class AdLint::Exam::CBuiltin::W0096

Public Class Methods

new(phase_ctxt) click to toggle source
Calls superclass method AdLint::Examination::new
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 2123
def initialize(phase_ctxt)
  super
  @interp = phase_ctxt[:cc1_interpreter]
  @interp.on_multiplicative_expr_evaled += T(:check)
end

Private Instance Methods

check(expr, lhs_var, rhs_var, *) click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 2130
def check(expr, lhs_var, rhs_var, *)
  return if expr.operator.type == "*"
  return unless rhs_var.type.scalar? && rhs_var.value.scalar?

  if constant_expression?(expr.rhs_operand)
    test = rhs_var.value.test_must_be_equal_to(scalar_value_of(0))
    if test.true?
      W(expr.location,
        *test.evidence.emit_context_messages(self, expr.location))
    end
  end
end
interpreter() click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 2143
def interpreter
  @interp
end