always_latch support

Author: hofstee

pyverilog/vparser/ast.py

@@ -742,6 +742,10 @@ class AlwaysComb(Always):
     pass
 
 
+class AlwaysLatch(Always):
+    pass
+
+
 class SensList(Node):
     attr_names = ()
 

pyverilog/vparser/parser.py

@@ -473,6 +473,7 @@ def p_standard_item(self, p):
         | always
         | always_ff
         | always_comb
+        | always_latch
         | initial
         | instance
         | function
@@ -1273,10 +1274,17 @@ def p_always(self, p):
     def p_always_ff(self, p):
         'always_ff : ALWAYS_FF senslist always_statement'
         p[0] = AlwaysFF(p[2], p[3], lineno=p.lineno(1))
+        p.set_lineno(0, p.lineno(1))
 
     def p_always_comb(self, p):
         'always_comb : ALWAYS_COMB senslist always_statement'
         p[0] = AlwaysComb(p[2], p[3], lineno=p.lineno(1))
+        p.set_lineno(0, p.lineno(1))
+
+    def p_always_latch(self, p):
+        'always_latch : ALWAYS_LATCH senslist always_statement'
+        p[0] = AlwaysLatch(p[2], p[3], lineno=p.lineno(1))
+        p.set_lineno(0, p.lineno(1))
 
     def p_sens_egde_paren(self, p):
         'senslist : AT LPAREN edgesigs RPAREN'