From ce7905f6a6f7630b14242e654d5bbc4d98248278 Mon Sep 17 00:00:00 2001
From: Asuka <yanghang8612@163.com>
Date: Thu, 18 Jun 2026 10:17:43 +0800
Subject: [PATCH] fix(astimport): accept sun/trx subdenominations

The exporter emits sun/trx but the importer rejected them, aborting
--import-ast on any contract with a TRX literal.
---
 libsolidity/ast/ASTJsonImporter.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libsolidity/ast/ASTJsonImporter.cpp b/libsolidity/ast/ASTJsonImporter.cpp
index ee52bf53c27d..777d1d13163e 100644
--- a/libsolidity/ast/ASTJsonImporter.cpp
+++ b/libsolidity/ast/ASTJsonImporter.cpp
@@ -1225,6 +1225,10 @@ Literal::SubDenomination ASTJsonImporter::subdenomination(Json const& _node)
 		return Literal::SubDenomination::Gwei;
 	else if (subDenStr == "ether")
 		return Literal::SubDenomination::Ether;
+	else if (subDenStr == "sun")
+		return Literal::SubDenomination::Sun;
+	else if (subDenStr == "trx")
+		return Literal::SubDenomination::Trx;
 	else if (subDenStr == "seconds")
 		return Literal::SubDenomination::Second;
 	else if (subDenStr == "minutes")