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      1 
      2 /*
      3  * Copyright 2006 The Android Open Source Project
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 
      9 
     10 #include "SkAnimatorScript.h"
     11 #include "SkAnimateBase.h"
     12 #include "SkAnimateMaker.h"
     13 #include "SkDisplayTypes.h"
     14 #include "SkExtras.h"
     15 #include "SkMemberInfo.h"
     16 #include "SkParse.h"
     17 
     18 static const SkDisplayEnumMap gEnumMaps[] = {
     19     { SkType_AddMode, "indirect|immediate" },
     20     { SkType_Align, "left|center|right" },
     21     { SkType_ApplyMode, "create|immediate|once" },
     22     { SkType_ApplyTransition, "normal|reverse" },
     23     { SkType_BitmapEncoding, "jpeg|png" },
     24     { SkType_BitmapFormat, "none|A1|A8|Index8|RGB16|RGB32" },
     25     { SkType_Boolean, "false|true" },
     26     { SkType_Cap, "butt|round|square" },
     27     { SkType_EventCode, "none|leftSoftKey|rightSoftKey|home|back|send|end|key0|key1|key2|key3|key4|key5|key6|key7|key8|key9|star|hash|up|down|left|right|OK|volUp|volDown|camera" },
     28     { SkType_EventKind, "none|keyChar|keyPress|keyPressUp|mouseDown|mouseDrag|mouseMove|mouseUp|onEnd|onLoad|user" },
     29     { SkType_EventMode, "deferred|immediate" },
     30     { SkType_FillType, "winding|evenOdd" },
     31     { SkType_FilterType, "none|bilinear" },
     32     { SkType_FontStyle, "normal|bold|italic|boldItalic" },
     33     { SkType_FromPathMode, "normal|angle|position" },
     34     { SkType_Join, "miter|round|blunt" },
     35     { SkType_MaskFilterBlurStyle, "normal|solid|outer|inner" },
     36     { SkType_PathDirection, "cw|ccw" },
     37     { SkType_Style, "fill|stroke|strokeAndFill" },
     38     { SkType_TextBoxAlign, "start|center|end" },
     39     { SkType_TextBoxMode, "oneLine|lineBreak" },
     40     { SkType_TileMode, "clamp|repeat|mirror" },
     41     { SkType_Xfermode, "clear|src|dst|srcOver|dstOver|srcIn|dstIn|srcOut|dstOut|"
     42         "srcATop|dstATop|xor|darken|lighten" },
     43 };
     44 
     45 static int gEnumMapCount = SK_ARRAY_COUNT(gEnumMaps);
     46 
     47 SkAnimatorScript::SkAnimatorScript(SkAnimateMaker& maker, SkDisplayable* working, SkDisplayTypes type)
     48     : SkScriptEngine(SkScriptEngine::ToOpType(type)), fMaker(maker), fParent(nullptr), fWorking(working)
     49 {
     50     memberCallBack(EvalMember, (void*) this);
     51     memberFunctionCallBack(EvalMemberFunction, (void*) this);
     52     boxCallBack(Box, (void*) this);
     53     unboxCallBack(Unbox, (void*) &maker);
     54     propertyCallBack(EvalID, (void*) this); // must be first (entries are prepended, will be last), since it never fails
     55     propertyCallBack(Infinity, (void*) this);
     56     propertyCallBack(NaN, (void*) this);
     57     functionCallBack(Eval, (void*) this);
     58     functionCallBack(IsFinite, (void*) this);
     59     functionCallBack(IsNaN, (void*) this);
     60     if (type == SkType_ARGB) {
     61         functionCallBack(EvalRGB, (void*) this);
     62         propertyCallBack(EvalNamedColor, (void*) &maker.fIDs);
     63     }
     64     if (SkDisplayType::IsEnum(&maker, type)) {
     65         // !!! for SpiderMonkey, iterate through the enum values, and map them to globals
     66         const SkDisplayEnumMap& map = GetEnumValues(type);
     67         propertyCallBack(EvalEnum, (void*) map.fValues);
     68     }
     69     for (SkExtras** extraPtr = maker.fExtras.begin(); extraPtr < maker.fExtras.end(); extraPtr++) {
     70         SkExtras* extra = *extraPtr;
     71         if (extra->fExtraCallBack)
     72             propertyCallBack(extra->fExtraCallBack, extra->fExtraStorage);
     73     }
     74 }
     75 
     76 SkAnimatorScript::~SkAnimatorScript() {
     77     for (SkDisplayable** dispPtr = fTrackDisplayable.begin(); dispPtr < fTrackDisplayable.end(); dispPtr++)
     78         delete *dispPtr;
     79 }
     80 
     81 bool SkAnimatorScript::evaluate(const char* original, SkScriptValue* result, SkDisplayTypes type) {
     82         const char* script = original;
     83         bool success = evaluateScript(&script, result);
