epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 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 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 9 | |
| 10 | #include "SkScript.h" |
| 11 | #include "SkMath.h" |
| 12 | #include "SkParse.h" |
| 13 | #include "SkString.h" |
| 14 | #include "SkTypedArray.h" |
| 15 | |
| 16 | /* things to do |
| 17 | ? re-enable support for struct literals (e.g., for initializing points or rects) |
| 18 | {x:1, y:2} |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 19 | ? use standard XML / script notation like document.getElementById("canvas"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 20 | finish support for typed arrays |
| 21 | ? allow indexing arrays by string |
| 22 | this could map to the 'name' attribute of a given child of an array |
| 23 | ? allow multiple types in the array |
| 24 | remove SkDisplayType.h // from SkOperand.h |
| 25 | merge type and operand arrays into scriptvalue array |
| 26 | */ |
| 27 | |
| 28 | #ifdef SK_DEBUG |
| 29 | static const char* errorStrings[] = { |
| 30 | "array index of out bounds", // kArrayIndexOutOfBounds |
| 31 | "could not find reference id", // kCouldNotFindReferencedID |
| 32 | "dot operator expects object", // kDotOperatorExpectsObject |
| 33 | "error in array index", // kErrorInArrrayIndex |
| 34 | "error in function parameters", // kErrorInFunctionParameters |
| 35 | "expected array", // kExpectedArray |
| 36 | "expected boolean expression", // kExpectedBooleanExpression |
| 37 | "expected field name", // kExpectedFieldName |
| 38 | "expected hex", // kExpectedHex |
| 39 | "expected int for condition operator", // kExpectedIntForConditionOperator |
| 40 | "expected number", // kExpectedNumber |
| 41 | "expected number for array index", // kExpectedNumberForArrayIndex |
| 42 | "expected operator", // kExpectedOperator |
| 43 | "expected token", // kExpectedToken |
| 44 | "expected token before dot operator", // kExpectedTokenBeforeDotOperator |
| 45 | "expected value", // kExpectedValue |
| 46 | "handle member failed", // kHandleMemberFailed |
| 47 | "handle member function failed", // kHandleMemberFunctionFailed |
| 48 | "handle unbox failed", // kHandleUnboxFailed |
| 49 | "index out of range", // kIndexOutOfRange |
| 50 | "mismatched array brace", // kMismatchedArrayBrace |
| 51 | "mismatched brackets", // kMismatchedBrackets |
| 52 | "no function handler found", // kNoFunctionHandlerFound |
| 53 | "premature end", // kPrematureEnd |
| 54 | "too many parameters", // kTooManyParameters |
| 55 | "type conversion failed", // kTypeConversionFailed |
| 56 | "unterminated string" // kUnterminatedString |
| 57 | }; |
| 58 | #endif |
| 59 | |
| 60 | const SkScriptEngine::SkOperatorAttributes SkScriptEngine::gOpAttributes[] = { |
| 61 | { kNoType, kNoType, kNoBias }, // kUnassigned, |
| 62 | { SkOpType(kInt | kScalar | kString), SkOpType(kInt | kScalar | kString), kTowardsString }, // kAdd |
| 63 | // kAddInt = kAdd, |
| 64 | { kNoType, kNoType, kNoBias }, // kAddScalar, |
| 65 | { kNoType, kNoType, kNoBias }, // kAddString, |
| 66 | { kNoType, kNoType, kNoBias }, // kArrayOp, |
| 67 | { kInt, kInt, kNoBias }, // kBitAnd |
| 68 | { kNoType, kInt, kNoBias }, // kBitNot |
| 69 | { kInt, kInt, kNoBias }, // kBitOr |
| 70 | { SkOpType(kInt | kScalar), SkOpType(kInt | kScalar), kNoBias }, // kDivide |
| 71 | // kDivideInt = kDivide |
| 72 | { kNoType, kNoType, kNoBias }, // kDivideScalar |
| 73 | { kNoType, kNoType, kNoBias }, // kElse |
| 74 | { SkOpType(kInt | kScalar | kString), SkOpType(kInt | kScalar | kString), kTowardsNumber }, // kEqual |
| 75 | // kEqualInt = kEqual |
| 76 | { kNoType, kNoType, kNoBias }, // kEqualScalar |
| 77 | { kNoType, kNoType, kNoBias }, // kEqualString |
| 78 | { kInt, kNoType, kNoBias }, // kFlipOps |
| 79 | { SkOpType(kInt | kScalar | kString), SkOpType(kInt | kScalar | kString), kTowardsNumber }, // kGreaterEqual |
| 80 | // kGreaterEqualInt = kGreaterEqual |
| 81 | { kNoType, kNoType, kNoBias }, // kGreaterEqualScalar |
| 82 | { kNoType, kNoType, kNoBias }, // kGreaterEqualString |
| 83 | { kNoType, kNoType, kNoBias }, // kIf |
| 84 | { kNoType, kInt, kNoBias }, // kLogicalAnd (really, ToBool) |
| 85 | { kNoType, kInt, kNoBias }, // kLogicalNot |
| 86 | { kInt, kInt, kNoBias }, // kLogicalOr |
| 87 | { kNoType, SkOpType(kInt | kScalar), kNoBias }, // kMinus |
| 88 | // kMinusInt = kMinus |
| 89 | { kNoType, kNoType, kNoBias }, // kMinusScalar |
| 90 | { SkOpType(kInt | kScalar), SkOpType(kInt | kScalar), kNoBias }, // kModulo |
| 91 | // kModuloInt = kModulo |
| 92 | { kNoType, kNoType, kNoBias }, // kModuloScalar |
| 93 | { SkOpType(kInt | kScalar), SkOpType(kInt | kScalar), kNoBias }, // kMultiply |
| 94 | // kMultiplyInt = kMultiply |
| 95 | { kNoType, kNoType, kNoBias }, // kMultiplyScalar |
| 96 | { kNoType, kNoType, kNoBias }, // kParen |
| 97 | { kInt, kInt, kNoBias }, // kShiftLeft |
| 98 | { kInt, kInt, kNoBias }, // kShiftRight |
| 99 | { SkOpType(kInt | kScalar), SkOpType(kInt | kScalar), kNoBias }, // kSubtract |
| 100 | // kSubtractInt = kSubtract |
| 101 | { kNoType, kNoType, kNoBias }, // kSubtractScalar |
| 102 | { kInt, kInt, kNoBias } // kXor |
| 103 | }; |
| 104 | |
| 105 | // Note that the real precedence for () [] is '2' |
| 106 | // but here, precedence means 'while an equal or smaller precedence than the current operator |
| 107 | // is on the stack, process it. This allows 3+5*2 to defer the add until after the multiply |
| 108 | // is preformed, since the add precedence is not smaller than multiply. |
| 109 | // But, (3*4 does not process the '(', since brackets are greater than all other precedences |
| 110 | #define kBracketPrecedence 16 |
| 111 | #define kIfElsePrecedence 15 |
| 112 | |
| 113 | const signed char SkScriptEngine::gPrecedence[] = { |
| 114 | -1, // kUnassigned, |
| 115 | 6, // kAdd, |
| 116 | // kAddInt = kAdd, |
| 117 | 6, // kAddScalar, |
| 118 | 6, // kAddString, // string concat |
| 119 | kBracketPrecedence, // kArrayOp, |
| 120 | 10, // kBitAnd, |
| 121 | 4, // kBitNot, |
| 122 | 12, // kBitOr, |
| 123 | 5, // kDivide, |
| 124 | // kDivideInt = kDivide, |
| 125 | 5, // kDivideScalar, |
| 126 | kIfElsePrecedence, // kElse, |
| 127 | 9, // kEqual, |
| 128 | // kEqualInt = kEqual, |
| 129 | 9, // kEqualScalar, |
| 130 | 9, // kEqualString, |
| 131 | -1, // kFlipOps, |
| 132 | 8, // kGreaterEqual, |
| 133 | // kGreaterEqualInt = kGreaterEqual, |
| 134 | 8, // kGreaterEqualScalar, |
| 135 | 8, // kGreaterEqualString, |
| 136 | kIfElsePrecedence, // kIf, |
| 137 | 13, // kLogicalAnd, |
| 138 | 4, // kLogicalNot, |
| 139 | 14, // kLogicalOr, |
| 140 | 4, // kMinus, |
| 141 | // kMinusInt = kMinus, |
| 142 | 4, // kMinusScalar, |
| 143 | 5, // kModulo, |
| 144 | // kModuloInt = kModulo, |
| 145 | 5, // kModuloScalar, |
| 146 | 5, // kMultiply, |
| 147 | // kMultiplyInt = kMultiply, |
| 148 | 5, // kMultiplyScalar, |
| 149 | kBracketPrecedence, // kParen, |
| 150 | 7, // kShiftLeft, |
| 151 | 7, // kShiftRight, // signed |
| 152 | 6, // kSubtract, |
| 153 | // kSubtractInt = kSubtract, |
| 154 | 6, // kSubtractScalar, |
| 155 | 11, // kXor |
| 156 | }; |
| 157 | |
| 158 | static inline bool is_between(int c, int min, int max) |
| 159 | { |
| 160 | return (unsigned)(c - min) <= (unsigned)(max - min); |
| 161 | } |
| 162 | |
| 163 | static inline bool is_ws(int c) |
| 164 | { |
| 165 | return is_between(c, 1, 32); |
| 166 | } |
| 167 | |
| 168 | static int token_length(const char* start) { |
| 169 | char ch = start[0]; |
| 170 | if (! is_between(ch, 'a' , 'z') && ! is_between(ch, 'A', 'Z') && ch != '_' && ch != '$') |
| 171 | return -1; |
| 172 | int length = 0; |
| 173 | do |
| 174 | ch = start[++length]; |
| 175 | while (is_between(ch, 'a' , 'z') || is_between(ch, 'A', 'Z') || is_between(ch, '0', '9') || |
| 176 | ch == '_' || ch == '$'); |
| 177 | return length; |
| 178 | } |
| 179 | |
| 180 | SkScriptEngine::SkScriptEngine(SkOpType returnType) : |
| 181 | fTokenLength(0), fReturnType(returnType), fError(kNoError) |
| 182 | { |
| 183 | SkSuppress noInitialSuppress; |
| 184 | noInitialSuppress.fOperator = kUnassigned; |
| 185 | noInitialSuppress.fOpStackDepth = 0; |
| 186 | noInitialSuppress.fSuppress = false; |
tomhudson@google.com | a7ed3cc | 2011-07-29 13:20:06 +0000 | [diff] [blame] | 187 | noInitialSuppress.fElse = 0; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 188 | fSuppressStack.push(noInitialSuppress); |
| 189 | *fOpStack.push() = kParen; |
| 190 | fTrackArray.appendClear(); |
| 191 | fTrackString.appendClear(); |
| 192 | } |
| 193 | |
| 194 | SkScriptEngine::~SkScriptEngine() { |
| 195 | for (SkString** stringPtr = fTrackString.begin(); stringPtr < fTrackString.end(); stringPtr++) |
| 196 | delete *stringPtr; |
| 197 | for (SkTypedArray** arrayPtr = fTrackArray.begin(); arrayPtr < fTrackArray.end(); arrayPtr++) |
| 198 | delete *arrayPtr; |
| 199 | } |
| 200 | |
| 201 | int SkScriptEngine::arithmeticOp(char ch, char nextChar, bool lastPush) { |
| 202 | SkOp op = kUnassigned; |
| 203 | bool reverseOperands = false; |
| 204 | bool negateResult = false; |
| 205 | int advance = 1; |
| 206 | switch (ch) { |
| 207 | case '+': |
| 208 | // !!! ignoring unary plus as implemented here has the side effect of |
