Mercurial > cpython-lru_cache-weakref
diff Python/compile.c @ 1354:fccd415e2eb8 legacy-trunk
* bltinmodule.c: removed exec() built-in function.
* 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.
| author | Guido van Rossum <guido@python.org> |
|---|---|
| date | Mon, 18 Oct 1993 17:06:59 +0000 |
| parents | cd397266dc1c |
| children | 132602d854d8 |
line wrap: on
line diff
--- a/Python/compile.c Mon Oct 18 11:44:47 1993 +0000 +++ b/Python/compile.c Mon Oct 18 17:06:59 1993 +0000 @@ -1305,7 +1305,7 @@ 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); @@ -1467,6 +1467,25 @@ } 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; node *n; @@ -1909,6 +1928,9 @@ 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 @@ 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 ||