mirror of
https://github.com/servo/servo.git
synced 2025-06-24 09:04:33 +01:00
674 lines
25 KiB
Python
Executable file
674 lines
25 KiB
Python
Executable file
#!/usr/bin/env python
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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from __future__ import print_function
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import os
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import sys
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import argparse
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import platform
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import copy
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import subprocess
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import tempfile
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import regen_atoms
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DESCRIPTION = 'Regenerate the rust version of the structs or the bindings file.'
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TOOLS_DIR = os.path.dirname(os.path.abspath(__file__))
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COMMON_BUILD_KEY = "__common__"
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COMPILATION_TARGETS = {
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# Flags common for all the targets.
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COMMON_BUILD_KEY: {
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"flags": [
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"--no-unstable-rust", "--no-type-renaming",
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],
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"clang_flags": [
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"-x", "c++", "-std=c++14",
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"-DTRACING=1", "-DIMPL_LIBXUL", "-DMOZ_STYLO_BINDINGS=1",
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"-DMOZILLA_INTERNAL_API", "-DRUST_BINDGEN", "-DMOZ_STYLO"
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],
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"search_dirs": [
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"{}/dist/include",
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"{}/dist/include/nspr",
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"{}/../nsprpub/pr/include"
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],
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"includes": [
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"{}/mozilla-config.h",
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],
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},
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# Generation of style structs.
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"structs": {
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"target_dir": "../gecko_bindings",
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"test": True,
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"flags": [
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"--ignore-functions",
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"--ignore-methods",
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],
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"includes": [
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"{}/dist/include/gfxFontConstants.h",
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"{}/dist/include/nsThemeConstants.h",
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"{}/dist/include/mozilla/dom/AnimationEffectReadOnlyBinding.h",
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"{}/dist/include/mozilla/ServoElementSnapshot.h",
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"{}/dist/include/mozilla/dom/Element.h",
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],
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"files": [
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"{}/dist/include/nsStyleStruct.h",
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],
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"build_kinds": {
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"debug": {
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"clang_flags": [
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"-DDEBUG=1",
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"-DJS_DEBUG=1",
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]
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},
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"release": {
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}
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},
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"raw_lines": [
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# We can get rid of this when the bindings move into the style crate.
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"pub enum OpaqueStyleData {}",
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],
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"whitelist_vars": [
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"NS_THEME_.*",
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"NODE_.*",
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"NS_FONT_.*",
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"NS_STYLE_.*",
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"NS_CORNER_.*",
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"NS_RADIUS_.*",
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"BORDER_COLOR_.*",
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"BORDER_STYLE_.*"
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],
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"whitelist": [
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"RawGeckoNode",
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"RawGeckoElement",
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"RawGeckoDocument",
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"Element",
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"Side",
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"nsTArrayHeader",
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"nsCSSValueGradient",
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"nsCSSValueList_heap",
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"FrameRequestCallback",
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"nsCSSValueTriplet_heap",
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"nsCSSRect_heap",
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"AnonymousContent",
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"nsCSSValuePairList",
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"nsCSSValuePairList_heap",
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"nsCSSValuePair_heap",
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"CapturingContentInfo",
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"Runnable",
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"AudioContext",
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"FontFamilyListRefCnt",
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"ImageURL",
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"Image",
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"nsCSSValueFloatColor",
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"ServoAttrSnapshot",
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"GridNamedArea",
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"nsAttrName",
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"nsAttrValue",
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"nsCSSRect",
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"gfxFontFeature",
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"gfxAlternateValue",
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"nsCSSValueTokenStream",
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"nsSize",
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"pair",
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"StyleClipPathGeometryBox",
