internal ElaValue GetField(ElaValue index, ExecutionContext ctx)
{
if (vm != null)
{
if (index.TypeId != ElaMachine.STR)
{
ctx.InvalidType(TCF.GetShortForm(ElaTypeCode.String), index);
return(Default());
}
var field = index.DirectGetString();
var frame = vm.Assembly.GetModule(Handle);
ScopeVar sc;
if (!frame.GlobalScope.Locals.TryGetValue(field, out sc))
{
ctx.UnknownField(index.DirectGetString(), new ElaValue(this));
return(Default());
}
if ((sc.Flags & ElaVariableFlags.Private) == ElaVariableFlags.Private)
{
ctx.Fail(new ElaError(ElaRuntimeError.PrivateVariable, field));
return(Default());
}
return(vm.modules[Handle][sc.Address]);
}
ctx.Fail(ElaRuntimeError.Unknown, "VM is non present");
return(Default());
}
internal override ElaValue Concatenate(ElaValue left, ElaValue right, ExecutionContext ctx)
{
right = right.Ref.Force(right, ctx);
if (right.TypeId != ElaMachine.STR)
{
if (right.TypeId == ElaMachine.CHR)
return new ElaValue(left.DirectGetString() + right.ToString());
NoOverloadBinary(TCF.STRING, right, "concatenate", ctx);
return Default();
}
return new ElaValue(left.DirectGetString() + right.DirectGetString());
}
internal override ElaValue Concatenate(ElaValue left, ElaValue right, ExecutionContext ctx)
{
right = right.Ref.Force(right, ctx);
if (right.TypeId != ElaMachine.STR)
{
if (right.TypeId == ElaMachine.CHR)
{
return(new ElaValue(left.DirectGetString() + right.ToString()));
}
NoOverloadBinary(TCF.STRING, right, "concatenate", ctx);
return(Default());
}
return(new ElaValue(left.DirectGetString() + right.DirectGetString()));
}
internal ElaValue GetField(ElaValue key, ExecutionContext ctx)
{
if (key.TypeId != ElaMachine.STR)
{
ctx.InvalidType(TCF.GetShortForm(ElaTypeCode.String), key);
return(Default());
}
var idx = GetOrdinal(key.DirectGetString());
if (idx == -1)
{
ctx.UnknownField(key.DirectGetString(), new ElaValue(this));
return(Default());
}
return(values[idx]);
}
internal override bool GreaterEqual(ElaValue left, ElaValue right, ExecutionContext ctx)
{
if (right.TypeId != ElaMachine.STR)
{
NoOverloadBinary(TCF.STRING, right, "greaterequal", ctx);
return false;
}
return left.DirectGetString().CompareTo(right.DirectGetString()) <= 0;
}
internal override bool Equal(ElaValue left, ElaValue right, ExecutionContext ctx)
{
if (right.TypeId != ElaMachine.STR)
{
NoOverloadBinary(TCF.STRING, right, "equal", ctx);
return false;
}
return left.DirectGetString() == right.DirectGetString();
}
internal override bool LesserEqual(ElaValue left, ElaValue right, ExecutionContext ctx)
{
if (right.TypeId != ElaMachine.STR)
{
NoOverloadBinary(TCF.STRING, right, "lesserequal", ctx);
return(false);
}
return(left.DirectGetString().CompareTo(right.DirectGetString()) >= 0);
}
internal override bool NotEqual(ElaValue left, ElaValue right, ExecutionContext ctx)
{
if (right.TypeId != ElaMachine.STR)
{
NoOverloadBinary(TCF.STRING, right, "notequal", ctx);
return(false);
}
return(left.DirectGetString() != right.DirectGetString());
}
internal bool HasField(ElaValue key, ExecutionContext ctx)
{
var idx = key.I4;
if (key.TypeId != ElaMachine.STR)
{
ctx.InvalidType(TCF.GetShortForm(ElaTypeCode.String), key);
return(false);
}
return(GetOrdinal(key.DirectGetString()) != -1);
}
internal bool HasField(ElaValue index, ExecutionContext ctx)
{
if (vm != null)
{
if (index.TypeId != ElaMachine.STR)
{
ctx.InvalidType(TCF.GetShortForm(ElaTypeCode.String), index);
return(false);
}
var frame = vm.Assembly.GetModule(Handle);
return(frame.GlobalScope.Locals.ContainsKey(index.DirectGetString()));
}
ctx.Fail(ElaRuntimeError.Unknown, "VM is non present");
return(false);
}
internal override bool IsNil(ElaValue left, ExecutionContext ctx)
{
return left.DirectGetString().Length == 0;
}
internal override ElaValue Head(ElaValue left, ExecutionContext ctx)
{
return new ElaValue(left.DirectGetString()[0]);
}
internal bool HasField(ElaValue index, ExecutionContext ctx)
{
if (vm != null)
{
if (index.TypeId != ElaMachine.STR)
{
ctx.InvalidType(TCF.GetShortForm(ElaTypeCode.String), index);
return false;
}
var frame = vm.Assembly.GetModule(Handle);
return frame.GlobalScope.Locals.ContainsKey(index.DirectGetString());
}
ctx.Fail(ElaRuntimeError.Unknown, "VM is non present");
return false;
}
internal ElaValue GetField(ElaValue index, ExecutionContext ctx)
{
if (vm != null)
{
if (index.TypeId != ElaMachine.STR)
{
ctx.InvalidType(TCF.GetShortForm(ElaTypeCode.String), index);
return Default();
}
var field = index.DirectGetString();
var frame = vm.Assembly.GetModule(Handle);
ScopeVar sc;
if (!frame.GlobalScope.Locals.TryGetValue(field, out sc))
{
ctx.UnknownField(index.DirectGetString(), new ElaValue(this));
return Default();
}
if ((sc.Flags & ElaVariableFlags.Private) == ElaVariableFlags.Private)
{
ctx.Fail(new ElaError(ElaRuntimeError.PrivateVariable, field));
return Default();
}
return vm.modules[Handle][sc.Address];
}
ctx.Fail(ElaRuntimeError.Unknown, "VM is non present");
return Default();
}
internal override bool IsNil(ElaValue left, ExecutionContext ctx)
{
return(left.DirectGetString().Length == 0);
}
internal override ElaValue Head(ElaValue left, ExecutionContext ctx)
{
return(new ElaValue(left.DirectGetString()[0]));
}