static PyObject *parsestrplus(struct compiling *, const node *n);
#ifndef LINENO
-#define LINENO(n) ((n)->n_lineno)
+#define LINENO(n) ((n)->n_lineno)
#endif
static identifier
{
PyObject *u = Py_BuildValue("zi", errstr, LINENO(n));
if (!u)
- return 0;
+ return 0;
PyErr_SetObject(PyExc_SyntaxError, u);
Py_DECREF(u);
return 0;
assert(PyErr_Occurred());
if (!PyErr_ExceptionMatches(PyExc_SyntaxError))
- return;
+ return;
PyErr_Fetch(&type, &value, &tback);
errstr = PyTuple_GetItem(value, 0);
if (!errstr)
- return;
+ return;
Py_INCREF(errstr);
lineno = PyInt_AsLong(PyTuple_GetItem(value, 1));
if (lineno == -1) {
- Py_DECREF(errstr);
- return;
+ Py_DECREF(errstr);
+ return;
}
Py_DECREF(value);
loc = PyErr_ProgramText(filename, lineno);
if (!loc) {
- Py_INCREF(Py_None);
- loc = Py_None;
+ Py_INCREF(Py_None);
+ loc = Py_None;
}
tmp = Py_BuildValue("(zlOO)", filename, lineno, Py_None, loc);
Py_DECREF(loc);
if (!tmp) {
- Py_DECREF(errstr);
- return;
+ Py_DECREF(errstr);
+ return;
}
value = PyTuple_Pack(2, errstr, tmp);
Py_DECREF(errstr);
Py_DECREF(tmp);
if (!value)
- return;
+ return;
PyErr_Restore(type, value, tback);
}
node *ch;
switch (TYPE(n)) {
- case single_input:
- if (TYPE(CHILD(n, 0)) == NEWLINE)
- return 0;
- else
- return num_stmts(CHILD(n, 0));
- case file_input:
- l = 0;
- for (i = 0; i < NCH(n); i++) {
- ch = CHILD(n, i);
- if (TYPE(ch) == stmt)
- l += num_stmts(ch);
- }
- return l;
- case stmt:
- return num_stmts(CHILD(n, 0));
- case compound_stmt:
- return 1;
- case simple_stmt:
- return NCH(n) / 2; /* Divide by 2 to remove count of semi-colons */
- case suite:
- if (NCH(n) == 1)
- return num_stmts(CHILD(n, 0));
- else {
- l = 0;
- for (i = 2; i < (NCH(n) - 1); i++)
- l += num_stmts(CHILD(n, i));
- return l;
- }
- default: {
- char buf[128];
-
- sprintf(buf, "Non-statement found: %d %d\n",
- TYPE(n), NCH(n));
- Py_FatalError(buf);
- }
+ case single_input:
+ if (TYPE(CHILD(n, 0)) == NEWLINE)
+ return 0;
+ else
+ return num_stmts(CHILD(n, 0));
+ case file_input:
+ l = 0;
+ for (i = 0; i < NCH(n); i++) {
+ ch = CHILD(n, i);
+ if (TYPE(ch) == stmt)
+ l += num_stmts(ch);
+ }
+ return l;
+ case stmt:
+ return num_stmts(CHILD(n, 0));
+ case compound_stmt:
+ return 1;
+ case simple_stmt:
+ return NCH(n) / 2; /* Divide by 2 to remove count of semi-colons */
+ case suite:
+ if (NCH(n) == 1)
+ return num_stmts(CHILD(n, 0));
+ else {
+ l = 0;
+ for (i = 2; i < (NCH(n) - 1); i++)
+ l += num_stmts(CHILD(n, i));
+ return l;
+ }
+ default: {
+ char buf[128];
+
+ sprintf(buf, "Non-statement found: %d %d\n",
+ TYPE(n), NCH(n));
+ Py_FatalError(buf);
+ }
}
assert(0);
return 0;
mod_ty
PyAST_FromNode(const node *n, PyCompilerFlags *flags, const char *filename,
- PyArena *arena)
+ PyArena *arena)
{
int i, j, k, num;
asdl_seq *stmts = NULL;
struct compiling c;
if (flags && flags->cf_flags & PyCF_SOURCE_IS_UTF8) {
- c.c_encoding = "utf-8";
- if (TYPE(n) == encoding_decl) {
- ast_error(n, "encoding declaration in Unicode string");
- goto error;
- }
+ c.c_encoding = "utf-8";
+ if (TYPE(n) == encoding_decl) {
+ ast_error(n, "encoding declaration in Unicode string");
+ goto error;
+ }
} else if (TYPE(n) == encoding_decl) {
- c.c_encoding = STR(n);
- n = CHILD(n, 0);
+ c.c_encoding = STR(n);
+ n = CHILD(n, 0);
} else {
- c.c_encoding = NULL;
+ c.c_encoding = NULL;
}
c.c_arena = arena;
k = 0;
switch (TYPE(n)) {
- case file_input:
- stmts = asdl_seq_new(num_stmts(n), arena);
- if (!stmts)
- return NULL;
- for (i = 0; i < NCH(n) - 1; i++) {
- ch = CHILD(n, i);
- if (TYPE(ch) == NEWLINE)
- continue;
- REQ(ch, stmt);
- num = num_stmts(ch);
- if (num == 1) {
- s = ast_for_stmt(&c, ch);
- if (!s)
- goto error;
- asdl_seq_SET(stmts, k++, s);
- }
- else {
- ch = CHILD(ch, 0);
- REQ(ch, simple_stmt);
- for (j = 0; j < num; j++) {
- s = ast_for_stmt(&c, CHILD(ch, j * 2));
- if (!s)
- goto error;
- asdl_seq_SET(stmts, k++, s);
- }
- }
- }
- return Module(stmts, arena);
- case eval_input: {
- expr_ty testlist_ast;
-
- /* XXX Why not gen_for here? */
- testlist_ast = ast_for_testlist(&c, CHILD(n, 0));
- if (!testlist_ast)
- goto error;
- return Expression(testlist_ast, arena);
- }
- case single_input:
- if (TYPE(CHILD(n, 0)) == NEWLINE) {
- stmts = asdl_seq_new(1, arena);
- if (!stmts)
- goto error;
- asdl_seq_SET(stmts, 0, Pass(n->n_lineno, n->n_col_offset,
- arena));
- return Interactive(stmts, arena);
- }
- else {
- n = CHILD(n, 0);
- num = num_stmts(n);
- stmts = asdl_seq_new(num, arena);
- if (!stmts)
- goto error;
- if (num == 1) {
- s = ast_for_stmt(&c, n);
- if (!s)
- goto error;
- asdl_seq_SET(stmts, 0, s);
- }
- else {
- /* Only a simple_stmt can contain multiple statements. */
- REQ(n, simple_stmt);
- for (i = 0; i < NCH(n); i += 2) {
- if (TYPE(CHILD(n, i)) == NEWLINE)
- break;
- s = ast_for_stmt(&c, CHILD(n, i));
- if (!s)
- goto error;
- asdl_seq_SET(stmts, i / 2, s);
- }
- }
-
- return Interactive(stmts, arena);
- }
- default:
- goto error;
+ case file_input:
+ stmts = asdl_seq_new(num_stmts(n), arena);
+ if (!stmts)
+ return NULL;
+ for (i = 0; i < NCH(n) - 1; i++) {
+ ch = CHILD(n, i);
+ if (TYPE(ch) == NEWLINE)
+ continue;
+ REQ(ch, stmt);
+ num = num_stmts(ch);
+ if (num == 1) {
+ s = ast_for_stmt(&c, ch);
+ if (!s)
+ goto error;
+ asdl_seq_SET(stmts, k++, s);
+ }
+ else {
+ ch = CHILD(ch, 0);
+ REQ(ch, simple_stmt);
+ for (j = 0; j < num; j++) {
+ s = ast_for_stmt(&c, CHILD(ch, j * 2));
+ if (!s)
+ goto error;
+ asdl_seq_SET(stmts, k++, s);
+ }
+ }
+ }
+ return Module(stmts, arena);
+ case eval_input: {
+ expr_ty testlist_ast;
+
+ /* XXX Why not gen_for here? */
+ testlist_ast = ast_for_testlist(&c, CHILD(n, 0));
+ if (!testlist_ast)
+ goto error;
+ return Expression(testlist_ast, arena);
+ }
+ case single_input:
+ if (TYPE(CHILD(n, 0)) == NEWLINE) {
+ stmts = asdl_seq_new(1, arena);
+ if (!stmts)
+ goto error;
+ asdl_seq_SET(stmts, 0, Pass(n->n_lineno, n->n_col_offset,
+ arena));
+ return Interactive(stmts, arena);
+ }
+ else {
+ n = CHILD(n, 0);
+ num = num_stmts(n);
+ stmts = asdl_seq_new(num, arena);
+ if (!stmts)
+ goto error;
+ if (num == 1) {
+ s = ast_for_stmt(&c, n);
+ if (!s)
+ goto error;
+ asdl_seq_SET(stmts, 0, s);
+ }
+ else {
+ /* Only a simple_stmt can contain multiple statements. */
+ REQ(n, simple_stmt);
+ for (i = 0; i < NCH(n); i += 2) {
+ if (TYPE(CHILD(n, i)) == NEWLINE)
+ break;
+ s = ast_for_stmt(&c, CHILD(n, i));
+ if (!s)
+ goto error;
+ asdl_seq_SET(stmts, i / 2, s);
+ }
+ }
+
+ return Interactive(stmts, arena);
+ }
+ default:
+ goto error;
}
error:
ast_error_finish(filename);
get_operator(const node *n)
{
switch (TYPE(n)) {
- case VBAR:
- return BitOr;
- case CIRCUMFLEX:
- return BitXor;
- case AMPER:
- return BitAnd;
- case LEFTSHIFT:
- return LShift;
- case RIGHTSHIFT:
- return RShift;
- case PLUS:
- return Add;
- case MINUS:
- return Sub;
- case STAR:
- return Mult;
- case SLASH:
- return Div;
- case DOUBLESLASH:
- return FloorDiv;
- case PERCENT:
- return Mod;
- default:
- return (operator_ty)0;
+ case VBAR:
+ return BitOr;
+ case CIRCUMFLEX:
+ return BitXor;
+ case AMPER:
+ return BitAnd;
+ case LEFTSHIFT:
+ return LShift;
+ case RIGHTSHIFT:
+ return RShift;
+ case PLUS:
+ return Add;
+ case MINUS:
+ return Sub;
+ case STAR:
+ return Mult;
+ case SLASH:
+ return Div;
+ case DOUBLESLASH:
+ return FloorDiv;
+ case PERCENT:
+ return Mod;
+ default:
+ return (operator_ty)0;
}
}
assert(ctx != AugStore && ctx != AugLoad);
switch (e->kind) {
- case Attribute_kind:
- if (ctx == Store &&
- !strcmp(PyString_AS_STRING(e->v.Attribute.attr), "None")) {
- return ast_error(n, "assignment to None");
- }
- e->v.Attribute.ctx = ctx;
- break;
- case Subscript_kind:
- e->v.Subscript.ctx = ctx;
- break;
- case Name_kind:
- if (ctx == Store &&
- !strcmp(PyString_AS_STRING(e->v.Name.id), "None")) {
- return ast_error(n, "assignment to None");
- }
- e->v.Name.ctx = ctx;
- break;
- case List_kind:
- e->v.List.ctx = ctx;
- s = e->v.List.elts;
- break;
- case Tuple_kind:
- if (asdl_seq_LEN(e->v.Tuple.elts) == 0)
- return ast_error(n, "can't assign to ()");
- e->v.Tuple.ctx = ctx;
- s = e->v.Tuple.elts;
- break;
- case Lambda_kind:
- expr_name = "lambda";
- break;
- case Call_kind:
- expr_name = "function call";
- break;
- case BoolOp_kind:
- case BinOp_kind:
- case UnaryOp_kind:
- expr_name = "operator";
- break;
- case GeneratorExp_kind:
- expr_name = "generator expression";
- break;
- case Yield_kind:
- expr_name = "yield expression";
- break;
- case ListComp_kind:
- expr_name = "list comprehension";
- break;
- case Dict_kind:
- case Num_kind:
- case Str_kind:
- expr_name = "literal";
- break;
- case Compare_kind:
- expr_name = "comparison";
- break;
- case Repr_kind:
- expr_name = "repr";
- break;
- case IfExp_kind:
- expr_name = "conditional expression";
- break;
- default:
- PyErr_Format(PyExc_SystemError,
- "unexpected expression in assignment %d (line %d)",
- e->kind, e->lineno);
- return 0;
+ case Attribute_kind:
+ if (ctx == Store &&
+ !strcmp(PyString_AS_STRING(e->v.Attribute.attr), "None")) {
+ return ast_error(n, "assignment to None");
+ }
+ e->v.Attribute.ctx = ctx;
+ break;
+ case Subscript_kind:
+ e->v.Subscript.ctx = ctx;
+ break;
+ case Name_kind:
+ if (ctx == Store &&
+ !strcmp(PyString_AS_STRING(e->v.Name.id), "None")) {
+ return ast_error(n, "assignment to None");
+ }
+ e->v.Name.ctx = ctx;
+ break;
+ case List_kind:
+ e->v.List.ctx = ctx;
+ s = e->v.List.elts;
+ break;
+ case Tuple_kind:
+ if (asdl_seq_LEN(e->v.Tuple.elts) == 0)
+ return ast_error(n, "can't assign to ()");
+ e->v.Tuple.ctx = ctx;
+ s = e->v.Tuple.elts;
+ break;
+ case Lambda_kind:
+ expr_name = "lambda";
+ break;
+ case Call_kind:
+ expr_name = "function call";
+ break;
+ case BoolOp_kind:
+ case BinOp_kind:
+ case UnaryOp_kind:
+ expr_name = "operator";
+ break;
+ case GeneratorExp_kind:
+ expr_name = "generator expression";
+ break;
+ case Yield_kind:
+ expr_name = "yield expression";
+ break;
+ case ListComp_kind:
+ expr_name = "list comprehension";
+ break;
+ case Dict_kind:
+ case Num_kind:
+ case Str_kind:
+ expr_name = "literal";
+ break;
+ case Compare_kind:
+ expr_name = "comparison";
+ break;
+ case Repr_kind:
+ expr_name = "repr";
+ break;
+ case IfExp_kind:
+ expr_name = "conditional expression";
+ break;
+ default:
+ PyErr_Format(PyExc_SystemError,
+ "unexpected expression in assignment %d (line %d)",
+ e->kind, e->lineno);
+ return 0;
}
/* Check for error string set by switch */
if (expr_name) {
- char buf[300];
- PyOS_snprintf(buf, sizeof(buf),
- "can't %s %s",
- ctx == Store ? "assign to" : "delete",
- expr_name);
- return ast_error(n, buf);
+ char buf[300];
+ PyOS_snprintf(buf, sizeof(buf),
+ "can't %s %s",
+ ctx == Store ? "assign to" : "delete",
+ expr_name);
+ return ast_error(n, buf);
}
/* If the LHS is a list or tuple, we need to set the assignment
- context for all the contained elements.
+ context for all the contained elements.
