Comment on what's up with last change

This commit is contained in:
rocky
2017-04-16 16:07:08 -04:00
parent 3a8d4e1a12
commit 3bbc94847d

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@@ -149,18 +149,18 @@ class Python3Parser(PythonParser):
iflaststmtl ::= testexpr c_stmts_opt JUMP_BACK COME_FROM_LOOP
# These are used to keep AST indices the same
jf_else ::= JUMP_FORWARD ELSE
ja_else ::= JUMP_ABSOLUTE ELSE
jump_forward_else ::= JUMP_FORWARD ELSE
jump_absolute_else ::= JUMP_ABSOLUTE ELSE
# Note: in if/else kinds of statements, we err on the side
# of missing "else" clauses. Therefore we include grammar
# rules with and without ELSE.
ifelsestmt ::= testexpr c_stmts_opt JUMP_FORWARD else_suite opt_come_from_except
ifelsestmt ::= testexpr c_stmts_opt jf_else else_suite _come_from
ifelsestmt ::= testexpr c_stmts_opt jump_forward_else else_suite _come_from
ifelsestmtc ::= testexpr c_stmts_opt JUMP_ABSOLUTE else_suitec
ifelsestmtc ::= testexpr c_stmts_opt ja_else else_suitec
ifelsestmtc ::= testexpr c_stmts_opt jump_absolute_else else_suitec
ifelsestmtr ::= testexpr return_if_stmts return_stmts
@@ -406,9 +406,12 @@ class Python3Parser(PythonParser):
def p_expr3(self, args):
"""
conditional ::= expr jmp_false expr jf_else expr COME_FROM
conditional ::= expr jmp_false expr ja_else expr
conditionalnot ::= expr jmp_true expr jf_else expr COME_FROM
conditional ::= expr jmp_false expr jump_forward_else expr COME_FROM
conditionalnot ::= expr jmp_true expr jump_forward_else expr COME_FROM
# a JUMP_FORWARD to another JUMP_FORWARD can get turned into
# a JUMP_ABSOLUTE with no COME_FROM
conditional ::= expr jmp_false expr jump_absolute_else expr
expr ::= LOAD_CLASSNAME