mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-04 00:48:58 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

* bltinmodule.c: removed exec() built-in function.

Browse source 
* Grammar: add exec statement; allow testlist in expr statement.
* ceval.c, compile.c, opcode.h: support exec statement;
  avoid optimizing locals when it is used
* fileobject.{c,h}: add getfilename() internal function.
This commit is contained in:
Guido van Rossum 1993-10-18 17:06:59 +00:00
parent cacd9579d4
commit db3165e655
9 changed files with 600 additions and 451 deletions
Download patch file Download diff file Expand all files Collapse all files

26
Python/compile.c
View file

@ -1305,7 +1305,7 @@ com_expr_stmt(c, n)
struct compiling *c;
node *n;
{
REQ(n, expr_stmt); /* exprlist ('=' exprlist)* */
REQ(n, expr_stmt); /* testlist ('=' testlist)* */
com_node(c, CHILD(n, NCH(n)-1));
if (NCH(n) == 1) {
com_addbyte(c, PRINT_EXPR);
@ -1466,6 +1466,25 @@ com_access_stmt(c, n)
}
}
static void
com_exec_stmt(c, n)
struct compiling *c;
node *n;
{
REQ(n, exec_stmt);
/* exec_stmt: 'exec' expr ['in' expr [',' expr]] */
com_node(c, CHILD(n, 1));
if (NCH(n) >= 4)
com_node(c, CHILD(n, 3));
else
com_addoparg(c, LOAD_CONST, com_addconst(c, None));
if (NCH(n) >= 6)
com_node(c, CHILD(n, 5));
else
com_addbyte(c, DUP_TOP);
com_addbyte(c, EXEC_STMT);
}
static void
com_if_stmt(c, n)
struct compiling *c;
@ -1909,6 +1928,9 @@ com_node(c, n)
case access_stmt:
com_access_stmt(c, n);
break;
case exec_stmt:
com_exec_stmt(c, n);
break;
case if_stmt:
com_if_stmt(c, n);
break;
@ -2183,6 +2205,8 @@ optimize(c)
opcode = NEXTOP();
if (opcode == STOP_CODE)
break;
if (opcode == EXEC_STMT)
goto end; /* Don't optimize if exec present */
if (HAS_ARG(opcode))
oparg = NEXTARG();
if (opcode == STORE_NAME || opcode == DELETE_NAME ||