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Token.c++
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//
// Token.c++
// Tech1
//
// Created by Justin Hust on 12/15/13.
// Copyright (c) 2013 __MyCompanyName__. All rights reserved.
//
#include "Token.h"
#include "Environment.h"
#include "System.h"
#include "Util.h"
#include <iostream>
#include <sstream>
#include <cassert>
// ------------------------------------------------------
Token::Token(void) {
_typ = Token_None;
_line = 0;
_col = 0;
_parent = NULL;
_operands = NULL;
_link = NULL;
}
// ------------------------------------------------------
Token::~Token(void) {
// no cleanup code yet
}
// ------------------------------------------------------
void Token::setLineCol(unsigned int line, unsigned int col) {
_line = line;
_col = col;
}
// ------------------------------------------------------
void Token::setParent(Token *tokParent) {
assert(tokParent != NULL);
_parent = tokParent;
}
// ------------------------------------------------------
void Token::addChild(Token *tokChild) {
assert(tokChild != NULL);
// set its parent to us
tokChild->setParent(this);
// follow operand chain to end if need to
if(this->_operands == NULL)
this->_operands = tokChild;
else {
Token *lastOperand = this->_operands;
while(lastOperand->getLink())
lastOperand = lastOperand->getLink();
lastOperand->_link = tokChild;
}
}
// ------------------------------------------------------
TokenType Token::getType(void) const {
return _typ;
}
// ------------------------------------------------------
ReturnType Token::getReturnType(void) const {
return _rt;
}
// ------------------------------------------------------
Token * Token::getParent(void) const {
return _parent;
}
// ------------------------------------------------------
unsigned int Token::getNumChildren(void) const {
unsigned int n = 0;
Token *operand = this->_operands;
while(operand) {
n++;
operand = operand->getLink();
}
return n;
}
// ------------------------------------------------------
Token * Token::getChild(unsigned int i) const {
assert(i >= 0);
Token *operand = this->_operands;
unsigned int n = 0;
while(operand) {
if(n == i)
return operand;
n++;
operand = operand->getLink();
}
assert(!"Child not found at index.");
return NULL;
}
// ------------------------------------------------------
Token * Token::getLink(void) const {
return _link;
}
// ------------------------------------------------------
BooleanLiteralToken::BooleanLiteralToken(bool bVal) {
_typ = Token_BooleanLiteral;
_rt = Return_Boolean;
_bVal = bVal;
}
// ------------------------------------------------------
BooleanLiteralToken::~BooleanLiteralToken(void) {
// no cleanup code
}
// ------------------------------------------------------
bool BooleanLiteralToken::getVal(void) const {
return _bVal;
}
// ------------------------------------------------------
std::string BooleanLiteralToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\tbool\t ";
if(_bVal) {
ss << "TRUE";
} else {
ss << "FALSE";
}
return ss.str();
}
// ------------------------------------------------------
Variant BooleanLiteralToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
return Variant(_bVal);
}
// ------------------------------------------------------
IntegerLiteralToken::IntegerLiteralToken(int iVal) {
_typ = Token_IntegerLiteral;
_rt = Return_Integer;
_iVal = iVal;
}
// ------------------------------------------------------
IntegerLiteralToken::~IntegerLiteralToken(void) {
// no cleanup code
}
// ------------------------------------------------------
int IntegerLiteralToken::getVal(void) const {
return _iVal;
}
// ------------------------------------------------------
std::string IntegerLiteralToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\tint\t " << _iVal;
return ss.str();
}
// ------------------------------------------------------
Variant IntegerLiteralToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
return Variant(_iVal);
}
// ------------------------------------------------------
FloatLiteralToken::FloatLiteralToken(float fVal) {
_typ = Token_FloatLiteral;
_rt = Return_Float;
_fVal = fVal;
}
// ------------------------------------------------------
FloatLiteralToken::~FloatLiteralToken(void) {
// no cleanup code
}
// ------------------------------------------------------
float FloatLiteralToken::getVal(void) const {
return _fVal;
}
// ------------------------------------------------------
std::string FloatLiteralToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\tfloat\t " << _fVal;
return ss.str();
}
// ------------------------------------------------------
Variant FloatLiteralToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
return Variant(_fVal);
}
// ------------------------------------------------------
StringLiteralToken::StringLiteralToken(const std::string &sVal) {
_typ = Token_StringLiteral;
_rt = Return_String;
_sVal = sVal;
}
// ------------------------------------------------------
