1 files changed, 6 insertions, 6 deletions
diff --git a/libyul/AsmData.h b/libyul/AsmData.h
index 86c373a4..fd8eab38 100644
--- a/libyul/AsmData.h
+++ b/libyul/AsmData.h
@@ -59,25 +59,25 @@ struct StackAssignment { langutil::SourceLocation location; Identifier variableN
 /// Multiple assignment ("x, y := f()"), where the left hand side variables each occupy
 /// a single stack slot and expects a single expression on the right hand returning
 /// the same amount of items as the number of variables.
-struct Assignment { langutil::SourceLocation location; std::vector<Identifier> variableNames; std::shared_ptr<Expression> value; };
+struct Assignment { langutil::SourceLocation location; std::vector<Identifier> variableNames; std::unique_ptr<Expression> value; };
 /// Functional instruction, e.g. "mul(mload(20:u256), add(2:u256, x))"
 struct FunctionalInstruction { langutil::SourceLocation location; dev::solidity::Instruction instruction; std::vector<Expression> arguments; };
 struct FunctionCall { langutil::SourceLocation location; Identifier functionName; std::vector<Expression> arguments; };
 /// Statement that contains only a single expression
 struct ExpressionStatement { langutil::SourceLocation location; Expression expression; };
 /// Block-scope variable declaration ("let x:u256 := mload(20:u256)"), non-hoisted
-struct VariableDeclaration { langutil::SourceLocation location; TypedNameList variables; std::shared_ptr<Expression> value; };
+struct VariableDeclaration { langutil::SourceLocation location; TypedNameList variables; std::unique_ptr<Expression> value; };
 /// Block that creates a scope (frees declared stack variables)
 struct Block { langutil::SourceLocation location; std::vector<Statement> statements; };
 /// Function definition ("function f(a, b) -> (d, e) { ... }")
 struct FunctionDefinition { langutil::SourceLocation location; YulString name; TypedNameList parameters; TypedNameList returnVariables; Block body; };
 /// Conditional execution without "else" part.
-struct If { langutil::SourceLocation location; std::shared_ptr<Expression> condition; Block body; };
+struct If { langutil::SourceLocation location; std::unique_ptr<Expression> condition; Block body; };
 /// Switch case or default case
-struct Case { langutil::SourceLocation location; std::shared_ptr<Literal> value; Block body; };
+struct Case { langutil::SourceLocation location; std::unique_ptr<Literal> value; Block body; };
 /// Switch statement
-struct Switch { langutil::SourceLocation location; std::shared_ptr<Expression> expression; std::vector<Case> cases; };
-struct ForLoop { langutil::SourceLocation location; Block pre; std::shared_ptr<Expression> condition; Block post; Block body; };
+struct Switch { langutil::SourceLocation location; std::unique_ptr<Expression> expression; std::vector<Case> cases; };
+struct ForLoop { langutil::SourceLocation location; Block pre; std::unique_ptr<Expression> condition; Block post; Block body; };
 
 struct LocationExtractor: boost::static_visitor<langutil::SourceLocation>
 {