src/CoffeeScript/Parser.php
static function Trace($TraceFILE, $zTracePrompt)
    {
        if (!$TraceFILE) {
            $zTracePrompt = 0;
        } elseif (!$zTracePrompt) {
            $TraceFILE = 0;
        }
        self::$yyTraceFILE = $TraceFILE;
        self::$yyTracePrompt = $zTracePrompt;
    }
static function Trace($TraceFILE, $zTracePrompt)
    {
        if (!$TraceFILE) {
            $zTracePrompt = 0;
        } elseif (!$zTracePrompt) {
            $TraceFILE = 0;
        }
        self::$yyTraceFILE = $TraceFILE;
        self::$yyTracePrompt = $zTracePrompt;
    }
static function Trace ( $ TraceFILE , $ zTracePrompt ) { if ( ! $ TraceFILE ) { $ zTracePrompt = 0 ; } elseif ( ! $ zTracePrompt ) { $ TraceFILE = 0 ; } self :: $ yyTraceFILE = $ TraceFILE ; self :: $ yyTracePrompt = $ zTracePrompt ; }
Turn parser tracing on by giving a stream to which to write the trace
and a prompt to preface each trace message.  Tracing is turned off
by making either argument NULL

Inputs:

- A stream resource to which trace output should be written.
If NULL, then tracing is turned off.
- A prefix string written at the beginning of every
line of trace output.  If NULL, then tracing is
turned off.

Outputs:

- None.
@param resource
@param string
Turn parser tracing on by giving a stream to which to write the trace and a prompt to preface each trace message . Tracing is turned off by making either argument NULL