*/
if (s) {
- int i;
+ int i;
- for (i = 0; i < asdl_seq_LEN(s); i++) {
- if (!set_context((expr_ty)asdl_seq_GET(s, i), ctx, n))
- return 0;
- }
+ for (i = 0; i < asdl_seq_LEN(s); i++) {
+ if (!set_context((expr_ty)asdl_seq_GET(s, i), ctx, n))
+ return 0;
+ }
}
return 1;
}
REQ(n, augassign);
n = CHILD(n, 0);
switch (STR(n)[0]) {
- case '+':
- return Add;
- case '-':
- return Sub;
- case '/':
- if (STR(n)[1] == '/')
- return FloorDiv;
- else
- return Div;
- case '%':
- return Mod;
- case '<':
- return LShift;
- case '>':
- return RShift;
- case '&':
- return BitAnd;
- case '^':
- return BitXor;
- case '|':
- return BitOr;
- case '*':
- if (STR(n)[1] == '*')
- return Pow;
- else
- return Mult;
- default:
- PyErr_Format(PyExc_SystemError, "invalid augassign: %s", STR(n));
- return (operator_ty)0;
+ case '+':
+ return Add;
+ case '-':
+ return Sub;
+ case '/':
+ if (STR(n)[1] == '/')
+ return FloorDiv;
+ else
+ return Div;
+ case '%':
+ return Mod;
+ case '<':
+ return LShift;
+ case '>':
+ return RShift;
+ case '&':
+ return BitAnd;
+ case '^':
+ return BitXor;
+ case '|':
+ return BitOr;
+ case '*':
+ if (STR(n)[1] == '*')
+ return Pow;
+ else
+ return Mult;
+ default:
+ PyErr_Format(PyExc_SystemError, "invalid augassign: %s", STR(n));
+ return (operator_ty)0;
}
}
ast_for_comp_op(const node *n)
{
/* comp_op: '<'|'>'|'=='|'>='|'<='|'<>'|'!='|'in'|'not' 'in'|'is'
- |'is' 'not'
+ |'is' 'not'
*/
REQ(n, comp_op);
if (NCH(n) == 1) {
- n = CHILD(n, 0);
- switch (TYPE(n)) {
- case LESS:
- return Lt;
- case GREATER:
- return Gt;
- case EQEQUAL: /* == */
- return Eq;
- case LESSEQUAL:
- return LtE;
- case GREATEREQUAL:
- return GtE;
- case NOTEQUAL:
- return NotEq;
- case NAME:
- if (strcmp(STR(n), "in") == 0)
- return In;
- if (strcmp(STR(n), "is") == 0)
- return Is;
- default:
- PyErr_Format(PyExc_SystemError, "invalid comp_op: %s",
- STR(n));
- return (cmpop_ty)0;
- }
+ n = CHILD(n, 0);
+ switch (TYPE(n)) {
+ case LESS:
+ return Lt;
+ case GREATER:
+ return Gt;
+ case EQEQUAL: /* == */
+ return Eq;
+ case LESSEQUAL:
+ return LtE;
+ case GREATEREQUAL:
+ return GtE;
+ case NOTEQUAL:
+ return NotEq;
+ case NAME:
+ if (strcmp(STR(n), "in") == 0)
+ return In;
+ if (strcmp(STR(n), "is") == 0)
+ return Is;
+ default:
+ PyErr_Format(PyExc_SystemError, "invalid comp_op: %s",
+ STR(n));
+ return (cmpop_ty)0;
+ }
}
else if (NCH(n) == 2) {
- /* handle "not in" and "is not" */
- switch (TYPE(CHILD(n, 0))) {
- case NAME:
- if (strcmp(STR(CHILD(n, 1)), "in") == 0)
- return NotIn;
- if (strcmp(STR(CHILD(n, 0)), "is") == 0)
- return IsNot;
- default:
- PyErr_Format(PyExc_SystemError, "invalid comp_op: %s %s",
- STR(CHILD(n, 0)), STR(CHILD(n, 1)));
- return (cmpop_ty)0;
- }
+ /* handle "not in" and "is not" */
+ switch (TYPE(CHILD(n, 0))) {
+ case NAME:
+ if (strcmp(STR(CHILD(n, 1)), "in") == 0)
+ return NotIn;
+ if (strcmp(STR(CHILD(n, 0)), "is") == 0)
+ return IsNot;
+ default:
+ PyErr_Format(PyExc_SystemError, "invalid comp_op: %s %s",
+ STR(CHILD(n, 0)), STR(CHILD(n, 1)));
+ return (cmpop_ty)0;
+ }
}
PyErr_Format(PyExc_SystemError, "invalid comp_op: has %d children",
- NCH(n));
+ NCH(n));
return (cmpop_ty)0;
}
expr_ty expression;
int i;
assert(TYPE(n) == testlist
- || TYPE(n) == listmaker
- || TYPE(n) == testlist_gexp
- || TYPE(n) == testlist_safe
- || TYPE(n) == testlist1
- );
+ || TYPE(n) == listmaker
+ || TYPE(n) == testlist_gexp
+ || TYPE(n) == testlist_safe
+ || TYPE(n) == testlist1
+ );
seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena);
if (!seq)
- return NULL;
+ return NULL;
for (i = 0; i < NCH(n); i += 2) {
- assert(TYPE(CHILD(n, i)) == test || TYPE(CHILD(n, i)) == old_test);
+ assert(TYPE(CHILD(n, i)) == test || TYPE(CHILD(n, i)) == old_test);
- expression = ast_for_expr(c, CHILD(n, i));
- if (!expression)
- return NULL;
+ expression = ast_for_expr(c, CHILD(n, i));
+ if (!expression)
+ return NULL;
- assert(i / 2 < seq->size);
- asdl_seq_SET(seq, i / 2, expression);
+ assert(i / 2 < seq->size);
+ asdl_seq_SET(seq, i / 2, expression);
}
return seq;
}
expr_ty result;
asdl_seq *args = asdl_seq_new(len, c->c_arena);
if (!args)
- return NULL;
+ return NULL;
/* fpdef: NAME | '(' fplist ')'
fplist: fpdef (',' fpdef)* [',']
*/
REQ(n, fplist);
for (i = 0; i < len; i++) {
- const node *fpdef_node = CHILD(n, 2*i);
- const node *child;
- expr_ty arg;
+ const node *fpdef_node = CHILD(n, 2*i);
+ const node *child;
+ expr_ty arg;
set_name:
- /* fpdef_node is either a NAME or an fplist */
- child = CHILD(fpdef_node, 0);
- if (TYPE(child) == NAME) {
- if (!strcmp(STR(child), "None")) {
- ast_error(child, "assignment to None");
- return NULL;
- }
- arg = Name(NEW_IDENTIFIER(child), Store, LINENO(child),
- child->n_col_offset, c->c_arena);
- }
- else {
- assert(TYPE(fpdef_node) == fpdef);
- /* fpdef_node[0] is not a name, so it must be a '(', get CHILD[1] */
- child = CHILD(fpdef_node, 1);
- assert(TYPE(child) == fplist);
- /* NCH == 1 means we have (x), we need to elide the extra parens */
- if (NCH(child) == 1) {
- fpdef_node = CHILD(child, 0);
- assert(TYPE(fpdef_node) == fpdef);
- goto set_name;
- }
- arg = compiler_complex_args(c, child);
- }
- asdl_seq_SET(args, i, arg);
+ /* fpdef_node is either a NAME or an fplist */
+ child = CHILD(fpdef_node, 0);
+ if (TYPE(child) == NAME) {
+ if (!strcmp(STR(child), "None")) {
+ ast_error(child, "assignment to None");
+ return NULL;
+ }
+ arg = Name(NEW_IDENTIFIER(child), Store, LINENO(child),
+ child->n_col_offset, c->c_arena);
+ }
+ else {
+ assert(TYPE(fpdef_node) == fpdef);
+ /* fpdef_node[0] is not a name, so it must be a '(', get CHILD[1] */
+ child = CHILD(fpdef_node, 1);
+ assert(TYPE(child) == fplist);
+ /* NCH == 1 means we have (x), we need to elide the extra parens */
+ if (NCH(child) == 1) {
+ fpdef_node = CHILD(child, 0);
+ assert(TYPE(fpdef_node) == fpdef);
+ goto set_name;
+ }
+ arg = compiler_complex_args(c, child);
+ }
+ asdl_seq_SET(args, i, arg);
}
result = Tuple(args, Store, LINENO(n), n->n_col_offset, c->c_arena);
if (!set_context(result, Store, n))
- return NULL;
+ return NULL;
return result;
}
{
/* parameters: '(' [varargslist] ')'
varargslist: (fpdef ['=' test] ',')* ('*' NAME [',' '**' NAME]
- | '**' NAME) | fpdef ['=' test] (',' fpdef ['=' test])* [',']
+ | '**' NAME) | fpdef ['=' test] (',' fpdef ['=' test])* [',']
*/
int i, j, k, n_args = 0, n_defaults = 0, found_default = 0;
asdl_seq *args, *defaults;
node *ch;
if (TYPE(n) == parameters) {
- if (NCH(n) == 2) /* () as argument list */
- return arguments(NULL, NULL, NULL, NULL, c->c_arena);
- n = CHILD(n, 1);
+ if (NCH(n) == 2) /* () as argument list */
+ return arguments(NULL, NULL, NULL, NULL, c->c_arena);
+ n = CHILD(n, 1);
}
REQ(n, varargslist);
/* first count the number of normal args & defaults */
for (i = 0; i < NCH(n); i++) {
- ch = CHILD(n, i);
- if (TYPE(ch) == fpdef)
- n_args++;
- if (TYPE(ch) == EQUAL)
- n_defaults++;
+ ch = CHILD(n, i);
+ if (TYPE(ch) == fpdef)
+ n_args++;
+ if (TYPE(ch) == EQUAL)
+ n_defaults++;
}
args = (n_args ? asdl_seq_new(n_args, c->c_arena) : NULL);
if (!args && n_args)
- return NULL; /* Don't need to goto error; no objects allocated */
+ return NULL; /* Don't need to goto error; no objects allocated */
defaults = (n_defaults ? asdl_seq_new(n_defaults, c->c_arena) : NULL);
if (!defaults && n_defaults)
- return NULL; /* Don't need to goto error; no objects allocated */
+ return NULL; /* Don't need to goto error; no objects allocated */
/* fpdef: NAME | '(' fplist ')'
fplist: fpdef (',' fpdef)* [',']
j = 0; /* index for defaults */
k = 0; /* index for args */
while (i < NCH(n)) {
- ch = CHILD(n, i);
- switch (TYPE(ch)) {
- case fpdef:
- handle_fpdef:
- /* XXX Need to worry about checking if TYPE(CHILD(n, i+1)) is
- anything other than EQUAL or a comma? */
- /* XXX Should NCH(n) check be made a separate check? */
- if (i + 1 < NCH(n) && TYPE(CHILD(n, i + 1)) == EQUAL) {
- expr_ty expression = ast_for_expr(c, CHILD(n, i + 2));
- if (!expression)
- goto error;
- assert(defaults != NULL);
- asdl_seq_SET(defaults, j++, expression);
- i += 2;
- found_default = 1;
- }
- else if (found_default) {
- ast_error(n,
- "non-default argument follows default argument");
- goto error;
- }
- if (NCH(ch) == 3) {
- ch = CHILD(ch, 1);
- /* def foo((x)): is not complex, special case. */
- if (NCH(ch) != 1) {
- /* We have complex arguments, setup for unpacking. */
- asdl_seq_SET(args, k++, compiler_complex_args(c, ch));
- } else {
- /* def foo((x)): setup for checking NAME below. */
- /* Loop because there can be many parens and tuple
- unpacking mixed in. */
- ch = CHILD(ch, 0);
- assert(TYPE(ch) == fpdef);
- goto handle_fpdef;
- }
- }
- if (TYPE(CHILD(ch, 0)) == NAME) {
- expr_ty name;
- if (!strcmp(STR(CHILD(ch, 0)), "None")) {
- ast_error(CHILD(ch, 0), "assignment to None");
- goto error;
- }
- name = Name(NEW_IDENTIFIER(CHILD(ch, 0)),
- Param, LINENO(ch), ch->n_col_offset,
- c->c_arena);
- if (!name)
- goto error;
- asdl_seq_SET(args, k++, name);
-
- }
- i += 2; /* the name and the comma */
- break;
- case STAR:
- if (!strcmp(STR(CHILD(n, i+1)), "None")) {
- ast_error(CHILD(n, i+1), "assignment to None");
- goto error;
- }
- vararg = NEW_IDENTIFIER(CHILD(n, i+1));
- i += 3;
- break;
- case DOUBLESTAR:
- if (!strcmp(STR(CHILD(n, i+1)), "None")) {
- ast_error(CHILD(n, i+1), "assignment to None");
- goto error;
- }
- kwarg = NEW_IDENTIFIER(CHILD(n, i+1));
- i += 3;
- break;
- default:
- PyErr_Format(PyExc_SystemError,
- "unexpected node in varargslist: %d @ %d",
- TYPE(ch), i);
- goto error;
- }
+ ch = CHILD(n, i);
+ switch (TYPE(ch)) {
+ case fpdef:
+ handle_fpdef:
+ /* XXX Need to worry about checking if TYPE(CHILD(n, i+1)) is
+ anything other than EQUAL or a comma? */
+ /* XXX Should NCH(n) check be made a separate check? */
+ if (i + 1 < NCH(n) && TYPE(CHILD(n, i + 1)) == EQUAL) {
+ expr_ty expression = ast_for_expr(c, CHILD(n, i + 2));
+ if (!expression)
+ goto error;
+ assert(defaults != NULL);
+ asdl_seq_SET(defaults, j++, expression);
+ i += 2;
+ found_default = 1;
+ }
+ else if (found_default) {
+ ast_error(n,
+ "non-default argument follows default argument");
+ goto error;
+ }
+ if (NCH(ch) == 3) {
+ ch = CHILD(ch, 1);
+ /* def foo((x)): is not complex, special case. */
+ if (NCH(ch) != 1) {
+ /* We have complex arguments, setup for unpacking. */
+ asdl_seq_SET(args, k++, compiler_complex_args(c, ch));
+ } else {
+ /* def foo((x)): setup for checking NAME below. */
+ /* Loop because there can be many parens and tuple
+ unpacking mixed in. */
+ ch = CHILD(ch, 0);
+ assert(TYPE(ch) == fpdef);
+ goto handle_fpdef;
+ }
+ }
+ if (TYPE(CHILD(ch, 0)) == NAME) {
+ expr_ty name;
+ if (!strcmp(STR(CHILD(ch, 0)), "None")) {
+ ast_error(CHILD(ch, 0), "assignment to None");
+ goto error;
+ }
+ name = Name(NEW_IDENTIFIER(CHILD(ch, 0)),
+ Param, LINENO(ch), ch->n_col_offset,
+ c->c_arena);
+ if (!name)
+ goto error;
+ asdl_seq_SET(args, k++, name);
+
+ }
+ i += 2; /* the name and the comma */
+ break;
+ case STAR:
+ if (!strcmp(STR(CHILD(n, i+1)), "None")) {
+ ast_error(CHILD(n, i+1), "assignment to None");
+ goto error;
+ }
+ vararg = NEW_IDENTIFIER(CHILD(n, i+1));
+ i += 3;
+ break;
+ case DOUBLESTAR:
+ if (!strcmp(STR(CHILD(n, i+1)), "None")) {
+ ast_error(CHILD(n, i+1), "assignment to None");
+ goto error;
+ }
+ kwarg = NEW_IDENTIFIER(CHILD(n, i+1));
+ i += 3;
+ break;
+ default:
+ PyErr_Format(PyExc_SystemError,
+ "unexpected node in varargslist: %d @ %d",
+ TYPE(ch), i);
+ goto error;
+ }
}
return arguments(args, vararg, kwarg, defaults, c->c_arena);
id = NEW_IDENTIFIER(CHILD(n, 0));
if (!id)
- return NULL;
+ return NULL;
e = Name(id, Load, lineno, col_offset, c->c_arena);
if (!e)
- return NULL;
+ return NULL;
for (i = 2; i < NCH(n); i+=2) {
- id = NEW_IDENTIFIER(CHILD(n, i));
- if (!id)
- return NULL;
- e = Attribute(e, id, Load, lineno, col_offset, c->c_arena);
- if (!e)
- return NULL;
+ id = NEW_IDENTIFIER(CHILD(n, i));
+ if (!id)
+ return NULL;
+ e = Attribute(e, id, Load, lineno, col_offset, c->c_arena);
+ if (!e)
+ return NULL;
}
return e;
name_expr = ast_for_dotted_name(c, CHILD(n, 1));
if (!name_expr)
- return NULL;
-
+ return NULL;
+
if (NCH(n) == 3) { /* No arguments */
- d = name_expr;
- name_expr = NULL;
+ d = name_expr;
+ name_expr = NULL;
}
else if (NCH(n) == 5) { /* Call with no arguments */
- d = Call(name_expr, NULL, NULL, NULL, NULL, LINENO(n),
- n->n_col_offset, c->c_arena);
- if (!d)
- return NULL;
- name_expr = NULL;
+ d = Call(name_expr, NULL, NULL, NULL, NULL, LINENO(n),
+ n->n_col_offset, c->c_arena);
+ if (!d)
+ return NULL;
+ name_expr = NULL;
}
else {
- d = ast_for_call(c, CHILD(n, 3), name_expr);
- if (!d)
- return NULL;
- name_expr = NULL;
+ d = ast_for_call(c, CHILD(n, 3), name_expr);
+ if (!d)
+ return NULL;
+ name_expr = NULL;
}
return d;
REQ(n, decorators);
decorator_seq = asdl_seq_new(NCH(n), c->c_arena);
if (!decorator_seq)
- return NULL;
-
+ return NULL;
+
for (i = 0; i < NCH(n); i++) {
- d = ast_for_decorator(c, CHILD(n, i));
- if (!d)
- return NULL;
- asdl_seq_SET(decorator_seq, i, d);
+ d = ast_for_decorator(c, CHILD(n, i));
+ if (!d)
+ return NULL;
+ asdl_seq_SET(decorator_seq, i, d);
}
return decorator_seq;
}
REQ(n, funcdef);
if (NCH(n) == 6) { /* decorators are present */
- decorator_seq = ast_for_decorators(c, CHILD(n, 0));
- if (!decorator_seq)
- return NULL;
- name_i = 2;
+ decorator_seq = ast_for_decorators(c, CHILD(n, 0));
+ if (!decorator_seq)
+ return NULL;
+ name_i = 2;
}
else {
- name_i = 1;
+ name_i = 1;
}
name = NEW_IDENTIFIER(CHILD(n, name_i));
if (!name)
- return NULL;
+ return NULL;
else if (!strcmp(STR(CHILD(n, name_i)), "None")) {
- ast_error(CHILD(n, name_i), "assignment to None");
- return NULL;
+ ast_error(CHILD(n, name_i), "assignment to None");
+ return NULL;
}
args = ast_for_arguments(c, CHILD(n, name_i + 1));
if (!args)
- return NULL;
+ return NULL;
body = ast_for_suite(c, CHILD(n, name_i + 3));
if (!body)
- return NULL;
+ return NULL;
return FunctionDef(name, args, body, decorator_seq, LINENO(n),
- n->n_col_offset, c->c_arena);
+ n->n_col_offset, c->c_arena);
}
static expr_ty
expr_ty expression;
if (NCH(n) == 3) {
- args = arguments(NULL, NULL, NULL, NULL, c->c_arena);
- if (!args)
- return NULL;
- expression = ast_for_expr(c, CHILD(n, 2));
- if (!expression)
- return NULL;
+ args = arguments(NULL, NULL, NULL, NULL, c->c_arena);
+ if (!args)
+ return NULL;
+ expression = ast_for_expr(c, CHILD(n, 2));
+ if (!expression)
+ return NULL;
}
else {
- args = ast_for_arguments(c, CHILD(n, 1));
- if (!args)
- return NULL;
- expression = ast_for_expr(c, CHILD(n, 3));
- if (!expression)
- return NULL;
+ args = ast_for_arguments(c, CHILD(n, 1));
+ if (!args)
+ return NULL;
+ expression = ast_for_expr(c, CHILD(n, 3));
+ if (!expression)
+ return NULL;
}
return Lambda(args, expression, LINENO(n), n->n_col_offset, c->c_arena);
assert(NCH(n) == 5);
body = ast_for_expr(c, CHILD(n, 0));
if (!body)
- return NULL;
+ return NULL;
expression = ast_for_expr(c, CHILD(n, 2));
if (!expression)
- return NULL;
+ return NULL;
orelse = ast_for_expr(c, CHILD(n, 4));
if (!orelse)
- return NULL;
+ return NULL;
return IfExp(expression, body, orelse, LINENO(n), n->n_col_offset,
- c->c_arena);
+ c->c_arena);
}
/* XXX(nnorwitz): the listcomp and genexpr code should be refactored
n_fors++;
REQ(ch, list_for);
if (NCH(ch) == 5)
- ch = CHILD(ch, 4);
+ ch = CHILD(ch, 4);
else
- return n_fors;
+ return n_fors;
count_list_iter:
REQ(ch, list_iter);
ch = CHILD(ch, 0);
if (TYPE(ch) == list_for)
- goto count_list_for;
+ goto count_list_for;
else if (TYPE(ch) == list_if) {
- if (NCH(ch) == 3) {
- ch = CHILD(ch, 2);
- goto count_list_iter;
- }
- else
- return n_fors;
+ if (NCH(ch) == 3) {
+ ch = CHILD(ch, 2);
+ goto count_list_iter;
+ }
+ else
+ return n_fors;
}
/* Should never be reached */
count_list_iter:
REQ(n, list_iter);
if (TYPE(CHILD(n, 0)) == list_for)
- return n_ifs;
+ return n_ifs;
n = CHILD(n, 0);
REQ(n, list_if);
n_ifs++;
if (NCH(n) == 2)
- return n_ifs;
+ return n_ifs;
n = CHILD(n, 2);
goto count_list_iter;
}
elt = ast_for_expr(c, CHILD(n, 0));
if (!elt)
- return NULL;
+ return NULL;
n_fors = count_list_fors(n);
if (n_fors == -1)
- return NULL;
+ return NULL;
listcomps = asdl_seq_new(n_fors, c->c_arena);
if (!listcomps)
- return NULL;
+ return NULL;
ch = CHILD(n, 1);
for (i = 0; i < n_fors; i++) {
- comprehension_ty lc;
- asdl_seq *t;
- expr_ty expression;
- node *for_ch;
-
- REQ(ch, list_for);
-
- for_ch = CHILD(ch, 1);
- t = ast_for_exprlist(c, for_ch, Store);
- if (!t)
- return NULL;
- expression = ast_for_testlist(c, CHILD(ch, 3));
- if (!expression)
- return NULL;
-
- /* Check the # of children rather than the length of t, since
- [x for x, in ... ] has 1 element in t, but still requires a Tuple. */
- if (NCH(for_ch) == 1)
- lc = comprehension((expr_ty)asdl_seq_GET(t, 0), expression, NULL,
- c->c_arena);
- else
- lc = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset,
- c->c_arena),
- expression, NULL, c->c_arena);
- if (!lc)
- return NULL;
-
- if (NCH(ch) == 5) {
- int j, n_ifs;
- asdl_seq *ifs;
-
- ch = CHILD(ch, 4);
- n_ifs = count_list_ifs(ch);
- if (n_ifs == -1)
- return NULL;
-
- ifs = asdl_seq_new(n_ifs, c->c_arena);
- if (!ifs)
- return NULL;
-
- for (j = 0; j < n_ifs; j++) {
- REQ(ch, list_iter);
- ch = CHILD(ch, 0);
- REQ(ch, list_if);
-
- asdl_seq_SET(ifs, j, ast_for_expr(c, CHILD(ch, 1)));
- if (NCH(ch) == 3)
- ch = CHILD(ch, 2);
- }
- /* on exit, must guarantee that ch is a list_for */
- if (TYPE(ch) == list_iter)
- ch = CHILD(ch, 0);
- lc->ifs = ifs;
- }
- asdl_seq_SET(listcomps, i, lc);
+ comprehension_ty lc;
+ asdl_seq *t;
+ expr_ty expression;
+ node *for_ch;
+
+ REQ(ch, list_for);
+
+ for_ch = CHILD(ch, 1);
+ t = ast_for_exprlist(c, for_ch, Store);
+ if (!t)
+ return NULL;
+ expression = ast_for_testlist(c, CHILD(ch, 3));
+ if (!expression)
+ return NULL;
+
+ /* Check the # of children rather than the length of t, since
+ [x for x, in ... ] has 1 element in t, but still requires a Tuple. */
+ if (NCH(for_ch) == 1)
+ lc = comprehension((expr_ty)asdl_seq_GET(t, 0), expression, NULL,
+ c->c_arena);
+ else
+ lc = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset,
+ c->c_arena),
+ expression, NULL, c->c_arena);
+ if (!lc)
+ return NULL;
+
+ if (NCH(ch) == 5) {
+ int j, n_ifs;
+ asdl_seq *ifs;
+
+ ch = CHILD(ch, 4);
+ n_ifs = count_list_ifs(ch);
+ if (n_ifs == -1)
+ return NULL;
+
+ ifs = asdl_seq_new(n_ifs, c->c_arena);
+ if (!ifs)
+ return NULL;
+
+ for (j = 0; j < n_ifs; j++) {
+ REQ(ch, list_iter);
+ ch = CHILD(ch, 0);
+ REQ(ch, list_if);
+
+ asdl_seq_SET(ifs, j, ast_for_expr(c, CHILD(ch, 1)));
+ if (NCH(ch) == 3)
+ ch = CHILD(ch, 2);
+ }
+ /* on exit, must guarantee that ch is a list_for */
+ if (TYPE(ch) == list_iter)
+ ch = CHILD(ch, 0);
+ lc->ifs = ifs;
+ }
+ asdl_seq_SET(listcomps, i, lc);
}
return ListComp(elt, listcomps, LINENO(n), n->n_col_offset, c->c_arena);
static int
count_gen_fors(const node *n)
{
- int n_fors = 0;
- node *ch = CHILD(n, 1);
+ int n_fors = 0;
+ node *ch = CHILD(n, 1);
count_gen_for:
- n_fors++;
- REQ(ch, gen_for);
- if (NCH(ch) == 5)
- ch = CHILD(ch, 4);
- else
- return n_fors;
+ n_fors++;
+ REQ(ch, gen_for);
+ if (NCH(ch) == 5)
+ ch = CHILD(ch, 4);
+ else
+ return n_fors;
count_gen_iter:
- REQ(ch, gen_iter);
- ch = CHILD(ch, 0);
- if (TYPE(ch) == gen_for)
- goto count_gen_for;
- else if (TYPE(ch) == gen_if) {
- if (NCH(ch) == 3) {
- ch = CHILD(ch, 2);
- goto count_gen_iter;
- }
- else
- return n_fors;
- }
-
- /* Should never be reached */
- PyErr_SetString(PyExc_SystemError,
- "logic error in count_gen_fors");
- return -1;
+ REQ(ch, gen_iter);
+ ch = CHILD(ch, 0);
+ if (TYPE(ch) == gen_for)
+ goto count_gen_for;
+ else if (TYPE(ch) == gen_if) {
+ if (NCH(ch) == 3) {
+ ch = CHILD(ch, 2);
+ goto count_gen_iter;
+ }
+ else
+ return n_fors;
+ }
+
+ /* Should never be reached */
+ PyErr_SetString(PyExc_SystemError,
+ "logic error in count_gen_fors");
+ return -1;
}
/* Count the number of 'if' statements in a generator expression.