StringLiteralToken::~StringLiteralToken(void) {
// no cleanup code
}
// ------------------------------------------------------
std::string StringLiteralToken::getVal(void) const {
return _sVal;
}
// ------------------------------------------------------
std::string StringLiteralToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\tstring\t " << _sVal;
return ss.str();
}
// ------------------------------------------------------
Variant StringLiteralToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
return Variant(_sVal);
}
// ------------------------------------------------------
SquareBracketsToken::SquareBracketsToken(void) {
_typ = Token_SquareBrackets;
_rt = Return_Vec3;
}
// ------------------------------------------------------
SquareBracketsToken::~SquareBracketsToken(void) {
// no cleanup code
}
// ------------------------------------------------------
std::string SquareBracketsToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\treserv\t SQUAREBRACKETS";
return ss.str();
}
// ------------------------------------------------------
Variant SquareBracketsToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
unsigned int numChildren = this->getNumChildren();
assert(numChildren == 3);
Variant valLeft = this->getChild(0)->execute(envLocal, sys, oss);
Variant valMiddle = this->getChild(1)->execute(envLocal, sys, oss);
Variant valRight = this->getChild(2)->execute(envLocal, sys, oss);
assert(valLeft.isNumeric());
assert(valMiddle.isNumeric());
assert(valRight.isNumeric());
return Variant( Vec3(valLeft.toFloat(), valMiddle.toFloat(), valRight.toFloat() ) );
}
// ------------------------------------------------------
CloseSquareBracketToken::CloseSquareBracketToken(void) {
_typ = Token_CloseSquareBracket;
_rt = Return_Void;
}
// ------------------------------------------------------
CloseSquareBracketToken::~CloseSquareBracketToken(void) {
// no cleanup code
}
// ------------------------------------------------------
std::string CloseSquareBracketToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\treserv\t CLOSESQBRACKET";
return ss.str();
}
// ------------------------------------------------------
Variant CloseSquareBracketToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
assert(!"Never executed.");
return Variant();
}
// ------------------------------------------------------
IdentifierToken::IdentifierToken(const std::string &sVal) {
_typ = Token_Identifier;
_rt = Return_Undeclared;
_sVal = sVal;
}
// ------------------------------------------------------
IdentifierToken::~IdentifierToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string IdentifierToken::getVal(void) const {
return _sVal;
}
// ------------------------------------------------------
std::string IdentifierToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\tident\t " << _sVal;
return ss.str();
}
// ------------------------------------------------------
Variant IdentifierToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
return envLocal.get(_sVal);
}
// ------------------------------------------------------
LPARToken::LPARToken(void) {
_typ = Token_LPAR;
_rt = Return_Void;
}
// ------------------------------------------------------
LPARToken::~LPARToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string LPARToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\treserv\t (";
return ss.str();
}
// ------------------------------------------------------
Variant LPARToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
assert(!"Never called.");
return Variant();
}
// ------------------------------------------------------
RPARToken::RPARToken(void) {
_typ = Token_RPAR;
_rt = Return_Void;
}
// ------------------------------------------------------
RPARToken::~RPARToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string RPARToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\treserv\t )";
return ss.str();
}
// ------------------------------------------------------
Variant RPARToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
assert(!"Never called.");
return Variant();
}
// ------------------------------------------------------
BoolToken::BoolToken(void) {
_typ = Token_Bool;
_rt = Return_Void;
}
// ------------------------------------------------------
BoolToken::~BoolToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string BoolToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\treserv\t BOOL";
return ss.str();
}
// ------------------------------------------------------
Variant BoolToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
unsigned int numChildren = this->getNumChildren();
assert(numChildren == 1 || numChildren == 2);
assert(this->getChild(0)->getType() == Token_Identifier);
IdentifierToken *tokIdent = dynamic_cast<IdentifierToken *>(this->getChild(0));
Variant val;
if(this->getNumChildren() == 2) {
Token *tokRHS = this->getChild(1);
assert(tokRHS->getReturnType() == Return_Boolean);