| 209 | // suppressing errors like +"hi" |
| 210 | if (lastPush == false) // unary plus, don't push an operator |
| 211 | goto returnAdv; |
| 212 | op = kAdd; |
| 213 | break; |
| 214 | case '-': |
| 215 | op = lastPush ? kSubtract : kMinus; |
| 216 | break; |
| 217 | case '*': |
| 218 | op = kMultiply; |
| 219 | break; |
| 220 | case '/': |
| 221 | op = kDivide; |
| 222 | break; |
| 223 | case '>': |
| 224 | if (nextChar == '>') { |
| 225 | op = kShiftRight; |
| 226 | goto twoChar; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 227 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 228 | op = kGreaterEqual; |
| 229 | if (nextChar == '=') |
| 230 | goto twoChar; |
| 231 | reverseOperands = negateResult = true; |
| 232 | break; |
| 233 | case '<': |
| 234 | if (nextChar == '<') { |
| 235 | op = kShiftLeft; |
| 236 | goto twoChar; |
| 237 | } |
| 238 | op = kGreaterEqual; |
| 239 | reverseOperands = nextChar == '='; |
| 240 | negateResult = ! reverseOperands; |
| 241 | advance += reverseOperands; |
| 242 | break; |
| 243 | case '=': |
| 244 | if (nextChar == '=') { |
| 245 | op = kEqual; |
| 246 | goto twoChar; |
| 247 | } |
| 248 | break; |
| 249 | case '!': |
| 250 | if (nextChar == '=') { |
| 251 | op = kEqual; |
| 252 | negateResult = true; |
| 253 | twoChar: |
| 254 | advance++; |
| 255 | break; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 256 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 257 | op = kLogicalNot; |
| 258 | break; |
| 259 | case '?': |
| 260 | op = kIf; |
| 261 | break; |
| 262 | case ':': |
| 263 | op = kElse; |
| 264 | break; |
| 265 | case '^': |
| 266 | op = kXor; |
| 267 | break; |
| 268 | case '(': |
| 269 | *fOpStack.push() = kParen; // push even if eval is suppressed |
| 270 | goto returnAdv; |
| 271 | case '&': |
| 272 | SkASSERT(nextChar != '&'); |
| 273 | op = kBitAnd; |
| 274 | break; |
| 275 | case '|': |
| 276 | SkASSERT(nextChar != '|'); |
| 277 | op = kBitOr; |
| 278 | break; |
| 279 | case '%': |
| 280 | op = kModulo; |
| 281 | break; |
| 282 | case '~': |
| 283 | op = kBitNot; |
| 284 | break; |
| 285 | } |
| 286 | if (op == kUnassigned) |
| 287 | return 0; |
| 288 | if (fSuppressStack.top().fSuppress == false) { |
| 289 | signed char precedence = gPrecedence[op]; |
| 290 | do { |
| 291 | int idx = 0; |
| 292 | SkOp compare; |
| 293 | do { |
| 294 | compare = fOpStack.index(idx); |
| 295 | if ((compare & kArtificialOp) == 0) |
| 296 | break; |
| 297 | idx++; |
| 298 | } while (true); |
| 299 | signed char topPrecedence = gPrecedence[compare]; |
| 300 | SkASSERT(topPrecedence != -1); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 301 | if (topPrecedence > precedence || (topPrecedence == precedence && |
senorblanco@chromium.org | 64cc579 | 2011-05-19 19:58:58 +0000 | [diff] [blame] | 302 | gOpAttributes[op].fLeftType == kNoType)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 303 | break; |
| 304 | } |
| 305 | if (processOp() == false) |
| 306 | return 0; // error |
| 307 | } while (true); |
| 308 | if (negateResult) |
| 309 | *fOpStack.push() = (SkOp) (kLogicalNot | kArtificialOp); |
| 310 | fOpStack.push(op); |
| 311 | if (reverseOperands) |
| 312 | *fOpStack.push() = (SkOp) (kFlipOps | kArtificialOp); |
| 313 | } |
| 314 | returnAdv: |
| 315 | return advance; |
| 316 | } |
| 317 | |
| 318 | void SkScriptEngine::boxCallBack(_boxCallBack func, void* userStorage) { |
| 319 | UserCallBack callBack; |
| 320 | callBack.fBoxCallBack = func; |
| 321 | commonCallBack(kBox, callBack, userStorage); |
| 322 | } |
| 323 | |
| 324 | void SkScriptEngine::commonCallBack(CallBackType type, UserCallBack& callBack, void* userStorage) { |
| 325 | callBack.fCallBackType = type; |
| 326 | callBack.fUserStorage = userStorage; |
| 327 | *fUserCallBacks.prepend() = callBack; |
| 328 | } |
| 329 | |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 330 | bool SkScriptEngine::convertParams(SkTDArray<SkScriptValue>& params, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 331 | const SkFunctionParamType* paramTypes, int paramCount) { |
| 332 | if (params.count() > paramCount) { |
| 333 | fError = kTooManyParameters; |
| 334 | return false; // too many parameters passed |
| 335 | } |
| 336 | for (int index = 0; index < params.count(); index++) { |
| 337 | if (convertTo((SkDisplayTypes) paramTypes[index], ¶ms[index]) == false) |
| 338 | return false; |
| 339 | } |
| 340 | return true; |
| 341 | } |
| 342 | |
| 343 | bool SkScriptEngine::convertTo(SkDisplayTypes toType, SkScriptValue* value ) { |
| 344 | SkDisplayTypes type = value->fType; |
| 345 | if (type == toType) |
| 346 | return true; |
| 347 | if (ToOpType(type) == kObject) { |
| 348 | #if 0 // !!! I want object->string to get string from displaystringtype, not id |
| 349 | if (ToOpType(toType) == kString) { |
| 350 | bool success = handleObjectToString(value->fOperand.fObject); |
| 351 | if (success == false) |
| 352 | return false; |
| 353 | SkOpType type; |
| 354 | fTypeStack.pop(&type); |
| 355 | value->fType = ToDisplayType(type); |
| 356 | fOperandStack.pop(&value->fOperand); |
| 357 | return true; |
| 358 | } |
| 359 | #endif |
| 360 | if (handleUnbox(value) == false) { |
| 361 | fError = kHandleUnboxFailed; |
| 362 | return false; |
| 363 | } |
| 364 | return convertTo(toType, value); |
| 365 | } |
| 366 | return ConvertTo(this, toType, value); |
| 367 | } |
| 368 | |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 369 | bool SkScriptEngine::evaluateDot(const char*& script, bool suppressed) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 370 | size_t fieldLength = token_length(++script); // skip dot |
| 371 | if (fieldLength == 0) { |
| 372 | fError = kExpectedFieldName; |
| 373 | return false; |
| 374 | } |
| 375 | const char* field = script; |
| 376 | script += fieldLength; |
| 377 | bool success = handleProperty(suppressed); |
| 378 | if (success == false) { |
| 379 | fError = kCouldNotFindReferencedID; // note: never generated by standard animator plugins |
| 380 | return false; |
| 381 | } |
| 382 | return evaluateDotParam(script, suppressed, field, fieldLength); |
| 383 | } |
| 384 | |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 385 | bool SkScriptEngine::evaluateDotParam(const char*& script, bool suppressed, |
| 386 | const char* field, size_t fieldLength) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 387 | void* object; |
| 388 | if (suppressed) |
| 389 | object = NULL; |
| 390 | else { |
| 391 | if (fTypeStack.top() != kObject) { |
| 392 | fError = kDotOperatorExpectsObject; |
| 393 | return false; |
| 394 | } |
| 395 | object = fOperandStack.top().fObject; |
| 396 | fTypeStack.pop(); |
| 397 | fOperandStack.pop(); |
| 398 | } |
| 399 | char ch; // see if it is a simple member or a function |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 400 | while (is_ws(ch = script[0])) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 401 | script++; |
| 402 | bool success = true; |
| 403 | if (ch != '(') { |
| 404 | if (suppressed == false) { |
| 405 | if ((success = handleMember(field, fieldLength, object)) == false) |
| 406 | fError = kHandleMemberFailed; |
| 407 | } |
| 408 | } else { |
| 409 | SkTDArray<SkScriptValue> params; |
| 410 | *fBraceStack.push() = kFunctionBrace; |
| 411 | success = functionParams(&script, params); |
| 412 | if (success && suppressed == false && |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 413 | (success = handleMemberFunction(field, fieldLength, object, params)) == false) |
| 414 | fError = kHandleMemberFunctionFailed; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 415 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 416 | return success; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 417 | } |
| 418 | |
| 419 | bool SkScriptEngine::evaluateScript(const char** scriptPtr, SkScriptValue* value) { |
| 420 | #ifdef SK_DEBUG |
| 421 | const char** original = scriptPtr; |
| 422 | #endif |
| 423 | bool success; |
| 424 | const char* inner; |
| 425 | if (strncmp(*scriptPtr, "#script:", sizeof("#script:") - 1) == 0) { |
| 426 | *scriptPtr += sizeof("#script:") - 1; |
| 427 | if (fReturnType == kNoType || fReturnType == kString) { |
| 428 | success = innerScript(scriptPtr, value); |
| 429 | if (success == false) |
| 430 | goto end; |
| 431 | inner = value->fOperand.fString->c_str(); |
| 432 | scriptPtr = &inner; |
| 433 | } |
| 434 | } |
| 435 | { |
| 436 | success = innerScript(scriptPtr, value); |
| 437 | if (success == false) |
| 438 | goto end; |
| 439 | const char* script = *scriptPtr; |
| 440 | char ch; |
| 441 | while (is_ws(ch = script[0])) |
| 442 | script++; |
| 443 | if (ch != '\0') { |
| 444 | // error may trigger on scripts like "50,0" that were intended to be written as "[50, 0]" |
| 445 | fError = kPrematureEnd; |
| 446 | success = false; |
| 447 | } |
| 448 | } |
| 449 | end: |
| 450 | #ifdef SK_DEBUG |
| 451 | if (success == false) { |
| 452 | SkDebugf("script failed: %s", *original); |
| 453 | if (fError) |
| 454 | SkDebugf(" %s", errorStrings[fError - 1]); |
| 455 | SkDebugf("\n"); |
| 456 | } |
| 457 | #endif |
| 458 | return success; |
| 459 | } |
| 460 | |
| 461 | void SkScriptEngine::forget(SkTypedArray* array) { |
