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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| # Functions and constants used to avoid duplicating error messages | ||
|
|
||
| from .Errors import performance_hint | ||
| from . import PyrexTypes | ||
| from .Builtin import ( | ||
| unicode_type, str_type, bytes_type, basestring_type | ||
| ) | ||
|
|
||
| # error messages when coercing from key[0] to key[1] | ||
| coercion_error_dict = { | ||
| # string related errors | ||
| (unicode_type, str_type): ("Cannot convert Unicode string to 'str' implicitly." | ||
| " This is not portable and requires explicit encoding."), | ||
| (unicode_type, bytes_type): "Cannot convert Unicode string to 'bytes' implicitly, encoding required.", | ||
| (unicode_type, PyrexTypes.c_char_ptr_type): "Unicode objects only support coercion to Py_UNICODE*.", | ||
| (unicode_type, PyrexTypes.c_const_char_ptr_type): "Unicode objects only support coercion to Py_UNICODE*.", | ||
| (unicode_type, PyrexTypes.c_uchar_ptr_type): "Unicode objects only support coercion to Py_UNICODE*.", | ||
| (unicode_type, PyrexTypes.c_const_uchar_ptr_type): "Unicode objects only support coercion to Py_UNICODE*.", | ||
| (bytes_type, unicode_type): "Cannot convert 'bytes' object to unicode implicitly, decoding required", | ||
| (bytes_type, str_type): "Cannot convert 'bytes' object to str implicitly. This is not portable to Py3.", | ||
| (bytes_type, basestring_type): ("Cannot convert 'bytes' object to basestring implicitly." | ||
| " This is not portable to Py3."), | ||
| (bytes_type, PyrexTypes.c_py_unicode_ptr_type): "Cannot convert 'bytes' object to Py_UNICODE*, use 'unicode'.", | ||
| (bytes_type, PyrexTypes.c_const_py_unicode_ptr_type): ( | ||
| "Cannot convert 'bytes' object to Py_UNICODE*, use 'unicode'."), | ||
| (basestring_type, bytes_type): "Cannot convert 'basestring' object to bytes implicitly. This is not portable.", | ||
| (str_type, unicode_type): ("str objects do not support coercion to unicode," | ||
| " use a unicode string literal instead (u'')"), | ||
| (str_type, bytes_type): "Cannot convert 'str' to 'bytes' implicitly. This is not portable.", | ||
| (str_type, PyrexTypes.c_char_ptr_type): "'str' objects do not support coercion to C types (use 'bytes'?).", | ||
| (str_type, PyrexTypes.c_const_char_ptr_type): "'str' objects do not support coercion to C types (use 'bytes'?).", | ||
| (str_type, PyrexTypes.c_uchar_ptr_type): "'str' objects do not support coercion to C types (use 'bytes'?).", | ||
| (str_type, PyrexTypes.c_const_uchar_ptr_type): "'str' objects do not support coercion to C types (use 'bytes'?).", | ||
| (str_type, PyrexTypes.c_py_unicode_ptr_type): "'str' objects do not support coercion to C types (use 'unicode'?).", | ||
| (str_type, PyrexTypes.c_const_py_unicode_ptr_type): ( | ||
| "'str' objects do not support coercion to C types (use 'unicode'?)."), | ||
| (PyrexTypes.c_char_ptr_type, unicode_type): "Cannot convert 'char*' to unicode implicitly, decoding required", | ||
| (PyrexTypes.c_const_char_ptr_type, unicode_type): ( | ||
| "Cannot convert 'char*' to unicode implicitly, decoding required"), | ||
| (PyrexTypes.c_uchar_ptr_type, unicode_type): "Cannot convert 'char*' to unicode implicitly, decoding required", | ||
| (PyrexTypes.c_const_uchar_ptr_type, unicode_type): ( | ||
| "Cannot convert 'char*' to unicode implicitly, decoding required"), | ||
| } | ||
|
|
||
| def find_coercion_error(type_tuple, default, env): | ||
| err = coercion_error_dict.get(type_tuple) | ||
| if err is None: | ||
| return default | ||
| elif (env.directives['c_string_encoding'] and | ||
| any(t in type_tuple for t in (PyrexTypes.c_char_ptr_type, PyrexTypes.c_uchar_ptr_type, | ||
| PyrexTypes.c_const_char_ptr_type, PyrexTypes.c_const_uchar_ptr_type))): | ||
| if type_tuple[1].is_pyobject: | ||
| return default | ||
| elif env.directives['c_string_encoding'] in ('ascii', 'default'): | ||
| return default | ||
| else: | ||
| return "'%s' objects do not support coercion to C types with non-ascii or non-default c_string_encoding" % type_tuple[0].name | ||
| else: | ||
| return err | ||
|
|
||
| def write_noexcept_performance_hint(pos, function_name = None, void_return = False): | ||
| on_what = "on '%s' " % function_name if function_name else "" | ||
| msg = ( | ||
| "Exception check %swill always require the GIL to be acquired. Possible solutions:\n" | ||
| "\t1. Declare the function as 'noexcept' if you control the definition and " | ||
| "you're sure you don't want the function to raise exceptions.\n" | ||
| ) % on_what | ||
| if void_return: | ||
| msg += "\t2. Use an 'int' return type on the function to allow an error code to be returned." | ||
| performance_hint(pos, msg) |
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