Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(139)

Issues Search
    My Issues | Starred     Open | Closed | All

Unified Diff: third_party/protobuf/ruby/ext/google/protobuf_c/storage.c

Issue 1322483002: Revert https://codereview.chromium.org/1291903002 (protobuf roll). (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 4 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « third_party/protobuf/ruby/ext/google/protobuf_c/repeated_field.c ('k') | third_party/protobuf/ruby/ext/google/protobuf_c/upb.h » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: third_party/protobuf/ruby/ext/google/protobuf_c/storage.c
diff --git a/third_party/protobuf/ruby/ext/google/protobuf_c/storage.c b/third_party/protobuf/ruby/ext/google/protobuf_c/storage.c
deleted file mode 100644
index c4cdc9cc2ab4f9dd9cbc61f604f4832785f51538..0000000000000000000000000000000000000000
--- a/third_party/protobuf/ruby/ext/google/protobuf_c/storage.c
+++ /dev/null
@@ -1,851 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2014 Google Inc. All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#include "protobuf.h"
-
-#include <math.h>
-
-#include <ruby/encoding.h>
-
-// -----------------------------------------------------------------------------
-// Ruby <-> native slot management.
-// -----------------------------------------------------------------------------
-
-#define DEREF(memory, type) *(type*)(memory)
-
-size_t native_slot_size(upb_fieldtype_t type) {
- switch (type) {
- case UPB_TYPE_FLOAT: return 4;
- case UPB_TYPE_DOUBLE: return 8;
- case UPB_TYPE_BOOL: return 1;
- case UPB_TYPE_STRING: return sizeof(VALUE);
- case UPB_TYPE_BYTES: return sizeof(VALUE);
- case UPB_TYPE_MESSAGE: return sizeof(VALUE);
- case UPB_TYPE_ENUM: return 4;
- case UPB_TYPE_INT32: return 4;
- case UPB_TYPE_INT64: return 8;
- case UPB_TYPE_UINT32: return 4;
- case UPB_TYPE_UINT64: return 8;
- default: return 0;
- }
-}
-
-static bool is_ruby_num(VALUE value) {
- return (TYPE(value) == T_FLOAT ||
- TYPE(value) == T_FIXNUM ||
- TYPE(value) == T_BIGNUM);
-}
-
-void native_slot_check_int_range_precision(upb_fieldtype_t type, VALUE val) {
- if (!is_ruby_num(val)) {
- rb_raise(rb_eTypeError, "Expected number type for integral field.");
- }
-
- // NUM2{INT,UINT,LL,ULL} macros do the appropriate range checks on upper
- // bound; we just need to do precision checks (i.e., disallow rounding) and
- // check for < 0 on unsigned types.
- if (TYPE(val) == T_FLOAT) {
- double dbl_val = NUM2DBL(val);
- if (floor(dbl_val) != dbl_val) {
- rb_raise(rb_eRangeError,
- "Non-integral floating point value assigned to integer field.");
- }
- }
- if (type == UPB_TYPE_UINT32 || type == UPB_TYPE_UINT64) {
- if (NUM2DBL(val) < 0) {
- rb_raise(rb_eRangeError,
- "Assigning negative value to unsigned integer field.");
- }
- }
-}
-
-void native_slot_validate_string_encoding(upb_fieldtype_t type, VALUE value) {
- bool bad_encoding = false;
- rb_encoding* string_encoding = rb_enc_from_index(ENCODING_GET(value));
- if (type == UPB_TYPE_STRING) {
- bad_encoding =
- string_encoding != kRubyStringUtf8Encoding &&
- string_encoding != kRubyStringASCIIEncoding;
- } else {
- bad_encoding =
- string_encoding != kRubyString8bitEncoding;
- }
- // Check that encoding is UTF-8 or ASCII (for string fields) or ASCII-8BIT
- // (for bytes fields).
