public override Node VisitIf(DeltinScriptParser.IfContext context)
{
// Get the if data
IfData ifData = new IfData
(
VisitExpr(context.expr()),
(BlockNode)VisitBlock(context.block())
);
// Get the else-if data
IfData[] elseIfData = null;
if (context.else_if() != null)
{
elseIfData = new IfData[context.else_if().Length];
for (int i = 0; i < context.else_if().Length; i++)
{
elseIfData[i] = new IfData
(
VisitExpr(context.else_if()[i].expr()),
(BlockNode)VisitBlock(context.else_if()[i].block())
);
}
}
// Get the else block
BlockNode elseBlock = null;
if (context.@else() != null)
{
elseBlock = (BlockNode)VisitBlock(context.@else().block());
}
return(new IfNode(ifData, elseIfData, elseBlock, new Location(file, Range.GetRange(context))));
}
public IfAction(ParseInfo parseInfo, Scope scope, DeltinScriptParser.IfContext ifContext)
{
if (ifContext.expr() == null)
{
parseInfo.Script.Diagnostics.Error("Expected expression.", DocRange.GetRange(ifContext.LEFT_PAREN()));
}
else
{
Expression = DeltinScript.GetExpression(parseInfo, scope, ifContext.expr());
}
var paths = new List <PathInfo>();
if (ifContext.block() == null)
{
parseInfo.Script.Diagnostics.Error("Expected block.", DocRange.GetRange(ifContext.IF()));
}
else
{
Block = new BlockAction(parseInfo, scope, ifContext.block());
}
paths.Add(new PathInfo(Block, DocRange.GetRange(ifContext.IF()), false));
if (ifContext.else_if() != null)
{
ElseIfs = new ElseIf[ifContext.else_if().Length];
for (int i = 0; i < ElseIfs.Length; i++)
{
ElseIfs[i] = new ElseIf(parseInfo, scope, ifContext.else_if(i));
paths.Add(new PathInfo(Block, DocRange.GetRange(ifContext.else_if(i).ELSE(), ifContext.else_if(i).IF()), false));
}
}
else
{
ElseIfs = new ElseIf[0];
}
// If there is an else statement, get the else block.
if (ifContext.@else() != null)
{
if (ifContext.block() == null)
{
parseInfo.Script.Diagnostics.Error("Expected block.", DocRange.GetRange(ifContext.@else().block()));
}
else
{
ElseBlock = new BlockAction(parseInfo, scope, ifContext.@else().block());
}
// Add the else path info.
paths.Add(new PathInfo(ElseBlock, DocRange.GetRange(ifContext.@else().ELSE()), true));
}
Paths = paths.ToArray();
}
public IfNode(DeltinScriptParser.IfContext context, BuildAstVisitor visitor) : base(new Location(visitor.file, DocRange.GetRange(context)))
{
// Get the if data
IfData = new IfData
(
visitor.VisitExpr(context.expr()),
(BlockNode)visitor.VisitBlock(context.block())
);
paths.Add(new PathInfo(IfData.Block, new Location(visitor.file, DocRange.GetRange(context.IF())), false));
// Get the else-if data
ElseIfData = null;
if (context.else_if() != null)
{
ElseIfData = new IfData[context.else_if().Length];
for (int i = 0; i < context.else_if().Length; i++)
{
ElseIfData[i] = new IfData
(
visitor.VisitExpr(context.else_if(i).expr()),
(BlockNode)visitor.VisitBlock(context.else_if(i).block())
);
paths.Add(
new PathInfo(
ElseIfData[i].Block,
new Location(
visitor.file,
DocRange.GetRange(
context.else_if(i).ELSE(),
context.else_if(i).IF()
)
),
false
)
);
}
}
// Get the else block
ElseBlock = null;
if (context.@else() != null)
{
ElseBlock = (BlockNode)visitor.VisitBlock(context.@else().block());
paths.Add(new PathInfo(ElseBlock, new Location(visitor.file, DocRange.GetRange(context.@else().ELSE())), true));
}
}
public IfAction(ParseInfo parseInfo, Scope scope, DeltinScriptParser.IfContext ifContext)
{
// Get the if condition.
if (ifContext.expr() != null)
{
Expression = parseInfo.GetExpression(scope, ifContext.expr());
}
else
{
parseInfo.Script.Diagnostics.Error("Expected expression.", DocRange.GetRange(ifContext.LEFT_PAREN()));
}
// Contains the path info of all blocks in the if/else-if/else list.
var paths = new List <PathInfo>();
// Get the if's block.
if (ifContext.block() != null)
{
Block = new BlockAction(parseInfo, scope, ifContext.block());
}
else
{
parseInfo.Script.Diagnostics.Error("Expected block.", DocRange.GetRange(ifContext.IF()));
}
// Add the if block path info.
paths.Add(new PathInfo(Block, DocRange.GetRange(ifContext.IF()), false));
// Get the else-ifs.
if (ifContext.else_if() != null)
{
ElseIfs = new ElseIf[ifContext.else_if().Length];
for (int i = 0; i < ElseIfs.Length; i++)
{
ElseIfs[i] = new ElseIf(parseInfo, scope, ifContext.else_if(i));
paths.Add(new PathInfo(Block, DocRange.GetRange(ifContext.else_if(i).ELSE(), ifContext.else_if(i).IF()), false));
}
}
// If there is none, set `ElseIfs` to an empty array since it should not be null.
else
{
ElseIfs = new ElseIf[0];
}
// If there is an else statement, get the else block.
if (ifContext.@else() != null)
{
if (ifContext.block() == null)
{
parseInfo.Script.Diagnostics.Error("Expected block.", DocRange.GetRange(ifContext.@else().block()));
}
else
{
ElseBlock = new BlockAction(parseInfo, scope, ifContext.@else().block());
}
// Add the else path info.
paths.Add(new PathInfo(ElseBlock, DocRange.GetRange(ifContext.@else().ELSE()), true));
}
Paths = paths.ToArray();
}
public override Node VisitIf(DeltinScriptParser.IfContext context)
{
return(new IfNode(context, this));
}
