diff options
Diffstat (limited to 'node_modules/better-assert/index.js')
-rw-r--r-- | node_modules/better-assert/index.js | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/node_modules/better-assert/index.js b/node_modules/better-assert/index.js new file mode 100644 index 0000000..fd1c9b7 --- /dev/null +++ b/node_modules/better-assert/index.js @@ -0,0 +1,38 @@ +/** + * Module dependencies. + */ + +var AssertionError = require('assert').AssertionError + , callsite = require('callsite') + , fs = require('fs') + +/** + * Expose `assert`. + */ + +module.exports = process.env.NO_ASSERT + ? function(){} + : assert; + +/** + * Assert the given `expr`. + */ + +function assert(expr) { + if (expr) return; + + var stack = callsite(); + var call = stack[1]; + var file = call.getFileName(); + var lineno = call.getLineNumber(); + var src = fs.readFileSync(file, 'utf8'); + var line = src.split('\n')[lineno-1]; + var src = line.match(/assert\((.*)\)/)[1]; + + var err = new AssertionError({ + message: src, + stackStartFunction: stack[0].getFunction() + }); + + throw err; +} |