public void VisitAttribute(DeclarationCondition declCond)
{
if (declCond.Condition != null)
{
declCond.Condition.Accept(this);
}
}
public bool IsMatching(DeclarationCondition cond, ResolutionContext ctxt)
{
if(cond is VersionCondition)
{
var vc = (VersionCondition)cond;
return vc.VersionId == null ?
vc.VersionNumber >= versionNumber :
setVersions.Contains(vc.VersionId);
}
else if(cond is DebugCondition)
{
var dc = (DebugCondition)cond;
if (dc.HasNoExplicitSpecification)
return IsDebug;
return dc.DebugId == null ?
debugLevel >= dc.DebugLevel :
setDebugVersions.Contains(dc.DebugId);
}
else if(cond is StaticIfCondition)
return IsMatching((StaticIfCondition)cond,ctxt);
else if(cond is NegatedDeclarationCondition)
{
cond = ((NegatedDeclarationCondition)cond).FirstCondition;
//TODO: Ensure that there's no double negation
if(cond is VersionCondition)
{
var vc = (VersionCondition)cond;
return vc.VersionId == null ?
vc.VersionNumber < versionNumber :
(!setVersions.Contains(vc.VersionId) || setVersions.Contains("!"+vc.VersionId));
}
else if(cond is DebugCondition)
{
var dc = (DebugCondition)cond;
if (dc.HasNoExplicitSpecification)
return !IsDebug;
return dc.DebugId == null ?
debugLevel < dc.DebugLevel :
(!setDebugVersions.Contains(dc.DebugId) || setDebugVersions.Contains("!" + dc.DebugId));
}
else if(cond is StaticIfCondition)
return !IsMatching((StaticIfCondition)cond,ctxt);
}
// True on default -- static if's etc. will be filtered later on
return true;
}
public bool IsMatching(DeclarationCondition dc, ResolutionContext ctxt)
{
if (ctxt.CancellationToken.IsCancellationRequested)
return true;
var r = true;
if(dc is NegatedDeclarationCondition)
{
var ng = (NegatedDeclarationCondition)dc;
if(ng.FirstCondition is StaticIfCondition){
if(!conditionsBeingChecked.Contains(ng.FirstCondition))
conditionsBeingChecked.Add(ng.FirstCondition);
else
return false;
r = !GlobalFlags.IsMatching((StaticIfCondition)ng.FirstCondition, ctxt);
conditionsBeingChecked.Remove(ng.FirstCondition);
}
else
r = ((GlobalFlags == null || GlobalFlags.IsMatching(dc,ctxt)) &&
(LocalFlags == null || LocalFlags.IsMatching(dc,ctxt)));
}
else {
if(dc is StaticIfCondition){
if(!conditionsBeingChecked.Contains(dc))
conditionsBeingChecked.Add(dc);
else
return false;
r = GlobalFlags.IsMatching((StaticIfCondition)dc, ctxt);
conditionsBeingChecked.Remove(dc);
}
else
r = (GlobalFlags.IsMatching(dc,ctxt) || LocalFlags.IsMatching(dc,ctxt));
}
return r;
}
public bool MatchesDeclarationEnvironment(DeclarationCondition dc)
{
return declarationCondititons.IsMatching(dc,ctxt);
}
public NegatedDeclarationCondition(DeclarationCondition dc)
{
this.FirstCondition = dc;
}
void DeclDef(DBlockNode module)
{
//AttributeSpecifier
while (IsAttributeSpecifier())
{
AttributeSpecifier();
if (t.Kind == Colon)
return;
}
if (laKind == Semicolon)
{
LastParsedObject = null;
Step();
return;
}
//ImportDeclaration
if (laKind == Import)
module.Add(ImportDeclaration());
//Constructor
else if (laKind == (This))
module.Add(Constructor(module is DClassLike ? ((DClassLike)module).ClassType == DTokens.Struct : false));
//Destructor
else if (laKind == (Tilde) && Lexer.CurrentPeekToken.Kind == (This))
module.Add(Destructor());
//Invariant
else if (laKind == (Invariant))
module.Add(_Invariant());
//UnitTest
else if (laKind == (Unittest))
{
Step();
var dbs = new DMethod(DMethod.MethodType.Unittest);
LastParsedObject = dbs;
dbs.Location = t.Location;
FunctionBody(dbs);
dbs.EndLocation = t.EndLocation;
module.Add(dbs);
}
/*
* VersionSpecification:
* version = Identifier ;
* version = IntegerLiteral ;
*
* DebugSpecification:
* debug = Identifier ;
* debug = IntegerLiteral ;
*/
else if ((laKind == Version || laKind == Debug) && Peek(1).Kind == Assign)
{
Step();
var ass = new VersionDebugSpecification
{
Token = t.Kind,
Location = t.Location
};
LastParsedObject = ass;
Step();
if (laKind == Literal)
{
Step();
ass.SpecifiedValue = new IdentifierExpression(t.LiteralValue, t.LiteralFormat)
{
Location = t.Location,
EndLocation = t.EndLocation
};
}
else if (Expect(Identifier))
ass.SpecifiedValue = new IdentifierExpression(t.LiteralValue, t.LiteralFormat)
{
Location = t.Location,
EndLocation = t.EndLocation
};
Expect(Semicolon);
ass.EndLocation = t.EndLocation;
module.Add(ass);
}
else if (laKind == Version || laKind == Debug || laKind == If)
{
Step();
var c = new DeclarationCondition(t.Kind);
LastParsedObject = c;
/*
* http://www.d-programming-language.org/version.html#VersionSpecification
* VersionCondition:
* version ( IntegerLiteral )
* version ( Identifier )
* version ( unittest )
*/
if (c.IsVersionCondition && Expect(OpenParenthesis))
