6to5 - npm Package Compare versions

Comparing version 1.9.10 to 1.10.1

bin/6to5/index.js

@@ -19,2 +19,3 @@ #!/usr/bin/env node
 
+commander.option("-m, --modules [modules]", "Module formatter type to use [common]", "common");
 commander.option("-w, --whitelist [whitelist]", "Whitelist of transformers to ONLY use", util2.list);
@@ -26,9 +27,16 @@ commander.option("-b, --blacklist [blacklist]", "Blacklist of transformers to NOT use", util2.list);
 commander.on("--help", function(){
-  console.log("  Transformers:");
-  console.log();
-  _.each(_.keys(transform.transformers).sort(), function (key) {
-    if (key[0] === "_") return;
-    console.log("  - " + key);
-  });
-  console.log();
+  var outKeys = function (title, obj) {
+    console.log("  " + title + ":");
+    console.log();
+
+    _.each(_.keys(obj).sort(), function (key) {
+      if (key[0] === "_") return;
+      console.log("    - " + key);
+    });
+
+    console.log();
+  };
+
+  outKeys("Transformers", transform.transformers);
+  outKeys("Module formatters", transform.moduleFormatters);
 });
@@ -88,3 +96,4 @@
   whitelist:     commander.whitelist,
-  sourceMap:     commander.sourceMaps || commander.sourceMapsInline
+  sourceMap:     commander.sourceMaps || commander.sourceMapsInline,
+  modules:       commander.modules
 };
@@ -91,0 +100,0 @@

lib/6to5/file.js

@@ -6,11 +6,13 @@ module.exports = File;
 var transform = require("./transform");
-var recast    = require("recast");
+var recast    = require("acorn-recast");
 var util      = require("./util");
-var b         = require("recast").types.builders;
+var b         = require("acorn-ast-types").builders;
 var _         = require("lodash");
 
 function File(opts) {
+  this.opts            = File.normaliseOptions(opts);
+  this.moduleFormatter = this.getModuleFormatter(opts.modules);
+
   this.declarations = {};
   this.uids         = {};
-  this.opts         = File.normaliseOptions(opts);
   this.ast          = {};
@@ -26,3 +28,4 @@ }
     sourceMap: false,
-    filename:  "unknown"
+    filename:  "unknown",
+    modules:   "common"
   });
@@ -41,2 +44,17 @@
 
+File.prototype.getModuleFormatter = function (type) {
+  var ModuleLoader = transform.moduleFormatters[type];
+
+  if (!ModuleLoader) {
+    var loc = util.resolve(type);
+    if (loc) ModuleLoader = require(loc);
+  }
+
+  if (!ModuleLoader) {
+    throw new ReferenceError("unknown module formatter type " + type);
+  }
+
+  return new ModuleLoader(this);
+};
+
 File.prototype.parseShebang = function (code) {
@@ -92,5 +110,3 @@ var shebangMatch = code.match(SHEBANG_REGEX);
 
-  var printOpts = {
-    tabWidth: 2
-  };
+  var printOpts = { tabWidth: 2 };
 
@@ -121,2 +137,13 @@ if (opts.sourceMap) {
 File.prototype.generateUid = function (name) {
+  // replace all non-valid identifiers with dashes
+  name = name.replace(/[^a-zA-Z0-9]/g, "-");
+
+  // remove all dashes and numbers from start of name
+  name = name.replace(/^[-0-9]+/, "");
+
+  // camel case
+  name = name.replace(/[-_\s]+(.)?/g, function (match, c) {
+    return c ? c.toUpperCase() : "";
+  });
+
   var uids = this.uids;
@@ -123,0 +150,0 @@ var i = uids[name] || 1;

lib/6to5/polyfill.js

 require("es6-symbol/implement");
 require("es6-shim");
-require("regenerator").runtime();
+require("regenerator/runtime");

lib/6to5/register.js

@@ -24,3 +24,3 @@ require("./polyfill");
 var ignoreRegex = /node_modules/;
-var exts        = [];
+var exts        = {};
 var maps        = {};
@@ -44,9 +44,10 @@ var old         = require.extensions[".js"];
 var hookExtensions = function (_exts) {
-  _.each(exts, function (ext) {
+  _.each(exts, function (old, ext) {
     require.extensions[ext] = old;
   });
 