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"FontFamilyName",
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"nsCSSPropertyID",
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"StyleAnimation",
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"StyleTransition",
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"nsresult",
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"nsCSSValueGradientStop",
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"nsBorderColors",
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"Position",
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"nsCSSValueList",
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"nsCSSValue",
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"UniquePtr", "DefaultDelete",
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"StyleBasicShape",
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"nsMargin",
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"nsStyleContentData",
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"nsStyleFilter", "nsRect", "FragmentOrURL", "nsStyleCoord",
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"nsStyleCounterData", "StaticRefPtr", "nsTArray", "nsStyleFont",
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"nsStyleColor", "nsStyleList", "nsStyleText", "nsStyleVisibility",
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"nsStyleUserInterface", "nsStyleTableBorder", "nsStyleSVG",
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"nsStyleVariables", "nsStyleBackground", "nsStylePosition",
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"nsStyleTextReset", "nsStyleDisplay", "nsStyleContent",
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"nsStyleUIReset", "nsStyleTable", "nsStyleMargin",
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"nsStylePadding", "nsStyleBorder", "nsStyleOutline", "nsStyleXUL",
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"nsStyleSVGReset", "nsStyleColumn", "nsStyleEffects",
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"nsStyleImage", "nsStyleGradient", "nsStyleCoord",
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"nsStyleGradientStop", "nsStyleImageLayers",
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"nsStyleImageLayers_Layer", "nsStyleImageLayers_LayerType",
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"nsStyleUnit", "nsStyleUnion", "nsStyleCoord", "nsRestyleHint",
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"ServoElementSnapshot", "nsChangeHint", "SheetParsingMode",
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"nsMainThreadPtrHandle", "nsMainThreadPtrHolder", "nscolor",
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"nsFont", "FontFamilyList", "FontFamilyType", "nsIAtom",
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"nsStyleContext", "StyleClipPath", "StyleBasicShapeType",
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"StyleBasicShape", "nsCSSShadowArray",
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],
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"opaque_types": [
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"atomic___base",
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"nsAString_internal_char_traits",
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"nsAString_internal_incompatible_char_type",
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"nsACString_internal_char_traits",
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"nsACString_internal_incompatible_char_type",
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"RefPtr_Proxy", "nsAutoPtr_Proxy", "Pair_Base",
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"RefPtr_Proxy_member_function", "nsAutoPtr_Proxy_member_function",
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"nsWritingIterator_reference", "nsReadingIterator_reference",
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"Heap", "TenuredHeap", "Rooted", "WeakPtr", # <- More template magic than what
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# we support.
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"nsTObserverArray", # <- Inherits from nsAutoTObserverArray<T, 0>
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"PLArenaPool", # <- Bindgen bug
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"nsTHashtable", # <- Inheriting from inner typedefs that clang
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# doesn't expose properly.
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"nsRefPtrHashtable", "nsDataHashtable", "nsClassHashtable", # <- Ditto
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"nsIDocument_SelectorCache", # <- Inherits from nsExpirationTracker<.., 4>
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"nsIPresShell_ScrollAxis", # <- For some reason the alignment of this is 4
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# for clang.
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"nsPIDOMWindow", # <- Takes the vtable from a template parameter, and we can't
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# generate it conditionally.
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"SupportsWeakPtr",
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"Maybe", # <- AlignedStorage, which means templated union, which
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# means impossible to represent in stable rust as of
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# right now.
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"gfxSize", # <- Same, union { struct { T width; T height; }; T components[2] };
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"gfxSize_Super", # Ditto.
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],
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"servo_mapped_generic_types": [
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{
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"generic": True,
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"gecko": "ServoUnsafeCell",
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"servo": "::std::cell::UnsafeCell"
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}, {
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"generic": True,
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"gecko": "ServoCell",
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"servo": "::std::cell::Cell"
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}, {
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"generic": False,
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"gecko": "ServoNodeData",
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"servo": "OpaqueStyleData"
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}
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],
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},
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# Generation of the ffi bindings.
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"bindings": {
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"target_dir": "../gecko_bindings",
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"raw_lines": [
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"use heapsize::HeapSizeOf;",
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],
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"flags": [
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"--ignore-methods",
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],
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"match_headers": [
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"ServoBindingList.h",
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"ServoBindings.h",
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"nsStyleStructList.h",
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],
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"files": [
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"{}/dist/include/mozilla/ServoBindings.h",
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],
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# Types to just use from the `structs` target.
