[estree] Align export ... representations.

acorn.js

@@ -2694,15 +2694,13 @@
 
   pp.parseExport = function(node) {
     this.next();
-    // export var|const|let|function|class ...;
+    // export * from '...';
-    if (this.type === tt._var || this.type === tt._const || this.type === tt._let || this.type === tt._function || this.type === tt._class) {
+    if (this.eat(tt.star)) {
-      node.declaration = this.parseStatement(true);
+      this.expectContextual("from");
-      node['default'] = false;
+      node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected();
-      node.specifiers = null;
+      return this.finishNode(node, "ExportAllDeclaration");
-      node.source = null;
+    }
-    } else
+    if (this.eat(tt._default)) { // export default ...;
-    // export default ...;
-    if (this.eat(tt._default)) {
       var expr = this.parseMaybeAssign();
       if (expr.id) {
         switch (expr.type) {
@@ -2711,51 +2709,43 @@
         }
       }
       node.declaration = expr;
-      node['default'] = true;
-      node.specifiers = null;
-      node.source = null;
       this.semicolon();
-    } else {
+      return this.finishNode(node, "ExportDefaultDeclaration");
-      // export * from '...';
+    }
-      // export { x, y as z } [from '...'];
+    // export var|const|let|function|class ...;
-      var isBatch = this.type === tt.star;
+    if (this.type.keyword) {
+      node.declaration = this.parseStatement(true);
+      node.specifiers = [];
+      node.source = null;
+    } else { // export { x, y as z } [from '...'];
       node.declaration = null;
-      node['default'] = false;
       node.specifiers = this.parseExportSpecifiers();
       if (this.eatContextual("from")) {
         node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected();
       } else {
-        if (isBatch) this.unexpected();
         node.source = null;
       }
       this.semicolon();
     }
-    return this.finishNode(node, "ExportDeclaration");
+    return this.finishNode(node, "ExportNamedDeclaration");
   };
 
   // Parses a comma-separated list of module exports.
 
   pp.parseExportSpecifiers = function() {
     var nodes = [], first = true;
-    if (this.type === tt.star) {
+    // export { x, y as z } [from '...']
-      // export * from '...'
+    this.expect(tt.braceL);
-      var node = this.startNode();
+    while (!this.eat(tt.braceR)) {
-      this.next();
+      if (!first) {
-      nodes.push(this.finishNode(node, "ExportBatchSpecifier"));
+        this.expect(tt.comma);
-    } else {
+        if (this.options.allowTrailingCommas && this.eat(tt.braceR)) break;
-      // export { x, y as z } [from '...']
+      } else first = false;
-      this.expect(tt.braceL);
-      while (!this.eat(tt.braceR)) {
-        if (!first) {
-          this.expect(tt.comma);
-          if (this.options.allowTrailingCommas && this.eat(tt.braceR)) break;
-        } else first = false;
 
-        var node = this.startNode();
+      var node = this.startNode();
-        node.id = this.parseIdent(this.type === tt._default);
+      node.local = this.parseIdent(this.type === tt._default);
-        node.name = this.eatContextual("as") ? this.parseIdent(true) : null;
+      node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local;
-        nodes.push(this.finishNode(node, "ExportSpecifier"));
+      nodes.push(this.finishNode(node, "ExportSpecifier"));
-      }
     }
     return nodes;
   };

acorn_loose.js

@@ -1042,9 +1042,11 @@
   lp.parseExport = function() {
     var node = this.startNode();
     this.next();
-    node['default'] = this.eat(tt._default);
+    if (this.eat(tt.star)) {
-    node.specifiers = node.source = null;
+      node.source = this.eatContextual("from") ? this.parseExprAtom() : null;
-    if (node['default']) {
+      return this.finishNode(node, "ExportAllDeclaration");
+    }
+    if (this.eat(tt._default)) {
       var expr = this.parseMaybeAssign();
       if (expr.id) {
         switch (expr.type) {
@@ -1054,14 +1056,19 @@
       }
       node.declaration = expr;
       this.semicolon();
-    } else if (this.tok.type.keyword) {
+      return this.finishNode(node, "ExportDefaultDeclaration");
+    }
+    if (this.tok.type.keyword) {
       node.declaration = this.parseStatement();
+      node.specifiers = [];
+      node.source = null;
     } else {
       node.declaration = null;
-      this.parseExportSpecifierList(node);
+      node.specifiers = this.parseExportSpecifierList();
+      node.source = this.eatContextual("from") ? this.parseExprAtom() : null;
+      this.semicolon();
     }
-    this.semicolon();
+    return this.finishNode(node, "ExportNamedDeclaration");
-    return this.finishNode(node, "ExportDeclaration");
   };
 
   lp.parseImport = function() {
@@ -1078,15 +1085,16 @@
         this.finishNode(elt, "ImportDefaultSpecifier");
         this.eat(tt.comma);
       }
-      this.parseImportSpecifierList(node);
+      node.specifiers = this.parseImportSpecifierList();
+      node.source = this.eatContextual("from") ? this.parseExprAtom() : null;
       if (elt) node.specifiers.unshift(elt);
     }
     this.semicolon();
     return this.finishNode(node, "ImportDeclaration");
   };
 
