public void Visit(DispatchExpNode node)
{
node.initDis.Accept(this);
if (node.initType.Text == "Object")
{
node.initType = new TypeNode(node.initDis.line, node.initDis.column, node.initDis.staticType.Text);
}
if (!scope.IsDefinedType(node.initType.Text, out TypeInfo typeSuperClass))
{
errors.Add(ErrorSemantic.NotDeclaredType(node.initType));
}
if (!(node.initDis.staticType <= typeSuperClass))
{
errors.Add(ErrorSemantic.CannotConvert(node, node.initDis.staticType, typeSuperClass));
}
node.paramFormal.ForEach(x => x.Accept(this));
var scopeSuperClass = typeSuperClass.ClassReference.Scope;
if (!(scopeSuperClass.IsDefined(node.Id.text, node.paramFormal.Select(x => x.staticType).ToArray(), out node.staticType)))
{
errors.Add(ErrorSemantic.NotDeclareFunction(node, node.Id.text));
}
}
public void Visit(FormalNode node)
{
if (!scope.IsDefinedType(node.type.Text, out node.staticType))
{
errors.Add(ErrorSemantic.NotDeclaredType(node.type));
}
}
public void Visit(MethodNode node)
{
var scopeMethod = scope.CreateChild();
foreach (var arg in node.paramsFormal)
{
if (!scope.IsDefinedType(arg.type.Text, out TypeInfo typeArg))
{
errors.Add(ErrorSemantic.NotDeclaredType(arg.type));
}
scopeMethod.Define(arg.id.text, typeArg);
}
if (!scope.IsDefinedType(node.return_type.Text, out TypeInfo type))
{
errors.Add(ErrorSemantic.NotDeclaredType(node.return_type));
}
scope.Define(node.id.text, node.paramsFormal.Select(x => scope.GetType(x.type.Text)).ToArray(), type);
node.body_expr.Accept(new SemanticVisit(errors, scopeMethod));
if (!(node.body_expr.staticType <= type))
{
errors.Add(ErrorSemantic.CannotConvert(node.body_expr, node.body_expr.staticType, type));
}
node.return_type = new TypeNode(node.body_expr.line, node.body_expr.column, type.Text);
}
public void Visit(IdNode node)
{
if (!scope.IsDefined(node.text, out node.staticType))
{
errors.Add(ErrorSemantic.NotDeclaredVariable(node));
}
}
public void Visit(StringNode node)
{
if (!scope.IsDefinedType("String", out node.staticType))
{
errors.Add(ErrorSemantic.NotDeclaredType(new TypeNode(node.line, node.column, "Int")));
}
}
public void Visit(LetInNode node)
{
var scopeLet = scope.CreateChild();
foreach (var expInit in node.propertyLet)
{
expInit.expr_body.Accept(new SemanticVisit(errors, scopeLet));
var typeAssignExp = expInit.expr_body.staticType;
if (!scopeLet.IsDefinedType(expInit.formal.type.Text, out TypeInfo typeDeclared))
{
errors.Add(ErrorSemantic.NotDeclaredType(expInit.formal.type));
}
if (!(typeAssignExp <= typeDeclared))
{
errors.Add(ErrorSemantic.CannotConvert(expInit.formal.type, typeAssignExp, typeDeclared));
}
if (scopeLet.IsDefined(expInit.formal.id.text, out TypeInfo typeOld))
{
scopeLet.UpdateType(expInit.formal.id.text, typeDeclared);
}
else
{
scopeLet.Define(expInit.formal.id.text, typeDeclared);
}
}
node.exprBody.Accept(new SemanticVisit(errors, scopeLet));
node.staticType = node.exprBody.staticType;
}
public void Visit(DispatchImpNode node)
{
node.paramFormal.ForEach(expArg => expArg.Accept(this));
if (!scope.IsDefined(node.Id.text, node.paramFormal.Select(x => x.staticType).ToArray(), out node.staticType))
{
errors.Add(ErrorSemantic.NotDeclareFunction(node, node.Id.text));
}
}
public void Visit(IsVoidNode node)
{
