Method parseSimpleUnaryExpression

internal/parser/parser.go:5065–5093

()

}

func (p *Parser) parseSimpleUnaryExpression() *ast.Expression {
	switch p.token {
	case ast.KindPlusToken, ast.KindMinusToken, ast.KindTildeToken, ast.KindExclamationToken:
		return p.parsePrefixUnaryExpression()
	case ast.KindDeleteKeyword:
		return p.parseDeleteExpression()
	case ast.KindTypeOfKeyword:
		return p.parseTypeOfExpression()
	case ast.KindVoidKeyword:
		return p.parseVoidExpression()
	case ast.KindLessThanToken:
		// Just like in parseUpdateExpression, we need to avoid parsing type assertions when
		// in JSX and we see an expression like "+ <foo> bar".
		if p.languageVariant == core.LanguageVariantJSX {
			return p.parseJsxElementOrSelfClosingElementOrFragment(true /*inExpressionContext*/, -1 /*topInvalidNodePosition*/, nil /*openingTag*/, true /*mustBeUnary*/)
		}
		// // This is modified UnaryExpression grammar in TypeScript
		// //  UnaryExpression (modified):
		// //      < type > UnaryExpression
		return p.parseTypeAssertion()
	case ast.KindAwaitKeyword:
		if p.isAwaitExpression() {
			return p.parseAwaitExpression()
		}
		fallthrough
	default:
		return p.parseUpdateExpression()
	}
}

func (p *Parser) parsePrefixUnaryExpression() *ast.Node {
	pos := p.nodePos()