{
if (laKind == Unittest)
{
Step();
c.Condition = new TokenExpression(Unittest) { Location = t.Location, EndLocation = t.EndLocation };
}
else if (laKind == Literal)
{
Step();
c.Condition = new IdentifierExpression(t.LiteralValue, t.LiteralFormat)
{
Location = t.Location,
EndLocation = t.EndLocation
};
}
else if (Expect(Identifier))
c.Condition = new IdentifierExpression(t.Value, t.LiteralFormat)
{
Location = t.Location,
EndLocation = t.EndLocation
};
if (Expect(CloseParenthesis))
TrackerVariables.ExpectingIdentifier = false;
}
/*
* DebugCondition:
* debug
* debug ( IntegerLiteral )
* debug ( Identifier )
*/
else if (c.IsDebugCondition)
{
if (laKind == OpenParenthesis)
{
Step();
if (laKind == Literal)
{
Step();
c.Condition = new IdentifierExpression(t.LiteralValue, t.LiteralFormat)
{
Location = t.Location,
EndLocation = t.EndLocation
};
}
else if (Expect(Identifier))
c.Condition = new IdentifierExpression(t.Value, t.LiteralFormat)
{
Location = t.Location,
EndLocation = t.EndLocation
};
Expect(CloseParenthesis);
}
}
/*
* StaticIfCondition:
* static if ( AssignExpression )
*/
else if (c.IsStaticIfCondition && Expect(OpenParenthesis))
{
if (DAttribute.ContainsAttribute(DeclarationAttributes, Static))
DeclarationAttributes.Clear();
else
SynErr(Static, "Conditional declaration checks must be static");
c.Condition = AssignExpression();
Expect(CloseParenthesis);
}
if (laKind == Colon)
{
Step();
PushAttribute(c, true);
return;
}
else if (laKind == OpenCurlyBrace)
{
BlockAttributes.Push(c);
ClassBody(module, true, false);
BlockAttributes.Pop();
}
else
{
DeclarationAttributes.Push(c);
DeclDef(module);
}
if (laKind == Else)
{
Step();
c = c.Clone() as DeclarationCondition;
c.Negate();
if (laKind == OpenCurlyBrace)
{
BlockAttributes.Push(c);
ClassBody(module, true, false);
BlockAttributes.Pop();
}
else
{
DeclarationAttributes.Push(c);
DeclDef(module);
}
}
}
//StaticAssert
else if (laKind == (Assert))
{
Step();
if (DAttribute.ContainsAttribute(DeclarationAttributes, Static))
{
//HACK: Assume that there's only our 'static' attribute applied to the 'if'-statement
DeclarationAttributes.Clear();
}
else
SynErr(Static, "Static assert statements must be explicitly marked as static");
if (Expect(OpenParenthesis))
{
AssignExpression();
if (laKind == (Comma))
{
Step();
AssignExpression();
}
Expect(CloseParenthesis);
}
Expect(Semicolon);
}
//TemplateMixinDeclaration
else if (laKind == Mixin)
{
if (Peek(1).Kind == Template)
module.Add(TemplateDeclaration(module));
//TemplateMixin
else if (Lexer.CurrentPeekToken.Kind == Identifier)
module.Add(TemplateMixin());
//MixinDeclaration
else if (Lexer.CurrentPeekToken.Kind == OpenParenthesis)
module.Add(MixinDeclaration());
else
{
Step();
SynErr(Identifier);
}
}
// {
else if (laKind == (OpenCurlyBrace))
{
int popCount = DeclarationAttributes.Count;
while (DeclarationAttributes.Count > 0)
BlockAttributes.Push(DeclarationAttributes.Pop());
ClassBody(module, true, false);
for (int i = popCount; i > 0; i--)
BlockAttributes.Pop();
}
// Class Allocators
// Note: Although occuring in global scope, parse it anyway but declare it as semantic nonsense;)
else if (laKind == (New))
{
Step();
var dm = new DMethod(DMethod.MethodType.Allocator) { Location=t.Location };
ApplyAttributes(dm);
dm.Parameters = Parameters(dm);
FunctionBody(dm);
dm.EndLocation = t.EndLocation;
module.Add(dm);
}
// Class Deallocators
else if (laKind == Delete)
{
Step();
var dm = new DMethod(DMethod.MethodType.Deallocator) { Location=t.Location };
dm.Name = "delete";
ApplyAttributes(dm);
dm.Parameters = Parameters(dm);
FunctionBody(dm);
dm.EndLocation = t.EndLocation;
module.Add(dm);
}
// else:
else
module.AddRange(Declaration(module));
}
public void Add(DeclarationCondition cond)
{
if(cond is VersionCondition)
{
var vc = (VersionCondition)cond;
if (vc.VersionId == null)
AddVersionCondition(vc.VersionNumber);
else
AddVersionCondition(vc.VersionId);
}
else if(cond is DebugCondition)
{
var dc = (DebugCondition)cond;
if (dc.DebugId == null)
AddDebugCondition(dc.DebugLevel);
else
AddDebugCondition(dc.DebugId);
}
else if(cond is NegatedDeclarationCondition)
{
cond = ((NegatedDeclarationCondition)cond).FirstCondition;
if (cond is VersionCondition)
{
var vc = (VersionCondition)cond;
if (vc.VersionId != null)
/*AddVersionCondition(vc.VersionNumber); -- TODO How are "negated" version numbers handled?
else*/
AddVersionCondition("!"+vc.VersionId);
}
else if (cond is DebugCondition)
{
var dc = (DebugCondition)cond;
if (dc.DebugId != null)
/*AddDebugCondition(dc.DebugLevel);
else*/
AddDebugCondition("!"+dc.DebugId);
}
}
}