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-rw-r--r--layout/style/ServoBindings.h132
1 files changed, 132 insertions, 0 deletions
diff --git a/layout/style/ServoBindings.h b/layout/style/ServoBindings.h
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+++ b/layout/style/ServoBindings.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* FFI functions for Gecko to call into Servo */
+
+#ifndef mozilla_ServoBindings_h
+#define mozilla_ServoBindings_h
+
+#include "mozilla/ServoStyleConsts.h"
+
+// These functions are defined via macros in Rust, so cbindgen doesn't see them.
+
+namespace mozilla {
+
+// The clang we use on windows complains about returning StyleStrong<> and
+// StyleOwned<>, since the template parameters are incomplete.
+//
+// But they only contain pointers so it is ok. Also, this warning hilariously
+// doesn't exist in GCC.
+//
+// A solution for this is to explicitly instantiate the template, but duplicate
+// instantiations are an error.
+//
+// https://github.com/eqrion/cbindgen/issues/402 tracks an improvement to
+// cbindgen that would allow it to autogenerate the template instantiations on
+// its own.
+#pragma GCC diagnostic push
+#ifdef __clang__
+# pragma GCC diagnostic ignored "-Wreturn-type-c-linkage"
+#endif
+
+extern "C" {
+
+#define BASIC_RULE_FUNCS_WITHOUT_GETTER_WITH_PREFIX(type_, prefix_) \
+ void Servo_##type_##_Debug(const mozilla::Style##prefix_##type_*, \
+ nsACString* result); \
+ void Servo_##type_##_GetCssText(const mozilla::Style##prefix_##type_*, \
+ nsACString* result);
+
+#define BASIC_RULE_FUNCS_WITHOUT_GETTER_LOCKED(type_) \
+ BASIC_RULE_FUNCS_WITHOUT_GETTER_WITH_PREFIX(type_, Locked)
+#define BASIC_RULE_FUNCS_WITHOUT_GETTER_UNLOCKED(type_) \
+ BASIC_RULE_FUNCS_WITHOUT_GETTER_WITH_PREFIX(type_, )
+
+#define BASIC_RULE_FUNCS_WITH_PREFIX(type_, prefix_) \
+ StyleStrong<mozilla::Style##prefix_##type_##Rule> \
+ Servo_CssRules_Get##type_##RuleAt(const StyleLockedCssRules* rules, \
+ uint32_t index, uint32_t* line, \
+ uint32_t* column); \
+ void Servo_StyleSet_##type_##RuleChanged( \
+ const StylePerDocumentStyleData*, const Style##prefix_##type_##Rule*, \
+ const StyleDomStyleSheet*, StyleRuleChangeKind); \
+ BASIC_RULE_FUNCS_WITHOUT_GETTER_WITH_PREFIX(type_##Rule, prefix_)
+
+#define BASIC_RULE_FUNCS_LOCKED(type_) \
+ BASIC_RULE_FUNCS_WITH_PREFIX(type_, Locked)
+
+#define BASIC_RULE_FUNCS_UNLOCKED(type_) BASIC_RULE_FUNCS_WITH_PREFIX(type_, )
+
+#define GROUP_RULE_FUNCS_WITH_PREFIX(type_, prefix_) \
+ BASIC_RULE_FUNCS_WITH_PREFIX(type_, prefix_) \
+ StyleStrong<mozilla::StyleLockedCssRules> Servo_##type_##Rule_GetRules( \
+ const mozilla::Style##prefix_##type_##Rule* rule);
+
+#define GROUP_RULE_FUNCS_LOCKED(type_) \
+ GROUP_RULE_FUNCS_WITH_PREFIX(type_, Locked)
+
+#define GROUP_RULE_FUNCS_UNLOCKED(type_) GROUP_RULE_FUNCS_WITH_PREFIX(type_, )
+
+BASIC_RULE_FUNCS_LOCKED(Style)
+BASIC_RULE_FUNCS_LOCKED(Import)
+BASIC_RULE_FUNCS_WITHOUT_GETTER_LOCKED(Keyframe)
+BASIC_RULE_FUNCS_LOCKED(Keyframes)
+GROUP_RULE_FUNCS_UNLOCKED(Media)
+GROUP_RULE_FUNCS_UNLOCKED(Document)
+BASIC_RULE_FUNCS_UNLOCKED(Namespace)
+BASIC_RULE_FUNCS_LOCKED(Page)
+BASIC_RULE_FUNCS_UNLOCKED(Property)
+GROUP_RULE_FUNCS_UNLOCKED(Supports)
+GROUP_RULE_FUNCS_UNLOCKED(LayerBlock)
+BASIC_RULE_FUNCS_UNLOCKED(LayerStatement)
+BASIC_RULE_FUNCS_UNLOCKED(FontFeatureValues)
+BASIC_RULE_FUNCS_UNLOCKED(FontPaletteValues)
+BASIC_RULE_FUNCS_LOCKED(FontFace)
+BASIC_RULE_FUNCS_LOCKED(CounterStyle)
+GROUP_RULE_FUNCS_UNLOCKED(Container)
+
+#undef GROUP_RULE_FUNCS_LOCKED
+#undef GROUP_RULE_FUNCS_UNLOCKED
+#undef GROUP_RULE_FUNCS_WITH_PREFIX
+#undef BASIC_RULE_FUNCS_LOCKED
+#undef BASIC_RULE_FUNCS_UNLOCKED
+#undef BASIC_RULE_FUNCS_WITH_PREFIX
+#undef BASIC_RULE_FUNCS_WITHOUT_GETTER_LOCKED
+#undef BASIC_RULE_FUNCS_WITHOUT_GETTER_UNLOCKED
+#undef BASIC_RULE_FUNCS_WITHOUT_GETTER_WITH_PREFIX
+
+#define BASIC_SERDE_FUNCS(type_) \
+ bool Servo_##type_##_Deserialize(mozilla::ipc::ByteBuf* input, type_* v); \
+ bool Servo_##type_##_Serialize(const type_* v, mozilla::ipc::ByteBuf* output);
+
+using RayFunction = StyleRayFunction<StyleAngle>;
+BASIC_SERDE_FUNCS(LengthPercentage)
+BASIC_SERDE_FUNCS(StyleRotate)
+BASIC_SERDE_FUNCS(StyleScale)
+BASIC_SERDE_FUNCS(StyleTranslate)
+BASIC_SERDE_FUNCS(StyleTransform)
+BASIC_SERDE_FUNCS(StyleOffsetPath)
+BASIC_SERDE_FUNCS(StyleOffsetRotate)
+BASIC_SERDE_FUNCS(StylePositionOrAuto)
+BASIC_SERDE_FUNCS(StyleComputedTimingFunction)
+
+#undef BASIC_SERDE_FUNCS
+
+void Servo_CounterStyleRule_GetDescriptorCssText(
+ const StyleLockedCounterStyleRule* rule, nsCSSCounterDesc desc,
+ nsACString* result);
+
+bool Servo_CounterStyleRule_SetDescriptor(
+ const StyleLockedCounterStyleRule* rule, nsCSSCounterDesc desc,
+ const nsACString* value);
+
+} // extern "C"
+
+#pragma GCC diagnostic pop
+
+} // namespace mozilla
+
+#endif // mozilla_ServoBindings_h