class AdLint::Exam::CBuiltin::W0422

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 8449
def initialize(phase_ctxt)
  super
  @interp = phase_ctxt[:cc1_interpreter]
  @interp.on_indirection_expr_evaled     += T(:check_indirection)
  @interp.on_member_access_expr_evaled   += T(:check_member_access)
  @interp.on_array_subscript_expr_evaled += T(:check_array_subscript)
end

Private Instance Methods

check_array_subscript(expr, ary_or_ptr, *) click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 8487
def check_array_subscript(expr, ary_or_ptr, *)
  return unless ary_or_ptr.type.pointer?
  return unless ary_or_ptr.value.scalar?

  unless constant_expression?(expr.expression)
    if ary_or_ptr.value.test_must_be_null.false?
      test = ary_or_ptr.value.test_may_be_null
      if test.true?
        W(expr.location,
          *test.evidence.emit_context_messages(self, expr.location))
      end
    end
  end
end
check_indirection(expr, ptr_var, *) click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 8458
def check_indirection(expr, ptr_var, *)
  return unless ptr_var.value.scalar?

  unless constant_expression?(expr.operand)
    if ptr_var.value.test_must_be_null.false?
      test = ptr_var.value.test_may_be_null
      if test.true?
        W(expr.location,
          *test.evidence.emit_context_messages(self, expr.location))
      end
    end
  end
end
check_member_access(expr, outer_var, *) click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 8472
def check_member_access(expr, outer_var, *)
  return unless outer_var.type.pointer?
  return unless outer_var.value.scalar?

  unless constant_expression?(expr.expression)
    if outer_var.value.test_must_be_null.false?
      test = outer_var.value.test_may_be_null
      if test.true?
        W(expr.location,
          *test.evidence.emit_context_messages(self, expr.location))
      end
    end
  end
end
interpreter() click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 8502
def interpreter
  @interp
end