static int
count_gen_ifs(const node *n)
{
- int n_ifs = 0;
-
- while (1) {
- REQ(n, gen_iter);
- if (TYPE(CHILD(n, 0)) == gen_for)
- return n_ifs;
- n = CHILD(n, 0);
- REQ(n, gen_if);
- n_ifs++;
- if (NCH(n) == 2)
- return n_ifs;
- n = CHILD(n, 2);
- }
+ int n_ifs = 0;
+
+ while (1) {
+ REQ(n, gen_iter);
+ if (TYPE(CHILD(n, 0)) == gen_for)
+ return n_ifs;
+ n = CHILD(n, 0);
+ REQ(n, gen_if);
+ n_ifs++;
+ if (NCH(n) == 2)
+ return n_ifs;
+ n = CHILD(n, 2);
+ }
}
/* TODO(jhylton): Combine with list comprehension code? */
ast_for_genexp(struct compiling *c, const node *n)
{
/* testlist_gexp: test ( gen_for | (',' test)* [','] )
- argument: [test '='] test [gen_for] # Really [keyword '='] test */
+ argument: [test '='] test [gen_for] # Really [keyword '='] test */
expr_ty elt;
asdl_seq *genexps;
int i, n_fors;
elt = ast_for_expr(c, CHILD(n, 0));
if (!elt)
- return NULL;
+ return NULL;
n_fors = count_gen_fors(n);
if (n_fors == -1)
- return NULL;
+ return NULL;
genexps = asdl_seq_new(n_fors, c->c_arena);
if (!genexps)
- return NULL;
+ return NULL;
ch = CHILD(n, 1);
for (i = 0; i < n_fors; i++) {
- comprehension_ty ge;
- asdl_seq *t;
- expr_ty expression;
- node *for_ch;
-
- REQ(ch, gen_for);
-
- for_ch = CHILD(ch, 1);
- t = ast_for_exprlist(c, for_ch, Store);
- if (!t)
- return NULL;
- expression = ast_for_expr(c, CHILD(ch, 3));
- if (!expression)
- return NULL;
-
- /* Check the # of children rather than the length of t, since
- (x for x, in ...) has 1 element in t, but still requires a Tuple. */
- if (NCH(for_ch) == 1)
- ge = comprehension((expr_ty)asdl_seq_GET(t, 0), expression,
- NULL, c->c_arena);
- else
- ge = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset,
- c->c_arena),
- expression, NULL, c->c_arena);
-
- if (!ge)
- return NULL;
-
- if (NCH(ch) == 5) {
- int j, n_ifs;
- asdl_seq *ifs;
-
- ch = CHILD(ch, 4);
- n_ifs = count_gen_ifs(ch);
- if (n_ifs == -1)
- return NULL;
-
- ifs = asdl_seq_new(n_ifs, c->c_arena);
- if (!ifs)
- return NULL;
-
- for (j = 0; j < n_ifs; j++) {
- REQ(ch, gen_iter);
- ch = CHILD(ch, 0);
- REQ(ch, gen_if);
-
- expression = ast_for_expr(c, CHILD(ch, 1));
- if (!expression)
- return NULL;
- asdl_seq_SET(ifs, j, expression);
- if (NCH(ch) == 3)
- ch = CHILD(ch, 2);
- }
- /* on exit, must guarantee that ch is a gen_for */
- if (TYPE(ch) == gen_iter)
- ch = CHILD(ch, 0);
- ge->ifs = ifs;
- }
- asdl_seq_SET(genexps, i, ge);
+ comprehension_ty ge;
+ asdl_seq *t;
+ expr_ty expression;
+ node *for_ch;
+
+ REQ(ch, gen_for);
+
+ for_ch = CHILD(ch, 1);
+ t = ast_for_exprlist(c, for_ch, Store);
+ if (!t)
+ return NULL;
+ expression = ast_for_expr(c, CHILD(ch, 3));
+ if (!expression)
+ return NULL;
+
+ /* Check the # of children rather than the length of t, since
+ (x for x, in ...) has 1 element in t, but still requires a Tuple. */
+ if (NCH(for_ch) == 1)
+ ge = comprehension((expr_ty)asdl_seq_GET(t, 0), expression,
+ NULL, c->c_arena);
+ else
+ ge = comprehension(Tuple(t, Store, LINENO(ch), ch->n_col_offset,
+ c->c_arena),
+ expression, NULL, c->c_arena);
+
+ if (!ge)
+ return NULL;
+
+ if (NCH(ch) == 5) {
+ int j, n_ifs;
+ asdl_seq *ifs;
+
+ ch = CHILD(ch, 4);
+ n_ifs = count_gen_ifs(ch);
+ if (n_ifs == -1)
+ return NULL;
+
+ ifs = asdl_seq_new(n_ifs, c->c_arena);
+ if (!ifs)
+ return NULL;
+
+ for (j = 0; j < n_ifs; j++) {
+ REQ(ch, gen_iter);
+ ch = CHILD(ch, 0);
+ REQ(ch, gen_if);
+
+ expression = ast_for_expr(c, CHILD(ch, 1));
+ if (!expression)
+ return NULL;
+ asdl_seq_SET(ifs, j, expression);
+ if (NCH(ch) == 3)
+ ch = CHILD(ch, 2);
+ }
+ /* on exit, must guarantee that ch is a gen_for */
+ if (TYPE(ch) == gen_iter)
+ ch = CHILD(ch, 0);
+ ge->ifs = ifs;
+ }
+ asdl_seq_SET(genexps, i, ge);
}
return GeneratorExp(elt, genexps, LINENO(n), n->n_col_offset, c->c_arena);
switch (TYPE(ch)) {
case NAME:
- /* All names start in Load context, but may later be
- changed. */
- return Name(NEW_IDENTIFIER(ch), Load, LINENO(n), n->n_col_offset, c->c_arena);
+ /* All names start in Load context, but may later be
+ changed. */
+ return Name(NEW_IDENTIFIER(ch), Load, LINENO(n), n->n_col_offset, c->c_arena);
case STRING: {
- PyObject *str = parsestrplus(c, n);
- if (!str)
- return NULL;
+ PyObject *str = parsestrplus(c, n);
+ if (!str)
+ return NULL;
- PyArena_AddPyObject(c->c_arena, str);
- return Str(str, LINENO(n), n->n_col_offset, c->c_arena);
+ PyArena_AddPyObject(c->c_arena, str);
+ return Str(str, LINENO(n), n->n_col_offset, c->c_arena);
}
case NUMBER: {
- PyObject *pynum = parsenumber(STR(ch));
- if (!pynum)
- return NULL;
+ PyObject *pynum = parsenumber(STR(ch));
+ if (!pynum)
+ return NULL;
- PyArena_AddPyObject(c->c_arena, pynum);
- return Num(pynum, LINENO(n), n->n_col_offset, c->c_arena);
+ PyArena_AddPyObject(c->c_arena, pynum);
+ return Num(pynum, LINENO(n), n->n_col_offset, c->c_arena);
}
case LPAR: /* some parenthesized expressions */
- ch = CHILD(n, 1);
-
- if (TYPE(ch) == RPAR)
- return Tuple(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena);
-
- if (TYPE(ch) == yield_expr)
- return ast_for_expr(c, ch);
-
- if ((NCH(ch) > 1) && (TYPE(CHILD(ch, 1)) == gen_for))
- return ast_for_genexp(c, ch);
-
- return ast_for_testlist_gexp(c, ch);
+ ch = CHILD(n, 1);
+
+ if (TYPE(ch) == RPAR)
+ return Tuple(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena);
+
+ if (TYPE(ch) == yield_expr)
+ return ast_for_expr(c, ch);
+
+ if ((NCH(ch) > 1) && (TYPE(CHILD(ch, 1)) == gen_for))
+ return ast_for_genexp(c, ch);
+
+ return ast_for_testlist_gexp(c, ch);
case LSQB: /* list (or list comprehension) */
- ch = CHILD(n, 1);
-
- if (TYPE(ch) == RSQB)
- return List(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena);
-
- REQ(ch, listmaker);
- if (NCH(ch) == 1 || TYPE(CHILD(ch, 1)) == COMMA) {
- asdl_seq *elts = seq_for_testlist(c, ch);
- if (!elts)
- return NULL;
-
- return List(elts, Load, LINENO(n), n->n_col_offset, c->c_arena);
- }
- else
- return ast_for_listcomp(c, ch);
+ ch = CHILD(n, 1);
+
+ if (TYPE(ch) == RSQB)
+ return List(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena);
+
+ REQ(ch, listmaker);
+ if (NCH(ch) == 1 || TYPE(CHILD(ch, 1)) == COMMA) {
+ asdl_seq *elts = seq_for_testlist(c, ch);
+ if (!elts)
+ return NULL;
+
+ return List(elts, Load, LINENO(n), n->n_col_offset, c->c_arena);
+ }
+ else
+ return ast_for_listcomp(c, ch);
case LBRACE: {
- /* dictmaker: test ':' test (',' test ':' test)* [','] */
- int i, size;
- asdl_seq *keys, *values;
-
- ch = CHILD(n, 1);
- size = (NCH(ch) + 1) / 4; /* +1 in case no trailing comma */
- keys = asdl_seq_new(size, c->c_arena);
- if (!keys)
- return NULL;
-
- values = asdl_seq_new(size, c->c_arena);
- if (!values)
- return NULL;
-
- for (i = 0; i < NCH(ch); i += 4) {
- expr_ty expression;
-
- expression = ast_for_expr(c, CHILD(ch, i));
- if (!expression)
- return NULL;
-
- asdl_seq_SET(keys, i / 4, expression);
-
- expression = ast_for_expr(c, CHILD(ch, i + 2));
- if (!expression)
- return NULL;
-
- asdl_seq_SET(values, i / 4, expression);
- }
- return Dict(keys, values, LINENO(n), n->n_col_offset, c->c_arena);
+ /* dictmaker: test ':' test (',' test ':' test)* [','] */
+ int i, size;
+ asdl_seq *keys, *values;
+
+ ch = CHILD(n, 1);
+ size = (NCH(ch) + 1) / 4; /* +1 in case no trailing comma */
+ keys = asdl_seq_new(size, c->c_arena);
+ if (!keys)
+ return NULL;
+
+ values = asdl_seq_new(size, c->c_arena);
+ if (!values)
+ return NULL;
+
+ for (i = 0; i < NCH(ch); i += 4) {
+ expr_ty expression;
+
+ expression = ast_for_expr(c, CHILD(ch, i));
+ if (!expression)
+ return NULL;
+
+ asdl_seq_SET(keys, i / 4, expression);
+
+ expression = ast_for_expr(c, CHILD(ch, i + 2));
+ if (!expression)
+ return NULL;
+
+ asdl_seq_SET(values, i / 4, expression);
+ }
+ return Dict(keys, values, LINENO(n), n->n_col_offset, c->c_arena);
}
case BACKQUOTE: { /* repr */
- expr_ty expression = ast_for_testlist(c, CHILD(n, 1));
- if (!expression)
- return NULL;
+ expr_ty expression = ast_for_testlist(c, CHILD(n, 1));
+ if (!expression)
+ return NULL;
- return Repr(expression, LINENO(n), n->n_col_offset, c->c_arena);
+ return Repr(expression, LINENO(n), n->n_col_offset, c->c_arena);
}
default:
- PyErr_Format(PyExc_SystemError, "unhandled atom %d", TYPE(ch));
- return NULL;
+ PyErr_Format(PyExc_SystemError, "unhandled atom %d", TYPE(ch));
+ return NULL;
}
}
*/
ch = CHILD(n, 0);
if (TYPE(ch) == DOT)
- return Ellipsis(c->c_arena);
+ return Ellipsis(c->c_arena);
if (NCH(n) == 1 && TYPE(ch) == test) {
- /* 'step' variable hold no significance in terms of being used over
- other vars */
- step = ast_for_expr(c, ch);
- if (!step)
- return NULL;
-
- return Index(step, c->c_arena);
+ /* 'step' variable hold no significance in terms of being used over
+ other vars */
+ step = ast_for_expr(c, ch);
+ if (!step)
+ return NULL;
+
+ return Index(step, c->c_arena);
}
if (TYPE(ch) == test) {
- lower = ast_for_expr(c, ch);
- if (!lower)
- return NULL;
+ lower = ast_for_expr(c, ch);
+ if (!lower)
+ return NULL;
}
/* If there's an upper bound it's in the second or third position. */
if (TYPE(ch) == COLON) {
- if (NCH(n) > 1) {
- node *n2 = CHILD(n, 1);
-
- if (TYPE(n2) == test) {
- upper = ast_for_expr(c, n2);
- if (!upper)
- return NULL;
- }
- }
+ if (NCH(n) > 1) {
+ node *n2 = CHILD(n, 1);
+
+ if (TYPE(n2) == test) {
+ upper = ast_for_expr(c, n2);
+ if (!upper)
+ return NULL;
+ }
+ }
} else if (NCH(n) > 2) {
- node *n2 = CHILD(n, 2);
+ node *n2 = CHILD(n, 2);
- if (TYPE(n2) == test) {
- upper = ast_for_expr(c, n2);
- if (!upper)
- return NULL;
- }
+ if (TYPE(n2) == test) {
+ upper = ast_for_expr(c, n2);
+ if (!upper)
+ return NULL;
+ }
}
ch = CHILD(n, NCH(n) - 1);
if (TYPE(ch) == sliceop) {
- if (NCH(ch) == 1) {
- /* No expression, so step is None */
- ch = CHILD(ch, 0);
- step = Name(new_identifier("None", c->c_arena), Load,
- LINENO(ch), ch->n_col_offset, c->c_arena);
- if (!step)
- return NULL;
- } else {
- ch = CHILD(ch, 1);
- if (TYPE(ch) == test) {
- step = ast_for_expr(c, ch);
- if (!step)
- return NULL;
- }
- }
+ if (NCH(ch) == 1) {
+ /* No expression, so step is None */
+ ch = CHILD(ch, 0);
+ step = Name(new_identifier("None", c->c_arena), Load,
+ LINENO(ch), ch->n_col_offset, c->c_arena);
+ if (!step)
+ return NULL;
+ } else {
+ ch = CHILD(ch, 1);
+ if (TYPE(ch) == test) {
+ step = ast_for_expr(c, ch);
+ if (!step)
+ return NULL;
+ }
+ }
}
return Slice(lower, upper, step, c->c_arena);
static expr_ty
ast_for_binop(struct compiling *c, const node *n)
{
- /* Must account for a sequence of expressions.
- How should A op B op C by represented?
- BinOp(BinOp(A, op, B), op, C).
