public AstClassField(
AstVisibilityModifier visibility,
AstStaticModifier staticMod,
AstIdExpression typeDef,
AstIdExpression name
)
{
Visibility = visibility;
Static = staticMod;
TypeDef = typeDef;
Name = name;
}
public AstClassMethod(
AstVisibilityModifier visibility,
AstStaticModifier staticMod,
AstIdExpression typeDef,
AstIdExpression name,
AstArgumentsDefList argumentsDefinition,
AstStatementsBlock statementsBlock
)
{
Visibility = visibility;
Static = staticMod;
TypeDef = typeDef;
Name = name;
ArgumentsDefinition = argumentsDefinition;
StatementsBlock = statementsBlock;
}
public AstAssignStatement(AstIdExpression var, AstExpression newValue)
{
Variable = var;
NewValue = newValue;
}
public AstClass(AstIdExpression name, AstClassBody body)
{
Name = name;
Body = body;
}
public override bool Visit(AstIdExpression node)
{
if (currStateInsideExpr)
{
var s = table.Lookup(node.Id);
if (s != null)
{
s.Used = true;
}
else
{
s = table.LookupFunction(node.Id);
if (s != null)
{
s.Used = true;
}
}
}
return true;
}
public AstArrayInitializerStatement(AstIdExpression id, List<AstIntegerValueExpression> values)
{
Id = id;
Values = values;
}
// #TYPE_DEFINITION INT
private void ConstructIntTypeDefinition()
{
var typeDef = new AstIdExpression(BuiltInTypes.INT);
PushNode(typeDef);
}
public override bool Visit(AstIdExpression node)
{
return true;
}
// #TYPE_DEFINITION CHAR
private void ConstructCharTypeDefinition()
{
var typeDef = new AstIdExpression(BuiltInTypes.CHAR);
PushNode(typeDef);
}
public void AddAstIdNode(Token t)
{
var node = new AstIdExpression(t.Attribute);
PushNode(node);
}
// #TYPE_DEFINITION BOOL
private void ConstructBoolTypeDefinition()
{
var typeDef = new AstIdExpression(BuiltInTypes.BOOL);
PushNode(typeDef);
}
private string GetDefaultTypeValue(AstIdExpression node)
{
switch (node.Id)
{
case BuiltInTypes.INT:
return "0";
case BuiltInTypes.BOOL:
return "0";
case BuiltInTypes.VOID:
return "";
case BuiltInTypes.STRING:
return "null";
default:
throw new NotImplementedException();
}
}
public override bool Visit(AstIdExpression node)
{
var symbolTableVariable = table.Lookup(node.Id);
var type = symbolTableVariable.Type;
var llvmType = GetLLVMType(symbolTableVariable.Type);
if (classVariables.Contains(node.Id))
{
codeStream.WriteLine(CreateUnnamedVariable() + " = load " + llvmType + "* @" + node.Id);
if (IsNegative)
{
string positiveVar = GetCurrUnnamedVariable();
codeStream.WriteLine(CreateUnnamedVariable() + " = sub " + llvmType + " 0, " + positiveVar);
}
if (IsNot)
{
string inverseVal = GetCurrUnnamedVariable();
codeStream.WriteLine(CreateUnnamedVariable() + " = xor " + llvmType + " " + inverseVal + ", 1");
}
}
else if (type == BuiltInTypes.STRING)
{
codeStream.WriteLine(CreateUnnamedVariable() + " = alloca i8*");
var id = GetCurrUnnamedVariable();
codeStream.WriteLine("store i8* %" + GetCurrVariableState(node.Id) + ", i8** " + GetCurrUnnamedVariable());
codeStream.WriteLine(CreateUnnamedVariable() + " = load i8** " + id);
}
else
{
if (IsNot)
{
codeStream.WriteLine(CreateUnnamedVariable() + " = xor " + llvmType + " %" + GetCurrVariableState(node.Id) + ", 0");
}
else
{
string saveOperation = "add ";
if (IsNegative)
{
saveOperation = "sub ";
}
codeStream.WriteLine(CreateUnnamedVariable() + " = " + saveOperation + llvmType + " 0, %" + GetCurrVariableState(node.Id));
}
}
SaveArg(llvmType + " " + GetCurrUnnamedVariable());
return true;
}
public AstExternalMethodCallExpression(AstIdExpression target, AstIdExpression name, AstArgumentsCallList callArgs)
{
Target = target;
Name = name;
CallArgs = callArgs;
}
// #TYPE_DEFINITION STRING
private void ConstructStringTypeDefinition()
{
var typeDef = new AstIdExpression(BuiltInTypes.STRING);
PushNode(typeDef);
}
public AstArgumentDef(AstIdExpression typeDef, AstIdExpression name)
{
TypeDef = typeDef;
Name = name;
}
public AstThisMethodCallExpression(AstIdExpression name, AstArgumentsCallList callArgs)
{
Name = name;
CallArgs = callArgs;
}
public override bool Visit(AstIdExpression node)
{
ErrorIfIsNull(node.Id);
return true;
}
public abstract bool Visit(AstIdExpression node);
