made a little optimization for try-catch syntax.

1 files changed, 15 insertions, 1 deletions

diff --git a/src/yuescript/yue_compiler.cpp b/src/yuescript/yue_compiler.cpp
index 4d8ed86..ed5e849 100644
--- a/src/yuescript/yue_compiler.cpp
+++ b/src/yuescript/yue_compiler.cpp
@@ -72,7 +72,7 @@ static std::unordered_set<std::string> Metamethods = {
         "close"s // Lua 5.4
 };
 
-const std::string_view version = "0.17.12"sv;
+const std::string_view version = "0.17.13"sv;
 const std::string_view extension = "yue"sv;
 
 class CompileError : public std::logic_error {
@@ -7952,6 +7952,20 @@ private:
                         funLit->body.set(body);
                 }
                 if (auto tryBlock = tryNode->func.as<Block_t>()) {
+                        BLOCK_START
+                        BREAK_IF(tryBlock->statements.size() != 1);
+                        auto stmt = static_cast<Statement_t*>(tryBlock->statements.front());
+                        auto expListAssign = stmt->content.as<ExpListAssign_t>();
+                        BREAK_IF(expListAssign->action);
+                        auto value = singleValueFrom(expListAssign->expList);
+                        BREAK_IF(!value);
+                        auto chainValue = value->item.as<ChainValue_t>();
+                        BREAK_IF(!chainValue);
+                        BREAK_IF(!isChainValueCall(chainValue));
+                        tryNode->func.set(expListAssign->expList->exprs.front());
+                        BLOCK_END
+                }
+                if (auto tryBlock = tryNode->func.as<Block_t>()) {
                         auto tryExp = toAst<Exp_t>("->"sv, x);
                         auto funLit = simpleSingleValueFrom(tryExp)->value.to<FunLit_t>();
                         auto body = x->new_ptr<Body_t>();