public void VisitConstantFloat(DMASTConstantFloat constant)
{
Result = new Expressions.Number(constant.Location, constant.Value);
}
public void ProcessStatementSet(DMASTProcStatementSet statementSet)
{
var attribute = statementSet.Attribute.ToLower();
if (!DMExpression.TryConstant(_dmObject, _proc, statementSet.Value, out var constant))
{
throw new CompileErrorException(statementSet.Location, $"{attribute} attribute should be a constant");
}
switch (statementSet.Attribute.ToLower())
{
case "waitfor": {
_proc.WaitFor(constant.IsTruthy());
break;
}
case "opendream_unimplemented": {
if (constant.IsTruthy())
{
_proc.Attributes |= ProcAttributes.Unimplemented;
}
else
{
_proc.Attributes &= ~ProcAttributes.Unimplemented;
}
break;
}
case "hidden":
if (constant.IsTruthy())
{
_proc.Attributes |= ProcAttributes.Hidden;
}
else
{
_proc.Attributes &= ~ProcAttributes.Hidden;
}
if (!DMCompiler.Settings.SuppressUnimplementedWarnings)
{
DMCompiler.Warning(new CompilerWarning(statementSet.Location, "set hidden is not implemented"));
}
break;
case "popup_menu":
if (constant.IsTruthy()) // The default is to show it so we flag it if it's hidden
{
_proc.Attributes &= ~ProcAttributes.HidePopupMenu;
}
else
{
_proc.Attributes |= ProcAttributes.HidePopupMenu;
}
if (!DMCompiler.Settings.SuppressUnimplementedWarnings)
{
DMCompiler.Warning(new CompilerWarning(statementSet.Location, "set popup_menu is not implemented"));
}
break;
case "instant":
if (constant.IsTruthy())
{
_proc.Attributes |= ProcAttributes.Instant;
}
else
{
_proc.Attributes &= ~ProcAttributes.Instant;
}
if (!DMCompiler.Settings.SuppressUnimplementedWarnings)
{
DMCompiler.Warning(new CompilerWarning(statementSet.Location, "set instant is not implemented"));
}
break;
case "background":
if (constant.IsTruthy())
{
_proc.Attributes |= ProcAttributes.Background;
}
else
{
_proc.Attributes &= ~ProcAttributes.Background;
}
if (!DMCompiler.Settings.SuppressUnimplementedWarnings)
{
DMCompiler.Warning(new CompilerWarning(statementSet.Location, "set background is not implemented"));
}
break;
case "name":
DMASTConstantString name = statementSet.Value as DMASTConstantString;
if (name is null)
{
throw new CompileErrorException(statementSet.Location, "bad text");
}
_proc.VerbName = name.Value;
if (!DMCompiler.Settings.SuppressUnimplementedWarnings)
{
DMCompiler.Warning(new CompilerWarning(statementSet.Location, "set name is not implemented"));
}
break;
case "category":
DMASTConstantString category = statementSet.Value as DMASTConstantString;
if (category is null)
{
throw new CompileErrorException(statementSet.Location, "bad text");
}
_proc.VerbCategory = category.Value;
if (!DMCompiler.Settings.SuppressUnimplementedWarnings)
{
DMCompiler.Warning(new CompilerWarning(statementSet.Location, "set category is not implemented"));
}
break;
case "desc":
DMASTConstantString desc = statementSet.Value as DMASTConstantString;
if (desc is null)
{
throw new CompileErrorException(statementSet.Location, "bad text");
}
_proc.VerbDesc = desc.Value;
if (!DMCompiler.Settings.SuppressUnimplementedWarnings)
{
DMCompiler.Warning(new CompilerWarning(statementSet.Location, "set desc is not implemented"));
}
break;
case "invisibility":
// The ref says 0-101 for atoms and 0-100 for verbs
// BYOND doesn't clamp the actual var value but it does seem to treat out-of-range values as their extreme
DMASTConstantFloat invisFloat = statementSet.Value as DMASTConstantFloat;
if (invisFloat is null)
{
DMASTConstantInteger invisInt = statementSet.Value as DMASTConstantInteger;
if (invisInt is null)
{
throw new CompileErrorException(statementSet.Location, "bad num");
}
_proc.Invisibility = Convert.ToSByte(Math.Clamp(invisInt.Value, 0, 100));
}
else
{
_proc.Invisibility = Convert.ToSByte(Math.Clamp(Math.Floor(invisFloat.Value), 0, 100));
}
if (!DMCompiler.Settings.SuppressUnimplementedWarnings)
{
DMCompiler.Warning(new CompilerWarning(statementSet.Location, "set invisibility is not implemented"));
}
break;
case "src":
if (!DMCompiler.Settings.SuppressUnimplementedWarnings)
{
DMCompiler.Warning(new CompilerWarning(statementSet.Location, "set src is not implemented"));
}
break;
}
}
