diff options
| author | Guido van Rossum <guido@python.org> | 1993-10-18 17:06:59 (GMT) |
|---|---|---|
| committer | Guido van Rossum <guido@python.org> | 1993-10-18 17:06:59 (GMT) |
| commit | db3165e6559c6b83373e7fed9cdf4371552a9a8e (patch) | |
| tree | 97b057363244668ebec6630553a86ad2206e3fd2 /Python/compile.c | |
| parent | cacd9579d48cb1e2acc3536c9701987b118edf8c (diff) | |
| download | cpython-db3165e6559c6b83373e7fed9cdf4371552a9a8e.zip cpython-db3165e6559c6b83373e7fed9cdf4371552a9a8e.tar.gz cpython-db3165e6559c6b83373e7fed9cdf4371552a9a8e.tar.bz2 | |
* 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.
Diffstat (limited to 'Python/compile.c')
| -rw-r--r-- | Python/compile.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/Python/compile.c b/Python/compile.c index 0eb06cb..2a1a2b4 100644 --- a/Python/compile.c +++ b/Python/compile.c @@ -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); @@ -1467,6 +1467,25 @@ 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; node *n; @@ -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 || |