public void EnterPseudoScope(ast.Node n)
{
SymbolScope currentScope = m_PseudoScopes.Peek();
n.PseudoScope = new SymbolScope(currentScope.Compiler, n, Accessibility.Private);
currentScope.InnerScopes.Add(n.PseudoScope);
n.PseudoScope.OuterScope = currentScope;
m_PseudoScopes.Push(n.PseudoScope);
}
public void OnLeaveNode(Node n)
{
}
public bool OnEnterNode(Node n)
{
var cb = n as CodeBlock;
if (cb != null)
TrailingCodeBlock = cb;
return false; // Don't recurve
}
public bool OnEnterNode(ast.Node n)
{
// New actual scope (function body or catch clause)
if (n.GetType() == typeof(ast.ExprNodeFunction) || n.GetType() == typeof(ast.CatchClause))
{
SymbolScope currentScope = m_Scopes.Peek();
n.Scope = new SymbolScope(currentScope.Compiler, n, Accessibility.Private);
// Add this function to the parent function's list of nested functions
currentScope.InnerScopes.Add(n.Scope);
n.Scope.OuterScope = currentScope;
// Enter scope
m_Scopes.Push(n.Scope);
// Also create a pseudo scope
EnterPseudoScope(n);
return(true);
}
// New pseudo scope (statement body or braced code block)
if (n.GetType() == typeof(ast.CodeBlock) || n.GetType() == typeof(ast.StatementBlock) || n.GetType() == typeof(ast.StatementFor) || n.GetType() == typeof(ast.StatementForIn))
{
// Create pseudo scope
EnterPseudoScope(n);
return(true);
}
// Is it an evil?
if (n.GetType() == typeof(ast.StatementWith))
{
m_Scopes.Peek().Compiler.RecordWarning(n.Bookmark, "use of `with` statement prevents local symbol obfuscation of all containing scopes");
m_Scopes.Peek().DefaultAccessibility = Accessibility.Public;
return(true);
}
// More evil
if (n.GetType() == typeof(ast.ExprNodeIdentifier))
{
var m = (ast.ExprNodeIdentifier)n;
if (m.Lhs == null && m.Name == "eval")
{
m_Scopes.Peek().Compiler.RecordWarning(n.Bookmark, "use of `eval` prevents local symbol obfuscation of all containing scopes");
m_Scopes.Peek().DefaultAccessibility = Accessibility.Public;
}
return(true);
}
// Private member declaration?
if (n.GetType() == typeof(ast.StatementAccessibility))
{
var p = (ast.StatementAccessibility)n;
foreach (var s in p.Specs)
{
m_Scopes.Peek().AddAccessibilitySpec(p.Bookmark, s);
}
}
// Try to guess name of function by assignment in variable declaration
var decl = n as ast.StatementVariableDeclaration;
if (decl != null)
{
foreach (var i in decl.Variables)
{
if (i.InitialValue != null)
{
var fn = i.InitialValue.RootNode as ast.ExprNodeFunction;
if (fn != null)
{
fn.AssignedToName = i.Name;
}
}
}
}
// Try to guess name of function by assignment
var assignment = n as ast.ExprNodeAssignment;
if (assignment != null)
{
var fn = assignment.Rhs as ast.ExprNodeFunction;
if (fn != null)
{
var id = assignment.Lhs as ast.ExprNodeIdentifier;
if (id != null)
{
fn.AssignedToName = id.Name;
}
}
}
// Try to guess name of function in object literal
var objLiteral = n as ast.ExprNodeObjectLiteral;
if (objLiteral != null)
{
foreach (var i in objLiteral.Values)
{
var fn = i.Value as ast.ExprNodeFunction;
if (fn != null)
{
var id = i.Key as ast.ExprNodeIdentifier;
if (id != null)
{
fn.AssignedToName = id.Name;
}
}
}
}
return(true);
}
// Constructor
public SymbolScope(Compiler Compiler, ast.Node node, Accessibility defaultAccessibility)
{
m_Compiler = Compiler;
Node = node;
DefaultAccessibility = defaultAccessibility;
}
// Constructor
public SymbolScope(Compiler Compiler, ast.Node node, Accessibility defaultAccessibility)
{
m_Compiler = Compiler;
Node = node;
DefaultAccessibility = defaultAccessibility;
}