     84         if (success == false || result->fType != type) {
     85             fMaker.setScriptError(*this);
     86             return false;
     87         }
     88         return true;
     89 }
     90 
     91 bool SkAnimatorScript::Box(void* user, SkScriptValue* scriptValue) {
     92     SkAnimatorScript* engine = (SkAnimatorScript*) user;
     93     SkDisplayTypes type = scriptValue->fType;
     94     SkDisplayable* displayable;
     95     switch (type) {
     96         case SkType_Array: {
     97             SkDisplayArray* boxedValue = new SkDisplayArray(*scriptValue->fOperand.fArray);
     98             displayable = boxedValue;
     99             } break;
    100         case SkType_Boolean: {
    101             SkDisplayBoolean* boxedValue = new SkDisplayBoolean;
    102             displayable = boxedValue;
    103             boxedValue->value = !! scriptValue->fOperand.fS32;
    104             } break;
    105         case SkType_Int: {
    106             SkDisplayInt* boxedValue = new SkDisplayInt;
    107             displayable = boxedValue;
    108             boxedValue->value = scriptValue->fOperand.fS32;
    109             } break;
    110         case SkType_Float: {
    111             SkDisplayFloat* boxedValue = new SkDisplayFloat;
    112             displayable = boxedValue;
    113             boxedValue->value = scriptValue->fOperand.fScalar;
    114             } break;
    115         case SkType_String: {
    116             SkDisplayString* boxedValue = new SkDisplayString(*scriptValue->fOperand.fString);
    117             displayable = boxedValue;
    118             } break;
    119         case SkType_Displayable:
    120             scriptValue->fOperand.fObject = scriptValue->fOperand.fDisplayable;
    121             scriptValue->fType = SkType_Displayable;
    122             return true;
    123         default:
    124             SkASSERT(0);
    125             return false;
    126     }
    127     engine->track(displayable);
    128     scriptValue->fOperand.fObject = displayable;
    129     scriptValue->fType = SkType_Displayable;
    130     return true;
    131 }
    132 
    133 bool SkAnimatorScript::Eval(const char* function, size_t len, SkTDArray<SkScriptValue>& params,
    134         void* eng, SkScriptValue* value) {
    135     if (SK_LITERAL_STR_EQUAL("eval", function, len) == false)
    136         return false;
    137     if (params.count() != 1)
    138         return false;
    139     SkAnimatorScript* host = (SkAnimatorScript*) eng;
    140     SkAnimatorScript engine(host->fMaker, host->fWorking, SkScriptEngine::ToDisplayType(host->fReturnType));
    141     SkScriptValue* scriptValue = params.begin();
    142     bool success = true;
    143     if (scriptValue->fType == SkType_String) {
    144         const char* script = scriptValue->fOperand.fString->c_str();
    145         success = engine.evaluateScript(&script, value);
    146     } else
    147         *value = *scriptValue;
    148     return success;
    149 }
    150 
    151 bool SkAnimatorScript::EvalEnum(const char* token, size_t len, void* callBack, SkScriptValue* value) {
    152     const char* tokens = (const char*) callBack;
    153     value->fType = SkType_Int;
    154     if (MapEnums(tokens, token, len, (int*)&value->fOperand.fS32))
    155         return true;
    156     return false;
    157 }
    158 
    159 bool SkAnimatorScript::EvalID(const char* token, size_t len, void* user, SkScriptValue* value) {
    160     SkAnimatorScript* engine = (SkAnimatorScript*) user;
    161     SkTDict<SkDisplayable*>* ids = &engine->fMaker.fIDs;
    162     SkDisplayable* displayable;
    163     bool success = ids->find(token, len, &displayable);
    164     if (success == false) {
    165         displayable = engine->fWorking;
    166         if (SK_LITERAL_STR_EQUAL("parent", token, len)) {
    167             SkDisplayable* parent = displayable->getParent();
    168             if (parent == nullptr)
    169                 parent = engine->fParent;
    170             if (parent) {
    171                 value->fOperand.fDisplayable = parent;
