(5/?) Exception handling

errors.go

@@ -0,0 +1,165 @@
+package python3
+
+/*
+#include "Python.h"
+*/
+import "C"
+
+import (
+	"unsafe"
+)
+
+//PyErr_Clear : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_Clear
+func PyErr_Clear() {
+	C.PyErr_Clear()
+}
+
+//PyErr_PrintEx : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_PrintEx
+func PyErr_PrintEx(setSysLastVars bool) {
+	if setSysLastVars {
+		C.PyErr_PrintEx(1)
+	} else {
+		C.PyErr_PrintEx(0)
+	}
+}
+
+//PyErr_Print : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_Print
+func PyErr_Print() {
+	C.PyErr_PrintEx(1)
+}
+
+//PyErr_WriteUnraisable : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_WriteUnraisable
+func PyErr_WriteUnraisable(obj *PyObject) {
+	C.PyErr_WriteUnraisable(toc(obj))
+}
+
+//PyErr_SetString : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_SetString
+func PyErr_SetString(pyType *PyObject, message string) {
+	cmessage := C.CString(message)
+	defer C.free(unsafe.Pointer(cmessage))
+
+	C.PyErr_SetString(toc(pyType), cmessage)
+
+}
+
+//PyErr_SetObject : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_SetObject
+func PyErr_SetObject(pyType, value *PyObject) {
+	C.PyErr_SetObject(toc(pyType), toc(value))
+}
+
+//PyErr_SetNone : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_SetNone
+func PyErr_SetNone(pyType *PyObject) {
+	C.PyErr_SetNone(toc(pyType))
+}
+
+//PyErr_BadArgument : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_BadArgument
+func PyErr_BadArgument() {
+	C.PyErr_BadArgument()
+}
+
+//PyErr_NoMemory : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_NoMemory
+func PyErr_NoMemory() *PyObject {
+	return togo(C.PyErr_NoMemory())
+}
+
+//PyErr_SetImportErrorSubclass : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_SetImportErrorSubclass
+func PyErr_SetImportErrorSubclass(msg, name, path, subclass *PyObject) *PyObject {
+	return togo(C.PyErr_SetImportErrorSubclass(toc(msg), toc(name), toc(path), toc(subclass)))
+}
+
+//PyErr_SetImportError : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_SetImportError
+func PyErr_SetImportError(msg, name, path *PyObject) *PyObject {
+	return togo(C.PyErr_SetImportError(toc(msg), toc(name), toc(path)))
+}
+
+//PyErr_SyntaxLocationObject : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_SyntaxLocationObject
+func PyErr_SyntaxLocationObject(filename *PyObject, lineno, col_offset int) {
+	C.PyErr_SyntaxLocationObject(toc(filename), C.int(lineno), C.int(col_offset))
+}
+
+//PyErr_SyntaxLocationEx : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_SyntaxLocationEx
+func PyErr_SyntaxLocationEx(filename string, lineno, col_offset int) {
+	cfilename := C.CString(filename)
+	defer C.free(unsafe.Pointer(cfilename))
+
+	C.PyErr_SyntaxLocationEx(cfilename, C.int(lineno), C.int(col_offset))
+}
+
+//PyErr_SyntaxLocation : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_SyntaxLocation
+func PyErr_SyntaxLocation(filename string, lineno int) {
+	cfilename := C.CString(filename)
+	defer C.free(unsafe.Pointer(cfilename))
+
+	C.PyErr_SyntaxLocation(cfilename, C.int(lineno))
+
+}
+
+//PyErr_BadInternalCall : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_BadInternalCall
+func PyErr_BadInternalCall() {
+	C.PyErr_BadInternalCall()
+}
+
+//PyErr_Occurred : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_Occurred
+func PyErr_Occurred() *PyObject {
+	return togo(C.PyErr_Occurred())
+}
+
+//PyErr_GivenExceptionMatches : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_GivenExceptionMatches
+func PyErr_GivenExceptionMatches(given, exc *PyObject) bool {
+	ret := C.PyErr_GivenExceptionMatches(toc(given), toc(exc))
+	return ret == 1
+}
+
+//PyErr_ExceptionMatches : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_ExceptionMatches
+func PyErr_ExceptionMatches(exc *PyObject) bool {
+	ret := C.PyErr_ExceptionMatches(toc(exc))
+	return ret == 1
+}
+
+//PyErr_Fetch : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_Fetch
+func PyErr_Fetch() (*PyObject, *PyObject, *PyObject) {
+	var pyType, value, traceback *C.PyObject
+	C.PyErr_Fetch(&pyType, &value, &traceback)
+	return togo(pyType), togo(value), togo(traceback)
+}
+
+//PyErr_Restore : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_Restore
+func PyErr_Restore(pyType *PyObject, value *PyObject, traceback *PyObject) {
+	C.PyErr_Restore(toc(pyType), toc(value), toc(traceback))
+}
+
+//PyErr_NormalizeException : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_NormalizeException
+func PyErr_NormalizeException(exc, val, tb *PyObject) (*PyObject, *PyObject, *PyObject) {
+	cexc := toc(exc)
+	cval := toc(val)
+	ctb := toc(tb)
+	C.PyErr_NormalizeException(&cexc, &cval, &ctb)
+	return togo(cexc), togo(cval), togo(ctb)
+}
+
+//PyErr_GetExcInfo : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_GetExcInfo
+func PyErr_GetExcInfo() (*PyObject, *PyObject, *PyObject) {
+	var pyType, value, traceback *C.PyObject
+	C.PyErr_GetExcInfo(&pyType, &value, &traceback)
+	return togo(pyType), togo(value), togo(traceback)
+}
+
+//PyErr_SetExcInfo : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_SetExcInfo
+func PyErr_SetExcInfo(pyType *PyObject, value *PyObject, traceback *PyObject) {
+	C.PyErr_SetExcInfo(toc(pyType), toc(value), toc(traceback))
+}
+
+//PyErr_CheckSignals : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_CheckSignals
+func PyErr_CheckSignals() int {
+	return int(C.PyErr_CheckSignals())
+}
+
+//PyErr_SetInterrupt : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_SetInterrupt
+func PyErr_SetInterrupt() {
+	C.PyErr_SetInterrupt()
+}
+
+//PySignal_SetWakeupFd : https://docs.python.org/3/c-api/exceptions.html#c.PySignal_SetWakeupFd
+func PySignal_SetWakeupFd(fd uintptr) uintptr {
+	return uintptr(C.PySignal_SetWakeupFd(C.int(fd)))
+}

