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comp.y
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comp.y
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/**********/
/* HEADER */
/**********/
%code requires{
#include <iostream>
#include <stack>
#include <libgen.h>
#include <string.h>
#include <unordered_map>
#include "front_end/Enumeration.h"
#include "front_end/Genesis.h"
#include "front_end/DeclarationVariable.h"
#include "front_end/Type.h"
#include "front_end/MultipleDeclarationVariable.h"
#include "front_end/Argument.h"
#include "front_end/ArgumentList.h"
#include "front_end/Expression.h"
#include "front_end/DeclarationInitVariable.h"
#include "front_end/DeclarationArrayVariable.h"
#include "front_end/GlobalDeclarationVariable.h"
#include "front_end/FunctionCallExpression.h"
#include "front_end/BinaryOperatorExpression.h"
#include "front_end/UnaryOperatorExpression.h"
#include "front_end/ExpressionInteger.h"
#include "front_end/CrementVariable.h"
#include "front_end/DeclarationFunctionStatement.h"
#include "front_end/DeclarationFunction.h"
#include "front_end/ExpressionVariable.h"
#include "front_end/ExpressionArrayVariable.h"
#include "front_end/AssignmentVariable.h"
#include "front_end/AssignmentOperationVariable.h"
#include "front_end/Return.h"
#include "front_end/SimpleStatement.h"
#include "front_end/ReturnStatement.h"
#include "front_end/UselessStatement.h"
#include "front_end/MultipleStatement.h"
#include "front_end/Statement.h"
#include "front_end/InitFunctionStatement.h"
#include "front_end/BlockDeclarationVariable.h"
#include "front_end/IterationStatement.h"
#include "front_end/SelectionStatement.h"
#include "front_end/ExpressionStatement.h"
#include "front_end/PureDeclarationFunctionStatement.h"
#include "front_end/LoopExpression.h"
#include "front_end/WhileLoop.h"
#include "front_end/ForLoop.h"
#include "front_end/Erreur.h"
Genesis* bison(int argc, char* argv[]);
}
%{
#include "comp.tab.h"
char* filename;
extern int yylex(void);
extern int yylex_destroy(void);
void yyerror(Genesis** g, const char* msg);
void yyerror(const char* msg);
void yywarning(const char* msg);
extern FILE* yyin;
extern int yylineno;
extern int column;
// Utilisé pour les déclarations de variables
int currVariableType;
extern bool hasSyntaxError;
extern std::string syntaxError;
bool variableIsVoid(Genesis** g, Type* type);
bool tryCallFunction(Genesis** g, char* functionName);
bool tryDeclareGlobalVariable(Genesis** g,Type* type, MultipleDeclarationVariable* multDecl);
bool tryDefineFunction(Genesis** g, Type* type, char* name, bool isDeclaration, ArgumentList* args);
bool checkVariableDuplicationInFunction(Genesis** g, char* functionName, ArgumentList* args, DeclarationFunctionStatement* declFunc);
bool checkVariableDuplicationInBlock(Genesis** g, MultipleStatement* multStat);
int getFunctionType(char* name);
// Si on a plusieurs fois une variable de même nom,
// renvoi le type de celle du bloc courant
int getVariableType(char* name);
void pushVariablesInStack(Type* type, MultipleDeclarationVariable* multDecl);
void pushVariablesInStack(Argument* arg);
void popVariablesFromStack(ArgumentList* args, DeclarationFunctionStatement* stat);
void popStatVariablesFromStack(MultipleStatement* stat);
void popSimpleStatVariablesFromStack(SimpleStatement* stat);
std::vector<VariableContainer*> globalVariables;
std::vector<FunctionContainer*> functions;
// Une "pile" des variables locales courantes (rempli et vidé au fur et a mesure)
std::vector<VariableContainer*> currentVars;
// Donne le type primitif correspondant à un type tableau (ex: INT32[] -> INT32)
int primitiveToArrayType(int type);
// Donne le type tableau correspondant à un type primitif (ex: INT32 -> INT32[])
int arrayToPrimitiveType(int type);
