class AdLint::Exam::CBuiltin::W0568
Public Class Methods
new(phase_ctxt)
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Calls superclass method
AdLint::Examination::new
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 13155 def initialize(phase_ctxt) super @interp = phase_ctxt[:cc1_interpreter] @interp.on_shift_expr_evaled += T(:check) end
Private Instance Methods
check(expr, lhs_var, rhs_var, *)
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# File lib/adlint/exam/c_builtin/cc1_check.rb, line 13162 def check(expr, lhs_var, rhs_var, *) op = expr.operator.type return unless op == "<<" || op == "<<=" return unless constant_expression?(expr.lhs_operand) if lhs_var.type.signed? test = lhs_var.value.test_must_be_less_than(scalar_value_of(0)) if test.true? W(expr.location, *test.evidence.emit_context_messages(self, expr.location)) return end if lhs_var.value.test_must_be_greater_than(scalar_value_of(0)).true? lhs_limit = scalar_value_of(lhs_var.type.max) >> rhs_var.value test = lhs_var.value.test_must_be_greater_than(lhs_limit) if test.true? W(expr.location, *test.evidence.emit_context_messages(self, expr.location)) end end end end
interpreter()
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# File lib/adlint/exam/c_builtin/cc1_check.rb, line 13186 def interpreter @interp end