This represents a position within a bitcode file, implemented on top of a SimpleBitstreamCursor.
Declared in <llvm/Bitstream/BitstreamReader.h>
class BitstreamCursor;
Unlike iterators, BitstreamCursors are heavy-weight objects that should not be passed by value.
| Name | Description |
|---|---|
Unnamed enum | Flags that modify the behavior of advance(). |
| Name | Description |
|---|---|
BitstreamCursor [constructor] | Constructors |
EnterSubBlock | Having read the ENTER_SUBBLOCK abbrevid, and enter the block. |
ReadAbbrevRecord | Read a DEFINE_ABBREV record and install the new abbreviation. |
ReadBlockEnd | Handle END_BLOCK: pop block scope and realign; return true on imbalance. |
ReadBlockInfoBlock | Read and return a block info block from the bitstream. If an error was encountered, return std::nullopt. |
ReadCode | Read the next abbrev/record code using the current block's code width. |
ReadSubBlockID | Having read the ENTER_SUBBLOCK code, read the BlockID for the block. |
SkipBlock | Having read the ENTER_SUBBLOCK abbrevid and a BlockID, skip over the body of this block. |
advance | Advance the current bitstream, returning the next entry in the stream. |
advanceSkippingSubblocks | This is a convenience function for clients that don't expect any subblocks. This just skips over them automatically. |
getAbbrev | Return the abbreviation for the specified AbbrevId. |
getAbbrevIDWidth | Return the number of bits used to encode an abbrev #. |
readRecord | Read the record for AbbrevID into Vals (and optional Blob). |
setBlockInfo | Set the block info to be used by this BitstreamCursor to interpret abbreviated records. |
skipRecord | Read the current record and discard it, returning the code for the record. |
| Name | Description |
|---|---|
MaxChunkSize | Maximum VBR chunk size supported when reading abbreviated fields. |
| Name | Description |
|---|---|
AtEndOfStream | Inherit AtEndOfStream from SimpleBitstreamCursor. |
GetCurrentBitNo | Inherit GetCurrentBitNo from SimpleBitstreamCursor. |
JumpToBit | Inherit JumpToBit from SimpleBitstreamCursor. |
Read | Inherit Read from SimpleBitstreamCursor. |
ReadVBR | Inherit ReadVBR from SimpleBitstreamCursor. |
ReadVBR64 | Inherit ReadVBR64 from SimpleBitstreamCursor. |
SizeInBytes | Inherit SizeInBytes from SimpleBitstreamCursor. |
canSkipToPos | Inherit canSkipToPos from SimpleBitstreamCursor. |
fillCurWord | Inherit fillCurWord from SimpleBitstreamCursor. |
getBitcodeBytes | Inherit getBitcodeBytes from SimpleBitstreamCursor. |
getCurrentByteNo | Inherit getCurrentByteNo from SimpleBitstreamCursor. |
getPointerToByte | Inherit getPointerToByte from SimpleBitstreamCursor. |
skipToEnd | Skip to the end of the bitcode buffer. |