es6-arrow-function-expression.js
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(function() {
var escope, expect, harmony;
expect = require('chai').expect;
harmony = require('../third_party/esprima');
escope = require('..');
describe('ES6 arrow function expression', function() {
it('materialize scope for arrow function expression', function() {
var ast, scope, scopeManager;
ast = harmony.parse("var arrow = () => {\n let i = 0;\n var j = 20;\n console.log(i);\n}");
scopeManager = escope.analyze(ast, {
ecmaVersion: 6
});
expect(scopeManager.scopes).to.have.length(2);
scope = scopeManager.scopes[0];
expect(scope.type).to.be.equal('global');
expect(scope.block.type).to.be.equal('Program');
expect(scope.isStrict).to.be["false"];
expect(scope.variables).to.have.length(1);
scope = scopeManager.scopes[1];
expect(scope.type).to.be.equal('function');
expect(scope.block.type).to.be.equal('ArrowFunctionExpression');
expect(scope.isStrict).to.be["true"];
expect(scope.variables).to.have.length(2);
expect(scope.variables[0].name).to.be.equal('i');
return expect(scope.variables[1].name).to.be.equal('j');
});
return it('generate bindings for parameters', function() {
var ast, scope, scopeManager;
ast = harmony.parse("var arrow = (a, b, c, d) => {\n}");
scopeManager = escope.analyze(ast, {
ecmaVersion: 6
});
expect(scopeManager.scopes).to.have.length(2);
scope = scopeManager.scopes[0];
expect(scope.type).to.be.equal('global');
expect(scope.block.type).to.be.equal('Program');
expect(scope.isStrict).to.be["false"];
expect(scope.variables).to.have.length(1);
scope = scopeManager.scopes[1];
expect(scope.type).to.be.equal('function');
expect(scope.block.type).to.be.equal('ArrowFunctionExpression');
expect(scope.isStrict).to.be["true"];
expect(scope.variables).to.have.length(4);
expect(scope.variables[0].name).to.be.equal('a');
expect(scope.variables[1].name).to.be.equal('b');
expect(scope.variables[2].name).to.be.equal('c');
return expect(scope.variables[3].name).to.be.equal('d');
});
});
}).call(this);
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IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY\n#  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n#  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\n#  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND\n#  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n#  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF\n#  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\nexpect = require('chai').expect\nharmony = require '../third_party/esprima'\nescope = require '..'\n\ndescribe 'ES6 arrow function expression', ->\n    it 'materialize scope for arrow function expression', ->\n        ast = harmony.parse \"\"\"\n        var arrow = () => {\n            let i = 0;\n            var j = 20;\n            console.log(i);\n        }\n        \"\"\"\n\n        scopeManager = escope.analyze ast, ecmaVersion: 6\n        expect(scopeManager.scopes).to.have.length 2\n\n        scope = scopeManager.scopes[0]\n        expect(scope.type).to.be.equal 'global'\n        expect(scope.block.type).to.be.equal 'Program'\n        expect(scope.isStrict).to.be.false\n        expect(scope.variables).to.have.length 1\n\n        scope = scopeManager.scopes[1]\n        expect(scope.type).to.be.equal 'function'\n        expect(scope.block.type).to.be.equal 'ArrowFunctionExpression'\n        expect(scope.isStrict).to.be.true\n        expect(scope.variables).to.have.length 2\n        # There's no \"arguments\"\n        expect(scope.variables[0].name).to.be.equal 'i'\n        expect(scope.variables[1].name).to.be.equal 'j'\n\n    it 'generate bindings for parameters', ->\n        ast = harmony.parse \"\"\"\n        var arrow = (a, b, c, d) => {\n        }\n        \"\"\"\n\n        scopeManager = escope.analyze ast, ecmaVersion: 6\n        expect(scopeManager.scopes).to.have.length 2\n\n        scope = scopeManager.scopes[0]\n        expect(scope.type).to.be.equal 'global'\n        expect(scope.block.type).to.be.equal 'Program'\n        expect(scope.isStrict).to.be.false\n        expect(scope.variables).to.have.length 1\n\n        scope = scopeManager.scopes[1]\n        expect(scope.type).to.be.equal 'function'\n        expect(scope.block.type).to.be.equal 'ArrowFunctionExpression'\n        expect(scope.isStrict).to.be.true\n        expect(scope.variables).to.have.length 4\n        # There's no \"arguments\"\n        expect(scope.variables[0].name).to.be.equal 'a'\n        expect(scope.variables[1].name).to.be.equal 'b'\n        expect(scope.variables[2].name).to.be.equal 'c'\n        expect(scope.variables[3].name).to.be.equal 'd'\n\n# vim: set sw=4 ts=4 et tw=80 :\n"]}