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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.hardware.tests.expression@1.0;
     18 
     19 interface IExpression {
     20   enum UInt64LiteralTypeGuessing : uint64_t {
     21     noSuffixDec1 = 0,
     22     noSuffixDec2 = 1,
     23     noSuffixDec3 = -1,
     24     noSuffixDec4 = ~0,
     25     noSuffixDec5 = 2147483647,
     26     noSuffixDec6 = -2147483648,
     27     noSuffixDec7 = 2147483648,
     28     noSuffixDec8 = -2147483649,
     29     noSuffixDec9 = ~(-1),
     30     noSuffixHex1 = 0x7fffffff,
     31     noSuffixHex2 = 0x80000000,
     32     noSuffixHex3 = 0xffffffff,
     33     longHex1 = 0xffffffffl,
     34     longHex2 = 0Xfffffffff,
     35     longHex3 = 0x7fffffffffffffff,
     36     longHex4 = 0x8000000000000000,
     37     longHex5 = 0xFFFFFFFFFFFFFFFF,
     38   };
     39 
     40   enum SuffixedLiteralTypeGuessing : int32_t {
     41     // Should be all true / ones.
     42     // dec literals are either int32_t or int64_t
     43     decInt32_1 = (~(-1)) == 0,
     44     decInt32_2 = -(1 << 31) == (1 << 31),
     45     decInt64_1 = (~(-1l)) == 0,
     46     decInt64_2 = (~4294967295) != 0,
     47     decInt64_3 = (~4294967295l) != 0,
     48     decInt64_4 = -(1l << 63) == (1l << 63),
     49     // hex literals could be (u)int32_t or (u)int64_t
     50     // 0x7fffffff is int32_t, hence can be negated
     51     hexInt32_1 = -0x7fffffff < 0,
     52     // 0x80000000 is uint32_t; if it were int32_t then -(int32_t)0x80000000 == (int32_t)0x80000000 > 0
     53     hexUInt32_1 = -0x80000000 > 0,
     54     // 0xFFFFFFFF is uint32_t, not int64_t; if it were int64_t then ~(int64_t)0xFFFFFFFF != 0
     55     hexUInt32_2 = ~0xFFFFFFFF == 0,
     56     // 0x7FFFFFFFFFFFFFFF is int64_t, hence can be negated
     57     hexInt64_1 = -0x7FFFFFFFFFFFFFFF < 0,
     58     // 0x8000000000000000 is uint64_t
     59     hexUInt64_1 = -0x8000000000000000 > 0,
     60   };
     61 
     62   enum Int64LiteralTypeGuessing : int64_t {
     63     // both treated int32_t, sum = (int64_t)(int32_t)0x80000000 = (int64_t)(-2147483648)
     64     noSuffixDec11 = 1 + 0x7fffffff,
     65     // 0x80000000 is uint32_t, sum = (int64_t)(uint32_t)0x7fffffff = (int64_t)(2147483647)
     66     noSuffixDec12 = 0x80000000 - 1,
     67   };
     68 
     69   enum Int32BitShifting : int32_t {
     70     // Shifting for more than 31 bits are undefined. Not tested.
     71     int32BitShift1 = 1 << 31,
     72   };
     73 
     74   enum UInt32BitShifting : uint32_t {
     75     uint32BitShift1 = 1 << 31,
     76   };
     77 
     78   enum Int64BitShifting : int64_t {
     79     int64BitShift1 = 1l << 63,
     80   };
     81 
     82   enum UInt64BitShifting : uint64_t {
     83     uint64BitShift1 = 1l << 63,
     84   };
     85 
     86   enum Precedence : int32_t {
     87     literal = 4,
     88     neg = -4,
     89     literalL = -4L,
     90     hex = 0xffffffff,
     91     hexLong = 0xffffffffl,
     92     hexLong2 = 0xfffffffff,
     93     simpleArithmetic = 4 + 1,
     94     simpleArithmetic2 = 2 + 3 - 4,
     95     simpleArithmetic3 = 2 - 3 + 4,
     96     simpleBoolExpr = 1 == 4,
     97     simpleLogical = 1 && 1,
     98     simpleLogical2 = 1 || 1 && 0,  // && higher than ||
     99     simpleComp = 1 < 2,
    100     boolExpr1 = !((3 != 4 || (2 < 3 <= 3 > 4)) >= 0),
    101     boolExpr = 1 == 7 && !((3 != 4 || (2 < 3 <= 3 > 4)) >= 0),
    102     simpleBitShift = 1 << 2,
    103     simpleBitShift2 = 4 >> 1,
    104     simpleBitShiftNeg = 4 << -1,
    105     simpleArithmeticRightShift = 1 << 31 >> 31,
    106     simpleBitExpr = 1 | 16 >> 2,
    107     simpleBitExpr2 = 0x0f ^ 0x33 & 0x99, // & higher than ^
    108     bitExpr = ~42 & (1 << 3 | 16 >> 2) ^ 7,
    109     arithmeticExpr = 2 + 3 - 4 * -7 / (10 % 3),
    110     messyExpr = 2 + (-3&4 / 7),
    111     paranExpr = (((((1 + 1))))),
    112     ternary = 1?2:3,
    113     ternary2 = 1&&2?3:4,
    114     complicatedTernary2 = 1 - 1 && 2 + 3 || 5 ? 7 * 8 : -3,
    115   };
    116 
    117   enum OperatorSanityCheck : int32_t {
    118     // Should be all true / ones.