bool checkConflictError(Genesis** g, Expression* expr1, Expression* expr2);
void checkAssignmentConstant(int leftExpressionType, Expression* rightExpression);
bool checkArrayTypeConflitError(Genesis** g, int type1, int type2);
std::string getNameOfType(int type);
bool checkVariableExist(Genesis** g, char* name);
struct FunctionCall
{
std::string functionName;
int line;
int column;
FunctionCall(std::string _functionName, int _line, int _column)
: functionName(_functionName), line(_line), column(_column)
{
}
};
std::unordered_map<std::string, FunctionCall*> calledFunctions;
std::unordered_map<std::string, FunctionCall*> undefinedFunctionCall;
bool checkUndeclaredFunctionErrors();
bool checkUndefinedFunctionErrors();
%}
/**************/
/* STRUCTURES */
/**************/
%union {
int i;
char* s;
Genesis* g;
Declaration* d;
MultipleDeclarationVariable* mdv;
DeclarationFunction* df;
DeclarationVariable* dv;
Type* type;
Expression* expr;
ExpressionVariable* exprVar;
AssignmentVariable* assignVar;
DeclarationFunctionStatement* dfs;
ArgumentList* al;
MultipleStatement* ms;
Argument* arg;
SimpleStatement* ss;
IterationStatement* iss;
SelectionStatement* sss;
Return* ret;
Statement* stat;
LoopExpression* loopexpr;
}
/**********/
/* TOKENS */
/**********/
// Liste des tokens issus de Flex (comp.l)
%token <s> ID
%token <i> INT
%token <ival> ELLIPSE
%token <ival> RIGHT_DEC_ASSIGN
%token <ival> LEFT_DEC_ASSIGN
%token <ival> PLUS_ASSIGN
%token <ival> MINUS_ASSIGN
%token <ival> DIV_ASSIGN
%token <ival> MUL_ASSIGN
%token <ival> MOD_ASSIGN
%token <ival> AND_ASSIGN
%token <ival> OR_ASSIGN
%token <ival> OR_EXCL_ASSIGN
%token <ival> INCREMENT
%token <ival> DECREMENT
%token <ival> RIGHT_DEC
%token <ival> LEFT_DEC
%token <ival> MORE_THAN_OR_EQUAL
%token <ival> LESS_THAN_OR_EQUAL
%token <ival> DIFF
%token <ival> EQUAL_EQUAL
%token <ival> AND_AND
%token <ival> OR_OR
%token <ival> EQUAL
%token <ival> PLUS
%token <ival> MINUS
%token <ival> DIV
%token <ival> MUL
%token <ival> MOD
%token <ival> AND
%token <ival> OR
%token <ival> NOT
%token <ival> NOT_BIT
%token <ival> POW
%token <ival> MORE_THAN
%token <ival> LESS_THAN
%token <ival> SEMICOLON
%token <ival> COMMA
%token <ival> OPEN_BRACE
%token <ival> CLOSE_BRACE
%token <ival> OPEN_PARENTHESIS
%token <ival> CLOSE_PARENTHESIS
%token <ival> OPEN_HOOK
%token <ival> CLOSE_HOOK
%token <ival> VOID
%token <ival> CHAR
%token <ival> INT32
%token <ival> INT64
%token <ival> BREAK
%token <ival> RETURN
%token <ival> CONTINUE
%token <ival> WHILE
%token <ival> FOR
%token <ival> IF
%token <ival> ELSE
%token <ival> CHAR_ARRAY
%token <ival> INT32_ARRAY
%token <ival> INT64_ARRAY
// Type permettant la création de la structure de données
%type <g> genesis
%type <d> declaration
%type <mdv> multiple_declaration_variable
%type <df> declaration_function
%type <dv> declaration_variable
%type <type> type
%type <expr> expression
%type <exprVar> expr_var
%type <assignVar> assignment_variable
%type <dfs> declaration_function_statement
%type <al> arguments_list
%type <ms> multiple_statement
%type <arg> argument
%type <ss> simple_statement
%type <iss> iteration_statement
%type <sss> selection_statement
%type <ret> return
%type <stat> statement
%type <loopexpr> loop_expression
/*********/
/* TYPES */
/*********/
/************/
/* PRIORITY */
/************/
// Pour la priorité des opérateurs qui a été définie
// Voir https://c.developpez.com/cours/bernard-cassagne/node101.php#footmp10620
%left COMMA
%right RIGHT_DEC_ASSIGN LEFT_DEC_ASSIGN AND_ASSIGN OR_EXCL_ASSIGN OR_ASSIGN
%right EQUAL PLUS_ASSIGN MINUS_ASSIGN MUL_ASSIGN DIV_ASSIGN MOD_ASSIGN
%left OR_OR
%left AND_AND
%left OR
%left POW
%left EQUAL_EQUAL DIFF
%left MORE_THAN LESS_THAN_OR_EQUAL LESS_THAN MORE_THAN_OR_EQUAL
%left RIGHT_DEC LEFT_DEC
