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source-map.js
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/*
Copyright (C) 2013 Yusuke Suzuki <[email protected]>
Copyright (C) 2013 Irakli Gozalishvili <[email protected]>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
'use strict';
var esprima = require('./3rdparty/esprima-1.0.0-dev'),
escodegen = require('./loader'),
sourcemap = require('source-map-js'),
chai = require('chai'),
expect = chai.expect;
describe('source map test', function () {
it('function expression identifier test', function () {
// https://github.com/Constellation/escodegen/issues/107
var ast = {
"type": "FunctionExpression",
"id": {
"type": "Identifier",
"name": "x",
"loc": {
"start": {
"line": 2,
"column": 4
},
"end": {
"line": 2,
"column": 5
}
}
},
"params": [],
"defaults": [],
"body": {
"type": "BlockStatement",
"body": [],
},
"rest": null,
"generator": false,
"expression": false,
};
// function x() {\n}
var result = escodegen.generate(ast, {
sourceMap: "107",
sourceMapWithCode: true
});
// contains mapping for identifier
expect(result.map._mappings.toArray().some(function (mapping) {
return mapping.generatedLine == 1 &&
mapping.generatedColumn == 9 &&
mapping.originalLine == 2 &&
mapping.originalColumn == 4;
})).to.be.true;
});
it('FunctionExpression params test', function () {
// https://github.com/Constellation/escodegen/issues/108
var ast = {
"type": "FunctionExpression",
"params": [
{
"type": "Identifier",
"name": "x",
"loc": {
"start": {
"line": 2,
"column": 4
},
"end": {
"line": 2,
"column": 5
}
}
},
{
"type": "Identifier",
"name": "y",
"loc": {
"start": {
"line": 3,
"column": 6
},
"end": {
"line": 3,
"column": 7
}
}
}
],
"defaults": [],
"body": {
"type": "BlockStatement",
"body": [],
},
"rest": null,
"generator": false,
"expression": false,
};
// function x() {\n}
var result = escodegen.generate(ast, {
sourceMap: "108",
sourceMapWithCode: true
});
function isXParam(mapping) {
return mapping.generatedLine == 1 &&
mapping.generatedColumn == 10 &&
mapping.originalLine == 2 &&
mapping.originalColumn == 4;
}
function isYParam(mapping) {
return mapping.generatedLine == 1 &&
mapping.generatedColumn == 13 &&
mapping.originalLine == 3 &&
mapping.originalColumn == 6;
}
// found x param mapping
expect(result.map._mappings.toArray().filter(isXParam).length).to.be.equal(1);
// found y param mapping
expect(result.map._mappings.toArray().filter(isYParam).length).to.be.equal(1);
});
it('MemberExpression test', function () {
var ast = {
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 8
}
},
"type": "MemberExpression",
"computed": false,
"object": {
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 5
}
},
"type": "Identifier",
"name": "isFoo"
},
"property": {
"loc": {
"start": {
"line": 1,
"column": 4
},
"end": {
"line": 1,
"column": 8
}
},
"type": "Identifier",
"name": "bar"
}
};
var result = escodegen.generate(ast, {
sourceMap: "members",
sourceMapWithCode: true
});
function isObject(mapping) {
return mapping.generatedLine == 1 &&
mapping.generatedColumn == 0 &&
mapping.originalLine == 1 &&
mapping.originalColumn == 0;
}
function isProperty(mapping) {
return mapping.generatedLine == 1 &&
mapping.generatedColumn == 6 &&
mapping.originalLine == 1 &&
mapping.originalColumn == 4;
}
// found object mapping
expect(result.map._mappings.toArray().filter(isObject).length).to.be.equal(1);
// found one property mapping
expect(result.map._mappings.toArray().filter(isProperty).length).to.be.equal(1);
});
it('Declaration in Function test', function () {
var ast = {
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 11
}
},
"type": "CallExpression",
"arguments": [],
"callee": {
"type": "SequenceExpression",
"expressions": [
{
