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- Avoids unnecessary conversions between StringOrSymbol and PropertyKey on the hot path of property access. - Simplifies the code by removing StringOrSymbol and using PropertyKey directly. There was no reason to have a separate StringOrSymbol type representing the same data as PropertyKey, just with the index key stored as a string. PropertyKey has been updated to use a tagged pointer instead of a Variant, so it still occupies 8 bytes, same as StringOrSymbol. 12% improvement on JetStream/gcc-loops.cpp.js 12% improvement on MicroBench/object-assign.js 7% improvement on MicroBench/object-keys.js |
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| .. | ||
| ASTCodegen.cpp | ||
| BasicBlock.cpp | ||
| BasicBlock.h | ||
| Builtins.cpp | ||
| Builtins.h | ||
| CodeGenerationError.cpp | ||
| CodeGenerationError.h | ||
| Executable.cpp | ||
| Executable.h | ||
| Generator.cpp | ||
| Generator.h | ||
| IdentifierTable.cpp | ||
| IdentifierTable.h | ||
| Instruction.cpp | ||
| Instruction.h | ||
| Interpreter.cpp | ||
| Interpreter.h | ||
| Label.cpp | ||
| Label.h | ||
| Op.h | ||
| Operand.h | ||
| RegexTable.cpp | ||
| RegexTable.h | ||
| Register.h | ||
| ScopedOperand.cpp | ||
| ScopedOperand.h | ||
| StringTable.cpp | ||
| StringTable.h | ||