Meta4

generate.h

@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include "ast.h"
+#include "symbol_table.h"
+
+
+void generate_code(node_t *ast);
+void generate_code_program(node_t *ast);
+void generate_code_declaration(node_t *ast);
+void generate_code_func_declaration(node_t *ast);
+void generate_code_func_definition(node_t *ast);
+void generate_code_return(node_t *ast);
+void generate_code_assign_operator(node_t *ast);
+void generate_code_arithmetic_operator(node_t *ast);
+void generate_code_unary_operator(node_t *ast);
+void generate_code_call(node_t *ast);
+void generate_code_terminal(node_t *ast);
+
+void print_param_types(param_type *params);
+void print_param_types_and_ids(node_t *param_list);
+void declare_param_declaration(node_t *param_list);
+
+char *get_llvm_type(char *type_name);

run.sh

@@ -6,6 +6,6 @@
 lex $1.l
 # o -v ou -t gera um ficheiro output com a tabela de parsing
 yacc -d -v $1.y
-cc -Wall -Wno-unused-function -o $1 y.tab.c lex.yy.c ast.c symbol_table.c semantics.c 
-./$1 -s < $2
-
+cc -Wall -Wno-unused-function -o $1 y.tab.c lex.yy.c ast.c symbol_table.c semantics.c generate.c
+./$1 < $2
+zip uccompiler.zip uccompiler.l uccompiler.y y.tab.c y.tab.h ast.c ast.h semantics.c semantics.h symbol_table.c symbol_table.h generate.c generate.h

semantics.c

@@ -135,10 +135,10 @@ void check_declaration(node_t *declaration) {
       score_aux2 = 3;
     }
     if (strcmp(aux_name, "short") == 0) {
-      score_aux = 2;
+      score_aux = 3;
     }
     if (strcmp(aux2_name, "short") == 0) {
-      score_aux2 = 2;
+      score_aux2 = 3;
     }
     if (strcmp(aux_name, "char") == 0) {
       score_aux = 3;
@@ -393,7 +393,6 @@ void check_param_list(node_t *func_node, node_t *param_list, symbol *func, int i
         new_symbol->is_param = 1;
       }
     }
-
     else {
       insert_type(param_type, func);
     }

symbol_table.c

@@ -182,3 +182,54 @@ void show_tables() {
     aux = aux->next;
   }
 }
+
+void destroy_param_types(param_type *current) {
+  if (current == NULL) {
+    return;
+  }
+
+  if (current->name != NULL) {
+    free(current->name);
+  }
+
+  destroy_param_types(current->next);
+
+  free(current);
+}
+
+void destroy_symbols(symbol *current) {
+  if (current == NULL) {
+    return;
+  }
+
+  if (current->name != NULL) {
+    free(current->name);
+  }
+  if (current->type != NULL) {
+    free(current->type);
+  }
+  if (current->param != NULL) {
+    destroy_param_types(current->param);
+  }
+
+  destroy_symbols(current->next);
+
+  free(current);
+}
+
+void destroy_tables(table *current) {
+  if (current == NULL) {
+    return;
+  }
+
+  if (current->name != NULL) {
+    free(current->name);
+  }
+  if(current->symbol != NULL) {
+    destroy_symbols(current->symbol);
+  }
+
+  destroy_tables(current->next);
+
+  free(current);
+}

symbol_table.h

@@ -49,6 +49,10 @@ void show_symbol(symbol *symbol);
 void show_table(table *table);
 void show_tables();
 
+void destroy_param_types(param_type *param);
+void destroy_symbols(symbol *symbols);
+void destroy_tables();
+
 table *tables;
 table *current;
 

uccompiler.l

@@ -6,6 +6,7 @@
   #include "ast.h"
   #include "symbol_table.h"
   #include "semantics.h"
+  #include "generate.h"
   int line = 1;
   int col = 1;
   int beginning_line;
@@ -127,6 +128,11 @@ CHRLIT_UNT \'({ANYCHAR}|{ESCAPE})*(\\)*{ANYCHAR}*
 %%
 int main(int argc, char *argv[]) {
   if (argc > 1) {
+    if (strcmp(argv[1], "-1") == 0) {
+      print_tokens = 0;
+      yyparse();
+      yylex();
+    }
     if (strcmp(argv[1], "-l") == 0) {
       print_tokens = 1;
       yyparse();
@@ -146,6 +152,18 @@ int main(int argc, char *argv[]) {
         destroy_ast(ast);
       }
     }
+    else if (strcmp(argv[1], "-3") == 0) {
+      print_tokens = 0;
+      yyparse();
+
+      if(errors == 0) {
+        current = create_table("Global", 1);
+        current->print = 1;
+        insert_default_functions(current);
+        check_program(ast);
+        destroy_ast(ast);
+      }
+    }
     else if (strcmp(argv[1], "-s") == 0) {
       print_tokens = 0;
       yyparse();
@@ -157,13 +175,23 @@ int main(int argc, char *argv[]) {
         check_program(ast);
         show_tables();
         print_ast(ast, 0);
+        destroy_tables(tables);
         destroy_ast(ast);
       }
     }
   }
   else {
     print_tokens = 0;
     yyparse();
+    if(errors == 0) {
+      current = create_table("Global", 1);
+      current->print = 1;
+      insert_default_functions(current);
+      check_program(ast);
+      generate_code(ast);
+      destroy_tables(tables);
+      destroy_ast(ast);
+    }
   }
   return 0;
 }
@@ -177,3 +205,4 @@ void yyerror (char *s) {
   int aux_col = col - strlen(yytext);
   printf("Line %d, col %d: %s: %s\n", line, aux_col, s, yytext);
 }
+