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-rw-r--r--libevmasm/SemanticInformation.cpp53
-rw-r--r--libevmasm/SemanticInformation.h2
2 files changed, 55 insertions, 0 deletions
diff --git a/libevmasm/SemanticInformation.cpp b/libevmasm/SemanticInformation.cpp
index f63f0c61..ceb3fbdd 100644
--- a/libevmasm/SemanticInformation.cpp
+++ b/libevmasm/SemanticInformation.cpp
@@ -188,3 +188,56 @@ bool SemanticInformation::invalidatesStorage(Instruction _instruction)
return false;
}
}
+
+bool SemanticInformation::invalidInPureFunctions(Instruction _instruction)
+{
+ switch (_instruction)
+ {
+ case Instruction::ADDRESS:
+ case Instruction::BALANCE:
+ case Instruction::ORIGIN:
+ case Instruction::CALLER:
+ case Instruction::CALLVALUE:
+ case Instruction::GASPRICE:
+ case Instruction::EXTCODESIZE:
+ case Instruction::EXTCODECOPY:
+ case Instruction::BLOCKHASH:
+ case Instruction::COINBASE:
+ case Instruction::TIMESTAMP:
+ case Instruction::NUMBER:
+ case Instruction::DIFFICULTY:
+ case Instruction::GASLIMIT:
+ case Instruction::STATICCALL:
+ case Instruction::SLOAD:
+ return true;
+ default:
+ break;
+ }
+ return invalidInViewFunctions(_instruction);
+}
+
+bool SemanticInformation::invalidInViewFunctions(Instruction _instruction)
+{
+ switch (_instruction)
+ {
+ case Instruction::SSTORE:
+ case Instruction::JUMP:
+ case Instruction::JUMPI:
+ case Instruction::GAS:
+ case Instruction::LOG0:
+ case Instruction::LOG1:
+ case Instruction::LOG2:
+ case Instruction::LOG3:
+ case Instruction::LOG4:
+ case Instruction::CREATE:
+ case Instruction::CALL:
+ case Instruction::CALLCODE:
+ case Instruction::DELEGATECALL:
+ case Instruction::CREATE2:
+ case Instruction::SELFDESTRUCT:
+ return true;
+ default:
+ break;
+ }
+ return false;
+}
diff --git a/libevmasm/SemanticInformation.h b/libevmasm/SemanticInformation.h
index 5b02061f..e5ea7c18 100644
--- a/libevmasm/SemanticInformation.h
+++ b/libevmasm/SemanticInformation.h
@@ -53,6 +53,8 @@ struct SemanticInformation
static bool invalidatesMemory(solidity::Instruction _instruction);
/// @returns true if the given instruction modifies storage (even indirectly).
static bool invalidatesStorage(solidity::Instruction _instruction);
+ static bool invalidInPureFunctions(solidity::Instruction _instruction);
+ static bool invalidInViewFunctions(solidity::Instruction _instruction);
};
}