class AdLint::Exam::CBuiltin::W0742

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 18109
def initialize(phase_ctxt)
  super
  @interp = phase_ctxt[:cc1_interpreter]
  @interp.on_implicit_conv_performed += T(:check)
end

Private Instance Methods

check(init_or_expr, orig_var, rslt_var) click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 18116
def check(init_or_expr, orig_var, rslt_var)
  unless orig_var.type.scalar? && rslt_var.type.scalar? &&
      orig_var.type.signed? && rslt_var.type.unsigned?
    return
  end

  if init_or_expr.kind_of?(Cc1::Initializer)
    expr = init_or_expr.expression
  else
    expr = init_or_expr
  end

  if expr && constant_expression?(expr) &&
      orig_var.value.test_must_be_less_than(scalar_value_of(0)).true?
    W(expr.location)
  end
end
interpreter() click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 18134
def interpreter
  @interp
end