private void SimplifyExpression(ref DMASTExpression expression)
{
if (expression == null || expression is DMASTExpressionConstant || expression is DMASTCallable)
{
return;
}
#region Comparators
DMASTEqual equal = expression as DMASTEqual;
if (equal != null)
{
SimplifyExpression(ref equal.A);
SimplifyExpression(ref equal.B);
return;
}
DMASTNotEqual notEqual = expression as DMASTNotEqual;
if (notEqual != null)
{
SimplifyExpression(ref notEqual.A);
SimplifyExpression(ref notEqual.B);
return;
}
DMASTLessThan lessThan = expression as DMASTLessThan;
if (lessThan != null)
{
SimplifyExpression(ref lessThan.A);
SimplifyExpression(ref lessThan.B);
return;
}
DMASTLessThanOrEqual lessThanOrEqual = expression as DMASTLessThanOrEqual;
if (lessThanOrEqual != null)
{
SimplifyExpression(ref lessThanOrEqual.A);
SimplifyExpression(ref lessThanOrEqual.B);
return;
}
DMASTGreaterThan greaterThan = expression as DMASTGreaterThan;
if (greaterThan != null)
{
SimplifyExpression(ref greaterThan.A);
SimplifyExpression(ref greaterThan.B);
return;
}
DMASTGreaterThanOrEqual greaterThanOrEqual = expression as DMASTGreaterThanOrEqual;
if (greaterThanOrEqual != null)
{
SimplifyExpression(ref greaterThanOrEqual.A);
SimplifyExpression(ref greaterThanOrEqual.B);
return;
}
#endregion Comparators
#region Math
DMASTNegate negate = expression as DMASTNegate;
if (negate != null)
{
SimplifyExpression(ref negate.Expression);
if (negate.Expression is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger exprInteger = negate.Expression as DMASTConstantInteger;
DMASTConstantFloat exprFloat = negate.Expression as DMASTConstantFloat;
if (exprInteger != null)
{
expression = new DMASTConstantInteger(-exprInteger.Value);
}
else if (exprFloat != null)
{
expression = new DMASTConstantFloat(-exprFloat.Value);
}
return;
}
DMASTNot not = expression as DMASTNot;
if (not != null)
{
SimplifyExpression(ref not.Expression);
if (not.Expression is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger exprInteger = not.Expression as DMASTConstantInteger;
DMASTConstantFloat exprFloat = not.Expression as DMASTConstantFloat;
if (exprInteger != null)
{
expression = new DMASTConstantInteger((exprInteger.Value != 0) ? 1 : 0);
}
else if (exprFloat != null)
{
expression = new DMASTConstantFloat((exprFloat.Value != 0) ? 1 : 0);
}
return;
}
DMASTOr or = expression as DMASTOr;
if (or != null)
{
SimplifyExpression(ref or.A);
SimplifyExpression(ref or.B);
if (or.A is not DMASTExpressionConstant || or.B is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger aInteger = or.A as DMASTConstantInteger;
DMASTConstantInteger bInteger = or.B as DMASTConstantInteger;
if (aInteger != null && bInteger != null)
{
expression = new DMASTConstantInteger(((aInteger.Value != 0) || (bInteger.Value != 0)) ? 1 : 0);
}
return;
}
DMASTAnd and = expression as DMASTAnd;
if (and != null)
{
SimplifyExpression(ref and.A);
SimplifyExpression(ref and.B);
if (and.A is not DMASTExpressionConstant || and.B is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger aInteger = and.A as DMASTConstantInteger;
DMASTConstantInteger bInteger = and.B as DMASTConstantInteger;
if (aInteger != null && bInteger != null)
{
expression = new DMASTConstantInteger(((aInteger.Value != 0) && (bInteger.Value != 0)) ? 1 : 0);
}
return;
}
DMASTLeftShift leftShift = expression as DMASTLeftShift;
if (leftShift != null)
{
SimplifyExpression(ref leftShift.A);
SimplifyExpression(ref leftShift.B);
if (leftShift.A is not DMASTExpressionConstant || leftShift.B is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger aInteger = leftShift.A as DMASTConstantInteger;
DMASTConstantInteger bInteger = leftShift.B as DMASTConstantInteger;
if (aInteger != null && bInteger != null)
{
expression = new DMASTConstantInteger(aInteger.Value << bInteger.Value);
}
return;
}
DMASTRightShift rightShift = expression as DMASTRightShift;
if (rightShift != null)
{
SimplifyExpression(ref rightShift.A);
SimplifyExpression(ref rightShift.B);
if (rightShift.A is not DMASTExpressionConstant || rightShift.B is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger aInteger = rightShift.A as DMASTConstantInteger;
