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9464d3c20f | ||
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3be06ad085 | ||
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265008c948 |
@@ -1,5 +1,4 @@
|
||||
language: node_js
|
||||
before_install: "npm install -g npm"
|
||||
node_js:
|
||||
- "0.10"
|
||||
- "0.12"
|
||||
|
||||
533
README.md
533
README.md
@@ -5,7 +5,7 @@ UglifyJS 3
|
||||
UglifyJS is a JavaScript parser, minifier, compressor and beautifier toolkit.
|
||||
|
||||
#### Note:
|
||||
- **`uglify-js@3.x` has a simplified API and CLI that is not backwards compatible with [`uglify-js@2.x`](https://github.com/mishoo/UglifyJS2/tree/v2.x)**.
|
||||
- **`uglify-js@3` has a simplified [API](#api-reference) and [CLI](#command-line-usage) that is not backwards compatible with [`uglify-js@2`](https://github.com/mishoo/UglifyJS2/tree/v2.x)**.
|
||||
- **Documentation for UglifyJS `2.x` releases can be found [here](https://github.com/mishoo/UglifyJS2/tree/v2.x)**.
|
||||
- `uglify-js` only supports ECMAScript 5 (ES5).
|
||||
- Those wishing to minify
|
||||
@@ -25,8 +25,7 @@ From NPM for programmatic use:
|
||||
|
||||
npm install uglify-js
|
||||
|
||||
Usage
|
||||
-----
|
||||
# Command line usage
|
||||
|
||||
uglifyjs [input files] [options]
|
||||
|
||||
@@ -43,7 +42,7 @@ a double dash to prevent input files being used as option arguments:
|
||||
|
||||
uglifyjs --compress --mangle -- input.js
|
||||
|
||||
The available options are:
|
||||
### Command line options
|
||||
|
||||
```
|
||||
-h, --help Print usage information.
|
||||
@@ -142,7 +141,7 @@ The available options are:
|
||||
Specify `--output` (`-o`) to declare the output file. Otherwise the output
|
||||
goes to STDOUT.
|
||||
|
||||
## Source map options
|
||||
## CLI source map options
|
||||
|
||||
UglifyJS can generate a source map file, which is highly useful for
|
||||
debugging your compressed JavaScript. To get a source map, pass
|
||||
@@ -186,7 +185,20 @@ To use this feature pass `--source-map content="/path/to/input/source.map"`
|
||||
or `--source-map content=inline` if the source map is included inline with
|
||||
the sources.
|
||||
|
||||
## Mangler options
|
||||
## CLI compress options
|
||||
|
||||
You need to pass `--compress` (`-c`) to enable the compressor. Optionally
|
||||
you can pass a comma-separated list of [compress options](#compress-options).
|
||||
|
||||
Options are in the form `foo=bar`, or just `foo` (the latter implies
|
||||
a boolean option that you want to set `true`; it's effectively a
|
||||
shortcut for `foo=true`).
|
||||
|
||||
Example:
|
||||
|
||||
uglifyjs file.js -c toplevel,sequences=false
|
||||
|
||||
## CLI mangle options
|
||||
|
||||
To enable the mangler you need to pass `--mangle` (`-m`). The following
|
||||
(comma-separated) options are supported:
|
||||
@@ -205,16 +217,16 @@ comma-separated list of names. For example:
|
||||
|
||||
to prevent the `require`, `exports` and `$` names from being changed.
|
||||
|
||||
### Mangling property names (`--mangle-props`)
|
||||
### CLI mangling property names (`--mangle-props`)
|
||||
|
||||
**Note:** this will probably break your code. Mangling property names is a
|
||||
separate step, different from variable name mangling. Pass
|
||||
`--mangle-props`. It will mangle all properties that are seen in some
|
||||
object literal, or that are assigned to. For example:
|
||||
|
||||
```js
|
||||
```javascript
|
||||
var x = {
|
||||
foo: 1
|
||||
foo: 1
|
||||
};
|
||||
|
||||
x.bar = 2;
|
||||
@@ -243,10 +255,10 @@ mangled to the same name in all of them. For this, pass `--name-cache filename.
|
||||
and UglifyJS will maintain these mappings in a file which can then be reused.
|
||||
It should be initially empty. Example:
|
||||
|
||||
```
|
||||
rm -f /tmp/cache.json # start fresh
|
||||
uglifyjs file1.js file2.js --mangle-props --name-cache /tmp/cache.json -o part1.js
|
||||
uglifyjs file3.js file4.js --mangle-props --name-cache /tmp/cache.json -o part2.js
|
||||
```bash
|
||||
$ rm -f /tmp/cache.json # start fresh
|
||||
$ uglifyjs file1.js file2.js --mangle-props --name-cache /tmp/cache.json -o part1.js
|
||||
$ uglifyjs file3.js file4.js --mangle-props --name-cache /tmp/cache.json -o part2.js
|
||||
```
|
||||
|
||||
Now, `part1.js` and `part2.js` will be consistent with each other in terms
|
||||
@@ -255,18 +267,18 @@ of mangled property names.
|
||||
Using the name cache is not necessary if you compress all your files in a
|
||||
single call to UglifyJS.
|
||||
|
||||
#### Mangling unquoted names (`--mangle-props keep_quoted`)
|
||||
### Mangling unquoted names (`--mangle-props keep_quoted`)
|
||||
|
||||
Using quoted property name (`o["foo"]`) reserves the property name (`foo`)
|
||||
so that it is not mangled throughout the entire script even when used in an
|
||||
unquoted style (`o.foo`). Example:
|
||||
|
||||
```
|
||||
```bash
|
||||
$ echo 'var o={"foo":1, bar:3}; o.foo += o.bar; console.log(o.foo);' | uglifyjs --mangle-props keep_quoted -mc
|
||||
var o={foo:1,a:3};o.foo+=o.a,console.log(o.foo);
|
||||
```
|
||||
|
||||
#### Debugging property name mangling
|
||||
### Debugging property name mangling
|
||||
|
||||
You can also pass `--mangle-props debug` in order to mangle property names
|
||||
without completely obscuring them. For example the property `o.foo`
|
||||
@@ -281,12 +293,144 @@ random number on every compile to simulate mangling changing with different
|
||||
inputs (e.g. as you update the input script with new properties), and to help
|
||||
identify mistakes like writing mangled keys to storage.