-  lp.parseImportSpecifierList = function(node) {
+  lp.parseImportSpecifierList = function() {
-    var elts = node.specifiers = [];
+    var elts = [];
     if (this.tok.type === tt.star) {
       var elt = this.startNode();
       this.next();
@@ -1114,39 +1122,27 @@
       this.eat(tt.braceR);
       this.popCx();
     }
-    node.source = this.eatContextual("from") ? this.parseExprAtom() : null;
+    return elts;
   };
 
-  lp.parseExportSpecifierList = function(node) {
+  lp.parseExportSpecifierList = function() {
-    var elts = node.specifiers = [];
+    var elts = [];
-    if (this.tok.type === tt.star) {
+    var indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart;
+    this.pushCx();
+    this.eat(tt.braceL);
+    if (this.curLineStart > continuedLine) continuedLine = this.curLineStart;
+    while (!this.closes(tt.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) {
+      if (this.isContextual("from")) break;
       var elt = this.startNode();
-      this.next();
+      elt.local = this.parseIdent();
-      if (this.eatContextual("as")) elt.name = this.parseIdent();
+      elt.exported = this.eatContextual("as") ? this.parseIdent() : elt.local;
-      elts.push(this.finishNode(elt, "ExportBatchSpecifier"));
+      this.finishNode(elt, "ExportSpecifier");
-    } else {
+      elts.push(elt);
-      var indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart;
+      this.eat(tt.comma);
-      this.pushCx();
-      this.eat(tt.braceL);
-      if (this.curLineStart > continuedLine) continuedLine = this.curLineStart;
-      while (!this.closes(tt.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) {
-        var elt = this.startNode();
-        if (this.eat(tt.star)) {
-          if (this.eatContextual("as")) elt.name = this.parseIdent();
-          this.finishNode(elt, "ExportBatchSpecifier");
-        } else {
-          if (this.isContextual("from")) break;
-          elt.id = this.parseIdent();
-          elt.name = this.eatContextual("as") ? this.parseIdent() : null;
-          this.finishNode(elt, "ExportSpecifier");
-        }
-        elts.push(elt);
-        this.eat(tt.comma);
-      }
-      this.eat(tt.braceR);
-      this.popCx();
     }
-    node.source = this.eatContextual("from") ? this.parseExprAtom() : null;
+    this.eat(tt.braceR);
+    this.popCx();
+    return elts;
   };
 
