/// <summary>
/// Carries out identification on a const declaration node
/// </summary>
/// <param name="constDeclaration">The node to perform identification on</param>
private void PerformIdentificationOnConstDeclaration(ConstDeclarationNode constDeclaration)
{
Token token = constDeclaration.Identifier.IdentifierToken;
bool success = SymbolTable.Enter(token.Spelling, constDeclaration);
PerformIdentification(constDeclaration.Expression);
}
/// <summary>
/// Carries out identification on a const declaration node
/// </summary>
/// <param name="constDeclaration">The node to perform identification on</param>
private void PerformIdentificationOnConstDeclaration(ConstDeclarationNode constDeclaration)
{
Token token = constDeclaration.Identifier.IdentifierToken;
bool success = SymbolTable.Enter(token.Spelling, constDeclaration);
if (!success)
{
Reporter.ReportError($"{token.Position} -> Const declaration with {token.Spelling} " +
$"already exists in the current scope");
}
PerformIdentification(constDeclaration.Expression);
}
/// <summary>
/// Carries out identification on a const declaration node
/// </summary>
/// <param name="constDeclaration">The node to perform identification on</param>
private void PerformIdentificationOnConstDeclaration(ConstDeclarationNode constDeclaration)
{
Token token = constDeclaration.Identifier.IdentifierToken;
bool success = SymbolTable.Enter(token.Spelling, constDeclaration);
if (success)
{
PerformIdentification(constDeclaration.Expression);
}
else
{
IsItDirty();
Reporter.IdentifierErrorPositions.Add($"Error has occured here: {token.Position}, const already declared");
}
}
/// <summary>
/// Generates code for a const declaration node
/// </summary>
/// <param name="constDeclaration">The node to generate code for</param>
private void GenerateCodeForConstDeclaration(ConstDeclarationNode constDeclaration)
{
Debugger.Write("Generating code for Const Declaration");
if (constDeclaration.Expression is CharacterExpressionNode charLiteral)
{
constDeclaration.RuntimeEntity = new RuntimeKnownConstant((short)charLiteral.CharLit.Value);
}
else if (constDeclaration.Expression is IntegerExpressionNode intLiteral)
{
constDeclaration.RuntimeEntity = new RuntimeKnownConstant((short)intLiteral.IntLit.Value);
}
else
{
GenerateCodeFor(constDeclaration.Expression);
byte constantSize = constDeclaration.EntityType.Size;
short currentScopeSize = scopes.GetLocalScopeSize();
constDeclaration.RuntimeEntity = new RuntimeUnknownConstant(currentScopeSize, constantSize);
scopes.AddToLocalScope(constantSize);
}
}
private static void GenerateConstDeclaration(ConstDeclarationNode node, DataContext data)
{
data.VariableMap.DeclareVariable(node.ConstName, node.Line, node.Column);
StartLine(data, "context.DeclareVariable(\"{0}\", isConst: true, value: ", node.ConstName);
GenerateExpression(node.ValueExpression, data);
EndLine(data, ");");
}
