (note: this equals
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// file size of <debug-sourceinfo.js> - 1, since starting at 0).
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var last_position = 14072;
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// This is the last line of entire file (note: starting at 0).
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var last_line = 345;
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// This is the last column of last line (note: starting at 0 and +2, due
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// to trailing <CR><LF>).
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var last_column = 48;
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// This magic number is the length or the first line comment (actually number
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// of characters before 'function a(...'.
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var comment_line_length = 1726;
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var start_a = 10 + comment_line_length;
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var start_b = 37 + comment_line_length;
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var start_c = 71 + comment_line_length;
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var start_d = 163 + comment_line_length;
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// The position of the first line of d(), i.e. "x = 1 ;".
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var start_code_d = start_d + 7;
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// The line # of the first line of d() (note: starting at 0).
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var start_line_d = 41;
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var line_length_d = 11;
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var num_lines_d = 15;
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assertEquals(start_a, Debug.sourcePosition(a));
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assertEquals(start_b, Debug.sourcePosition(b));
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assertEquals(start_c, Debug.sourcePosition(c));
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assertEquals(start_d, Debug.sourcePosition(d));
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var script = Debug.findScript(a);
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assertTrue(script.data === Debug.findScript(b).data);
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assertTrue(script.data === Debug.findScript(c).data);
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assertTrue(script.data === Debug.findScript(d).data);
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assertTrue(script.source === Debug.findScript(b).source);
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assertTrue(script.source === Debug.findScript(c).source);
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assertTrue(script.source === Debug.findScript(d).source);
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// Test that when running through source positions the position, line and
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// column progresses as expected.
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var position;
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var line;
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var column;
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for (var p = 0; p < 100; p++) {
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var location = script.locationFromPosition(p);
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if (p > 0) {
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assertEquals(position + 1, location.position);
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if (line == location.line) {
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assertEquals(column + 1, location.column);
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} else {
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assertEquals(line + 1, location.line);
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assertEquals(0, location.column);
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}
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} else {
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assertEquals(0, location.position);
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assertEquals(0, location.line);
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assertEquals(0, location.column);
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}
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// Remember the location.
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position = location.position;
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line = location.line;
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column = location.column;
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}
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// Every line of d() is the same length. Verify we can loop through all
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// positions and find the right line # for each.
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var p = start_code_d;
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for (line = 0; line < num_lines_d; line++) {
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for (column = 0; column < line_length_d; column++) {
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var location = script.locationFromPosition(p);
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assertEquals(p, location.position);
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assertEquals(start_line_d + line, location.line);
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assertEquals(column, location.column);
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p++;
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}
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}
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// Test first position.
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assertEquals(0, script.locationFromPosition(0).position);
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assertEquals(0, script.locationFromPosition(0).line);
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assertEquals(0, script.locationFromPosition(0).column);
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// Test second position.
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assertEquals(1, script.locationFromPosition(1).position);
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assertEquals(0, script.locationFromPosition(1).line);
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assertEquals(1, script.locationFromPosition(1).column);
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// Test first position in function a().
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assertEquals(start_a, script.locationFromPosition(start_a).position);
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assertEquals(0, script.locationFromPosition(start_a).line - comment_lines);
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assertEquals(10, script.locationFromPosition(start_a).column);
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// Test first position in function b().
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assertEquals(start_b, script.locationFromPosition(start_b).position);
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assertEquals(1, script.locationFromPosition(start_b).line - comment_lines);
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assertEquals(13, script.locationFromPosition(start_b).column);
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// Test first position in function c().
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assertEquals(start_c, script.locationFromPosition(start_c).position);
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assertEquals(4, script.locationFromPosition(start_c).line - comment_lines);
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assertEquals(12, script.locationFromPosition(start_c).column);
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// Test first position in function d().
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assertEquals(start_d, script.locationFromPosition(start_d).position);
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assertEquals(11, script.locationFromPosition(start_d).line - comment_lines);
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assertEquals(10, script.locationFromPosition(start_d).column);
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// Test first line.