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"structs_types": [
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"nsStyleFont", "nsStyleColor", "nsStyleList", "nsStyleText",
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"nsStyleVisibility", "nsStyleUserInterface", "nsStyleTableBorder",
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"nsStyleSVG", "nsStyleVariables", "nsStyleBackground",
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"nsStylePosition", "nsStyleTextReset", "nsStyleDisplay",
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"nsStyleContent", "nsStyleUIReset", "nsStyleTable",
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"nsStyleMargin", "nsStylePadding", "nsStyleBorder",
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"nsStyleOutline", "nsStyleXUL", "nsStyleSVGReset", "nsStyleColumn",
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"nsStyleEffects", "nsStyleImage", "nsStyleGradient",
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"nsStyleCoord", "nsStyleGradientStop", "nsStyleImageLayers",
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"nsStyleImageLayers_Layer", "nsStyleImageLayers_LayerType",
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"nsStyleUnit", "nsStyleUnion", "nsStyleCoord_CalcValue",
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"nsStyleCoord_Calc", "nsRestyleHint", "ServoElementSnapshot",
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"nsChangeHint", "SheetParsingMode", "nsMainThreadPtrHandle",
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"nsMainThreadPtrHolder", "nscolor", "nsFont", "FontFamilyList",
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"FontFamilyType", "nsIAtom", "nsStyleContext", "StyleClipPath",
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"StyleBasicShapeType", "StyleBasicShape", "nsCSSShadowArray",
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"nsINode", "nsIDocument", "nsIPrincipal", "nsIURI",
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"RawGeckoNode", "RawGeckoElement", "RawGeckoDocument",
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"ServoNodeData",
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],
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"servo_nullable_arc_types": [
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"ServoComputedValues", "RawServoStyleSheet",
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"ServoDeclarationBlock"
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],
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"servo_owned_types": [
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"RawServoStyleSet",
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"StyleChildrenIterator",
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],
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"servo_immutable_borrow_types": [
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"RawGeckoNode",
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"RawGeckoElement",
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"RawGeckoDocument",
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],
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"whitelist_functions": [
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"Servo_.*",
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"Gecko_.*"
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]
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},
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"atoms": {
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"custom_build": regen_atoms.build,
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}
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}
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def platform_dependent_defines():
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ret = []
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if os.name == "posix":
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ret.append("-DOS_POSIX=1")
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system = platform.system()
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if system == "Linux":
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ret.append("-DOS_LINUX=1")
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elif system == "Darwin":
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ret.append("-DOS_MACOSX=1")
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elif system == "Windows":
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ret.append("-DOS_WIN=1")
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ret.append("-DWIN32=1")
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msvc_platform = os.environ["PLATFORM"]
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if msvc_platform == "X86":
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ret.append("--target=i686-pc-win32")
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elif msvc_platform == "X64":
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ret.append("--target=x86_64-pc-win32")
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else:
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raise Exception("Only MSVC builds are supported on Windows")
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# For compatibility with MSVC 2015
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ret.append("-fms-compatibility-version=19")
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# To enable the builtin __builtin_offsetof so that CRT wouldn't
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# use reinterpret_cast in offsetof() which is not allowed inside
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# static_assert().
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ret.append("-D_CRT_USE_BUILTIN_OFFSETOF")
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# Enable hidden attribute (which is not supported by MSVC and
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# thus not enabled by default with a MSVC-compatibile build)
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# to exclude hidden symbols from the generated file.
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ret.append("-DHAVE_VISIBILITY_HIDDEN_ATTRIBUTE=1")
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else:
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raise Exception("Unknown platform")
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return ret
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def extend_object(obj, other):
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if not obj or not other:
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return obj
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if isinstance(obj, list) and isinstance(other, list):
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obj.extend(other)
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return
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assert isinstance(obj, dict) and isinstance(other, dict)
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for key in other.keys():
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if key in obj:
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extend_object(obj[key], other[key])
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else:
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obj[key] = copy.deepcopy(other[key])
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def build(objdir, target_name, debug, debugger, kind_name=None,
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output_filename=None, bindgen=None, skip_test=False,
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verbose=False):
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assert target_name in COMPILATION_TARGETS
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current_target = COMPILATION_TARGETS[target_name]
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if COMMON_BUILD_KEY in COMPILATION_TARGETS:
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current_target = copy.deepcopy(COMPILATION_TARGETS[COMMON_BUILD_KEY])
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extend_object(current_target, COMPILATION_TARGETS[target_name])
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assert ((kind_name is None and "build_kinds" not in current_target) or
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(kind_name in current_target["build_kinds"]))
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if "custom_build" in current_target:
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print("[CUSTOM] {}::{} in \"{}\"... ".format(target_name, kind_name, objdir), end='')
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sys.stdout.flush()
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ret = current_target["custom_build"](objdir, verbose=True)
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if ret != 0:
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print("FAIL")
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else:
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print("OK")
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return ret
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if bindgen is None:
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bindgen = os.path.join(TOOLS_DIR, "rust-bindgen")
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if os.path.isdir(bindgen):
