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add support for export types

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This commit is contained in:
Sebastian McKenzie
2015-07-31 23:34:45 +01:00
parent 8352730ff5
commit 855ee71d59
14 changed files with 385 additions and 31 deletions
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35
packages/babylon/src/parser/statement.js
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@@ -627,9 +627,9 @@ pp.parseExport = function (node) {
specifier.exported = this.parseIdent();
node.specifiers = [this.finishNode(specifier, "ExportNamespaceSpecifier")];
this.parseExportSpecifiersMaybe(node);
this.parseExportFrom(node);
this.parseExportFrom(node, true);
} else {
this.parseExportFrom(node);
this.parseExportFrom(node, true);
return this.finishNode(node, "ExportAllDeclaration");
}
} else if (this.options.features["es7.exportExtensions"] && this.isExportDefaultSpecifier()) {
@@ -646,7 +646,7 @@ pp.parseExport = function (node) {
} else {
this.parseExportSpecifiersMaybe(node);
}
this.parseExportFrom(node);
this.parseExportFrom(node, true);
} else if (this.eat(tt._default)) { // export default ...
let expr = this.parseMaybeAssign();
let needsSemi = true;
@@ -661,23 +661,22 @@ pp.parseExport = function (node) {
this.checkExport(node);
return this.finishNode(node, "ExportDefaultDeclaration");
} else if (this.state.type.keyword || this.shouldParseExportDeclaration()) {
node.declaration = this.parseStatement(true);
node.specifiers = [];
node.source = null;
node.declaration = this.parseExportDeclaration(node);
} else { // export { x, y as z } [from '...']
node.declaration = null;
node.specifiers = this.parseExportSpecifiers();
if (this.eatContextual("from")) {
node.source = this.match(tt.string) ? this.parseExprAtom() : this.unexpected();
} else {
node.source = null;
}
this.semicolon();
this.parseExportFrom(node);
}
this.checkExport(node);
return this.finishNode(node, "ExportNamedDeclaration");
};
pp.parseExportDeclaration = function () {
return this.parseStatement(true);
};
pp.isExportDefaultSpecifier = function () {
if (this.match(tt.name)) {
return this.state.value !== "type" && this.state.value !== "async";
@@ -697,11 +696,19 @@ pp.parseExportSpecifiersMaybe = function (node) {
}
};
pp.parseExportFrom = function (node) {
this.expectContextual("from");
node.source = this.match(tt.string) ? this.parseExprAtom() : this.unexpected();
pp.parseExportFrom = function (node, expect?) {
if (this.eatContextual("from")) {
node.source = this.match(tt.string) ? this.parseExprAtom() : this.unexpected();
this.checkExport(node);
} else {
if (expect) {
this.unexpected();
} else {
node.source = null;
}
}
this.semicolon();
this.checkExport(node);
};
pp.shouldParseExportDeclaration = function () {