-  exts = _exts;
+  exts = {};
 
-  _.each(exts, function (ext) {
+  _.each(_exts, function (ext) {
+    exts[ext] = require.extensions[ext];
     require.extensions[ext] = loader;
@@ -53,0 +54,0 @@ });

lib/6to5/transform.js

@@ -5,3 +5,3 @@ module.exports = transform;
 var sourceMap   = require("source-map");
-var recast      = require("recast");
+var recast      = require("acorn-recast");
 var File        = require("./file");
@@ -106,2 +106,3 @@ var util        = require("./util");
   _declarations:            require("./transformers/_declarations"),
+  _moduleFormatter:         require("./transformers/_module-formatter"),
 
@@ -111,4 +112,10 @@ useStrict:                require("./transformers/use-strict")
 
+transform.moduleFormatters = {
+  common: require("./modules/common"),
+  amd:    require("./modules/amd"),
+  umd:    require("./modules/umd")
+};
+
 _.each(transform.transformers, function (transformer, key) {
   transform.transformers[key] = new Transformer(key, transformer);
 });

lib/6to5/transformer.js

@@ -14,9 +14,9 @@ module.exports = Transformer;
     transformer = { ast: transformer };
-  } else {
-    _.each(transformer, function (fns, type) {
-      if (type === "ast") return;
-      if (_.isFunction(fns)) fns = { enter: fns };
-      transformer[type] = fns;
-    });
   }
+
+  _.each(transformer, function (fns, type) {
+    if (_.isFunction(fns)) fns = { enter: fns };
+    transformer[type] = fns;
+  });
+
   return transformer;
@@ -31,4 +31,4 @@ };
 
-  if (transformer.ast) {
-    transformer.ast(ast, file);
+  if (transformer.ast && transformer.ast.enter) {
+    transformer.ast.enter(ast, file);
   }
@@ -62,7 +62,9 @@
   });
+
+  if (transformer.ast && transformer.ast.exit) {
+    transformer.ast.exit(ast, file);
+  }
 };
 
 Transformer.prototype.canRun = function (file) {
-  if (this.key[0] === "_") return true;
-
   var opts = file.opts;
@@ -69,0 +71,0 @@

lib/6to5/transformers/_alias-functions.js

 var traverse = require("../traverse");
 var util     = require("../util");
-var b        = require("recast").types.builders;
+var b        = require("acorn-ast-types").builders;
 
@@ -5,0 +5,0 @@ var go = function (getBody, node, file) {

lib/6to5/transformers/_declarations.js

@@ -1,2 +0,2 @@
-var b = require("recast").types.builders;
+var b = require("acorn-ast-types").builders;
 var _ = require("lodash");
@@ -3,0 +3,0 @@

lib/6to5/transformers/array-comprehension.js

 var util = require("../util");
-var b    = require("recast").types.builders;
-var _    = require("lodash");
+var b    = require("acorn-ast-types").builders;
 
@@ -71,8 +70,2 @@ var single = function (node) {
 exports.ComprehensionExpression = function (node, parent, file) {
-  _.each(node.blocks, function (block) {
-    if (!block.of) {
-      throw util.errorWithNode(block, "for-in array comprehension is not supported");
-    }
-  });
-
   if (node.blocks.length === 1) {
@@ -79,0 +72,0 @@ return single(node);

lib/6to5/transformers/classes.js

 var traverse = require("../traverse");
 var util     = require("../util");
-var b        = require("recast").types.builders;
+var b        = require("acorn-ast-types").builders;
 var _        = require("lodash");
@@ -53,14 +53,4 @@
   if (superName) {
-    // inherit prototype
-    body.push(util.template("class-inherits-prototype", {
-      SUPER_NAME: superName,
-      CLASS_NAME: className
-    }, true));
+    body.push(b.expressionStatement(b.callExpression(file.addDeclaration("extends"), [className, superName])));
 