val = tokRHS->execute(envLocal, sys, oss);
} else {
val = false;
}
// add to local environment
envLocal.declare(tokIdent->getVal(), val);
return Variant();
}
// ------------------------------------------------------
IntToken::IntToken(void) {
_typ = Token_Int;
_rt = Return_Void;
}
// ------------------------------------------------------
IntToken::~IntToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string IntToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\treserv\t INT";
return ss.str();
}
// ------------------------------------------------------
Variant IntToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
unsigned int numChildren = this->getNumChildren();
assert(numChildren == 1 || numChildren == 2);
assert(this->getChild(0)->getType() == Token_Identifier);
IdentifierToken *tokIdent = dynamic_cast<IdentifierToken *>(this->getChild(0));
Variant val;
if(this->getNumChildren() == 2) {
Token *tokRHS = this->getChild(1);
// assert(tokRHS->getReturnType() == Return_Integer);
val = tokRHS->execute(envLocal, sys, oss);
} else {
val = 0;
}
// add to local environment
envLocal.declare(tokIdent->getVal(), val);
return Variant();
}
// ------------------------------------------------------
FloatToken::FloatToken(void) {
_typ = Token_Float;
_rt = Return_Void;
}
// ------------------------------------------------------
FloatToken::~FloatToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string FloatToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\treserv\t FLOAT";
return ss.str();
}
// ------------------------------------------------------
Variant FloatToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
unsigned int numChildren = this->getNumChildren();
assert(numChildren == 1 || numChildren == 2);
assert(this->getChild(0)->getType() == Token_Identifier);
IdentifierToken *tokIdent = dynamic_cast<IdentifierToken *>(this->getChild(0));
Variant val;
if(this->getNumChildren() == 2) {
Token *tokRHS = this->getChild(1);
assert(tokRHS->getReturnType() == Return_Float);
val = tokRHS->execute(envLocal, sys, oss);
} else {
val = 0.0f;
}
// add to local environment
envLocal.declare(tokIdent->getVal(), val);
return Variant();
}
// ------------------------------------------------------
StringToken::StringToken(void) {
_typ = Token_String;
_rt = Return_Void;
}
// ------------------------------------------------------
StringToken::~StringToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string StringToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\treserv\t STRING";
return ss.str();
}
// ------------------------------------------------------
Variant StringToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
unsigned int numChildren = this->getNumChildren();
assert(numChildren == 1 || numChildren == 2);
assert(this->getChild(0)->getType() == Token_Identifier);
IdentifierToken *tokIdent = dynamic_cast<IdentifierToken *>(this->getChild(0));
Variant val;
if(this->getNumChildren() == 2) {
Token *tokRHS = this->getChild(1);
assert(tokRHS->getReturnType() == Return_String);
val = tokRHS->execute(envLocal, sys, oss);
} else {
val = "";
}
// add to local environment
envLocal.declare(tokIdent->getVal(), val);
return Variant();
}
// ------------------------------------------------------
Vec3Token::Vec3Token(void) {
_typ = Token_Vec3;
_rt = Return_Void;
}
// ------------------------------------------------------
Vec3Token::~Vec3Token(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string Vec3Token::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\treserv\t VEC3";
return ss.str();
}
// ------------------------------------------------------
Variant Vec3Token::execute(Environment &envLocal, System &sys, std::ostream &oss) {
unsigned int numChildren = this->getNumChildren();
assert(numChildren == 1 || numChildren == 2);
assert(this->getChild(0)->getType() == Token_Identifier);
IdentifierToken *tokIdent = dynamic_cast<IdentifierToken *>(this->getChild(0));
Variant val;
if(this->getNumChildren() == 2) {
Token *tokRHS = this->getChild(1);
assert(tokRHS->getReturnType() == Return_Vec3);
val = tokRHS->execute(envLocal, sys, oss);
} else {
val = "";
}
// add to local environment
envLocal.declare(tokIdent->getVal(), val);
return Variant();
}
// ------------------------------------------------------
PrognToken::PrognToken(void) {
_typ = Token_Progn;
_rt = Return_Void;
}
// ------------------------------------------------------
PrognToken::~PrognToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string PrognToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\treserv\t PROGN";
return ss.str();
}
// ------------------------------------------------------
Variant PrognToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
unsigned int numChildren = this->getNumChildren();
for(unsigned int i=0;i<numChildren;i++) {
Token *tokChild = this->getChild(i);
tokChild->execute(envLocal, sys, oss);
}
// TODO: return last statement?
