From 881ae40f989f649926a876a54c9a096c03cf9009 Mon Sep 17 00:00:00 2001
From: Iván Ávalos <avalos@disroot.org>
Date: Fri, 25 Nov 2022 23:14:48 -0600
Subject: El parser ahora serializa el AST en un archivo

---
 .gitignore           |  1 +
 compilador/main.py   | 14 ++++++++++----
 compilador/parser.py |  8 +++++++-
 3 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/.gitignore b/.gitignore
index c2d12e7..4b94b69 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@ __pycache__/
 *.tab
 *.gv
 *.gv.pdf
+*.ast
diff --git a/compilador/main.py b/compilador/main.py
index d3f7444..d419286 100644
--- a/compilador/main.py
+++ b/compilador/main.py
@@ -27,17 +27,18 @@ class Main:
     input_file = None
     output_file = None
     output_table = False
+    output_ast = False
     step = None
 
     def print_help (self, arg0):
-        print("Uso: % s -i entrada.es -o salida.es [-t]" % arg0)
+        print("Uso: % s -i entrada.es -o salida.es [-t] [-a]" % arg0)
         print("     % s -i entrada.es -o salida.es [-l|-p|-s]" % arg0)
         print("     % s -h" % arg0)
 
     def main(self, argv):
         try:
-            opts, args = getopt.getopt(argv[1:], "hi:o:lpst", [
-                "input=", "output=", "lex", "parse", "semantic", "table"
+            opts, args = getopt.getopt(argv[1:], "hi:o:lpsta", [
+                "input=", "output=", "lex", "parse", "semantic", "table", "ast"
             ])
         except getopt.GetoptError as err:
             print(err)
@@ -53,6 +54,8 @@ class Main:
                 self.output_file = a
             elif o in ("-t", "--table"):
                 self.output_table = True
+            elif o in ("-a", "--ast"):
+                self.output_ast = True
             elif o in ("-l", "--lex"):
                 self.step = Step.LEXICO
             elif o in ("-p", "--parse"):
@@ -64,7 +67,9 @@ class Main:
 
         if self.input_file and self.output_file:
             table_file = self.input_file + '.tab'
+            ast_file = self.input_file + '.ast'
             delete_tab = not self.step and not self.output_table and not os.path.exists(table_file)
+            delete_ast = not self.step and not self.output_ast and not os.path.exists(ast_file)
             try:
                 if self.step == Step.LEXICO:
                     sys.exit(Lexer(self.input_file).inicio())
@@ -81,9 +86,10 @@ class Main:
             except Exception as e:
                 traceback.print_exception(type(e), e, e.__traceback__)
                 sys.exit(1)
-            # Borrar tabla de símbolos
             if delete_tab:
                 os.remove(table_file)
+            if delete_ast:
+                os.remove(ast_file)
         else:
             self.print_help(argv[0])
             sys.exit(2)
diff --git a/compilador/parser.py b/compilador/parser.py
index a8f86b9..5330b55 100644
--- a/compilador/parser.py
+++ b/compilador/parser.py
@@ -14,7 +14,7 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
-import sys
+import sys, pickle
 import graphviz as gv
 from pprint import pprint
 
@@ -37,8 +37,14 @@ class Parser:
             print (unit.message, file=sys.stderr)
             return 1
 
+        # Renderizar AST
         dot = gv.Digraph()
         dot.attr('node', fontname='monospace')
         unit.graph(dot)
         dot.render(self.input_file + '.gv')
+
+        # Serializar AST
+        with open(self.input_file + '.ast', 'wb') as f:
+            pickle.dump(unit, f)
+        
         return 0
-- 
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