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assertEquals(0, script.locationFromLine().position);
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assertEquals(0, script.locationFromLine().line);
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assertEquals(0, script.locationFromLine().column);
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assertEquals(0, script.locationFromLine(0).position);
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assertEquals(0, script.locationFromLine(0).line);
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assertEquals(0, script.locationFromLine(0).column);
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// Test first line column 1.
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assertEquals(1, script.locationFromLine(0, 1).position);
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assertEquals(0, script.locationFromLine(0, 1).line);
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assertEquals(1, script.locationFromLine(0, 1).column);
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// Test first line offset 1.
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assertEquals(1, script.locationFromLine(0, 0, 1).position);
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assertEquals(0, script.locationFromLine(0, 0, 1).line);
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assertEquals(1, script.locationFromLine(0, 0, 1).column);
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// Test offset function a().
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assertEquals(start_a, script.locationFromLine(void 0, void 0, start_a).position);
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assertEquals(0, script.locationFromLine(void 0, void 0, start_a).line - comment_lines);
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assertEquals(10, script.locationFromLine(void 0, void 0, start_a).column);
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assertEquals(start_a, script.locationFromLine(0, void 0, start_a).position);
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assertEquals(0, script.locationFromLine(0, void 0, start_a).line - comment_lines);
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assertEquals(10, script.locationFromLine(0, void 0, start_a).column);
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assertEquals(start_a, script.locationFromLine(0, 0, start_a).position);
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assertEquals(0, script.locationFromLine(0, 0, start_a).line - comment_lines);
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assertEquals(10, script.locationFromLine(0, 0, start_a).column);
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// Test second line offset function a().
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assertEquals(start_a + 14, script.locationFromLine(1, 0, start_a).position);
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assertEquals(1, script.locationFromLine(1, 0, start_a).line - comment_lines);
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assertEquals(0, script.locationFromLine(1, 0, start_a).column);
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// Test second line column 2 offset function a().
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assertEquals(start_a + 14 + 2, script.locationFromLine(1, 2, start_a).position);
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assertEquals(1, script.locationFromLine(1, 2, start_a).line - comment_lines);
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assertEquals(2, script.locationFromLine(1, 2, start_a).column);
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// Test offset function b().
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assertEquals(start_b, script.locationFromLine(0, 0, start_b).position);
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assertEquals(1, script.locationFromLine(0, 0, start_b).line - comment_lines);
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assertEquals(13, script.locationFromLine(0, 0, start_b).column);
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// Test second line offset function b().
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assertEquals(start_b + 6, script.locationFromLine(1, 0, start_b).position);
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assertEquals(2, script.locationFromLine(1, 0, start_b).line - comment_lines);
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assertEquals(0, script.locationFromLine(1, 0, start_b).column);
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// Test second line column 11 offset function b().
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assertEquals(start_b + 6 + 11, script.locationFromLine(1, 11, start_b).position);
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assertEquals(2, script.locationFromLine(1, 11, start_b).line - comment_lines);
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assertEquals(11, script.locationFromLine(1, 11, start_b).column);
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// Test second line column 12 offset function b. Second line in b is 11 long
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// using column 12 wraps to next line.
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assertEquals(start_b + 6 + 12, script.locationFromLine(1, 12, start_b).position);
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assertEquals(3, script.locationFromLine(1, 12, start_b).line - comment_lines);
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assertEquals(0, script.locationFromLine(1, 12, start_b).column);
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// Test the Debug.findSourcePosition which wraps SourceManager.