%left PLUS MINUS
%nonassoc NEG
%right MUL DIV MOD
%right NOT NOT_BIT AND
%left INCREMENT DECREMENT
/**************/
/* PARAMETERS */
/**************/
%parse-param { Genesis** g }
/***********/
/* GRAMMAR */
/***********/
%%
program
: genesis {*g = $1;}
;
genesis
: genesis declaration {$$ = $1; $$->addDeclaration($2);}
| declaration {$$ = new Genesis(); $$->addDeclaration($1);}
;
declaration
: type multiple_declaration_variable SEMICOLON
{
GlobalDeclarationVariable* dec = new GlobalDeclarationVariable($2);
$$ = dec;
$2->setType($1);
if(variableIsVoid(g,$1)) YYABORT;
if(!tryDeclareGlobalVariable(g,$1,$2)) YYABORT;
}
| declaration_function {$$ = $1;}
;
type
: VOID {$$ = new Type(VOID); currVariableType = VOID;}
| CHAR {$$ = new Type(CHAR); currVariableType = CHAR;}
| INT32 {$$ = new Type(INT32); currVariableType = INT32;}
| INT64 {$$ = new Type(INT64); currVariableType = INT64;}
;
multiple_declaration_variable
: declaration_variable {$$ = new MultipleDeclarationVariable(); $$->addDeclarationVariable($1);}
| multiple_declaration_variable COMMA declaration_variable {$$ = $1; $1->addDeclarationVariable($3);}
;
declaration_variable
: ID {$$ = new DeclarationVariable($1,false);}
| ID OPEN_HOOK INT CLOSE_HOOK {$$ = new DeclarationArrayVariable($1, $3);}
| ID EQUAL expression
{
$$ = new DeclarationInitVariable($1, $3);
int type1 = currVariableType;
int type2 = $3->getType();
if(checkArrayTypeConflitError(g,type1,type2)) YYABORT;
// Si on a pas une constante à droite
checkAssignmentConstant(type1, $3);
}
;
assignment_variable // utilisé pour affecter une valeur à une variable en dehors de son initialisation (int a; a = 3;)
: expr_var EQUAL expression {$$ = new AssignmentVariable($1,$3);if(checkArrayTypeConflitError(g,$1->getType(),$3->getType())) YYABORT; checkAssignmentConstant($1->getType(), $3);}
| expr_var MUL_ASSIGN expression {$$ = new AssignmentOperationVariable($1,$3,MUL_ASSIGN); if(checkArrayTypeConflitError(g,$1->getType(),$3->getType())) YYABORT; checkAssignmentConstant($1->getType(), $3);}
| expr_var DIV_ASSIGN expression {$$ = new AssignmentOperationVariable($1,$3,DIV_ASSIGN); if(checkArrayTypeConflitError(g,$1->getType(),$3->getType())) YYABORT; checkAssignmentConstant($1->getType(), $3);}
| expr_var MOD_ASSIGN expression {$$ = new AssignmentOperationVariable($1,$3,MOD_ASSIGN); if(checkArrayTypeConflitError(g,$1->getType(),$3->getType())) YYABORT; checkAssignmentConstant($1->getType(), $3);}
| expr_var PLUS_ASSIGN expression {$$ = new AssignmentOperationVariable($1,$3,PLUS_ASSIGN); if(checkArrayTypeConflitError(g,$1->getType(),$3->getType())) YYABORT; checkAssignmentConstant($1->getType(), $3);}
| expr_var MINUS_ASSIGN expression {$$ = new AssignmentOperationVariable($1,$3,MINUS_ASSIGN); if(checkArrayTypeConflitError(g,$1->getType(),$3->getType())) YYABORT; checkAssignmentConstant($1->getType(), $3);}
| expr_var LEFT_DEC_ASSIGN expression {$$ = new AssignmentOperationVariable($1,$3,LEFT_DEC_ASSIGN); if(checkArrayTypeConflitError(g,$1->getType(),$3->getType())) YYABORT; checkAssignmentConstant($1->getType(), $3);}
| expr_var RIGHT_DEC_ASSIGN expression {$$ = new AssignmentOperationVariable($1,$3,RIGHT_DEC_ASSIGN); if(checkArrayTypeConflitError(g,$1->getType(),$3->getType())) YYABORT; checkAssignmentConstant($1->getType(), $3);}
| expr_var AND_ASSIGN expression {$$ = new AssignmentOperationVariable($1,$3,AND_ASSIGN); if(checkArrayTypeConflitError(g,$1->getType(),$3->getType())) YYABORT; checkAssignmentConstant($1->getType(), $3);}
| expr_var OR_ASSIGN expression {$$ = new AssignmentOperationVariable($1,$3,OR_ASSIGN); if(checkArrayTypeConflitError(g,$1->getType(),$3->getType())) YYABORT; checkAssignmentConstant($1->getType(), $3);}
