use std::sync::LazyLock;

use hashbrown::HashSet;

pub const RESERVED_KEYWORDS: &[&str] = &[
    //
    // GLSL 4.6 keywords, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L2004-L2322
    // GLSL ES 3.2 keywords, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/es/3.2/GLSL_ES_Specification_3.20.html#L2166-L2478
    //
    // Note: The GLSL ES 3.2 keywords are the same as GLSL 4.6 keywords with some residing in the reserved section.
    // The only exception are the missing Vulkan keywords which I think is an oversight (see https://github.com/KhronosGroup/OpenGL-Registry/issues/585).
    //
    "const",
    "uniform",
    "buffer",
    "shared",
    "attribute",
    "varying",
    "coherent",
    "volatile",
    "restrict",
    "readonly",
    "writeonly",
    "atomic_uint",
    "layout",
    "centroid",
    "flat",
    "smooth",
    "noperspective",
    "patch",
    "sample",
    "invariant",
    "precise",
    "break",
    "continue",
    "do",
    "for",
    "while",
    "switch",
    "case",
    "default",
    "if",
    "else",
    "subroutine",
    "in",
    "out",
    "inout",
    "int",
    "void",
    "bool",
    "true",
    "false",
    "float",
    "double",
    "discard",
    "return",
    "vec2",
    "vec3",
    "vec4",
    "ivec2",
    "ivec3",
    "ivec4",
    "bvec2",
    "bvec3",
    "bvec4",
    "uint",
    "uvec2",
    "uvec3",
    "uvec4",
    "dvec2",
    "dvec3",
    "dvec4",
    "mat2",
    "mat3",
    "mat4",
    "mat2x2",
    "mat2x3",
    "mat2x4",
    "mat3x2",
    "mat3x3",
    "mat3x4",
    "mat4x2",
    "mat4x3",
    "mat4x4",
    "dmat2",
    "dmat3",
    "dmat4",
    "dmat2x2",
    "dmat2x3",
    "dmat2x4",
    "dmat3x2",
    "dmat3x3",
    "dmat3x4",
    "dmat4x2",
    "dmat4x3",
    "dmat4x4",
    "lowp",
    "mediump",
    "highp",
    "precision",
    "sampler1D",
    "sampler1DShadow",
    "sampler1DArray",
    "sampler1DArrayShadow",
    "isampler1D",
    "isampler1DArray",
    "usampler1D",
    "usampler1DArray",
    "sampler2D",
    "sampler2DShadow",
    "sampler2DArray",
    "sampler2DArrayShadow",
    "isampler2D",
    "isampler2DArray",
    "usampler2D",
    "usampler2DArray",
    "sampler2DRect",
    "sampler2DRectShadow",
    "isampler2DRect",
    "usampler2DRect",
    "sampler2DMS",
    "isampler2DMS",
    "usampler2DMS",
    "sampler2DMSArray",
    "isampler2DMSArray",
    "usampler2DMSArray",
    "sampler3D",
    "isampler3D",
    "usampler3D",
    "samplerCube",
    "samplerCubeShadow",
    "isamplerCube",
    "usamplerCube",
    "samplerCubeArray",
    "samplerCubeArrayShadow",
    "isamplerCubeArray",
    "usamplerCubeArray",
    "samplerBuffer",
    "isamplerBuffer",
    "usamplerBuffer",
    "image1D",
    "iimage1D",
    "uimage1D",
    "image1DArray",
    "iimage1DArray",
    "uimage1DArray",
    "image2D",
    "iimage2D",
    "uimage2D",
    "image2DArray",
    "iimage2DArray",
    "uimage2DArray",
    "image2DRect",
    "iimage2DRect",
    "uimage2DRect",
    "image2DMS",
    "iimage2DMS",
    "uimage2DMS",
    "image2DMSArray",
    "iimage2DMSArray",
    "uimage2DMSArray",
    "image3D",
    "iimage3D",
    "uimage3D",
    "imageCube",
    "iimageCube",
    "uimageCube",
    "imageCubeArray",
    "iimageCubeArray",
    "uimageCubeArray",
    "imageBuffer",
    "iimageBuffer",
    "uimageBuffer",
    "struct",
    // Vulkan keywords
    "texture1D",
    "texture1DArray",
    "itexture1D",
    "itexture1DArray",
    "utexture1D",
    "utexture1DArray",
    "texture2D",
    "texture2DArray",
    "itexture2D",
    "itexture2DArray",
    "utexture2D",
    "utexture2DArray",
    "texture2DRect",
    "itexture2DRect",
    "utexture2DRect",
    "texture2DMS",
    "itexture2DMS",
    "utexture2DMS",
    "texture2DMSArray",
    "itexture2DMSArray",
    "utexture2DMSArray",
    "texture3D",
    "itexture3D",
    "utexture3D",
    "textureCube",
    "itextureCube",
