public ParserContext(ParserContext context, bool copyNames = false)
:this(context.Nodes)
{
if (copyNames)
{
NameStack.AddRange(context.NameStack);
}
}
private void ProcessExpression(Expression exp, ParserContext context)
{
if (exp == null)
{
return;
}
if (exp is BinaryExpression)
{
var bexp = exp.As<BinaryExpression>();
ProcessExpression(bexp.Left, context);
ProcessExpression(bexp.Right, context);
return;
}
if (exp is CallExpression)
{
var invexp = exp.As<CallExpression>();
ProcessExpression(invexp.Callee, context);
foreach (var arg in invexp.Arguments)
{
var cc = new ParserContext(context, copyNames: true);
cc.NameStack.Insert(0, "?");
ProcessExpression(arg, cc);
}
return;
}
if (exp is UnaryExpression)
{
var uexp = (UnaryExpression)exp;
ProcessExpression(uexp.Argument, context);
return;
}
if (exp is IFunctionDeclaration)
{
ProcessFunctionDeclaration((IFunctionDeclaration)exp, context);
return;
}
if (exp is ObjectExpression)
{
var ojexp = (ObjectExpression)exp;
if (ojexp.Properties.Any())
{
var codeNode = new CodeNode
{
Alias = context.GetNameFromStack(),
NodeType = CodeNodeType.Object,
StartLine = exp.Location.Start.Line,
StartColumn = exp.Location.Start.Column,
EndLine = exp.Location.End.Line,
EndColumn = exp.Location.End.Column,
Comment = _comments.GetComment(exp.Location.Start.Line, exp.Location.End.Line)
};
Hierarchy<CodeNode> hi = context.Nodes.Add(codeNode);
foreach (var element in ojexp.Properties)
{
var childContext = new ParserContext(hi);
ProcessExpression((Expression)element.Key, childContext);
ProcessExpression(element.Value, childContext);
}
}
return;
}
if (exp is AssignmentExpression)
{
var qexp = (AssignmentExpression)exp;
ProcessExpression(qexp.Left, context);
ProcessExpression(qexp.Right, context);
return;
}
if (exp is Identifier)
{
var iexp = (Identifier)exp;
context.NameStack.Push(iexp.Name);
return;
}
if (exp is Literal)
{
var slexp = (Literal)exp;
context.NameStack.Push(slexp.Raw);
return;
}
if (exp is MemberExpression)
{
var mexp = exp.As<MemberExpression>();
ProcessExpression(mexp.Property, context);
ProcessExpression(mexp.Object, new ParserContext(context));
return;
}
if (exp is ArrayExpression)
{
var arexp = exp.As<ArrayExpression>();
foreach (var arelt in arexp.Elements)
{
ProcessExpression(arelt, new ParserContext(context));
}
}
if (exp is NewExpression)
{
var nexp = exp.As<NewExpression>();
foreach (var elt in nexp.Arguments)
{
ProcessExpression(elt, new ParserContext(context.Nodes));
}
}
if (exp is LogicalExpression)
{
var lexp = exp.As<LogicalExpression>();
ProcessExpression(lexp.Left, new ParserContext(context, copyNames: true));
ProcessExpression(lexp.Right, new ParserContext(context, copyNames: true));
}
return;
}
private void ProcessVariableDeclaration(
VariableDeclaration variableDeclaration,
ParserContext context)
{
foreach (var variable in variableDeclaration.Declarations)
{
if (variable.Init != null)
{
var childContext = new ParserContext(context);
ProcessExpression(variable.Id, childContext);
ProcessExpression(variable.Init, childContext);
}
}
}
private void ProcessStatements(IEnumerable<Statement> statements, ParserContext context)
{
foreach (var statement in statements)
{
ProcessStatement(statement, context);
}
}
private void ProcessStatement(Statement statement, ParserContext context)
{
context = new ParserContext(context.Nodes);
if (statement is FunctionDeclaration)
{
ProcessFunctionDeclaration(statement.As<FunctionDeclaration>(), context);
return;
}
if (statement is VariableDeclaration)
{
ProcessVariableDeclaration(statement.As<VariableDeclaration>(), context);
return;
}
if (statement is ExpressionStatement)
{
ProcessExpression(statement.As<ExpressionStatement>().Expression, context);
return;
}
if (statement is ReturnStatement)
{
ProcessExpression(statement.As<ReturnStatement>().Argument, context);
return;
}
if (statement is BlockStatement)
{
ProcessStatements(statement.As<BlockStatement>().Body, context);
}
if (statement is IfStatement)
{
ProcessExpression(statement.As<IfStatement>().Test, context);
ProcessStatement(statement.As<IfStatement>().Consequent, context);
ProcessStatement(statement.As<IfStatement>().Alternate, context);
}