- */
-
- int i, nops;
- expr_ty expr1, expr2, result;
- operator_ty newoperator;
-
- expr1 = ast_for_expr(c, CHILD(n, 0));
- if (!expr1)
- return NULL;
-
- expr2 = ast_for_expr(c, CHILD(n, 2));
- if (!expr2)
- return NULL;
-
- newoperator = get_operator(CHILD(n, 1));
- if (!newoperator)
- return NULL;
-
- result = BinOp(expr1, newoperator, expr2, LINENO(n), n->n_col_offset,
- c->c_arena);
- if (!result)
- return NULL;
-
- nops = (NCH(n) - 1) / 2;
- for (i = 1; i < nops; i++) {
- expr_ty tmp_result, tmp;
- const node* next_oper = CHILD(n, i * 2 + 1);
-
- newoperator = get_operator(next_oper);
- if (!newoperator)
- return NULL;
-
- tmp = ast_for_expr(c, CHILD(n, i * 2 + 2));
- if (!tmp)
- return NULL;
-
- tmp_result = BinOp(result, newoperator, tmp,
- LINENO(next_oper), next_oper->n_col_offset,
- c->c_arena);
- if (!tmp)
- return NULL;
- result = tmp_result;
- }
- return result;
+ /* Must account for a sequence of expressions.
+ How should A op B op C by represented?
+ BinOp(BinOp(A, op, B), op, C).
+ */
+
+ int i, nops;
+ expr_ty expr1, expr2, result;
+ operator_ty newoperator;
+
+ expr1 = ast_for_expr(c, CHILD(n, 0));
+ if (!expr1)
+ return NULL;
+
+ expr2 = ast_for_expr(c, CHILD(n, 2));
+ if (!expr2)
+ return NULL;
+
+ newoperator = get_operator(CHILD(n, 1));
+ if (!newoperator)
+ return NULL;
+
+ result = BinOp(expr1, newoperator, expr2, LINENO(n), n->n_col_offset,
+ c->c_arena);
+ if (!result)
+ return NULL;
+
+ nops = (NCH(n) - 1) / 2;
+ for (i = 1; i < nops; i++) {
+ expr_ty tmp_result, tmp;
+ const node* next_oper = CHILD(n, i * 2 + 1);
+
+ newoperator = get_operator(next_oper);
+ if (!newoperator)
+ return NULL;
+
+ tmp = ast_for_expr(c, CHILD(n, i * 2 + 2));
+ if (!tmp)
+ return NULL;
+
+ tmp_result = BinOp(result, newoperator, tmp,
+ LINENO(next_oper), next_oper->n_col_offset,
+ c->c_arena);
+ if (!tmp)
+ return NULL;
+ result = tmp_result;
+ }
+ return result;
}
static expr_ty
*/
REQ(n, trailer);
if (TYPE(CHILD(n, 0)) == LPAR) {
- if (NCH(n) == 2)
- return Call(left_expr, NULL, NULL, NULL, NULL, LINENO(n),
- n->n_col_offset, c->c_arena);
- else
- return ast_for_call(c, CHILD(n, 1), left_expr);
+ if (NCH(n) == 2)
+ return Call(left_expr, NULL, NULL, NULL, NULL, LINENO(n),
+ n->n_col_offset, c->c_arena);
+ else
+ return ast_for_call(c, CHILD(n, 1), left_expr);
}
else if (TYPE(CHILD(n, 0)) == DOT ) {
- return Attribute(left_expr, NEW_IDENTIFIER(CHILD(n, 1)), Load,
- LINENO(n), n->n_col_offset, c->c_arena);
+ return Attribute(left_expr, NEW_IDENTIFIER(CHILD(n, 1)), Load,
+ LINENO(n), n->n_col_offset, c->c_arena);
}
else {
- REQ(CHILD(n, 0), LSQB);
- REQ(CHILD(n, 2), RSQB);
- n = CHILD(n, 1);
- if (NCH(n) == 1) {
- slice_ty slc = ast_for_slice(c, CHILD(n, 0));
- if (!slc)
- return NULL;
- return Subscript(left_expr, slc, Load, LINENO(n), n->n_col_offset,
- c->c_arena);
- }
- else {
- /* The grammar is ambiguous here. The ambiguity is resolved
- by treating the sequence as a tuple literal if there are
- no slice features.
- */
- int j;
- slice_ty slc;
- expr_ty e;
- bool simple = true;
- asdl_seq *slices, *elts;
- slices = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena);
- if (!slices)
- return NULL;
- for (j = 0; j < NCH(n); j += 2) {
- slc = ast_for_slice(c, CHILD(n, j));
- if (!slc)
- return NULL;
- if (slc->kind != Index_kind)
- simple = false;
- asdl_seq_SET(slices, j / 2, slc);
- }
- if (!simple) {
- return Subscript(left_expr, ExtSlice(slices, c->c_arena),
- Load, LINENO(n), n->n_col_offset, c->c_arena);
- }
- /* extract Index values and put them in a Tuple */
- elts = asdl_seq_new(asdl_seq_LEN(slices), c->c_arena);
- if (!elts)
- return NULL;
- for (j = 0; j < asdl_seq_LEN(slices); ++j) {
- slc = (slice_ty)asdl_seq_GET(slices, j);
- assert(slc->kind == Index_kind && slc->v.Index.value);
- asdl_seq_SET(elts, j, slc->v.Index.value);
- }
- e = Tuple(elts, Load, LINENO(n), n->n_col_offset, c->c_arena);
- if (!e)
- return NULL;
- return Subscript(left_expr, Index(e, c->c_arena),
- Load, LINENO(n), n->n_col_offset, c->c_arena);
- }
+ REQ(CHILD(n, 0), LSQB);
+ REQ(CHILD(n, 2), RSQB);
+ n = CHILD(n, 1);
+ if (NCH(n) == 1) {
+ slice_ty slc = ast_for_slice(c, CHILD(n, 0));
+ if (!slc)
+ return NULL;
+ return Subscript(left_expr, slc, Load, LINENO(n), n->n_col_offset,
+ c->c_arena);
+ }
+ else {
+ /* The grammar is ambiguous here. The ambiguity is resolved
+ by treating the sequence as a tuple literal if there are
+ no slice features.
+ */
+ int j;
+ slice_ty slc;
+ expr_ty e;
+ bool simple = true;
+ asdl_seq *slices, *elts;
+ slices = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena);
+ if (!slices)
+ return NULL;
+ for (j = 0; j < NCH(n); j += 2) {
+ slc = ast_for_slice(c, CHILD(n, j));
+ if (!slc)
+ return NULL;
+ if (slc->kind != Index_kind)
+ simple = false;
+ asdl_seq_SET(slices, j / 2, slc);
+ }
+ if (!simple) {
+ return Subscript(left_expr, ExtSlice(slices, c->c_arena),
+ Load, LINENO(n), n->n_col_offset, c->c_arena);
+ }
+ /* extract Index values and put them in a Tuple */
+ elts = asdl_seq_new(asdl_seq_LEN(slices), c->c_arena);
+ if (!elts)
+ return NULL;
+ for (j = 0; j < asdl_seq_LEN(slices); ++j) {
+ slc = (slice_ty)asdl_seq_GET(slices, j);
+ assert(slc->kind == Index_kind && slc->v.Index.value);
+ asdl_seq_SET(elts, j, slc->v.Index.value);
+ }
+ e = Tuple(elts, Load, LINENO(n), n->n_col_offset, c->c_arena);
+ if (!e)
+ return NULL;
+ return Subscript(left_expr, Index(e, c->c_arena),
+ Load, LINENO(n), n->n_col_offset, c->c_arena);
+ }
}
}
expr_ty expression;
/* If the unary - operator is applied to a constant, don't generate
- a UNARY_NEGATIVE opcode. Just store the approriate value as a
+ a UNARY_NEGATIVE opcode. Just store the approriate value as a
constant. The peephole optimizer already does something like
this but it doesn't handle the case where the constant is
(sys.maxint - 1). In that case, we want a PyIntObject, not a
PyLongObject.
*/
if (TYPE(CHILD(n, 0)) == MINUS
- && NCH(n) == 2
- && TYPE((pfactor = CHILD(n, 1))) == factor
- && NCH(pfactor) == 1
- && TYPE((ppower = CHILD(pfactor, 0))) == power
- && NCH(ppower) == 1
- && TYPE((patom = CHILD(ppower, 0))) == atom
- && TYPE((pnum = CHILD(patom, 0))) == NUMBER) {
- char *s = PyObject_MALLOC(strlen(STR(pnum)) + 2);
- if (s == NULL)
- return NULL;
- s[0] = '-';
- strcpy(s + 1, STR(pnum));
- PyObject_FREE(STR(pnum));
- STR(pnum) = s;
- return ast_for_atom(c, patom);
+ && NCH(n) == 2
+ && TYPE((pfactor = CHILD(n, 1))) == factor
+ && NCH(pfactor) == 1
+ && TYPE((ppower = CHILD(pfactor, 0))) == power
+ && NCH(ppower) == 1
+ && TYPE((patom = CHILD(ppower, 0))) == atom
+ && TYPE((pnum = CHILD(patom, 0))) == NUMBER) {
+ char *s = PyObject_MALLOC(strlen(STR(pnum)) + 2);
+ if (s == NULL)
+ return NULL;
+ s[0] = '-';
+ strcpy(s + 1, STR(pnum));
+ PyObject_FREE(STR(pnum));
+ STR(pnum) = s;
+ return ast_for_atom(c, patom);
}
expression = ast_for_expr(c, CHILD(n, 1));
if (!expression)
- return NULL;
+ return NULL;
switch (TYPE(CHILD(n, 0))) {
- case PLUS:
- return UnaryOp(UAdd, expression, LINENO(n), n->n_col_offset,
- c->c_arena);
- case MINUS:
- return UnaryOp(USub, expression, LINENO(n), n->n_col_offset,
- c->c_arena);
- case TILDE:
- return UnaryOp(Invert, expression, LINENO(n),
- n->n_col_offset, c->c_arena);
+ case PLUS:
+ return UnaryOp(UAdd, expression, LINENO(n), n->n_col_offset,
+ c->c_arena);
+ case MINUS:
+ return UnaryOp(USub, expression, LINENO(n), n->n_col_offset,
+ c->c_arena);
+ case TILDE:
+ return UnaryOp(Invert, expression, LINENO(n),
+ n->n_col_offset, c->c_arena);
}
PyErr_Format(PyExc_SystemError, "unhandled factor: %d",
- TYPE(CHILD(n, 0)));
+ TYPE(CHILD(n, 0)));
return NULL;
}
REQ(n, power);
e = ast_for_atom(c, CHILD(n, 0));
if (!e)
- return NULL;
+ return NULL;
if (NCH(n) == 1)
- return e;
+ return e;
for (i = 1; i < NCH(n); i++) {
- node *ch = CHILD(n, i);
- if (TYPE(ch) != trailer)
- break;
- tmp = ast_for_trailer(c, ch, e);
- if (!tmp)
- return NULL;
- tmp->lineno = e->lineno;
- tmp->col_offset = e->col_offset;
- e = tmp;
+ node *ch = CHILD(n, i);
+ if (TYPE(ch) != trailer)
+ break;
+ tmp = ast_for_trailer(c, ch, e);
+ if (!tmp)
+ return NULL;
+ tmp->lineno = e->lineno;
+ tmp->col_offset = e->col_offset;
+ e = tmp;
}
if (TYPE(CHILD(n, NCH(n) - 1)) == factor) {
- expr_ty f = ast_for_expr(c, CHILD(n, NCH(n) - 1));
- if (!f)
- return NULL;
- tmp = BinOp(e, Pow, f, LINENO(n), n->n_col_offset, c->c_arena);
- if (!tmp)
- return NULL;
- e = tmp;
+ expr_ty f = ast_for_expr(c, CHILD(n, NCH(n) - 1));
+ if (!f)
+ return NULL;
+ tmp = BinOp(e, Pow, f, LINENO(n), n->n_col_offset, c->c_arena);
+ if (!tmp)
+ return NULL;
+ e = tmp;
}
return e;
}
loop:
switch (TYPE(n)) {
- case test:
- case old_test:
- if (TYPE(CHILD(n, 0)) == lambdef ||
- TYPE(CHILD(n, 0)) == old_lambdef)
- return ast_for_lambdef(c, CHILD(n, 0));
- else if (NCH(n) > 1)
- return ast_for_ifexpr(c, n);
- /* Fallthrough */
- case or_test:
- case and_test:
- if (NCH(n) == 1) {
- n = CHILD(n, 0);
- goto loop;
- }
- seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena);
- if (!seq)
- return NULL;
- for (i = 0; i < NCH(n); i += 2) {
- expr_ty e = ast_for_expr(c, CHILD(n, i));
- if (!e)
- return NULL;
- asdl_seq_SET(seq, i / 2, e);
- }
- if (!strcmp(STR(CHILD(n, 1)), "and"))
- return BoolOp(And, seq, LINENO(n), n->n_col_offset,
- c->c_arena);
- assert(!strcmp(STR(CHILD(n, 1)), "or"));
- return BoolOp(Or, seq, LINENO(n), n->n_col_offset, c->c_arena);
- case not_test:
- if (NCH(n) == 1) {
- n = CHILD(n, 0);
- goto loop;
- }
- else {
- expr_ty expression = ast_for_expr(c, CHILD(n, 1));
- if (!expression)
- return NULL;
-
- return UnaryOp(Not, expression, LINENO(n), n->n_col_offset,
- c->c_arena);
- }
- case comparison:
- if (NCH(n) == 1) {
- n = CHILD(n, 0);
- goto loop;
- }
- else {
- expr_ty expression;
- asdl_int_seq *ops;
- asdl_seq *cmps;
- ops = asdl_int_seq_new(NCH(n) / 2, c->c_arena);
- if (!ops)
- return NULL;
- cmps = asdl_seq_new(NCH(n) / 2, c->c_arena);
- if (!cmps) {
- return NULL;
- }
- for (i = 1; i < NCH(n); i += 2) {
- cmpop_ty newoperator;
-
- newoperator = ast_for_comp_op(CHILD(n, i));
- if (!newoperator) {
- return NULL;
- }
-
- expression = ast_for_expr(c, CHILD(n, i + 1));
- if (!expression) {
- return NULL;
- }
-
- asdl_seq_SET(ops, i / 2, newoperator);
- asdl_seq_SET(cmps, i / 2, expression);
- }
- expression = ast_for_expr(c, CHILD(n, 0));
- if (!expression) {
- return NULL;
- }
-
- return Compare(expression, ops, cmps, LINENO(n),
- n->n_col_offset, c->c_arena);
- }
- break;
-
- /* The next five cases all handle BinOps. The main body of code
- is the same in each case, but the switch turned inside out to
- reuse the code for each type of operator.
- */
- case expr:
- case xor_expr:
- case and_expr:
- case shift_expr:
- case arith_expr:
- case term:
- if (NCH(n) == 1) {
- n = CHILD(n, 0);
- goto loop;
- }
- return ast_for_binop(c, n);
- case yield_expr: {
- expr_ty exp = NULL;
- if (NCH(n) == 2) {
- exp = ast_for_testlist(c, CHILD(n, 1));
- if (!exp)
- return NULL;
- }
- return Yield(exp, LINENO(n), n->n_col_offset, c->c_arena);
- }
- case factor:
- if (NCH(n) == 1) {
- n = CHILD(n, 0);
- goto loop;
- }
- return ast_for_factor(c, n);
- case power:
- return ast_for_power(c, n);
- default:
- PyErr_Format(PyExc_SystemError, "unhandled expr: %d", TYPE(n));
- return NULL;
+ case test:
+ case old_test:
+ if (TYPE(CHILD(n, 0)) == lambdef ||
+ TYPE(CHILD(n, 0)) == old_lambdef)
+ return ast_for_lambdef(c, CHILD(n, 0));
+ else if (NCH(n) > 1)
+ return ast_for_ifexpr(c, n);
+ /* Fallthrough */
+ case or_test:
+ case and_test:
+ if (NCH(n) == 1) {
+ n = CHILD(n, 0);
+ goto loop;
+ }
+ seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena);
+ if (!seq)
+ return NULL;
+ for (i = 0; i < NCH(n); i += 2) {
+ expr_ty e = ast_for_expr(c, CHILD(n, i));
+ if (!e)
+ return NULL;
+ asdl_seq_SET(seq, i / 2, e);
+ }
+ if (!strcmp(STR(CHILD(n, 1)), "and"))
+ return BoolOp(And, seq, LINENO(n), n->n_col_offset,
+ c->c_arena);
+ assert(!strcmp(STR(CHILD(n, 1)), "or"));
+ return BoolOp(Or, seq, LINENO(n), n->n_col_offset, c->c_arena);
+ case not_test:
+ if (NCH(n) == 1) {
+ n = CHILD(n, 0);
+ goto loop;
+ }
+ else {
+ expr_ty expression = ast_for_expr(c, CHILD(n, 1));
+ if (!expression)
+ return NULL;
+
+ return UnaryOp(Not, expression, LINENO(n), n->n_col_offset,
+ c->c_arena);
+ }
+ case comparison:
+ if (NCH(n) == 1) {
+ n = CHILD(n, 0);
+ goto loop;
+ }
+ else {
+ expr_ty expression;
+ asdl_int_seq *ops;
+ asdl_seq *cmps;
+ ops = asdl_int_seq_new(NCH(n) / 2, c->c_arena);
+ if (!ops)
+ return NULL;
+ cmps = asdl_seq_new(NCH(n) / 2, c->c_arena);
+ if (!cmps) {
+ return NULL;
+ }
+ for (i = 1; i < NCH(n); i += 2) {
+ cmpop_ty newoperator;
+
+ newoperator = ast_for_comp_op(CHILD(n, i));
+ if (!newoperator) {
+ return NULL;
+ }
+
+ expression = ast_for_expr(c, CHILD(n, i + 1));
+ if (!expression) {
+ return NULL;
+ }
+
+ asdl_seq_SET(ops, i / 2, newoperator);
+ asdl_seq_SET(cmps, i / 2, expression);
+ }
+ expression = ast_for_expr(c, CHILD(n, 0));
+ if (!expression) {
+ return NULL;
+ }
+
+ return Compare(expression, ops, cmps, LINENO(n),
+ n->n_col_offset, c->c_arena);
+ }
+ break;
+
+ /* The next five cases all handle BinOps. The main body of code
+ is the same in each case, but the switch turned inside out to
+ reuse the code for each type of operator.