    "utextureCube",
    "textureCubeArray",
    "itextureCubeArray",
    "utextureCubeArray",
    "textureBuffer",
    "itextureBuffer",
    "utextureBuffer",
    "sampler",
    "samplerShadow",
    "subpassInput",
    "isubpassInput",
    "usubpassInput",
    "subpassInputMS",
    "isubpassInputMS",
    "usubpassInputMS",
    // Reserved keywords
    "common",
    "partition",
    "active",
    "asm",
    "class",
    "union",
    "enum",
    "typedef",
    "template",
    "this",
    "resource",
    "goto",
    "inline",
    "noinline",
    "public",
    "static",
    "extern",
    "external",
    "interface",
    "long",
    "short",
    "half",
    "fixed",
    "unsigned",
    "superp",
    "input",
    "output",
    "hvec2",
    "hvec3",
    "hvec4",
    "fvec2",
    "fvec3",
    "fvec4",
    "filter",
    "sizeof",
    "cast",
    "namespace",
    "using",
    "sampler3DRect",
    // Reserved keywords that were unreserved in GLSL 4.2
    "image1DArrayShadow",
    "image1DShadow",
    "image2DArrayShadow",
    "image2DShadow",
    // Reserved keywords that were unreserved in GLSL 4.4
    "packed",
    "row_major",
    //
    // GLSL 4.6 Built-In Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L13314
    //
    // Angle and Trigonometry Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L13469-L13561C5
    "radians",
    "degrees",
    "sin",
    "cos",
    "tan",
    "asin",
    "acos",
    "atan",
    "sinh",
    "cosh",
    "tanh",
    "asinh",
    "acosh",
    "atanh",
    // Exponential Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L13569-L13620
    "pow",
    "exp",
    "log",
    "exp2",
    "log2",
    "sqrt",
    "inversesqrt",
    // Common Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L13628-L13908
    "abs",
    "sign",
    "floor",
    "trunc",
    "round",
    "roundEven",
    "ceil",
    "fract",
    "mod",
    "modf",
    "min",
    "max",
    "clamp",
    "mix",
    "step",
    "smoothstep",
    "isnan",
    "isinf",
    "floatBitsToInt",
    "floatBitsToUint",
    "intBitsToFloat",
    "uintBitsToFloat",
    "fma",
    "frexp",
    "ldexp",
    // Floating-Point Pack and Unpack Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L13916-L14007
    "packUnorm2x16",
    "packSnorm2x16",
    "packUnorm4x8",
    "packSnorm4x8",
    "unpackUnorm2x16",
    "unpackSnorm2x16",
    "unpackUnorm4x8",
    "unpackSnorm4x8",
    "packHalf2x16",
    "unpackHalf2x16",
    "packDouble2x32",
    "unpackDouble2x32",
    // Geometric Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L14014-L14121
    "length",
    "distance",
    "dot",
    "cross",
    "normalize",
    "ftransform",
    "faceforward",
    "reflect",
    "refract",
    // Matrix Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L14151-L14215
    "matrixCompMult",
    "outerProduct",
    "transpose",
    "determinant",
    "inverse",
    // Vector Relational Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L14259-L14322
    "lessThan",
    "lessThanEqual",
    "greaterThan",
    "greaterThanEqual",
    "equal",
    "notEqual",
    "any",
    "all",
    "not",
    // Integer Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L14335-L14432
    "uaddCarry",
    "usubBorrow",
    "umulExtended",
    "imulExtended",
    "bitfieldExtract",
    "bitfieldInsert",
    "bitfieldReverse",
    "bitCount",
    "findLSB",
    "findMSB",
    // Texture Query Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L14645-L14732
    "textureSize",
    "textureQueryLod",
    "textureQueryLevels",
    "textureSamples",
    // Texel Lookup Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L14736-L14997
    "texture",
    "textureProj",
    "textureLod",
    "textureOffset",
    "texelFetch",
    "texelFetchOffset",
    "textureProjOffset",
    "textureLodOffset",
    "textureProjLod",
    "textureProjLodOffset",
    "textureGrad",
    "textureGradOffset",