    172                 value->fType = SkType_Displayable;
    173                 return true;
    174             }
    175         }
    176         if (displayable && EvalMember(token, len, displayable, engine, value))
    177             return true;
    178         value->fOperand.fString = nullptr;
    179         value->fType = SkType_String;
    180     } else {
    181         SkDisplayable* working = engine->fWorking;
    182         value->fOperand.fDisplayable = displayable;
    183         value->fType = SkType_Displayable;
    184         if (displayable->canContainDependents() && working && working->isAnimate()) {
    185             SkAnimateBase* animator = (SkAnimateBase*) working;
    186             if (animator->isDynamic()) {
    187                 SkDisplayDepend* depend = (SkDisplayDepend* ) displayable;
    188                 depend->addDependent(working);
    189             }
    190         }
    191     }
    192     return true;
    193 }
    194 
    195 bool SkAnimatorScript::EvalNamedColor(const char* token, size_t len, void* callback, SkScriptValue* value) {
    196         value->fType = SkType_Int;
    197     if (SkParse::FindNamedColor(token, len, (SkColor*) &value->fOperand.fS32) != nullptr)
    198         return true;
    199     return false;
    200 }
    201 
    202 bool SkAnimatorScript::EvalRGB(const char* function, size_t len, SkTDArray<SkScriptValue>& params,
    203         void* eng, SkScriptValue* value) {
    204     if (SK_LITERAL_STR_EQUAL("rgb", function, len) == false)
    205         return false;
    206     if (params.count() != 3)
    207         return false;
    208     SkScriptEngine* engine = (SkScriptEngine*) eng;
    209     unsigned result = 0xFF000000;
    210     int shift = 16;
    211     for (SkScriptValue* valuePtr = params.begin(); valuePtr < params.end(); valuePtr++) {
    212         engine->convertTo(SkType_Int, valuePtr);
    213         result |= SkClampMax(valuePtr->fOperand.fS32, 255) << shift;
    214         shift -= 8;
    215     }
    216     value->fOperand.fS32 = result;
    217     value->fType = SkType_Int;
    218     return true;
    219 }
    220 
    221 bool SkAnimatorScript::EvalMemberCommon(SkScriptEngine* engine, const SkMemberInfo* info,
    222         SkDisplayable* displayable, SkScriptValue* value) {
    223     SkDisplayTypes original;
    224     SkDisplayTypes type = original = (SkDisplayTypes) info->getType();
    225     if (info->fType == SkType_Array)
    226         type = SkType_Array;
    227     switch (type) {
    228         case SkType_ARGB:
    229             type = SkType_Int;
    230         case SkType_Boolean:
    231         case SkType_Int:
    232         case SkType_MSec:
    233         case SkType_Float:
    234             SkASSERT(info->getCount() == 1);
    235             if (info->fType != SkType_MemberProperty && info->fType != SkType_MemberFunction)
    236                 value->fOperand.fS32 = *(int32_t*) info->memberData(displayable);   // OK for SkScalar too
    237             if (type == SkType_MSec) {
    238                 value->fOperand.fScalar = value->fOperand.fS32 * 0.001f;
    239                 type = SkType_Float;
    240             }
    241             break;
    242         case SkType_String: {
    243             SkString* displayableString;
    244             if (info->fType != SkType_MemberProperty && info->fType != SkType_MemberFunction) {
    245                 info->getString(displayable, &displayableString);
    246                 value->fOperand.fString = new SkString(*displayableString);
    247             }
    248             } break;
    249         case SkType_Array: {
    250             SkASSERT(info->fType != SkType_MemberProperty); // !!! incomplete
    251             SkTDOperandArray* displayableArray = (SkTDOperandArray*) info->memberData(displayable);
    252             if (displayable->getType() == SkType_Array) {
    253                 SkDisplayArray* typedArray = (SkDisplayArray*) displayable;
    254                 original = typedArray->values.getType();
    255             }
    256             SkASSERT(original != SkType_Unknown);