| 462 | if (array->getType() == SkType_String) { |
| 463 | for (int index = 0; index < array->count(); index++) { |
| 464 | SkString* string = (*array)[index].fString; |
| 465 | int found = fTrackString.find(string); |
| 466 | if (found >= 0) |
| 467 | fTrackString.remove(found); |
| 468 | } |
| 469 | return; |
| 470 | } |
| 471 | if (array->getType() == SkType_Array) { |
| 472 | for (int index = 0; index < array->count(); index++) { |
| 473 | SkTypedArray* child = (*array)[index].fArray; |
| 474 | forget(child); // forgets children of child |
| 475 | int found = fTrackArray.find(child); |
| 476 | if (found >= 0) |
| 477 | fTrackArray.remove(found); |
| 478 | } |
| 479 | } |
| 480 | } |
| 481 | |
| 482 | void SkScriptEngine::functionCallBack(_functionCallBack func, void* userStorage) { |
| 483 | UserCallBack callBack; |
| 484 | callBack.fFunctionCallBack = func; |
| 485 | commonCallBack(kFunction, callBack, userStorage); |
| 486 | } |
| 487 | |
| 488 | bool SkScriptEngine::functionParams(const char** scriptPtr, SkTDArray<SkScriptValue>& params) { |
| 489 | (*scriptPtr)++; // skip open paren |
| 490 | *fOpStack.push() = kParen; |
| 491 | *fBraceStack.push() = kFunctionBrace; |
| 492 | SkBool suppressed = fSuppressStack.top().fSuppress; |
| 493 | do { |
| 494 | SkScriptValue value; |
| 495 | bool success = innerScript(scriptPtr, suppressed ? NULL : &value); |
| 496 | if (success == false) { |
| 497 | fError = kErrorInFunctionParameters; |
| 498 | return false; |
| 499 | } |
| 500 | if (suppressed) |
| 501 | continue; |
| 502 | *params.append() = value; |
| 503 | } while ((*scriptPtr)[-1] == ','); |
| 504 | fBraceStack.pop(); |
| 505 | fOpStack.pop(); // pop paren |
| 506 | (*scriptPtr)++; // advance beyond close paren |
| 507 | return true; |
| 508 | } |
| 509 | |
| 510 | #ifdef SK_DEBUG |
| 511 | bool SkScriptEngine::getErrorString(SkString* str) const { |
| 512 | if (fError) |
| 513 | str->set(errorStrings[fError - 1]); |
| 514 | return fError != 0; |
| 515 | } |
| 516 | #endif |
| 517 | |
| 518 | bool SkScriptEngine::innerScript(const char** scriptPtr, SkScriptValue* value) { |
| 519 | const char* script = *scriptPtr; |
| 520 | char ch; |
| 521 | bool lastPush = false; |
| 522 | bool success = true; |
| 523 | int opBalance = fOpStack.count(); |
| 524 | int baseBrace = fBraceStack.count(); |
| 525 | int suppressBalance = fSuppressStack.count(); |
| 526 | while ((ch = script[0]) != '\0') { |
| 527 | if (is_ws(ch)) { |
| 528 | script++; |
| 529 | continue; |
| 530 | } |
| 531 | SkBool suppressed = fSuppressStack.top().fSuppress; |
| 532 | SkOperand operand; |
| 533 | const char* dotCheck; |
| 534 | if (fBraceStack.count() > baseBrace) { |
| 535 | #if 0 // disable support for struct brace |
| 536 | if (ch == ':') { |
| 537 | SkASSERT(fTokenLength > 0); |
| 538 | SkASSERT(fBraceStack.top() == kStructBrace); |
| 539 | ++script; |
| 540 | SkASSERT(fDisplayable); |
| 541 | SkString token(fToken, fTokenLength); |
| 542 | fTokenLength = 0; |
| 543 | const char* tokenName = token.c_str(); |
| 544 | const SkMemberInfo* tokenInfo SK_INIT_TO_AVOID_WARNING; |
| 545 | if (suppressed == false) { |
| 546 | SkDisplayTypes type = fInfo->getType(); |
| 547 | tokenInfo = SkDisplayType::GetMember(type, &tokenName); |
| 548 | SkASSERT(tokenInfo); |
| 549 | } |
| 550 | SkScriptValue tokenValue; |
| 551 | success = innerScript(&script, &tokenValue); // terminate and return on comma, close brace |
| 552 | SkASSERT(success); |
| 553 | if (suppressed == false) { |
| 554 | if (tokenValue.fType == SkType_Displayable) { |
| 555 | SkASSERT(SkDisplayType::IsDisplayable(tokenInfo->getType())); |
| 556 | fDisplayable->setReference(tokenInfo, tokenValue.fOperand.fDisplayable); |
| 557 | } else { |
| 558 | if (tokenValue.fType != tokenInfo->getType()) { |
| 559 | if (convertTo(tokenInfo->getType(), &tokenValue) == false) |
| 560 | return false; |
| 561 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 562 | tokenInfo->writeValue(fDisplayable, NULL, 0, 0, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 563 | (void*) ((char*) fInfo->memberData(fDisplayable) + tokenInfo->fOffset + fArrayOffset), |
| 564 | tokenInfo->getType(), tokenValue); |
| 565 | } |
| 566 | } |
| 567 | lastPush = false; |
| 568 | continue; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 569 | } else |
| 570 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 571 | if (fBraceStack.top() == kArrayBrace) { |
| 572 | SkScriptValue tokenValue; |
| 573 | success = innerScript(&script, &tokenValue); // terminate and return on comma, close brace |
| 574 | if (success == false) { |
| 575 | fError = kErrorInArrrayIndex; |
| 576 | return false; |
| 577 | } |
| 578 | if (suppressed == false) { |
| 579 | #if 0 // no support for structures for now |
| 580 | if (tokenValue.fType == SkType_Structure) { |
| 581 | fArrayOffset += (int) fInfo->getSize(fDisplayable); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 582 | } else |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 583 | #endif |
| 584 | { |
| 585 | SkDisplayTypes type = ToDisplayType(fReturnType); |
| 586 | if (fReturnType == kNoType) { |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 587 | // !!! short sighted; in the future, allow each returned array component to carry |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 588 | // its own type, and let caller do any needed conversions |
| 589 | if (value->fOperand.fArray->count() == 0) |
| 590 | value->fOperand.fArray->setType(type = tokenValue.fType); |
| 591 | else |
| 592 | type = value->fOperand.fArray->getType(); |
| 593 | } |
| 594 | if (tokenValue.fType != type) { |
| 595 | if (convertTo(type, &tokenValue) == false) |
| 596 | return false; |
| 597 | } |
| 598 | *value->fOperand.fArray->append() = tokenValue.fOperand; |
| 599 | } |
| 600 | } |
| 601 | lastPush = false; |
| 602 | continue; |
| 603 | } else { |
| 604 | if (token_length(script) == 0) { |
| 605 | fError = kExpectedToken; |
| 606 | return false; |
| 607 | } |
| 608 | } |
| 609 | } |
| 610 | if (lastPush != false && fTokenLength > 0) { |
| 611 | if (ch == '(') { |
| 612 | *fBraceStack.push() = kFunctionBrace; |
| 613 | if (handleFunction(&script, SkToBool(suppressed)) == false) |
| 614 | return false; |
| 615 | lastPush = true; |
| 616 | continue; |
| 617 | } else if (ch == '[') { |
| 618 | if (handleProperty(SkToBool(suppressed)) == false) |
| 619 | return false; // note: never triggered by standard animator plugins |
| 620 | if (handleArrayIndexer(&script, SkToBool(suppressed)) == false) |
| 621 | return false; |
| 622 | lastPush = true; |
| 623 | continue; |
| 624 | } else if (ch != '.') { |
| 625 | if (handleProperty(SkToBool(suppressed)) == false) |
| 626 | return false; // note: never triggered by standard animator plugins |
| 627 | lastPush = true; |
| 628 | continue; |
| 629 | } |
| 630 | } |
| 631 | if (ch == '0' && (script[1] & ~0x20) == 'X') { |
| 632 | if (lastPush != false) { |
| 633 | fError = kExpectedOperator; |
| 634 | return false; |
| 635 | } |
| 636 | script += 2; |
| 637 | script = SkParse::FindHex(script, (uint32_t*)&operand.fS32); |
| 638 | if (script == NULL) { |
| 639 | fError = kExpectedHex; |
| 640 | return false; |
| 641 | } |
| 642 | goto intCommon; |
| 643 | } |
| 644 | if (lastPush == false && ch == '.') |
| 645 | goto scalarCommon; |
| 646 | if (ch >= '0' && ch <= '9') { |
| 647 | if (lastPush != false) { |
| 648 | fError = kExpectedOperator; |
| 649 | return false; |
| 650 | } |
| 651 | dotCheck = SkParse::FindS32(script, &operand.fS32); |
| 652 | if (dotCheck[0] != '.') { |
| 653 | script = dotCheck; |
| 654 | intCommon: |
| 655 | if (suppressed == false) |
| 656 | *fTypeStack.push() = kInt; |
| 657 | } else { |
| 658 | scalarCommon: |
| 659 | script = SkParse::FindScalar(script, &operand.fScalar); |
| 660 | if (suppressed == false) |
| 661 | *fTypeStack.push() = kScalar; |
| 662 | } |
| 663 | if (suppressed == false) |
| 664 | fOperandStack.push(operand); |
| 665 | lastPush = true; |
| 666 | continue; |
| 667 | } |
| 668 | int length = token_length(script); |
| 669 | if (length > 0) { |
| 670 | if (lastPush != false) { |
| 671 | fError = kExpectedOperator; |
| 672 | return false; |
| 673 | } |
| 674 | fToken = script; |
| 675 | fTokenLength = length; |
| 676 | script += length; |
| 677 | lastPush = true; |
| 678 | continue; |
| 679 | } |
| 680 | char startQuote = ch; |
| 681 | if (startQuote == '\'' || startQuote == '\"') { |
| 682 | if (lastPush != false) { |
| 683 | fError = kExpectedOperator; |
| 684 | return false; |
| 685 | } |
| 686 | operand.fString = new SkString(); |
| 687 | track(operand.fString); |
| 688 | ++script; |
| 689 | |
| 690 | // <mrr> this is a lot of calls to append() one char at at time |
| 691 | // how hard to preflight script so we know how much to grow fString by? |
| 692 | do { |
| 693 | if (script[0] == '\\') |
| 694 | ++script; |
| 695 | operand.fString->append(script, 1); |
| 696 | ++script; |
| 697 | if (script[0] == '\0') { |
| 698 | fError = kUnterminatedString; |
| 699 | return false; |
| 700 | } |
| 701 | } while (script[0] != startQuote); |
| 702 | ++script; |
| 703 | if (suppressed == false) { |
| 704 | *fTypeStack.push() = kString; |
| 705 | fOperandStack.push(operand); |
| 706 | } |