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assertEquals(0 + start_a, Debug.findFunctionSourceLocation(a, 0, 0).position);
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assertEquals(0 + start_b, Debug.findFunctionSourceLocation(b, 0, 0).position);
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assertEquals(6 + start_b, Debug.findFunctionSourceLocation(b, 1, 0).position);
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assertEquals(8 + start_b, Debug.findFunctionSourceLocation(b, 1, 2).position);
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assertEquals(18 + start_b, Debug.findFunctionSourceLocation(b, 2, 0).position);
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assertEquals(0 + start_c, Debug.findFunctionSourceLocation(c, 0, 0).position);
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assertEquals(7 + start_c, Debug.findFunctionSourceLocation(c, 1, 0).position);
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assertEquals(21 + start_c, Debug.findFunctionSourceLocation(c, 2, 0).position);
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assertEquals(38 + start_c, Debug.findFunctionSourceLocation(c, 3, 0).position);
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assertEquals(52 + start_c, Debug.findFunctionSourceLocation(c, 4, 0).position);
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assertEquals(69 + start_c, Debug.findFunctionSourceLocation(c, 5, 0).position);
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assertEquals(76 + start_c, Debug.findFunctionSourceLocation(c, 6, 0).position);
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assertEquals(0 + start_d, Debug.findFunctionSourceLocation(d, 0, 0).position);
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assertEquals(7 + start_d, Debug.findFunctionSourceLocation(d, 1, 0).position);
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for (i = 1; i <= num_lines_d; i++) {
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assertEquals(7 + (i * line_length_d) + start_d, Debug.findFunctionSourceLocation(d, (i + 1), 0).position);
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}
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assertEquals(175 + start_d, Debug.findFunctionSourceLocation(d, 17, 0).position);
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// Make sure invalid inputs work properly.
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assertEquals(0, script.locationFromPosition(-1).line);
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assertEquals(null, script.locationFromPosition(last_position + 1));
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// Test last position.
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assertEquals(last_position, script.locationFromPosition(last_position).position);
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assertEquals(last_line, script.locationFromPosition(last_position).line);
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assertEquals(last_column, script.locationFromPosition(last_position).column);
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// Test source line and restriction. All the following tests start from line 1
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// column 2 in function b, which is the call to c.
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// c(true);
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// ^
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var location;
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location = script.locationFromLine(1, 0, start_b);
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assertEquals(' c(true);', location.sourceText());
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result = ['c', ' c', ' c(', ' c(', ' c(t']
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for (var i = 1; i <= 5; i++) {
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location = script.locationFromLine(1, 2, start_b);
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location.restrict(i);
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assertEquals(result[i - 1], location.sourceText());
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}
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location = script.locationFromLine(1, 2, start_b);
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location.restrict(1, 0);
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assertEquals('c', location.sourceText());
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location = script.locationFromLine(1, 2, start_b);
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location.restrict(2, 0);
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assertEquals('c(', location.sourceText());
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location = script.locationFromLine(1, 2, start_b);
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location.restrict(2, 1);
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assertEquals(' c', location.sourceText());
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location = script.locationFromLine(1, 2, start_b);
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location.restrict(2, 2);
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assertEquals(' c', location.sourceText());
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location = script.locationFromLine(1, 2, start_b);
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location.restrict(2, 3);
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assertEquals(' c', location.sourceText());
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location = script.locationFromLine(1, 2, start_b);
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location.restrict(3, 1);
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assertEquals(' c(', location.sourceText());
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location = script.locationFromLine(1, 2, start_b);
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location.restrict(5, 0);
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assertEquals('c(tru', location.sourceText());
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location = script.locationFromLine(1, 2, start_b);
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location.restrict(5, 2);
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assertEquals(' c(t', location.sourceText());
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location = script.locationFromLine(1, 2, start_b);
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location.restrict(5, 4);
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assertEquals(' c(t', location.sourceText());
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// All the following tests start from line 1 column 10 in function b, which is
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// the final character.
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// c(true);
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// ^
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location = script.locationFromLine(1, 10, start_b);
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location.restrict(5, 0);
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assertEquals('rue);', location.sourceText());
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location = script.locationFromLine(1, 10, start_b);
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location.restrict(7, 0);
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assertEquals('(true);', location.sourceText());
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// All the following tests start from line 1 column 0 in function b, which is
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// the first character.
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// c(true);
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//^
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location = script.locationFromLine(1, 0, start_b);
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location.restrict(5, 0);
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assertEquals(' c(t', location.sourceText());
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location = script.locationFromLine(1, 0, start_b);
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location.restrict(5, 4);
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assertEquals(' c(t', location.sourceText());
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location = script.locationFromLine(1, 0, start_b);
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location.restrict(7, 0);
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assertEquals(' c(tru', location.sourceText());
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location = script.locationFromLine(1, 0, start_b);
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location.restrict(7, 6);
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assertEquals(' c(tru', location.sourceText());
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