class AdLint::Exam::CBuiltin::W0584

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 13770
def initialize(phase_ctxt)
  super
  @interp = phase_ctxt[:cc1_interpreter]
  @interp.on_function_call_expr_evaled += T(:check)
end

Private Instance Methods

check(funcall_expr, fun, arg_vars, *) click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 13777
def check(funcall_expr, fun, arg_vars, *)
  return unless fun.named?
  return unless kandr_style_definition_of(fun)
  return if fun.type.have_va_list?

  args = arg_vars.map { |var| [var.type, var.value.to_single_value] }
  param_types = fun.type.parameter_types.reject { |type| type.void? }

  return unless args.size == param_types.size

  args.zip(param_types).each_with_index do |(arg, ptype), idx|
    arg_expr = funcall_expr.argument_expressions[idx]
    if constant_expression?(arg_expr)
      next if untyped_pointer_conversion?(arg.first, ptype, arg.last)
    end

    unless arg.first.convertible?(ptype)
      W(arg_expr.location, idx + 1)
    end
  end
end
interpreter() click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 13805
def interpreter
  @interp
end
kandr_style_definition_of(fun) click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 13799
def kandr_style_definition_of(fun)
  fun.declarations_and_definitions.find do |dcl_or_def|
    dcl_or_def.kind_of?(Cc1::KandRFunctionDefinition)
  end
end