- if (bad_encoding) {
- rb_raise(rb_eTypeError, "Encoding for '%s' fields must be %s (was %s)",
- (type == UPB_TYPE_STRING) ? "string" : "bytes",
- (type == UPB_TYPE_STRING) ? "UTF-8 or ASCII" : "ASCII-8BIT",
- rb_enc_name(string_encoding));
- }
-}
-
-void native_slot_set(upb_fieldtype_t type, VALUE type_class,
- void* memory, VALUE value) {
- native_slot_set_value_and_case(type, type_class, memory, value, NULL, 0);
-}
-
-void native_slot_set_value_and_case(upb_fieldtype_t type, VALUE type_class,
- void* memory, VALUE value,
- uint32_t* case_memory,
- uint32_t case_number) {
- // Note that in order to atomically change the value in memory and the case
- // value (w.r.t. Ruby VM calls), we must set the value at |memory| only after
- // all Ruby VM calls are complete. The case is then set at the bottom of this
- // function.
- switch (type) {
- case UPB_TYPE_FLOAT:
- if (!is_ruby_num(value)) {
- rb_raise(rb_eTypeError, "Expected number type for float field.");
- }
- DEREF(memory, float) = NUM2DBL(value);
- break;
- case UPB_TYPE_DOUBLE:
- if (!is_ruby_num(value)) {
- rb_raise(rb_eTypeError, "Expected number type for double field.");
- }
- DEREF(memory, double) = NUM2DBL(value);
- break;
- case UPB_TYPE_BOOL: {
- int8_t val = -1;
- if (value == Qtrue) {
- val = 1;
- } else if (value == Qfalse) {
- val = 0;
- } else {
- rb_raise(rb_eTypeError, "Invalid argument for boolean field.");
- }
- DEREF(memory, int8_t) = val;
- break;
- }
- case UPB_TYPE_STRING:
- case UPB_TYPE_BYTES: {
- if (CLASS_OF(value) != rb_cString) {
- rb_raise(rb_eTypeError, "Invalid argument for string field.");
- }
- native_slot_validate_string_encoding(type, value);
- DEREF(memory, VALUE) = value;
- break;
- }
- case UPB_TYPE_MESSAGE: {
- if (CLASS_OF(value) == CLASS_OF(Qnil)) {
- value = Qnil;
- } else if (CLASS_OF(value) != type_class) {
- rb_raise(rb_eTypeError,
- "Invalid type %s to assign to submessage field.",
- rb_class2name(CLASS_OF(value)));
- }
- DEREF(memory, VALUE) = value;
- break;
- }
- case UPB_TYPE_ENUM: {
- if (!is_ruby_num(value) && TYPE(value) != T_SYMBOL) {
- rb_raise(rb_eTypeError,
- "Expected number or symbol type for enum field.");
- }
- int32_t int_val = 0;
- if (TYPE(value) == T_SYMBOL) {
- // Ensure that the given symbol exists in the enum module.
- VALUE lookup = rb_funcall(type_class, rb_intern("resolve"), 1, value);
- if (lookup == Qnil) {
- rb_raise(rb_eRangeError, "Unknown symbol value for enum field.");
- } else {
- int_val = NUM2INT(lookup);
- }
- } else {
- native_slot_check_int_range_precision(UPB_TYPE_INT32, value);
- int_val = NUM2INT(value);
- }
- DEREF(memory, int32_t) = int_val;
- break;
- }
- case UPB_TYPE_INT32:
- case UPB_TYPE_INT64:
- case UPB_TYPE_UINT32:
- case UPB_TYPE_UINT64:
- native_slot_check_int_range_precision(type, value);
- switch (type) {
- case UPB_TYPE_INT32:
- DEREF(memory, int32_t) = NUM2INT(value);
- break;
- case UPB_TYPE_INT64:
- DEREF(memory, int64_t) = NUM2LL(value);
- break;
- case UPB_TYPE_UINT32:
- DEREF(memory, uint32_t) = NUM2UINT(value);
- break;
- case UPB_TYPE_UINT64:
- DEREF(memory, uint64_t) = NUM2ULL(value);
- break;
- default:
- break;
- }
- break;
- default:
- break;
- }
-