-    // inherit static properties
-    body.push(util.template("class-inherits-properties", {
-      SUPER_NAME: superName,
-      CLASS_NAME: className
-    }, true));
-
     container.arguments.push(superClassArgument);
@@ -67,0 +57,0 @@ container.callee.params.push(superClassCallee);

lib/6to5/transformers/computed-property-names.js

 var util = require("../util");
-var b    = require("recast").types.builders;
+var b    = require("acorn-ast-types").builders;
 var _    = require("lodash");
@@ -4,0 +4,0 @@

lib/6to5/transformers/destructuring.js

 var traverse = require("../traverse");
 var util     = require("../util");
-var b        = require("recast").types.builders;
+var b        = require("acorn-ast-types").builders;
 var _        = require("lodash");
@@ -5,0 +5,0 @@

lib/6to5/transformers/for-of.js

 var util = require("../util");
-var b    = require("recast").types.builders;
+var b    = require("acorn-ast-types").builders;
 
@@ -4,0 +4,0 @@ exports.ForOfStatement = function (node, parent, file) {

lib/6to5/transformers/jsx/index.js

@@ -5,3 +5,3 @@ // Based upon the excellent jsx-transpiler by Ingvar Stepanyan (RReverser)
 var esutils = require("esutils");
-var b       = require("recast").types.builders;
+var b       = require("acorn-ast-types").builders;
 var _       = require("lodash");
@@ -89,9 +89,7 @@
     var children = node.children;
-    var args     = callExpr.arguments;
 
-    switch (children.length) {
-      case 0: break;
-      case 1: args.push(children[0]); break;
-      default: args.push(b.arrayExpression(children));
-    }
+    _.each(children, function (child) {
+      delete child.raw;
+      callExpr.arguments.push(child);
+    });
 
@@ -98,0 +96,0 @@ callExpr.loc = node.loc;

lib/6to5/transformers/let-scoping.js

 var traverse = require("../traverse");
 var util     = require("../util");
-var b        = require("recast").types.builders;
+var b        = require("acorn-ast-types").builders;
 var _        = require("lodash");
@@ -5,0 +5,0 @@

lib/6to5/transformers/modules.js

@@ -1,6 +0,4 @@
-var util = require("../util");
-var b    = require("recast").types.builders;
-var _    = require("lodash");
+var _ = require("lodash");
 
-exports.ImportDeclaration = function (node) {
+exports.ImportDeclaration = function (node, parent, file) {
   var nodes = [];
@@ -10,26 +8,6 @@
     _.each(node.specifiers, function (specifier) {
-      var variableName = getSpecifierName(specifier);
-      var key          = specifier.id.name;
-
-      // import foo from "foo";
-      if (specifier.type === "ImportDefaultSpecifier") {
-        key = b.identifier("default");
-      }
-
-      var templateName = "require-assign";
-
-      // import * as bar from "foo";
-      if (specifier.type !== "ImportNamespaceSpecifier") templateName += "-key";
-
-      nodes.push(util.template(templateName, {
-        VARIABLE_NAME: variableName.name,
-        MODULE_NAME:   node.source.raw,
-        KEY:           key
-      }));
+      file.moduleFormatter.importSpecifier(specifier, node, nodes);
     });
   } else {
-    // import "foo";
-    nodes.push(util.template("require", {
-      MODULE_NAME: node.source.raw
-    }, true));
+    file.moduleFormatter.import(node, nodes);
   }
@@ -40,71 +18,11 @@
 