exceptions.go

@@ -0,0 +1,119 @@
+package python3
+
+/*
+#include "Python.h"
+*/
+import "C"
+
+import (
+	"unsafe"
+)
+
+/*
+All standard Python exceptions are available as global variables whose names are PyExc_ followed by the Python exception name.
+These have the type PyObject*; they are all class objects.
+*/
+var (
+	PyExc_BaseException          = togo(C.PyExc_BaseException)
+	PyExc_Exception              = togo(C.PyExc_Exception)
+	PyExc_ArithmeticError        = togo(C.PyExc_ArithmeticError)
+	PyExc_AssertionError         = togo(C.PyExc_AssertionError)
+	PyExc_AttributeError         = togo(C.PyExc_AttributeError)
+	PyExc_BlockingIOError        = togo(C.PyExc_BlockingIOError)
+	PyExc_BrokenPipeError        = togo(C.PyExc_BrokenPipeError)
+	PyExc_BufferError            = togo(C.PyExc_BufferError)
+	PyExc_ChildProcessError      = togo(C.PyExc_ChildProcessError)
+	PyExc_ConnectionAbortedError = togo(C.PyExc_ConnectionAbortedError)
+	PyExc_ConnectionError        = togo(C.PyExc_ConnectionError)
+	PyExc_ConnectionRefusedError = togo(C.PyExc_ConnectionRefusedError)
+	PyExc_ConnectcionResetError  = togo(C.PyExc_ConnectionResetError)
+	PyExc_EOFError               = togo(C.PyExc_EOFError)
+	PyExc_FileExistsError        = togo(C.PyExc_FileExistsError)
+	PyExc_FileNotFoundError      = togo(C.PyExc_FileNotFoundError)
+	PyExc_FloatingPointError     = togo(C.PyExc_FloatingPointError)
+	PyExc_GeneratorExit          = togo(C.PyExc_GeneratorExit)
+	PyExc_ImportError            = togo(C.PyExc_ImportError)
+	PyExc_IndentationError       = togo(C.PyExc_IndentationError)
+	PyExc_IndexError             = togo(C.PyExc_IndexError)
+	PyExc_InterruptedError       = togo(C.PyExc_InterruptedError)
+	PyExc_IsADirectoryError      = togo(C.PyExc_IsADirectoryError)
+	PyExc_KeyError               = togo(C.PyExc_KeyError)
+	PyExc_KeyboardInterrupt      = togo(C.PyExc_KeyboardInterrupt)
+	PyExc_LookupError            = togo(C.PyExc_LookupError)
+	PyExc_MemoryError            = togo(C.PyExc_MemoryError)
+	PyExc_ModuleNotFoundError    = togo(C.PyExc_ModuleNotFoundError)
+	PyExc_NameError              = togo(C.PyExc_NameError)
+	PyExc_NotADirectoryError     = togo(C.PyExc_NotADirectoryError)
+	PyExc_NotImplementedError    = togo(C.PyExc_NotImplementedError)
+	PyExc_OSError                = togo(C.PyExc_OSError)
+	PyExc_OverflowError          = togo(C.PyExc_OverflowError)
+	PyExc_PermissionError        = togo(C.PyExc_PermissionError)
+	PyExc_ProcessLookupError     = togo(C.PyExc_ProcessLookupError)
+	PyExc_RecursionError         = togo(C.PyExc_RecursionError)
+	PyExc_ReferenceError         = togo(C.PyExc_ReferenceError)
+	PyExc_RuntimeError           = togo(C.PyExc_RuntimeError)
+	PyExc_StopAsyncIteration     = togo(C.PyExc_StopAsyncIteration)
+	PyExc_StopIteration          = togo(C.PyExc_StopIteration)
+	PyExc_SyntaxError            = togo(C.PyExc_SyntaxError)