- if (case_memory != NULL) {
- *case_memory = case_number;
- }
-}
-
-VALUE native_slot_get(upb_fieldtype_t type,
- VALUE type_class,
- const void* memory) {
- switch (type) {
- case UPB_TYPE_FLOAT:
- return DBL2NUM(DEREF(memory, float));
- case UPB_TYPE_DOUBLE:
- return DBL2NUM(DEREF(memory, double));
- case UPB_TYPE_BOOL:
- return DEREF(memory, int8_t) ? Qtrue : Qfalse;
- case UPB_TYPE_STRING:
- case UPB_TYPE_BYTES:
- case UPB_TYPE_MESSAGE:
- return DEREF(memory, VALUE);
- case UPB_TYPE_ENUM: {
- int32_t val = DEREF(memory, int32_t);
- VALUE symbol = enum_lookup(type_class, INT2NUM(val));
- if (symbol == Qnil) {
- return INT2NUM(val);
- } else {
- return symbol;
- }
- }
- case UPB_TYPE_INT32:
- return INT2NUM(DEREF(memory, int32_t));
- case UPB_TYPE_INT64:
- return LL2NUM(DEREF(memory, int64_t));
- case UPB_TYPE_UINT32:
- return UINT2NUM(DEREF(memory, uint32_t));
- case UPB_TYPE_UINT64:
- return ULL2NUM(DEREF(memory, uint64_t));
- default:
- return Qnil;
- }
-}
-
-void native_slot_init(upb_fieldtype_t type, void* memory) {
- switch (type) {
- case UPB_TYPE_FLOAT:
- DEREF(memory, float) = 0.0;
- break;
- case UPB_TYPE_DOUBLE:
- DEREF(memory, double) = 0.0;
- break;
- case UPB_TYPE_BOOL:
- DEREF(memory, int8_t) = 0;
- break;
- case UPB_TYPE_STRING:
- case UPB_TYPE_BYTES:
- DEREF(memory, VALUE) = rb_str_new2("");
- rb_enc_associate(DEREF(memory, VALUE), (type == UPB_TYPE_BYTES) ?
- kRubyString8bitEncoding : kRubyStringUtf8Encoding);
- break;
- case UPB_TYPE_MESSAGE:
- DEREF(memory, VALUE) = Qnil;
- break;
- case UPB_TYPE_ENUM:
- case UPB_TYPE_INT32:
- DEREF(memory, int32_t) = 0;
- break;
- case UPB_TYPE_INT64:
- DEREF(memory, int64_t) = 0;
- break;
- case UPB_TYPE_UINT32:
- DEREF(memory, uint32_t) = 0;
- break;
- case UPB_TYPE_UINT64:
- DEREF(memory, uint64_t) = 0;
- break;
- default:
- break;
- }
-}
-
-void native_slot_mark(upb_fieldtype_t type, void* memory) {
- switch (type) {
- case UPB_TYPE_STRING:
- case UPB_TYPE_BYTES:
- case UPB_TYPE_MESSAGE:
- rb_gc_mark(DEREF(memory, VALUE));
- break;
- default:
- break;
- }
-}
-
-void native_slot_dup(upb_fieldtype_t type, void* to, void* from) {
- memcpy(to, from, native_slot_size(type));
-}
-
-void native_slot_deep_copy(upb_fieldtype_t type, void* to, void* from) {
- switch (type) {
- case UPB_TYPE_STRING:
- case UPB_TYPE_BYTES: {
- VALUE from_val = DEREF(from, VALUE);
- DEREF(to, VALUE) = (from_val != Qnil) ?
- rb_funcall(from_val, rb_intern("dup"), 0) : Qnil;
- break;
- }
- case UPB_TYPE_MESSAGE: {
- VALUE from_val = DEREF(from, VALUE);
- DEREF(to, VALUE) = (from_val != Qnil) ?
- Message_deep_copy(from_val) : Qnil;
- break;
- }
- default:
- memcpy(to, from, native_slot_size(type));
- }
-}
-
-bool native_slot_eq(upb_fieldtype_t type, void* mem1, void* mem2) {
- switch (type) {
- case UPB_TYPE_STRING:
- case UPB_TYPE_BYTES:
- case UPB_TYPE_MESSAGE: {
- VALUE val1 = DEREF(mem1, VALUE);
- VALUE val2 = DEREF(mem2, VALUE);
- VALUE ret = rb_funcall(val1, rb_intern("=="), 1, val2);
- return ret == Qtrue;
- }
- default:
- return !memcmp(mem1, mem2, native_slot_size(type));
- }
-}
-
-// -----------------------------------------------------------------------------
-// Map field utilities.