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bindgen = ["cargo", "run", "--manifest-path",
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os.path.join(bindgen, "Cargo.toml"), "--features", "llvm_stable", "--"]
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else:
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bindgen = [bindgen]
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if kind_name is not None:
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current_target = copy.deepcopy(current_target)
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extend_object(current_target, current_target["build_kinds"][kind_name])
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target_dir = None
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if output_filename is None and "target_dir" in current_target:
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target_dir = current_target["target_dir"]
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if output_filename is None:
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output_filename = "{}.rs".format(target_name)
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if kind_name is not None:
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output_filename = "{}_{}.rs".format(target_name, kind_name)
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if target_dir:
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output_filename = "{}/{}".format(target_dir, output_filename)
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print("[BINDGEN] {}::{} in \"{}\"... ".format(target_name, kind_name, objdir), end='')
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sys.stdout.flush()
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flags = []
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# This makes an FFI-safe void type that can't be matched on
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# &VoidType is UB to have, because you can match on it
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# to produce a reachable unreachable. If it's wrapped in
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# a struct as a private field it becomes okay again
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#
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# Not 100% sure of how safe this is, but it's what we're using
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# in the XPCOM ffi too
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# https://github.com/nikomatsakis/rust-memory-model/issues/2
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def zero_size_type(ty, flags):
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flags.append("--blacklist-type")
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flags.append(ty)
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flags.append("--raw-line")
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flags.append("enum {0}Void{{ }}".format(ty))
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flags.append("--raw-line")
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flags.append("pub struct {0}({0}Void);".format(ty))
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if "flags" in current_target:
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flags.extend(current_target["flags"])
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clang_flags = []
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if "clang_flags" in current_target:
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clang_flags.extend(current_target["clang_flags"])
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clang_flags.extend(platform_dependent_defines())
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if platform.system() == "Windows":
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flags.append("--use-msvc-mangling")
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if "raw_lines" in current_target:
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for raw_line in current_target["raw_lines"]:
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flags.append("--raw-line")
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flags.append(raw_line)
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if "search_dirs" in current_target:
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for dir_name in current_target["search_dirs"]:
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clang_flags.append("-I")
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clang_flags.append(dir_name.format(objdir))
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if "includes" in current_target:
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for file_name in current_target["includes"]:
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clang_flags.append("-include")
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clang_flags.append(file_name.format(objdir))
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if "whitelist" in current_target:
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for header in current_target["whitelist"]:
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flags.append("--whitelist-type")
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flags.append(header)
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if "whitelist_functions" in current_target:
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for header in current_target["whitelist_functions"]:
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flags.append("--whitelist-function")
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flags.append(header)
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if "whitelist_vars" in current_target:
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for header in current_target["whitelist_vars"]:
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flags.append("--whitelist-var")
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flags.append(header)
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if "opaque_types" in current_target:
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for ty in current_target["opaque_types"]:
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flags.append("--opaque-type")
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flags.append(ty)
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if "servo_nullable_arc_types" in current_target:
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for ty in current_target["servo_nullable_arc_types"]:
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flags.append("--blacklist-type")
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flags.append("{}Strong".format(ty))
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flags.append("--raw-line")
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flags.append("pub type {0}Strong = ::gecko_bindings::sugar::ownership::Strong<{0}>;"
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.format(ty))
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flags.append("--blacklist-type")
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flags.append("{}BorrowedOrNull".format(ty))
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flags.append("--raw-line")
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flags.append("pub type {0}BorrowedOrNull<'a> = \
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Option<&'a {0}>;".format(ty))
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flags.append("--blacklist-type")
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flags.append("{}Borrowed".format(ty))
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flags.append("--raw-line")
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flags.append("pub type {0}Borrowed<'a> = &'a {0};".format(ty))
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zero_size_type(ty, flags)
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if "servo_immutable_borrow_types" in current_target:
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for ty in current_target["servo_immutable_borrow_types"]:
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flags.append("--blacklist-type")
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flags.append("{}Borrowed".format(ty))
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flags.append("--raw-line")
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flags.append("pub type {0}Borrowed<'a> = &'a {0};".format(ty))
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flags.append("--blacklist-type")
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flags.append("{}BorrowedOrNull".format(ty))
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flags.append("--raw-line")
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flags.append("pub type {0}BorrowedOrNull<'a> = \
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Option<&'a {0}>;".format(ty))
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# Right now the only immutable borrow types are ones which we import
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# from the |structs| module. As such, we don't need to create an opaque
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# type with zero_size_type. If we ever introduce immutable borrow types
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# which _do_ need to be opaque, we'll need a separate mode.
