protected ActivationObject(Statement node, ActivationObject parent, ErrorSink errorSink) {
_node = node;
m_useStrict = false;
Parent = parent;
NameTable = new Dictionary<string, JSVariableField>();
ChildScopes = new List<ActivationObject>();
// if our parent is a scope....
if (parent != null) {
// add us to the parent's list of child scopes
parent.ChildScopes.Add(this);
// if the parent is strict, so are we
UseStrict = parent.UseStrict;
}
// create the two lists of declared items for this scope
ScopeLookups = new HashSet<Lookup>();
VarDeclaredNames = new HashSet<INameDeclaration>();
LexicallyDeclaredNames = new HashSet<INameDeclaration>();
GhostedCatchParameters = new HashSet<ParameterDeclaration>();
GhostedFunctions = new HashSet<FunctionObject>();
_errorSink = errorSink;
}
private ResolutionVisitor(ActivationObject rootScope, LocationResolver indexResolver, ErrorSink errorSink) {
// create the lexical and variable scope stacks and push the root scope onto them
m_lexicalStack = new Stack<ActivationObject>();
m_lexicalStack.Push(rootScope);
m_variableStack = new Stack<ActivationObject>();
m_variableStack.Push(rootScope);
_locationResolver = indexResolver;
_errorSink = errorSink;
}
internal FunctionScope(Statement node, ActivationObject parent, bool isExpression, FunctionObject funcObj, ErrorSink errorSink)
: base(node, parent, errorSink)
{
m_refScopes = new HashSet<ActivationObject>();
if (isExpression)
{
// parent scopes automatically reference enclosed function expressions
AddReference(Parent);
}
FunctionObject = funcObj;
}
internal GlobalScope(JsAst node, ErrorSink errorSink)
: base(node, null, errorSink)
{
// define the Global object's properties, and methods
m_globalProperties = new HashSet<string>(new[] {
"Infinity", "NaN", "undefined", "window", "Image", "JSON", "Math", "XMLHttpRequest", "DOMParser",
"applicationCache", "clientInformation", "clipboardData", "closed", "console", "document", "event", "external", "frameElement", "frames", "history", "length", "localStorage", "location", "name", "navigator", "opener", "parent", "screen", "self", "sessionStorage", "status", "top"});
m_globalFunctions = new HashSet<string>(new[] {
"decodeURI", "decodeURIComponent", "encodeURI", "encodeURIComponent", "escape", "eval", "importScripts", "isNaN", "isFinite", "parseFloat", "parseInt", "unescape", "ActiveXObject", "Array", "Boolean", "Date", "Error", "EvalError", "EventSource", "File", "FileList", "FileReader", "Function", "GeckoActiveXObject", "HTMLElement", "Number", "Object", "Proxy", "RangeError", "ReferenceError", "RegExp", "SharedWorker", "String", "SyntaxError", "TypeError", "URIError", "WebSocket", "Worker",
"addEventListener", "alert", "attachEvent", "blur", "clearInterval", "clearTimeout", "close", "confirm", "createPopup", "detachEvent", "dispatchEvent", "execScript", "focus", "getComputedStyle", "getSelection", "moveBy", "moveTo", "navigate", "open", "postMessage", "prompt", "removeEventListener", "resizeBy", "resizeTo", "scroll", "scrollBy", "scrollTo", "setActive", "setInterval", "setTimeout", "showModalDialog", "showModelessDialog" });
}
public static void Apply(Node node, ActivationObject scope, LocationResolver indexResolver, ErrorSink errorSink)
{
if (node != null && scope != null)
{
// create the visitor and run it. This will create all the child
// scopes and populate all the scopes with the var-decl, lex-decl,
// and lookup references within them.
var visitor = new ResolutionVisitor(scope, indexResolver, errorSink);
node.Walk(visitor);
// now that all the scopes are created and they all know what decls
// they contains, create all the fields
visitor.CreateFields(scope);
// now that all the fields have been created in all the scopes,
// let's go through and resolve all the references
visitor.ResolveLookups(scope);
// now that everything is declared and resolved as per the language specs,
// we need to go back and add ghosted fields for older versions of IE that
// incorrectly implement catch-variables and named function expressions.
visitor.AddGhostedFields(scope);
}
}
internal CatchScope(Statement node, ActivationObject parent, ParameterDeclaration catchParameter, ErrorSink errorSink)
: base(node, parent, errorSink)
{
CatchParameter = catchParameter;
}
public BlockScope(Statement node, ActivationObject parent, ErrorSink errorSink)
: base(node, parent, errorSink)
{
}
public BlockScope(Statement node, ActivationObject parent, ErrorSink errorSink)
: base(node, parent, errorSink)
{
}
private JSParser CreateParser(TextReader content, ErrorSink sink) {
// TODO: JSParser should accept a TextReader
return new JSParser(content.ReadToEnd(), sink);
}
public static void Apply(Node node, ActivationObject scope, LocationResolver indexResolver, ErrorSink errorSink)
{
if (node != null && scope != null)
{
// create the visitor and run it. This will create all the child
// scopes and populate all the scopes with the var-decl, lex-decl,
// and lookup references within them.
var visitor = new ResolutionVisitor(scope, indexResolver, errorSink);
node.Walk(visitor);
// now that all the scopes are created and they all know what decls
// they contains, create all the fields
visitor.CreateFields(scope);
// now that all the fields have been created in all the scopes,
// let's go through and resolve all the references
visitor.ResolveLookups(scope);
// now that everything is declared and resolved as per the language specs,
// we need to go back and add ghosted fields for older versions of IE that
// incorrectly implement catch-variables and named function expressions.
visitor.AddGhostedFields(scope);
}
}
private ResolutionVisitor(ActivationObject rootScope, LocationResolver indexResolver, ErrorSink errorSink)
{
// create the lexical and variable scope stacks and push the root scope onto them
m_lexicalStack = new Stack <ActivationObject>();
m_lexicalStack.Push(rootScope);
m_variableStack = new Stack <ActivationObject>();
m_variableStack.Push(rootScope);
_locationResolver = indexResolver;
_errorSink = errorSink;
}
internal FunctionScope(Statement node, ActivationObject parent, bool isExpression, FunctionObject funcObj, ErrorSink errorSink)
: base(node, parent, errorSink)
{
m_refScopes = new HashSet <ActivationObject>();
if (isExpression)
{
// parent scopes automatically reference enclosed function expressions
AddReference(Parent);
}
FunctionObject = funcObj;
}
internal CatchScope(Statement node, ActivationObject parent, ParameterDeclaration catchParameter, ErrorSink errorSink)
: base(node, parent, errorSink)
{
CatchParameter = catchParameter;
}
public WithScope(Statement node, ActivationObject parent, ErrorSink errorSink)
: base(node, parent, errorSink)
{
IsInWithScope = true;
}
public WithScope(Statement node, ActivationObject parent, ErrorSink errorSink)
: base(node, parent, errorSink)
{
IsInWithScope = true;
}