public static void UpdateBlockPartly(this BlockStatement bs, string code, int caretOffset, CodeLocation caretLocation, out bool isInsideNonCodeSegment)
{
isInsideNonCodeSegment = false;
var finalParentMethod = bs.ParentNode as DMethod;
var finalStmtsList = bs._Statements;
var startLoc = bs.Location;
int startStmtIndex;
for (startStmtIndex = finalStmtsList.Count - 1; startStmtIndex >= 0; startStmtIndex--)
{
var n = finalStmtsList [startStmtIndex];
if (n.EndLocation.Line > 0 && n.EndLocation.Line < caretLocation.Line)
{
startLoc = --startStmtIndex == -1 ?
bs.Location : finalStmtsList [startStmtIndex].EndLocation;
break;
}
}
var startOff = startLoc.Line > 1 ? DocumentHelper.GetOffsetByRelativeLocation(code, caretLocation, caretOffset, startLoc) : 0;
if (startOff >= caretOffset)
{
return;
}
var tempParentBlock = new DMethod();
var tempBlockStmt = new BlockStatement {
ParentNode = tempParentBlock
};
try{
using (var sv = new StringView(code, startOff, caretOffset - startOff))
using (var p = DParser.Create(sv)) {
p.Lexer.SetInitialLocation(startLoc);
p.Step();
if (p.laKind == DTokens.OpenCurlyBrace)
{
p.Step();
}
while (!p.IsEOF)
{
if (p.laKind == DTokens.CloseCurlyBrace)
{
p.Step();
/*if (metaDecls.Count > 0)
* metaDecls.RemoveAt (metaDecls.Count - 1);*/
continue;
}
var stmt = p.Statement(true, true, tempParentBlock, tempBlockStmt);
if (stmt != null)
{
tempBlockStmt.Add(stmt);
}
}
tempBlockStmt.EndLocation = new CodeLocation(p.la.Column + 1, p.la.Line);
if (isInsideNonCodeSegment = p.Lexer.endedWhileBeingInNonCodeSequence)
{
return;
}
}
}catch (Exception ex) {
Console.WriteLine(ex.Message);
}
// Remove old statements from startLoc until caretLocation
int i = startStmtIndex + 1;
while (i < finalStmtsList.Count && finalStmtsList [i].Location < caretLocation)
{
finalStmtsList.RemoveAt(i);
}
// Insert new statements
if (tempBlockStmt.EndLocation > bs.EndLocation)
{
bs.EndLocation = tempBlockStmt.EndLocation;
}
foreach (var stmt in tempBlockStmt._Statements)
{
stmt.ParentNode = finalParentMethod;
stmt.Parent = bs;
}
AssignInStatementDeclarationsToNewParentNode(tempBlockStmt, finalParentMethod);
finalStmtsList.InsertRange(startStmtIndex + 1, tempBlockStmt._Statements);
if (finalParentMethod != null)
{
var finalParentChildren = finalParentMethod.AdditionalChildren;
// Remove old parent block children
int startDeclIndex;
for (startDeclIndex = finalParentChildren.Count - 1; startDeclIndex >= 0; startDeclIndex--)
{
var n = finalParentChildren [startDeclIndex];
if (n == null)
{
finalParentChildren.RemoveAt(startDeclIndex);
continue;
}
if (n.Location < startLoc)
{
break;
}
if (n.Location < caretLocation)
{
finalParentChildren.RemoveAt(startDeclIndex);
}
}
// Insert new special declarations
foreach (var decl in tempParentBlock)
{
decl.Parent = finalParentMethod;
}
finalParentChildren.InsertRange(startDeclIndex + 1, tempParentBlock);
finalParentMethod.UpdateChildrenArray();
if (bs.EndLocation > finalParentMethod.EndLocation)
{
finalParentMethod.EndLocation = bs.EndLocation;
}
}
//TODO: Handle DBlockNode parents?
}
public IBlockNode ParseIncrementally(T sr, string code, int caretOffset, CodeLocation caretLocation, out bool isInsideNonCodeSegment)
{
isInsideNonCodeSegment = false;
// Get the end location of the declaration that appears before the caret.
