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Fixed some of the spacing and added a harder test t#36

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This commit is contained in:
Meyer Simon
2025-03-05 15:31:01 -05:00
parent f819a68ef7
commit f99dfc9b54
1 changed files with 39 additions and 81 deletions
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92
src/grammar.y
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@ -1,7 +1,3 @@
/* Syntax Analyzer with Bison (3.8.1) */
/* (referenced Bison manual for file boilerplate [3.1]) */
// Prologue
%{
#include <stdio.h>
#include "../src/symbol_table.c"
@ -22,7 +18,7 @@
int integ;
char * words;
}
//precedence order
//need subtraction only here
%type <words> id_or_types
%type <words> types
@ -72,6 +68,8 @@
%token RESERVE 613
%token RELEASE 614
%token COMMENT 700
//precedence order
%precedence RESERVE RELEASE
%precedence DOT
%precedence UMINUS
@ -84,11 +82,11 @@
%left OR
%left ASSIGN
%%
program:
prototype_or_definition_list;
prototype_or_definition_list
;
prototype_or_definition_list:
prototype prototype_or_definition_list
@ -96,86 +94,55 @@ prototype_or_definition_list:
| prototype
| definition
;
prototype:
L_PAREN EXTERNAL R_PAREN FUNCTION ID COLON ID;
definition:
TYPE ID COLON dblock
| TYPE ID COLON constant ARROW ID
//| TYPE ID COLON types ARROW ID
| function_declaration
| TYPE ID COLON id_or_types ARROW id_or_types
| ID parameter ASSIGN sblock
;
function_declaration:
FUNCTION { printf("found a function def\n"); }ID COLON ID
| EXTERNAL { printf("found an external function def\n"); }FUNCTION ID COLON ID
FUNCTION ID COLON ID
| EXTERNAL FUNCTION ID COLON ID
;
parameter:
L_PAREN { printf("found a param def\n"); } ID R_PAREN
| AS{ printf("found a param_as_list def\n"); } L_PAREN idlist R_PAREN
L_PAREN ID R_PAREN
| AS L_PAREN idlist R_PAREN
;
idlist:
ID COMMA idlist
|ID
| ID
;
sblock:
L_BRACE {printf("open brace\n"); cur = CreateScope(cur,2,2);} statement_list {printf("close brace\n"); cur = getParent(cur);} R_BRACE
| L_BRACE {printf("open brace\n"); cur = CreateScope(cur,2,2);} dblock statement_list {printf("close brace\n"); cur = getParent(cur);} R_BRACE
L_BRACE {cur = CreateScope(cur,2,2);} statement_list {cur = getParent(cur);} R_BRACE
| L_BRACE {cur = CreateScope(cur,2,2);} dblock statement_list {cur = getParent(cur);} R_BRACE
;
dblock:
L_BRACKET declaration_list R_BRACKET;
declaration_list:
declaration
{printf(
"found a decleration of form dec;dec_list\n");
//CreateEntry(cur,cur_type,cur_value);
}
SEMI_COLON declaration_list
declaration SEMI_COLON declaration_list
| declaration
{printf(
"found a decleration of form dec\n");
//CreateEntry(cur,cur_type,cur_value);
}
;
declaration:
id_or_types COLON ID {
CreateEntry(cur,$1,$3);
// printf("declaration rule encountered");
// if(cur_value != NULL){
// char* delete1 = cur_value;
// printf("delete1 var assigned to cur_value");
// free(delete1);
// printf("delete1 var freed");
// }
// if(cur_type != NULL){
// char* delete2 = cur_type;
// free(delete2);}
// int len = strlen($1);
// printf("length determined");
// cur_value = malloc(len + 1);
// printf("space allocated");
// strcpy(cur_value, $1);
// printf("string copied over");
// len = strlen($3);
// cur_type = malloc(len + 1);
// strcpy(cur_type, $3);
// printf("value var is %s type var is %s\n",cur_value,cur_type);
}
// | types COLON ID
id_or_types COLON ID {CreateEntry(cur,$1,$3); }
;
id_or_types:
ID
| types
;
statement_list:
compound_statement statement_list
| compound_statement
@ -184,20 +151,14 @@ statement_list:
;
compound_statement:
WHILE {printf("found an while statment\n"); } L_PAREN expression R_PAREN sblock
| IF {printf("found an if statment\n"); }L_PAREN expression R_PAREN THEN sblock ELSE sblock
WHILE L_PAREN expression R_PAREN sblock
| IF L_PAREN expression R_PAREN THEN sblock ELSE sblock
| sblock
;
// Ref Compilers Principles, Techniques, & Tools
simple_statement:
assignable ASSIGN {printf("found an assignment statment\n"); } expression
// I think that we need to add memOp stuff here | assignable ASSIGN expression {printf("found an assignment statment\n"); }
| RETURN {printf("found an return statment\n"); } expression
assignable ASSIGN expression
| RETURN expression
;
assignable:
@ -223,16 +184,13 @@ expression:
| expression LESS_THAN expression
| expression EQUAL_TO expression
| assignable
//| constant binaryOperator expression
//| ID binaryOperator expression
| L_PAREN expression R_PAREN
| memOp assignable
;
ablock:
L_PAREN argument_list R_PAREN;
L_PAREN argument_list R_PAREN
;
argument_list:
expression COMMA argument_list
@ -262,7 +220,7 @@ types:
| T_CHARACTER
| T_BOOLEAN
;
//
%%
void yyerror(const char *err) {