| expr_var OR_EXCL_ASSIGN expression {$$ = new AssignmentOperationVariable($1,$3,OR_EXCL_ASSIGN); if(checkArrayTypeConflitError(g,$1->getType(),$3->getType())) YYABORT; checkAssignmentConstant($1->getType(), $3);}
;
declaration_function
: type ID OPEN_PARENTHESIS CLOSE_PARENTHESIS declaration_function_statement
{
ArgumentList* args = new ArgumentList();
$$ = new DeclarationFunction($1, $2, args, $5);
if(!tryDefineFunction(g,$1,$2,$5->isDeclaration(), args)) YYABORT;
if(checkVariableDuplicationInFunction(g,$2,args,$5)) YYABORT;
if(checkUndeclaredFunctionErrors()) YYABORT;
popVariablesFromStack(nullptr,$5);
}
| type ID OPEN_PARENTHESIS arguments_list CLOSE_PARENTHESIS declaration_function_statement
{
$$ = new DeclarationFunction($1, $2, $4, $6);
if(!tryDefineFunction(g,$1,$2,$6->isDeclaration(),$4)) YYABORT;
if(checkVariableDuplicationInFunction(g,$2,$4,$6)) YYABORT;
popVariablesFromStack($4,$6);
}
;
declaration_function_statement
: SEMICOLON { $$ = new PureDeclarationFunctionStatement(); }
| OPEN_BRACE multiple_statement CLOSE_BRACE { $$ = new InitFunctionStatement($2); }
| OPEN_BRACE CLOSE_BRACE {$$ = new InitFunctionStatement(new MultipleStatement());}
;
argument
: type {
$$=new Argument($1);
}
| type ID {
$$=new Argument($1,$2);
if(variableIsVoid(g, $1)) YYABORT;
}
| type ID OPEN_HOOK CLOSE_HOOK {
$$=new Argument($1,$2,true);
if(variableIsVoid(g, $1)) YYABORT;
}
;
arguments_list
: argument
{
$$ = new ArgumentList(); $$->addArgument($1);
pushVariablesInStack($1);
}
| arguments_list COMMA argument
{
$$ = $1; $1->addArgument($3);
pushVariablesInStack($3);
}
;
simple_statement
: iteration_statement {$$ = $1;}
| selection_statement {$$ = $1;}
| type multiple_declaration_variable SEMICOLON
{
$$ = new BlockDeclarationVariable($2); $2->setType($1);
if(variableIsVoid(g, $1)) YYABORT;
pushVariablesInStack($1,$2);
}
| expression SEMICOLON {$$ = new ExpressionStatement($1);}
| return SEMICOLON {$$ = new ReturnStatement($1);}
| SEMICOLON {$$ = new UselessStatement();}
;
multiple_statement
: multiple_statement simple_statement {$$ = $1; $1->addStatement($2);}
| simple_statement {$$ = new MultipleStatement(); $$->addStatement($1);}
;
return
: RETURN {$$ = new Return(nullptr);}
| RETURN expression {$$ = new Return($2);}
;
iteration_statement
: WHILE OPEN_PARENTHESIS expression CLOSE_PARENTHESIS statement {$$ = new WhileLoop($3,$5);}
| WHILE OPEN_PARENTHESIS expression CLOSE_PARENTHESIS OPEN_BRACE CLOSE_BRACE {$$ = new WhileLoop($3,nullptr);}
| FOR OPEN_PARENTHESIS loop_expression SEMICOLON loop_expression SEMICOLON loop_expression CLOSE_PARENTHESIS statement {$$ = new ForLoop($3,$5,$7,$9);}
| FOR OPEN_PARENTHESIS loop_expression SEMICOLON loop_expression SEMICOLON loop_expression CLOSE_PARENTHESIS OPEN_BRACE CLOSE_BRACE {$$ = new ForLoop($3,$5,$7,nullptr);}
;
statement
: OPEN_BRACE multiple_statement CLOSE_BRACE
{
$$ = new Statement($2);
if(checkVariableDuplicationInBlock(g,$2)) YYABORT;
popStatVariablesFromStack($2);
}
| simple_statement
{
MultipleStatement* mult = new MultipleStatement();
mult->addStatement($1);
$$ = new Statement(mult);
popSimpleStatVariablesFromStack($1);
}
;
loop_expression
: expression {$$ = new LoopExpression($1);}
| {$$ = new LoopExpression(nullptr);}
;
expression
: OPEN_PARENTHESIS expression CLOSE_PARENTHESIS {$$ = $2;}
| expression COMMA expression {$$ = new BinaryOperatorExpression($1,$3,COMMA); }
