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