| 707 | lastPush = true; |
| 708 | continue; |
| 709 | } |
| 710 | ; |
| 711 | if (ch == '.') { |
| 712 | if (fTokenLength == 0) { |
| 713 | SkScriptValue scriptValue; |
| 714 | SkDEBUGCODE(scriptValue.fOperand.fObject = NULL); |
| 715 | int tokenLength = token_length(++script); |
| 716 | const char* token = script; |
| 717 | script += tokenLength; |
| 718 | if (suppressed == false) { |
| 719 | if (fTypeStack.count() == 0) { |
| 720 | fError = kExpectedTokenBeforeDotOperator; |
| 721 | return false; |
| 722 | } |
| 723 | SkOpType topType; |
| 724 | fTypeStack.pop(&topType); |
| 725 | fOperandStack.pop(&scriptValue.fOperand); |
| 726 | scriptValue.fType = ToDisplayType(topType); |
| 727 | handleBox(&scriptValue); |
| 728 | } |
| 729 | success = evaluateDotParam(script, SkToBool(suppressed), token, tokenLength); |
| 730 | if (success == false) |
| 731 | return false; |
| 732 | lastPush = true; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 733 | continue; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 734 | } |
| 735 | // get next token, and evaluate immediately |
| 736 | success = evaluateDot(script, SkToBool(suppressed)); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 737 | if (success == false) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 738 | return false; |
| 739 | lastPush = true; |
| 740 | continue; |
| 741 | } |
| 742 | if (ch == '[') { |
| 743 | if (lastPush == false) { |
| 744 | script++; |
| 745 | *fBraceStack.push() = kArrayBrace; |
| 746 | if (suppressed) |
| 747 | continue; |
| 748 | operand.fArray = value->fOperand.fArray = new SkTypedArray(ToDisplayType(fReturnType)); |
| 749 | track(value->fOperand.fArray); |
| 750 | *fTypeStack.push() = (SkOpType) kArray; |
| 751 | fOperandStack.push(operand); |
| 752 | continue; |
| 753 | } |
| 754 | if (handleArrayIndexer(&script, SkToBool(suppressed)) == false) |
| 755 | return false; |
| 756 | lastPush = true; |
| 757 | continue; |
| 758 | } |
| 759 | #if 0 // structs not supported for now |
| 760 | if (ch == '{') { |
| 761 | if (lastPush == false) { |
| 762 | script++; |
| 763 | *fBraceStack.push() = kStructBrace; |
| 764 | if (suppressed) |
| 765 | continue; |
| 766 | operand.fS32 = 0; |
| 767 | *fTypeStack.push() = (SkOpType) kStruct; |
| 768 | fOperandStack.push(operand); |
| 769 | continue; |
| 770 | } |
| 771 | SkASSERT(0); // braces in other contexts aren't supported yet |
| 772 | } |
| 773 | #endif |
| 774 | if (ch == ')' && fBraceStack.count() > 0) { |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 775 | SkBraceStyle braceStyle = fBraceStack.top(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 776 | if (braceStyle == kFunctionBrace) { |
| 777 | fBraceStack.pop(); |
| 778 | break; |
| 779 | } |
| 780 | } |
| 781 | if (ch == ',' || ch == ']') { |
| 782 | if (ch != ',') { |
| 783 | SkBraceStyle match; |
| 784 | fBraceStack.pop(&match); |
| 785 | if (match != kArrayBrace) { |
| 786 | fError = kMismatchedArrayBrace; |
| 787 | return false; |
| 788 | } |
| 789 | } |
| 790 | script++; |
| 791 | // !!! see if brace or bracket is correct closer |
| 792 | break; |
| 793 | } |
| 794 | char nextChar = script[1]; |
| 795 | int advance = logicalOp(ch, nextChar); |
| 796 | if (advance < 0) // error |
| 797 | return false; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 798 | if (advance == 0) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 799 | advance = arithmeticOp(ch, nextChar, lastPush); |
| 800 | if (advance == 0) // unknown token |
| 801 | return false; |
| 802 | if (advance > 0) |
| 803 | script += advance; |
| 804 | lastPush = ch == ']' || ch == ')'; |
| 805 | } |
| 806 | bool suppressed = SkToBool(fSuppressStack.top().fSuppress); |
| 807 | if (fTokenLength > 0) { |
| 808 | success = handleProperty(suppressed); |
| 809 | if (success == false) |
| 810 | return false; // note: never triggered by standard animator plugins |
| 811 | } |
| 812 | while (fOpStack.count() > opBalance) { // leave open paren |
| 813 | if ((fError = opError()) != kNoError) |
| 814 | return false; |
| 815 | if (processOp() == false) |
| 816 | return false; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 817 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 818 | SkOpType topType = fTypeStack.count() > 0 ? fTypeStack.top() : kNoType; |
| 819 | if (suppressed == false && topType != fReturnType && |
| 820 | topType == kString && fReturnType != kNoType) { // if result is a string, give handle property a chance to convert it to the property value |
| 821 | SkString* string = fOperandStack.top().fString; |
| 822 | fToken = string->c_str(); |
| 823 | fTokenLength = string->size(); |
| 824 | fOperandStack.pop(); |
| 825 | fTypeStack.pop(); |
| 826 | success = handleProperty(SkToBool(fSuppressStack.top().fSuppress)); |
| 827 | if (success == false) { // if it couldn't convert, return string (error?) |
| 828 | SkOperand operand; |
| 829 | operand.fS32 = 0; |
| 830 | *fTypeStack.push() = kString; |
| 831 | operand.fString = string; |
| 832 | fOperandStack.push(operand); |
| 833 | } |
| 834 | } |
| 835 | if (value) { |
| 836 | if (fOperandStack.count() == 0) |
| 837 | return false; |
| 838 | SkASSERT(fOperandStack.count() >= 1); |
| 839 | SkASSERT(fTypeStack.count() >= 1); |
| 840 | fOperandStack.pop(&value->fOperand); |
| 841 | SkOpType type; |
| 842 | fTypeStack.pop(&type); |
| 843 | value->fType = ToDisplayType(type); |
| 844 | // SkASSERT(value->fType != SkType_Unknown); |
| 845 | if (topType != fReturnType && topType == kObject && fReturnType != kNoType) { |
| 846 | if (convertTo(ToDisplayType(fReturnType), value) == false) |
| 847 | return false; |
| 848 | } |
| 849 | } |
| 850 | while (fSuppressStack.count() > suppressBalance) |
| 851 | fSuppressStack.pop(); |
| 852 | *scriptPtr = script; |
| 853 | return true; // no error |
| 854 | } |
| 855 | |
| 856 | void SkScriptEngine::memberCallBack(_memberCallBack member , void* userStorage) { |
| 857 | UserCallBack callBack; |
| 858 | callBack.fMemberCallBack = member; |
| 859 | commonCallBack(kMember, callBack, userStorage); |
| 860 | } |
| 861 | |
| 862 | void SkScriptEngine::memberFunctionCallBack(_memberFunctionCallBack func, void* userStorage) { |
| 863 | UserCallBack callBack; |
| 864 | callBack.fMemberFunctionCallBack = func; |
| 865 | commonCallBack(kMemberFunction, callBack, userStorage); |
| 866 | } |
| 867 | |
| 868 | #if 0 |
| 869 | void SkScriptEngine::objectToStringCallBack(_objectToStringCallBack func, void* userStorage) { |
| 870 | UserCallBack callBack; |
| 871 | callBack.fObjectToStringCallBack = func; |
| 872 | commonCallBack(kObjectToString, callBack, userStorage); |
| 873 | } |
| 874 | #endif |
| 875 | |
| 876 | bool SkScriptEngine::handleArrayIndexer(const char** scriptPtr, bool suppressed) { |
| 877 | SkScriptValue scriptValue; |
| 878 | (*scriptPtr)++; |
| 879 | *fOpStack.push() = kParen; |
| 880 | *fBraceStack.push() = kArrayBrace; |
| 881 | SkOpType saveType = fReturnType; |
| 882 | fReturnType = kInt; |
| 883 | bool success = innerScript(scriptPtr, suppressed == false ? &scriptValue : NULL); |
| 884 | if (success == false) |
| 885 | return false; |
| 886 | fReturnType = saveType; |
| 887 | if (suppressed == false) { |
| 888 | if (convertTo(SkType_Int, &scriptValue) == false) |
| 889 | return false; |
| 890 | int index = scriptValue.fOperand.fS32; |
| 891 | SkScriptValue scriptValue; |
| 892 | SkOpType type; |
| 893 | fTypeStack.pop(&type); |
| 894 | fOperandStack.pop(&scriptValue.fOperand); |
| 895 | scriptValue.fType = ToDisplayType(type); |
| 896 | if (type == kObject) { |
| 897 | success = handleUnbox(&scriptValue); |
| 898 | if (success == false) |
| 899 | return false; |
| 900 | if (ToOpType(scriptValue.fType) != kArray) { |
| 901 | fError = kExpectedArray; |
| 902 | return false; |
| 903 | } |
| 904 | } |
| 905 | *fTypeStack.push() = scriptValue.fOperand.fArray->getOpType(); |
| 906 | // SkASSERT(index >= 0); |
| 907 | if ((unsigned) index >= (unsigned) scriptValue.fOperand.fArray->count()) { |
| 908 | fError = kArrayIndexOutOfBounds; |
| 909 | return false; |
| 910 | } |
| 911 | scriptValue.fOperand = scriptValue.fOperand.fArray->begin()[index]; |
| 912 | fOperandStack.push(scriptValue.fOperand); |
| 913 | } |
| 914 | fOpStack.pop(); // pop paren |
| 915 | return success; |
| 916 | } |
| 917 | |
| 918 | bool SkScriptEngine::handleBox(SkScriptValue* scriptValue) { |
| 919 | bool success = true; |
| 920 | for (UserCallBack* callBack = fUserCallBacks.begin(); callBack < fUserCallBacks.end(); callBack++) { |
| 921 | if (callBack->fCallBackType != kBox) |
| 922 | continue; |
| 923 | success = (*callBack->fBoxCallBack)(callBack->fUserStorage, scriptValue); |
| 924 | if (success) { |
| 925 | fOperandStack.push(scriptValue->fOperand); |
| 926 | *fTypeStack.push() = ToOpType(scriptValue->fType); |
| 927 | goto done; |
| 928 | } |
| 929 | } |
| 930 | done: |
| 931 | return success; |
| 932 | } |
| 933 | |
| 934 | bool SkScriptEngine::handleFunction(const char** scriptPtr, bool suppressed) { |
| 935 | SkScriptValue callbackResult; |
| 936 | SkTDArray<SkScriptValue> params; |
| 937 | SkString functionName(fToken, fTokenLength); |
| 938 | fTokenLength = 0; |
| 939 | bool success = functionParams(scriptPtr, params); |
