Function IsExpressionNode

internal/ast/utilities.go:1929–1962

(node *Node)

}

func IsExpressionNode(node *Node) bool {
	switch node.Kind {
	case KindSuperKeyword, KindNullKeyword, KindTrueKeyword, KindFalseKeyword, KindRegularExpressionLiteral,
		KindArrayLiteralExpression, KindObjectLiteralExpression, KindPropertyAccessExpression, KindElementAccessExpression,
		KindCallExpression, KindNewExpression, KindTaggedTemplateExpression, KindAsExpression, KindTypeAssertionExpression,
		KindSatisfiesExpression, KindNonNullExpression, KindParenthesizedExpression, KindFunctionExpression,
		KindClassExpression, KindArrowFunction, KindVoidExpression, KindDeleteExpression, KindTypeOfExpression,
		KindPrefixUnaryExpression, KindPostfixUnaryExpression, KindBinaryExpression, KindConditionalExpression,
		KindSpreadElement, KindTemplateExpression, KindOmittedExpression, KindJsxElement, KindJsxSelfClosingElement,
		KindJsxFragment, KindYieldExpression, KindAwaitExpression:
		return true
	case KindMetaProperty:
		// `import.defer` in `import.defer(...)` is not an expression
		return !IsImportCall(node.Parent) || node.Parent.Expression() != node
	case KindExpressionWithTypeArguments:
		return !IsHeritageClause(node.Parent)
	case KindQualifiedName:
		for node.Parent.Kind == KindQualifiedName {
			node = node.Parent
		}
		return IsTypeQueryNode(node.Parent) || IsJSDocLinkLike(node.Parent) || IsJSDocNameReference(node.Parent) || IsJsxTagName(node)
	case KindPrivateIdentifier:
		return IsBinaryExpression(node.Parent) && node.Parent.AsBinaryExpression().Left == node && node.Parent.AsBinaryExpression().OperatorToken.Kind == KindInKeyword
	case KindIdentifier:
		if IsTypeQueryNode(node.Parent) || IsJSDocLinkLike(node.Parent) || IsJSDocNameReference(node.Parent) || IsJsxTagName(node) {
			return true
		}
		fallthrough
	case KindNumericLiteral, KindBigIntLiteral, KindStringLiteral, KindNoSubstitutionTemplateLiteral, KindThisKeyword:
		return IsInExpressionContext(node)
	default:
		return false
	}
}

func IsInExpressionContext(node *Node) bool {
	parent := node.Parent