-// -----------------------------------------------------------------------------
-
-bool is_map_field(const upb_fielddef* field) {
- if (upb_fielddef_label(field) != UPB_LABEL_REPEATED ||
- upb_fielddef_type(field) != UPB_TYPE_MESSAGE) {
- return false;
- }
- const upb_msgdef* subdef = upb_fielddef_msgsubdef(field);
- return upb_msgdef_mapentry(subdef);
-}
-
-const upb_fielddef* map_field_key(const upb_fielddef* field) {
- assert(is_map_field(field));
- const upb_msgdef* subdef = upb_fielddef_msgsubdef(field);
- return map_entry_key(subdef);
-}
-
-const upb_fielddef* map_field_value(const upb_fielddef* field) {
- assert(is_map_field(field));
- const upb_msgdef* subdef = upb_fielddef_msgsubdef(field);
- return map_entry_value(subdef);
-}
-
-const upb_fielddef* map_entry_key(const upb_msgdef* msgdef) {
- const upb_fielddef* key_field = upb_msgdef_itof(msgdef, MAP_KEY_FIELD);
- assert(key_field != NULL);
- return key_field;
-}
-
-const upb_fielddef* map_entry_value(const upb_msgdef* msgdef) {
- const upb_fielddef* value_field = upb_msgdef_itof(msgdef, MAP_VALUE_FIELD);
- assert(value_field != NULL);
- return value_field;
-}
-
-// -----------------------------------------------------------------------------
-// Memory layout management.
-// -----------------------------------------------------------------------------
-
-static size_t align_up_to(size_t offset, size_t granularity) {
- // Granularity must be a power of two.
- return (offset + granularity - 1) & ~(granularity - 1);
-}
-
-MessageLayout* create_layout(const upb_msgdef* msgdef) {
- MessageLayout* layout = ALLOC(MessageLayout);
- int nfields = upb_msgdef_numfields(msgdef);
- layout->fields = ALLOC_N(MessageField, nfields);
-
- upb_msg_field_iter it;
- size_t off = 0;
- for (upb_msg_field_begin(&it, msgdef);
- !upb_msg_field_done(&it);
- upb_msg_field_next(&it)) {
- const upb_fielddef* field = upb_msg_iter_field(&it);
-
- if (upb_fielddef_containingoneof(field)) {
- // Oneofs are handled separately below.
- continue;
- }
-
- // Allocate |field_size| bytes for this field in the layout.
- size_t field_size = 0;
- if (upb_fielddef_label(field) == UPB_LABEL_REPEATED) {
- field_size = sizeof(VALUE);
- } else {
- field_size = native_slot_size(upb_fielddef_type(field));
- }
- // Align current offset up to |size| granularity.
- off = align_up_to(off, field_size);
- layout->fields[upb_fielddef_index(field)].offset = off;
- layout->fields[upb_fielddef_index(field)].case_offset =
- MESSAGE_FIELD_NO_CASE;
- off += field_size;
- }
-
- // Handle oneofs now -- we iterate over oneofs specifically and allocate only
- // one slot per oneof.
- //
- // We assign all value slots first, then pack the 'case' fields at the end,
- // since in the common case (modern 64-bit platform) these are 8 bytes and 4
- // bytes respectively and we want to avoid alignment overhead.
- //
- // Note that we reserve 4 bytes (a uint32) per 'case' slot because the value
- // space for oneof cases is conceptually as wide as field tag numbers. In
- // practice, it's unlikely that a oneof would have more than e.g. 256 or 64K
- // members (8 or 16 bits respectively), so conceivably we could assign
- // consecutive case numbers and then pick a smaller oneof case slot size, but
- // the complexity to implement this indirection is probably not worthwhile.
- upb_msg_oneof_iter oit;
- for (upb_msg_oneof_begin(&oit, msgdef);
- !upb_msg_oneof_done(&oit);
- upb_msg_oneof_next(&oit)) {
- const upb_oneofdef* oneof = upb_msg_iter_oneof(&oit);
-
- // Always allocate NATIVE_SLOT_MAX_SIZE bytes, but share the slot between
- // all fields.
