public void visitVarDeclaration(VarDeclarationNode node)
{
IdentifierNode identifier = (IdentifierNode)node.getChildren()[0];
string variableName = identifier.getVariableName();
if (this.forLoopControlVariables.Count > 0)
{
throw new SemanticException("Declaring variables inside for loop is not allowed.");
}
if (variableAlreadyDeclared(variableName))
{
throw new SemanticException("Variable '" + variableName + "' already declared.");
}
TypeNode typeNode = (TypeNode)node.getChildren()[1];
MiniPLTokenType type = (MiniPLTokenType)typeNode.getValue();
if (type == MiniPLTokenType.TYPE_IDENTIFIER_INTEGER)
{
this.symbolTable.addVariable(variableName, 0);
}
else if (type == MiniPLTokenType.TYPE_IDENTIFIER_STRING)
{
this.symbolTable.addVariable(variableName, "");
}
else if (type == MiniPLTokenType.TYPE_IDENTIFIER_BOOL)
{
this.symbolTable.addVariable(variableName, false);
}
else
{
throw new Exception("Unknown type usage in semantic analyzer.");
}
}
public void visitVarDeclaration(VarDeclarationNode node)
{
IdentifierNode identifier = (IdentifierNode)node.getChildren()[0];
string variableName = identifier.getVariableName();
TypeNode typeNode = (TypeNode)node.getChildren()[1];
MiniPLTokenType type = (MiniPLTokenType)typeNode.getValue();
typeCheck(typeNode, type);
}