"type": "FunctionExpression",
"params": [],
"defaults": [],
"expression": false,
"generator": false,
"body": {
"type": "BlockStatement",
"body": [
{
"type": "VariableDeclaration",
"kind": "var",
"declarations": [
{
"type": "VariableDeclarator",
"id": {
"type": "Identifier",
"name": "xᐝ1",
"loc": {
"start": {
"line": 1,
"column": 6
},
"end": {
"line": 1,
"column": 7
}
}
},
"init": {
"type": "Literal",
"value": 1
}
}
]
},
{
"type": "ReturnStatement",
"argument": {
"type": "UnaryExpression",
"operator": "void",
"argument": {
"type": "Literal",
"value": 0
},
"prefix": true
}
}
]
}
}
]
}
};
var result = escodegen.generate(ast, {
sourceMap: "IIFE",
sourceMapWithCode: true
});
// "found a declaration node"
expect(result.map._mappings.toArray().filter(function (x) {
return x.originalLine == 1 && x.originalColumn == 6;
}).length).to.be.equal(1);
});
it('names array test', function() {
var ast = {
"type": "Program",
"body": [
{
"type": "VariableDeclaration",
"declarations": [
{
"type": "VariableDeclarator",
"id": {
"type": "Identifier",
"name": "fooga",
"loc": {
"start": {
"line": 1,
"column": 4
},
"end": {
"line": 1,
"column": 9
}
}
},
"init": {
"type": "Literal",
"value": "wooga",
"raw": "\"wooga\"",
"loc": {
"start": {
"line": 1,
"column": 12
},
"end": {
"line": 1,
"column": 19
}
}
},
"loc": {
"start": {
"line": 1,
"column": 4
},
"end": {
"line": 1,
"column": 19
}
}
}
],
"kind": "var",
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 1,
"column": 20
}
}
},
{
"type": "ExpressionStatement",
"expression": {
"type": "CallExpression",
"callee": {
"type": "MemberExpression",
"computed": false,
"object": {
"type": "Identifier",
"name": "console",
"loc": {
"start": {
"line": 3,
"column": 0
},
"end": {
"line": 3,
"column": 7
}
}
},
"property": {
"type": "Identifier",
"name": "log",
"loc": {
"start": {
"line": 3,
"column": 8
},
"end": {
"line": 3,
"column": 11
}
}
},
"loc": {
"start": {
"line": 3,
"column": 0
},
"end": {
"line": 3,
"column": 11
}
}
},
"arguments": [
{
"type": "Identifier",
"name": "fooga",
"loc": {
"start": {
"line": 3,
"column": 12
},
"end": {
"line": 3,
"column": 17
}
}
}
],
"loc": {
"start": {
"line": 3,
"column": 0
},
"end": {
"line": 3,
"column": 18
}
}
},
"loc": {
"start": {
"line": 3,
"column": 0
},
"end": {
"line": 3,
"column": 19
}
}
}
],
"loc": {
"start": {
"line": 1,
"column": 0
},
"end": {
"line": 3,
"column": 19
}
}
};
var result = escodegen.generate(ast, {
sourceMap: "Names",
sourceMapWithCode: true
});
expect(result.map._names._array.length).to.be.equal(3);
});
it('sourceContent support', function() {
var source = "(+ a b)"
var ast = {
"type": "ExpressionStatement",
"expression": {"type": "BinaryExpression",
"operator": "+",
"left": {"type": "Identifier",
"name": "a",
"loc": {"start": {"line": 1, "column": 3 },
"end": {"line": 1, "column": 4 } },
},
"right": {"type": "Identifier",
"name": "b",
"loc": {"start": { "line": 1, "column": 5 },
"end": { "line": 1, "column": 6 } }
},
"loc": { "start": { "line": 1, "column": 0 },
"end": { "line": 1, "column": 6 } }
}
};
var output = escodegen.generate(ast, {
file: "sum.js",
sourceMap: "sum.ls",
sourceMapWithCode: true,
sourceContent: source
});
expect(output.code).to.be.equal("a + b;");
var consumer = new sourcemap.SourceMapConsumer(output.map.toString());
expect(consumer.sourceContentFor("sum.ls")).to.be.equal(source);
});
it('sourceMapWithCode forces output format', function() {
var ast = {
"type": "ExpressionStatement",
"expression": {
"type": "Literal",
"value": 1
}
};
// sourceMapWithCode should force result format to be object even with sourceMap:false
var result = escodegen.generate(ast, {
sourceMapWithCode: true
});
expect(result.code).to.be.a('string');
expect(result.map).to.be.equal(null);
});
});