//main
public override void InAMain(AMain node)
{
// build def for allowed types
BasicTypeDefinition intType;
intType = new BasicTypeDefinition();
intType.name = "int";
BasicTypeDefinition fltType;
fltType = new BasicTypeDefinition();
fltType.name = "float";
BasicTypeDefinition boolType;
boolType = new BasicTypeDefinition();
boolType.name = "boolean";
StringTypeDefinition stringType = new StringTypeDefinition();
stringType.name = "string";
// create and seed symbol tables
_currentSymbolTable = new Dictionary <string, Definition>();
_currentSymbolTable.Add("int", intType);
_currentSymbolTable.Add("float", fltType);
_currentSymbolTable.Add("boolean", boolType);
_currentSymbolTable.Add("string", stringType);
}
public override void InAFunctionFunctionDeclaration(AFunctionFunctionDeclaration node)
{
// Save current symbol table.
_previousSymbolTables.AddFirst(_currentSymbolTable);
// Build definitions for allowed types according to grammar. CS426 only allows int and string and float
BasicTypeDefinition intType;
intType = new BasicTypeDefinition();
intType.name = "int";
StringTypeDefinition stringType = new StringTypeDefinition();
stringType.name = "string";
BasicTypeDefinition floatType;
floatType = new BasicTypeDefinition();
floatType.name = "float";
// Create and seed the symbol table.
if (!_functionSymbolTable.ContainsKey("int"))
{
_functionSymbolTable.Add("int", intType);
_functionSymbolTable.Add("string", stringType);
_functionSymbolTable.Add("float", floatType);
}
}
//in method
public override void InAMethod(AMethod node)
{
// save current symbol table
_previousSymbolTables.AddFirst(_currentSymbolTable);
// build new param list
_currentParamList = new List <VariableDefinition>();
// build def allowed by types according to grammar
BasicTypeDefinition intType;
intType = new BasicTypeDefinition();
intType.name = "int";
BasicTypeDefinition fltType;
fltType = new BasicTypeDefinition();
fltType.name = "float";
BasicTypeDefinition boolType;
boolType = new BasicTypeDefinition();
boolType.name = "boolean";
StringTypeDefinition stringType = new StringTypeDefinition();
stringType.name = "string";
// create and seed symbol table
_currentSymbolTable = new Dictionary <string, Definition>();
_currentSymbolTable.Add("int", intType);
_currentSymbolTable.Add("float", fltType);
_currentSymbolTable.Add("boolean", boolType);
_currentSymbolTable.Add("string", stringType);
}
public override void InAMainProgram(AMainProgram node)
{
// Build definitions for allowed types according to grammar. CS246 grammar only allows int, string, and float
BasicTypeDefinition intType;
intType = new BasicTypeDefinition();
intType.name = "int";
StringTypeDefinition stringType = new StringTypeDefinition();
stringType.name = "string";
BasicTypeDefinition floatType = new BasicTypeDefinition();
floatType.name = "float";
// Create and seed the symbolTable
_currentSymbolTable = new Dictionary <string, Definition>();
_currentSymbolTable.Add("int", intType);
_currentSymbolTable.Add("string", stringType);
_currentSymbolTable.Add("float", floatType);
}