    257             SkTypedArray* array = value->fOperand.fArray = new SkTypedArray(original);
    258             engine->track(array);
    259             int count = displayableArray->count();
    260             if (count > 0) {
    261                 array->setCount(count);
    262                 memcpy(array->begin(), displayableArray->begin(), count * sizeof(SkOperand));
    263             }
    264             } break;
    265         default:
    266             SkASSERT(0); // unimplemented
    267     }
    268     value->fType = type;
    269     return true;
    270 }
    271 
    272 bool SkAnimatorScript::EvalMember(const char* member, size_t len, void* object, void* eng,
    273         SkScriptValue* value) {
    274     SkScriptEngine* engine = (SkScriptEngine*) eng;
    275     SkDisplayable* displayable = (SkDisplayable*) object;
    276     SkString name(member, len);
    277     SkDisplayable* named = displayable->contains(name);
    278     if (named) {
    279         value->fOperand.fDisplayable = named;
    280         value->fType = SkType_Displayable;
    281         return true;
    282     }
    283     const SkMemberInfo* info = displayable->getMember(name.c_str());
    284     if (info == nullptr)
    285         return false;
    286     if (info->fType == SkType_MemberProperty) {
    287         if (displayable->getProperty(info->propertyIndex(), value) == false) {
    288             SkASSERT(0);
    289             return false;
    290         }
    291     }
    292     return EvalMemberCommon(engine, info, displayable, value);
    293 }
    294 
    295 bool SkAnimatorScript::EvalMemberFunction(const char* member, size_t len, void* object,
    296         SkTDArray<SkScriptValue>& params, void* eng, SkScriptValue* value) {
    297     SkScriptEngine* engine = (SkScriptEngine*) eng;
    298     SkDisplayable* displayable = (SkDisplayable*) object;
    299     SkString name(member, len);
    300     const SkMemberInfo* info = displayable->getMember(name.c_str());
    301     SkASSERT(info != nullptr); /* !!! error handling unimplemented */
    302     if (info->fType != SkType_MemberFunction) {
    303         SkASSERT(0);
    304         return false;
    305     }
    306     displayable->executeFunction(displayable, info->functionIndex(), params, info->getType(),
    307         value);
    308     return EvalMemberCommon(engine, info, displayable, value);
    309 }
    310 
    311 bool SkAnimatorScript::EvaluateDisplayable(SkAnimateMaker& maker, SkDisplayable* displayable, const char* script, SkDisplayable** result) {
    312     SkAnimatorScript engine(maker, displayable, SkType_Displayable);
    313     SkScriptValue value;
    314     bool success = engine.evaluate(script, &value, SkType_Displayable);
    315     if (success)
    316         *result = value.fOperand.fDisplayable;
    317     return success;
    318 }
    319 
    320 bool SkAnimatorScript::EvaluateInt(SkAnimateMaker& maker, SkDisplayable* displayable, const char* script, int32_t* result) {
    321     SkAnimatorScript engine(maker, displayable, SkType_Int);
    322     SkScriptValue value;
    323     bool success = engine.evaluate(script, &value, SkType_Int);
    324     if (success)
    325         *result = value.fOperand.fS32;
    326     return success;
    327 }
    328 
    329 bool SkAnimatorScript::EvaluateFloat(SkAnimateMaker& maker, SkDisplayable* displayable, const char* script, SkScalar* result) {
    330     SkAnimatorScript engine(maker, displayable, SkType_Float);
    331     SkScriptValue value;
    332     bool success = engine.evaluate(script, &value, SkType_Float);
    333     if (success)
    334         *result = value.fOperand.fScalar;
    335     return success;
    336 }
    337 
    338 bool SkAnimatorScript::EvaluateString(SkAnimateMaker& maker, SkDisplayable* displayable, const char* script, SkString* result) {
    339     SkAnimatorScript engine(maker, displayable, SkType_String);
    340     SkScriptValue value;
    341     bool success = engine.evaluate(script, &value, SkType_String);
    342     if (success)
    343         result->set(*(value.fOperand.fString));
    344   return success;