+ */
+ case expr:
+ case xor_expr:
+ case and_expr:
+ case shift_expr:
+ case arith_expr:
+ case term:
+ if (NCH(n) == 1) {
+ n = CHILD(n, 0);
+ goto loop;
+ }
+ return ast_for_binop(c, n);
+ case yield_expr: {
+ expr_ty exp = NULL;
+ if (NCH(n) == 2) {
+ exp = ast_for_testlist(c, CHILD(n, 1));
+ if (!exp)
+ return NULL;
+ }
+ return Yield(exp, LINENO(n), n->n_col_offset, c->c_arena);
+ }
+ case factor:
+ if (NCH(n) == 1) {
+ n = CHILD(n, 0);
+ goto loop;
+ }
+ return ast_for_factor(c, n);
+ case power:
+ return ast_for_power(c, n);
+ default:
+ PyErr_Format(PyExc_SystemError, "unhandled expr: %d", TYPE(n));
+ return NULL;
}
/* should never get here unless if error is set */
return NULL;
{
/*
arglist: (argument ',')* (argument [',']| '*' test [',' '**' test]
- | '**' test)
- argument: [test '='] test [gen_for] # Really [keyword '='] test
+ | '**' test)
+ argument: [test '='] test [gen_for] # Really [keyword '='] test
*/
int i, nargs, nkeywords, ngens;
nkeywords = 0;
ngens = 0;
for (i = 0; i < NCH(n); i++) {
- node *ch = CHILD(n, i);
- if (TYPE(ch) == argument) {
- if (NCH(ch) == 1)
- nargs++;
- else if (TYPE(CHILD(ch, 1)) == gen_for)
- ngens++;
- else
- nkeywords++;
- }
+ node *ch = CHILD(n, i);
+ if (TYPE(ch) == argument) {
+ if (NCH(ch) == 1)
+ nargs++;
+ else if (TYPE(CHILD(ch, 1)) == gen_for)
+ ngens++;
+ else
+ nkeywords++;
+ }
}
if (ngens > 1 || (ngens && (nargs || nkeywords))) {
- ast_error(n, "Generator expression must be parenthesized "
- "if not sole argument");
- return NULL;
+ ast_error(n, "Generator expression must be parenthesized "
+ "if not sole argument");
+ return NULL;
}
if (nargs + nkeywords + ngens > 255) {
args = asdl_seq_new(nargs + ngens, c->c_arena);
if (!args)
- return NULL;
+ return NULL;
keywords = asdl_seq_new(nkeywords, c->c_arena);
if (!keywords)
- return NULL;
+ return NULL;
nargs = 0;
nkeywords = 0;
for (i = 0; i < NCH(n); i++) {
- node *ch = CHILD(n, i);
- if (TYPE(ch) == argument) {
- expr_ty e;
- if (NCH(ch) == 1) {
- if (nkeywords) {
- ast_error(CHILD(ch, 0),
- "non-keyword arg after keyword arg");
- return NULL;
- }
- e = ast_for_expr(c, CHILD(ch, 0));
- if (!e)
- return NULL;
- asdl_seq_SET(args, nargs++, e);
- }
- else if (TYPE(CHILD(ch, 1)) == gen_for) {
- e = ast_for_genexp(c, ch);
- if (!e)
- return NULL;
- asdl_seq_SET(args, nargs++, e);
- }
- else {
- keyword_ty kw;
- identifier key;
-
- /* CHILD(ch, 0) is test, but must be an identifier? */
- e = ast_for_expr(c, CHILD(ch, 0));
- if (!e)
- return NULL;
- /* f(lambda x: x[0] = 3) ends up getting parsed with
- * LHS test = lambda x: x[0], and RHS test = 3.
- * SF bug 132313 points out that complaining about a keyword
- * then is very confusing.
- */
- if (e->kind == Lambda_kind) {
- ast_error(CHILD(ch, 0), "lambda cannot contain assignment");
- return NULL;
- } else if (e->kind != Name_kind) {
- ast_error(CHILD(ch, 0), "keyword can't be an expression");
- return NULL;
- }
- key = e->v.Name.id;
- e = ast_for_expr(c, CHILD(ch, 2));
- if (!e)
- return NULL;
- kw = keyword(key, e, c->c_arena);
- if (!kw)
- return NULL;
- asdl_seq_SET(keywords, nkeywords++, kw);
- }
- }
- else if (TYPE(ch) == STAR) {
- vararg = ast_for_expr(c, CHILD(n, i+1));
- i++;
- }
- else if (TYPE(ch) == DOUBLESTAR) {
- kwarg = ast_for_expr(c, CHILD(n, i+1));
- i++;
- }
+ node *ch = CHILD(n, i);
+ if (TYPE(ch) == argument) {
+ expr_ty e;
+ if (NCH(ch) == 1) {
+ if (nkeywords) {
+ ast_error(CHILD(ch, 0),
+ "non-keyword arg after keyword arg");
+ return NULL;
+ }
+ e = ast_for_expr(c, CHILD(ch, 0));
+ if (!e)
+ return NULL;
+ asdl_seq_SET(args, nargs++, e);
+ }
+ else if (TYPE(CHILD(ch, 1)) == gen_for) {
+ e = ast_for_genexp(c, ch);
+ if (!e)
+ return NULL;
+ asdl_seq_SET(args, nargs++, e);
+ }
+ else {
+ keyword_ty kw;
+ identifier key;
+
+ /* CHILD(ch, 0) is test, but must be an identifier? */
+ e = ast_for_expr(c, CHILD(ch, 0));
+ if (!e)
+ return NULL;
+ /* f(lambda x: x[0] = 3) ends up getting parsed with
+ * LHS test = lambda x: x[0], and RHS test = 3.
+ * SF bug 132313 points out that complaining about a keyword
+ * then is very confusing.
+ */
+ if (e->kind == Lambda_kind) {
+ ast_error(CHILD(ch, 0), "lambda cannot contain assignment");
+ return NULL;
+ } else if (e->kind != Name_kind) {
+ ast_error(CHILD(ch, 0), "keyword can't be an expression");
+ return NULL;
+ }
+ key = e->v.Name.id;
+ e = ast_for_expr(c, CHILD(ch, 2));
+ if (!e)
+ return NULL;
+ kw = keyword(key, e, c->c_arena);
+ if (!kw)
+ return NULL;
+ asdl_seq_SET(keywords, nkeywords++, kw);
+ }
+ }
+ else if (TYPE(ch) == STAR) {
+ vararg = ast_for_expr(c, CHILD(n, i+1));
+ i++;
+ }
+ else if (TYPE(ch) == DOUBLESTAR) {
+ kwarg = ast_for_expr(c, CHILD(n, i+1));
+ i++;
+ }
}
return Call(func, args, keywords, vararg, kwarg, func->lineno, func->col_offset, c->c_arena);
/* testlist1: test (',' test)* */
assert(NCH(n) > 0);
if (TYPE(n) == testlist_gexp) {
- if (NCH(n) > 1)
- assert(TYPE(CHILD(n, 1)) != gen_for);
+ if (NCH(n) > 1)
+ assert(TYPE(CHILD(n, 1)) != gen_for);
}
else {
- assert(TYPE(n) == testlist ||
- TYPE(n) == testlist_safe ||
- TYPE(n) == testlist1);
+ assert(TYPE(n) == testlist ||
+ TYPE(n) == testlist_safe ||
+ TYPE(n) == testlist1);
}
if (NCH(n) == 1)
- return ast_for_expr(c, CHILD(n, 0));
+ return ast_for_expr(c, CHILD(n, 0));
else {
- asdl_seq *tmp = seq_for_testlist(c, n);
- if (!tmp)
- return NULL;
- return Tuple(tmp, Load, LINENO(n), n->n_col_offset, c->c_arena);
+ asdl_seq *tmp = seq_for_testlist(c, n);
+ if (!tmp)
+ return NULL;
+ return Tuple(tmp, Load, LINENO(n), n->n_col_offset, c->c_arena);
}
}
/* argument: test [ gen_for ] */
assert(TYPE(n) == testlist_gexp || TYPE(n) == argument);
if (NCH(n) > 1 && TYPE(CHILD(n, 1)) == gen_for)
- return ast_for_genexp(c, n);
+ return ast_for_genexp(c, n);
return ast_for_testlist(c, n);
}
assert(NCH(n) > 0);
REQ(n, testlist);
if (NCH(n) == 1) {
- expr_ty base;
- asdl_seq *bases = asdl_seq_new(1, c->c_arena);
- if (!bases)
- return NULL;
- base = ast_for_expr(c, CHILD(n, 0));
- if (!base)
- return NULL;
- asdl_seq_SET(bases, 0, base);
- return bases;
+ expr_ty base;
+ asdl_seq *bases = asdl_seq_new(1, c->c_arena);
+ if (!bases)
+ return NULL;
+ base = ast_for_expr(c, CHILD(n, 0));
+ if (!base)
+ return NULL;
+ asdl_seq_SET(bases, 0, base);
+ return bases;
}
return seq_for_testlist(c, n);
{
REQ(n, expr_stmt);
/* expr_stmt: testlist (augassign (yield_expr|testlist)
- | ('=' (yield_expr|testlist))*)
+ | ('=' (yield_expr|testlist))*)
testlist: test (',' test)* [',']
augassign: '+=' | '-=' | '*=' | '/=' | '%=' | '&=' | '|=' | '^='
- | '<<=' | '>>=' | '**=' | '//='
+ | '<<=' | '>>=' | '**=' | '//='
test: ... here starts the operator precendence dance
*/
if (NCH(n) == 1) {
- expr_ty e = ast_for_testlist(c, CHILD(n, 0));
- if (!e)
- return NULL;
+ expr_ty e = ast_for_testlist(c, CHILD(n, 0));
+ if (!e)
+ return NULL;
- return Expr(e, LINENO(n), n->n_col_offset, c->c_arena);
+ return Expr(e, LINENO(n), n->n_col_offset, c->c_arena);
}
else if (TYPE(CHILD(n, 1)) == augassign) {
- expr_ty expr1, expr2;
- operator_ty newoperator;
- node *ch = CHILD(n, 0);
-
- expr1 = ast_for_testlist(c, ch);
- if (!expr1)
- return NULL;
- /* TODO(nas): Remove duplicated error checks (set_context does it) */
- switch (expr1->kind) {
- case GeneratorExp_kind:
- ast_error(ch, "augmented assignment to generator "
- "expression not possible");
- return NULL;
- case Yield_kind:
- ast_error(ch, "augmented assignment to yield "
- "expression not possible");
- return NULL;
- case Name_kind: {
- const char *var_name = PyString_AS_STRING(expr1->v.Name.id);
- if (var_name[0] == 'N' && !strcmp(var_name, "None")) {
- ast_error(ch, "assignment to None");
- return NULL;
- }
- break;
- }
- case Attribute_kind:
- case Subscript_kind:
- break;
- default:
- ast_error(ch, "illegal expression for augmented "
- "assignment");
- return NULL;
- }
- set_context(expr1, Store, ch);
-
- ch = CHILD(n, 2);
- if (TYPE(ch) == testlist)
- expr2 = ast_for_testlist(c, ch);
- else
- expr2 = ast_for_expr(c, ch);
- if (!expr2)
- return NULL;
-
- newoperator = ast_for_augassign(CHILD(n, 1));
- if (!newoperator)
- return NULL;
-
- return AugAssign(expr1, newoperator, expr2, LINENO(n), n->n_col_offset, c->c_arena);
+ expr_ty expr1, expr2;
+ operator_ty newoperator;
+ node *ch = CHILD(n, 0);
+
+ expr1 = ast_for_testlist(c, ch);
+ if (!expr1)
+ return NULL;
+ /* TODO(nas): Remove duplicated error checks (set_context does it) */
+ switch (expr1->kind) {
+ case GeneratorExp_kind:
+ ast_error(ch, "augmented assignment to generator "
+ "expression not possible");
+ return NULL;
+ case Yield_kind:
+ ast_error(ch, "augmented assignment to yield "
+ "expression not possible");
+ return NULL;
+ case Name_kind: {
+ const char *var_name = PyString_AS_STRING(expr1->v.Name.id);
+ if (var_name[0] == 'N' && !strcmp(var_name, "None")) {
+ ast_error(ch, "assignment to None");
+ return NULL;
+ }
+ break;
+ }
+ case Attribute_kind:
+ case Subscript_kind:
+ break;
+ default:
+ ast_error(ch, "illegal expression for augmented "
+ "assignment");
+ return NULL;
+ }
+ set_context(expr1, Store, ch);
+
+ ch = CHILD(n, 2);
+ if (TYPE(ch) == testlist)
+ expr2 = ast_for_testlist(c, ch);
+ else
+ expr2 = ast_for_expr(c, ch);
+ if (!expr2)
+ return NULL;
+
+ newoperator = ast_for_augassign(CHILD(n, 1));
+ if (!newoperator)
+ return NULL;
+
+ return AugAssign(expr1, newoperator, expr2, LINENO(n), n->n_col_offset, c->c_arena);
}
else {
- int i;
- asdl_seq *targets;
- node *value;
- expr_ty expression;
-
- /* a normal assignment */
- REQ(CHILD(n, 1), EQUAL);
- targets = asdl_seq_new(NCH(n) / 2, c->c_arena);
- if (!targets)
- return NULL;
- for (i = 0; i < NCH(n) - 2; i += 2) {
- expr_ty e;
- node *ch = CHILD(n, i);
- if (TYPE(ch) == yield_expr) {
- ast_error(ch, "assignment to yield expression not possible");
- return NULL;
- }
- e = ast_for_testlist(c, ch);
-
- /* set context to assign */
- if (!e)
- return NULL;
-
- if (!set_context(e, Store, CHILD(n, i)))
- return NULL;
-
- asdl_seq_SET(targets, i / 2, e);
- }
- value = CHILD(n, NCH(n) - 1);
- if (TYPE(value) == testlist)
- expression = ast_for_testlist(c, value);
- else
- expression = ast_for_expr(c, value);
- if (!expression)
- return NULL;
- return Assign(targets, expression, LINENO(n), n->n_col_offset, c->c_arena);
+ int i;
+ asdl_seq *targets;
+ node *value;
+ expr_ty expression;
+
+ /* a normal assignment */
+ REQ(CHILD(n, 1), EQUAL);
+ targets = asdl_seq_new(NCH(n) / 2, c->c_arena);
+ if (!targets)
+ return NULL;
+ for (i = 0; i < NCH(n) - 2; i += 2) {
+ expr_ty e;
+ node *ch = CHILD(n, i);
+ if (TYPE(ch) == yield_expr) {
+ ast_error(ch, "assignment to yield expression not possible");
+ return NULL;
+ }
+ e = ast_for_testlist(c, ch);
+
+ /* set context to assign */
+ if (!e)
+ return NULL;
+
+ if (!set_context(e, Store, CHILD(n, i)))
+ return NULL;
+
+ asdl_seq_SET(targets, i / 2, e);
+ }
+ value = CHILD(n, NCH(n) - 1);
+ if (TYPE(value) == testlist)
+ expression = ast_for_testlist(c, value);
+ else
+ expression = ast_for_expr(c, value);
+ if (!expression)
+ return NULL;
+ return Assign(targets, expression, LINENO(n), n->n_col_offset, c->c_arena);
}
}
ast_for_print_stmt(struct compiling *c, const node *n)
{
/* print_stmt: 'print' ( [ test (',' test)* [','] ]
- | '>>' test [ (',' test)+ [','] ] )
+ | '>>' test [ (',' test)+ [','] ] )
*/
expr_ty dest = NULL, expression;
asdl_seq *seq;
REQ(n, print_stmt);
if (NCH(n) >= 2 && TYPE(CHILD(n, 1)) == RIGHTSHIFT) {
- dest = ast_for_expr(c, CHILD(n, 2));
- if (!dest)
- return NULL;
- start = 4;
+ dest = ast_for_expr(c, CHILD(n, 2));
+ if (!dest)
+ return NULL;
+ start = 4;
}
seq = asdl_seq_new((NCH(n) + 1 - start) / 2, c->c_arena);
if (!seq)
- return NULL;
+ return NULL;
for (i = start, j = 0; i < NCH(n); i += 2, ++j) {
- expression = ast_for_expr(c, CHILD(n, i));
- if (!expression)
- return NULL;
- asdl_seq_SET(seq, j, expression);
+ expression = ast_for_expr(c, CHILD(n, i));
+ if (!expression)
+ return NULL;
+ asdl_seq_SET(seq, j, expression);
}
nl = (TYPE(CHILD(n, NCH(n) - 1)) == COMMA) ? false : true;
return Print(dest, seq, nl, LINENO(n), n->n_col_offset, c->c_arena);
seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena);
if (!seq)
- return NULL;
+ return NULL;
for (i = 0; i < NCH(n); i += 2) {
- e = ast_for_expr(c, CHILD(n, i));
- if (!e)
- return NULL;
- asdl_seq_SET(seq, i / 2, e);
- if (context && !set_context(e, context, CHILD(n, i)))
- return NULL;
+ e = ast_for_expr(c, CHILD(n, i));
+ if (!e)
+ return NULL;
+ asdl_seq_SET(seq, i / 2, e);
+ if (context && !set_context(e, context, CHILD(n, i)))
+ return NULL;
}
return seq;
}
expr_list = ast_for_exprlist(c, CHILD(n, 1), Del);
if (!expr_list)
- return NULL;
+ return NULL;
return Delete(expr_list, LINENO(n), n->n_col_offset, c->c_arena);
}
{
/*
flow_stmt: break_stmt | continue_stmt | return_stmt | raise_stmt
- | yield_stmt
+ | yield_stmt
break_stmt: 'break'
continue_stmt: 'continue'
return_stmt: 'return' [testlist]
REQ(n, flow_stmt);
ch = CHILD(n, 0);
switch (TYPE(ch)) {
- case break_stmt:
- return Break(LINENO(n), n->n_col_offset, c->c_arena);
- case continue_stmt:
- return Continue(LINENO(n), n->n_col_offset, c->c_arena);
- case yield_stmt: { /* will reduce to yield_expr */
- expr_ty exp = ast_for_expr(c, CHILD(ch, 0));
- if (!exp)
- return NULL;
- return Expr(exp, LINENO(n), n->n_col_offset, c->c_arena);
- }
- case return_stmt:
- if (NCH(ch) == 1)
- return Return(NULL, LINENO(n), n->n_col_offset, c->c_arena);
- else {
- expr_ty expression = ast_for_testlist(c, CHILD(ch, 1));
- if (!expression)
- return NULL;
- return Return(expression, LINENO(n), n->n_col_offset, c->c_arena);
- }
- case raise_stmt:
- if (NCH(ch) == 1)
- return Raise(NULL, NULL, NULL, LINENO(n), n->n_col_offset, c->c_arena);
- else if (NCH(ch) == 2) {
- expr_ty expression = ast_for_expr(c, CHILD(ch, 1));
- if (!expression)
- return NULL;
- return Raise(expression, NULL, NULL, LINENO(n), n->n_col_offset, c->c_arena);
- }
- else if (NCH(ch) == 4) {
- expr_ty expr1, expr2;
-
- expr1 = ast_for_expr(c, CHILD(ch, 1));
- if (!expr1)
- return NULL;
- expr2 = ast_for_expr(c, CHILD(ch, 3));
- if (!expr2)
- return NULL;