- size_t field_size = NATIVE_SLOT_MAX_SIZE;
- // Align the offset.
- off = align_up_to(off, field_size);
- // Assign all fields in the oneof this same offset.
- upb_oneof_iter fit;
- for (upb_oneof_begin(&fit, oneof);
- !upb_oneof_done(&fit);
- upb_oneof_next(&fit)) {
- const upb_fielddef* field = upb_oneof_iter_field(&fit);
- layout->fields[upb_fielddef_index(field)].offset = off;
- }
- off += field_size;
- }
-
- // Now the case fields.
- for (upb_msg_oneof_begin(&oit, msgdef);
- !upb_msg_oneof_done(&oit);
- upb_msg_oneof_next(&oit)) {
- const upb_oneofdef* oneof = upb_msg_iter_oneof(&oit);
-
- size_t field_size = sizeof(uint32_t);
- // Align the offset.
- off = (off + field_size - 1) & ~(field_size - 1);
- // Assign all fields in the oneof this same offset.
- upb_oneof_iter fit;
- for (upb_oneof_begin(&fit, oneof);
- !upb_oneof_done(&fit);
- upb_oneof_next(&fit)) {
- const upb_fielddef* field = upb_oneof_iter_field(&fit);
- layout->fields[upb_fielddef_index(field)].case_offset = off;
- }
- off += field_size;
- }
-
- layout->size = off;
-
- layout->msgdef = msgdef;
- upb_msgdef_ref(layout->msgdef, &layout->msgdef);
-
- return layout;
-}
-
-void free_layout(MessageLayout* layout) {
- xfree(layout->fields);
- upb_msgdef_unref(layout->msgdef, &layout->msgdef);
- xfree(layout);
-}
-
-VALUE field_type_class(const upb_fielddef* field) {
- VALUE type_class = Qnil;
- if (upb_fielddef_type(field) == UPB_TYPE_MESSAGE) {
- VALUE submsgdesc =
- get_def_obj(upb_fielddef_subdef(field));
- type_class = Descriptor_msgclass(submsgdesc);
- } else if (upb_fielddef_type(field) == UPB_TYPE_ENUM) {
- VALUE subenumdesc =
- get_def_obj(upb_fielddef_subdef(field));
- type_class = EnumDescriptor_enummodule(subenumdesc);
- }
- return type_class;
-}
-
-static void* slot_memory(MessageLayout* layout,
- const void* storage,
- const upb_fielddef* field) {
- return ((uint8_t *)storage) +
- layout->fields[upb_fielddef_index(field)].offset;
-}
-
-static uint32_t* slot_oneof_case(MessageLayout* layout,
- const void* storage,
- const upb_fielddef* field) {
- return (uint32_t *)(((uint8_t *)storage) +
- layout->fields[upb_fielddef_index(field)].case_offset);
-}
-
-
-VALUE layout_get(MessageLayout* layout,
- const void* storage,
- const upb_fielddef* field) {
- void* memory = slot_memory(layout, storage, field);
- uint32_t* oneof_case = slot_oneof_case(layout, storage, field);
-
- if (upb_fielddef_containingoneof(field)) {
- if (*oneof_case != upb_fielddef_number(field)) {
- return Qnil;
- }
- return native_slot_get(upb_fielddef_type(field),
- field_type_class(field),
- memory);
- } else if (upb_fielddef_label(field) == UPB_LABEL_REPEATED) {
- return *((VALUE *)memory);
- } else {
- return native_slot_get(upb_fielddef_type(field),
- field_type_class(field),
- memory);
- }
-}
-
-static void check_repeated_field_type(VALUE val, const upb_fielddef* field) {
- assert(upb_fielddef_label(field) == UPB_LABEL_REPEATED);
-
- if (!RB_TYPE_P(val, T_DATA) || !RTYPEDDATA_P(val) ||
- RTYPEDDATA_TYPE(val) != &RepeatedField_type) {
- rb_raise(rb_eTypeError, "Expected repeated field array");
- }
-
- RepeatedField* self = ruby_to_RepeatedField(val);
- if (self->field_type != upb_fielddef_type(field)) {
- rb_raise(rb_eTypeError, "Repeated field array has wrong element type");
- }
-
- if (self->field_type == UPB_TYPE_MESSAGE ||