    345 }
    346 
    347 bool SkAnimatorScript::EvaluateString(SkAnimateMaker& maker, SkDisplayable* displayable, SkDisplayable* parent, const char* script, SkString* result) {
    348     SkAnimatorScript engine(maker, displayable, SkType_String);
    349     engine.fParent = parent;
    350     SkScriptValue value;
    351     bool success = engine.evaluate(script, &value, SkType_String);
    352     if (success)
    353         result->set(*(value.fOperand.fString));
    354   return success;
    355 }
    356 
    357 const SkDisplayEnumMap& SkAnimatorScript::GetEnumValues(SkDisplayTypes type) {
    358     int index = SkTSearch<SkDisplayTypes>(&gEnumMaps[0].fType, gEnumMapCount, type,
    359         sizeof(SkDisplayEnumMap));
    360     SkASSERT(index >= 0);
    361     return gEnumMaps[index];
    362 }
    363 
    364 bool SkAnimatorScript::Infinity(const char* token, size_t len, void* user, SkScriptValue* value) {
    365     if (SK_LITERAL_STR_EQUAL("Infinity", token, len) == false)
    366         return false;
    367     value->fType = SkType_Float;
    368     value->fOperand.fScalar = SK_ScalarInfinity;
    369     return true;
    370 }
    371 
    372 bool SkAnimatorScript::IsFinite(const char* function, size_t len, SkTDArray<SkScriptValue>& params,
    373         void* eng, SkScriptValue* value) {
    374     if (SK_LITERAL_STR_EQUAL(function, "isFinite", len) == false)
    375         return false;
    376     if (params.count() != 1)
    377         return false;
    378     SkScriptValue* scriptValue = params.begin();
    379     SkDisplayTypes type = scriptValue->fType;
    380     SkScalar scalar = scriptValue->fOperand.fScalar;
    381     value->fType = SkType_Int;
    382     value->fOperand.fS32 = type == SkType_Float ? SkScalarIsNaN(scalar) == false &&
    383         SkScalarAbs(scalar) != SK_ScalarInfinity    : type == SkType_Int;
    384     return true;
    385 }
    386 
    387 bool SkAnimatorScript::IsNaN(const char* function, size_t len, SkTDArray<SkScriptValue>& params,
    388         void* eng, SkScriptValue* value) {
    389     if (SK_LITERAL_STR_EQUAL("isNaN", function, len) == false)
    390         return false;
    391     if (params.count() != 1)
    392         return false;
    393     SkScriptValue* scriptValue = params.begin();
    394     value->fType = SkType_Int;
    395     value->fOperand.fS32 = scriptValue->fType == SkType_Float ? SkScalarIsNaN(scriptValue->fOperand.fScalar) : 0;
    396     return true;
    397 }
    398 
    399 bool SkAnimatorScript::MapEnums(const char* ptr, const char* match, size_t len, int* value) {
    400     int index = 0;
    401     bool more = true;
    402     do {
    403         const char* last = strchr(ptr, '|');
    404         if (last == nullptr) {
    405             last = &ptr[strlen(ptr)];
    406             more = false;
    407         }
    408         size_t length = last - ptr;
    409         if (len == length && strncmp(ptr, match, length) == 0) {
    410             *value = index;
    411             return true;
    412         }
    413         index++;
    414         ptr = last + 1;
    415     } while (more);
    416     return false;
    417 }
    418 
    419 bool SkAnimatorScript::NaN(const char* token, size_t len, void* user, SkScriptValue* value) {
    420     if (SK_LITERAL_STR_EQUAL("NaN", token, len) == false)
    421         return false;
    422     value->fType = SkType_Float;
    423     value->fOperand.fScalar = SK_ScalarNaN;
    424     return true;
    425 }
    426 
    427 #if 0
    428 bool SkAnimatorScript::ObjectToString(void* object, void* user, SkScriptValue* value) {
    429     SkTDict<SkDisplayable*>* ids = (SkTDict<SkDisplayable*>*) user;
    430     SkDisplayable* displayable = (SkDisplayable*) object;
    431     const char* key;
    432     bool success = ids->findKey(displayable, &key);
    433     if (success == false)
    434         return false;
    435     value->fOperand.fString =   new SkString(key);
    436     value->fType = SkType_String;
    437     return true;
    438 }
    439 #endif
    440 
    441 bool SkAnimatorScript::Unbox(void* m, SkScriptValue* scriptValue) {
