Extract scopes into compiler stack.

libsolidity/analysis/NameAndTypeResolver.cpp

@@ -34,8 +34,10 @@ namespace solidity
 
 NameAndTypeResolver::NameAndTypeResolver(
 	vector<Declaration const*> const& _globals,
+	map<ASTNode const*, shared_ptr<DeclarationContainer>>& _scopes,
 	ErrorList& _errors
 ) :
+	m_scopes(_scopes),
 	m_errors(_errors)
 {
 	if (!m_scopes[nullptr])

libsolidity/analysis/NameAndTypeResolver.h

@@ -42,7 +42,11 @@ namespace solidity
 class NameAndTypeResolver: private boost::noncopyable
 {
 public:
-	NameAndTypeResolver(std::vector<Declaration const*> const& _globals, ErrorList& _errors);
+	NameAndTypeResolver(
+		std::vector<Declaration const*> const& _globals,
+		std::map<ASTNode const*, std::shared_ptr<DeclarationContainer>>& _scopes,
+		ErrorList& _errors
+	);
 	/// Registers all declarations found in the AST node, usually a source unit.
 	/// @returns false in case of error.
 	bool registerDeclarations(ASTNode& _sourceUnit);
@@ -113,7 +117,7 @@ private:
 	/// where nullptr denotes the global scope. Note that structs are not scope since they do
 	/// not contain code.
 	/// Aliases (for example `import "x" as y;`) create multiple pointers to the same scope.
-	std::map<ASTNode const*, std::shared_ptr<DeclarationContainer>> m_scopes;
+	std::map<ASTNode const*, std::shared_ptr<DeclarationContainer>>& m_scopes;
 
 	DeclarationContainer* m_currentScope = nullptr;
 	ErrorList& m_errors;

libsolidity/interface/CompilerStack.cpp

@@ -88,6 +88,7 @@ void CompilerStack::reset(bool _keepSources)
 	m_optimize = false;
 	m_optimizeRuns = 200;
 	m_globalContext.reset();
+	m_scopes.clear();
 	m_sourceOrder.clear();
 	m_contracts.clear();
 	m_errors.clear();
@@ -165,7 +166,7 @@ bool CompilerStack::parse()
 			noErrors = false;
 
 	m_globalContext = make_shared<GlobalContext>();
-	NameAndTypeResolver resolver(m_globalContext->declarations(), m_errors);
+	NameAndTypeResolver resolver(m_globalContext->declarations(), m_scopes, m_errors);
 	for (Source const* source: m_sourceOrder)
 		if (!resolver.registerDeclarations(*source->ast))
 			return false;

libsolidity/interface/CompilerStack.h

@@ -52,6 +52,7 @@ namespace solidity
 
 // forward declarations
 class Scanner;
+class ASTNode;
 class ContractDefinition;
 class FunctionDefinition;
 class SourceUnit;
@@ -59,6 +60,7 @@ class Compiler;
 class GlobalContext;
 class InterfaceHandler;
 class Error;
+class DeclarationContainer;
 
 enum class DocumentationType: uint8_t
 {
@@ -271,6 +273,7 @@ private:
 	bool m_parseSuccessful;
 	std::map<std::string const, Source> m_sources;
 	std::shared_ptr<GlobalContext> m_globalContext;
+	std::map<ASTNode const*, std::shared_ptr<DeclarationContainer>> m_scopes;
 	std::vector<Source const*> m_sourceOrder;
 	std::map<std::string const, Contract> m_contracts;
 	std::string m_formalTranslation;