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Added multiply,divide-assignment operators #42

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Added multiply,divide-assignment operators #42

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eb63643
multiplication-division assign operators added
Krishna-13-cyber Apr 27, 2022
e085560
Added testcase
Krishna-13-cyber May 15, 2022
4958afe
minor fix
Krishna-13-cyber May 19, 2022
7ddfed4
fixed the required changes and removed redundant
Krishna-13-cyber Jun 30, 2022
cdd2de6
Updated the multiple-divide assignment operators by fixing the known …
Krishna-13-cyber Aug 11, 2022
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28 changes: 28 additions & 0 deletions include/ast.h
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,8 @@
#define AST_NODE_DECLARATION 6
#define AST_NODE_ARRAY_DECLARATION 2000
#define AST_NODE_ASSIGNMENT 7
#define AST_NODE_MUL_ASSIGNMENT 6007
#define AST_NODE_DIV_ASSIGNMENT 6008
#define AST_NODE_ARRAY_ASSIGNMENT 2001
#define AST_NODE_ARRAY_ACCESS 2002
#define AST_NODE_ARITHMETIC_EXP 8
Expand Down Expand Up @@ -59,6 +61,8 @@
#define AST_OPR_LGL_OR 43 // or

#define AST_OPR_ASSIGNMENT 44 // :=
#define AST_OPR_MUL_ASSIGNMENT 6009 // *=
#define AST_OPR_DIV_ASSIGNMENT 6010 // /=

#define AST_CONST_INT 45 // INT CONSTANT
#define AST_CONST_BOOL 46 // BOOL CONSTANT
Expand Down Expand Up @@ -100,6 +104,8 @@ struct ast_node_compound_statement;
struct ast_node_declaration;
struct ast_node_array_declaration;
struct ast_node_assignment;
struct ast_node_mul_assignment;
struct ast_node_div_assignment;
struct ast_node_array_assignment;
struct ast_node_array_access;
struct ast_node_expression;
Expand All @@ -125,6 +131,8 @@ typedef struct ast_node_compound_statement ast_node_compound_statement;
typedef struct ast_node_declaration ast_node_declaration;
typedef struct ast_node_array_declaration ast_node_array_declaration;
typedef struct ast_node_assignment ast_node_assignment;
typedef struct ast_node_mul_assignment ast_node_mul_assignment;
typedef struct ast_node_div_assignment ast_node_div_assignment;
typedef struct ast_node_array_assignment ast_node_array_assignment;
typedef struct ast_node_array_access ast_node_array_access;
typedef struct ast_node_expression ast_node_expression;
Expand Down Expand Up @@ -160,6 +168,8 @@ struct ast_node
ast_node_declaration *declaration;
ast_node_array_declaration *array_declaration;
ast_node_assignment *assignment;
ast_node_mul_assignment *mul_assignment;
ast_node_div_assignment *div_assignment;
ast_node_array_assignment *array_assignment;
ast_node_conditional_if *if_else;
ast_node_loop_for *loop_for;
Expand Down Expand Up @@ -205,6 +215,22 @@ struct ast_node_array_declaration
ast_node_expression *expression;
};

struct ast_node_mul_assignment
{
int node_type;

sym_ptr symbol_entry;
ast_node_expression *expression;
};

struct ast_node_div_assignment
{
int node_type;

sym_ptr symbol_entry;
ast_node_expression *expression;
};