node.expr.Accept(this);
if (!scope.IsDefinedType("Bool", out node.staticType))
{
errors.Add(ErrorSemantic.NotDeclaredType(new TypeNode(node.line, node.column, "Bool")));
}
}
public void Visit(BlockNode node)
{
node.ExprBlock.ForEach(exp => exp.Accept(this));
var last = node.ExprBlock[node.ExprBlock.Count - 1];
if (!scope.IsDefinedType(last.staticType.Text, out node.staticType))
{
errors.Add(ErrorSemantic.NotDeclaredType(new TypeNode(last.line, last.column, last.staticType.Text)));
}
}
public void Visit(ConditionalNode node)
{
node.If.Accept(this);
node.Then.Accept(this);
node.Else.Accept(this);
if (node.If.staticType.Text != "Bool")
{
errors.Add(ErrorSemantic.CannotConvert(node.If, node.If.staticType, scope.GetType("Bool")));
}
node.staticType = SemanticAlgorithm.LowerCommonAncestor(node.Then.staticType, node.Else.staticType);
}
public void Visit(NotNode node)
{
node.expr.Accept(this);
if (node.expr.staticType.Text != "Bool")
{
errors.Add(ErrorSemantic.InvalidUseOfOperator(node, node.expr.staticType));
}
if (!scope.IsDefinedType("Bool", out node.staticType))
{
errors.Add(ErrorSemantic.NotDeclaredType(new TypeNode(node.line, node.column, "Bool")));
}
}
public void Visit(PropertyNode node)
{
if (!scope.IsDefinedType(node.formal.type.Text, out TypeInfo type))
{
errors.Add(ErrorSemantic.NotDeclaredType(node.formal.type));
}
if (scope.IsDefined(node.formal.id.text, out TypeInfo t))
{
errors.Add(ErrorSemantic.RepeatedVariable(node.formal.id));
}
scope.Define(node.formal.id.text, type);
}
public void Visit(WhileNode node)
{
node.condition.Accept(this);
node.loop_body.Accept(this);
if (node.condition.staticType.Text != "Bool")
{
errors.Add(ErrorSemantic.CannotConvert(node.condition, node.condition.staticType, scope.GetType("Bool")));
}
if (!scope.IsDefinedType("Object", out node.staticType))
{
errors.Add(ErrorSemantic.NotDeclaredType(new TypeNode(node.line, node.column, "Object")));
}
}
public void Visit(AssignNode node)
{
node.exprBody.Accept(this);
if (!scope.IsDefined(node.Id.text, out TypeInfo type))
{
errors.Add(ErrorSemantic.NotDeclaredVariable(node.Id));
}
if (!(node.exprBody.staticType <= type))
{
errors.Add(ErrorSemantic.CannotConvert(node, node.exprBody.staticType, type));
}
node.staticType = node.exprBody.staticType;
}
public void Visit(PropertyNode node)
{
node.expr_body.Accept(this);
var typebodyExpr = node.expr_body.staticType;
if (!scope.IsDefinedType(node.formal.type.Text, out TypeInfo typeDeclared))
{
errors.Add(ErrorSemantic.NotDeclaredType(node.formal.type));
}
if (!(typebodyExpr <= typeDeclared))
{
errors.Add(ErrorSemantic.CannotConvert(node.formal.type, typebodyExpr, typeDeclared));
}
scope.Define(node.formal.id.text, typeDeclared);
}
public void Visit(EqualNode node)
{
node.Rigthexpr.Accept(this);
node.Leftexpr.Accept(this);
if (node.Leftexpr.staticType.Text != node.Rigthexpr.staticType.Text || !(new string[3] {
"Bool", "Int", "String"
}.Contains(node.Leftexpr.staticType.Text)))
{
errors.Add(ErrorSemantic.InvalidUseOfOperator(node, node.Leftexpr.staticType, node.Rigthexpr.staticType));
}
if (!scope.IsDefinedType("Bool", out node.staticType))
{
errors.Add(ErrorSemantic.NotDeclaredType(new TypeNode(node.line, node.column, "Bool")));
}
}
public void Visit(CaseNode node)
{
