class AdLint::Exam::CBuiltin::W0719

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 17385
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, *) click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 17392
def check(expr, lhs_var, rhs_var, *)
  if constant_expression?(expr.rhs_operand)
    underlying_type     = lhs_var.type
    underlying_bit_size = scalar_value_of(underlying_type.bit_size)
    promoted_type       = lhs_var.type.integer_promoted_type
    promoted_bit_size   = scalar_value_of(promoted_type.bit_size)

    rhs_val = rhs_var.value
    if rhs_val.test_must_be_equal_to(underlying_bit_size).true? ||
        rhs_val.test_must_be_greater_than(underlying_bit_size).true? and
        rhs_val.test_must_be_less_than(promoted_bit_size).true?
      W(expr.location, underlying_type.brief_image)
    end
  end
end
interpreter() click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 17408
def interpreter
  @interp
end