|
||||
|
||||
## Compressor options
|
||||
|
||||
You need to pass `--compress` (`-c`) to enable the compressor. Optionally
|
||||
you can pass a comma-separated list of options. Options are in the form
|
||||
`foo=bar`, or just `foo` (the latter implies a boolean option that you want
|
||||
to set `true`; it's effectively a shortcut for `foo=true`).
|
||||
# API Reference
|
||||
|
||||
Assuming installation via NPM, you can load UglifyJS in your application
|
||||
like this:
|
||||
```javascript
|
||||
var UglifyJS = require("uglify-js");
|
||||
```
|
||||
|
||||
There is a single high level minification function, `minify(files, options)`, which will
|
||||
performs all the steps in a configurable manner.
|
||||
Example:
|
||||
```javascript
|
||||
var result = UglifyJS.minify("var b = function() {};");
|
||||
console.log(result.code); // minified output
|
||||
console.log(result.error); // runtime error
|
||||
```
|
||||
|
||||
You can also compress multiple files:
|
||||
```javascript
|
||||
var result = UglifyJS.minify({
|
||||
"file1.js": "var a = function() {};",
|
||||
"file2.js": "var b = function() {};"
|
||||
});
|
||||
console.log(result.code);
|
||||
```
|
||||
|
||||
## Minify options
|
||||
|
||||
- `warnings` (default `false`) — pass `true` to display compressor warnings.
|
||||
|
||||
- `parse` (default `{}`) — pass an object if you wish to specify some
|
||||
additional [parse options](#parse-options).
|
||||
|
||||
- `compress` (default `{}`) — pass `false` to skip compressing entirely.
|
||||
Pass an object to specify custom [compress options](#compress-options).
|
||||
|
||||
- `mangle` (default `true`) — pass `false` to skip mangling names, or pass
|
||||
an object to specify [mangle options](#mangle-options) (see below).
|
||||
|
||||
- `mangle.properties` (default `false`) — a subcategory of the mangle option.
|
||||
Pass an object to specify custom [mangle property options](#mangle-properties-options).
|
||||
|
||||
- `output` (default `null`) — pass an object if you wish to specify
|
||||
additional [output options](#output-options). The defaults are optimized
|
||||
for best compression.
|
||||
|
||||
- `sourceMap` (default `false`) - pass an object if you wish to specify
|
||||
[source map options](#source-map-options).
|
||||
|
||||
- `toplevel` (default `false`) - set to `true` if you wish to enable top level
|
||||
variable and function name mangling and to drop unused variables and functions.
|
||||
|
||||
- `ie8` (default `false`) - set to `true` to support IE8.
|
||||
|
||||
## Minify option structure
|
||||
|
||||
```javascript
|
||||
{
|
||||
warnings: false,
|
||||
parse: {
|
||||
// parse options
|
||||
},
|
||||
compress: {
|
||||
// compress options
|
||||
},
|
||||
mangle: {
|
||||
// mangle options
|
||||
|
||||
properties: {
|
||||
// mangle property options
|
||||
}
|
||||
},
|
||||
output: {
|
||||
// output options
|
||||
},
|
||||
sourceMap: {
|
||||
// source map options
|
||||
},
|
||||
toplevel: false,
|
||||
ie8: false,
|
||||
}
|
||||
```
|
||||
|
||||
### Source map options
|
||||
|
||||
To generate a source map:
|
||||
```javascript
|
||||
var result = UglifyJS.minify({"file1.js": "var a = function() {};"}, {
|
||||
sourceMap: {
|
||||
filename: "out.js",
|
||||
url: "out.js.map"
|
||||
}
|
||||
});
|
||||
console.log(result.code); // minified output
|
||||
console.log(result.map); // source map
|
||||
```
|
||||
|
||||
Note that the source map is not saved in a file, it's just returned in
|
||||
`result.map`. The value passed for `sourceMap.url` is only used to set
|
||||
`//# sourceMappingURL=out.js.map` in `result.code`. The value of
|
||||
`filename` is only used to set `file` attribute (see [the spec][sm-spec])
|
||||
in source map file.
|
||||
|
||||
You can set option `sourceMap.url` to be `"inline"` and source map will
|
||||
be appended to code.
|
||||
|
||||
You can also specify sourceRoot property to be included in source map:
|
||||
```javascript
|
||||
var result = UglifyJS.minify({"file1.js": "var a = function() {};"}, {
|
||||
sourceMap: {
|
||||
root: "http://example.com/src",
|
||||
url: "out.js.map"
|
||||
}
|
||||
});
|
||||
```
|
||||
|
||||
If you're compressing compiled JavaScript and have a source map for it, you
|
||||
can use `sourceMap.content`:
|
||||
```javascript
|
||||
var result = UglifyJS.minify({"compiled.js": "compiled code"}, {
|
||||
sourceMap: {
|
||||
content: "content from compiled.js.map",
|
||||
url: "minified.js.map"
|
||||
}
|
||||
});
|
||||
// same as before, it returns `code` and `map`
|
||||
```
|
||||
|
||||
If you're using the `X-SourceMap` header instead, you can just omit `sourceMap.url`.
|
||||
|
||||
## Parse options
|
||||
|
||||
- `bare_returns` (default `false`) -- support top level `return` statements
|
||||
- `html5_comments` (default `true`)
|
||||
- `shebang` (default `true`) -- support `#!command` as the first line
|
||||
|
||||
## Compress options
|
||||
|
||||
- `sequences` (default: true) -- join consecutive simple statements using the
|
||||
comma operator. May be set to a positive integer to specify the maximum number
|
||||
@@ -414,76 +558,50 @@ marked as "pure". A function call is marked as "pure" if a comment annotation
|
||||
`/*@__PURE__*/` or `/*#__PURE__*/` immediately precedes the call. For example:
|
||||
`/*@__PURE__*/foo()`;
|
||||
|
||||
## Mangle options
|
||||
|
||||
### The `unsafe` option
|
||||
- `reserved` - pass an array of identifiers that should be excluded from mangling
|
||||
|
||||
It enables some transformations that *might* break code logic in certain
|
||||
contrived cases, but should be fine for most code. You might want to try it
|
||||
on your own code, it should reduce the minified size. Here's what happens
|
||||
when this flag is on:
|
||||
- `toplevel` — mangle names declared in the toplevel scope (disabled by
|
||||
default).