struct ast_node_array_assignment
{
int node_type;
Expand Down Expand Up @@ -363,6 +389,8 @@ ast_node_compound_statement *add_compound_statement_node(ast_node_compound_state
ast_node_declaration *create_declaration_node(sym_ptr symbol, ast_node_expression *exp);
ast_node_array_declaration *create_array_declaration_node(sym_ptr symbol, ast_node_expression *size, char *initial_string);
ast_node_assignment *create_assignment_node(sym_ptr symbol, ast_node_expression *exp);
ast_node_mul_assignment *create_mul_assignment_node(sym_ptr symbol, ast_node_expression *exp);
ast_node_div_assignment *create_div_assignment_node(sym_ptr symbol, ast_node_expression *exp);
ast_node_array_assignment *create_array_assignment_node(sym_ptr symbol, ast_node_expression *index, ast_node_expression *exp);
ast_node_array_access *create_array_access_node(sym_ptr symbol, ast_node_expression *index);
ast_node_expression *create_expression_node(int node_type, int opt, int value, ast_node *left, ast_node *right);
Expand Down
4 changes: 4 additions & 0 deletions include/code_printer.h
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,8 @@
#define _OPR_LGL_OR " | "

#define _OPR_ASSIGNMENT " = "
#define _OPR_MUL_ASSIGNMENT " *= "
#define _OPR_DIV_ASSIGNMENT " /= "

#define _DT_INT_ "int"
#define _DT_VOID_ "void"
Expand All @@ -54,6 +56,8 @@ void ast_compound_statement_printer(ast_node_compound_statement *cmpd_stmt, FILE
void ast_declaration_printer(ast_node_declaration *decl, FILE* handle);
void ast_array_declaration_printer(ast_node_array_declaration *decl, FILE* handle);
void ast_assignment_printer(ast_node_assignment *assg, FILE* handle);
void ast_mul_assignment_printer(ast_node_mul_assignment *mul_assg, FILE* handle);
void ast_div_assignment_printer(ast_node_div_assignment *div_assg, FILE* handle);
void ast_array_assignment_printer(ast_node_array_assignment *assign, FILE *handle);
void ast_array_access_printer(ast_node_array_access *access, FILE* handle);
void ast_expression_printer(ast_node_expression *node, FILE* handle);
Expand Down
38 changes: 38 additions & 0 deletions src/ast.c
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,14 @@ ast_node_statements *create_statement_node(int node_type, void *child)
stmt->child_nodes.assignment = child;
break;

case AST_NODE_MUL_ASSIGNMENT:
stmt->child_nodes.mul_assignment = child;
break;

case AST_NODE_DIV_ASSIGNMENT:
stmt->child_nodes.div_assignment = child;
break;

case AST_NODE_ARRAY_ASSIGNMENT:
stmt->child_nodes.array_assignment = child;
break;
Expand Down Expand Up @@ -144,6 +152,28 @@ ast_node_assignment *create_assignment_node(sym_ptr symbol, ast_node_expression
return assgn;
}

ast_node_mul_assignment *create_mul_assignment_node(sym_ptr symbol, ast_node_expression *exp)
{
ast_node_mul_assignment *mul_assgn = (ast_node_mul_assignment*)malloc(sizeof(ast_node_mul_assignment));

mul_assgn->node_type = AST_NODE_MUL_ASSIGNMENT;
mul_assgn->expression = exp;
mul_assgn->symbol_entry = symbol;

return mul_assgn;
}

ast_node_div_assignment *create_div_assignment_node(sym_ptr symbol, ast_node_expression *exp)
{
ast_node_div_assignment *div_assgn = (ast_node_div_assignment*)malloc(sizeof(ast_node_div_assignment));

div_assgn->node_type = AST_NODE_DIV_ASSIGNMENT;
div_assgn->expression = exp;
div_assgn->symbol_entry = symbol;

return div_assgn;
}

ast_node_array_assignment *create_array_assignment_node(sym_ptr symbol, ast_node_expression *index, ast_node_expression *exp)
{
ast_node_array_assignment *assign = (ast_node_array_assignment*)malloc(sizeof(ast_node_array_assignment));
Expand Down Expand Up @@ -601,6 +631,14 @@ void ast_node_type(int node_type)
case AST_NODE_ASSIGNMENT:
printf("ast assignment");
break;

case AST_NODE_DIV_ASSIGNMENT:
printf("ast division assignment");
break;

