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"use strict";Object.defineProperty(exports, "__esModule", {value: true});var _flow = require('../plugins/flow');
var _typescript = require('../plugins/typescript');
var _index = require('../tokenizer/index');
var _keywords = require('../tokenizer/keywords');
var _types = require('../tokenizer/types');
var _base = require('./base');
var _expression = require('./expression');
var _util = require('./util');
function parseSpread() {
_index.next.call(void 0, );
_expression.parseMaybeAssign.call(void 0, false);
} exports.parseSpread = parseSpread;
function parseRest(isBlockScope) {
_index.next.call(void 0, );
parseBindingAtom(isBlockScope);
} exports.parseRest = parseRest;
function parseBindingIdentifier(isBlockScope) {
_expression.parseIdentifier.call(void 0, );
markPriorBindingIdentifier(isBlockScope);
} exports.parseBindingIdentifier = parseBindingIdentifier;
function parseImportedIdentifier() {
_expression.parseIdentifier.call(void 0, );
_base.state.tokens[_base.state.tokens.length - 1].identifierRole = _index.IdentifierRole.ImportDeclaration;
} exports.parseImportedIdentifier = parseImportedIdentifier;
function markPriorBindingIdentifier(isBlockScope) {
let identifierRole;
if (_base.state.scopeDepth === 0) {
identifierRole = _index.IdentifierRole.TopLevelDeclaration;
} else if (isBlockScope) {
identifierRole = _index.IdentifierRole.BlockScopedDeclaration;
} else {
identifierRole = _index.IdentifierRole.FunctionScopedDeclaration;
}
_base.state.tokens[_base.state.tokens.length - 1].identifierRole = identifierRole;
} exports.markPriorBindingIdentifier = markPriorBindingIdentifier;
// Parses lvalue (assignable) atom.
function parseBindingAtom(isBlockScope) {
switch (_base.state.type) {
case _types.TokenType._this: {
// In TypeScript, "this" may be the name of a parameter, so allow it.
const oldIsType = _index.pushTypeContext.call(void 0, 0);
_index.next.call(void 0, );
_index.popTypeContext.call(void 0, oldIsType);
return;
}
case _types.TokenType._yield:
case _types.TokenType.name: {
_base.state.type = _types.TokenType.name;
parseBindingIdentifier(isBlockScope);
return;
}
case _types.TokenType.bracketL: {
_index.next.call(void 0, );
parseBindingList(_types.TokenType.bracketR, isBlockScope, true /* allowEmpty */);
return;
}
case _types.TokenType.braceL:
_expression.parseObj.call(void 0, true, isBlockScope);
return;
default:
_util.unexpected.call(void 0, );
}
} exports.parseBindingAtom = parseBindingAtom;
function parseBindingList(
close,
isBlockScope,
allowEmpty = false,
allowModifiers = false,
contextId = 0,
) {
let first = true;
let hasRemovedComma = false;
const firstItemTokenIndex = _base.state.tokens.length;
while (!_index.eat.call(void 0, close) && !_base.state.error) {
if (first) {
first = false;
} else {
_util.expect.call(void 0, _types.TokenType.comma);
_base.state.tokens[_base.state.tokens.length - 1].contextId = contextId;
// After a "this" type in TypeScript, we need to set the following comma (if any) to also be
// a type token so that it will be removed.
if (!hasRemovedComma && _base.state.tokens[firstItemTokenIndex].isType) {
_base.state.tokens[_base.state.tokens.length - 1].isType = true;
hasRemovedComma = true;
}
}
if (allowEmpty && _index.match.call(void 0, _types.TokenType.comma)) {
// Empty item; nothing further to parse for this item.
} else if (_index.eat.call(void 0, close)) {
break;
} else if (_index.match.call(void 0, _types.TokenType.ellipsis)) {
parseRest(isBlockScope);
parseAssignableListItemTypes();
// Support rest element trailing commas allowed by TypeScript <2.9.
_index.eat.call(void 0, _types.TokenType.comma);
_util.expect.call(void 0, close);
break;
} else {
parseAssignableListItem(allowModifiers, isBlockScope);
}
}
} exports.parseBindingList = parseBindingList;
function parseAssignableListItem(allowModifiers, isBlockScope) {
if (allowModifiers) {
_typescript.tsParseModifiers.call(void 0, [
_keywords.ContextualKeyword._public,
_keywords.ContextualKeyword._protected,
_keywords.ContextualKeyword._private,
_keywords.ContextualKeyword._readonly,
_keywords.ContextualKeyword._override,
]);
}
parseMaybeDefault(isBlockScope);
parseAssignableListItemTypes();
parseMaybeDefault(isBlockScope, true /* leftAlreadyParsed */);
}
function parseAssignableListItemTypes() {
if (_base.isFlowEnabled) {
_flow.flowParseAssignableListItemTypes.call(void 0, );
} else if (_base.isTypeScriptEnabled) {
_typescript.tsParseAssignableListItemTypes.call(void 0, );
}
}
// Parses assignment pattern around given atom if possible.
function parseMaybeDefault(isBlockScope, leftAlreadyParsed = false) {
if (!leftAlreadyParsed) {
parseBindingAtom(isBlockScope);
}
if (!_index.eat.call(void 0, _types.TokenType.eq)) {
return;
}
const eqIndex = _base.state.tokens.length - 1;
_expression.parseMaybeAssign.call(void 0, );
_base.state.tokens[eqIndex].rhsEndIndex = _base.state.tokens.length;
} exports.parseMaybeDefault = parseMaybeDefault;
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