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if "servo_mapped_generic_types" in current_target:
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for ty in current_target["servo_mapped_generic_types"]:
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flags.append("--blacklist-type")
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flags.append("{}".format(ty["gecko"]))
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flags.append("--raw-line")
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flags.append("pub type {0}{2} = {1}{2};".format(ty["gecko"], ty["servo"], "<T>" if ty["generic"] else ""))
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if "servo_owned_types" in current_target:
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for ty in current_target["servo_owned_types"]:
|
|
flags.append("--blacklist-type")
|
|
flags.append("{}Borrowed".format(ty))
|
|
flags.append("--raw-line")
|
|
flags.append("pub type {0}Borrowed<'a> = &'a {0};".format(ty))
|
|
flags.append("--blacklist-type")
|
|
flags.append("{}BorrowedMut".format(ty))
|
|
flags.append("--raw-line")
|
|
flags.append("pub type {0}BorrowedMut<'a> = &'a mut {0};".format(ty))
|
|
flags.append("--blacklist-type")
|
|
flags.append("{}Owned".format(ty))
|
|
flags.append("--raw-line")
|
|
flags.append("pub type {0}Owned = ::gecko_bindings::sugar::ownership::Owned<{0}>;".format(ty))
|
|
flags.append("--blacklist-type")
|
|
flags.append("{}BorrowedOrNull".format(ty))
|
|
flags.append("--raw-line")
|
|
flags.append("pub type {0}BorrowedOrNull<'a> = Option<&'a {0}>;"
|
|
.format(ty))
|
|
flags.append("--blacklist-type")
|
|
flags.append("{}BorrowedMutOrNull".format(ty))
|
|
flags.append("--raw-line")
|
|
flags.append("pub type {0}BorrowedMutOrNull<'a> = Option<&'a mut {0}>;"
|
|
.format(ty))
|
|
flags.append("--blacklist-type")
|
|
flags.append("{}OwnedOrNull".format(ty))
|
|
flags.append("--raw-line")
|
|
flags.append("pub type {0}OwnedOrNull = ::gecko_bindings::sugar::ownership::OwnedOrNull<{0}>;".format(ty))
|
|
zero_size_type(ty, flags)
|
|
|
|
if "structs_types" in current_target:
|
|
for ty in current_target["structs_types"]:
|
|
flags.append("--blacklist-type")
|
|
flags.append(ty)
|
|
flags.append("--raw-line")
|
|
flags.append("use gecko_bindings::structs::{};".format(ty))
|
|
|
|
# TODO: this is hacky, figure out a better way to do it without
|
|
# hardcoding everything...
|
|
if ty.startswith("nsStyle"):
|
|
flags.extend([
|
|
"--raw-line",
|
|
"unsafe impl Send for {} {{}}".format(ty),
|
|
"--raw-line",
|
|
"unsafe impl Sync for {} {{}}".format(ty),
|
|
])
|
|
|
|
flags.append("-o")
|
|
flags.append(output_filename)
|
|
|
|
assert len(current_target["files"]) == 1
|
|
flags.append(current_target["files"][0].format(objdir))
|
|
|
|
flags = bindgen + flags + ["--"] + clang_flags
|
|
|
|
if verbose:
|
|
print(flags)
|
|
|
|
output = ""
|
|
try:
|
|
if debug:
|
|
flags = [debugger, "--args"] + flags
|
|
subprocess.check_call(flags)
|
|
else:
|
|
output = subprocess.check_output(flags, stderr=subprocess.STDOUT)
|
|
output = output.decode('utf8')
|
|
except subprocess.CalledProcessError as e:
|
|
print("FAIL\n", e.output.decode('utf8'))
|
|
return 1
|
|
|
|
print("OK")
|
|
|
|
if verbose:
|
|
print(output)
|
|
|
|
if current_target.get("test", False) and not skip_test:
|
|
print("[RUSTC]... ", end='')
|
|
sys.stdout.flush()
|
|
|
|
with tempfile.NamedTemporaryFile(delete=False) as f:
|
|
test_file = f.name
|
|
output = None
|
|
try:
|
|
rustc_command = ["rustc", output_filename, "--test", "-o", test_file]
|
|
