public SetVariableAction(ParseInfo parseInfo, Scope scope, Assignment assignmentContext)
{
// Get the variable expression.
IExpression variableExpression = parseInfo.GetExpression(scope, assignmentContext.VariableExpression);
// Extract the variable data.
_variableResolve = new VariableResolve(parseInfo, new VariableResolveOptions()
{
ShouldBeSettable = true
}, variableExpression, assignmentContext.VariableExpression.Range);
// Get the value.
_value = parseInfo.SetExpectType(_variableResolve.SetVariable?.Type()).GetExpression(scope, assignmentContext.Value);
// Get the operation.
Token assignmentToken = assignmentContext.AssignmentToken;
CodeType variableType = variableExpression.Type(), valueType = _value.Type();
AssignmentOperator op = AssignmentOperation.OperatorFromTokenType(assignmentToken.TokenType);
_operation = variableType.Operations.GetOperation(op, valueType);
// No operators exist for the variable and value pair.
if (_operation == null)
{
// If the variable type is any, use default operation.
if (assignmentToken.TokenType == TokenType.Equal && variableType.Operations.DefaultAssignment && TypeComparison.IsAny(parseInfo.Types, variableType))
{
_operation = new AssignmentOperation(op, parseInfo.Types.Any());
}
// Otherwise, add an error.
else
{
parseInfo.Script.Diagnostics.Error("Operator '" + assignmentToken.Text + "' cannot be applied to the types '" + variableType.GetNameOrAny() + "' and '" + valueType.GetNameOrAny() + "'.", assignmentToken.Range);
}
}
}
public static void GetHook(ParseInfo parseInfo, Scope scope, Hook context)
{
parseInfo = parseInfo.SetCallInfo(new CallInfo(parseInfo.Script));
// Get the hook variable's expression.
IExpression variableExpression = parseInfo.GetExpression(scope, context.Variable);
// Resolve the variable.
VariableResolve resolvedVariable = new VariableResolve(parseInfo, new VariableResolveOptions()
{
// Not indexable
CanBeIndexed = false,
// Hook variables are not settable.
ShouldBeSettable = false
}, variableExpression, context.Variable.Range);
// Check if the resolved variable is a HookVar.
if (resolvedVariable.SetVariable?.Calling is HookVar hookVar)
{
// Get the hook value.
IExpression valueExpression = parseInfo.SetExpectType(hookVar.CodeType.GetCodeType(parseInfo.TranslateInfo)).GetExpression(scope, context.Value);
if (valueExpression == null)
{
return;
}
// If it is, set the hook.
hookVar.TrySet(parseInfo, valueExpression, context.Value.Range);
}
else
{
// Not a hook variable.
parseInfo.Script.Diagnostics.Error("Expected a hook variable.", context.Variable.Range);
}
}
private void GetInitialValue()
{
// Get the initial value.
if (_initialValueContext != null)
{
ParseInfo parseInfo = this._parseInfo;
// Store the initial value's restricted calls.
RestrictedCallList restrictedCalls = null;
if (_handleRestrictedCalls)
{
restrictedCalls = new RestrictedCallList();
parseInfo = parseInfo.SetRestrictedCallHandler(restrictedCalls);
}
ParseInfo initialValueParseInfo = parseInfo.SetExpectType(CodeType);
if (parseInfo.CurrentCallInfo == null)
{
CallInfo callInfo = new CallInfo(parseInfo.Script);
initialValueParseInfo = initialValueParseInfo.SetCallInfo(callInfo);
}
// Parse the initial value.
InitialValue = initialValueParseInfo.GetExpression(_operationalScope, _initialValueContext);
// Get the inferred type.
if (_inferType)
{
CodeType = InitialValue.Type();
_variableTypeHandler.SetType(CodeType);
AddScriptData();
}
// If the initial value's type is constant, make sure the constant type's implements the variable's type.
if (InitialValue?.Type() != null && InitialValue.Type().IsConstant() && !InitialValue.Type().Implements(CodeType))
{
parseInfo.Script.Diagnostics.Error($"The type '{InitialValue.Type().Name}' cannot be stored.", _initialValueContext.Range);
}
// If the variable's type is constant, make sure the value's type matches.
else
{
SemanticsHelper.ExpectValueType(parseInfo, InitialValue, CodeType, _initialValueContext.Range);
}
// Check restricted calls.
if (_handleRestrictedCalls)
{
foreach (RestrictedCall call in restrictedCalls)
{
// If the variable type is global, or the variable type is player and the restricted call type is not player...
if (VariableType == VariableType.Global ||
(VariableType == VariableType.Player && call.CallType != RestrictedCallType.EventPlayer))
{
// ... then add the error.
call.AddDiagnostic(parseInfo.Script.Diagnostics);
}
}
}
}
ValueReady.Set();
}