boolean (@NotNull GrAssignmentExpression assignExp1, @NotNull GrAssignmentExpression assignExp2) { final IElementType sign1 = assignExp1.getOperationTokenType(); final IElementType sign2 = assignExp2.getOperationTokenType(); if (sign1 != sign2) { return false; } final GrExpression lhs1 = assignExp1.getLValue(); final GrExpression lhs2 = assignExp2.getLValue(); final GrExpression rhs1 = assignExp1.getRValue(); final GrExpression rhs2 = assignExp2.getRValue(); return expressionsAreEquivalent(lhs1, lhs2) && expressionsAreEquivalent(rhs1, rhs2); }