case AST_NODE_MUL_ASSIGNMENT:
printf("ast multiplication assignment");
break;

case AST_NODE_ARRAY_ASSIGNMENT:
printf("ast array assignment");
Expand Down
40 changes: 39 additions & 1 deletion src/code_printer.c
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,14 @@ void ast_compound_statement_printer(ast_node_compound_statement *cmpd_stmt, FILE
ast_assignment_printer(((ast_node_statements*)temp)->child_nodes.assignment, handle);
break;

case AST_NODE_MUL_ASSIGNMENT:
ast_mul_assignment_printer(((ast_node_statements*)temp)->child_nodes.mul_assignment, handle);
break;

case AST_NODE_DIV_ASSIGNMENT:
ast_div_assignment_printer(((ast_node_statements*)temp)->child_nodes.div_assignment, handle);
break;

case AST_NODE_ARRAY_ASSIGNMENT:
ast_array_assignment_printer(((ast_node_statements*)temp)->child_nodes.array_assignment, handle);
break;
Expand Down Expand Up @@ -174,6 +182,28 @@ void ast_assignment_printer(ast_node_assignment *assg, FILE* handle)

}

void ast_mul_assignment_printer(ast_node_mul_assignment *assg, FILE* handle)
{
if (assg != NULL && handle != NULL)
{
fprintf(handle, "\t%s *= ", assg->symbol_entry->identifier);
ast_expression_printer(assg->expression, handle);
fprintf(handle, "%s", ";\n");
}

}

void ast_div_assignment_printer(ast_node_div_assignment *assg, FILE* handle)
{
if (assg != NULL && handle != NULL)
{
fprintf(handle, "\t%s /= ", assg->symbol_entry->identifier);
ast_expression_printer(assg->expression, handle);
fprintf(handle, "%s", ";\n");
}

}

void ast_array_assignment_printer(ast_node_array_assignment *assign, FILE* handle)
{
if (assign != NULL && handle != NULL)
Expand Down Expand Up @@ -696,7 +726,15 @@ int code_printer(ast_node* ast, int pru_id, int test)
case AST_NODE_ASSIGNMENT:
ast_assignment_printer(((ast_node_statements*)temp)->child_nodes.assignment, handle);
break;


case AST_NODE_MUL_ASSIGNMENT:
ast_mul_assignment_printer(((ast_node_statements*)temp)->child_nodes.mul_assignment, handle);
break;

case AST_NODE_DIV_ASSIGNMENT:
ast_div_assignment_printer(((ast_node_statements*)temp)->child_nodes.div_assignment, handle);
break;

case AST_NODE_ARRAY_ASSIGNMENT:
ast_array_assignment_printer(((ast_node_statements*)temp)->child_nodes.array_assignment, handle);
break;
Expand Down
10 changes: 10 additions & 0 deletions src/lexer.l
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,8 @@ bitwise_operators ("~"|"&"|"|"|">>"|"<<")
logical_operators ("not"|"and"|"or")
function ("return"|"void"|"def")
assignment_operator ([:][=])
mul_assignment_operator ([*][=])
div_assignment_operator ([/][=])
io ("digital_read"|"digital_write"|"delay"|"pwm"|"start_counter"|"stop_counter"|"read_counter"|"init_message_channel"|"receive_message"|"send_message"|"send_int"|"send_char"|"send_bool"|"send_ints"|"send_chars"|"send_bools")
print ("print"|"println")
identifier ([a-zA-Z_][a-zA-Z0-9_]*)
Expand Down Expand Up @@ -323,6 +325,14 @@ comma ([,])
return OPR_ASSIGNMENT;
}

{mul_assignment_operator} {
return OPR_MUL_ASSIGNMENT;
}

{div_assignment_operator} {
return OPR_DIV_ASSIGNMENT;
}

{io} {
if (!strcmp(yytext, "digital_write"))
{
Expand Down
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