-
- return Raise(expr1, expr2, NULL, LINENO(n), n->n_col_offset, c->c_arena);
- }
- else if (NCH(ch) == 6) {
- expr_ty expr1, expr2, expr3;
-
- expr1 = ast_for_expr(c, CHILD(ch, 1));
- if (!expr1)
- return NULL;
- expr2 = ast_for_expr(c, CHILD(ch, 3));
- if (!expr2)
- return NULL;
- expr3 = ast_for_expr(c, CHILD(ch, 5));
- if (!expr3)
- return NULL;
-
- return Raise(expr1, expr2, expr3, LINENO(n), n->n_col_offset, c->c_arena);
- }
- default:
- PyErr_Format(PyExc_SystemError,
- "unexpected flow_stmt: %d", TYPE(ch));
- return NULL;
+ case break_stmt:
+ return Break(LINENO(n), n->n_col_offset, c->c_arena);
+ case continue_stmt:
+ return Continue(LINENO(n), n->n_col_offset, c->c_arena);
+ case yield_stmt: { /* will reduce to yield_expr */
+ expr_ty exp = ast_for_expr(c, CHILD(ch, 0));
+ if (!exp)
+ return NULL;
+ return Expr(exp, LINENO(n), n->n_col_offset, c->c_arena);
+ }
+ case return_stmt:
+ if (NCH(ch) == 1)
+ return Return(NULL, LINENO(n), n->n_col_offset, c->c_arena);
+ else {
+ expr_ty expression = ast_for_testlist(c, CHILD(ch, 1));
+ if (!expression)
+ return NULL;
+ return Return(expression, LINENO(n), n->n_col_offset, c->c_arena);
+ }
+ case raise_stmt:
+ if (NCH(ch) == 1)
+ return Raise(NULL, NULL, NULL, LINENO(n), n->n_col_offset, c->c_arena);
+ else if (NCH(ch) == 2) {
+ expr_ty expression = ast_for_expr(c, CHILD(ch, 1));
+ if (!expression)
+ return NULL;
+ return Raise(expression, NULL, NULL, LINENO(n), n->n_col_offset, c->c_arena);
+ }
+ else if (NCH(ch) == 4) {
+ expr_ty expr1, expr2;
+
+ expr1 = ast_for_expr(c, CHILD(ch, 1));
+ if (!expr1)
+ return NULL;
+ expr2 = ast_for_expr(c, CHILD(ch, 3));
+ if (!expr2)
+ return NULL;
+
+ return Raise(expr1, expr2, NULL, LINENO(n), n->n_col_offset, c->c_arena);
+ }
+ else if (NCH(ch) == 6) {
+ expr_ty expr1, expr2, expr3;
+
+ expr1 = ast_for_expr(c, CHILD(ch, 1));
+ if (!expr1)
+ return NULL;
+ expr2 = ast_for_expr(c, CHILD(ch, 3));
+ if (!expr2)
+ return NULL;
+ expr3 = ast_for_expr(c, CHILD(ch, 5));
+ if (!expr3)
+ return NULL;
+
+ return Raise(expr1, expr2, expr3, LINENO(n), n->n_col_offset, c->c_arena);
+ }
+ default:
+ PyErr_Format(PyExc_SystemError,
+ "unexpected flow_stmt: %d", TYPE(ch));
+ return NULL;
}
PyErr_SetString(PyExc_SystemError, "unhandled flow statement");
loop:
switch (TYPE(n)) {
- case import_as_name:
- str = NULL;
- if (NCH(n) == 3) {
- str = NEW_IDENTIFIER(CHILD(n, 2));
- }
- return alias(NEW_IDENTIFIER(CHILD(n, 0)), str, c->c_arena);
- case dotted_as_name:
- if (NCH(n) == 1) {
- n = CHILD(n, 0);
- goto loop;
- }
- else {
- alias_ty a = alias_for_import_name(c, CHILD(n, 0));
- if (!a)
- return NULL;
- assert(!a->asname);
- a->asname = NEW_IDENTIFIER(CHILD(n, 2));
- return a;
- }
- break;
- case dotted_name:
- if (NCH(n) == 1)
- return alias(NEW_IDENTIFIER(CHILD(n, 0)), NULL, c->c_arena);
- else {
- /* Create a string of the form "a.b.c" */
- int i;
- size_t len;
- char *s;
-
- len = 0;
- for (i = 0; i < NCH(n); i += 2)
- /* length of string plus one for the dot */
- len += strlen(STR(CHILD(n, i))) + 1;
- len--; /* the last name doesn't have a dot */
- str = PyString_FromStringAndSize(NULL, len);
- if (!str)
- return NULL;
- s = PyString_AS_STRING(str);
- if (!s)
- return NULL;
- for (i = 0; i < NCH(n); i += 2) {
- char *sch = STR(CHILD(n, i));
- strcpy(s, STR(CHILD(n, i)));
- s += strlen(sch);
- *s++ = '.';
- }
- --s;
- *s = '\0';
- PyString_InternInPlace(&str);
- PyArena_AddPyObject(c->c_arena, str);
- return alias(str, NULL, c->c_arena);
- }
- break;
- case STAR:
- str = PyString_InternFromString("*");
- PyArena_AddPyObject(c->c_arena, str);
- return alias(str, NULL, c->c_arena);
- default:
- PyErr_Format(PyExc_SystemError,
- "unexpected import name: %d", TYPE(n));
- return NULL;
+ case import_as_name:
+ str = NULL;
+ if (NCH(n) == 3) {
+ str = NEW_IDENTIFIER(CHILD(n, 2));
+ }
+ return alias(NEW_IDENTIFIER(CHILD(n, 0)), str, c->c_arena);
+ case dotted_as_name:
+ if (NCH(n) == 1) {
+ n = CHILD(n, 0);
+ goto loop;
+ }
+ else {
+ alias_ty a = alias_for_import_name(c, CHILD(n, 0));
+ if (!a)
+ return NULL;
+ assert(!a->asname);
+ a->asname = NEW_IDENTIFIER(CHILD(n, 2));
+ return a;
+ }
+ break;
+ case dotted_name:
+ if (NCH(n) == 1)
+ return alias(NEW_IDENTIFIER(CHILD(n, 0)), NULL, c->c_arena);
+ else {
+ /* Create a string of the form "a.b.c" */
+ int i;
+ size_t len;
+ char *s;
+
+ len = 0;
+ for (i = 0; i < NCH(n); i += 2)
+ /* length of string plus one for the dot */
+ len += strlen(STR(CHILD(n, i))) + 1;
+ len--; /* the last name doesn't have a dot */
+ str = PyString_FromStringAndSize(NULL, len);
+ if (!str)
+ return NULL;
+ s = PyString_AS_STRING(str);
+ if (!s)
+ return NULL;
+ for (i = 0; i < NCH(n); i += 2) {
+ char *sch = STR(CHILD(n, i));
+ strcpy(s, STR(CHILD(n, i)));
+ s += strlen(sch);
+ *s++ = '.';
+ }
+ --s;
+ *s = '\0';
+ PyString_InternInPlace(&str);
+ PyArena_AddPyObject(c->c_arena, str);
+ return alias(str, NULL, c->c_arena);
+ }
+ break;
+ case STAR:
+ str = PyString_InternFromString("*");
+ PyArena_AddPyObject(c->c_arena, str);
+ return alias(str, NULL, c->c_arena);
+ default:
+ PyErr_Format(PyExc_SystemError,
+ "unexpected import name: %d", TYPE(n));
+ return NULL;
}
PyErr_SetString(PyExc_SystemError, "unhandled import name condition");
import_stmt: import_name | import_from
import_name: 'import' dotted_as_names
import_from: 'from' ('.'* dotted_name | '.') 'import'
- ('*' | '(' import_as_names ')' | import_as_names)
+ ('*' | '(' import_as_names ')' | import_as_names)
*/
int lineno;
int col_offset;
col_offset = n->n_col_offset;
n = CHILD(n, 0);
if (TYPE(n) == import_name) {
- n = CHILD(n, 1);
- REQ(n, dotted_as_names);
- aliases = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena);
- if (!aliases)
- return NULL;
- for (i = 0; i < NCH(n); i += 2) {
- alias_ty import_alias = alias_for_import_name(c, CHILD(n, i));
- if (!import_alias)
- return NULL;
- asdl_seq_SET(aliases, i / 2, import_alias);
- }
- return Import(aliases, lineno, col_offset, c->c_arena);
+ n = CHILD(n, 1);
+ REQ(n, dotted_as_names);
+ aliases = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena);
+ if (!aliases)
+ return NULL;
+ for (i = 0; i < NCH(n); i += 2) {
+ alias_ty import_alias = alias_for_import_name(c, CHILD(n, i));
+ if (!import_alias)
+ return NULL;
+ asdl_seq_SET(aliases, i / 2, import_alias);
+ }
+ return Import(aliases, lineno, col_offset, c->c_arena);
}
else if (TYPE(n) == import_from) {
- int n_children;
- int idx, ndots = 0;
- alias_ty mod = NULL;
- identifier modname;
-
+ int n_children;
+ int idx, ndots = 0;
+ alias_ty mod = NULL;
+ identifier modname;
+
/* Count the number of dots (for relative imports) and check for the
- optional module name */
- for (idx = 1; idx < NCH(n); idx++) {
- if (TYPE(CHILD(n, idx)) == dotted_name) {
- mod = alias_for_import_name(c, CHILD(n, idx));
- idx++;
- break;
- } else if (TYPE(CHILD(n, idx)) != DOT) {
- break;
- }
- ndots++;
- }
- idx++; /* skip over the 'import' keyword */
- switch (TYPE(CHILD(n, idx))) {
- case STAR:
- /* from ... import * */
- n = CHILD(n, idx);
- n_children = 1;
- if (ndots) {
- ast_error(n, "'import *' not allowed with 'from .'");
- return NULL;
- }
- break;
- case LPAR:
- /* from ... import (x, y, z) */
- n = CHILD(n, idx + 1);
- n_children = NCH(n);
- break;
- case import_as_names:
- /* from ... import x, y, z */
- n = CHILD(n, idx);
- n_children = NCH(n);
- if (n_children % 2 == 0) {
- ast_error(n, "trailing comma not allowed without"
- " surrounding parentheses");
- return NULL;
- }
- break;
- default:
- ast_error(n, "Unexpected node-type in from-import");
- return NULL;
- }
-
- aliases = asdl_seq_new((n_children + 1) / 2, c->c_arena);
- if (!aliases)
- return NULL;
-
- /* handle "from ... import *" special b/c there's no children */
- if (TYPE(n) == STAR) {
- alias_ty import_alias = alias_for_import_name(c, n);
- if (!import_alias)
- return NULL;
- asdl_seq_SET(aliases, 0, import_alias);
- }
- else {
- for (i = 0; i < NCH(n); i += 2) {
- alias_ty import_alias = alias_for_import_name(c, CHILD(n, i));
- if (!import_alias)
- return NULL;
- asdl_seq_SET(aliases, i / 2, import_alias);
- }
- }
- if (mod != NULL)
- modname = mod->name;
- else
- modname = new_identifier("", c->c_arena);
- return ImportFrom(modname, aliases, ndots, lineno, col_offset,
- c->c_arena);
+ optional module name */
+ for (idx = 1; idx < NCH(n); idx++) {
+ if (TYPE(CHILD(n, idx)) == dotted_name) {
+ mod = alias_for_import_name(c, CHILD(n, idx));
+ idx++;
+ break;
+ } else if (TYPE(CHILD(n, idx)) != DOT) {
+ break;
+ }
+ ndots++;
+ }
+ idx++; /* skip over the 'import' keyword */
+ switch (TYPE(CHILD(n, idx))) {
+ case STAR:
+ /* from ... import * */
+ n = CHILD(n, idx);
+ n_children = 1;
+ if (ndots) {
+ ast_error(n, "'import *' not allowed with 'from .'");
+ return NULL;
+ }
+ break;
+ case LPAR:
+ /* from ... import (x, y, z) */
+ n = CHILD(n, idx + 1);
+ n_children = NCH(n);
+ break;
+ case import_as_names:
+ /* from ... import x, y, z */
+ n = CHILD(n, idx);
+ n_children = NCH(n);
+ if (n_children % 2 == 0) {
+ ast_error(n, "trailing comma not allowed without"
+ " surrounding parentheses");
+ return NULL;
+ }
+ break;
+ default:
+ ast_error(n, "Unexpected node-type in from-import");
+ return NULL;
+ }
+
+ aliases = asdl_seq_new((n_children + 1) / 2, c->c_arena);
+ if (!aliases)
+ return NULL;
+
+ /* handle "from ... import *" special b/c there's no children */
+ if (TYPE(n) == STAR) {
+ alias_ty import_alias = alias_for_import_name(c, n);
+ if (!import_alias)
+ return NULL;
+ asdl_seq_SET(aliases, 0, import_alias);
+ }
+ else {
+ for (i = 0; i < NCH(n); i += 2) {
+ alias_ty import_alias = alias_for_import_name(c, CHILD(n, i));
+ if (!import_alias)
+ return NULL;
+ asdl_seq_SET(aliases, i / 2, import_alias);
+ }
+ }
+ if (mod != NULL)
+ modname = mod->name;
+ else
+ modname = new_identifier("", c->c_arena);
+ return ImportFrom(modname, aliases, ndots, lineno, col_offset,
+ c->c_arena);
}
PyErr_Format(PyExc_SystemError,
- "unknown import statement: starts with command '%s'",
- STR(CHILD(n, 0)));
+ "unknown import statement: starts with command '%s'",
+ STR(CHILD(n, 0)));
return NULL;
}
REQ(n, global_stmt);
s = asdl_seq_new(NCH(n) / 2, c->c_arena);
if (!s)
- return NULL;
+ return NULL;
for (i = 1; i < NCH(n); i += 2) {
- name = NEW_IDENTIFIER(CHILD(n, i));
- if (!name)
- return NULL;
- asdl_seq_SET(s, i / 2, name);
+ name = NEW_IDENTIFIER(CHILD(n, i));
+ if (!name)
+ return NULL;
+ asdl_seq_SET(s, i / 2, name);
}
return Global(s, LINENO(n), n->n_col_offset, c->c_arena);
}
expr_ty expr1, globals = NULL, locals = NULL;
int n_children = NCH(n);
if (n_children != 2 && n_children != 4 && n_children != 6) {
- PyErr_Format(PyExc_SystemError,
- "poorly formed 'exec' statement: %d parts to statement",
- n_children);
- return NULL;
+ PyErr_Format(PyExc_SystemError,
+ "poorly formed 'exec' statement: %d parts to statement",
+ n_children);
+ return NULL;
}
/* exec_stmt: 'exec' expr ['in' test [',' test]] */
REQ(n, exec_stmt);
expr1 = ast_for_expr(c, CHILD(n, 1));
if (!expr1)
- return NULL;
+ return NULL;
if (n_children >= 4) {
- globals = ast_for_expr(c, CHILD(n, 3));
- if (!globals)
- return NULL;
+ globals = ast_for_expr(c, CHILD(n, 3));
+ if (!globals)
+ return NULL;
}
if (n_children == 6) {
- locals = ast_for_expr(c, CHILD(n, 5));
- if (!locals)
- return NULL;
+ locals = ast_for_expr(c, CHILD(n, 5));
+ if (!locals)
+ return NULL;
}
return Exec(expr1, globals, locals, LINENO(n), n->n_col_offset, c->c_arena);
/* assert_stmt: 'assert' test [',' test] */
REQ(n, assert_stmt);
if (NCH(n) == 2) {
- expr_ty expression = ast_for_expr(c, CHILD(n, 1));
- if (!expression)
- return NULL;
- return Assert(expression, NULL, LINENO(n), n->n_col_offset, c->c_arena);
+ expr_ty expression = ast_for_expr(c, CHILD(n, 1));
+ if (!expression)
+ return NULL;
+ return Assert(expression, NULL, LINENO(n), n->n_col_offset, c->c_arena);
}
else if (NCH(n) == 4) {
- expr_ty expr1, expr2;
+ expr_ty expr1, expr2;
- expr1 = ast_for_expr(c, CHILD(n, 1));
- if (!expr1)
- return NULL;
- expr2 = ast_for_expr(c, CHILD(n, 3));
- if (!expr2)
- return NULL;
-
- return Assert(expr1, expr2, LINENO(n), n->n_col_offset, c->c_arena);
+ expr1 = ast_for_expr(c, CHILD(n, 1));
+ if (!expr1)
+ return NULL;
+ expr2 = ast_for_expr(c, CHILD(n, 3));
+ if (!expr2)
+ return NULL;
+
+ return Assert(expr1, expr2, LINENO(n), n->n_col_offset, c->c_arena);
}
PyErr_Format(PyExc_SystemError,
- "improper number of parts to 'assert' statement: %d",
- NCH(n));
+ "improper number of parts to 'assert' statement: %d",
+ NCH(n));
return NULL;
}
total = num_stmts(n);
seq = asdl_seq_new(total, c->c_arena);
if (!seq)
- return NULL;
+ return NULL;
if (TYPE(CHILD(n, 0)) == simple_stmt) {
- n = CHILD(n, 0);
- /* simple_stmt always ends with a NEWLINE,
- and may have a trailing SEMI
- */
- end = NCH(n) - 1;
- if (TYPE(CHILD(n, end - 1)) == SEMI)
- end--;
- /* loop by 2 to skip semi-colons */
- for (i = 0; i < end; i += 2) {
- ch = CHILD(n, i);
- s = ast_for_stmt(c, ch);
- if (!s)
- return NULL;
- asdl_seq_SET(seq, pos++, s);
- }
+ n = CHILD(n, 0);
+ /* simple_stmt always ends with a NEWLINE,
+ and may have a trailing SEMI
+ */
+ end = NCH(n) - 1;
+ if (TYPE(CHILD(n, end - 1)) == SEMI)
+ end--;
+ /* loop by 2 to skip semi-colons */
+ for (i = 0; i < end; i += 2) {
+ ch = CHILD(n, i);
+ s = ast_for_stmt(c, ch);
+ if (!s)
+ return NULL;
+ asdl_seq_SET(seq, pos++, s);
+ }
}
else {
- for (i = 2; i < (NCH(n) - 1); i++) {
- ch = CHILD(n, i);
- REQ(ch, stmt);
- num = num_stmts(ch);
- if (num == 1) {
- /* small_stmt or compound_stmt with only one child */
- s = ast_for_stmt(c, ch);
- if (!s)
- return NULL;
- asdl_seq_SET(seq, pos++, s);
- }
- else {
- int j;
- ch = CHILD(ch, 0);
- REQ(ch, simple_stmt);
- for (j = 0; j < NCH(ch); j += 2) {
- /* statement terminates with a semi-colon ';' */
- if (NCH(CHILD(ch, j)) == 0) {
- assert((j + 1) == NCH(ch));
- break;
- }
- s = ast_for_stmt(c, CHILD(ch, j));
- if (!s)
- return NULL;
- asdl_seq_SET(seq, pos++, s);
- }
- }
- }
+ for (i = 2; i < (NCH(n) - 1); i++) {
+ ch = CHILD(n, i);
+ REQ(ch, stmt);
+ num = num_stmts(ch);
+ if (num == 1) {