    442     SkAnimateMaker* maker = (SkAnimateMaker*) m;
    443     SkASSERT((unsigned) scriptValue->fType == (unsigned) SkType_Displayable);
    444     SkDisplayable* displayable = (SkDisplayable*) scriptValue->fOperand.fObject;
    445     SkDisplayTypes type = displayable->getType();
    446     switch (displayable->getType()) {
    447         case SkType_Array: {
    448             SkDisplayArray* boxedValue = (SkDisplayArray*) displayable;
    449             scriptValue->fOperand.fArray = &boxedValue->values;
    450             } break;
    451         case SkType_Boolean: {
    452             SkDisplayBoolean* boxedValue = (SkDisplayBoolean*) displayable;
    453             scriptValue->fOperand.fS32 = boxedValue->value;
    454             } break;
    455         case SkType_Int: {
    456             SkDisplayInt* boxedValue = (SkDisplayInt*) displayable;
    457             scriptValue->fOperand.fS32 = boxedValue->value;
    458             } break;
    459         case SkType_Float: {
    460             SkDisplayFloat* boxedValue = (SkDisplayFloat*) displayable;
    461             scriptValue->fOperand.fScalar = boxedValue->value;
    462             } break;
    463         case SkType_String: {
    464             SkDisplayString* boxedValue = (SkDisplayString*) displayable;
    465             scriptValue->fOperand.fString = new SkString(boxedValue->value);
    466             } break;
    467         default: {
    468             const char* id = nullptr;
    469             SkDEBUGCODE(bool success = ) maker->findKey(displayable, &id);
    470             SkASSERT(success);
    471             scriptValue->fOperand.fString = new SkString(id);
    472             type = SkType_String;
    473         }
    474     }
    475     scriptValue->fType = type;
    476     return true;
    477 }
    478 
    479 #if defined SK_SUPPORT_UNITTEST
    480 
    481 #include "SkAnimator.h"
    482 
    483 static const char scriptTestSetup[]  =
    484 "<screenplay>\n"
    485     "<text id='label' text='defg'/>\n"
    486     "<add id='addLabel' use='label'/>\n"
    487     "<text id='text1' text='test'/>\n"
    488     "<apply scope='addLabel'>\n"
    489         "<set target='label' field='text' to='#script:text1.text'/>\n"
    490     "</apply>\n"
    491     "<apply>\n"
    492         "<paint id='labelPaint'>\n"
    493             "<emboss id='emboss' direction='[1,1,1]'  />\n"
    494         "</paint>\n"
    495         "<animate id='animation' field='direction' target='emboss' from='[1,1,1]' to='[-1,1,1]' dur='1'/>\n"
    496         "<set lval='direction[0]' target='emboss' to='-1' />\n"
    497     "</apply>\n"
    498     "<color id='testColor' color='0 ? rgb(0,0,0) : rgb(255,255,255)' />\n"
    499     "<color id='xColor' color='rgb(12,34,56)' />\n"
    500     "<array id='emptyArray' />\n"
    501     "<array id='intArray' values='[1, 4, 6]' />\n"
    502     "<int id='idx' value='2' />\n"
    503     "<int id='idy' value='2' />\n"
    504     "<string id='alpha' value='abc' />\n"
    505     "<rect id='testRect' left='Math.cos(0)' top='2' right='12' bottom='5' />\n"
    506     "<event id='evt'>\n"
    507         "<input name='x' />\n"
    508         "<apply scope='idy'>\n"
    509             "<set field='value' to='evt.x.int' />\n"
    510         "</apply>\n"
    511     "</event>\n"
    512 "</screenplay>";
    513 
    514 #define DEFAULT_ANSWER   , 0
    515 
    516 static const SkScriptNAnswer scriptTests[]  = {
    517     { "label.text.length == 4", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    518 //  { "labelPaint.measureText(label.text) > 0 ? labelPaint.measureText(label.text)+10 : 40", SkType_Float, 0, SkIntToScalar(0x23)  },
    519     {   "Number.POSITIVE_INFINITY >= Number.MAX_VALUE ? 1 : 0", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    520     {   "Infinity >= Number.MAX_VALUE ? 1 : 0", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    521     {   "Number.NEGATIVE_INFINITY <= -Number.MAX_VALUE ? 1 : 0", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    522     {   "Number.MIN_VALUE > 0 ? 1 : 0", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    523     {   "isNaN(Number.NaN)", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    524     {   "isNaN(NaN)", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    525     {   "Math.sin(0)", SkType_Float, 0, SkIntToScalar(0) DEFAULT_ANSWER },