|
||||
|
||||
- `new Array(1, 2, 3)` or `Array(1, 2, 3)` → `[ 1, 2, 3 ]`
|
||||
- `new Object()` → `{}`
|
||||
- `String(exp)` or `exp.toString()` → `"" + exp`
|
||||
- `new Object/RegExp/Function/Error/Array (...)` → we discard the `new`
|
||||
- `typeof foo == "undefined"` → `foo === void 0`
|
||||
- `void 0` → `undefined` (if there is a variable named "undefined" in
|
||||
scope; we do it because the variable name will be mangled, typically
|
||||
reduced to a single character)
|
||||
- `eval` — mangle names visible in scopes where eval or with are used
|
||||
(disabled by default).
|
||||
|
||||
### Conditional compilation
|
||||
- `keep_fnames` -- default `false`. Pass `true` to not mangle
|
||||
function names. Useful for code relying on `Function.prototype.name`.
|
||||
See also: the `keep_fnames` [compress option](#compress-options).
|
||||
|
||||
Examples:
|
||||
|
||||
You can use the `--define` (`-d`) switch in order to declare global
|
||||
variables that UglifyJS will assume to be constants (unless defined in
|
||||
scope). For example if you pass `--define DEBUG=false` then, coupled with
|
||||
dead code removal UglifyJS will discard the following from the output:
|
||||
```javascript
|
||||
if (DEBUG) {
|
||||
console.log("debug stuff");
|
||||
// test.js
|
||||
var globalVar;
|
||||
function funcName(firstLongName, anotherLongName) {
|
||||
var myVariable = firstLongName + anotherLongName;
|
||||
}
|
||||
```
|
||||
|
||||
You can specify nested constants in the form of `--define env.DEBUG=false`.
|
||||
|
||||
UglifyJS will warn about the condition being always false and about dropping
|
||||
unreachable code; for now there is no option to turn off only this specific
|
||||
warning, you can pass `warnings=false` to turn off *all* warnings.
|
||||
|
||||
Another way of doing that is to declare your globals as constants in a
|
||||
separate file and include it into the build. For example you can have a
|
||||
`build/defines.js` file with the following:
|
||||
```javascript
|
||||
const DEBUG = false;
|
||||
const PRODUCTION = true;
|
||||
// etc.
|
||||
var code = fs.readFileSync("test.js", "utf8");
|
||||
|
||||
UglifyJS.minify(code).code;
|
||||
// 'function funcName(a,n){}var globalVar;'
|
||||
|
||||
UglifyJS.minify(code, { mangle: { reserved: ['firstLongName'] } }).code;
|
||||
// 'function funcName(firstLongName,a){}var globalVar;'
|
||||
|
||||
UglifyJS.minify(code, { mangle: { toplevel: true } }).code;
|
||||
// 'function n(n,a){}var a;'
|
||||
```
|
||||
|
||||
and build your code like this:
|
||||
### Mangle properties options
|
||||
|
||||
uglifyjs build/defines.js js/foo.js js/bar.js... -c
|
||||
- `regex` — Pass a RegExp to only mangle certain names
|
||||
- `keep_quoted` — Only mangle unquoted property names
|
||||
- `debug` — Mangle names with the original name still present. Defaults to `false`.
|
||||
Pass an empty string to enable, or a non-empty string to set the suffix.
|
||||
|
||||
UglifyJS will notice the constants and, since they cannot be altered, it
|
||||
will evaluate references to them to the value itself and drop unreachable
|
||||
code as usual. The build will contain the `const` declarations if you use
|
||||
them. If you are targeting < ES6 environments which does not support `const`,
|
||||
using `var` with `reduce_vars` (enabled by default) should suffice.
|
||||
|
||||
#### Conditional compilation, API
|
||||
You can also use conditional compilation via the programmatic API. With the difference that the
|
||||
property name is `global_defs` and is a compressor property:
|
||||
|
||||
```js
|
||||
uglifyJS.minify(fs.readFileSync("input.js", "utf8"), {
|
||||
compress: {
|
||||
dead_code: true,
|
||||
global_defs: {
|
||||
DEBUG: false
|
||||
}
|
||||
}
|
||||
});
|
||||
```
|
||||
|
||||
## Beautifier options
|
||||
## Output options
|
||||
|
||||
The code generator tries to output shortest code possible by default. In
|
||||
case you want beautified output, pass `--beautify` (`-b`). Optionally you
|
||||
@@ -529,6 +647,9 @@ can pass additional arguments that control the code output:
|
||||
- `keep_quoted_props` (default `false`) -- when turned on, prevents stripping
|
||||
quotes from property names in object literals.
|
||||
|
||||
|
||||
# Miscellaneous
|
||||
|
||||
### Keeping copyright notices or other comments
|
||||
|
||||
You can pass `--comments` to retain certain comments in the output. By
|
||||
@@ -542,11 +663,11 @@ Note, however, that there might be situations where comments are lost. For
|
||||
example:
|
||||
```javascript
|
||||
function f() {
|
||||
/** @preserve Foo Bar */
|
||||
function g() {
|
||||
// this function is never called
|
||||
}
|
||||
return something();
|
||||
/** @preserve Foo Bar */
|
||||
function g() {
|
||||
// this function is never called
|
||||
}
|
||||
return something();
|
||||
}
|
||||
```
|
||||
|
||||
@@ -557,7 +678,115 @@ discarded by the compressor as not referenced.
|
||||
The safest comments where to place copyright information (or other info that
|
||||
needs to be kept in the output) are comments attached to toplevel nodes.