   lp.parseExprList = function(close, allowEmpty) {

test/tests-harmony.js

@@ -4453,7 +4453,7 @@ test("var {a:b} = {}", {
 test("export var document", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportNamedDeclaration",
     declaration: {
       type: "VariableDeclaration",
       declarations: [{
@@ -4478,8 +4478,7 @@ test("export var document", {
         end: {line: 1, column: 19}
       }
     },
-    default: false,
+    specifiers: [],
-    specifiers: null,
     source: null,
     loc: {
       start: {line: 1, column: 0},
@@ -4499,7 +4498,7 @@ test("export var document", {
 test("export var document = { }", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportNamedDeclaration",
     declaration: {
       type: "VariableDeclaration",
       declarations: [{
@@ -4531,8 +4530,7 @@ test("export var document = { }", {
         end: {line: 1, column: 25}
       }
     },
-    default: false,
+    specifiers: [],
-    specifiers: null,
     source: null,
     loc: {
       start: {line: 1, column: 0},
@@ -4552,7 +4550,7 @@ test("export var document = { }", {
 test("export let document", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportNamedDeclaration",
     declaration: {
       type: "VariableDeclaration",
       declarations: [{
@@ -4577,8 +4575,7 @@ test("export let document", {
         end: {line: 1, column: 19}
       }
     },
-    default: false,
+    specifiers: [],
-    specifiers: null,
     source: null,
     loc: {
       start: {line: 1, column: 0},
@@ -4598,7 +4595,7 @@ test("export let document", {
 test("export let document = { }", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportNamedDeclaration",
     declaration: {
       type: "VariableDeclaration",
       declarations: [{
@@ -4630,8 +4627,7 @@ test("export let document = { }", {
         end: {line: 1, column: 25}
       }
     },
-    default: false,
+    specifiers: [],
-    specifiers: null,
     source: null,
     loc: {
       start: {line: 1, column: 0},
@@ -4651,7 +4647,7 @@ test("export let document = { }", {
 test("export const document = { }", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportNamedDeclaration",
     declaration: {
       type: "VariableDeclaration",
       declarations: [{
@@ -4683,8 +4679,7 @@ test("export const document = { }", {
         end: {line: 1, column: 27}
       }
     },
-    default: false,
+    specifiers: [],
-    specifiers: null,
     source: null,
     loc: {
       start: {line: 1, column: 0},
@@ -4704,7 +4699,7 @@ test("export const document = { }", {
 test("export function parse() { }", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportNamedDeclaration",
     declaration: {
       type: "FunctionDeclaration",
       id: {
@@ -4731,8 +4726,7 @@ test("export function parse() { }", {
         end: {line: 1, column: 27}
       }
     },
-    default: false,
+    specifiers: [],
-    specifiers: null,
     source: null,
     loc: {
       start: {line: 1, column: 0},
@@ -4752,7 +4746,7 @@ test("export function parse() { }", {
 test("export class Class {}", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportNamedDeclaration",
     declaration: {
       type: "ClassDeclaration",
       id: {
@@ -4777,8 +4771,7 @@ test("export class Class {}", {
         end: {line: 1, column: 21}
       }
     },
-    default: false,
+    specifiers: [],
-    specifiers: null,
     source: null,
     loc: {
       start: {line: 1, column: 0},
@@ -4798,7 +4791,7 @@ test("export class Class {}", {
 test("export default 42", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportDefaultDeclaration",
     declaration: {
       type: "Literal",
       value: 42,
@@ -4808,9 +4801,6 @@ test("export default 42", {
         end: {line: 1, column: 17}
       }
     },
-    default: true,
-    specifiers: null,
-    source: null,
     loc: {
       start: {line: 1, column: 0},
       end: {line: 1, column: 17}
@@ -4830,7 +4820,7 @@ test("export default function () {}", {
   type: "Program",
   range: [0, 29],
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportDefaultDeclaration",
     range: [0, 29],
     declaration: {
       type: "FunctionExpression",
@@ -4844,10 +4834,7 @@ test("export default function () {}", {
         range: [27, 29],
         body: []
       }
-    },
+    }
-    default: true,
-    specifiers: null,
-    source: null
   }]
 }, {ecmaVersion: 6, ranges: true});
 
@@ -4855,7 +4842,7 @@ test("export default function f() {}", {
   type: "Program",
   range: [0, 30],
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportDefaultDeclaration",
     range: [0, 30],
     declaration: {
       type: "FunctionDeclaration",
@@ -4873,10 +4860,7 @@ test("export default function f() {}", {
         range: [28, 30],
         body: []
       }
-    },
+    }
-    default: true,
-    specifiers: null,
-    source: null
   }]
 }, {ecmaVersion: 6, ranges: true});
 
@@ -4884,7 +4868,7 @@ test("export default class {}", {
   type: "Program",
   range: [0, 23],
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportDefaultDeclaration",
     range: [0, 23],
     declaration: {
       type: "ClassExpression",
@@ -4896,10 +4880,7 @@ test("export default class {}", {
         range: [21, 23],
         body: []
       }
-    },
+    }
-    default: true,
-    specifiers: null,
-    source: null
   }]
 }, {ecmaVersion: 6, ranges: true});
 
@@ -4907,7 +4888,7 @@ test("export default class A {}", {
   type: "Program",
   range: [0, 25],
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportDefaultDeclaration",
     range: [0, 25],
     declaration: {
       type: "ClassDeclaration",
@@ -4923,10 +4904,7 @@ test("export default class A {}", {
         range: [23, 25],
         body: []
       }
-    },
+    }
-    default: true,
-    specifiers: null,
-    source: null
   }]
 }, {ecmaVersion: 6, ranges: true});
 
