class AdLint::Exam::CBuiltin::W0087

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 2008
def initialize(phase_ctxt)
  super
  trav = phase_ctxt[:cc1_ast_traversal]
  trav.enter_simple_assignment_expression   += T(:enter_assignment)
  trav.leave_simple_assignment_expression   += T(:leave_assignment)
  trav.enter_compound_assignment_expression += T(:enter_assignment)
  trav.leave_compound_assignment_expression += T(:leave_assignment)
  trav.enter_function_call_expression       += T(:enter_assignment)
  trav.leave_function_call_expression       += T(:leave_assignment)
  trav.enter_comma_separated_expression     += T(:check)
  @assignment_depth = 0
end

Private Instance Methods

check(node) click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 2030
def check(node)
  if !node.expressions.last.have_side_effect? && @assignment_depth == 0
    W(node.location)
  end
end
enter_assignment(*) click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 2022
def enter_assignment(*)
  @assignment_depth += 1
end
leave_assignment(*) click to toggle source
# File lib/adlint/exam/c_builtin/cc1_check.rb, line 2026
def leave_assignment(*)
  @assignment_depth -= 1
end