|
||||
|
||||
## Support for the SpiderMonkey AST
|
||||
### The `unsafe` `compress` option
|
||||
|
||||
It enables some transformations that *might* break code logic in certain
|
||||
contrived cases, but should be fine for most code. You might want to try it
|
||||
on your own code, it should reduce the minified size. Here's what happens
|
||||
when this flag is on:
|
||||
|
||||
- `new Array(1, 2, 3)` or `Array(1, 2, 3)` → `[ 1, 2, 3 ]`
|
||||
- `new Object()` → `{}`
|
||||
- `String(exp)` or `exp.toString()` → `"" + exp`
|
||||
- `new Object/RegExp/Function/Error/Array (...)` → we discard the `new`
|
||||
- `typeof foo == "undefined"` → `foo === void 0`
|
||||
- `void 0` → `undefined` (if there is a variable named "undefined" in
|
||||
scope; we do it because the variable name will be mangled, typically
|
||||
reduced to a single character)
|
||||
|
||||
### Conditional compilation
|
||||
|
||||
You can use the `--define` (`-d`) switch in order to declare global
|
||||
variables that UglifyJS will assume to be constants (unless defined in
|
||||
scope). For example if you pass `--define DEBUG=false` then, coupled with
|
||||
dead code removal UglifyJS will discard the following from the output:
|
||||
```javascript
|
||||
if (DEBUG) {
|
||||
console.log("debug stuff");
|
||||
}
|
||||
```
|
||||
|
||||
You can specify nested constants in the form of `--define env.DEBUG=false`.
|
||||
|
||||
UglifyJS will warn about the condition being always false and about dropping
|
||||
unreachable code; for now there is no option to turn off only this specific
|
||||
warning, you can pass `warnings=false` to turn off *all* warnings.
|
||||
|
||||
Another way of doing that is to declare your globals as constants in a
|
||||
separate file and include it into the build. For example you can have a
|
||||
`build/defines.js` file with the following:
|
||||
```javascript
|
||||
const DEBUG = false;
|
||||
const PRODUCTION = true;
|
||||
// etc.
|
||||
```
|
||||
|
||||
and build your code like this:
|
||||
|
||||
uglifyjs build/defines.js js/foo.js js/bar.js... -c
|
||||
|
||||
UglifyJS will notice the constants and, since they cannot be altered, it
|
||||
will evaluate references to them to the value itself and drop unreachable
|
||||
code as usual. The build will contain the `const` declarations if you use
|
||||
them. If you are targeting < ES6 environments which does not support `const`,
|
||||
using `var` with `reduce_vars` (enabled by default) should suffice.
|
||||
|
||||
### Conditional compilation API
|
||||
|
||||
You can also use conditional compilation via the programmatic API. With the difference that the
|
||||
property name is `global_defs` and is a compressor property:
|
||||
|
||||
```javascript
|
||||
var result = uglifyJS.minify(fs.readFileSync("input.js", "utf8"), {
|
||||
compress: {
|
||||
dead_code: true,
|
||||
global_defs: {
|
||||
DEBUG: false
|
||||
}
|
||||
}
|
||||
});
|
||||
```
|
||||
|
||||
### Using native Uglify AST with `minify()`
|
||||
```javascript
|
||||
// example: parse only, produce native Uglify AST
|
||||
|
||||
var result = UglifyJS.minify(code, {
|
||||
parse: {},
|
||||
compress: false,
|
||||
mangle: false,
|
||||
output: {
|
||||
ast: true,
|
||||
code: false // optional - faster if false
|
||||
}
|
||||
});
|
||||
|
||||
// result.ast contains native Uglify AST
|
||||
```
|
||||
```javascript
|
||||
// example: accept native Uglify AST input and then compress and mangle
|
||||
// to produce both code and native AST.
|
||||
|
||||
var result = UglifyJS.minify(ast, {
|
||||
compress: {},
|
||||
mangle: {},
|
||||
output: {
|
||||
ast: true,
|
||||
code: true // optional - faster if false
|
||||
}
|
||||
});
|
||||
|
||||
// result.ast contains native Uglify AST
|
||||
// result.code contains the minified code in string form.
|
||||
```
|
||||
|
||||
### Working with Uglify AST
|
||||
|
||||
Transversal and transformation of the native AST can be performed through
|
||||
[`TreeWalker`](http://lisperator.net/uglifyjs/walk) and
|
||||
[`TreeTransformer`](http://lisperator.net/uglifyjs/transform) respectively.
|
||||
|
||||
### ESTree / SpiderMonkey AST
|
||||
|
||||
UglifyJS has its own abstract syntax tree format; for
|
||||
[practical reasons](http://lisperator.net/blog/uglifyjs-why-not-switching-to-spidermonkey-ast/)
|
||||
@@ -585,141 +814,5 @@ Acorn is really fast (e.g. 250ms instead of 380ms on some 650K code), but
|
||||
converting the SpiderMonkey tree that Acorn produces takes another 150ms so
|
||||
in total it's a bit more than just using UglifyJS's own parser.
|
||||
|
||||
API Reference
|
||||
-------------
|
||||
|
||||
Assuming installation via NPM, you can load UglifyJS in your application
|
||||
like this:
|
||||
```javascript
|
||||
var UglifyJS = require("uglify-js");
|
||||
```
|
||||
|
||||
There is a single toplevel function, `minify(files, options)`, which will
|
||||
performs all the steps in a configurable manner.
|
||||
Example:
|
||||
```javascript
|
||||
var result = UglifyJS.minify("var b = function() {};");
|
||||
console.log(result.code); // minified output
|
||||
console.log(result.error); // runtime error
|
||||
```
|
||||
|
||||
You can also compress multiple files:
|
||||
```javascript
|
||||
var result = UglifyJS.minify({
|
||||
"file1.js": "var a = function() {};",
|
||||
"file2.js": "var b = function() {};"
|
||||
});
|
||||
console.log(result.code);
|
||||
```
|
||||
|
||||
To generate a source map:
|
||||
```javascript
|
||||
var result = UglifyJS.minify({"file1.js": "var a = function() {};"}, {
|
||||
sourceMap: {
|
||||
filename: "out.js",
|
||||
url: "out.js.map"
|
||||
}
|
||||
});
|
||||
console.log(result.code); // minified output
|
||||
console.log(result.map); // source map
|
||||
```
|
||||
|
||||
Note that the source map is not saved in a file, it's just returned in
|
||||
`result.map`. The value passed for `sourceMap.url` is only used to set
|
||||
`//# sourceMappingURL=out.js.map` in `result.code`. The value of
|
||||
`filename` is only used to set `file` attribute (see [the spec][sm-spec])
|
||||
in source map file.
