Tailwind css added
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159
node_modules/sucrase/dist/esm/parser/traverser/lval.js
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159
node_modules/sucrase/dist/esm/parser/traverser/lval.js
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import {flowParseAssignableListItemTypes} from "../plugins/flow";
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import {tsParseAssignableListItemTypes, tsParseModifiers} from "../plugins/typescript";
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import {
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eat,
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IdentifierRole,
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match,
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next,
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popTypeContext,
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pushTypeContext,
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} from "../tokenizer/index";
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import {ContextualKeyword} from "../tokenizer/keywords";
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import {TokenType, TokenType as tt} from "../tokenizer/types";
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import {isFlowEnabled, isTypeScriptEnabled, state} from "./base";
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import {parseIdentifier, parseMaybeAssign, parseObj} from "./expression";
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import {expect, unexpected} from "./util";
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export function parseSpread() {
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next();
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parseMaybeAssign(false);
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}
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export function parseRest(isBlockScope) {
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next();
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parseBindingAtom(isBlockScope);
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}
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export function parseBindingIdentifier(isBlockScope) {
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parseIdentifier();
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markPriorBindingIdentifier(isBlockScope);
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}
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export function parseImportedIdentifier() {
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parseIdentifier();
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state.tokens[state.tokens.length - 1].identifierRole = IdentifierRole.ImportDeclaration;
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}
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export function markPriorBindingIdentifier(isBlockScope) {
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let identifierRole;
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if (state.scopeDepth === 0) {
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identifierRole = IdentifierRole.TopLevelDeclaration;
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} else if (isBlockScope) {
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identifierRole = IdentifierRole.BlockScopedDeclaration;
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} else {
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identifierRole = IdentifierRole.FunctionScopedDeclaration;
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}
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state.tokens[state.tokens.length - 1].identifierRole = identifierRole;
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}
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// Parses lvalue (assignable) atom.
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export function parseBindingAtom(isBlockScope) {
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switch (state.type) {
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case tt._this: {
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// In TypeScript, "this" may be the name of a parameter, so allow it.
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const oldIsType = pushTypeContext(0);
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next();
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popTypeContext(oldIsType);
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return;
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}
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case tt._yield:
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case tt.name: {
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state.type = tt.name;
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parseBindingIdentifier(isBlockScope);
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return;
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}
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case tt.bracketL: {
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next();
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parseBindingList(tt.bracketR, isBlockScope, true /* allowEmpty */);
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return;
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}
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case tt.braceL:
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parseObj(true, isBlockScope);
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return;
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default:
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unexpected();
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}
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}
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export function parseBindingList(
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close,
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isBlockScope,
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allowEmpty = false,
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allowModifiers = false,
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contextId = 0,
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) {
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let first = true;
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let hasRemovedComma = false;
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const firstItemTokenIndex = state.tokens.length;
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while (!eat(close) && !state.error) {
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if (first) {
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first = false;
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} else {
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expect(tt.comma);
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state.tokens[state.tokens.length - 1].contextId = contextId;
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// After a "this" type in TypeScript, we need to set the following comma (if any) to also be
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// a type token so that it will be removed.
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if (!hasRemovedComma && state.tokens[firstItemTokenIndex].isType) {
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state.tokens[state.tokens.length - 1].isType = true;
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hasRemovedComma = true;
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}
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}
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if (allowEmpty && match(tt.comma)) {
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// Empty item; nothing further to parse for this item.
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} else if (eat(close)) {
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break;
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} else if (match(tt.ellipsis)) {
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parseRest(isBlockScope);
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parseAssignableListItemTypes();
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// Support rest element trailing commas allowed by TypeScript <2.9.
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eat(TokenType.comma);
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expect(close);
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break;
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} else {
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parseAssignableListItem(allowModifiers, isBlockScope);
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}
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}
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}
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function parseAssignableListItem(allowModifiers, isBlockScope) {
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if (allowModifiers) {
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tsParseModifiers([
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ContextualKeyword._public,
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ContextualKeyword._protected,
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ContextualKeyword._private,
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ContextualKeyword._readonly,
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ContextualKeyword._override,
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]);
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}
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parseMaybeDefault(isBlockScope);
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parseAssignableListItemTypes();
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parseMaybeDefault(isBlockScope, true /* leftAlreadyParsed */);
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}
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function parseAssignableListItemTypes() {
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if (isFlowEnabled) {
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flowParseAssignableListItemTypes();
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} else if (isTypeScriptEnabled) {
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tsParseAssignableListItemTypes();
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}
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}
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// Parses assignment pattern around given atom if possible.
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export function parseMaybeDefault(isBlockScope, leftAlreadyParsed = false) {
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if (!leftAlreadyParsed) {
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parseBindingAtom(isBlockScope);
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}
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if (!eat(tt.eq)) {
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return;
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}
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const eqIndex = state.tokens.length - 1;
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parseMaybeAssign();
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state.tokens[eqIndex].rhsEndIndex = state.tokens.length;
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}
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