| 940 | if (success == false) |
| 941 | goto done; |
| 942 | if (suppressed == true) |
| 943 | return true; |
| 944 | { |
| 945 | for (UserCallBack* callBack = fUserCallBacks.begin(); callBack < fUserCallBacks.end(); callBack++) { |
| 946 | if (callBack->fCallBackType != kFunction) |
| 947 | continue; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 948 | success = (*callBack->fFunctionCallBack)(functionName.c_str(), functionName.size(), params, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 949 | callBack->fUserStorage, &callbackResult); |
| 950 | if (success) { |
| 951 | fOperandStack.push(callbackResult.fOperand); |
| 952 | *fTypeStack.push() = ToOpType(callbackResult.fType); |
| 953 | goto done; |
| 954 | } |
| 955 | } |
| 956 | } |
| 957 | fError = kNoFunctionHandlerFound; |
| 958 | return false; |
| 959 | done: |
| 960 | return success; |
| 961 | } |
| 962 | |
| 963 | bool SkScriptEngine::handleMember(const char* field, size_t len, void* object) { |
| 964 | SkScriptValue callbackResult; |
| 965 | bool success = true; |
| 966 | for (UserCallBack* callBack = fUserCallBacks.begin(); callBack < fUserCallBacks.end(); callBack++) { |
| 967 | if (callBack->fCallBackType != kMember) |
| 968 | continue; |
| 969 | success = (*callBack->fMemberCallBack)(field, len, object, callBack->fUserStorage, &callbackResult); |
| 970 | if (success) { |
| 971 | if (callbackResult.fType == SkType_String) |
| 972 | track(callbackResult.fOperand.fString); |
| 973 | fOperandStack.push(callbackResult.fOperand); |
| 974 | *fTypeStack.push() = ToOpType(callbackResult.fType); |
| 975 | goto done; |
| 976 | } |
| 977 | } |
| 978 | return false; |
| 979 | done: |
| 980 | return success; |
| 981 | } |
| 982 | |
| 983 | bool SkScriptEngine::handleMemberFunction(const char* field, size_t len, void* object, SkTDArray<SkScriptValue>& params) { |
| 984 | SkScriptValue callbackResult; |
| 985 | bool success = true; |
| 986 | for (UserCallBack* callBack = fUserCallBacks.begin(); callBack < fUserCallBacks.end(); callBack++) { |
| 987 | if (callBack->fCallBackType != kMemberFunction) |
| 988 | continue; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 989 | success = (*callBack->fMemberFunctionCallBack)(field, len, object, params, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 990 | callBack->fUserStorage, &callbackResult); |
| 991 | if (success) { |
| 992 | if (callbackResult.fType == SkType_String) |
| 993 | track(callbackResult.fOperand.fString); |
| 994 | fOperandStack.push(callbackResult.fOperand); |
| 995 | *fTypeStack.push() = ToOpType(callbackResult.fType); |
| 996 | goto done; |
| 997 | } |
| 998 | } |
| 999 | return false; |
| 1000 | done: |
| 1001 | return success; |
| 1002 | } |
| 1003 | |
| 1004 | #if 0 |
| 1005 | bool SkScriptEngine::handleObjectToString(void* object) { |
| 1006 | SkScriptValue callbackResult; |
| 1007 | bool success = true; |
| 1008 | for (UserCallBack* callBack = fUserCallBacks.begin(); callBack < fUserCallBacks.end(); callBack++) { |
| 1009 | if (callBack->fCallBackType != kObjectToString) |
| 1010 | continue; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1011 | success = (*callBack->fObjectToStringCallBack)(object, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1012 | callBack->fUserStorage, &callbackResult); |
| 1013 | if (success) { |
| 1014 | if (callbackResult.fType == SkType_String) |
| 1015 | track(callbackResult.fOperand.fString); |
| 1016 | fOperandStack.push(callbackResult.fOperand); |
| 1017 | *fTypeStack.push() = ToOpType(callbackResult.fType); |
| 1018 | goto done; |
| 1019 | } |
| 1020 | } |
| 1021 | return false; |
| 1022 | done: |
| 1023 | return success; |
| 1024 | } |
| 1025 | #endif |
| 1026 | |
| 1027 | bool SkScriptEngine::handleProperty(bool suppressed) { |
| 1028 | SkScriptValue callbackResult; |
| 1029 | bool success = true; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1030 | if (suppressed) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1031 | goto done; |
| 1032 | success = false; // note that with standard animator-script plugins, callback never returns false |
| 1033 | { |
| 1034 | for (UserCallBack* callBack = fUserCallBacks.begin(); callBack < fUserCallBacks.end(); callBack++) { |
| 1035 | if (callBack->fCallBackType != kProperty) |
| 1036 | continue; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1037 | success = (*callBack->fPropertyCallBack)(fToken, fTokenLength, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1038 | callBack->fUserStorage, &callbackResult); |
| 1039 | if (success) { |
| 1040 | if (callbackResult.fType == SkType_String && callbackResult.fOperand.fString == NULL) { |
| 1041 | callbackResult.fOperand.fString = new SkString(fToken, fTokenLength); |
| 1042 | track(callbackResult.fOperand.fString); |
| 1043 | } |
| 1044 | fOperandStack.push(callbackResult.fOperand); |
| 1045 | *fTypeStack.push() = ToOpType(callbackResult.fType); |
| 1046 | goto done; |
| 1047 | } |
| 1048 | } |
| 1049 | } |
| 1050 | done: |
| 1051 | fTokenLength = 0; |
| 1052 | return success; |
| 1053 | } |
| 1054 | |
| 1055 | bool SkScriptEngine::handleUnbox(SkScriptValue* scriptValue) { |
| 1056 | bool success = true; |
| 1057 | for (UserCallBack* callBack = fUserCallBacks.begin(); callBack < fUserCallBacks.end(); callBack++) { |
| 1058 | if (callBack->fCallBackType != kUnbox) |
| 1059 | continue; |
| 1060 | success = (*callBack->fUnboxCallBack)(callBack->fUserStorage, scriptValue); |
| 1061 | if (success) { |
| 1062 | if (scriptValue->fType == SkType_String) |
| 1063 | track(scriptValue->fOperand.fString); |
| 1064 | goto done; |
| 1065 | } |
| 1066 | } |
| 1067 | return false; |
| 1068 | done: |
| 1069 | return success; |
| 1070 | } |
| 1071 | |
| 1072 | // note that entire expression is treated as if it were enclosed in parens |
| 1073 | // an open paren is always the first thing in the op stack |
| 1074 | |
| 1075 | int SkScriptEngine::logicalOp(char ch, char nextChar) { |
| 1076 | int advance = 1; |
| 1077 | SkOp match; |
| 1078 | signed char precedence; |
| 1079 | switch (ch) { |
| 1080 | case ')': |
| 1081 | match = kParen; |
| 1082 | break; |
| 1083 | case ']': |
| 1084 | match = kArrayOp; |
| 1085 | break; |
| 1086 | case '?': |
| 1087 | match = kIf; |
| 1088 | break; |
| 1089 | case ':': |
| 1090 | match = kElse; |
| 1091 | break; |
| 1092 | case '&': |
| 1093 | if (nextChar != '&') |
| 1094 | goto noMatch; |
| 1095 | match = kLogicalAnd; |
| 1096 | advance = 2; |
| 1097 | break; |
| 1098 | case '|': |
| 1099 | if (nextChar != '|') |
| 1100 | goto noMatch; |
| 1101 | match = kLogicalOr; |
| 1102 | advance = 2; |
| 1103 | break; |
| 1104 | default: |
| 1105 | noMatch: |
| 1106 | return 0; |
| 1107 | } |
| 1108 | SkSuppress suppress; |
| 1109 | precedence = gPrecedence[match]; |
| 1110 | if (fSuppressStack.top().fSuppress) { |
| 1111 | if (fSuppressStack.top().fOpStackDepth < fOpStack.count()) { |
| 1112 | SkOp topOp = fOpStack.top(); |
| 1113 | if (gPrecedence[topOp] <= precedence) |
| 1114 | fOpStack.pop(); |
| 1115 | goto goHome; |
| 1116 | } |
| 1117 | bool changedPrecedence = gPrecedence[fSuppressStack.top().fOperator] < precedence; |
| 1118 | if (changedPrecedence) |
| 1119 | fSuppressStack.pop(); |
| 1120 | if (precedence == kIfElsePrecedence) { |
| 1121 | if (match == kIf) { |
| 1122 | if (changedPrecedence) |
| 1123 | fOpStack.pop(); |
| 1124 | else |
| 1125 | *fOpStack.push() = kIf; |
| 1126 | } else { |
| 1127 | if (fSuppressStack.top().fOpStackDepth == fOpStack.count()) { |
| 1128 | goto flipSuppress; |
| 1129 | } |
| 1130 | fOpStack.pop(); |
| 1131 | } |
| 1132 | } |
| 1133 | if (changedPrecedence == false) |
| 1134 | goto goHome; |
| 1135 | } |
| 1136 | while (gPrecedence[fOpStack.top() & ~kArtificialOp] < precedence) { |
| 1137 | if (processOp() == false) |
| 1138 | return false; |
| 1139 | } |
| 1140 | if (fSuppressStack.top().fOpStackDepth > fOpStack.count()) |
| 1141 | fSuppressStack.pop(); |
| 1142 | switch (match) { |
| 1143 | case kParen: |
| 1144 | case kArrayOp: |
| 1145 | if (fOpStack.count() <= 1 || fOpStack.top() != match) { |
| 1146 | fError = kMismatchedBrackets; |
| 1147 | return -1; |
| 1148 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1149 | if (match == kParen) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1150 | fOpStack.pop(); |
| 1151 | else { |
| 1152 | SkOpType indexType; |
| 1153 | fTypeStack.pop(&indexType); |
| 1154 | if (indexType != kInt && indexType != kScalar) { |
| 1155 | fError = kExpectedNumberForArrayIndex; // (although, could permit strings eventually) |
| 1156 | return -1; |
| 1157 | } |
| 1158 | SkOperand indexOperand; |
| 1159 | fOperandStack.pop(&indexOperand); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1160 | int index = indexType == kScalar ? SkScalarFloor(indexOperand.fScalar) : |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1161 | indexOperand.fS32; |
| 1162 | SkOpType arrayType; |
| 1163 | fTypeStack.pop(&arrayType); |
| 1164 | if ((unsigned)arrayType != (unsigned)kArray) { |
| 1165 | fError = kExpectedArray; |
| 1166 | return -1; |
| 1167 | } |
| 1168 | SkOperand arrayOperand; |
| 1169 | fOperandStack.pop(&arrayOperand); |
| 1170 | SkTypedArray* array = arrayOperand.fArray; |
| 1171 | SkOperand operand; |
