Allow assembly stack to translate its source.

libyul/AssemblyStack.cpp

@@ -34,6 +34,7 @@
 #include <libyul/backends/evm/EVMMetrics.h>
 #include <libyul/backends/wasm/WasmDialect.h>
 #include <libyul/backends/wasm/EWasmObjectCompiler.h>
+#include <libyul/backends/wasm/EVMToEWasmTranslator.h>
 #include <libyul/optimiser/Metrics.h>
 #include <libyul/ObjectParser.h>
 #include <libyul/optimiser/Suite.h>
@@ -102,6 +103,23 @@ void AssemblyStack::optimize()
 	solAssert(analyzeParsed(), "Invalid source code after optimization.");
 }
 
+void AssemblyStack::translate(AssemblyStack::Language _targetLanguage)
+{
+	if (m_language == _targetLanguage)
+		return;
+
+	solAssert(
+		m_language == Language::StrictAssembly && _targetLanguage == Language::EWasm,
+		"Invalid language combination"
+	);
+
+	*m_parserResult = EVMToEWasmTranslator(
+		languageToDialect(m_language, m_evmVersion)
+	).run(*parserResult());
+
+	m_language = _targetLanguage;
+}
+
 bool AssemblyStack::analyzeParsed()
 {
 	solAssert(m_parserResult, "");

libyul/AssemblyStack.h

@@ -81,6 +81,9 @@ public:
 	/// If the settings (see constructor) disabled the optimizer, nothing is done here.
 	void optimize();
 
+	/// Translate the source to a different language / dialect.
+	void translate(Language _targetLanguage);
+
 	/// Run the assembly step (should only be called after parseAndAnalyze).
 	MachineAssemblyObject assemble(Machine _machine) const;