|
||||
|
||||
You can set option `sourceMap.url` to be `"inline"` and source map will
|
||||
be appended to code.
|
||||
|
||||
You can also specify sourceRoot property to be included in source map:
|
||||
```javascript
|
||||
var result = UglifyJS.minify({"file1.js": "var a = function() {};"}, {
|
||||
sourceMap: {
|
||||
root: "http://example.com/src",
|
||||
url: "out.js.map"
|
||||
}
|
||||
});
|
||||
```
|
||||
|
||||
If you're compressing compiled JavaScript and have a source map for it, you
|
||||
can use `sourceMap.content`:
|
||||
```javascript
|
||||
var result = UglifyJS.minify({"compiled.js": "compiled code"}, {
|
||||
sourceMap: {
|
||||
content: "content from compiled.js.map",
|
||||
url: "minified.js.map"
|
||||
}
|
||||
});
|
||||
// same as before, it returns `code` and `map`
|
||||
```
|
||||
|
||||
If you're using the `X-SourceMap` header instead, you can just omit `sourceMap.url`.
|
||||
|
||||
Other options:
|
||||
|
||||
- `warnings` (default `false`) — pass `true` to display compressor warnings.
|
||||
|
||||
- `mangle` (default `true`) — pass `false` to skip mangling names, or pass
|
||||
an object to specify mangling options (see below).
|
||||
|
||||
- `mangleProperties` (default `false`) — pass an object to specify custom
|
||||
mangle property options.
|
||||
|
||||
- `output` (default `null`) — pass an object if you wish to specify
|
||||
additional [output options](#beautifier-options). The defaults are optimized
|
||||
for best compression.
|
||||
|
||||
- `compress` (default `{}`) — pass `false` to skip compressing entirely.
|
||||
Pass an object to specify custom [compressor options](#compressor-options).
|
||||
|
||||
- `parse` (default {}) — pass an object if you wish to specify some
|
||||
additional [parser options](#the-parser).
|
||||
|
||||
##### mangle
|
||||
|
||||
- `reserved` - pass an array of identifiers that should be excluded from mangling
|
||||
|
||||
- `toplevel` — mangle names declared in the toplevel scope (disabled by
|
||||
default).
|
||||
|
||||
- `eval` — mangle names visible in scopes where eval or with are used
|
||||
(disabled by default).
|
||||
|
||||
- `keep_fnames` -- default `false`. Pass `true` to not mangle
|
||||
function names. Useful for code relying on `Function.prototype.name`.
|
||||
See also: the `keep_fnames` [compress option](#compressor-options).
|
||||
|
||||
Examples:
|
||||
|
||||
```javascript
|
||||
// test.js
|
||||
var globalVar;
|
||||
function funcName(firstLongName, anotherLongName)
|
||||
{
|
||||
var myVariable = firstLongName + anotherLongName;
|
||||
}
|
||||
```
|
||||
```javascript
|
||||
var code = fs.readFileSync("test.js", "utf8");
|
||||
|
||||
UglifyJS.minify(code).code;
|
||||
// 'function funcName(a,n){}var globalVar;'
|
||||
|
||||
UglifyJS.minify(code, { mangle: { reserved: ['firstLongName'] } }).code;
|
||||
// 'function funcName(firstLongName,a){}var globalVar;'
|
||||
|
||||
UglifyJS.minify(code, { mangle: { toplevel: true } }).code;
|
||||
// 'function n(n,a){}var a;'
|
||||
```
|
||||
|
||||
##### mangle.properties options
|
||||
|
||||
- `regex` — Pass a RegExp to only mangle certain names
|
||||
- `keep_quoted` — Only mangle unquoted property names
|
||||
- `debug` — Mangle names with the original name still present. Defaults to `false`.
|
||||
Pass an empty string to enable, or a non-empty string to set the suffix.
|
||||
|
||||
[acorn]: https://github.com/ternjs/acorn
|
||||
[sm-spec]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k
|
||||
|
||||
@@ -21,8 +21,7 @@ var options = {
|
||||
compress: false,
|
||||
mangle: false
|
||||
};
|
||||
program._name = info.name;
|
||||
program.version(info.version);
|
||||
program.version(info.name + ' ' + info.version);
|
||||
program.parseArgv = program.parse;
|
||||
program.parse = undefined;
|
||||
program.option("-p, --parse <options>", "Specify parser options.", parse_js("parse", true));
|
||||
|
||||
62
lib/parse.js
62
lib/parse.js
@@ -285,7 +285,11 @@ function tokenizer($TEXT, filename, html5_comments, shebang) {
|
||||
S.regex_allowed = ((type == "operator" && !UNARY_POSTFIX(value)) ||
|
||||
(type == "keyword" && KEYWORDS_BEFORE_EXPRESSION(value)) ||
|
||||
(type == "punc" && PUNC_BEFORE_EXPRESSION(value)));
|
||||
prev_was_dot = (type == "punc" && value == ".");
|
||||
if (type == "punc" && value == ".") {
|
||||
prev_was_dot = true;
|
||||
} else if (!is_comment) {
|
||||
prev_was_dot = false;
|
||||
}
|
||||
var ret = {
|
||||
type : type,
|
||||
value : value,
|
||||
@@ -801,17 +805,16 @@ function parse($TEXT, options) {
|
||||
};
|
||||
|
||||
var statement = embed_tokens(function() {
|
||||
var tmp;
|
||||
handle_regexp();
|
||||
switch (S.token.type) {
|
||||
case "string":
|
||||
if (S.in_directives) {
|
||||
tmp = peek();
|
||||
var token = peek();
|
||||
if (S.token.raw.indexOf("\\") == -1
|
||||
&& (tmp.nlb
|
||||
|| is_token(tmp, "eof")
|
||||
|| is_token(tmp, "punc", ";")
|
||||
|| is_token(tmp, "punc", "}"))) {
|
||||
&& (token.nlb
|
||||
|| is_token(token, "eof")
|
||||
|| is_token(token, "punc", ";")
|
||||
|| is_token(token, "punc", "}"))) {
|
||||
S.input.add_directive(S.token.value);
|
||||
} else {
|
||||
S.in_directives = false;
|
||||
@@ -850,72 +853,97 @@ function parse($TEXT, options) {
|
||||
}
|
||||
|
||||
case "keyword":
|
||||
switch (tmp = S.token.value, next(), tmp) {
|
||||
switch (S.token.value) {
|
||||
case "break":
|
||||
next();
|
||||
return break_cont(AST_Break);
|
||||
|
||||
case "continue":
|
||||
next();
|
||||
return break_cont(AST_Continue);
|
||||
|
||||
case "debugger":
|
||||
next();
|
||||
semicolon();
|
||||
return new AST_Debugger();
|
||||
|
||||
case "do":
|
||||
next();
|
||||
var body = in_loop(statement);
|
||||
expect_token("keyword", "while");
|
||||
var condition = parenthesised();
|
||||
semicolon(true);
|
||||
return new AST_Do({
|
||||
body : in_loop(statement),
|
||||
condition : (expect_token("keyword", "while"), tmp = parenthesised(), semicolon(true), tmp)