if (statement is TryStatement)
{
ProcessStatement(statement.As<TryStatement>().Block, context);
ProcessStatement(statement.As<TryStatement>().Finalizer, context);
ProcessStatements(statement.As<TryStatement>().Handlers.OfType<Statement>(), context);
ProcessStatements(statement.As<TryStatement>().GuardedHandlers, context);
}
if (statement is CatchClause)
{
ProcessStatement(statement.As<CatchClause>().Body, context);
}
if (statement is SwitchStatement)
{
ProcessExpression(statement.As<SwitchStatement>().Discriminant, context);
ProcessStatements(statement.As<SwitchStatement>().Cases.SelectMany(c => c.Consequent), context);
}
}
private void ProcessFunctionDeclaration(
IFunctionDeclaration function,
ParserContext context)
{
string name;
bool isAnonymous = false;
if (function.Id != null)
{
name = function.Id.Name;
}
else
{
name = context.GetNameFromStack();
isAnonymous = name.EndsWith("?");
}
var pars = string.Join(",",
function.Parameters.Select(p => p.Name).ToArray());
pars = pars.Shortenize(_settings.MaxParametersLength);
var syntaxNode = (SyntaxNode) function;
var codeNode = new CodeNode
{
Alias = name + "(" + pars + ")",
NodeType = isAnonymous ? CodeNodeType.AnonymousFunction : CodeNodeType.Function,
StartLine = syntaxNode.Location.Start.Line,
StartColumn = syntaxNode.Location.Start.Column,
EndLine = syntaxNode.Location.End.Line,
EndColumn = syntaxNode.Location.End.Column,
Comment = _comments.GetComment(syntaxNode.Location.Start.Line, syntaxNode.Location.End.Line)
};
Hierarchy<CodeNode> hi = context.Nodes.Add(codeNode);
ProcessStatement(function.Body, new ParserContext(hi));
}
private void ProcessExpression(Expression exp, ParserContext context)
{
if (exp == null)
{
return;
}
if (exp is BinaryExpression)
{
var bexp = exp.As <BinaryExpression>();
ProcessExpression(bexp.Left, context);
ProcessExpression(bexp.Right, context);
return;
}
if (exp is CallExpression)
{
var invexp = exp.As <CallExpression>();
ProcessExpression(invexp.Callee, context);
foreach (var arg in invexp.Arguments)
{
var cc = new ParserContext(context, copyNames: true);
cc.NameStack.Insert(0, "?");
ProcessExpression(arg, cc);
}
return;
}
if (exp is UnaryExpression)
{
var uexp = (UnaryExpression)exp;
ProcessExpression(uexp.Argument, context);
return;
}
if (exp is IFunctionDeclaration)
{
ProcessFunctionDeclaration((IFunctionDeclaration)exp, context);
return;
}
if (exp is ObjectExpression)
{
var ojexp = (ObjectExpression)exp;
if (ojexp.Properties.Any())
{
var codeNode = new CodeNode
{
Alias = context.GetNameFromStack(),
NodeType = CodeNodeType.Object,
StartLine = exp.Location.Start.Line,
StartColumn = exp.Location.Start.Column,
EndLine = exp.Location.End.Line,
EndColumn = exp.Location.End.Column,
Comment = _comments.GetComment(exp.Location.Start.Line, exp.Location.End.Line)
};
Hierarchy <CodeNode> hi = context.Nodes.Add(codeNode);
foreach (var element in ojexp.Properties)
{
var childContext = new ParserContext(hi);
ProcessExpression((Expression)element.Key, childContext);
ProcessExpression(element.Value, childContext);
}
}
return;
}
if (exp is AssignmentExpression)
{
var qexp = (AssignmentExpression)exp;
ProcessExpression(qexp.Left, context);
ProcessExpression(qexp.Right, context);
return;
}
if (exp is Identifier)
{
var iexp = (Identifier)exp;
context.NameStack.Push(iexp.Name);
return;
}
if (exp is Literal)
{
var slexp = (Literal)exp;
context.NameStack.Push(slexp.Raw);
return;
}
if (exp is MemberExpression)
{
var mexp = exp.As <MemberExpression>();
ProcessExpression(mexp.Property, context);
ProcessExpression(mexp.Object, new ParserContext(context));
return;
}
if (exp is ArrayExpression)
{
var arexp = exp.As <ArrayExpression>();
foreach (var arelt in arexp.Elements)
{
ProcessExpression(arelt, new ParserContext(context));
}
}
if (exp is NewExpression)
{
var nexp = exp.As <NewExpression>();
foreach (var elt in nexp.Arguments)
{
ProcessExpression(elt, new ParserContext(context.Nodes));
}
}
if (exp is LogicalExpression)
{
var lexp = exp.As <LogicalExpression>();
ProcessExpression(lexp.Left, new ParserContext(context, copyNames: true));
ProcessExpression(lexp.Right, new ParserContext(context, copyNames: true));
}
return;
}