    119     plus = (1 + 2) == 3,
    120     minus = (8 - 9) == -1,
    121     product = (9 * 9) == 81,
    122     division = (29 / 3) == 9,
    123     mod = (29 % 3) == 2,
    124     bit_or = (0xC0010000 | 0xF00D) == (0xC001F00D),
    125     bit_or2 = (10 | 6) == 14,
    126     bit_and = (10 & 6) == 2,
    127     bit_xor = (10 ^ 6) == 12,
    128     lt1 = 6 < 10,
    129     lt2 = (10 < 10) == 0,
    130     gt1 = (6 > 10) == 0,
    131     gt2 = (10 > 10) == 0,
    132     gte1 = 19 >= 10,
    133     gte2 = 10 >= 10,
    134     lte1 = 5 <= 10,
    135     lte2 = (19 <= 10) == 0,
    136     ne1 = 19 != 10,
    137     ne2 = (10 != 10) == 0,
    138     lshift = (22 << 1) == 44,
    139     rshift = (11 >> 1) == 5,
    140     logor1 = (1 || 0) == 1,
    141     logor2 = (1 || 1) == 1,
    142     logor3 = (0 || 0) == 0,
    143     logor4 = (0 || 1) == 1,
    144     logand1 = (1 && 0) == 0,
    145     logand2 = (1 && 1) == 1,
    146     logand3 = (0 && 0) == 0,
    147     logand4 = (0 && 1) == 0,
    148   };
    149 
    150   // Tests for enum tags
    151   enum NoElements : uint32_t {};
    152   enum OneElement : uint32_t {A};
    153   enum TwoElement : uint32_t {A,B};
    154   enum TwoCollidingElements : uint32_t {A=1,B=1};
    155   enum ThreeFromInheritance : TwoElement {C};
    156   enum ThreeFromDoubleInheritance : ThreeFromInheritance {};
    157   enum ThreeCollidingFromInheritance : TwoCollidingElements {C};
    158 
    159   enum EnumTagTest : uint32_t {
    160     a = NoElements#len == 0,
    161     b = OneElement#len == 1,
    162     c = TwoElement#len == 2,
    163     d = TwoCollidingElements#len == 2,
    164     e = ThreeFromInheritance#len == 3,
    165     f = ThreeFromDoubleInheritance#len == 3,
    166     g = ThreeCollidingFromInheritance#len == 3,
    167 
    168     // fine to reference current enum as well
    169     h = EnumTagTest#len == 8,
    170   };
    171 
    172   enum Grayscale : int8_t {
    173     WHITE = 126,
    174     GRAY, // 127
    175     DARK_GRAY, // -128
    176     BLACK // -127
    177   };
    178 
    179   enum Color : Grayscale {
    180     RED, // -126
    181     RUBY = 0,
    182     GREEN, // 1
    183     BLUE = 5,
    184     CYAN, // 6
    185     ORANGE, // 7
    186     ROSE = WHITE,
    187   };
    188 
    189   enum Foo1 : int8_t {};
    190   enum Foo2 : Foo1 {};
    191   enum Foo3 : Foo2 {
    192     BAR1, // 0
    193     BAR2 = 10,
    194   };
    195   enum Foo4 : Foo3 {
    196     BAR3, // 11
    197     BAR4 = BAR2 + BAR3 // 21
    198   };
    199 
    200   enum Number : uint8_t {
    201     MAX = 255,
    202     MAX_PLUS_1, // 0
    203     MAX_PLUS_2 // 1
    204   };
    205 
    206   enum Constants : int32_t {
    207     CONST_FOO,
    208     CONST_BAR = 70,
    209     MAX_ARRAY_SIZE = 20,
    210     MAX_ARRAY_SIZE2,
    211     MAX_ARRAY_SIZE3 = MAX_ARRAY_SIZE + MAX_ARRAY_SIZE,
    212     MY_INT32_MAX_MINUS_1 = 0x7FFFFFFE,
    213     MY_INT32_MAX, // 0x7FFFFFFF
    214     MY_INT32_MIN, // 0x80000000
    215     MY_INT32_MIN_PLUS_1, // 0x80000001
    216   };
    217 
    218   @callflow(key=Constants:CONST_FOO + 1)
    219   foo1(int32_t[Constants:CONST_FOO + 1] array);
    220   foo2(int32_t[5 + 8] array);
    221   foo3(int32_t[Constants:MAX_ARRAY_SIZE] array);
    222 };
    223