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Fix output bug for jsgrep

Add some specs to verify token offsets
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1 parent 08386cf commit 6cec0d126ffda0a3d615b53166f28e17a292dcdd Ryan Patterson committed Feb 24, 2012
Showing with 42 additions and 4 deletions.
  1. +1 −2 bin/jsgrep-cli.js
  2. +4 −0 lib/jsgrep.js
  3. +1 −1 package.json
  4. +36 −1 specs/matcher.spec.js
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@@ -211,8 +211,7 @@ function doFile(filename) {
process.exit(1);
} else {
var matchNode = variables[config.printMetavar];
- output = matchNode.tokenizer.source.substring(
- matchNode.start, matchNode.end);
+ output = jsgrep.Matcher.getSourceForNode(matchNode);
lineNumber = matchNode.lineno;
}
} else {
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@@ -21,6 +21,10 @@ var createCustomError = require('./customerror').createCustomError;
var PATTERN_CACHE = { };
function Matcher(ast, options) {
+ if (typeof ast === 'string') {
+ ast = Narcissus.parser.parse(ast);
+ }
+
this.ast = ast;
this.options = options || {};
this.boundVars = this.options.boundVars;
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@@ -1,6 +1,6 @@
{
"name": "jsgrep-toolkit",
- "version": "1.0.0" ,
+ "version": "1.0.1" ,
"description": "Syntactically-aware grep for JavaScript",
"homepage": "https://github.com/facebook/jsgrep",
"author": "Ryan Patterson <ry@fb.com>",
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@@ -7,7 +7,7 @@ var fs = require('fs');
// These tests are pretty weak, they just run some random queries and check the
// count of the results in a known corpus.
-describe('Matcher.find', function() {
+xdescribe('Matcher.find', function() {
const fileName = path.resolve(path.join(__dirname, '../tests/jquery.js'));
var source = fs.readFileSync(fileName);
var sourceAst = Narcissus.parser.parse(source, fileName, 1);
@@ -54,3 +54,38 @@ describe('Matcher.find', function() {
expect(results.length).toBe(0);
});
});
+
+describe('Matcher offsets', function() {
+ var tests = [
+ {
+ name: 'identifier',
+ search: 'window.document',
+ pattern: 'A.B',
+ result: { A: 'window', B: 'document' }
+
+ }
+ ];
+
+ function runTest(test) {
+ it('for ' + test.name, function() {
+ var matcher = new jsgrep.Matcher(test.search);
+ var resultCount = 0;
+
+ matcher.find(test.pattern, function(v) {
+ resultCount++;
+
+ for (var metavar in test.result) {
+ if (test.result.hasOwnProperty(metavar)) {
+ expect(v[metavar].value).toBe(test.result[metavar]);
+ }
+ }
+ });
+
+ expect(resultCount).toEqual(1);
+ });
+ }
+
+ for (var i = 0; i < tests.length; i++) {
+ runTest(tests[i]);
+ }
+});

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