36 lines
846 B
C++
Executable File
36 lines
846 B
C++
Executable File
namespace factor
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{
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inline static cell callstack_size(cell size)
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{
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return sizeof(callstack) + size;
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}
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/* This is a little tricky. The iterator may allocate memory, so we
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keep the callstack in a GC root and use relative offsets */
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template<typename Iterator> void factor_vm::iterate_callstack_object(callstack *stack_, Iterator &iterator)
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{
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data_root<callstack> stack(stack_,this);
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fixnum frame_offset = untag_fixnum(stack->length) - sizeof(stack_frame);
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while(frame_offset >= 0)
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{
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stack_frame *frame = stack->frame_at(frame_offset);
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frame_offset -= frame->size;
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iterator(frame);
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}
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}
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template<typename Iterator> void factor_vm::iterate_callstack(context *ctx, Iterator &iterator)
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{
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stack_frame *frame = ctx->callstack_bottom - 1;
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while(frame >= ctx->callstack_top)
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{
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iterator(frame);
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frame = frame_successor(frame);
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}
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}
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}
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