| expression EQUAL_EQUAL expression {$$ = new BinaryOperatorExpression($1,$3,EQUAL_EQUAL,INT32); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression DIFF expression {$$ = new BinaryOperatorExpression($1,$3,DIFF,INT32); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression LESS_THAN expression {$$ = new BinaryOperatorExpression($1,$3,LESS_THAN,INT32); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression LESS_THAN_OR_EQUAL expression {$$ = new BinaryOperatorExpression($1,$3,LESS_THAN_OR_EQUAL,INT32); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression MORE_THAN expression {$$ = new BinaryOperatorExpression($1,$3,MORE_THAN,INT32); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression MORE_THAN_OR_EQUAL expression {$$ = new BinaryOperatorExpression($1,$3,MORE_THAN_OR_EQUAL,INT32); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression AND_AND expression {$$ = new BinaryOperatorExpression($1,$3,AND_AND,INT32); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression OR_OR expression {$$ = new BinaryOperatorExpression($1,$3,OR_OR,INT32); if(checkConflictError(g,$1,$3)) YYABORT;}
| assignment_variable {$$ = $1;}
| PLUS expression {$$ = new UnaryOperatorExpression($2,PLUS);}
| MINUS expression %prec NEG {$$ = new UnaryOperatorExpression($2,MINUS);}
| NOT_BIT expression {$$ = new UnaryOperatorExpression($2,NOT_BIT);}
| NOT expression {$$ = new UnaryOperatorExpression($2,NOT);}
| INT {$$ = new ExpressionInteger($1,INT32);}
| INCREMENT expr_var {$$ = new CrementVariable($2, true, true);}
| DECREMENT expr_var {$$ = new CrementVariable($2, false, true);}
| expr_var INCREMENT {$$ = new CrementVariable($1, true, false);}
| expr_var DECREMENT {$$ = new CrementVariable($1, false, false);}
| expr_var {$$ = $1;}
| ID OPEN_PARENTHESIS expression CLOSE_PARENTHESIS
{
if(!tryCallFunction(g, $1)) YYABORT;
$$ = new FunctionCallExpression($1, $3, getFunctionType($1));
}
| ID OPEN_PARENTHESIS CLOSE_PARENTHESIS
{
if(!tryCallFunction(g, $1)) YYABORT;
$$ = new FunctionCallExpression($1, nullptr, getFunctionType($1));
}
| expression PLUS expression {$$ = new BinaryOperatorExpression($1,$3,PLUS); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression MINUS expression {$$ = new BinaryOperatorExpression($1,$3,MINUS); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression MUL expression {$$ = new BinaryOperatorExpression($1,$3,MUL); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression DIV expression {$$ = new BinaryOperatorExpression($1,$3,DIV); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression MOD expression {$$ = new BinaryOperatorExpression($1,$3,MOD); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression AND expression {$$ = new BinaryOperatorExpression($1,$3,AND); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression OR expression {$$ = new BinaryOperatorExpression($1,$3,OR); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression POW expression {$$ = new BinaryOperatorExpression($1,$3,POW); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression LEFT_DEC expression {$$ = new BinaryOperatorExpression($1,$3,LEFT_DEC); if(checkConflictError(g,$1,$3)) YYABORT;}
| expression RIGHT_DEC expression {$$ = new BinaryOperatorExpression($1,$3,RIGHT_DEC); if(checkConflictError(g,$1,$3)) YYABORT;}
;
expr_var
: ID OPEN_HOOK expression CLOSE_HOOK
{
if(!checkVariableExist(g,$1)) YYABORT;
if(!isArrayType(getVariableType($1)))
{
yyerror(g, ("tentative d'utilisation de l'opérateur indice de tableau sur la variable non-tableau "+std::string($1)+".").c_str());
YYABORT;
}
$$ = new ExpressionArrayVariable($1, $3, arrayToPrimitiveType(getVariableType($1)));
}
| ID
{
if(!checkVariableExist(g,$1)) YYABORT;
$$ = new ExpressionVariable($1, getVariableType($1));
}
;
selection_statement
: IF OPEN_PARENTHESIS expression CLOSE_PARENTHESIS statement ELSE statement {$$ = new SelectionStatement($3,$5,$7);}
| IF OPEN_PARENTHESIS expression CLOSE_PARENTHESIS statement {$$ = new SelectionStatement($3,$5,nullptr);}
| IF OPEN_PARENTHESIS expression CLOSE_PARENTHESIS OPEN_BRACE CLOSE_BRACE {$$ = new SelectionStatement($3,nullptr,nullptr);}
;
%%
/***********************/
/* PROGRAMME PRINCIPAL */
/***********************/