| 1172 | if (array->getIndex(index, &operand) == false) { |
| 1173 | fError = kIndexOutOfRange; |
| 1174 | return -1; |
| 1175 | } |
| 1176 | SkOpType resultType = array->getOpType(); |
| 1177 | fTypeStack.push(resultType); |
| 1178 | fOperandStack.push(operand); |
| 1179 | } |
| 1180 | break; |
| 1181 | case kIf: { |
| 1182 | SkScriptValue ifValue; |
| 1183 | SkOpType ifType; |
| 1184 | fTypeStack.pop(&ifType); |
| 1185 | ifValue.fType = ToDisplayType(ifType); |
| 1186 | fOperandStack.pop(&ifValue.fOperand); |
| 1187 | if (convertTo(SkType_Int, &ifValue) == false) |
| 1188 | return -1; |
| 1189 | if (ifValue.fType != SkType_Int) { |
| 1190 | fError = kExpectedIntForConditionOperator; |
| 1191 | return -1; |
| 1192 | } |
| 1193 | suppress.fSuppress = ifValue.fOperand.fS32 == 0; |
| 1194 | suppress.fOperator = kIf; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1195 | suppress.fOpStackDepth = fOpStack.count(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1196 | suppress.fElse = false; |
| 1197 | fSuppressStack.push(suppress); |
| 1198 | // if left is true, do only up to colon |
| 1199 | // if left is false, do only after colon |
| 1200 | } break; |
| 1201 | case kElse: |
| 1202 | flipSuppress: |
reed@google.com | 21b1c5c | 2011-05-23 12:44:44 +0000 | [diff] [blame] | 1203 | if (fSuppressStack.top().fElse) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1204 | fSuppressStack.pop(); |
| 1205 | fSuppressStack.top().fElse = true; |
| 1206 | fSuppressStack.top().fSuppress ^= true; |
| 1207 | // flip last do / don't do consideration from last '?' |
| 1208 | break; |
| 1209 | case kLogicalAnd: |
| 1210 | case kLogicalOr: { |
| 1211 | if (fTypeStack.top() != kInt) { |
| 1212 | fError = kExpectedBooleanExpression; |
| 1213 | return -1; |
| 1214 | } |
| 1215 | int32_t topInt = fOperandStack.top().fS32; |
| 1216 | if (fOpStack.top() != kLogicalAnd) |
| 1217 | *fOpStack.push() = kLogicalAnd; // really means 'to bool', and is appropriate for 'or' |
| 1218 | if (match == kLogicalOr ? topInt != 0 : topInt == 0) { |
| 1219 | suppress.fSuppress = true; |
| 1220 | suppress.fOperator = match; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1221 | suppress.fOpStackDepth = fOpStack.count(); |
tomhudson@google.com | a7ed3cc | 2011-07-29 13:20:06 +0000 | [diff] [blame] | 1222 | suppress.fElse = false; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1223 | fSuppressStack.push(suppress); |
| 1224 | } else { |
| 1225 | fTypeStack.pop(); |
| 1226 | fOperandStack.pop(); |
| 1227 | } |
| 1228 | } break; |
| 1229 | default: |
| 1230 | SkASSERT(0); |
| 1231 | } |
| 1232 | goHome: |
| 1233 | return advance; |
| 1234 | } |
| 1235 | |
| 1236 | SkScriptEngine::Error SkScriptEngine::opError() { |
| 1237 | int opCount = fOpStack.count(); |
| 1238 | int operandCount = fOperandStack.count(); |
| 1239 | if (opCount == 0) { |
| 1240 | if (operandCount != 1) |
| 1241 | return kExpectedOperator; |
| 1242 | return kNoError; |
| 1243 | } |
| 1244 | SkOp op = (SkOp) (fOpStack.top() & ~kArtificialOp); |
| 1245 | const SkOperatorAttributes* attributes = &gOpAttributes[op]; |
| 1246 | if (attributes->fLeftType != kNoType && operandCount < 2) |
| 1247 | return kExpectedValue; |
| 1248 | if (attributes->fLeftType == kNoType && operandCount < 1) |
| 1249 | return kExpectedValue; |
| 1250 | return kNoError; |
| 1251 | } |
| 1252 | |
| 1253 | bool SkScriptEngine::processOp() { |
| 1254 | SkOp op; |
| 1255 | fOpStack.pop(&op); |
| 1256 | op = (SkOp) (op & ~kArtificialOp); |
| 1257 | const SkOperatorAttributes* attributes = &gOpAttributes[op]; |
| 1258 | SkOpType type2; |
| 1259 | fTypeStack.pop(&type2); |
| 1260 | SkOpType type1 = type2; |
| 1261 | SkOperand operand2; |
| 1262 | fOperandStack.pop(&operand2); |
| 1263 | SkOperand operand1 = operand2; // !!! not really needed, suppresses warning |
| 1264 | if (attributes->fLeftType != kNoType) { |
| 1265 | fTypeStack.pop(&type1); |
| 1266 | fOperandStack.pop(&operand1); |
| 1267 | if (op == kFlipOps) { |
| 1268 | SkTSwap(type1, type2); |
| 1269 | SkTSwap(operand1, operand2); |
| 1270 | fOpStack.pop(&op); |
| 1271 | op = (SkOp) (op & ~kArtificialOp); |
| 1272 | attributes = &gOpAttributes[op]; |
| 1273 | } |
| 1274 | if (type1 == kObject && (type1 & attributes->fLeftType) == 0) { |
| 1275 | SkScriptValue val; |
| 1276 | val.fType = ToDisplayType(type1); |
| 1277 | val.fOperand = operand1; |
| 1278 | bool success = handleUnbox(&val); |
| 1279 | if (success == false) |
| 1280 | return false; |
| 1281 | type1 = ToOpType(val.fType); |
| 1282 | operand1 = val.fOperand; |
| 1283 | } |
| 1284 | } |
| 1285 | if (type2 == kObject && (type2 & attributes->fLeftType) == 0) { |
| 1286 | SkScriptValue val; |
| 1287 | val.fType = ToDisplayType(type2); |
| 1288 | val.fOperand = operand2; |
| 1289 | bool success = handleUnbox(&val); |
| 1290 | if (success == false) |
| 1291 | return false; |
| 1292 | type2 = ToOpType(val.fType); |
| 1293 | operand2 = val.fOperand; |
| 1294 | } |
| 1295 | if (attributes->fLeftType != kNoType) { |
| 1296 | if (type1 != type2) { |
| 1297 | if ((attributes->fLeftType & kString) && attributes->fBias & kTowardsString && ((type1 | type2) & kString)) { |
| 1298 | if (type1 == kInt || type1 == kScalar) { |
| 1299 | convertToString(operand1, type1 == kInt ? SkType_Int : SkType_Float); |
| 1300 | type1 = kString; |
| 1301 | } |
| 1302 | if (type2 == kInt || type2 == kScalar) { |
| 1303 | convertToString(operand2, type2 == kInt ? SkType_Int : SkType_Float); |
| 1304 | type2 = kString; |
| 1305 | } |
| 1306 | } else if (attributes->fLeftType & kScalar && ((type1 | type2) & kScalar)) { |
| 1307 | if (type1 == kInt) { |
| 1308 | operand1.fScalar = IntToScalar(operand1.fS32); |
| 1309 | type1 = kScalar; |
| 1310 | } |
| 1311 | if (type2 == kInt) { |
| 1312 | operand2.fScalar = IntToScalar(operand2.fS32); |
| 1313 | type2 = kScalar; |
| 1314 | } |
| 1315 | } |
| 1316 | } |
| 1317 | if ((type1 & attributes->fLeftType) == 0 || type1 != type2) { |
| 1318 | if (type1 == kString) { |
| 1319 | const char* result = SkParse::FindScalar(operand1.fString->c_str(), &operand1.fScalar); |
| 1320 | if (result == NULL) { |
| 1321 | fError = kExpectedNumber; |
| 1322 | return false; |
| 1323 | } |
| 1324 | type1 = kScalar; |
| 1325 | } |
| 1326 | if (type1 == kScalar && (attributes->fLeftType == kInt || type2 == kInt)) { |
| 1327 | operand1.fS32 = SkScalarFloor(operand1.fScalar); |
| 1328 | type1 = kInt; |
| 1329 | } |
| 1330 | } |
| 1331 | } |
| 1332 | if ((type2 & attributes->fRightType) == 0 || type1 != type2) { |
| 1333 | if (type2 == kString) { |
| 1334 | const char* result = SkParse::FindScalar(operand2.fString->c_str(), &operand2.fScalar); |
| 1335 | if (result == NULL) { |
| 1336 | fError = kExpectedNumber; |
| 1337 | return false; |
| 1338 | } |
| 1339 | type2 = kScalar; |
| 1340 | } |
| 1341 | if (type2 == kScalar && (attributes->fRightType == kInt || type1 == kInt)) { |
| 1342 | operand2.fS32 = SkScalarFloor(operand2.fScalar); |
| 1343 | type2 = kInt; |
| 1344 | } |
| 1345 | } |
| 1346 | if (type2 == kScalar) |
| 1347 | op = (SkOp) (op + 1); |
| 1348 | else if (type2 == kString) |
| 1349 | op = (SkOp) (op + 2); |
| 1350 | switch(op) { |
| 1351 | case kAddInt: |
| 1352 | operand2.fS32 += operand1.fS32; |
| 1353 | break; |
| 1354 | case kAddScalar: |
| 1355 | operand2.fScalar += operand1.fScalar; |
| 1356 | break; |
| 1357 | case kAddString: |
| 1358 | if (fTrackString.find(operand1.fString) < 0) { |
| 1359 | operand1.fString = SkNEW_ARGS(SkString, (*operand1.fString)); |
| 1360 | track(operand1.fString); |
| 1361 | } |
| 1362 | operand1.fString->append(*operand2.fString); |
| 1363 | operand2 = operand1; |
| 1364 | break; |
| 1365 | case kBitAnd: |
| 1366 | operand2.fS32 &= operand1.fS32; |
| 1367 | break; |
| 1368 | case kBitNot: |
| 1369 | operand2.fS32 = ~operand2.fS32; |
| 1370 | break; |
| 1371 | case kBitOr: |
| 1372 | operand2.fS32 |= operand1.fS32; |
| 1373 | break; |
| 1374 | case kDivideInt: |
| 1375 | if (operand2.fS32 == 0) { |
| 1376 | operand2.fS32 = operand1.fS32 == 0 ? SK_NaN32 : operand1.fS32 > 0 ? SK_MaxS32 : -SK_MaxS32; |
| 1377 | break; |
| 1378 | } else { |
| 1379 | int32_t original = operand2.fS32; |
| 1380 | operand2.fS32 = operand1.fS32 / operand2.fS32; |
| 1381 | if (original * operand2.fS32 == operand1.fS32) |
| 1382 | break; // integer divide was good enough |
| 1383 | operand2.fS32 = original; |
| 1384 | type2 = kScalar; |
| 1385 | } |
| 1386 | case kDivideScalar: |
| 1387 | if (operand2.fScalar == 0) |
| 1388 | operand2.fScalar = operand1.fScalar == 0 ? SK_ScalarNaN : operand1.fScalar > 0 ? SK_ScalarMax : -SK_ScalarMax; |
| 1389 | else |
| 1390 | operand2.fScalar = SkScalarDiv(operand1.fScalar, operand2.fScalar); |
| 1391 | break; |
| 1392 | case kEqualInt: |
| 1393 | operand2.fS32 = operand1.fS32 == operand2.fS32; |
| 1394 | break; |
| 1395 | case kEqualScalar: |
| 1396 | operand2.fS32 = operand1.fScalar == operand2.fScalar; |
| 1397 | type2 = kInt; |
| 1398 | break; |
| 1399 | case kEqualString: |
| 1400 | operand2.fS32 = *operand1.fString == *operand2.fString; |
| 1401 | type2 = kInt; |
| 1402 | break; |
| 1403 | case kGreaterEqualInt: |
| 1404 | operand2.fS32 = operand1.fS32 >= operand2.fS32; |
| 1405 | break; |
| 1406 | case kGreaterEqualScalar: |