-var pushExportSpecifiers = function (node, nodes) {
-  _.each(node.specifiers, function (specifier) {
-    var variableName = getSpecifierName(specifier);
-
-    if (node.source) {
-      if (specifier.type === "ExportBatchSpecifier") {
-        // export * from "foo";
-        nodes.push(util.template("exports-wildcard", {
-          MODULE_NAME: node.source.raw
-        }, true));
-      } else {
-        // export { foo } from "test";
-        nodes.push(util.template("exports-require-assign-key", {
-          VARIABLE_NAME: variableName.name,
-          MODULE_NAME:   node.source.raw,
-          KEY:           specifier.id
-        }, true));
-      }
-    } else {
-      // export { foo };
-      nodes.push(util.template("exports-assign", {
-        VALUE: specifier.id,
-        KEY:   variableName
-      }, true));
-    }
-  });
-};
-
-var getSpecifierName = function (specifier) {
-  return specifier.name || specifier.id;
-};
-
-var pushExportDeclaration = function (node, parent, nodes) {
-  var declar = node.declaration;
-
-  if (node.default) {
-    util.ensureExpressionType(declar);
-
-    nodes.push(util.template("exports-default", {
-      VALUE: declar
-    }, true));
-  } else {
-    var id = declar.id;
-    if (declar.type === "VariableDeclaration") {
-      id = declar.declarations[0].id;
-    }
-
-    var assign = util.template("exports-assign", {
-      VALUE: id,
-      KEY:   id
-    }, true);
-
-    nodes.push(declar);
-
-    if (declar.type === "FunctionDeclaration") {
-      assign._blockHoist = true;
-    }
-
-    nodes.push(assign);
-  }
-};
-
-exports.ExportDeclaration = function (node, parent) {
+exports.ExportDeclaration = function (node, parent, file) {
   var nodes = [];
 
   if (node.declaration) {
-    pushExportDeclaration(node, parent, nodes);
+    file.moduleFormatter.export(node, nodes);
   } else {
-    pushExportSpecifiers(node, nodes);
+    _.each(node.specifiers, function (specifier) {
+      file.moduleFormatter.exportSpecifier(specifier, node, nodes);
+    });
   }
@@ -111,0 +29,0 @@

lib/6to5/transformers/react.js

@@ -1,2 +0,2 @@
-var b = require("recast").types.builders;
+var b = require("acorn-ast-types").builders;
 var _ = require("lodash");
@@ -3,0 +3,0 @@

lib/6to5/transformers/rest-parameters.js

 var util = require("../util");
-var b    = require("recast").types.builders;
+var b    = require("acorn-ast-types").builders;
 
@@ -4,0 +4,0 @@ exports.Function = function (node, parent, file) {

lib/6to5/transformers/spread.js

 var util = require("../util");
-var b    = require("recast").types.builders;
+var b    = require("acorn-ast-types").builders;
 var _    = require("lodash");
@@ -17,5 +17,37 @@
 var hasSpread = function (nodes) {
-  return nodes.length && _.last(nodes).type === "SpreadElement";
+  var has = false;
+  _.each(nodes, function (node) {
+    if (node.type === "SpreadElement") {
+      has = true;
+      return false;
+    }
+  });
+  return has;
 };
 
+var build = function (props, file) {
+  var nodes = [];
+
+  var _props = [];
+
+  var push = function () {
+    if (!_props.length) return;
+    nodes.push(b.arrayExpression(_props));
+    _props = [];
+  };
+
+  _.each(props, function (prop) {
+    if (prop.type === "SpreadElement") {
+      push();
+      nodes.push(getSpreadLiteral(prop, file));
+    } else {
+      _props.push(prop);
+    }
+  });
+
+  push();
+
+  return nodes;
+};
+
 exports.ArrayExpression = function (node, parent, file) {
@@ -25,11 +57,8 @@ var elements = node.elements;
 
-  var spread = elements.pop();
+  var nodes = build(elements, file);
+  var first = nodes.shift();
 
-  var concat = util.template("array-concat", {
-    ARGUMENT: getSpreadLiteral(spread, file)
-  });
+  if (!nodes.length) return first;
 
-  concat.callee.object.elements = elements;
-
-  return concat;
+  return b.callExpression(b.memberExpression(first, b.identifier("concat"), false), nodes);
 };
@@ -41,5 +70,2 @@
 
-  var spread = args.pop();
-
-  var spreadLiteral  = getSpreadLiteral(spread, file);
   var contextLiteral = b.literal(null);
@@ -49,9 +75,9 @@
 