- self->field_type == UPB_TYPE_ENUM) {
- if (self->field_type_class !=
- get_def_obj(upb_fielddef_subdef(field))) {
- rb_raise(rb_eTypeError,
- "Repeated field array has wrong message/enum class");
- }
- }
-}
-
-static void check_map_field_type(VALUE val, const upb_fielddef* field) {
- assert(is_map_field(field));
- const upb_fielddef* key_field = map_field_key(field);
- const upb_fielddef* value_field = map_field_value(field);
-
- if (!RB_TYPE_P(val, T_DATA) || !RTYPEDDATA_P(val) ||
- RTYPEDDATA_TYPE(val) != &Map_type) {
- rb_raise(rb_eTypeError, "Expected Map instance");
- }
-
- Map* self = ruby_to_Map(val);
- if (self->key_type != upb_fielddef_type(key_field)) {
- rb_raise(rb_eTypeError, "Map key type does not match field's key type");
- }
- if (self->value_type != upb_fielddef_type(value_field)) {
- rb_raise(rb_eTypeError, "Map value type does not match field's value type");
- }
- if (upb_fielddef_type(value_field) == UPB_TYPE_MESSAGE ||
- upb_fielddef_type(value_field) == UPB_TYPE_ENUM) {
- if (self->value_type_class !=
- get_def_obj(upb_fielddef_subdef(value_field))) {
- rb_raise(rb_eTypeError,
- "Map value type has wrong message/enum class");
- }
- }
-}
-
-
-void layout_set(MessageLayout* layout,
- void* storage,
- const upb_fielddef* field,
- VALUE val) {
- void* memory = slot_memory(layout, storage, field);
- uint32_t* oneof_case = slot_oneof_case(layout, storage, field);
-
- if (upb_fielddef_containingoneof(field)) {
- if (val == Qnil) {
- // Assigning nil to a oneof field clears the oneof completely.
- *oneof_case = ONEOF_CASE_NONE;
- memset(memory, 0, NATIVE_SLOT_MAX_SIZE);
- } else {
- // The transition between field types for a single oneof (union) slot is
- // somewhat complex because we need to ensure that a GC triggered at any
- // point by a call into the Ruby VM sees a valid state for this field and
- // does not either go off into the weeds (following what it thinks is a
- // VALUE but is actually a different field type) or miss an object (seeing
- // what it thinks is a primitive field but is actually a VALUE for the new
- // field type).
- //
- // In order for the transition to be safe, the oneof case slot must be in
- // sync with the value slot whenever the Ruby VM has been called. Thus, we
- // use native_slot_set_value_and_case(), which ensures that both the value
- // and case number are altered atomically (w.r.t. the Ruby VM).
- native_slot_set_value_and_case(
- upb_fielddef_type(field), field_type_class(field),
- memory, val,
- oneof_case, upb_fielddef_number(field));
- }
- } else if (is_map_field(field)) {
- check_map_field_type(val, field);
- DEREF(memory, VALUE) = val;
- } else if (upb_fielddef_label(field) == UPB_LABEL_REPEATED) {
- check_repeated_field_type(val, field);
- DEREF(memory, VALUE) = val;
- } else {
- native_slot_set(upb_fielddef_type(field), field_type_class(field),
- memory, val);
- }
-}
-
-void layout_init(MessageLayout* layout,
- void* storage) {
- upb_msg_field_iter it;
- for (upb_msg_field_begin(&it, layout->msgdef);
- !upb_msg_field_done(&it);
- upb_msg_field_next(&it)) {
- const upb_fielddef* field = upb_msg_iter_field(&it);
- void* memory = slot_memory(layout, storage, field);
- uint32_t* oneof_case = slot_oneof_case(layout, storage, field);
-
- if (upb_fielddef_containingoneof(field)) {