| 1407 | operand2.fS32 = operand1.fScalar >= operand2.fScalar; |
| 1408 | type2 = kInt; |
| 1409 | break; |
| 1410 | case kGreaterEqualString: |
| 1411 | operand2.fS32 = strcmp(operand1.fString->c_str(), operand2.fString->c_str()) >= 0; |
| 1412 | type2 = kInt; |
| 1413 | break; |
| 1414 | case kLogicalAnd: |
| 1415 | operand2.fS32 = !! operand2.fS32; // really, ToBool |
| 1416 | break; |
| 1417 | case kLogicalNot: |
| 1418 | operand2.fS32 = ! operand2.fS32; |
| 1419 | break; |
| 1420 | case kLogicalOr: |
| 1421 | SkASSERT(0); // should have already been processed |
| 1422 | break; |
| 1423 | case kMinusInt: |
| 1424 | operand2.fS32 = -operand2.fS32; |
| 1425 | break; |
| 1426 | case kMinusScalar: |
| 1427 | operand2.fScalar = -operand2.fScalar; |
| 1428 | break; |
| 1429 | case kModuloInt: |
| 1430 | operand2.fS32 = operand1.fS32 % operand2.fS32; |
| 1431 | break; |
| 1432 | case kModuloScalar: |
| 1433 | operand2.fScalar = SkScalarMod(operand1.fScalar, operand2.fScalar); |
| 1434 | break; |
| 1435 | case kMultiplyInt: |
| 1436 | operand2.fS32 *= operand1.fS32; |
| 1437 | break; |
| 1438 | case kMultiplyScalar: |
| 1439 | operand2.fScalar = SkScalarMul(operand1.fScalar, operand2.fScalar); |
| 1440 | break; |
| 1441 | case kShiftLeft: |
| 1442 | operand2.fS32 = operand1.fS32 << operand2.fS32; |
| 1443 | break; |
| 1444 | case kShiftRight: |
| 1445 | operand2.fS32 = operand1.fS32 >> operand2.fS32; |
| 1446 | break; |
| 1447 | case kSubtractInt: |
| 1448 | operand2.fS32 = operand1.fS32 - operand2.fS32; |
| 1449 | break; |
| 1450 | case kSubtractScalar: |
| 1451 | operand2.fScalar = operand1.fScalar - operand2.fScalar; |
| 1452 | break; |
| 1453 | case kXor: |
| 1454 | operand2.fS32 ^= operand1.fS32; |
| 1455 | break; |
| 1456 | default: |
| 1457 | SkASSERT(0); |
| 1458 | } |
| 1459 | fTypeStack.push(type2); |
| 1460 | fOperandStack.push(operand2); |
| 1461 | return true; |
| 1462 | } |
| 1463 | |
| 1464 | void SkScriptEngine::propertyCallBack(_propertyCallBack prop, void* userStorage) { |
| 1465 | UserCallBack callBack; |
| 1466 | callBack.fPropertyCallBack = prop; |
| 1467 | commonCallBack(kProperty, callBack, userStorage); |
| 1468 | } |
| 1469 | |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1470 | void SkScriptEngine::track(SkTypedArray* array) { |
| 1471 | SkASSERT(fTrackArray.find(array) < 0); |
| 1472 | *(fTrackArray.end() - 1) = array; |
| 1473 | fTrackArray.appendClear(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1474 | } |
| 1475 | |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1476 | void SkScriptEngine::track(SkString* string) { |
| 1477 | SkASSERT(fTrackString.find(string) < 0); |
| 1478 | *(fTrackString.end() - 1) = string; |
| 1479 | fTrackString.appendClear(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1480 | } |
| 1481 | |
| 1482 | void SkScriptEngine::unboxCallBack(_unboxCallBack func, void* userStorage) { |
| 1483 | UserCallBack callBack; |
| 1484 | callBack.fUnboxCallBack = func; |
| 1485 | commonCallBack(kUnbox, callBack, userStorage); |
| 1486 | } |
| 1487 | |
| 1488 | bool SkScriptEngine::ConvertTo(SkScriptEngine* engine, SkDisplayTypes toType, SkScriptValue* value ) { |
| 1489 | SkASSERT(value); |
| 1490 | if (SkDisplayType::IsEnum(NULL /* fMaker */, toType)) |
| 1491 | toType = SkType_Int; |
| 1492 | if (toType == SkType_Point || toType == SkType_3D_Point) |
| 1493 | toType = SkType_Float; |
| 1494 | if (toType == SkType_Drawable) |
| 1495 | toType = SkType_Displayable; |
| 1496 | SkDisplayTypes type = value->fType; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1497 | if (type == toType) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1498 | return true; |
| 1499 | SkOperand& operand = value->fOperand; |
| 1500 | bool success = true; |
| 1501 | switch (toType) { |
| 1502 | case SkType_Int: |
| 1503 | if (type == SkType_Boolean) |
| 1504 | break; |
| 1505 | if (type == SkType_Float) |
| 1506 | operand.fS32 = SkScalarFloor(operand.fScalar); |
| 1507 | else { |
| 1508 | if (type != SkType_String) { |
| 1509 | success = false; |
| 1510 | break; // error |
| 1511 | } |
| 1512 | success = SkParse::FindS32(operand.fString->c_str(), &operand.fS32) != NULL; |
| 1513 | } |
| 1514 | break; |
| 1515 | case SkType_Float: |
| 1516 | if (type == SkType_Int) { |
humper@google.com | 0e51577 | 2013-01-07 19:54:40 +0000 | [diff] [blame] | 1517 | if (operand.fS32 == SK_NaN32) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1518 | operand.fScalar = SK_ScalarNaN; |
| 1519 | else if (SkAbs32(operand.fS32) == SK_MaxS32) |
| 1520 | operand.fScalar = SkSign32(operand.fS32) * SK_ScalarMax; |
| 1521 | else |
| 1522 | operand.fScalar = SkIntToScalar(operand.fS32); |
| 1523 | } else { |
| 1524 | if (type != SkType_String) { |
| 1525 | success = false; |
| 1526 | break; // error |
| 1527 | } |
| 1528 | success = SkParse::FindScalar(operand.fString->c_str(), &operand.fScalar) != NULL; |
| 1529 | } |
| 1530 | break; |
| 1531 | case SkType_String: { |
| 1532 | SkString* strPtr = new SkString(); |
| 1533 | SkASSERT(engine); |
| 1534 | engine->track(strPtr); |
commit-bot@chromium.org | c84728d | 2013-12-04 20:07:47 +0000 | [diff] [blame] | 1535 | if (type == SkType_Int) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1536 | strPtr->appendS32(operand.fS32); |
commit-bot@chromium.org | c84728d | 2013-12-04 20:07:47 +0000 | [diff] [blame] | 1537 | } else if (type == SkType_Displayable) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1538 | SkASSERT(0); // must call through instance version instead of static version |
commit-bot@chromium.org | c84728d | 2013-12-04 20:07:47 +0000 | [diff] [blame] | 1539 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1540 | if (type != SkType_Float) { |
| 1541 | success = false; |
| 1542 | break; |
| 1543 | } |
| 1544 | strPtr->appendScalar(operand.fScalar); |
| 1545 | } |
| 1546 | operand.fString = strPtr; |
| 1547 | } break; |
| 1548 | case SkType_Array: { |
| 1549 | SkTypedArray* array = new SkTypedArray(type); |
| 1550 | *array->append() = operand; |
| 1551 | engine->track(array); |
| 1552 | operand.fArray = array; |
| 1553 | } break; |
| 1554 | default: |
| 1555 | SkASSERT(0); |
| 1556 | } |
| 1557 | value->fType = toType; |
| 1558 | if (success == false) |
| 1559 | engine->fError = kTypeConversionFailed; |
| 1560 | return success; |
| 1561 | } |
| 1562 | |
| 1563 | SkScalar SkScriptEngine::IntToScalar(int32_t s32) { |
| 1564 | SkScalar scalar; |
humper@google.com | 0e51577 | 2013-01-07 19:54:40 +0000 | [diff] [blame] | 1565 | if (s32 == SK_NaN32) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1566 | scalar = SK_ScalarNaN; |
| 1567 | else if (SkAbs32(s32) == SK_MaxS32) |
| 1568 | scalar = SkSign32(s32) * SK_ScalarMax; |
| 1569 | else |
| 1570 | scalar = SkIntToScalar(s32); |
| 1571 | return scalar; |
| 1572 | } |
| 1573 | |
| 1574 | SkDisplayTypes SkScriptEngine::ToDisplayType(SkOpType type) { |
| 1575 | int val = type; |
| 1576 | switch (val) { |
| 1577 | case kNoType: |
| 1578 | return SkType_Unknown; |
| 1579 | case kInt: |
| 1580 | return SkType_Int; |
| 1581 | case kScalar: |
| 1582 | return SkType_Float; |
| 1583 | case kString: |
| 1584 | return SkType_String; |
| 1585 | case kArray: |
| 1586 | return SkType_Array; |
| 1587 | case kObject: |
| 1588 | return SkType_Displayable; |
| 1589 | // case kStruct: |
| 1590 | // return SkType_Structure; |
| 1591 | default: |
| 1592 | SkASSERT(0); |
| 1593 | return SkType_Unknown; |
| 1594 | } |
| 1595 | } |
| 1596 | |
| 1597 | SkScriptEngine::SkOpType SkScriptEngine::ToOpType(SkDisplayTypes type) { |
| 1598 | if (SkDisplayType::IsDisplayable(NULL /* fMaker */, type)) |
| 1599 | return (SkOpType) kObject; |
| 1600 | if (SkDisplayType::IsEnum(NULL /* fMaker */, type)) |
| 1601 | return kInt; |
| 1602 | switch (type) { |
| 1603 | case SkType_ARGB: |
| 1604 | case SkType_MSec: |
| 1605 | case SkType_Int: |
| 1606 | return kInt; |
| 1607 | case SkType_Float: |
| 1608 | case SkType_Point: |
| 1609 | case SkType_3D_Point: |
| 1610 | return kScalar; |
| 1611 | case SkType_Base64: |
| 1612 | case SkType_DynamicString: |
| 1613 | case SkType_String: |
| 1614 | return kString; |
| 1615 | case SkType_Array: |
| 1616 | return (SkOpType) kArray; |
| 1617 | case SkType_Unknown: |
| 1618 | return kNoType; |
| 1619 | default: |
| 1620 | SkASSERT(0); |
| 1621 | return kNoType; |
| 1622 | } |
| 1623 | } |
| 1624 | |
| 1625 | bool SkScriptEngine::ValueToString(SkScriptValue value, SkString* string) { |
| 1626 | switch (value.fType) { |
| 1627 | case kInt: |
| 1628 | string->reset(); |
| 1629 | string->appendS32(value.fOperand.fS32); |
| 1630 | break; |
| 1631 | case kScalar: |
| 1632 | string->reset(); |
| 1633 | string->appendScalar(value.fOperand.fScalar); |
| 1634 | break; |
| 1635 | case kString: |
| 1636 | string->set(*value.fOperand.fString); |
| 1637 | break; |
| 1638 | default: |
| 1639 | SkASSERT(0); |
| 1640 | return false; |
| 1641 | } |
| 1642 | return true; // no error |
| 1643 | } |
| 1644 | |
| 1645 | #ifdef SK_SUPPORT_UNITTEST |
| 1646 | |
reed@google.com | 7886ad3 | 2012-06-11 21:21:26 +0000 | [diff] [blame] | 1647 | #include "SkFloatingPoint.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1648 | |
| 1649 | #define DEF_SCALAR_ANSWER 0 |
