added error jump instead of STOP instraction in case of exception

1 files changed, 4 insertions, 2 deletions

diff --git a/Assembly.h b/Assembly.h
index b4850f7d..4550eb6e 100644
--- a/Assembly.h
+++ b/Assembly.h
@@ -67,6 +67,8 @@ public:
 	AssemblyItem appendJumpI() { auto ret = append(newPushTag()); append(Instruction::JUMPI); return ret; }
 	AssemblyItem appendJump(AssemblyItem const& _tag) { auto ret = append(_tag.pushTag()); append(Instruction::JUMP); return ret; }
 	AssemblyItem appendJumpI(AssemblyItem const& _tag) { auto ret = append(_tag.pushTag()); append(Instruction::JUMPI); return ret; }
+	AssemblyItem errorTag() { return AssemblyItem(PushTag,  0); }
+
 	template <class T> Assembly& operator<<(T const& _d) { append(_d); return *this; }
 	AssemblyItems const& getItems() const { return m_items; }
 	AssemblyItem const& back() const { return m_items.back(); }
@@ -97,7 +99,6 @@ public:
 		const StringMap &_sourceCodes = StringMap(),
 		bool _inJsonFormat = false
 	) const;
-
 protected:
 	std::string getLocationFromSources(StringMap const& _sourceCodes, SourceLocation const& _location) const;
 	void donePath() { if (m_totalDeposit != INT_MAX && m_totalDeposit != m_deposit) BOOST_THROW_EXCEPTION(InvalidDeposit()); }
@@ -109,7 +110,8 @@ private:
 	Json::Value createJsonValue(std::string _name, int _begin, int _end, std::string _value = std::string(), std::string _jumpType = std::string()) const;
 
 protected:
-	unsigned m_usedTags = 0;
+	// 0 is reserved for exception
+	unsigned m_usedTags = 1;
 	AssemblyItems m_items;
 	mutable std::map<h256, bytes> m_data;
 	std::vector<Assembly> m_subs;