node.CaseBase.Accept(this);
int branchSelected = -1;
var typeExp0 = node.CaseBase.staticType;
var typeExpK = scope.GetType(node.Branchs[0].formal.type.Text);
for (int i = 0; i < node.Branchs.Count; ++i)
{
if (!scope.IsDefinedType(node.Branchs[i].formal.type.Text, out TypeInfo type))
{
errors.Add(ErrorSemantic.NotDeclaredType(node.Branchs[i].formal.type));
}
var typeK = scope.GetType(node.Branchs[i].formal.type.Text);
var scopeBranch = scope.CreateChild();
scopeBranch.Define(node.Branchs[i].formal.id.text, typeK);
node.Branchs[i].expr.Accept(new SemanticVisit(errors, scopeBranch));
typeExpK = node.Branchs[i].expr.staticType;
if (branchSelected == -1 && typeExp0 <= typeK)
{
branchSelected = i;
}
if (i == 0)
{
node.staticType = node.Branchs[0].expr.staticType;
}
node.staticType = SemanticAlgorithm.LowerCommonAncestor(node.staticType, typeExpK);
}
node.Select = branchSelected;
if (node.Select == -1)
{
errors.Add(ErrorSemantic.NotMatchedBranch(node));
}
}
public void Visit(MethodNode node)
{
if (!scope.IsDefinedType(node.return_type.Text, out TypeInfo type))
{
errors.Add(ErrorSemantic.NotDeclaredType(node.return_type));
}
node.return_type = new TypeNode(node.return_type.line, node.return_type.column, type.Text);
TypeInfo[] typeArgs = new TypeInfo[node.paramsFormal.Count];
for (int i = 0; i < node.paramsFormal.Count; ++i)
{
if (!scope.IsDefinedType(node.paramsFormal[i].type.Text, out typeArgs[i]))
{
errors.Add(ErrorSemantic.NotDeclaredType(node.paramsFormal[i].type));
}
}
scope.Define(node.id.text, typeArgs, type);
}
//faltan poner los scope
public void Visit(AritmethicNode node)
{
node.Rigthexpr.Accept(this);
node.Leftexpr.Accept(this);
if (node.Leftexpr.staticType.Text != node.Rigthexpr.staticType.Text)
{
errors.Add(ErrorSemantic.InvalidUseOfOperator(node, node.Leftexpr.staticType, node.Rigthexpr.staticType));
}
else if (node.Leftexpr.staticType.Text != "Int" || node.Rigthexpr.staticType.Text != "Int")
{
errors.Add(ErrorSemantic.InvalidUseOfOperator(node));
}
else if (!scope.IsDefinedType("Int", out node.staticType))
{
errors.Add(ErrorSemantic.NotDeclaredType(new TypeNode(node.line, node.column, "Int")));
}
}
public void Visit(ProgNode node)
{
if (!SemanticAlgorithm.CheckTopology(node.classes, errors))
{
return;
}
node.classes.ForEach(cclass => scope.AddType(cclass.type.Text, new TypeInfo(cclass.type.Text, scope.GetType(cclass.Inherit.Text), cclass)));
int idMain = -1;
for (int i = 0; i < node.classes.Count; ++i)
{
if (node.classes[i].type.Text == "Main")
{
idMain = i;
}
}
if (idMain == -1)
{
errors.Add(ErrorSemantic.NotFoundClassMain());
return;
}
bool mainOK = false;
foreach (var item in node.classes[idMain].features)
{
if (item is MethodNode)
{
var method = item as MethodNode;
if (method.id.text == "main" && method.paramsFormal.Count == 0)
{
mainOK = true;
}
}
}
if (!mainOK)
{
errors.Add(ErrorSemantic.NotFoundMethodmain(node.classes[idMain]));
}
foreach (var cclass in node.classes)
{
if (!scope.IsDefinedType(cclass.Inherit.Text, out TypeInfo type))
{
errors.Add(ErrorSemantic.NotDeclaredType(cclass.Inherit));
return;
}
if (new List <string> {
"Bool", "Int", "String"
}.Contains(type.Text))
{
errors.Add(ErrorSemantic.NotInheritsOf(cclass, type));
return;
}
cclass.Accept(this);
}
}