- memset(memory, 0, NATIVE_SLOT_MAX_SIZE);
- *oneof_case = ONEOF_CASE_NONE;
- } else if (is_map_field(field)) {
- VALUE map = Qnil;
-
- const upb_fielddef* key_field = map_field_key(field);
- const upb_fielddef* value_field = map_field_value(field);
- VALUE type_class = field_type_class(value_field);
-
- if (type_class != Qnil) {
- VALUE args[3] = {
- fieldtype_to_ruby(upb_fielddef_type(key_field)),
- fieldtype_to_ruby(upb_fielddef_type(value_field)),
- type_class,
- };
- map = rb_class_new_instance(3, args, cMap);
- } else {
- VALUE args[2] = {
- fieldtype_to_ruby(upb_fielddef_type(key_field)),
- fieldtype_to_ruby(upb_fielddef_type(value_field)),
- };
- map = rb_class_new_instance(2, args, cMap);
- }
-
- DEREF(memory, VALUE) = map;
- } else if (upb_fielddef_label(field) == UPB_LABEL_REPEATED) {
- VALUE ary = Qnil;
-
- VALUE type_class = field_type_class(field);
-
- if (type_class != Qnil) {
- VALUE args[2] = {
- fieldtype_to_ruby(upb_fielddef_type(field)),
- type_class,
- };
- ary = rb_class_new_instance(2, args, cRepeatedField);
- } else {
- VALUE args[1] = { fieldtype_to_ruby(upb_fielddef_type(field)) };
- ary = rb_class_new_instance(1, args, cRepeatedField);
- }
-
- DEREF(memory, VALUE) = ary;
- } else {
- native_slot_init(upb_fielddef_type(field), memory);
- }
- }
-}
-
-void layout_mark(MessageLayout* layout, void* storage) {
- upb_msg_field_iter it;
- for (upb_msg_field_begin(&it, layout->msgdef);
- !upb_msg_field_done(&it);
- upb_msg_field_next(&it)) {
- const upb_fielddef* field = upb_msg_iter_field(&it);
- void* memory = slot_memory(layout, storage, field);
- uint32_t* oneof_case = slot_oneof_case(layout, storage, field);
-
- if (upb_fielddef_containingoneof(field)) {
- if (*oneof_case == upb_fielddef_number(field)) {
- native_slot_mark(upb_fielddef_type(field), memory);
- }
- } else if (upb_fielddef_label(field) == UPB_LABEL_REPEATED) {
- rb_gc_mark(DEREF(memory, VALUE));
- } else {
- native_slot_mark(upb_fielddef_type(field), memory);
- }
- }
-}
-
-void layout_dup(MessageLayout* layout, void* to, void* from) {
- upb_msg_field_iter it;
- for (upb_msg_field_begin(&it, layout->msgdef);
- !upb_msg_field_done(&it);
- upb_msg_field_next(&it)) {
- const upb_fielddef* field = upb_msg_iter_field(&it);
-
- void* to_memory = slot_memory(layout, to, field);
- uint32_t* to_oneof_case = slot_oneof_case(layout, to, field);
- void* from_memory = slot_memory(layout, from, field);
- uint32_t* from_oneof_case = slot_oneof_case(layout, from, field);
-
- if (upb_fielddef_containingoneof(field)) {
- if (*from_oneof_case == upb_fielddef_number(field)) {
- *to_oneof_case = *from_oneof_case;
- native_slot_dup(upb_fielddef_type(field), to_memory, from_memory);
- }
- } else if (is_map_field(field)) {
- DEREF(to_memory, VALUE) = Map_dup(DEREF(from_memory, VALUE));
- } else if (upb_fielddef_label(field) == UPB_LABEL_REPEATED) {
- DEREF(to_memory, VALUE) = RepeatedField_dup(DEREF(from_memory, VALUE));
- } else {
- native_slot_dup(upb_fielddef_type(field), to_memory, from_memory);
- }
- }
-}
-
-void layout_deep_copy(MessageLayout* layout, void* to, void* from) {
- upb_msg_field_iter it;
- for (upb_msg_field_begin(&it, layout->msgdef);
- !upb_msg_field_done(&it);
- upb_msg_field_next(&it)) {
- const upb_fielddef* field = upb_msg_iter_field(&it);
-
