4d7746baf3
Adds a directive tracker for the parser/tokenizer to allow parsing depending on directive context.
61 lines
2.7 KiB
JavaScript
61 lines
2.7 KiB
JavaScript
var assert = require("assert");
|
|
var uglify = require("../../");
|
|
|
|
describe("Directives", function() {
|
|
it ("Should allow tokenizer to store directives state", function() {
|
|
var tokenizer = uglify.tokenizer("", "foo.js");
|
|
|
|
// Stack level 0
|
|
assert.strictEqual(tokenizer.has_directive("use strict"), false);
|
|
assert.strictEqual(tokenizer.has_directive("use asm"), false);
|
|
assert.strictEqual(tokenizer.has_directive("use thing"), false);
|
|
|
|
// Stack level 2
|
|
tokenizer.push_directives_stack();
|
|
tokenizer.push_directives_stack();
|
|
tokenizer.add_directive("use strict");
|
|
assert.strictEqual(tokenizer.has_directive("use strict"), true);
|
|
assert.strictEqual(tokenizer.has_directive("use asm"), false);
|
|
assert.strictEqual(tokenizer.has_directive("use thing"), false);
|
|
|
|
// Stack level 3
|
|
tokenizer.push_directives_stack();
|
|
tokenizer.add_directive("use strict");
|
|
tokenizer.add_directive("use asm");
|
|
assert.strictEqual(tokenizer.has_directive("use strict"), true);
|
|
assert.strictEqual(tokenizer.has_directive("use asm"), true);
|
|
assert.strictEqual(tokenizer.has_directive("use thing"), false);
|
|
|
|
// Stack level 2
|
|
tokenizer.pop_directives_stack();
|
|
assert.strictEqual(tokenizer.has_directive("use strict"), true);
|
|
assert.strictEqual(tokenizer.has_directive("use asm"), false);
|
|
assert.strictEqual(tokenizer.has_directive("use thing"), false);
|
|
|
|
// Stack level 3
|
|
tokenizer.push_directives_stack();
|
|
tokenizer.add_directive("use thing");
|
|
tokenizer.add_directive("use\\\nasm");
|
|
assert.strictEqual(tokenizer.has_directive("use strict"), true);
|
|
assert.strictEqual(tokenizer.has_directive("use asm"), false); // Directives are strict!
|
|
assert.strictEqual(tokenizer.has_directive("use thing"), true);
|
|
|
|
// Stack level 2
|
|
tokenizer.pop_directives_stack();
|
|
assert.strictEqual(tokenizer.has_directive("use strict"), true);
|
|
assert.strictEqual(tokenizer.has_directive("use asm"), false);
|
|
assert.strictEqual(tokenizer.has_directive("use thing"), false);
|
|
|
|
// Stack level 1
|
|
tokenizer.pop_directives_stack();
|
|
assert.strictEqual(tokenizer.has_directive("use strict"), false);
|
|
assert.strictEqual(tokenizer.has_directive("use asm"), false);
|
|
assert.strictEqual(tokenizer.has_directive("use thing"), false);
|
|
|
|
// Stack level 0
|
|
tokenizer.pop_directives_stack();
|
|
assert.strictEqual(tokenizer.has_directive("use strict"), false);
|
|
assert.strictEqual(tokenizer.has_directive("use asm"), false);
|
|
assert.strictEqual(tokenizer.has_directive("use thing"), false);
|
|
});
|
|
}); |