Josh Haberman
6 years ago
parent
8e737d4f9a
commit
22ad7121c2
13 changed files with 155 additions and 217 deletions
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/*
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** This file contains definitions of structs that should be considered private |
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** and NOT stable across versions of upb. |
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** |
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** The only reason they are declared here and not in .c files is to allow upb |
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** and the application (if desired) to embed statically-initialized instances |
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** of structures like defs. |
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** |
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** If you include this file, all guarantees of ABI compatibility go out the |
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** window! Any code that includes this file needs to recompile against the |
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** exact same version of upb that they are linking against. |
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** |
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** You also need to recompile if you change the value of the UPB_DEBUG_REFS |
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** flag. |
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*/ |
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#include "upb/def.h" |
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#ifndef UPB_STATICINIT_H_ |
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#define UPB_STATICINIT_H_ |
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#ifdef __cplusplus |
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/* Because of how we do our typedefs, this header can't be included from C++. */ |
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#error This file cannot be included from C++ |
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#endif |
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/* upb_refcounted *************************************************************/ |
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/* upb_def ********************************************************************/ |
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struct upb_def { |
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upb_refcounted base; |
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const char *fullname; |
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const upb_filedef* file; |
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char type; /* A upb_deftype_t (char to save space) */ |
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/* Used as a flag during the def's mutable stage. Must be false unless
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* it is currently being used by a function on the stack. This allows |
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* us to easily determine which defs were passed into the function's |
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* current invocation. */ |
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bool came_from_user; |
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}; |
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#define UPB_DEF_INIT(name, type, vtbl, refs, ref2s) \ |
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{ UPB_REFCOUNT_INIT(vtbl, refs, ref2s), name, NULL, type, false } |
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/* upb_fielddef ***************************************************************/ |
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struct upb_fielddef { |
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upb_def base; |
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union { |
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int64_t sint; |
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uint64_t uint; |
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double dbl; |
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float flt; |
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void *bytes; |
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} defaultval; |
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union { |
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const upb_msgdef *def; /* If !msg_is_symbolic. */ |
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char *name; /* If msg_is_symbolic. */ |
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} msg; |
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union { |
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const upb_def *def; /* If !subdef_is_symbolic. */ |
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char *name; /* If subdef_is_symbolic. */ |
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} sub; /* The msgdef or enumdef for this field, if upb_hassubdef(f). */ |
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bool subdef_is_symbolic; |
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bool msg_is_symbolic; |
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const upb_oneofdef *oneof; |
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bool default_is_string; |
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bool type_is_set_; /* False until type is explicitly set. */ |
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bool is_extension_; |
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bool lazy_; |
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bool packed_; |
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upb_intfmt_t intfmt; |
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bool tagdelim; |
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upb_fieldtype_t type_; |
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upb_label_t label_; |
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uint32_t number_; |
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uint32_t selector_base; /* Used to index into a upb::Handlers table. */ |
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uint32_t index_; |
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}; |
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extern const struct upb_refcounted_vtbl upb_fielddef_vtbl; |
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#define UPB_FIELDDEF_INIT(label, type, intfmt, tagdelim, is_extension, lazy, \ |
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packed, name, num, msgdef, subdef, selector_base, \
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index, defaultval, refs, ref2s) \
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{ \
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UPB_DEF_INIT(name, UPB_DEF_FIELD, &upb_fielddef_vtbl, refs, ref2s), \
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defaultval, {msgdef}, {subdef}, NULL, false, false, \
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type == UPB_TYPE_STRING || type == UPB_TYPE_BYTES, true, is_extension, \
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lazy, packed, intfmt, tagdelim, type, label, num, selector_base, index \
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} |
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/* upb_msgdef *****************************************************************/ |
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struct upb_msgdef { |
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upb_def base; |
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size_t selector_count; |
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uint32_t submsg_field_count; |
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/* Tables for looking up fields by number and name. */ |
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upb_inttable itof; /* int to field */ |
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upb_strtable ntof; /* name to field/oneof */ |
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/* Is this a map-entry message? */ |
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bool map_entry; |
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/* Whether this message has proto2 or proto3 semantics. */ |
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upb_syntax_t syntax; |
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/* Type of well known type message. UPB_WELLKNOWN_UNSPECIFIED for
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* non-well-known message. */ |
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upb_wellknowntype_t well_known_type; |
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/* TODO(haberman): proper extension ranges (there can be multiple). */ |
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}; |
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extern const struct upb_refcounted_vtbl upb_msgdef_vtbl; |
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/* TODO: also support static initialization of the oneofs table. This will be
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* needed if we compile in descriptors that contain oneofs. */ |
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#define UPB_MSGDEF_INIT(name, selector_count, submsg_field_count, itof, ntof, \ |
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map_entry, syntax, well_known_type, refs, ref2s) \
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{ \
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UPB_DEF_INIT(name, UPB_DEF_MSG, &upb_fielddef_vtbl, refs, ref2s), \
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selector_count, submsg_field_count, itof, ntof, map_entry, syntax, \
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well_known_type \
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} |
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/* upb_enumdef ****************************************************************/ |
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struct upb_enumdef { |
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upb_def base; |
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upb_strtable ntoi; |
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upb_inttable iton; |
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int32_t defaultval; |
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}; |
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extern const struct upb_refcounted_vtbl upb_enumdef_vtbl; |
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#define UPB_ENUMDEF_INIT(name, ntoi, iton, defaultval, refs, ref2s) \ |
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{ UPB_DEF_INIT(name, UPB_DEF_ENUM, &upb_enumdef_vtbl, refs, ref2s), ntoi, \
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iton, defaultval } |
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/* upb_oneofdef ***************************************************************/ |
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struct upb_oneofdef { |
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upb_refcounted base; |
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uint32_t index; /* Index within oneofs. */ |
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const char *name; |
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upb_strtable ntof; |
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upb_inttable itof; |
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const upb_msgdef *parent; |
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}; |
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extern const struct upb_refcounted_vtbl upb_oneofdef_vtbl; |
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#define UPB_ONEOFDEF_INIT(name, ntof, itof, refs, ref2s) \ |
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{ UPB_REFCOUNT_INIT(&upb_oneofdef_vtbl, refs, ref2s), 0, name, ntof, itof } |
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/* upb_symtab *****************************************************************/ |
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struct upb_symtab { |
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upb_refcounted base; |
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upb_strtable symtab; |
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}; |
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struct upb_filedef { |
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upb_refcounted base; |
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const char *name; |
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const char *package; |
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const char *phpprefix; |
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const char *phpnamespace; |
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upb_syntax_t syntax; |
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upb_inttable defs; |
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upb_inttable deps; |
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}; |
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extern const struct upb_refcounted_vtbl upb_filedef_vtbl; |
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#endif /* UPB_STATICINIT_H_ */ |
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