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support find_ins_unit()

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This commit is contained in:
lyon 2023-05-20 17:44:01 +08:00
parent e81fbcc0f7
commit 977d844d2c
1 changed files with 23 additions and 26 deletions
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49
src/PikaVM.c
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@ -1733,36 +1733,20 @@ static Arg* VM_instruction_handler_RET(PikaObj* self,
return NULL;
}
static InstructUnit* _find_ins_unit_up(ByteCodeFrame* bcframe,
int32_t pc_start,
enum InstructIndex index,
int32_t* p_offset) {
/* find super class */
int instructArray_size = instructArray_getSize(&(bcframe->instruct_array));
while (1) {
*p_offset -= instructUnit_getSize();
if (pc_start + *p_offset >= instructArray_size) {
return 0;
}
InstructUnit* unit = instructArray_getByOffset(
&(bcframe->instruct_array), pc_start + *p_offset);
if (CLS == instructUnit_getInstructIndex(unit)) {
return unit;
}
}
return NULL;
}
static InstructUnit* _find_ins_unit_down(ByteCodeFrame* bcframe,
static InstructUnit* _find_instruct_unit(ByteCodeFrame* bcframe,
int32_t pc_start,
enum InstructIndex index,
int32_t* p_offset) {
/* find super class */
int32_t* p_offset,
PIKA_BOOL search_upwards) {
/* find instruct unit */
int instructArray_size = instructArray_getSize(&(bcframe->instruct_array));
while (1) {
*p_offset += instructUnit_getSize();
*p_offset += (search_upwards ? -1 : 1) * instructUnit_getSize();
if (pc_start + *p_offset >= instructArray_size) {
return 0;
return NULL;
}
if (pc_start + *p_offset < 0) {
return NULL;
}
InstructUnit* unit = instructArray_getByOffset(
&(bcframe->instruct_array), pc_start + *p_offset);
@ -1770,7 +1754,20 @@ static InstructUnit* _find_ins_unit_down(ByteCodeFrame* bcframe,
return unit;
}
}
return NULL;
}
static InstructUnit* _find_ins_unit_up(ByteCodeFrame* bcframe,
int32_t pc_start,
enum InstructIndex index,
int32_t* p_offset) {
return _find_instruct_unit(bcframe, pc_start, index, p_offset, PIKA_TRUE);
}
static InstructUnit* _find_ins_unit_down(ByteCodeFrame* bcframe,
int32_t pc_start,
enum InstructIndex index,
int32_t* p_offset) {
return _find_instruct_unit(bcframe, pc_start, index, p_offset, PIKA_FALSE);
}
#if !PIKA_NANO_ENABLE