@@ -4935,15 +4913,7 @@ testFail("export *", "Unexpected token (1:8)", {ecmaVersion: 6});
 test("export * from \"crypto\"", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportAllDeclaration",
-    declaration: null,
-    specifiers: [{
-      type: "ExportBatchSpecifier",
-      loc: {
-        start: {line: 1, column: 7},
-        end: {line: 1, column: 8}
-      }
-    }],
     source: {
       type: "Literal",
       value: "crypto",
@@ -4971,11 +4941,19 @@ test("export * from \"crypto\"", {
 test("export { encrypt }", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportNamedDeclaration",
     declaration: null,
     specifiers: [{
       type: "ExportSpecifier",
-      id: {
+      exported: {
+        type: "Identifier",
+        name: "encrypt",
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 16}
+        }
+      },
+      local: {
         type: "Identifier",
         name: "encrypt",
         loc: {
@@ -4983,7 +4961,6 @@ test("export { encrypt }", {
           end: {line: 1, column: 16}
         }
       },
-      name: null,
       loc: {
         start: {line: 1, column: 9},
         end: {line: 1, column: 16}
@@ -5008,12 +4985,20 @@ test("export { encrypt }", {
 test("export { encrypt, decrypt }", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportNamedDeclaration",
     declaration: null,
     specifiers: [
       {
         type: "ExportSpecifier",
-        id: {
+        exported: {
+          type: "Identifier",
+          name: "encrypt",
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 16}
+          }
+        },
+        local: {
           type: "Identifier",
           name: "encrypt",
           loc: {
@@ -5021,7 +5006,6 @@ test("export { encrypt, decrypt }", {
             end: {line: 1, column: 16}
           }
         },
-        name: null,
         loc: {
           start: {line: 1, column: 9},
           end: {line: 1, column: 16}
@@ -5029,7 +5013,15 @@ test("export { encrypt, decrypt }", {
       },
       {
         type: "ExportSpecifier",
-        id: {
+        exported: {
+          type: "Identifier",
+          name: "decrypt",
+          loc: {
+            start: {line: 1, column: 18},
+            end: {line: 1, column: 25}
+          }
+        },
+        local: {
           type: "Identifier",
           name: "decrypt",
           loc: {
@@ -5037,7 +5029,6 @@ test("export { encrypt, decrypt }", {
             end: {line: 1, column: 25}
           }
         },
-        name: null,
         loc: {
           start: {line: 1, column: 18},
           end: {line: 1, column: 25}
@@ -5063,19 +5054,11 @@ test("export { encrypt, decrypt }", {
 test("export { encrypt as default }", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportNamedDeclaration",
     declaration: null,
     specifiers: [{
       type: "ExportSpecifier",
-      id: {
+      exported: {
-        type: "Identifier",
-        name: "encrypt",
-        loc: {
-          start: {line: 1, column: 9},
-          end: {line: 1, column: 16}
-        }
-      },
-      name: {
         type: "Identifier",
         name: "default",
         loc: {
@@ -5083,6 +5066,14 @@ test("export { encrypt as default }", {
           end: {line: 1, column: 27}
         }
       },
+      local: {
+        type: "Identifier",
+        name: "encrypt",
+        loc: {
+          start: {line: 1, column: 9},
+          end: {line: 1, column: 16}
+        }
+      },
       loc: {
         start: {line: 1, column: 9},
         end: {line: 1, column: 27}
@@ -5107,12 +5098,20 @@ test("export { encrypt as default }", {
 test("export { encrypt, decrypt as dec }", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportNamedDeclaration",
     declaration: null,
     specifiers: [
       {
         type: "ExportSpecifier",
-        id: {
+        exported: {
+          type: "Identifier",
+          name: "encrypt",
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 16}
+          }
+        },
+        local: {
           type: "Identifier",
           name: "encrypt",
           loc: {
@@ -5120,7 +5119,6 @@ test("export { encrypt, decrypt as dec }", {
             end: {line: 1, column: 16}
           }
         },
-        name: null,
         loc: {
           start: {line: 1, column: 9},
           end: {line: 1, column: 16}
@@ -5128,15 +5126,7 @@ test("export { encrypt, decrypt as dec }", {
       },
       {
         type: "ExportSpecifier",
-        id: {
+        exported: {
-          type: "Identifier",
-          name: "decrypt",
-          loc: {
-            start: {line: 1, column: 18},
-            end: {line: 1, column: 25}
-          }
-        },
-        name: {
           type: "Identifier",
           name: "dec",
           loc: {
@@ -5144,6 +5134,14 @@ test("export { encrypt, decrypt as dec }", {
             end: {line: 1, column: 32}
           }
         },
+        local: {
+          type: "Identifier",
+          name: "decrypt",
+          loc: {
+            start: {line: 1, column: 18},
+            end: {line: 1, column: 25}
+          }
+        },
         loc: {
           start: {line: 1, column: 18},
           end: {line: 1, column: 32}
@@ -5169,12 +5167,20 @@ test("export { encrypt, decrypt as dec }", {
 test("export { default } from \"other\"", {
   type: "Program",
   body: [{
-    type: "ExportDeclaration",
+    type: "ExportNamedDeclaration",
     declaration: null,
     specifiers: [
       {
         type: "ExportSpecifier",
-        id: {
+        exported: {
+          type: "Identifier",
+          name: "default",
+          loc: {
+            start: {line: 1, column: 9},
+            end: {line: 1, column: 16}
+          }
+        },
+        local: {
           type: "Identifier",
           name: "default",
           loc: {
@@ -5182,7 +5188,6 @@ test("export { default } from \"other\"", {
             end: {line: 1, column: 16}
           }
         },
-        name: null,
         loc: {
           start: {line: 1, column: 9},
           end: {line: 1, column: 16}