+	PyExc_SystemError            = togo(C.PyExc_SystemError)
+	PyExc_SystemExit             = togo(C.PyExc_SystemExit)
+	PyExc_TabError               = togo(C.PyExc_TabError)
+	PyExc_TimeoutError           = togo(C.PyExc_TimeoutError)
+	PyExc_TypeError              = togo(C.PyExc_TypeError)
+	PyExc_UnboundLocalError      = togo(C.PyExc_UnboundLocalError)
+	PyExc_UnicodeDecodeError     = togo(C.PyExc_UnicodeDecodeError)
+	PyExc_UnicodeEncodeError     = togo(C.PyExc_UnicodeEncodeError)
+	PyExc_UnicodeError           = togo(C.PyExc_UnicodeError)
+	PyExc_UnicodeTranslateError  = togo(C.PyExc_UnicodeTranslateError)
+	PyExc_ValueError             = togo(C.PyExc_ValueError)
+	PyExc_ZeroDivisionError      = togo(C.PyExc_ZeroDivisionError)
+)
+
+//PyErr_NewException : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_NewException
+func PyErr_NewException(name string, base, dict *PyObject) *PyObject {
+	cname := C.CString(name)
+	defer C.free(unsafe.Pointer(cname))
+
+	return togo(C.PyErr_NewException(cname, toc(base), toc(dict)))
+}
+
+//PyErr_NewExceptionWithDoc : https://docs.python.org/3/c-api/exceptions.html#c.PyErr_NewExceptionWithDoc
+func PyErr_NewExceptionWithDoc(name, doc string, base, dict *PyObject) *PyObject {
+	cname := C.CString(name)
+	defer C.free(unsafe.Pointer(cname))
+
+	cdoc := C.CString(doc)
+	defer C.free(unsafe.Pointer(cdoc))
+
+	return togo(C.PyErr_NewExceptionWithDoc(cname, cdoc, toc(base), toc(dict)))
+}
+
+//PyException_GetTraceback : https://docs.python.org/3/c-api/exceptions.html#c.PyException_GetTraceback
+func PyException_GetTraceback(ex *PyObject) *PyObject {
+	return togo(C.PyException_GetTraceback(toc(ex)))
+}
+
+//PyException_SetTraceback : https://docs.python.org/3/c-api/exceptions.html#c.PyException_SetTraceback
+func PyException_SetTraceback(ex, tb *PyObject) {
+	C.PyException_SetTraceback(toc(ex), toc(tb))
+}
+
+//PyException_GetContext : https://docs.python.org/3/c-api/exceptions.html#c.PyException_GetContext
+func PyException_GetContext(ex *PyObject) *PyObject {
+	return togo(C.PyException_GetContext(toc(ex)))
+}
+
+//PyException_SetContext : https://docs.python.org/3/c-api/exceptions.html#c.PyException_SetContext
+func PyException_SetContext(ex, ctx *PyObject) {
+	C.PyException_SetContext(toc(ex), toc(ctx))
+}
+
+//PyException_GetCause : https://docs.python.org/3/c-api/exceptions.html#c.PyException_GetCause
+func PyException_GetCause(ex *PyObject) *PyObject {
+	return togo(C.PyException_GetCause(toc(ex)))
+}
+
+//PyException_SetCause : https://docs.python.org/3/c-api/exceptions.html#c.PyException_SetCause
+func PyException_SetCause(ex, cause *PyObject) {
+	C.PyException_SetCause(toc(ex), toc(cause))
+}

helper.go

@@ -13,4 +13,3 @@ func togo(cobject *C.PyObject) *PyObject {
 func toc(object *PyObject) *C.PyObject {
 	return (*C.PyObject)(object)
 }
-