bool variableIsVoid(Genesis** g, Type* type)
{
if (type->getType() == VOID)
{
yyerror(g, "Une variable ne peut pas être de type void.");
return true;
}
return false;
}
bool checkUndeclaredFunctionErrors()
{
// On retire chaque fonction définie du set des fonctions appellées
for(int i=0;i<functions.size();++i)
{
FunctionContainer* currFunc = functions[i];
auto it = undefinedFunctionCall.find(std::string(currFunc->name));
if (it != undefinedFunctionCall.end())
{
undefinedFunctionCall.erase(std::string(currFunc->name));
if(currFunc->declaration)
{
calledFunctions.insert(std::make_pair(std::string(currFunc->name),it->second));
}
else
{
delete(it->second);
}
}
}
int error = false;
for (auto& pair: undefinedFunctionCall)
{
FunctionCall* func = pair.second;
std::cout << filename << ":" << func->line << ":" << func->column <<" - erreur : "
<< "La fonction " << std::string(func->functionName) << " n'a pas été déclarée." << std::endl;
delete(func);
error = true;
}
return error;
}
bool checkUndefinedFunctionErrors()
{
// On retire chaque fonction définie du set des fonctions appellées
for(int i=0;i<functions.size();++i)
{
FunctionContainer* currFunc = functions[i];
if(!currFunc->declaration)
{
auto it = calledFunctions.find(std::string(currFunc->name));
if (it != calledFunctions.end())
{
delete(it->second);
calledFunctions.erase(std::string(currFunc->name));
}
}
}
int error = false;
for (auto& pair: calledFunctions)
{
FunctionCall* func = pair.second;
std::cout << filename << ":" << func->line << ":" << func->column <<" - erreur : "
<< "Référence indéfinie vers la fonction " << std::string(func->functionName) << "." << std::endl;
delete(func);
error = true;
}
return error;
}
bool tryCallFunction(Genesis** g, char* functionName)
{
int state=0;
if(strcmp(functionName, "putchar")==0
|| strcmp(functionName, "getchar")==0)
{
return true;
}
for(int i=0;i<functions.size();++i)
{
FunctionContainer* currFunc = functions[i];
// 0 = fonction n'existe pas. 1 = seulement le prototype. 2 = correct
if(strcmp(functionName, currFunc->name)==0)
{
if(currFunc->declaration)
{
state = 1;
}
else
{
state = 2;
break;
}
}
}
if(state == 0)
{
// Ajouter à la liste des fonctions non-définies
// (à checker dès qu'on sort de la fonction)
FunctionCall* call = new FunctionCall(functionName, yylineno, column);
undefinedFunctionCall.insert(std::make_pair(std::string(functionName),call));
}
if(state == 1)
{
// Ajouter à la liste des fonctions appellées, mais pas définies
// (à checker à la fin si on a bien défini le corps de la fonction)
FunctionCall* call = new FunctionCall(functionName, yylineno, column);
calledFunctions.insert(std::make_pair(std::string(functionName),call));
}
return true;
}
bool tryDeclareGlobalVariable(Genesis** g, Type* type, MultipleDeclarationVariable* multDecl)
{
for(int i=0;i<multDecl->countDeclaration();++i)
{
DeclarationVariable* decVar = (*multDecl)[i];
VariableContainer* var = new VariableContainer(decVar->getId(), type->getType());
for(int j=0;j<globalVariables.size();j++)
{
if(strcmp(globalVariables[i]->name,var->name)==0)
{
yyerror(g, ("la variable globale "+ std::string(var->name)+" a deja ete declaree.").c_str());
delete var;
return false;
}
}
if(!decVar->isDeclaration())
{
DeclarationInitVariable* initVar = (DeclarationInitVariable*)decVar;
if(initVar->getExpr()->getExpressionType() != EXPRESSION_INTEGER)
{
yyerror(g, "Impossible d'assigner une expression non-constante à une variable globale.");
delete var;
return false;
}
}
globalVariables.push_back(var);
}
return true;
}
bool tryDefineFunction(Genesis** g, Type* type, char* name, bool isDeclaration, ArgumentList* args)
{
FunctionContainer* func;
func = new FunctionContainer(name, type->getType(), isDeclaration, args);
for(int i=0;i<functions.size();++i)
{