-  if (args.length) {
-    var concat = util.template("array-concat");
-    concat.arguments = [spreadLiteral];
-    concat.callee.object.elements = args;
-    node.arguments.push(concat);
+  var nodes = build(args, file);
+  var first = nodes.shift();
+
+  if (nodes.length) {
+    node.arguments.push(b.callExpression(b.memberExpression(first, b.identifier("concat"), false), nodes));
   } else {
-    node.arguments.push(spreadLiteral);
+    node.arguments.push(first);
   }
@@ -58,0 +84,0 @@

lib/6to5/transformers/template-literals.js

@@ -1,2 +0,2 @@
-var b = require("recast").types.builders;
+var b = require("acorn-ast-types").builders;
 var _ = require("lodash");
@@ -3,0 +3,0 @@

lib/6to5/transformers/unicode-regex.js

 var rewritePattern = require("regexpu/rewrite-pattern");
-var b              = require("recast").types.builders;
+var b              = require("acorn-ast-types").builders;
 var _              = require("lodash");
@@ -4,0 +4,0 @@

lib/6to5/transformers/use-strict.js

@@ -1,2 +0,2 @@
-var b = require("recast").types.builders;
+var b = require("acorn-ast-types").builders;
 
@@ -3,0 +3,0 @@ module.exports = function (ast, file) {

lib/6to5/util.js

 var traverse = require("./traverse");
-var astTypes = require("recast").types;
-var recast   = require("recast");
+var astTypes = require("acorn-ast-types");
+var recast   = require("acorn-recast");
 var path     = require("path");
+var util     = require("util");
 var fs       = require("fs");
@@ -11,2 +12,4 @@ var _        = require("lodash");
 
+exports.inherits = util.inherits;
+
 exports.ensureBlock = function (node) {
@@ -24,2 +27,10 @@ var block = node.body;
 
+exports.resolve = function (loc) {
+  try {
+    return require.resolve(loc);
+  } catch (err) {
+    return null;
+  }
+};
+
 exports.list = function (val) {
@@ -29,2 +40,6 @@ return val ? val.split(",") : [];
 
+exports.getSpecifierName = function (specifier) {
+  return specifier.name || specifier.id;
+};
+
 exports.ensureExpressionType = function (node) {
@@ -113,3 +128,3 @@ node.type = {
   var ext = path.extname(filename);
-  return _.contains([".js", ".es6", ".jsx"], ext);
+  return _.contains([".js", ".es6"], ext);
 };
@@ -244,2 +259,3 @@
     var recastOpts = {};
+
     if (opts.sourceMap) {
@@ -262,7 +278,5 @@ recastOpts.sourceFileName = opts.sourceFileName;
 
-      if (err.lineNumber) {
-        var frame = exports.codeFrame(code, err.lineNumber, err.column);
-        var err2 = new SyntaxError(err.message + frame);
-        err2._6to5 = true;
-        throw err2;
+      if (err.loc) {
+        var frame = exports.codeFrame(code, err.loc.line, err.loc.column);
+        err.message = err.message + frame;
       }
@@ -269,0 +283,0 @@ }

package.json

 {
   "name": "6to5",
   "description": "Turn ES6 code into readable vanilla ES5 with source maps",
-  "version": "1.9.10",
+  "version": "1.10.1",
   "author": "Sebastian McKenzie <[e-mail]>",
@@ -37,3 +37,3 @@ "homepage": "https://github.com/sebmck/6to5",
   "dependencies": {
-    "commander": "2.3.0",
+    "commander": "2.4.0",
     "fs-readdir-recursive": "0.0.2",
@@ -48,15 +48,13 @@ "lodash": "2.4.1",
     "regenerator": "0.6.7",
-    "chokidar": "^0.9.0",
-    "source-map-support": "^0.2.7",
-    "esutils": "^1.1.4"
+    "chokidar": "0.10.0",
+    "source-map-support": "0.2.7",
+    "esutils": "1.1.4",
+    "acorn-jsx": "https://github.com/sebmck/acorn-jsx/archive/master.tar.gz",
+    "acorn-recast": "0.8.0-3",
+    "acorn-ast-types": "0.5.3-1"
   },
   "devDependencies": {
-    "es6-transpiler": "0.7.17",
     "istanbul": "0.3.2",
     "matcha": "0.5.0",
     "mocha": "1.21.5",
-    "traceur": "0.0.67",
-    "esnext": "0.11.1",
-    "es6now": "0.8.11",
-    "jstransform": "6.3.2",
     "uglify-js": "2.4.15",
@@ -63,0 +61,0 @@ "browserify": "6.1.0",

templates.json

@@ -1,1 +0,1 @@
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