public Node parseImportDeclaration()
{
List<Node> specifiers = new List<Node>();
Node src;
Node node = new Node();
if (state.inFunctionBody)
{
throwError(Messages.IllegalImportDeclaration);
}
expectKeyword("import");
if (lookahead.type == TokenType.StringLiteral)
{
// import "foo";
src = parseModuleSpecifier();
}
else
{
if (match("{"))
{
// import {bar}
specifiers = specifiers.Concat(parseNamedImports()).ToList();
}
else if (match("*"))
{
// import * as foo
specifiers.Add(parseImportNamespaceSpecifier());
}
else if (isIdentifierName(lookahead) && !matchKeyword("default"))
{
// import foo
specifiers.Add(parseImportDefaultSpecifier());
if (match(","))
{
lex();
if (match("*"))
{
// import foo, * as foo
specifiers.Add(parseImportNamespaceSpecifier());
}
else if (match("{"))
{
// import foo, {bar}
specifiers = specifiers.Concat(parseNamedImports()).ToList();
}
else
{
throwUnexpectedToken(lookahead);
}
}
}
else
{
throwUnexpectedToken(lex());
}
if (!matchContextualKeyword("from"))
{
throwError(
string.IsNullOrEmpty(lookahead.value) ? Messages.UnexpectedToken : Messages.MissingFromClause,
lookahead.value);
}
lex();
src = parseModuleSpecifier();
}
consumeSemicolon();
return node.finishImportDeclaration(specifiers, src.ToString());
}