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require list comprehensions to start with a for clause

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Skip Montanaro 2000-08-22 02:43:07 +00:00
parent 2823f03a56
commit 46dfa5f4ed
7 changed files with 40 additions and 16 deletions
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8
Python/compile.c
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@ -1043,7 +1043,7 @@ com_list_iter(struct compiling *c,
static void
com_list_comprehension(struct compiling *c, node *n)
{
/* listmaker: test list_iter */
/* listmaker: test list_for */
char tmpname[12];
sprintf(tmpname, "__%d__", ++c->c_tmpname);
com_addoparg(c, BUILD_LIST, 0);
@ -1052,7 +1052,7 @@ com_list_comprehension(struct compiling *c, node *n)
com_addopnamestr(c, LOAD_ATTR, "append");
com_addopnamestr(c, STORE_NAME, tmpname);
com_pop(c, 1);
com_list_iter(c, n, CHILD(n, 0), tmpname);
com_list_for(c, CHILD(n, 1), CHILD(n, 0), tmpname);
com_addopnamestr(c, DELETE_NAME, tmpname);
--c->c_tmpname;
}
@ -1060,8 +1060,8 @@ com_list_comprehension(struct compiling *c, node *n)
static void
com_listmaker(struct compiling *c, node *n)
{
/* listmaker: test ( list_iter | (',' test)* [','] ) */
if (NCH(n) > 1 && TYPE(CHILD(n, 1)) == list_iter)
/* listmaker: test ( list_for | (',' test)* [','] ) */
if (NCH(n) > 1 && TYPE(CHILD(n, 1)) == list_for)
com_list_comprehension(c, n);
else {
int len = 0;

10
Python/graminit.c
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@ -1317,7 +1317,7 @@ static state states_59[4] = {
{1, arcs_59_3},
};
static arc arcs_60_0[2] = {
{128, 1},
{120, 1},
{129, 1},
};
static arc arcs_60_1[1] = {
@ -1340,7 +1340,7 @@ static arc arcs_61_3[1] = {
{9, 4},
};
static arc arcs_61_4[2] = {
{120, 5},
{128, 5},
{0, 4},
};
static arc arcs_61_5[1] = {
@ -1361,7 +1361,7 @@ static arc arcs_62_1[1] = {
{21, 2},
};
static arc arcs_62_2[2] = {
{120, 3},
{128, 3},
{0, 2},
};
static arc arcs_62_3[1] = {
@ -1622,7 +1622,7 @@ static label labels[130] = {
{25, 0},
{2, 0},
{3, 0},
{316, 0},
{317, 0},
{1, "lambda"},
{314, 0},
{307, 0},
@ -1630,7 +1630,7 @@ static label labels[130] = {
{309, 0},
{1, "class"},
{315, 0},
{317, 0},
{316, 0},
{318, 0},
};
grammar _PyParser_Grammar = {