output = subprocess.check_output(rustc_command, stderr=subprocess.STDOUT)
|
|
output = output.decode('utf8')
|
|
except subprocess.CalledProcessError as e:
|
|
print("FAIL\n", e.output.decode('utf8'))
|
|
return 1
|
|
|
|
print("OK")
|
|
|
|
if verbose:
|
|
print(output)
|
|
|
|
print("[RUSTC_TEST]... ", end='')
|
|
sys.stdout.flush()
|
|
|
|
try:
|
|
output = subprocess.check_output([test_file], stderr=subprocess.STDOUT)
|
|
output = output.decode('utf8')
|
|
except subprocess.CalledProcessError as e:
|
|
print("tests failed: ", e.output.decode('utf8'))
|
|
return 1
|
|
|
|
os.remove(test_file)
|
|
print("OK")
|
|
|
|
# TODO: this -3 is hacky as heck
|
|
print(output.split('\n')[-3])
|
|
|
|
if verbose:
|
|
print(output)
|
|
|
|
return 0
|
|
|
|
|
|
def builds_for(target_name, kind):
|
|
if target_name == "all":
|
|
for target in COMPILATION_TARGETS.keys():
|
|
if target == COMMON_BUILD_KEY:
|
|
continue
|
|
|
|
if "build_kinds" in COMPILATION_TARGETS[target]:
|
|
for kind in COMPILATION_TARGETS[target]["build_kinds"].keys():
|
|
yield (target, kind)
|
|
else:
|
|
yield (target, None)
|
|
return
|
|
|
|
target = COMPILATION_TARGETS[target_name]
|
|
if "build_kinds" in target:
|
|
if kind is None:
|
|
for kind in target["build_kinds"].keys():
|
|
yield(target_name, kind)
|
|
else:
|
|
yield (target_name, kind)
|
|
return
|
|
|
|
yield (target_name, None)
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(description=DESCRIPTION)
|
|
parser.add_argument('--target', default='all',
|
|
help='The target to build, either "structs" or "bindings"')
|
|
parser.add_argument('--kind',
|
|
help='Kind of build')
|
|
parser.add_argument('--bindgen',
|
|
help='Override bindgen binary')
|
|
parser.add_argument('--output', '-o',
|
|
help='Output of the script')
|
|
parser.add_argument('--skip-test',
|
|
action='store_true',
|
|
help='Skip automatic tests, useful for debugging')
|
|
parser.add_argument('--verbose', '-v',
|
|
action='store_true',
|
|
help='Be... verbose')
|
|
parser.add_argument('--debug',
|
|
action='store_true',
|
|
help='Try to use a debugger to debug bindgen commands (default: gdb)')
|
|
parser.add_argument('--debugger', default='gdb',
|
|
help='Debugger to use. Only used if --debug is passed.')
|
|
parser.add_argument('objdir')
|
|
|
|
args = parser.parse_args()
|
|
|
|
if not os.path.isdir(args.objdir):
|
|
print("\"{}\" doesn't seem to be a directory".format(args.objdir))
|
|
return 1
|
|
|
|
if (args.target != "all" and args.target not in COMPILATION_TARGETS) or args.target == COMMON_BUILD_KEY:
|
|
print("{} is not a valid compilation target.".format(args.target))
|
|
print("Valid compilation targets are:")
|
|
for target in COMPILATION_TARGETS.keys():
|
|
if target != COMMON_BUILD_KEY:
|
|
print("\t * {}".format(target))
|
|
return 1
|
|
|
|
current_target = COMPILATION_TARGETS.get(args.target, {})
|
|
if args.kind and "build_kinds" in current_target and args.kind not in current_target["build_kinds"]:
|
|
print("{} is not a valid build kind.".format(args.kind))
|
|
print("Valid build kinds are:")
|
|
for kind in current_target["build_kinds"].keys():
|
|
print("\t * {}".format(kind))
|
|
return 1
|
|
|
|
for target, kind in builds_for(args.target, args.kind):
|
|
ret = build(args.objdir, target, kind_name=kind,
|
|
debug=args.debug, debugger=args.debugger,
|
|
bindgen=args.bindgen, skip_test=args.skip_test,
|
|
output_filename=args.output,
|
|
verbose=args.verbose)
|
|
if ret != 0:
|
|
print("{}::{} failed".format(target, kind))
|
|
return ret
|
|
|
|
return 0
|
|
|
|
if __name__ == '__main__':
|
|
sys.exit(main())
|