|
||||
body : body,
|
||||
condition : condition
|
||||
});
|
||||
|
||||
case "while":
|
||||
next();
|
||||
return new AST_While({
|
||||
condition : parenthesised(),
|
||||
body : in_loop(statement)
|
||||
});
|
||||
|
||||
case "for":
|
||||
next();
|
||||
return for_();
|
||||
|
||||
case "function":
|
||||
next();
|
||||
return function_(AST_Defun);
|
||||
|
||||
case "if":
|
||||
next();
|
||||
return if_();
|
||||
|
||||
case "return":
|
||||
if (S.in_function == 0 && !options.bare_returns)
|
||||
croak("'return' outside of function");
|
||||
next();
|
||||
var value = null;
|
||||
if (is("punc", ";")) {
|
||||
next();
|
||||
} else if (!can_insert_semicolon()) {
|
||||
value = expression(true);
|
||||
semicolon();
|
||||
}
|
||||
return new AST_Return({
|
||||
value: ( is("punc", ";")
|
||||
? (next(), null)
|
||||
: can_insert_semicolon()
|
||||
? null
|
||||
: (tmp = expression(true), semicolon(), tmp) )
|
||||
value: value
|
||||
});
|
||||
|
||||
case "switch":
|
||||
next();
|
||||
return new AST_Switch({
|
||||
expression : parenthesised(),
|
||||
body : in_loop(switch_body_)
|
||||
});
|
||||
|
||||
case "throw":
|
||||
next();
|
||||
if (S.token.nlb)
|
||||
croak("Illegal newline after 'throw'");
|
||||
var value = expression(true);
|
||||
semicolon();
|
||||
return new AST_Throw({
|
||||
value: (tmp = expression(true), semicolon(), tmp)
|
||||
value: value
|
||||
});
|
||||
|
||||
case "try":
|
||||
next();
|
||||
return try_();
|
||||
|
||||
case "var":
|
||||
return tmp = var_(), semicolon(), tmp;
|
||||
next();
|
||||
var node = var_();
|
||||
semicolon();
|
||||
return node;
|
||||
|
||||
case "with":
|
||||
if (S.input.has_directive("use strict")) {
|
||||
croak("Strict mode may not include a with statement");
|
||||
}
|
||||
next();
|
||||
return new AST_With({
|
||||
expression : parenthesised(),
|
||||
body : statement()
|
||||
|
||||
@@ -4,7 +4,7 @@
|
||||
"homepage": "http://lisperator.net/uglifyjs",
|
||||
"author": "Mihai Bazon <mihai.bazon@gmail.com> (http://lisperator.net/)",
|
||||
"license": "BSD-2-Clause",
|
||||
"version": "3.0.5",
|
||||
"version": "3.0.7",
|
||||
"engines": {
|
||||
"node": ">=0.8.0"
|
||||
},
|
||||
|
||||
31
test/compress/issue-1943.js
Normal file
31
test/compress/issue-1943.js
Normal file
@@ -0,0 +1,31 @@
|
||||
operator: {
|
||||
input: {
|
||||
a. //comment
|
||||
typeof
|
||||
}
|
||||
expect_exact: "a.typeof;"
|
||||
}
|
||||
|
||||
name: {
|
||||
input: {
|
||||
a. //comment
|
||||
b
|
||||
}
|
||||
expect_exact: "a.b;"
|
||||
}
|
||||
|
||||
keyword: {
|
||||
input: {
|
||||
a. //comment
|
||||
default
|
||||
}
|
||||
expect_exact: "a.default;"
|
||||
}
|
||||
|
||||
atom: {
|
||||
input: {
|
||||
a. //comment
|
||||
true
|
||||
}
|
||||
expect_exact: "a.true;"
|
||||
}
|
||||
1
test/input/invalid/else.js
Normal file
1
test/input/invalid/else.js
Normal file
@@ -0,0 +1 @@
|
||||
if (0) else 1;
|
||||
1
test/input/invalid/return.js
Normal file
1
test/input/invalid/return.js
Normal file
@@ -0,0 +1 @@
|
||||
return 42;
|
||||
@@ -55,15 +55,15 @@ describe("bin/uglifyjs", function () {
|
||||
});
|
||||
});
|
||||
it("Should append source map to output when using --source-map url=inline", function (done) {
|
||||
var command = uglifyjscmd + " test/input/issue-1323/sample.js --source-map url=inline";
|
||||
var command = uglifyjscmd + " test/input/issue-1323/sample.js --source-map url=inline";
|
||||
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
|
||||
assert.strictEqual(stdout, "var bar=function(){function foo(bar){return bar}return foo}();\n" +
|
||||
"//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInRlc3QvaW5wdXQvaXNzdWUtMTMyMy9zYW1wbGUuanMiXSwibmFtZXMiOlsiYmFyIiwiZm9vIl0sIm1hcHBpbmdzIjoiQUFBQSxHQUFJQSxLQUFNLFdBQ04sUUFBU0MsS0FBS0QsS0FDVixNQUFPQSxLQUdYLE1BQU9DIn0=\n");
|
||||
done();
|
||||
});
|
||||
assert.strictEqual(stdout, "var bar=function(){function foo(bar){return bar}return foo}();\n" +
|
||||
"//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInRlc3QvaW5wdXQvaXNzdWUtMTMyMy9zYW1wbGUuanMiXSwibmFtZXMiOlsiYmFyIiwiZm9vIl0sIm1hcHBpbmdzIjoiQUFBQSxHQUFJQSxLQUFNLFdBQ04sUUFBU0MsS0FBS0QsS0FDVixNQUFPQSxLQUdYLE1BQU9DIn0=\n");
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("should not append source map to output when not using --source-map url=inline", function (done) {
|
||||
var command = uglifyjscmd + ' test/input/issue-1323/sample.js';
|
||||
@@ -76,84 +76,84 @@ describe("bin/uglifyjs", function () {
|
||||
});
|
||||
});
|
||||
it("Should work with --keep-fnames (mangle only)", function (done) {
|
||||
var command = uglifyjscmd + ' test/input/issue-1431/sample.js --keep-fnames -m';
|
||||
var command = uglifyjscmd + ' test/input/issue-1431/sample.js --keep-fnames -m';
|
||||
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
|
||||
assert.strictEqual(stdout, "function f(r){return function(){function n(n){return n*n}return r(n)}}function g(n){return n(1)+n(2)}console.log(f(g)()==5);\n");
|
||||
done();
|
||||
});
|
||||
assert.strictEqual(stdout, "function f(r){return function(){function n(n){return n*n}return r(n)}}function g(n){return n(1)+n(2)}console.log(f(g)()==5);\n");
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should work with --keep-fnames (mangle & compress)", function (done) {
|
||||
var command = uglifyjscmd + ' test/input/issue-1431/sample.js --keep-fnames -m -c unused=false';
|
||||
var command = uglifyjscmd + ' test/input/issue-1431/sample.js --keep-fnames -m -c unused=false';
|
||||
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
|
||||
assert.strictEqual(stdout, "function f(r){return function(){function n(n){return n*n}return r(n)}}function g(n){return n(1)+n(2)}console.log(5==f(g)());\n");
|
||||
done();
|
||||
});
|
||||
assert.strictEqual(stdout, "function f(r){return function(){function n(n){return n*n}return r(n)}}function g(n){return n(1)+n(2)}console.log(5==f(g)());\n");
