cartodb/node-source-map-support
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fix column numbers

Browse Source
This commit is contained in:
Evan Wallace 2014-04-26 11:15:38 -07:00
parent e7b02406fd
commit 4afea4855d
2 changed files with 17 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
README.md
View File

@ -76,7 +76,7 @@ compiled.js.map:
"file": "compiled.js", "file": "compiled.js",
"sources": ["original.js"], "sources": ["original.js"],
"names": [], "names": [],
"mappings": ";;;AAAA,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC" "mappings": ";;;AAAA,MAAM,IAAI"
} }
Run compiled.js using node (notice how the stack trace uses original.js instead of compiled.js): Run compiled.js using node (notice how the stack trace uses original.js instead of compiled.js):

34
source-map-support.js
View File

@ -154,13 +154,13 @@ function wrapCallSite(frame) {
var position = mapSourcePosition({ var position = mapSourcePosition({
source: source, source: source,
line: frame.getLineNumber(), line: frame.getLineNumber(),
column: frame.getColumnNumber() column: frame.getColumnNumber() - 1
}); });
return { return {
__proto__: frame, __proto__: frame,
getFileName: function() { return position.source; }, getFileName: function() { return position.source; },
getLineNumber: function() { return position.line; }, getLineNumber: function() { return position.line; },
getColumnNumber: function() { return position.column; }, getColumnNumber: function() { return position.column + 1; },
getScriptNameOrSourceURL: function() { return position.source; } getScriptNameOrSourceURL: function() { return position.source; }
}; };
} }
@ -192,25 +192,23 @@ function prepareStackTrace(error, stack) {
} }
// Mimic node's stack trace printing when an exception escapes the process // Mimic node's stack trace printing when an exception escapes the process
function handleUncaughtExceptions(error) { function handleUncaughtException(error) {
if (!error || !error.stack) { if (!error || !error.stack) {
console.log('Uncaught exception:', error); console.log('Uncaught exception:', error);
process.exit(); process.exit();
} }
var match = /\n at [^(]+ \((.*):(\d+):(\d+)\)/.exec(error.stack); var match = /\n at [^(]+ \((.*):(\d+):(\d+)\)/.exec(error.stack);
if (match) { if (match) {
var position = mapSourcePosition({ var source = match[1];
source: match[1], var line = +match[2];
line: match[2], var column = +match[3];
column: match[3] if (fs.existsSync(source)) {
}); var contents = fs.readFileSync(source, 'utf8');
if (fs.existsSync(position.source)) { var code = contents.split(/(?:\r\n|\r|\n)/)[line - 1];
var contents = fs.readFileSync(position.source, 'utf8'); if (code) {
var line = contents.split(/(?:\r\n|\r|\n)/)[position.line - 1]; console.log('\n' + source + ':' + line);
if (line) { console.log(code);
console.log('\n' + position.source + ':' + position.line); console.log(new Array(column).join(' ') + '^');
console.log(line);
console.log(new Array(+position.column).join(' ') + '^');
} }
} }
} }
@ -225,8 +223,8 @@ exports.install = function(options) {
// Configure options // Configure options
options = options || {}; options = options || {};
var installHandler = 'handleUncaughtExceptions' in options ? var installHandler = 'handleUncaughtException' in options ?
options.handleUncaughtExceptions : true; options.handleUncaughtException : true;
emptyCacheBetweenOperations = 'emptyCacheBetweenOperations' in options ? emptyCacheBetweenOperations = 'emptyCacheBetweenOperations' in options ?
options.emptyCacheBetweenOperations : false; options.emptyCacheBetweenOperations : false;
@ -243,7 +241,7 @@ exports.install = function(options) {
// generated JavaScript code will be shown above the stack trace instead of // generated JavaScript code will be shown above the stack trace instead of
// the original source code. // the original source code.
if (installHandler && !isInBrowser()) { if (installHandler && !isInBrowser()) {
process.on('uncaughtException', handleUncaughtExceptions); process.on('uncaughtException', handleUncaughtException);
} }
} }
}; };