- void* to_memory = slot_memory(layout, to, field);
- uint32_t* to_oneof_case = slot_oneof_case(layout, to, field);
- void* from_memory = slot_memory(layout, from, field);
- uint32_t* from_oneof_case = slot_oneof_case(layout, from, field);
-
- if (upb_fielddef_containingoneof(field)) {
- if (*from_oneof_case == upb_fielddef_number(field)) {
- *to_oneof_case = *from_oneof_case;
- native_slot_deep_copy(upb_fielddef_type(field), to_memory, from_memory);
- }
- } else if (is_map_field(field)) {
- DEREF(to_memory, VALUE) =
- Map_deep_copy(DEREF(from_memory, VALUE));
- } else if (upb_fielddef_label(field) == UPB_LABEL_REPEATED) {
- DEREF(to_memory, VALUE) =
- RepeatedField_deep_copy(DEREF(from_memory, VALUE));
- } else {
- native_slot_deep_copy(upb_fielddef_type(field), to_memory, from_memory);
- }
- }
-}
-
-VALUE layout_eq(MessageLayout* layout, void* msg1, void* msg2) {
- upb_msg_field_iter it;
- for (upb_msg_field_begin(&it, layout->msgdef);
- !upb_msg_field_done(&it);
- upb_msg_field_next(&it)) {
- const upb_fielddef* field = upb_msg_iter_field(&it);
-
- void* msg1_memory = slot_memory(layout, msg1, field);
- uint32_t* msg1_oneof_case = slot_oneof_case(layout, msg1, field);
- void* msg2_memory = slot_memory(layout, msg2, field);
- uint32_t* msg2_oneof_case = slot_oneof_case(layout, msg2, field);
-
- if (upb_fielddef_containingoneof(field)) {
- if (*msg1_oneof_case != *msg2_oneof_case ||
- (*msg1_oneof_case == upb_fielddef_number(field) &&
- !native_slot_eq(upb_fielddef_type(field),
- msg1_memory,
- msg2_memory))) {
- return Qfalse;
- }
- } else if (is_map_field(field)) {
- if (!Map_eq(DEREF(msg1_memory, VALUE),
- DEREF(msg2_memory, VALUE))) {
- return Qfalse;
- }
- } else if (upb_fielddef_label(field) == UPB_LABEL_REPEATED) {
- if (!RepeatedField_eq(DEREF(msg1_memory, VALUE),
- DEREF(msg2_memory, VALUE))) {
- return Qfalse;
- }
- } else {
- if (!native_slot_eq(upb_fielddef_type(field),
- msg1_memory, msg2_memory)) {
- return Qfalse;
- }
- }
- }
- return Qtrue;
-}
-
-VALUE layout_hash(MessageLayout* layout, void* storage) {
- upb_msg_field_iter it;
- st_index_t h = rb_hash_start(0);
- VALUE hash_sym = rb_intern("hash");
- for (upb_msg_field_begin(&it, layout->msgdef);
- !upb_msg_field_done(&it);
- upb_msg_field_next(&it)) {
- const upb_fielddef* field = upb_msg_iter_field(&it);
- VALUE field_val = layout_get(layout, storage, field);
- h = rb_hash_uint(h, NUM2LONG(rb_funcall(field_val, hash_sym, 0)));
- }
- h = rb_hash_end(h);
-
- return INT2FIX(h);
-}
-
-VALUE layout_inspect(MessageLayout* layout, void* storage) {
- VALUE str = rb_str_new2("");
-
- upb_msg_field_iter it;
- bool first = true;
- for (upb_msg_field_begin(&it, layout->msgdef);
- !upb_msg_field_done(&it);
- upb_msg_field_next(&it)) {
- const upb_fielddef* field = upb_msg_iter_field(&it);
- VALUE field_val = layout_get(layout, storage, field);
-
- if (!first) {
- str = rb_str_cat2(str, ", ");
- } else {
- first = false;
- }
- str = rb_str_cat2(str, upb_fielddef_name(field));
- str = rb_str_cat2(str, ": ");
-
- str = rb_str_append(str, rb_funcall(field_val, rb_intern("inspect"), 0));
- }
-
- return str;
-}
« no previous file with comments | « third_party/protobuf/ruby/ext/google/protobuf_c/repeated_field.c ('k') | third_party/protobuf/ruby/ext/google/protobuf_c/upb.h » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698