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should work with keep_fnames under mangler options", function (done) {
|
||||
var command = uglifyjscmd + ' test/input/issue-1431/sample.js -m keep_fnames=true';
|
||||
var command = uglifyjscmd + ' test/input/issue-1431/sample.js -m keep_fnames=true';
|
||||
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
|
||||
assert.strictEqual(stdout, "function f(r){return function(){function n(n){return n*n}return r(n)}}function g(n){return n(1)+n(2)}console.log(f(g)()==5);\n");
|
||||
done();
|
||||
});
|
||||
assert.strictEqual(stdout, "function f(r){return function(){function n(n){return n*n}return r(n)}}function g(n){return n(1)+n(2)}console.log(f(g)()==5);\n");
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should work with --define (simple)", function (done) {
|
||||
var command = uglifyjscmd + ' test/input/global_defs/simple.js --define D=5 -c';
|
||||
var command = uglifyjscmd + ' test/input/global_defs/simple.js --define D=5 -c';
|
||||
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
|
||||
assert.strictEqual(stdout, "console.log(5);\n");
|
||||
done();
|
||||
});
|
||||
assert.strictEqual(stdout, "console.log(5);\n");
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should work with --define (nested)", function (done) {
|
||||
var command = uglifyjscmd + ' test/input/global_defs/nested.js --define C.D=5,C.V=3 -c';
|
||||
var command = uglifyjscmd + ' test/input/global_defs/nested.js --define C.D=5,C.V=3 -c';
|
||||
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
|
||||
assert.strictEqual(stdout, "console.log(3,5);\n");
|
||||
done();
|
||||
});
|
||||
assert.strictEqual(stdout, "console.log(3,5);\n");
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should work with --define (AST_Node)", function (done) {
|
||||
var command = uglifyjscmd + ' test/input/global_defs/simple.js --define console.log=stdout.println -c';
|
||||
var command = uglifyjscmd + ' test/input/global_defs/simple.js --define console.log=stdout.println -c';
|
||||
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
|
||||
assert.strictEqual(stdout, "stdout.println(D);\n");
|
||||
done();
|
||||
});
|
||||
assert.strictEqual(stdout, "stdout.println(D);\n");
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should work with `--beautify`", function (done) {
|
||||
var command = uglifyjscmd + ' test/input/issue-1482/input.js -b';
|
||||
var command = uglifyjscmd + ' test/input/issue-1482/input.js -b';
|
||||
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
|
||||
assert.strictEqual(stdout, read("test/input/issue-1482/default.js"));
|
||||
done();
|
||||
});
|
||||
assert.strictEqual(stdout, read("test/input/issue-1482/default.js"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should work with `--beautify bracketize`", function (done) {
|
||||
var command = uglifyjscmd + ' test/input/issue-1482/input.js -b bracketize';
|
||||
var command = uglifyjscmd + ' test/input/issue-1482/input.js -b bracketize';
|
||||
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
exec(command, function (err, stdout) {
|
||||
if (err) throw err;
|
||||
|
||||
assert.strictEqual(stdout, read("test/input/issue-1482/bracketize.js"));
|
||||
done();
|
||||
});
|
||||
assert.strictEqual(stdout, read("test/input/issue-1482/bracketize.js"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should process inline source map", function(done) {
|
||||
var command = uglifyjscmd + " test/input/issue-520/input.js -mc toplevel --source-map content=inline,url=inline";
|
||||
@@ -260,214 +260,244 @@ describe("bin/uglifyjs", function () {
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (5--)", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/assign_1.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/assign_1.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/assign_1.js:1,18",
|
||||
"console.log(1 || 5--);",
|
||||
" ^",
|
||||
"ERROR: Invalid use of -- operator"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/assign_1.js:1,18",
|
||||
"console.log(1 || 5--);",
|
||||
" ^",
|
||||
"ERROR: Invalid use of -- operator"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (Math.random() /= 2)", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/assign_2.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/assign_2.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/assign_2.js:1,32",
|
||||
"console.log(2 || (Math.random() /= 2));",
|
||||
" ^",
|
||||
"ERROR: Invalid assignment"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/assign_2.js:1,32",
|
||||
"console.log(2 || (Math.random() /= 2));",
|
||||
" ^",
|
||||
"ERROR: Invalid assignment"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (++this)", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/assign_3.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/assign_3.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/assign_3.js:1,17",
|
||||
"console.log(3 || ++this);",
|
||||
" ^",
|
||||
"ERROR: Invalid use of ++ operator"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/assign_3.js:1,17",
|
||||
"console.log(3 || ++this);",
|
||||
" ^",
|
||||
"ERROR: Invalid use of ++ operator"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (++null)", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/assign_4.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/assign_4.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/assign_4.js:1,0",
|
||||
"++null",
|
||||
"^",
|
||||
"ERROR: Invalid use of ++ operator"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/assign_4.js:1,0",
|
||||
"++null",
|
||||
"^",
|
||||
"ERROR: Invalid use of ++ operator"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (a.=)", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/dot_1.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/dot_1.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/dot_1.js:1,2",
|
||||
"a.=",
|
||||
" ^",
|
||||
