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/* go-runtime-error.c -- Go runtime error.
Copyright 2010 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file. */
#include "runtime.h"
/* The compiler generates calls to this function. This enum values
are known to the compiler and used by compiled code. Any change
here must be reflected in the compiler. */
enum
{
/* Slice index out of bounds: negative or larger than the length of
the slice. */
SLICE_INDEX_OUT_OF_BOUNDS = 0,
/* Array index out of bounds. */
ARRAY_INDEX_OUT_OF_BOUNDS = 1,
/* String index out of bounds. */
STRING_INDEX_OUT_OF_BOUNDS = 2,
/* Slice slice out of bounds: negative or larger than the length of
the slice or high bound less than low bound. */
SLICE_SLICE_OUT_OF_BOUNDS = 3,
/* Array slice out of bounds. */
ARRAY_SLICE_OUT_OF_BOUNDS = 4,
/* String slice out of bounds. */
STRING_SLICE_OUT_OF_BOUNDS = 5,
/* Dereference of nil pointer. This is used when there is a
dereference of a pointer to a very large struct or array, to
ensure that a gigantic array is not used a proxy to access random
memory locations. */
NIL_DEREFERENCE = 6,
/* Slice length or capacity out of bounds in make: negative or
overflow or length greater than capacity. */
MAKE_SLICE_OUT_OF_BOUNDS = 7,
/* Map capacity out of bounds in make: negative or overflow. */
MAKE_MAP_OUT_OF_BOUNDS = 8,
/* Channel capacity out of bounds in make: negative or overflow. */
MAKE_CHAN_OUT_OF_BOUNDS = 9,
/* Integer division by zero. */
DIVISION_BY_ZERO = 10,
/* Go statement with nil function. */
GO_NIL = 11
};
extern void __go_runtime_error () __attribute__ ((noreturn));
void
__go_runtime_error (int32 i)
{
switch (i)
{
case SLICE_INDEX_OUT_OF_BOUNDS:
case ARRAY_INDEX_OUT_OF_BOUNDS:
case STRING_INDEX_OUT_OF_BOUNDS:
runtime_panicstring ("index out of range");
case SLICE_SLICE_OUT_OF_BOUNDS:
case ARRAY_SLICE_OUT_OF_BOUNDS:
case STRING_SLICE_OUT_OF_BOUNDS:
runtime_panicstring ("slice bounds out of range");
case NIL_DEREFERENCE:
runtime_panicstring ("nil pointer dereference");
case MAKE_SLICE_OUT_OF_BOUNDS:
runtime_panicstring ("make slice len or cap out of range");
case MAKE_MAP_OUT_OF_BOUNDS:
runtime_panicstring ("make map len out of range");
case MAKE_CHAN_OUT_OF_BOUNDS:
runtime_panicstring ("make chan len out of range");
case DIVISION_BY_ZERO:
runtime_panicstring ("integer divide by zero");
case GO_NIL:
/* This one is a throw, rather than a panic. Set throwing to
not dump full stacks. */
runtime_g()->m->throwing = -1;
runtime_throw ("go of nil func value");
default:
runtime_panicstring ("unknown runtime error");
}
}
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