    526     {   "alpha+alpha", SkType_String, 0, 0, "abcabc" },
    527     {   "intArray[4]", SkType_Unknown DEFAULT_ANSWER DEFAULT_ANSWER DEFAULT_ANSWER },
    528     {   "emptyArray[4]", SkType_Unknown DEFAULT_ANSWER DEFAULT_ANSWER DEFAULT_ANSWER },
    529     {   "idx", SkType_Int, 2 DEFAULT_ANSWER DEFAULT_ANSWER },
    530     {   "intArray.length", SkType_Int, 3 DEFAULT_ANSWER DEFAULT_ANSWER },
    531     {   "intArray.values[0]", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    532     {   "intArray[0]", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    533     {   "idx.value", SkType_Int, 2 DEFAULT_ANSWER DEFAULT_ANSWER },
    534     {   "alpha.value", SkType_String, 0, 0, "abc" },
    535     {   "alpha", SkType_String, 0, 0, "abc" },
    536     {   "alpha.value+alpha.value", SkType_String, 0, 0, "abcabc" },
    537     {   "alpha+idx", SkType_String, 0, 0, "abc2" },
    538     {   "idx+alpha", SkType_String, 0, 0, "2abc" },
    539     {   "intArray[idx]", SkType_Int, 6 DEFAULT_ANSWER DEFAULT_ANSWER },
    540     {   "alpha.slice(1,2)", SkType_String, 0, 0, "b" },
    541     {   "alpha.value.slice(1,2)", SkType_String, 0, 0, "b" },
    542     {   "testRect.left+2", SkType_Float, 0, SkIntToScalar(3) DEFAULT_ANSWER },
    543     {   "0 ? Math.sin(0) : 1", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    544     {   "0 ? intArray[0] : 1", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    545     {   "0 ? intArray.values[0] : 1", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    546     {   "0 ? idx : 1", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    547     {   "0 ? idx.value : 1", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    548     {   "0 ? alpha.slice(1,2) : 1", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    549     {   "0 ? alpha.value.slice(1,2) : 1", SkType_Int, 1 DEFAULT_ANSWER DEFAULT_ANSWER },
    550     { "idy", SkType_Int, 3 DEFAULT_ANSWER DEFAULT_ANSWER }
    551 };
    552 
    553 #define SkScriptNAnswer_testCount   SK_ARRAY_COUNT(scriptTests)
    554 
    555 void SkAnimatorScript::UnitTest() {
    556 #if defined(SK_SUPPORT_UNITTEST)
    557     SkAnimator animator;
    558     SkASSERT(animator.decodeMemory(scriptTestSetup, sizeof(scriptTestSetup)-1));
    559     SkEvent evt;
    560     evt.setString("id", "evt");
    561     evt.setS32("x", 3);
    562     animator.doUserEvent(evt);
    563     // set up animator with memory script above, then run value tests
    564     for (unsigned index = 0; index < SkScriptNAnswer_testCount; index++) {
    565         SkAnimatorScript engine(*animator.fMaker, nullptr, scriptTests[index].fType);
    566         SkScriptValue value;
    567         const char* script = scriptTests[index].fScript;
    568         bool success = engine.evaluateScript(&script, &value);
    569         if (success == false) {
    570             SkDebugf("script failed: %s\n", scriptTests[index].fScript);
    571             SkASSERT(scriptTests[index].fType == SkType_Unknown);
    572             continue;
    573         }
    574         SkASSERT(value.fType == scriptTests[index].fType);
    575         SkScalar error;
    576         switch (value.fType) {
    577             case SkType_Int:
    578                 SkASSERT(value.fOperand.fS32 == scriptTests[index].fIntAnswer);
    579                 break;
    580             case SkType_Float:
    581                 error = SkScalarAbs(value.fOperand.fScalar - scriptTests[index].fScalarAnswer);
    582                 SkASSERT(error < SK_Scalar1 / 10000);
    583                 break;
    584             case SkType_String:
    585                 SkASSERT(strcmp(value.fOperand.fString->c_str(), scriptTests[index].fStringAnswer) == 0);
    586                 break;
    587             default:
    588                 SkASSERT(0);
    589         }
    590     }
    591 #endif
    592 }
    593 
    594 #endif
    595