+ /* small_stmt or compound_stmt with only one child */
+ s = ast_for_stmt(c, ch);
+ if (!s)
+ return NULL;
+ asdl_seq_SET(seq, pos++, s);
+ }
+ else {
+ int j;
+ ch = CHILD(ch, 0);
+ REQ(ch, simple_stmt);
+ for (j = 0; j < NCH(ch); j += 2) {
+ /* statement terminates with a semi-colon ';' */
+ if (NCH(CHILD(ch, j)) == 0) {
+ assert((j + 1) == NCH(ch));
+ break;
+ }
+ s = ast_for_stmt(c, CHILD(ch, j));
+ if (!s)
+ return NULL;
+ asdl_seq_SET(seq, pos++, s);
+ }
+ }
+ }
}
assert(pos == seq->size);
return seq;
REQ(n, if_stmt);
if (NCH(n) == 4) {
- expr_ty expression;
- asdl_seq *suite_seq;
+ expr_ty expression;
+ asdl_seq *suite_seq;
- expression = ast_for_expr(c, CHILD(n, 1));
- if (!expression)
- return NULL;
- suite_seq = ast_for_suite(c, CHILD(n, 3));
- if (!suite_seq)
- return NULL;
-
- return If(expression, suite_seq, NULL, LINENO(n), n->n_col_offset, c->c_arena);
+ expression = ast_for_expr(c, CHILD(n, 1));
+ if (!expression)
+ return NULL;
+ suite_seq = ast_for_suite(c, CHILD(n, 3));
+ if (!suite_seq)
+ return NULL;
+
+ return If(expression, suite_seq, NULL, LINENO(n), n->n_col_offset, c->c_arena);
}
s = STR(CHILD(n, 4));
'i' for el_i_f
*/
if (s[2] == 's') {
- expr_ty expression;
- asdl_seq *seq1, *seq2;
+ expr_ty expression;
+ asdl_seq *seq1, *seq2;
- expression = ast_for_expr(c, CHILD(n, 1));
- if (!expression)
- return NULL;
- seq1 = ast_for_suite(c, CHILD(n, 3));
- if (!seq1)
- return NULL;
- seq2 = ast_for_suite(c, CHILD(n, 6));
- if (!seq2)
- return NULL;
+ expression = ast_for_expr(c, CHILD(n, 1));
+ if (!expression)
+ return NULL;
+ seq1 = ast_for_suite(c, CHILD(n, 3));
+ if (!seq1)
+ return NULL;
+ seq2 = ast_for_suite(c, CHILD(n, 6));
+ if (!seq2)
+ return NULL;
- return If(expression, seq1, seq2, LINENO(n), n->n_col_offset, c->c_arena);
+ return If(expression, seq1, seq2, LINENO(n), n->n_col_offset, c->c_arena);
}
else if (s[2] == 'i') {
- int i, n_elif, has_else = 0;
- asdl_seq *orelse = NULL;
- n_elif = NCH(n) - 4;
- /* must reference the child n_elif+1 since 'else' token is third,
- not fourth, child from the end. */
- if (TYPE(CHILD(n, (n_elif + 1))) == NAME
- && STR(CHILD(n, (n_elif + 1)))[2] == 's') {
- has_else = 1;
- n_elif -= 3;
- }
- n_elif /= 4;
-
- if (has_else) {
- expr_ty expression;
- asdl_seq *seq1, *seq2;
-
- orelse = asdl_seq_new(1, c->c_arena);
- if (!orelse)
- return NULL;
- expression = ast_for_expr(c, CHILD(n, NCH(n) - 6));
- if (!expression)
- return NULL;
- seq1 = ast_for_suite(c, CHILD(n, NCH(n) - 4));
- if (!seq1)
- return NULL;
- seq2 = ast_for_suite(c, CHILD(n, NCH(n) - 1));
- if (!seq2)
- return NULL;
-
- asdl_seq_SET(orelse, 0, If(expression, seq1, seq2,
- LINENO(CHILD(n, NCH(n) - 6)), CHILD(n, NCH(n) - 6)->n_col_offset,
- c->c_arena));
- /* the just-created orelse handled the last elif */
- n_elif--;
- }
-
- for (i = 0; i < n_elif; i++) {
- int off = 5 + (n_elif - i - 1) * 4;
- expr_ty expression;
- asdl_seq *suite_seq;
- asdl_seq *newobj = asdl_seq_new(1, c->c_arena);
- if (!newobj)
- return NULL;
- expression = ast_for_expr(c, CHILD(n, off));
- if (!expression)
- return NULL;
- suite_seq = ast_for_suite(c, CHILD(n, off + 2));
- if (!suite_seq)
- return NULL;
-
- asdl_seq_SET(newobj, 0,
- If(expression, suite_seq, orelse,
- LINENO(CHILD(n, off)), CHILD(n, off)->n_col_offset, c->c_arena));
- orelse = newobj;
- }
- return If(ast_for_expr(c, CHILD(n, 1)),
- ast_for_suite(c, CHILD(n, 3)),
- orelse, LINENO(n), n->n_col_offset, c->c_arena);
+ int i, n_elif, has_else = 0;
+ asdl_seq *orelse = NULL;
+ n_elif = NCH(n) - 4;
+ /* must reference the child n_elif+1 since 'else' token is third,
+ not fourth, child from the end. */
+ if (TYPE(CHILD(n, (n_elif + 1))) == NAME
+ && STR(CHILD(n, (n_elif + 1)))[2] == 's') {
+ has_else = 1;
+ n_elif -= 3;
+ }
+ n_elif /= 4;
+
+ if (has_else) {
+ expr_ty expression;
+ asdl_seq *seq1, *seq2;
+
+ orelse = asdl_seq_new(1, c->c_arena);
+ if (!orelse)
+ return NULL;
+ expression = ast_for_expr(c, CHILD(n, NCH(n) - 6));
+ if (!expression)
+ return NULL;
+ seq1 = ast_for_suite(c, CHILD(n, NCH(n) - 4));
+ if (!seq1)
+ return NULL;
+ seq2 = ast_for_suite(c, CHILD(n, NCH(n) - 1));
+ if (!seq2)
+ return NULL;
+
+ asdl_seq_SET(orelse, 0, If(expression, seq1, seq2,
+ LINENO(CHILD(n, NCH(n) - 6)), CHILD(n, NCH(n) - 6)->n_col_offset,
+ c->c_arena));
+ /* the just-created orelse handled the last elif */
+ n_elif--;
+ }
+
+ for (i = 0; i < n_elif; i++) {
+ int off = 5 + (n_elif - i - 1) * 4;
+ expr_ty expression;
+ asdl_seq *suite_seq;
+ asdl_seq *newobj = asdl_seq_new(1, c->c_arena);
+ if (!newobj)
+ return NULL;
+ expression = ast_for_expr(c, CHILD(n, off));
+ if (!expression)
+ return NULL;
+ suite_seq = ast_for_suite(c, CHILD(n, off + 2));
+ if (!suite_seq)
+ return NULL;
+
+ asdl_seq_SET(newobj, 0,
+ If(expression, suite_seq, orelse,
+ LINENO(CHILD(n, off)), CHILD(n, off)->n_col_offset, c->c_arena));
+ orelse = newobj;
+ }
+ return If(ast_for_expr(c, CHILD(n, 1)),
+ ast_for_suite(c, CHILD(n, 3)),
+ orelse, LINENO(n), n->n_col_offset, c->c_arena);
}
PyErr_Format(PyExc_SystemError,
- "unexpected token in 'if' statement: %s", s);
+ "unexpected token in 'if' statement: %s", s);
return NULL;
}
REQ(n, while_stmt);
if (NCH(n) == 4) {
- expr_ty expression;
- asdl_seq *suite_seq;
+ expr_ty expression;
+ asdl_seq *suite_seq;
- expression = ast_for_expr(c, CHILD(n, 1));
- if (!expression)
- return NULL;
- suite_seq = ast_for_suite(c, CHILD(n, 3));
- if (!suite_seq)
- return NULL;
- return While(expression, suite_seq, NULL, LINENO(n), n->n_col_offset, c->c_arena);
+ expression = ast_for_expr(c, CHILD(n, 1));
+ if (!expression)
+ return NULL;
+ suite_seq = ast_for_suite(c, CHILD(n, 3));
+ if (!suite_seq)
+ return NULL;
+ return While(expression, suite_seq, NULL, LINENO(n), n->n_col_offset, c->c_arena);
}
else if (NCH(n) == 7) {
- expr_ty expression;
- asdl_seq *seq1, *seq2;
+ expr_ty expression;
+ asdl_seq *seq1, *seq2;
- expression = ast_for_expr(c, CHILD(n, 1));
- if (!expression)
- return NULL;
- seq1 = ast_for_suite(c, CHILD(n, 3));
- if (!seq1)
- return NULL;
- seq2 = ast_for_suite(c, CHILD(n, 6));
- if (!seq2)
- return NULL;
+ expression = ast_for_expr(c, CHILD(n, 1));
+ if (!expression)
+ return NULL;
+ seq1 = ast_for_suite(c, CHILD(n, 3));
+ if (!seq1)
+ return NULL;
+ seq2 = ast_for_suite(c, CHILD(n, 6));
+ if (!seq2)
+ return NULL;
- return While(expression, seq1, seq2, LINENO(n), n->n_col_offset, c->c_arena);
+ return While(expression, seq1, seq2, LINENO(n), n->n_col_offset, c->c_arena);
}
PyErr_Format(PyExc_SystemError,
- "wrong number of tokens for 'while' statement: %d",
- NCH(n));
+ "wrong number of tokens for 'while' statement: %d",
+ NCH(n));
return NULL;
}
REQ(n, for_stmt);
if (NCH(n) == 9) {
- seq = ast_for_suite(c, CHILD(n, 8));
- if (!seq)
- return NULL;
+ seq = ast_for_suite(c, CHILD(n, 8));
+ if (!seq)
+ return NULL;
}
node_target = CHILD(n, 1);
_target = ast_for_exprlist(c, node_target, Store);
if (!_target)
- return NULL;
+ return NULL;
/* Check the # of children rather than the length of _target, since
for x, in ... has 1 element in _target, but still requires a Tuple. */
if (NCH(node_target) == 1)
- target = (expr_ty)asdl_seq_GET(_target, 0);
+ target = (expr_ty)asdl_seq_GET(_target, 0);
else
- target = Tuple(_target, Store, LINENO(n), n->n_col_offset, c->c_arena);
+ target = Tuple(_target, Store, LINENO(n), n->n_col_offset, c->c_arena);
expression = ast_for_testlist(c, CHILD(n, 3));
if (!expression)
- return NULL;
+ return NULL;
suite_seq = ast_for_suite(c, CHILD(n, 5));
if (!suite_seq)
- return NULL;
+ return NULL;
return For(target, expression, suite_seq, seq, LINENO(n), n->n_col_offset,
- c->c_arena);
+ c->c_arena);
}
static excepthandler_ty
REQ(body, suite);
if (NCH(exc) == 1) {
- asdl_seq *suite_seq = ast_for_suite(c, body);
- if (!suite_seq)
- return NULL;
+ asdl_seq *suite_seq = ast_for_suite(c, body);
+ if (!suite_seq)
+ return NULL;
- return excepthandler(NULL, NULL, suite_seq, LINENO(exc),
- exc->n_col_offset, c->c_arena);
+ return excepthandler(NULL, NULL, suite_seq, LINENO(exc),
+ exc->n_col_offset, c->c_arena);
}
else if (NCH(exc) == 2) {
- expr_ty expression;
- asdl_seq *suite_seq;
+ expr_ty expression;
+ asdl_seq *suite_seq;
- expression = ast_for_expr(c, CHILD(exc, 1));
- if (!expression)
- return NULL;
- suite_seq = ast_for_suite(c, body);
- if (!suite_seq)
- return NULL;
+ expression = ast_for_expr(c, CHILD(exc, 1));
+ if (!expression)
+ return NULL;
+ suite_seq = ast_for_suite(c, body);
+ if (!suite_seq)
+ return NULL;
- return excepthandler(expression, NULL, suite_seq, LINENO(exc),
- exc->n_col_offset, c->c_arena);
+ return excepthandler(expression, NULL, suite_seq, LINENO(exc),
+ exc->n_col_offset, c->c_arena);
}
else if (NCH(exc) == 4) {
- asdl_seq *suite_seq;
- expr_ty expression;
- expr_ty e = ast_for_expr(c, CHILD(exc, 3));
- if (!e)
- return NULL;
- if (!set_context(e, Store, CHILD(exc, 3)))
- return NULL;
- expression = ast_for_expr(c, CHILD(exc, 1));
- if (!expression)
- return NULL;
- suite_seq = ast_for_suite(c, body);
- if (!suite_seq)
- return NULL;
-
- return excepthandler(expression, e, suite_seq, LINENO(exc),
- exc->n_col_offset, c->c_arena);
+ asdl_seq *suite_seq;
+ expr_ty expression;
+ expr_ty e = ast_for_expr(c, CHILD(exc, 3));
+ if (!e)
+ return NULL;
+ if (!set_context(e, Store, CHILD(exc, 3)))
+ return NULL;
+ expression = ast_for_expr(c, CHILD(exc, 1));
+ if (!expression)
+ return NULL;
+ suite_seq = ast_for_suite(c, body);
+ if (!suite_seq)
+ return NULL;
+
+ return excepthandler(expression, e, suite_seq, LINENO(exc),
+ exc->n_col_offset, c->c_arena);
}
PyErr_Format(PyExc_SystemError,
- "wrong number of children for 'except' clause: %d",
- NCH(exc));
+ "wrong number of children for 'except' clause: %d",
+ NCH(exc));
return NULL;
}
body = ast_for_suite(c, CHILD(n, 2));
if (body == NULL)
- return NULL;
+ return NULL;
if (TYPE(CHILD(n, nch - 3)) == NAME) {
- if (strcmp(STR(CHILD(n, nch - 3)), "finally") == 0) {
- if (nch >= 9 && TYPE(CHILD(n, nch - 6)) == NAME) {
- /* we can assume it's an "else",
- because nch >= 9 for try-else-finally and
- it would otherwise have a type of except_clause */
- orelse = ast_for_suite(c, CHILD(n, nch - 4));
- if (orelse == NULL)
- return NULL;
- n_except--;
- }
-
- finally = ast_for_suite(c, CHILD(n, nch - 1));
- if (finally == NULL)
- return NULL;
- n_except--;
- }
- else {
- /* we can assume it's an "else",
- otherwise it would have a type of except_clause */
- orelse = ast_for_suite(c, CHILD(n, nch - 1));
- if (orelse == NULL)
- return NULL;
- n_except--;
- }
+ if (strcmp(STR(CHILD(n, nch - 3)), "finally") == 0) {
+ if (nch >= 9 && TYPE(CHILD(n, nch - 6)) == NAME) {
+ /* we can assume it's an "else",
+ because nch >= 9 for try-else-finally and
+ it would otherwise have a type of except_clause */
+ orelse = ast_for_suite(c, CHILD(n, nch - 4));
+ if (orelse == NULL)
+ return NULL;
+ n_except--;
+ }
+
+ finally = ast_for_suite(c, CHILD(n, nch - 1));
+ if (finally == NULL)
+ return NULL;
+ n_except--;
+ }
+ else {
+ /* we can assume it's an "else",
+ otherwise it would have a type of except_clause */
+ orelse = ast_for_suite(c, CHILD(n, nch - 1));
+ if (orelse == NULL)
+ return NULL;
+ n_except--;
+ }
}
else if (TYPE(CHILD(n, nch - 3)) != except_clause) {
- ast_error(n, "malformed 'try' statement");
- return NULL;
+ ast_error(n, "malformed 'try' statement");
+ return NULL;
}
if (n_except > 0) {
- int i;
- stmt_ty except_st;
- /* process except statements to create a try ... except */
- asdl_seq *handlers = asdl_seq_new(n_except, c->c_arena);
- if (handlers == NULL)
- return NULL;
-
- for (i = 0; i < n_except; i++) {
- excepthandler_ty e = ast_for_except_clause(c, CHILD(n, 3 + i * 3),
- CHILD(n, 5 + i * 3));
- if (!e)
- return NULL;
- asdl_seq_SET(handlers, i, e);
- }
-
- except_st = TryExcept(body, handlers, orelse, LINENO(n),
- n->n_col_offset, c->c_arena);
- if (!finally)
- return except_st;
-
- /* if a 'finally' is present too, we nest the TryExcept within a
- TryFinally to emulate try ... except ... finally */
- body = asdl_seq_new(1, c->c_arena);
- if (body == NULL)
- return NULL;
- asdl_seq_SET(body, 0, except_st);
+ int i;
+ stmt_ty except_st;
+ /* process except statements to create a try ... except */
+ asdl_seq *handlers = asdl_seq_new(n_except, c->c_arena);
+ if (handlers == NULL)
+ return NULL;
+
+ for (i = 0; i < n_except; i++) {
+ excepthandler_ty e = ast_for_except_clause(c, CHILD(n, 3 + i * 3),
+ CHILD(n, 5 + i * 3));
+ if (!e)
+ return NULL;
+ asdl_seq_SET(handlers, i, e);
+ }
+
+ except_st = TryExcept(body, handlers, orelse, LINENO(n),
+ n->n_col_offset, c->c_arena);
+ if (!finally)
+ return except_st;
+
+ /* if a 'finally' is present too, we nest the TryExcept within a
+ TryFinally to emulate try ... except ... finally */
+ body = asdl_seq_new(1, c->c_arena);
+ if (body == NULL)
+ return NULL;
+ asdl_seq_SET(body, 0, except_st);
}
/* must be a try ... finally (except clauses are in body, if any exist) */
assert(TYPE(n) == with_stmt);
context_expr = ast_for_expr(c, CHILD(n, 1));
if (TYPE(CHILD(n, 2)) == with_var) {
- optional_vars = ast_for_with_var(c, CHILD(n, 2));
+ optional_vars = ast_for_with_var(c, CHILD(n, 2));
- if (!optional_vars) {
- return NULL;
- }
- if (!set_context(optional_vars, Store, n)) {
- return NULL;
- }
- suite_index = 4;
+ if (!optional_vars) {
+ return NULL;
+ }
+ if (!set_context(optional_vars, Store, n)) {
+ return NULL;
+ }
+ suite_index = 4;
}
suite_seq = ast_for_suite(c, CHILD(n, suite_index));
if (!suite_seq) {
- return NULL;
+ return NULL;
}
return With(context_expr, optional_vars, suite_seq, LINENO(n),
- n->n_col_offset, c->c_arena);
+ n->n_col_offset, c->c_arena);
}
static stmt_ty
REQ(n, classdef);
if (!strcmp(STR(CHILD(n, 1)), "None")) {
- ast_error(n, "assignment to None");
- return NULL;
+ ast_error(n, "assignment to None");
+ return NULL;
}
if (NCH(n) == 4) {
- s = ast_for_suite(c, CHILD(n, 3));
- if (!s)
- return NULL;
- return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, LINENO(n),
- n->n_col_offset, c->c_arena);
+ s = ast_for_suite(c, CHILD(n, 3));
+ if (!s)
+ return NULL;