var startLoc = GetBlockStartLocation(sr);
int startStmtIndex;
for (startStmtIndex = ChildCount(sr) - 1; startStmtIndex >= 0; startStmtIndex--)
{
var n = ChildAt(sr, startStmtIndex);
if (n.EndLocation.Line > 0 && n.EndLocation.Line < caretLocation.Line)
{
if (startStmtIndex > 0)
{
startLoc = ChildAt(sr, --startStmtIndex).EndLocation;
}
break;
}
}
var startOff = startLoc.Line > 1 ? DocumentHelper.GetOffsetByRelativeLocation(code, caretLocation, caretOffset, startLoc) : 0;
// Immediately break to waste no time if there's nothing to parse
if (startOff >= caretOffset)
{
return(null);
}
var t = PrepareParsing(sr, startLoc);
using (var sv = new StringView(code, startOff, caretOffset - startOff))
using (var p = DParser.Create(sv))
{
p.Lexer.SetInitialLocation(startLoc);
p.Step();
if (p.laKind == DTokens.OpenCurlyBrace)
{
p.Step();
}
while (!p.IsEOF && Parse(t, p))
{
;
}
if (isInsideNonCodeSegment = p.Lexer.endedWhileBeingInNonCodeSequence)
{
return(null);
}
var block = FinishParsing(t, p);
var newLoc = new CodeLocation(caretLocation.Column + 1, caretLocation.Line);
// Update the actual tempBlock as well as methods/other blocks' end location that just appeared while parsing the code incrementally,
// so they are transparent to SearchBlockAt
var n = block;
while (n != null && (n.EndLocation.Line < 1 || n.EndLocation == p.la.Location))
{
(n as DNode).EndLocation = newLoc;
var chCount = n.Count;
if (chCount < 1)
{
break;
}
n = n.Children[chCount - 1] as IBlockNode;
}
AssignEndlocation(t, newLoc);
return(block);
}
}
public static void UpdateBlockPartly(this DBlockNode bn, string code,
int caretOffset, CodeLocation caretLocation, out bool isInsideNonCodeSegment)
{
isInsideNonCodeSegment = false;
// Get the end location of the declaration that appears before the caret.
var startLoc = bn.BlockStartLocation;
int startDeclIndex;
for (startDeclIndex = bn.Children.Count - 1; startDeclIndex >= 0; startDeclIndex--)
{
var n = bn.Children [startDeclIndex];
if (n.EndLocation.Line > 0 && n.EndLocation.Line < caretLocation.Line)
{
startLoc = --startDeclIndex == -1 ?
bn.BlockStartLocation : bn.Children [startDeclIndex].EndLocation;
break;
}
}
var startOff = startLoc.Line > 1 ? DocumentHelper.GetOffsetByRelativeLocation(code, caretLocation, caretOffset, startLoc) : 0;
// Immediately break to waste no time if there's nothing to parse
if (startOff >= caretOffset)
{
return;
}
// Get meta block stack so they can be registered while parsing
//var metaDecls = bn.GetMetaBlockStack (startLoc, true, false);
// Parse region from start until caret for maximum efficiency
var tempBlock = bn is DEnum ? new DEnum() : new DBlockNode();
try{
using (var sv = new StringView(code, startOff, caretOffset - startOff))
using (var p = DParser.Create(sv)) {
p.Lexer.SetInitialLocation(startLoc);
p.Step();
if (p.laKind == DTokens.OpenCurlyBrace)
{
p.Step();
}
// Enum bodies
if (bn is DEnum)
{
do
{
if (p.laKind == DTokens.Comma)
{
p.Step();
}
var laBackup = p.la;
p.EnumValue(tempBlock as DEnum);
if (p.la == laBackup)
{
break;
}
}while(!p.IsEOF);
}
else // Normal class/module bodies
{
if (p.laKind == DTokens.Module && bn is DModule)
{
tempBlock.Add(p.ModuleDeclaration());
}
while (!p.IsEOF)
{
//
if (p.laKind == DTokens.CloseCurlyBrace)
{
p.Step();
/*if (metaDecls.Count > 0)
* metaDecls.RemoveAt (metaDecls.Count - 1);*/
continue;
}
p.DeclDef(tempBlock);
}
}
// Update the actual tempBlock as well as methods/other blocks' end location that just appeared while parsing the code incrementally,
// so they are transparent to SearchBlockAt
var block = tempBlock as IBlockNode;
while (block != null &&
(block.EndLocation.Line < 1 || block.EndLocation == p.la.Location))
{
block.EndLocation = new CodeLocation(p.la.Column + 1, p.la.Line);
if (block.Children.Count == 0)
{
break;
}
block = block.Children[block.Count - 1] as IBlockNode;
}
if (isInsideNonCodeSegment = p.Lexer.endedWhileBeingInNonCodeSequence)
{
return;
}
}
}catch (Exception ex) {
Console.WriteLine(ex.Message);
}
// Remove old static stmts, declarations and meta blocks from bn
/*bn.MetaBlocks;*/
int startStatStmtIndex;
for (startStatStmtIndex = bn.StaticStatements.Count - 1; startStatStmtIndex >= 0; startStatStmtIndex--)
{
var ss = bn.StaticStatements [startStatStmtIndex];
if (ss.Location >= startLoc && ss.Location <= caretLocation)
{
bn.StaticStatements.RemoveAt(startStatStmtIndex);
}
else if (ss.EndLocation < startLoc)
{
break;
}
}
INode ch_;
int i = startDeclIndex + 1;
while (i < bn.Count && (ch_ = bn.Children [i]).Location < caretLocation)
{
bn.Children.Remove(ch_);
}
// Insert new static stmts, declarations and meta blocks(?) into bn
if (tempBlock.EndLocation > bn.EndLocation)
{
bn.EndLocation = tempBlock.EndLocation;
}
foreach (var n in tempBlock.Children)
{
if (n != null)
{
n.Parent = bn;
bn.Children.Insert(n, ++startDeclIndex);
}
}
bn.StaticStatements.InsertRange(startStatStmtIndex + 1, tempBlock.StaticStatements);
}
