a tree node. The arguments are: output_block where to write the
node, the tree node to write and a boolean flag that should be true
if the caller wants to write a reference to the tree, instead of the
- tree itself. The referencing mechanism is up to each streamer to
- implement. */
- void (*write_tree) (struct output_block *, tree, bool);
+ tree itself. The second boolean parameter specifies this for
+ the tree itself, the first for all siblings that are streamed.
+ The referencing mechanism is up to each streamer to implement. */
+ void (*write_tree) (struct output_block *, tree, bool, bool);
/* [REQ] Called by every tree streaming routine that needs to read
a tree node. It takes two arguments: an lto_input_block pointing
and descriptors needed by the unpickling routines. It returns the
tree instantiated from the stream. */
tree (*read_tree) (struct lto_input_block *, struct data_in *);
+
+ /* [OPT] Called by lto_input_location to retrieve the source location of the
+ tree currently being read. If this hook returns NULL, lto_input_location
+ defaults to calling lto_input_location_bitpack. */
+ location_t (*input_location) (struct lto_input_block *, struct data_in *);
+
+ /* [OPT] Called by lto_output_location to write the source_location of the
+ tree currently being written. If this hook returns NULL,
+ lto_output_location defaults to calling lto_output_location_bitpack. */
+ void (*output_location) (struct output_block *, location_t);
};
#define stream_write_tree(OB, EXPR, REF_P) \
- streamer_hooks.write_tree(OB, EXPR, REF_P)
+ streamer_hooks.write_tree(OB, EXPR, REF_P, REF_P)
+
+#define stream_write_tree_shallow_non_ref(OB, EXPR, REF_P) \
+ streamer_hooks.write_tree(OB, EXPR, REF_P, false)
#define stream_read_tree(IB, DATA_IN) \
streamer_hooks.read_tree(IB, DATA_IN)