FunctionContainer* currFunc = functions[i];
if(strcmp(func->name, currFunc->name)==0)
{
// Check si le type de retour est identique
if(func->type != currFunc->type)
{
yyerror(g, ("La fonction "+std::string(func->name)+" a déjà été déclarée avec un type de retour différent.").c_str());
delete func;
return false;
}
// Check si les paramètres d'appel sont identiques
if(func->args->countArguments() != currFunc->args->countArguments())
{
yyerror(g, ("La fonction "+std::string(func->name)+" a déjà été déclarée avec un nombre de paramètres différent.").c_str());
delete func;
return false;
}
for(int j=0;j<func->args->countArguments();++j)
{
int type1 = (*(func->args))[j]->getType()->getType();
int type2 = (*(currFunc->args))[j]->getType()->getType();
if(type1 != type2)
{
yyerror(g, ("La fonction "+std::string(func->name)+" a déjà été déclarée avec des paramètres différents.").c_str());
yyerror(g, (std::string("(Argument n°")+std::to_string(j)+", type "+getNameOfType(type1)+" au lieu de "+getNameOfType(type2)+".").c_str());
delete func;
return false;
}
}
}
if(strcmp(func->name, currFunc->name)==0 && !(func->declaration) && !(currFunc->declaration))
{
yyerror(g, ("La fonction "+std::string(func->name)+" a déjà été définie.").c_str());
delete func;
return false;
}
}
functions.push_back(func);
return true;
}
bool checkVariableDuplicationInFunction(Genesis** g, char* functionName, ArgumentList* args, DeclarationFunctionStatement* declFunc)
{
std::vector<VariableContainer*> variables;
// Test doublons au sein des paramètres de la fonction
for(int i=0;i<args->countArguments();++i)
{
Argument* arg = (*args)[i];
if(arg->getName() == nullptr)
{
continue;
}
VariableContainer* var = new VariableContainer(arg->getName(), arg->getType()->getType());
for(int j=0;j<variables.size();++j)
{
VariableContainer* currVar = variables[j];
if(strcmp(var->name, currVar->name) == 0)
{
yyerror(g, ("La fonction "+std::string(functionName)+" contient plusieurs paramètres nommés "+std::string(var->name)).c_str());
delete var;
return true;
}
}
variables.push_back(var);
}
// Si on dispose du corps de la fonction
if(!declFunc->isDeclaration())
{
InitFunctionStatement* funcBody = (InitFunctionStatement*)declFunc;
for(int i=0;i<funcBody->countStatements();++i)
{
SimpleStatement* stat = (*funcBody)[i];
if(stat->getType() == BLOCK_DECLARATION_VARIABLE)
{
BlockDeclarationVariable* blockDeclVar = (BlockDeclarationVariable*) stat;
MultipleDeclarationVariable* multDecl = blockDeclVar->getMultipleDeclarationVariable();
for(int j=0;j<multDecl->countDeclaration();++j)
{
DeclarationVariable* decVar = (*multDecl)[j];
VariableContainer* var = new VariableContainer(decVar->getId(), multDecl->getType()->getType());
// Regarder si la variable existe déjà
for(int k=0;k<variables.size();++k)
{
VariableContainer* currVar = variables[k];
if(strcmp(var->name, currVar->name) == 0)
{
yyerror(g, ("La fonction "+std::string(functionName)+" contient plusieurs variables nommé "+std::string(var->name)+" dans la même portée.").c_str());
delete var;
return true;
}
}
variables.push_back(var);
}
}
}
}
return false;
}
bool checkVariableDuplicationInBlock(Genesis** g, MultipleStatement* multStat)
{
std::vector<VariableContainer*> variables;
for(int i=0;i<multStat->countStatements();++i)
{
SimpleStatement* stat = (*multStat)[i];
if(stat->getType() == BLOCK_DECLARATION_VARIABLE)
{
BlockDeclarationVariable* blockDeclVar = (BlockDeclarationVariable*) stat;
MultipleDeclarationVariable* multDecl = blockDeclVar->getMultipleDeclarationVariable();
for(int j=0;j<multDecl->countDeclaration();++j)
{
DeclarationVariable* decVar = (*multDecl)[j];
VariableContainer* var = new VariableContainer(decVar->getId(), multDecl->getType()->getType());
// Regarder si la variable existe déjà
for(int k=0;k<variables.size();++k)
