private static Expression[] MakeArray(params object[] expressions)
{
LightList <Expression> seq = new LightList <Expression>();
for (int i = 0; i < expressions.Length; i++)
{
object expression = expressions[i];
if (expression == null)
{
continue;
}
if (expression is Expression expr)
{
seq.Add(expr);
}
else if (expression is IEnumerable <Expression> exprs)
{
foreach (Expression ex in exprs)
{
seq.Add(ex);
}
}
else
{
throw new ArgumentException();
}
}
return(seq.ToArray());
}
public BlockExpression PopBlock()
{
LightList <Expression> statements = statementStacks.Pop();
Expression[] array = statements.ToArray();
LightList <Expression> .Release(ref statements);
return(Expression.Block(typeof(void), array));
}
public BlockExpression Finalize(Type type)
{
LightList <Expression> statements = statementStacks.Pop();
Expression[] array = statements.ToArray();
LightList <Expression> .Release(ref statements);
return(Expression.Block(type, variables, array));
}
private bool ParseIfStatement(ref ASTNode node)
{
if (tokenStream.Current != ExpressionTokenType.If)
{
return(false);
}
LightList <ElseIfNode> statements = LightList <ElseIfNode> .Get();
tokenStream.Advance();
ASTNode condition = null;
if (!ParseParenExpression(ref condition))
{
throw new ParseException("Expected a condition statement wrapped in parentheses but failed.");
}
BlockNode thenBlock = ParseBlock();
if (thenBlock == null)
{
throw new ParseException("Expected a block statement following an if statement but failed to parse the block");
}
if (tokenStream.Current != ExpressionTokenType.ElseIf && tokenStream.Current != ExpressionTokenType.Else)
{
node = new IfStatementNode()
{
// elseIfStatements = statements.ToArray(),
condition = condition,
thenBlock = thenBlock
};
return(true);
}
while (tokenStream.Current == ExpressionTokenType.ElseIf)
{
tokenStream.Advance();
ASTNode elseIfCondition = null;
if (!ParseParenExpression(ref elseIfCondition))
{
throw new ParseException("Expected a condition statement wrapped in parentheses but failed.");
}
BlockNode block = ParseBlock();
if (block == null)
{
throw new ParseException("Expected a block statement following an if statement but failed to parse the block");
}
statements.Add(new ElseIfNode()
{
condition = elseIfCondition,
thenBlock = block
});
}
BlockNode elseBlock = null;
if (tokenStream.Current == ExpressionTokenType.Else)
{
tokenStream.Advance();
elseBlock = ParseBlock();
if (elseBlock == null)
{
throw new ParseException("Expected a block statement following an else statement but failed to parse the block");
}
}
node = new IfStatementNode()
{
condition = condition,
thenBlock = thenBlock,
elseIfStatements = statements.size == 0 ? null : statements.ToArray(),
elseBlock = elseBlock
};
statements.Release();
return(true);
}
private UIStyleGroupContainer CompileStyleGroup(StyleRootNode styleRoot, AnimationData[] styleSheetAnimations, UISoundData[] uiSoundData)
{
UIStyleGroup defaultGroup = new UIStyleGroup();
defaultGroup.normal = UIStyleRunCommand.CreateInstance();
defaultGroup.name = styleRoot.identifier ?? styleRoot.tagName;
StyleType styleType = styleRoot.tagName != null ? StyleType.Implicit : StyleType.Shared;
scratchGroupList.size = 0;
scratchGroupList.Add(defaultGroup);
CompileStyleGroups(styleRoot, styleType, scratchGroupList, defaultGroup, styleSheetAnimations, uiSoundData);
return(new UIStyleGroupContainer(styleSheetImporter.NextStyleGroupId, defaultGroup.name, styleType, scratchGroupList.ToArray()));
}