"ERROR: Unexpected token: operator (=)"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/dot_1.js:1,2",
|
||||
"a.=",
|
||||
" ^",
|
||||
"ERROR: Unexpected token: operator (=)"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (%.a)", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/dot_2.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/dot_2.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/dot_2.js:1,0",
|
||||
"%.a;",
|
||||
"^",
|
||||
"ERROR: Unexpected token: operator (%)"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/dot_2.js:1,0",
|
||||
"%.a;",
|
||||
"^",
|
||||
"ERROR: Unexpected token: operator (%)"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (a./();)", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/dot_3.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/dot_3.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/dot_3.js:1,2",
|
||||
"a./();",
|
||||
" ^",
|
||||
"ERROR: Unexpected token: operator (/)"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/dot_3.js:1,2",
|
||||
"a./();",
|
||||
" ^",
|
||||
"ERROR: Unexpected token: operator (/)"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error ({%: 1})", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/object.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/object.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/object.js:1,13",
|
||||
"console.log({%: 1});",
|
||||
" ^",
|
||||
"ERROR: Unexpected token: operator (%)"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/object.js:1,13",
|
||||
"console.log({%: 1});",
|
||||
" ^",
|
||||
"ERROR: Unexpected token: operator (%)"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (delete x)", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/delete.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/delete.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/delete.js:13,11",
|
||||
" delete x;",
|
||||
" ^",
|
||||
"ERROR: Calling delete on expression not allowed in strict mode"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/delete.js:13,11",
|
||||
" delete x;",
|
||||
" ^",
|
||||
"ERROR: Calling delete on expression not allowed in strict mode"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (function g(arguments))", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/function_1.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/function_1.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/function_1.js:4,11",
|
||||
"function g(arguments) {",
|
||||
" ^",
|
||||
"ERROR: Unexpected arguments in strict mode"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/function_1.js:4,11",
|
||||
"function g(arguments) {",
|
||||
" ^",
|
||||
"ERROR: Unexpected arguments in strict mode"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (function eval())", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/function_2.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/function_2.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/function_2.js:4,9",
|
||||
"function eval() {",
|
||||
" ^",
|
||||
"ERROR: Unexpected eval in strict mode"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/function_2.js:4,9",
|
||||
"function eval() {",
|
||||
" ^",
|
||||
"ERROR: Unexpected eval in strict mode"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (iife arguments())", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/function_3.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/function_3.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/function_3.js:4,10",
|
||||
"!function arguments() {",
|
||||
" ^",
|
||||
"ERROR: Unexpected arguments in strict mode"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/function_3.js:4,10",
|
||||
"!function arguments() {",
|
||||
" ^",
|
||||
"ERROR: Unexpected arguments in strict mode"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (catch(eval))", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/try.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/try.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/try.js:7,18",
|
||||
" try {} catch (eval) {}",
|
||||
" ^",
|
||||
"ERROR: Unexpected eval in strict mode"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/try.js:7,18",
|
||||
" try {} catch (eval) {}",
|
||||
" ^",
|
||||
"ERROR: Unexpected eval in strict mode"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (var eval)", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/var.js';
|
||||
var command = uglifyjscmd + ' test/input/invalid/var.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/var.js:7,8",
|
||||
" var eval;",
|
||||
" ^",
|
||||
"ERROR: Unexpected eval in strict mode"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/var.js:7,8",
|
||||
" var eval;",
|
||||
" ^",
|
||||
"ERROR: Unexpected eval in strict mode"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (else)", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/else.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/else.js:1,7",
|
||||
"if (0) else 1;",
|
||||
" ^",
|
||||
"ERROR: Unexpected token: keyword (else)"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should throw syntax error (return)", function(done) {
|
||||
var command = uglifyjscmd + ' test/input/invalid/return.js';
|
||||
|
||||
exec(command, function (err, stdout, stderr) {
|
||||
assert.ok(err);
|
||||
assert.strictEqual(stdout, "");
|
||||
assert.strictEqual(stderr.split(/\n/).slice(0, 4).join("\n"), [
|
||||
"Parse error at test/input/invalid/return.js:1,0",
|
||||
"return 42;",
|
||||
"^",
|
||||
"ERROR: 'return' outside of function"
|
||||
].join("\n"));
|
||||
done();
|
||||
});
|
||||
});
|
||||
it("Should handle literal string as source map input", function(done) {
|
||||
var command = [
|
||||
|
||||
@@ -1,4 +1,5 @@
|
||||
exports["Dictionary"] = Dictionary;
|
||||
exports["TreeWalker"] = TreeWalker;
|
||||
exports["TreeTransformer"] = TreeTransformer;
|
||||
exports["minify"] = minify;
|
||||
exports["_push_uniq"] = push_uniq;
|
||||
|
||||
Reference in New Issue
Block a user