{
VariableContainer* currVar = variables[k];
if(strcmp(var->name, currVar->name) == 0)
{
yyerror(g, ("Plusieurs variables nommé "+std::string(var->name)+" dans la même portée.").c_str());
delete var;
return true;
}
}
variables.push_back(var);
}
}
}
return false;
}
int getFunctionType(char* name)
{
if(strcmp(name,"putchar")==0)
{
return INT32;
}
if(strcmp(name,"getchar")==0)
{
return INT32;
}
for(int i=0;i<functions.size();++i)
{
FunctionContainer* func = functions[i];
if(strcmp(name,func->name)==0)
{
return func->type;
}
}
return INT32;
}
int getVariableType(char* name)
{
// Recherche dans les variables locales
for(int i=currentVars.size()-1;i>=0;--i)
{
VariableContainer* var = currentVars[i];
if(strcmp(name,var->name)==0)
{
return var->type;
}
}
// Recherche dans les variables globales
for(int i=0;i<globalVariables.size();++i)
{
VariableContainer* var = globalVariables[i];
if(strcmp(name,var->name)==0)
{
return var->type;
}
}
return INT32;
}
void pushVariablesInStack(Type* type, MultipleDeclarationVariable* multDecl)
{
int typeVar = type->getType();
for(int i=0;i<multDecl->countDeclaration();++i)
{
DeclarationVariable* decVar = (*multDecl)[i];
if(decVar->isArray())
{
typeVar = primitiveToArrayType(typeVar);
}
VariableContainer* var = new VariableContainer(decVar->getId(), typeVar);
currentVars.push_back(var);
}
}
bool checkVariableExist(Genesis** g, char* name)
{
for(int i=0;i<currentVars.size();++i)
{
if(strcmp(name,currentVars[i]->name)==0)
{
return true;
}
}
for(int i=0;i<globalVariables.size();++i)
{
if(strcmp(name,globalVariables[i]->name)==0)
{
return true;
}
}
yyerror(g, ("La variable "+std::string(name)+" est utilisée mais jamais définie.").c_str());
return false;
}
void pushVariablesInStack(Argument* arg)
{
int typeVar = arg->getType()->getType();
if(arg->isArray())
{
typeVar = primitiveToArrayType(typeVar);
}
VariableContainer* var = new VariableContainer(arg->getName(), typeVar);
currentVars.push_back(var);
}
void popVariablesFromStack(ArgumentList* args, DeclarationFunctionStatement* stat)
{
int countVars = 0;
if(args != nullptr)
{
countVars += args->countArguments();
}
// Si on dispose du corps de la fonction
if(!stat->isDeclaration())
{
InitFunctionStatement* funcBody = (InitFunctionStatement*)stat;
for(int i=0;i<funcBody->countStatements();++i)
{
SimpleStatement* stat = (*funcBody)[i];
if(stat->getType() == BLOCK_DECLARATION_VARIABLE)
{
BlockDeclarationVariable* blockDeclVar = (BlockDeclarationVariable*) stat;
MultipleDeclarationVariable* multDecl = blockDeclVar->getMultipleDeclarationVariable();
countVars += multDecl->countDeclaration();
}
}
}
for(int i=0;i<countVars;++i)
{
VariableContainer* var = currentVars.back();
currentVars.pop_back();
delete var;
}
}
void popSimpleStatVariablesFromStack(SimpleStatement* stat)
{
if(stat->getType() == BLOCK_DECLARATION_VARIABLE)
{
BlockDeclarationVariable* blockDeclVar = (BlockDeclarationVariable*) stat;
MultipleDeclarationVariable* multDecl = blockDeclVar->getMultipleDeclarationVariable();
int countVars = multDecl->countDeclaration();
for(int i=0;i<countVars;++i)
{
VariableContainer* var = currentVars.back();
currentVars.pop_back();
delete var;
}
}
}
void popStatVariablesFromStack(MultipleStatement* stats)
{
int countVars = 0;
for(int i=0;i<stats->countStatements();++i)
{
SimpleStatement* stat = (*stats)[i];
if(stat->getType() == BLOCK_DECLARATION_VARIABLE)
{
BlockDeclarationVariable* blockDeclVar = (BlockDeclarationVariable*) stat;
MultipleDeclarationVariable* multDecl = blockDeclVar->getMultipleDeclarationVariable();
countVars += multDecl->countDeclaration();
}
}
for(int i=0;i<countVars;++i)
{
VariableContainer* var = currentVars.back();
currentVars.pop_back();
delete var;
}
}
int primitiveToArrayType(int type)
{
switch(type)