+ return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, LINENO(n),
+ n->n_col_offset, c->c_arena);
}
/* check for empty base list */
if (TYPE(CHILD(n,3)) == RPAR) {
- s = ast_for_suite(c, CHILD(n,5));
- if (!s)
- return NULL;
- return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, LINENO(n),
- n->n_col_offset, c->c_arena);
+ s = ast_for_suite(c, CHILD(n,5));
+ if (!s)
+ return NULL;
+ return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, s, LINENO(n),
+ n->n_col_offset, c->c_arena);
}
/* else handle the base class list */
bases = ast_for_class_bases(c, CHILD(n, 3));
if (!bases)
- return NULL;
+ return NULL;
s = ast_for_suite(c, CHILD(n, 6));
if (!s)
- return NULL;
+ return NULL;
return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), bases, s, LINENO(n),
- n->n_col_offset, c->c_arena);
+ n->n_col_offset, c->c_arena);
}
static stmt_ty
ast_for_stmt(struct compiling *c, const node *n)
{
if (TYPE(n) == stmt) {
- assert(NCH(n) == 1);
- n = CHILD(n, 0);
+ assert(NCH(n) == 1);
+ n = CHILD(n, 0);
}
if (TYPE(n) == simple_stmt) {
- assert(num_stmts(n) == 1);
- n = CHILD(n, 0);
+ assert(num_stmts(n) == 1);
+ n = CHILD(n, 0);
}
if (TYPE(n) == small_stmt) {
- REQ(n, small_stmt);
- n = CHILD(n, 0);
- /* small_stmt: expr_stmt | print_stmt | del_stmt | pass_stmt
- | flow_stmt | import_stmt | global_stmt | exec_stmt
- | assert_stmt
- */
- switch (TYPE(n)) {
- case expr_stmt:
- return ast_for_expr_stmt(c, n);
- case print_stmt:
- return ast_for_print_stmt(c, n);
- case del_stmt:
- return ast_for_del_stmt(c, n);
- case pass_stmt:
- return Pass(LINENO(n), n->n_col_offset, c->c_arena);
- case flow_stmt:
- return ast_for_flow_stmt(c, n);
- case import_stmt:
- return ast_for_import_stmt(c, n);
- case global_stmt:
- return ast_for_global_stmt(c, n);
- case exec_stmt:
- return ast_for_exec_stmt(c, n);
- case assert_stmt:
- return ast_for_assert_stmt(c, n);
- default:
- PyErr_Format(PyExc_SystemError,
- "unhandled small_stmt: TYPE=%d NCH=%d\n",
- TYPE(n), NCH(n));
- return NULL;
- }
+ REQ(n, small_stmt);
+ n = CHILD(n, 0);
+ /* small_stmt: expr_stmt | print_stmt | del_stmt | pass_stmt
+ | flow_stmt | import_stmt | global_stmt | exec_stmt
+ | assert_stmt
+ */
+ switch (TYPE(n)) {
+ case expr_stmt:
+ return ast_for_expr_stmt(c, n);
+ case print_stmt:
+ return ast_for_print_stmt(c, n);
+ case del_stmt:
+ return ast_for_del_stmt(c, n);
+ case pass_stmt:
+ return Pass(LINENO(n), n->n_col_offset, c->c_arena);
+ case flow_stmt:
+ return ast_for_flow_stmt(c, n);
+ case import_stmt:
+ return ast_for_import_stmt(c, n);
+ case global_stmt:
+ return ast_for_global_stmt(c, n);
+ case exec_stmt:
+ return ast_for_exec_stmt(c, n);
+ case assert_stmt:
+ return ast_for_assert_stmt(c, n);
+ default:
+ PyErr_Format(PyExc_SystemError,
+ "unhandled small_stmt: TYPE=%d NCH=%d\n",
+ TYPE(n), NCH(n));
+ return NULL;
+ }
}
else {
- /* compound_stmt: if_stmt | while_stmt | for_stmt | try_stmt
- | funcdef | classdef
- */
- node *ch = CHILD(n, 0);
- REQ(n, compound_stmt);
- switch (TYPE(ch)) {
- case if_stmt:
- return ast_for_if_stmt(c, ch);
- case while_stmt:
- return ast_for_while_stmt(c, ch);
- case for_stmt:
- return ast_for_for_stmt(c, ch);
- case try_stmt:
- return ast_for_try_stmt(c, ch);
- case with_stmt:
- return ast_for_with_stmt(c, ch);
- case funcdef:
- return ast_for_funcdef(c, ch);
- case classdef:
- return ast_for_classdef(c, ch);
- default:
- PyErr_Format(PyExc_SystemError,
- "unhandled small_stmt: TYPE=%d NCH=%d\n",
- TYPE(n), NCH(n));
- return NULL;
- }
+ /* compound_stmt: if_stmt | while_stmt | for_stmt | try_stmt
+ | funcdef | classdef
+ */
+ node *ch = CHILD(n, 0);
+ REQ(n, compound_stmt);
+ switch (TYPE(ch)) {
+ case if_stmt:
+ return ast_for_if_stmt(c, ch);
+ case while_stmt:
+ return ast_for_while_stmt(c, ch);
+ case for_stmt:
+ return ast_for_for_stmt(c, ch);
+ case try_stmt:
+ return ast_for_try_stmt(c, ch);
+ case with_stmt:
+ return ast_for_with_stmt(c, ch);
+ case funcdef:
+ return ast_for_funcdef(c, ch);
+ case classdef:
+ return ast_for_classdef(c, ch);
+ default:
+ PyErr_Format(PyExc_SystemError,
+ "unhandled small_stmt: TYPE=%d NCH=%d\n",
+ TYPE(n), NCH(n));
+ return NULL;
+ }
}
}
static PyObject *
parsenumber(const char *s)
{
- const char *end;
- long x;
- double dx;
+ const char *end;
+ long x;
+ double dx;
#ifndef WITHOUT_COMPLEX
- Py_complex c;
- int imflag;
+ Py_complex c;
+ int imflag;
#endif
- errno = 0;
- end = s + strlen(s) - 1;
+ errno = 0;
+ end = s + strlen(s) - 1;
#ifndef WITHOUT_COMPLEX
- imflag = *end == 'j' || *end == 'J';
+ imflag = *end == 'j' || *end == 'J';
#endif
- if (*end == 'l' || *end == 'L')
- return PyLong_FromString((char *)s, (char **)0, 0);
- if (s[0] == '0') {
- x = (long) PyOS_strtoul((char *)s, (char **)&end, 0);
- if (x < 0 && errno == 0) {
- return PyLong_FromString((char *)s,
- (char **)0,
- 0);
- }
- }
- else
- x = PyOS_strtol((char *)s, (char **)&end, 0);
- if (*end == '\0') {
- if (errno != 0)
- return PyLong_FromString((char *)s, (char **)0, 0);
- return PyInt_FromLong(x);
- }
- /* XXX Huge floats may silently fail */
+ if (*end == 'l' || *end == 'L')
+ return PyLong_FromString((char *)s, (char **)0, 0);
+ if (s[0] == '0') {
+ x = (long) PyOS_strtoul((char *)s, (char **)&end, 0);
+ if (x < 0 && errno == 0) {
+ return PyLong_FromString((char *)s,
+ (char **)0,
+ 0);
+ }
+ }
+ else
+ x = PyOS_strtol((char *)s, (char **)&end, 0);
+ if (*end == '\0') {
+ if (errno != 0)
+ return PyLong_FromString((char *)s, (char **)0, 0);
+ return PyInt_FromLong(x);
+ }
+ /* XXX Huge floats may silently fail */
#ifndef WITHOUT_COMPLEX
- if (imflag) {
- c.real = 0.;
- PyFPE_START_PROTECT("atof", return 0)
- c.imag = PyOS_ascii_atof(s);
- PyFPE_END_PROTECT(c)
- return PyComplex_FromCComplex(c);
- }
- else
+ if (imflag) {
+ c.real = 0.;
+ PyFPE_START_PROTECT("atof", return 0)
+ c.imag = PyOS_ascii_atof(s);
+ PyFPE_END_PROTECT(c)
+ return PyComplex_FromCComplex(c);
+ }
+ else
#endif
- {
- PyFPE_START_PROTECT("atof", return 0)
- dx = PyOS_ascii_atof(s);
- PyFPE_END_PROTECT(dx)
- return PyFloat_FromDouble(dx);
- }
+ {
+ PyFPE_START_PROTECT("atof", return 0)
+ dx = PyOS_ascii_atof(s);
+ PyFPE_END_PROTECT(dx)
+ return PyFloat_FromDouble(dx);
+ }
}
static PyObject *
decode_utf8(const char **sPtr, const char *end, char* encoding)
{
#ifndef Py_USING_UNICODE
- Py_FatalError("decode_utf8 should not be called in this build.");
- return NULL;
+ Py_FatalError("decode_utf8 should not be called in this build.");
+ return NULL;
#else
- PyObject *u, *v;
- char *s, *t;
- t = s = (char *)*sPtr;
- /* while (s < end && *s != '\\') s++; */ /* inefficient for u".." */
- while (s < end && (*s & 0x80)) s++;
- *sPtr = s;
- u = PyUnicode_DecodeUTF8(t, s - t, NULL);
- if (u == NULL)
- return NULL;
- v = PyUnicode_AsEncodedString(u, encoding, NULL);
- Py_DECREF(u);
- return v;
+ PyObject *u, *v;
+ char *s, *t;
+ t = s = (char *)*sPtr;
+ /* while (s < end && *s != '\\') s++; */ /* inefficient for u".." */
+ while (s < end && (*s & 0x80)) s++;
+ *sPtr = s;
+ u = PyUnicode_DecodeUTF8(t, s - t, NULL);
+ if (u == NULL)
+ return NULL;
+ v = PyUnicode_AsEncodedString(u, encoding, NULL);
+ Py_DECREF(u);
+ return v;
#endif
}
static PyObject *
decode_unicode(const char *s, size_t len, int rawmode, const char *encoding)
{
- PyObject *v, *u;
- char *buf;
- char *p;
- const char *end;
- if (encoding == NULL) {
- buf = (char *)s;
- u = NULL;
- } else if (strcmp(encoding, "iso-8859-1") == 0) {
- buf = (char *)s;
- u = NULL;
- } else {
- /* "\XX" may become "\u005c\uHHLL" (12 bytes) */
- u = PyString_FromStringAndSize((char *)NULL, len * 4);
- if (u == NULL)
- return NULL;
- p = buf = PyString_AsString(u);
- end = s + len;
- while (s < end) {
- if (*s == '\\') {
- *p++ = *s++;
- if (*s & 0x80) {
- strcpy(p, "u005c");
- p += 5;
- }
- }
- if (*s & 0x80) { /* XXX inefficient */
- PyObject *w;
- char *r;
- Py_ssize_t rn, i;
- w = decode_utf8(&s, end, "utf-16-be");
- if (w == NULL) {
- Py_DECREF(u);
- return NULL;
- }
- r = PyString_AsString(w);
- rn = PyString_Size(w);
- assert(rn % 2 == 0);
- for (i = 0; i < rn; i += 2) {
- sprintf(p, "\\u%02x%02x",
- r[i + 0] & 0xFF,
- r[i + 1] & 0xFF);
- p += 6;
- }
- Py_DECREF(w);
- } else {
- *p++ = *s++;
- }
- }
- len = p - buf;
- s = buf;
- }
- if (rawmode)
- v = PyUnicode_DecodeRawUnicodeEscape(s, len, NULL);
- else
- v = PyUnicode_DecodeUnicodeEscape(s, len, NULL);
- Py_XDECREF(u);
- return v;
+ PyObject *v, *u;
+ char *buf;
+ char *p;
+ const char *end;
+ if (encoding == NULL) {
+ buf = (char *)s;
+ u = NULL;
+ } else if (strcmp(encoding, "iso-8859-1") == 0) {
+ buf = (char *)s;
+ u = NULL;
+ } else {
+ /* "\XX" may become "\u005c\uHHLL" (12 bytes) */
+ u = PyString_FromStringAndSize((char *)NULL, len * 4);
+ if (u == NULL)
+ return NULL;
+ p = buf = PyString_AsString(u);
+ end = s + len;
+ while (s < end) {
+ if (*s == '\\') {
+ *p++ = *s++;
+ if (*s & 0x80) {
+ strcpy(p, "u005c");
+ p += 5;
+ }
+ }
+ if (*s & 0x80) { /* XXX inefficient */
+ PyObject *w;
+ char *r;
+ Py_ssize_t rn, i;
+ w = decode_utf8(&s, end, "utf-16-be");
+ if (w == NULL) {
+ Py_DECREF(u);
+ return NULL;
+ }
+ r = PyString_AsString(w);
+ rn = PyString_Size(w);
+ assert(rn % 2 == 0);
+ for (i = 0; i < rn; i += 2) {
+ sprintf(p, "\\u%02x%02x",
+ r[i + 0] & 0xFF,
+ r[i + 1] & 0xFF);
+ p += 6;
+ }
+ Py_DECREF(w);
+ } else {
+ *p++ = *s++;
+ }
+ }
+ len = p - buf;
+ s = buf;
+ }
+ if (rawmode)
+ v = PyUnicode_DecodeRawUnicodeEscape(s, len, NULL);
+ else
+ v = PyUnicode_DecodeUnicodeEscape(s, len, NULL);
+ Py_XDECREF(u);
+ return v;
}
/* s is a Python string literal, including the bracketing quote characters,
static PyObject *
parsestr(const char *s, const char *encoding)
{
- size_t len;
- int quote = Py_CHARMASK(*s);
- int rawmode = 0;
- int need_encoding;
- int unicode = 0;
-
- if (isalpha(quote) || quote == '_') {
- if (quote == 'u' || quote == 'U') {
- quote = *++s;
- unicode = 1;
- }
- if (quote == 'r' || quote == 'R') {
- quote = *++s;
- rawmode = 1;
- }
- }
- if (quote != '\'' && quote != '\"') {
- PyErr_BadInternalCall();
- return NULL;
- }
- s++;
- len = strlen(s);
- if (len > INT_MAX) {
- PyErr_SetString(PyExc_OverflowError,
- "string to parse is too long");
- return NULL;
- }
- if (s[--len] != quote) {
- PyErr_BadInternalCall();
- return NULL;
- }
- if (len >= 4 && s[0] == quote && s[1] == quote) {
- s += 2;
- len -= 2;
- if (s[--len] != quote || s[--len] != quote) {
- PyErr_BadInternalCall();
- return NULL;
- }
- }
+ size_t len;
+ int quote = Py_CHARMASK(*s);
+ int rawmode = 0;
+ int need_encoding;
+ int unicode = 0;
+
+ if (isalpha(quote) || quote == '_') {
+ if (quote == 'u' || quote == 'U') {
+ quote = *++s;
+ unicode = 1;
+ }
+ if (quote == 'r' || quote == 'R') {
+ quote = *++s;
+ rawmode = 1;
+ }
+ }
+ if (quote != '\'' && quote != '\"') {
+ PyErr_BadInternalCall();
+ return NULL;
+ }
+ s++;
+ len = strlen(s);
+ if (len > INT_MAX) {
+ PyErr_SetString(PyExc_OverflowError,
+ "string to parse is too long");
+ return NULL;
+ }
+ if (s[--len] != quote) {
+ PyErr_BadInternalCall();
+ return NULL;
+ }
+ if (len >= 4 && s[0] == quote && s[1] == quote) {
+ s += 2;
+ len -= 2;
+ if (s[--len] != quote || s[--len] != quote) {
+ PyErr_BadInternalCall();
+ return NULL;
+ }
+ }
#ifdef Py_USING_UNICODE
- if (unicode || Py_UnicodeFlag) {
- return decode_unicode(s, len, rawmode, encoding);
- }
+ if (unicode || Py_UnicodeFlag) {
+ return decode_unicode(s, len, rawmode, encoding);
+ }
#endif
- need_encoding = (encoding != NULL &&
- strcmp(encoding, "utf-8") != 0 &&
- strcmp(encoding, "iso-8859-1") != 0);
- if (rawmode || strchr(s, '\\') == NULL) {
- if (need_encoding) {
+ need_encoding = (encoding != NULL &&
+ strcmp(encoding, "utf-8") != 0 &&
+ strcmp(encoding, "iso-8859-1") != 0);
+ if (rawmode || strchr(s, '\\') == NULL) {
+ if (need_encoding) {
#ifndef Py_USING_UNICODE
- /* This should not happen - we never see any other
- encoding. */
- Py_FatalError(
- "cannot deal with encodings in this build.");
+ /* This should not happen - we never see any other
+ encoding. */
+ Py_FatalError(
+ "cannot deal with encodings in this build.");
#else
- PyObject *v, *u = PyUnicode_DecodeUTF8(s, len, NULL);
- if (u == NULL)
- return NULL;
- v = PyUnicode_AsEncodedString(u, encoding, NULL);
- Py_DECREF(u);
- return v;
+ PyObject *v, *u = PyUnicode_DecodeUTF8(s, len, NULL);
+ if (u == NULL)
+ return NULL;
+ v = PyUnicode_AsEncodedString(u, encoding, NULL);
+ Py_DECREF(u);
+ return v;
#endif
- } else {
- return PyString_FromStringAndSize(s, len);
- }
- }
+ } else {
+ return PyString_FromStringAndSize(s, len);
+ }
+ }
- return PyString_DecodeEscape(s, len, NULL, unicode,
- need_encoding ? encoding : NULL);
+ return PyString_DecodeEscape(s, len, NULL, unicode,
+ need_encoding ? encoding : NULL);
}
/* Build a Python string object out of a STRING atom. This takes care of
static PyObject *
parsestrplus(struct compiling *c, const node *n)
{
- PyObject *v;
- int i;
- REQ(CHILD(n, 0), STRING);
- if ((v = parsestr(STR(CHILD(n, 0)), c->c_encoding)) != NULL) {
- /* String literal concatenation */
- for (i = 1; i < NCH(n); i++) {
- PyObject *s;
- s = parsestr(STR(CHILD(n, i)), c->c_encoding);
- if (s == NULL)
- goto onError;
- if (PyString_Check(v) && PyString_Check(s)) {
- PyString_ConcatAndDel(&v, s);
- if (v == NULL)
- goto onError;
- }
+ PyObject *v;
+ int i;
+ REQ(CHILD(n, 0), STRING);
+ if ((v = parsestr(STR(CHILD(n, 0)), c->c_encoding)) != NULL) {
+ /* String literal concatenation */
+ for (i = 1; i < NCH(n); i++) {
+ PyObject *s;
+ s = parsestr(STR(CHILD(n, i)), c->c_encoding);
+ if (s == NULL)
+ goto onError;
+ if (PyString_Check(v) && PyString_Check(s)) {
+ PyString_ConcatAndDel(&v, s);
+ if (v == NULL)
+ goto onError;
+ }
#ifdef Py_USING_UNICODE
- else {
- PyObject *temp = PyUnicode_Concat(v, s);
- Py_DECREF(s);
- Py_DECREF(v);
- v = temp;
- if (v == NULL)
- goto onError;
- }
+ else {
+ PyObject *temp = PyUnicode_Concat(v, s);
+ Py_DECREF(s);
+ Py_DECREF(v);
+ v = temp;
+ if (v == NULL)
+ goto onError;
+ }
#endif
- }
- }
- return v;
+ }
+ }
+ return v;
onError:
- Py_XDECREF(v);
- return NULL;
+ Py_XDECREF(v);
+ return NULL;
}
projects / thirdparty / Python / cpython.git / commitdiff