DMASTConstantInteger bInteger = rightShift.B as DMASTConstantInteger;
if (aInteger != null && bInteger != null)
{
expression = new DMASTConstantInteger(aInteger.Value >> bInteger.Value);
}
return;
}
DMASTBinaryAnd binaryAnd = expression as DMASTBinaryAnd;
if (binaryAnd != null)
{
SimplifyExpression(ref binaryAnd.A);
SimplifyExpression(ref binaryAnd.B);
if (binaryAnd.A is not DMASTExpressionConstant || binaryAnd.B is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger aInteger = binaryAnd.A as DMASTConstantInteger;
DMASTConstantInteger bInteger = binaryAnd.B as DMASTConstantInteger;
if (aInteger != null && bInteger != null)
{
expression = new DMASTConstantInteger(aInteger.Value & bInteger.Value);
}
return;
}
DMASTBinaryOr binaryOr = expression as DMASTBinaryOr;
if (binaryOr != null)
{
SimplifyExpression(ref binaryOr.A);
SimplifyExpression(ref binaryOr.B);
if (binaryOr.A is not DMASTExpressionConstant || binaryOr.B is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger aInteger = binaryOr.A as DMASTConstantInteger;
DMASTConstantInteger bInteger = binaryOr.B as DMASTConstantInteger;
if (aInteger != null && bInteger != null)
{
expression = new DMASTConstantInteger(aInteger.Value | bInteger.Value);
}
return;
}
DMASTBinaryNot binaryNot = expression as DMASTBinaryNot;
if (binaryNot != null)
{
SimplifyExpression(ref binaryNot.Value);
if (binaryNot.Value is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger valueInteger = binaryNot.Value as DMASTConstantInteger;
if (valueInteger != null)
{
expression = new DMASTConstantInteger((~valueInteger.Value) & 0xFFFFFF);
}
return;
}
DMASTAdd add = expression as DMASTAdd;
if (add != null)
{
SimplifyExpression(ref add.A);
SimplifyExpression(ref add.B);
if (add.A is not DMASTExpressionConstant || add.B is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger aInteger = add.A as DMASTConstantInteger;
DMASTConstantFloat aFloat = add.A as DMASTConstantFloat;
DMASTConstantString aString = add.A as DMASTConstantString;
DMASTConstantInteger bInteger = add.B as DMASTConstantInteger;
DMASTConstantFloat bFloat = add.B as DMASTConstantFloat;
DMASTConstantString bString = add.B as DMASTConstantString;
if (aInteger != null && bInteger != null)
{
expression = new DMASTConstantInteger(aInteger.Value + bInteger.Value);
}
else if (aInteger != null && bFloat != null)
{
expression = new DMASTConstantFloat(aInteger.Value + bFloat.Value);
}
else if (aFloat != null && bInteger != null)
{
expression = new DMASTConstantFloat(aFloat.Value + bInteger.Value);
}
else if (aString != null && bString != null)
{
expression = new DMASTConstantString(aString.Value + bString.Value);
}
return;
}
DMASTSubtract subtract = expression as DMASTSubtract;
if (subtract != null)
{
SimplifyExpression(ref subtract.A);
SimplifyExpression(ref subtract.B);
if (subtract.A is not DMASTExpressionConstant || subtract.B is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger aInteger = subtract.A as DMASTConstantInteger;
DMASTConstantInteger bInteger = subtract.B as DMASTConstantInteger;
if (aInteger != null && bInteger != null)
{
expression = new DMASTConstantInteger(aInteger.Value - bInteger.Value);
}
return;
}
DMASTMultiply multiply = expression as DMASTMultiply;
if (multiply != null)
{
SimplifyExpression(ref multiply.A);
SimplifyExpression(ref multiply.B);
if (multiply.A is not DMASTExpressionConstant || multiply.B is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger aInteger = multiply.A as DMASTConstantInteger;
DMASTConstantFloat aFloat = multiply.A as DMASTConstantFloat;
DMASTConstantInteger bInteger = multiply.B as DMASTConstantInteger;
DMASTConstantFloat bFloat = multiply.B as DMASTConstantFloat;
if (aInteger != null && bInteger != null)
{
expression = new DMASTConstantInteger(aInteger.Value * bInteger.Value);
}
else if (aInteger != null && bFloat != null)
{
expression = new DMASTConstantFloat(aInteger.Value * bFloat.Value);
}
else if (aFloat != null && bInteger != null)
{
expression = new DMASTConstantFloat(aFloat.Value * bInteger.Value);
}
else if (aFloat != null && bFloat != null)
{
expression = new DMASTConstantFloat(aFloat.Value * bFloat.Value);
}
return;
}