return Variant();
}
// ------------------------------------------------------
AssignToken::AssignToken(void) {
_typ = Token_Assign;
_rt = Return_Void;
}
// ------------------------------------------------------
AssignToken::~AssignToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string AssignToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\top\t ASSIGN";
return ss.str();
}
// ------------------------------------------------------
Variant AssignToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
int iNumChildren = this->getNumChildren();
assert(iNumChildren == 2);
IdentifierToken *tokIdent = dynamic_cast<IdentifierToken *>(this->getChild(0));
Token *tokRHS = this->getChild(1);
Variant val = tokRHS->execute(envLocal, sys, oss);
Variant currVal = envLocal.get(tokIdent->getVal());
assert(currVal.getType() == val.getType() );
// add to local environment
envLocal.set(tokIdent->getVal(), val);
return Variant();
}
// ------------------------------------------------------
PlusToken::PlusToken(void) {
_typ = Token_Plus;
//setReturnType(Return_Void);
}
// ------------------------------------------------------
PlusToken::~PlusToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string PlusToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\top\t PLUS";
return ss.str();
}
// ------------------------------------------------------
Variant PlusToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
assert(!"Unimplemented.");
return Variant();
}
// ------------------------------------------------------
PlusPlusToken::PlusPlusToken(void) {
_typ = Token_PlusPlus;
_rt = Return_Void;
}
// ------------------------------------------------------
PlusPlusToken::~PlusPlusToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string PlusPlusToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\top\t PLUSPLUS";
return ss.str();
}
// ------------------------------------------------------
Variant PlusPlusToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
unsigned int numChildren = this->getNumChildren();
assert(numChildren == 1);
Token *tok = this->getChild(0);
assert(tok->getType() == Token_Identifier);
IdentifierToken *tokIdent= dynamic_cast<IdentifierToken *>(tok);
Variant varVal = tokIdent->execute(envLocal, sys, oss);
assert(varVal.isInteger());
++varVal;
envLocal.set(tokIdent->getVal(), varVal);
return Variant();
}
// ------------------------------------------------------
MinusMinusToken::MinusMinusToken(void) {
_typ = Token_MinusMinus;
_rt = Return_Void;
}
// ------------------------------------------------------
MinusMinusToken::~MinusMinusToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string MinusMinusToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\top\t MINUSMINUS";
return ss.str();
}
// ------------------------------------------------------
Variant MinusMinusToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
unsigned int numChildren = this->getNumChildren();
assert(numChildren == 1);
Token *tok = this->getChild(0);
assert(tok->getType() == Token_Identifier);
IdentifierToken *tokIdent= dynamic_cast<IdentifierToken *>(tok);
Variant varVal = tokIdent->execute(envLocal, sys, oss);
assert(varVal.isInteger());
--varVal;
envLocal.set(tokIdent->getVal(), varVal);
return Variant();
}
// ------------------------------------------------------
IfToken::IfToken(void) {
_typ = Token_If;
//setReturnType(Return_Void);
}
// ------------------------------------------------------
IfToken::~IfToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string IfToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\treserv\t IF";
return ss.str();
}
// ------------------------------------------------------
Variant IfToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
unsigned int numChildren = this->getNumChildren();
assert(numChildren == 2 || numChildren == 3);
assert(this->getChild(0)->getReturnType() == Return_Boolean );
Variant bCond = this->getChild(0)->execute(envLocal, sys, oss);
if(bCond == true) {
this->getChild(1)->execute(envLocal, sys, oss);
} else if(numChildren == 3) {
this->getChild(2)->execute(envLocal, sys, oss);
}
return Variant();
}
// ------------------------------------------------------
DoTimesToken::DoTimesToken(void) {
_typ = Token_DoTimes;
_rt = Return_Void;
}
// ------------------------------------------------------
DoTimesToken::~DoTimesToken(void) {
// no cleanup code yet
}
// ------------------------------------------------------
std::string DoTimesToken::toString(void) const {
std::ostringstream ss;
ss << _line << ":" << _col << "\treserv\t DOTIMES";
return ss.str();
}
// ------------------------------------------------------
Variant DoTimesToken::execute(Environment &envLocal, System &sys, std::ostream &oss) {
unsigned int numChildren = this->getNumChildren();
assert(numChildren == 2);
Variant numTimes = this->getChild(0)->execute(envLocal, sys, oss);
assert(numTimes.isInteger());
for(int i=0; i < numTimes.getInteger(); i++) {
this->getChild(1)->execute(envLocal, sys, oss);
}
return Variant();
}
// ------------------------------------------------------
WhileToken::WhileToken(void) {
_typ = Token_While;
_rt = Return_Void;
}
// ------------------------------------------------------
WhileToken::~WhileToken(void) {