    "textureProjGrad",
    "textureProjGradOffset",
    // Texture Gather Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L15077-L15154
    "textureGather",
    "textureGatherOffset",
    "textureGatherOffsets",
    // Compatibility Profile Texture Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L15161-L15220
    "texture1D",
    "texture1DProj",
    "texture1DLod",
    "texture1DProjLod",
    "texture2D",
    "texture2DProj",
    "texture2DLod",
    "texture2DProjLod",
    "texture3D",
    "texture3DProj",
    "texture3DLod",
    "texture3DProjLod",
    "textureCube",
    "textureCubeLod",
    "shadow1D",
    "shadow2D",
    "shadow1DProj",
    "shadow2DProj",
    "shadow1DLod",
    "shadow2DLod",
    "shadow1DProjLod",
    "shadow2DProjLod",
    // Atomic Counter Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L15241-L15531
    "atomicCounterIncrement",
    "atomicCounterDecrement",
    "atomicCounter",
    "atomicCounterAdd",
    "atomicCounterSubtract",
    "atomicCounterMin",
    "atomicCounterMax",
    "atomicCounterAnd",
    "atomicCounterOr",
    "atomicCounterXor",
    "atomicCounterExchange",
    "atomicCounterCompSwap",
    // Atomic Memory Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L15563-L15624
    "atomicAdd",
    "atomicMin",
    "atomicMax",
    "atomicAnd",
    "atomicOr",
    "atomicXor",
    "atomicExchange",
    "atomicCompSwap",
    // Image Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L15763-L15878
    "imageSize",
    "imageSamples",
    "imageLoad",
    "imageStore",
    "imageAtomicAdd",
    "imageAtomicMin",
    "imageAtomicMax",
    "imageAtomicAnd",
    "imageAtomicOr",
    "imageAtomicXor",
    "imageAtomicExchange",
    "imageAtomicCompSwap",
    // Geometry Shader Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L15886-L15932
    "EmitStreamVertex",
    "EndStreamPrimitive",
    "EmitVertex",
    "EndPrimitive",
    // Fragment Processing Functions, Derivative Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L16041-L16114
    "dFdx",
    "dFdy",
    "dFdxFine",
    "dFdyFine",
    "dFdxCoarse",
    "dFdyCoarse",
    "fwidth",
    "fwidthFine",
    "fwidthCoarse",
    // Fragment Processing Functions, Interpolation Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L16150-L16198
    "interpolateAtCentroid",
    "interpolateAtSample",
    "interpolateAtOffset",
    // Noise Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L16214-L16243
    "noise1",
    "noise2",
    "noise3",
    "noise4",
    // Shader Invocation Control Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L16255-L16276
    "barrier",
    // Shader Memory Control Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L16336-L16382
    "memoryBarrier",
    "memoryBarrierAtomicCounter",
    "memoryBarrierBuffer",
    "memoryBarrierShared",
    "memoryBarrierImage",
    "groupMemoryBarrier",
    // Subpass-Input Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L16451-L16470
    "subpassLoad",
    // Shader Invocation Group Functions, from https://github.com/KhronosGroup/OpenGL-Registry/blob/d00e11dc1a1ffba581d633f21f70202051248d5c/specs/gl/GLSLangSpec.4.60.html#L16483-L16511
    "anyInvocation",
    "allInvocations",
    "allInvocationsEqual",
    //
    // entry point name (should not be shadowed)
    //
    "main",
    // Naga utilities:
    super::MODF_FUNCTION,
    super::FREXP_FUNCTION,
    super::FIRST_INSTANCE_BINDING,
];

/// The above set of reserved keywords, turned into a cached HashSet. This saves
/// significant time during [`Namer::reset`](crate::proc::Namer::reset).
///
/// See <https://github.com/gfx-rs/wgpu/pull/7338> for benchmarks.
pub static RESERVED_KEYWORD_SET: LazyLock<HashSet<&'static str>> = LazyLock::new(|| {
    let mut set = HashSet::default();
    set.reserve(RESERVED_KEYWORDS.len());
    for &word in RESERVED_KEYWORDS {
        set.insert(word);
    }
    set
});