DMASTDivide divide = expression as DMASTDivide;
if (divide != null)
{
SimplifyExpression(ref divide.A);
SimplifyExpression(ref divide.B);
if (divide.A is not DMASTExpressionConstant || divide.B is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger aInteger = divide.A as DMASTConstantInteger;
DMASTConstantFloat aFloat = divide.A as DMASTConstantFloat;
DMASTConstantInteger bInteger = divide.B as DMASTConstantInteger;
DMASTConstantFloat bFloat = divide.B as DMASTConstantFloat;
if (aInteger != null && bInteger != null)
{
if (aInteger.Value % bInteger.Value == 0)
{
expression = new DMASTConstantFloat(aInteger.Value / bInteger.Value);
}
else
{
expression = new DMASTConstantFloat((float)aInteger.Value / (float)bInteger.Value);
}
}
else if (aFloat != null && bInteger != null)
{
expression = new DMASTConstantFloat(aFloat.Value / bInteger.Value);
}
else if (aFloat != null && bFloat != null)
{
expression = new DMASTConstantFloat(aFloat.Value / bFloat.Value);
}
return;
}
DMASTModulus modulus = expression as DMASTModulus;
if (modulus != null)
{
SimplifyExpression(ref modulus.A);
SimplifyExpression(ref modulus.B);
if (modulus.A is not DMASTExpressionConstant || modulus.B is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger aInteger = modulus.A as DMASTConstantInteger;
DMASTConstantInteger bInteger = modulus.B as DMASTConstantInteger;
if (aInteger != null && bInteger != null)
{
expression = new DMASTConstantInteger(aInteger.Value % bInteger.Value);
}
return;
}
DMASTPower power = expression as DMASTPower;
if (modulus != null)
{
SimplifyExpression(ref modulus.A);
SimplifyExpression(ref modulus.B);
if (modulus.A is not DMASTExpressionConstant || modulus.B is not DMASTExpressionConstant)
{
return;
}
DMASTConstantInteger aInteger = modulus.A as DMASTConstantInteger;
DMASTConstantInteger bInteger = modulus.B as DMASTConstantInteger;
if (aInteger != null && bInteger != null)
{
expression = new DMASTConstantInteger((int)Math.Pow(aInteger.Value, bInteger.Value));
}
return;
}
DMASTAppend append = expression as DMASTAppend;
if (append != null)
{
SimplifyExpression(ref append.A);
SimplifyExpression(ref append.B);
return;
}
DMASTRemove remove = expression as DMASTRemove;
if (remove != null)
{
SimplifyExpression(ref remove.A);
SimplifyExpression(ref remove.B);
return;
}
DMASTCombine combine = expression as DMASTCombine;
if (combine != null)
{
SimplifyExpression(ref combine.A);
SimplifyExpression(ref combine.B);
return;
}
DMASTMask mask = expression as DMASTMask;
if (mask != null)
{
SimplifyExpression(ref mask.A);
SimplifyExpression(ref mask.B);
return;
}
#endregion Math
#region Others
DMASTList list = expression as DMASTList;
if (list != null)
{
foreach (DMASTCallParameter parameter in list.Values)
{
SimplifyExpression(ref parameter.Value);
}
return;
}
DMASTNewPath newPath = expression as DMASTNewPath;
if (newPath != null)
{
if (newPath.Parameters != null)
{
foreach (DMASTCallParameter parameter in newPath.Parameters)
{
SimplifyExpression(ref parameter.Value);
}
}
return;
}
DMASTNewIdentifier newCallable = expression as DMASTNewIdentifier;
if (newCallable != null)
{
if (newCallable.Parameters != null)
{
foreach (DMASTCallParameter parameter in newCallable.Parameters)
{
SimplifyExpression(ref parameter.Value);
}
}
return;
}
DMASTProcCall procCall = expression as DMASTProcCall;
if (procCall != null)
{
foreach (DMASTCallParameter parameter in procCall.Parameters)
{
SimplifyExpression(ref parameter.Value);
}
return;
}
DMASTAssign assign = expression as DMASTAssign;
if (assign != null)
{
SimplifyExpression(ref assign.Expression);
SimplifyExpression(ref assign.Value);
return;
}
DMASTListIndex listIndex = expression as DMASTListIndex;
if (listIndex != null)
{
SimplifyExpression(ref listIndex.Expression);
SimplifyExpression(ref listIndex.Index);
return;
}
DMASTStringFormat stringFormat = expression as DMASTStringFormat;
if (stringFormat != null)
{
for (int i = 0; i < stringFormat.InterpolatedValues.Length; i++)
{
DMASTExpression simplifiedValue = stringFormat.InterpolatedValues[i];
SimplifyExpression(ref simplifiedValue);
stringFormat.InterpolatedValues[i] = simplifiedValue;
}
return;
}
#endregion Others
}