mirror of
https://github.com/johndoe6345789/typthon.git
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b198f511d2
Massive automated renaming of all Py_/PyObject/etc. prefixes to Ty_/TyObject/etc. This includes: - All public API types (TyObject, TyTypeObject, etc.) - All public API functions (Ty_Initialize, Ty_BuildValue, etc.) - All internal API (_Ty_ prefixes) - Reference counting macros (Ty_INCREF, Ty_DECREF, etc.) - Type flags (Ty_TPFLAGS_*) - Debug flags (Ty_DEBUG, Ty_TRACE_REFS, etc.) - All object type APIs (TyList_, TyDict_, TyUnicode_, etc.) This changes over 60,000 occurrences across 1000+ files. Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>
120 lines
3.9 KiB
C
120 lines
3.9 KiB
C
#include "Python.h"
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#include "pycore_ast.h" // _TyAST_GetDocString()
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#include "pycore_symtable.h" // _PyFutureFeatures
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#include "pycore_unicodeobject.h" // _TyUnicode_EqualToASCIIString()
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#define UNDEFINED_FUTURE_FEATURE "future feature %.100s is not defined"
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static int
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future_check_features(_PyFutureFeatures *ff, stmt_ty s, TyObject *filename)
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{
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Ty_ssize_t i;
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assert(s->kind == ImportFrom_kind);
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asdl_alias_seq *names = s->v.ImportFrom.names;
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for (i = 0; i < asdl_seq_LEN(names); i++) {
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alias_ty name = (alias_ty)asdl_seq_GET(names, i);
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const char *feature = TyUnicode_AsUTF8(name->name);
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if (!feature)
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return 0;
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if (strcmp(feature, FUTURE_NESTED_SCOPES) == 0) {
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continue;
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} else if (strcmp(feature, FUTURE_GENERATORS) == 0) {
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continue;
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} else if (strcmp(feature, FUTURE_DIVISION) == 0) {
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continue;
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} else if (strcmp(feature, FUTURE_ABSOLUTE_IMPORT) == 0) {
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continue;
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} else if (strcmp(feature, FUTURE_WITH_STATEMENT) == 0) {
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continue;
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} else if (strcmp(feature, FUTURE_PRINT_FUNCTION) == 0) {
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continue;
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} else if (strcmp(feature, FUTURE_UNICODE_LITERALS) == 0) {
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continue;
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} else if (strcmp(feature, FUTURE_BARRY_AS_BDFL) == 0) {
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ff->ff_features |= CO_FUTURE_BARRY_AS_BDFL;
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} else if (strcmp(feature, FUTURE_GENERATOR_STOP) == 0) {
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continue;
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} else if (strcmp(feature, FUTURE_ANNOTATIONS) == 0) {
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ff->ff_features |= CO_FUTURE_ANNOTATIONS;
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} else if (strcmp(feature, "braces") == 0) {
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TyErr_SetString(TyExc_SyntaxError,
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"not a chance");
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TyErr_RangedSyntaxLocationObject(filename,
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name->lineno,
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name->col_offset + 1,
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name->end_lineno,
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name->end_col_offset + 1);
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return 0;
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} else {
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TyErr_Format(TyExc_SyntaxError,
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UNDEFINED_FUTURE_FEATURE, feature);
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TyErr_RangedSyntaxLocationObject(filename,
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name->lineno,
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name->col_offset + 1,
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name->end_lineno,
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name->end_col_offset + 1);
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return 0;
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}
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}
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return 1;
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}
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static int
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future_parse(_PyFutureFeatures *ff, mod_ty mod, TyObject *filename)
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{
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if (!(mod->kind == Module_kind || mod->kind == Interactive_kind)) {
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return 1;
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}
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Ty_ssize_t n = asdl_seq_LEN(mod->v.Module.body);
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if (n == 0) {
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return 1;
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}
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Ty_ssize_t i = 0;
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if (_TyAST_GetDocString(mod->v.Module.body) != NULL) {
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i++;
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}
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for (; i < n; i++) {
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stmt_ty s = (stmt_ty)asdl_seq_GET(mod->v.Module.body, i);
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/* The only things that can precede a future statement
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* are another future statement and a doc string.
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*/
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if (s->kind == ImportFrom_kind && s->v.ImportFrom.level == 0) {
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identifier modname = s->v.ImportFrom.module;
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if (modname &&
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_TyUnicode_EqualToASCIIString(modname, "__future__")) {
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if (!future_check_features(ff, s, filename)) {
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return 0;
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}
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ff->ff_location = SRC_LOCATION_FROM_AST(s);
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}
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else {
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return 1;
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}
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}
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else {
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return 1;
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}
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}
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return 1;
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}
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int
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_PyFuture_FromAST(mod_ty mod, TyObject *filename, _PyFutureFeatures *ff)
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{
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ff->ff_features = 0;
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ff->ff_location = (_Ty_SourceLocation){-1, -1, -1, -1};
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if (!future_parse(ff, mod, filename)) {
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return 0;
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}
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return 1;
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}
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