| 1650 | #define DEF_STRING_ANSWER NULL |
| 1651 | |
| 1652 | #define testInt(expression) { #expression, SkType_Int, expression, DEF_SCALAR_ANSWER, DEF_STRING_ANSWER } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1653 | #define testScalar(expression) { #expression, SkType_Float, 0, (float) expression, DEF_STRING_ANSWER } |
| 1654 | #define testRemainder(exp1, exp2) { #exp1 "%" #exp2, SkType_Float, 0, sk_float_mod(exp1, exp2), DEF_STRING_ANSWER } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1655 | #define testTrue(expression) { #expression, SkType_Int, 1, DEF_SCALAR_ANSWER, DEF_STRING_ANSWER } |
| 1656 | #define testFalse(expression) { #expression, SkType_Int, 0, DEF_SCALAR_ANSWER, DEF_STRING_ANSWER } |
| 1657 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1658 | static const SkScriptNAnswer scriptTests[] = { |
| 1659 | testInt(1>1/2), |
| 1660 | testInt((6+7)*8), |
| 1661 | testInt(0&&1?2:3), |
| 1662 | testInt(3*(4+5)), |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1663 | testScalar(1.0+2.0), |
| 1664 | testScalar(1.0+5), |
| 1665 | testScalar(3.0-1.0), |
| 1666 | testScalar(6-1.0), |
| 1667 | testScalar(- -5.5- -1.5), |
| 1668 | testScalar(2.5*6.), |
| 1669 | testScalar(0.5*4), |
| 1670 | testScalar(4.5/.5), |
| 1671 | testScalar(9.5/19), |
| 1672 | testRemainder(9.5, 0.5), |
| 1673 | testRemainder(9.,2), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1674 | testRemainder(9,2.5), |
| 1675 | testRemainder(-9,2.5), |
| 1676 | testTrue(-9==-9.0), |
| 1677 | testTrue(-9.==-4.0-5), |
| 1678 | testTrue(-9.*1==-4-5), |
| 1679 | testFalse(-9!=-9.0), |
| 1680 | testFalse(-9.!=-4.0-5), |
| 1681 | testFalse(-9.*1!=-4-5), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1682 | testInt(0x123), |
| 1683 | testInt(0XABC), |
| 1684 | testInt(0xdeadBEEF), |
| 1685 | { "'123'+\"456\"", SkType_String, 0, 0, "123456" }, |
| 1686 | { "123+\"456\"", SkType_String, 0, 0, "123456" }, |
| 1687 | { "'123'+456", SkType_String, 0, 0, "123456" }, |
| 1688 | { "'123'|\"456\"", SkType_Int, 123|456, DEF_SCALAR_ANSWER, DEF_STRING_ANSWER }, |
| 1689 | { "123|\"456\"", SkType_Int, 123|456, DEF_SCALAR_ANSWER, DEF_STRING_ANSWER }, |
| 1690 | { "'123'|456", SkType_Int, 123|456, DEF_SCALAR_ANSWER, DEF_STRING_ANSWER }, |
| 1691 | { "'2'<11", SkType_Int, 1, DEF_SCALAR_ANSWER, DEF_STRING_ANSWER }, |
| 1692 | { "2<'11'", SkType_Int, 1, DEF_SCALAR_ANSWER, DEF_STRING_ANSWER }, |
| 1693 | { "'2'<'11'", SkType_Int, 0, DEF_SCALAR_ANSWER, DEF_STRING_ANSWER }, |
| 1694 | testInt(123), |
| 1695 | testInt(-345), |
| 1696 | testInt(+678), |
| 1697 | testInt(1+2+3), |
| 1698 | testInt(3*4+5), |
| 1699 | testInt(6+7*8), |
| 1700 | testInt(-1-2-8/4), |
| 1701 | testInt(-9%4), |
| 1702 | testInt(9%-4), |
| 1703 | testInt(-9%-4), |
| 1704 | testInt(123|978), |
| 1705 | testInt(123&978), |
| 1706 | testInt(123^978), |
| 1707 | testInt(2<<4), |
| 1708 | testInt(99>>3), |
| 1709 | testInt(~55), |
| 1710 | testInt(~~55), |
| 1711 | testInt(!55), |
| 1712 | testInt(!!55), |
| 1713 | // both int |
| 1714 | testInt(2<2), |
| 1715 | testInt(2<11), |
| 1716 | testInt(20<11), |
| 1717 | testInt(2<=2), |
| 1718 | testInt(2<=11), |
| 1719 | testInt(20<=11), |
| 1720 | testInt(2>2), |
| 1721 | testInt(2>11), |
| 1722 | testInt(20>11), |
| 1723 | testInt(2>=2), |
| 1724 | testInt(2>=11), |
| 1725 | testInt(20>=11), |
| 1726 | testInt(2==2), |
| 1727 | testInt(2==11), |
| 1728 | testInt(20==11), |
| 1729 | testInt(2!=2), |
| 1730 | testInt(2!=11), |
| 1731 | testInt(20!=11), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1732 | // left int, right scalar |
| 1733 | testInt(2<2.), |
| 1734 | testInt(2<11.), |
| 1735 | testInt(20<11.), |
| 1736 | testInt(2<=2.), |
| 1737 | testInt(2<=11.), |
| 1738 | testInt(20<=11.), |
| 1739 | testInt(2>2.), |
| 1740 | testInt(2>11.), |
| 1741 | testInt(20>11.), |
| 1742 | testInt(2>=2.), |
| 1743 | testInt(2>=11.), |
| 1744 | testInt(20>=11.), |
| 1745 | testInt(2==2.), |
| 1746 | testInt(2==11.), |
| 1747 | testInt(20==11.), |
| 1748 | testInt(2!=2.), |
| 1749 | testInt(2!=11.), |
| 1750 | testInt(20!=11.), |
| 1751 | // left scalar, right int |
| 1752 | testInt(2.<2), |
| 1753 | testInt(2.<11), |
| 1754 | testInt(20.<11), |
| 1755 | testInt(2.<=2), |
| 1756 | testInt(2.<=11), |
| 1757 | testInt(20.<=11), |
| 1758 | testInt(2.>2), |
| 1759 | testInt(2.>11), |
| 1760 | testInt(20.>11), |
| 1761 | testInt(2.>=2), |
| 1762 | testInt(2.>=11), |
| 1763 | testInt(20.>=11), |
| 1764 | testInt(2.==2), |
| 1765 | testInt(2.==11), |
| 1766 | testInt(20.==11), |
| 1767 | testInt(2.!=2), |
| 1768 | testInt(2.!=11), |
| 1769 | testInt(20.!=11), |
| 1770 | // both scalar |
| 1771 | testInt(2.<11.), |
| 1772 | testInt(20.<11.), |
| 1773 | testInt(2.<=2.), |
| 1774 | testInt(2.<=11.), |
| 1775 | testInt(20.<=11.), |
| 1776 | testInt(2.>2.), |
| 1777 | testInt(2.>11.), |
| 1778 | testInt(20.>11.), |
| 1779 | testInt(2.>=2.), |
| 1780 | testInt(2.>=11.), |
| 1781 | testInt(20.>=11.), |
| 1782 | testInt(2.==2.), |
| 1783 | testInt(2.==11.), |
| 1784 | testInt(20.==11.), |
| 1785 | testInt(2.!=2.), |
| 1786 | testInt(2.!=11.), |
| 1787 | testInt(20.!=11.), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1788 | // int, string (string is int) |
| 1789 | testFalse(2<'2'), |
| 1790 | testTrue(2<'11'), |
| 1791 | testFalse(20<'11'), |
| 1792 | testTrue(2<='2'), |
| 1793 | testTrue(2<='11'), |
| 1794 | testFalse(20<='11'), |
| 1795 | testFalse(2>'2'), |
| 1796 | testFalse(2>'11'), |
| 1797 | testTrue(20>'11'), |
| 1798 | testTrue(2>='2'), |
| 1799 | testFalse(2>='11'), |
| 1800 | testTrue(20>='11'), |
| 1801 | testTrue(2=='2'), |
| 1802 | testFalse(2=='11'), |
| 1803 | testFalse(2!='2'), |
| 1804 | testTrue(2!='11'), |
| 1805 | // int, string (string is scalar) |
| 1806 | testFalse(2<'2.'), |
| 1807 | testTrue(2<'11.'), |
| 1808 | testFalse(20<'11.'), |
| 1809 | testTrue(2=='2.'), |
| 1810 | testFalse(2=='11.'), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1811 | // scalar, string |
| 1812 | testFalse(2.<'2.'), |
| 1813 | testTrue(2.<'11.'), |
| 1814 | testFalse(20.<'11.'), |
| 1815 | testTrue(2.=='2.'), |
| 1816 | testFalse(2.=='11.'), |
| 1817 | // string, int |
| 1818 | testFalse('2'<2), |
| 1819 | testTrue('2'<11), |
| 1820 | testFalse('20'<11), |
| 1821 | testTrue('2'==2), |
| 1822 | testFalse('2'==11), |
| 1823 | // string, scalar |
| 1824 | testFalse('2'<2.), |
| 1825 | testTrue('2'<11.), |
| 1826 | testFalse('20'<11.), |
| 1827 | testTrue('2'==2.), |
| 1828 | testFalse('2'==11.), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1829 | // string, string |
| 1830 | testFalse('2'<'2'), |
| 1831 | testFalse('2'<'11'), |
| 1832 | testFalse('20'<'11'), |
| 1833 | testTrue('2'=='2'), |
| 1834 | testFalse('2'=='11'), |
| 1835 | // logic |
| 1836 | testInt(1?2:3), |
| 1837 | testInt(0?2:3), |
commit-bot@chromium.org | 2dc8b96 | 2013-08-14 11:36:27 +0000 | [diff] [blame] | 1838 | testInt((1&&2)||3), |
| 1839 | testInt((1&&0)||3), |
| 1840 | testInt((1&&0)||0), |
| 1841 | testInt(1||(0&&3)), |
| 1842 | testInt(0||(0&&3)), |
| 1843 | testInt(0||(1&&3)), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1844 | testInt(1?(2?3:4):5), |
| 1845 | testInt(0?(2?3:4):5), |
| 1846 | testInt(1?(0?3:4):5), |
| 1847 | testInt(0?(0?3:4):5), |
| 1848 | testInt(1?2?3:4:5), |
| 1849 | testInt(0?2?3:4:5), |
| 1850 | testInt(1?0?3:4:5), |
| 1851 | testInt(0?0?3:4:5), |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1852 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1853 | testInt(1?2:(3?4:5)), |
| 1854 | testInt(0?2:(3?4:5)), |
| 1855 | testInt(1?0:(3?4:5)), |
| 1856 | testInt(0?0:(3?4:5)), |
| 1857 | testInt(1?2:3?4:5), |
| 1858 | testInt(0?2:3?4:5), |
| 1859 | testInt(1?0:3?4:5), |
| 1860 | testInt(0?0:3?4:5) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1861 | , { "123.5", SkType_Float, 0, SkIntToScalar(123) + SK_Scalar1/2, DEF_STRING_ANSWER } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1862 | }; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1863 | |
| 1864 | #define SkScriptNAnswer_testCount SK_ARRAY_COUNT(scriptTests) |
| 1865 | |
| 1866 | void SkScriptEngine::UnitTest() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1867 | for (unsigned index = 0; index < SkScriptNAnswer_testCount; index++) { |
| 1868 | SkScriptEngine engine(SkScriptEngine::ToOpType(scriptTests[index].fType)); |
| 1869 | SkScriptValue value; |
| 1870 | const char* script = scriptTests[index].fScript; |
| 1871 | SkASSERT(engine.evaluateScript(&script, &value) == true); |
| 1872 | SkASSERT(value.fType == scriptTests[index].fType); |
| 1873 | SkScalar error; |
| 1874 | switch (value.fType) { |
| 1875 | case SkType_Int: |
| 1876 | SkASSERT(value.fOperand.fS32 == scriptTests[index].fIntAnswer); |
| 1877 | break; |
| 1878 | case SkType_Float: |
| 1879 | error = SkScalarAbs(value.fOperand.fScalar - scriptTests[index].fScalarAnswer); |
| 1880 | SkASSERT(error < SK_Scalar1 / 10000); |
| 1881 | break; |
| 1882 | case SkType_String: |
| 1883 | SkASSERT(strcmp(value.fOperand.fString->c_str(), scriptTests[index].fStringAnswer) == 0); |
| 1884 | break; |
| 1885 | default: |
| 1886 | SkASSERT(0); |
| 1887 | } |
| 1888 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1889 | } |
| 1890 | #endif |