diff options
Diffstat (limited to 'proc.c')
| -rw-r--r-- | proc.c | 19 |
1 files changed, 11 insertions, 8 deletions
@@ -683,20 +683,23 @@ rb_block_clear_env_self(VALUE proc) * <i>params</i> using something close to method calling semantics. * Generates a warning if multiple values are passed to a proc that * expects just one (previously this silently converted the parameters - * to an array). Note that prc.() invokes prc.call() with the parameters - * given. It's a syntax sugar to hide "call". + * to an array). Note that <code>prc.()</code> invokes + * <code>prc.call()</code> with the parameters given. It's a syntax sugar to + * hide "call". + * + * Returns the value of the last expression evaluated in the block. See + * also Proc#yield. + * + * a_proc = Proc.new { |scalar, *values| values.collect { |value| value*scalar } } + * a_proc.call(9, 1, 2, 3) #=> [9, 18, 27] + * a_proc[9, 1, 2, 3] #=> [9, 18, 27] + * a_proc.(9, 1, 2, 3) #=> [9, 18, 27] * * For procs created using <code>lambda</code> or <code>->()</code> an error * is generated if the wrong number of parameters are passed to a Proc with * multiple parameters. For procs created using <code>Proc.new</code> or * <code>Kernel.proc</code>, extra parameters are silently discarded. * - * Returns the value of the last expression evaluated in the block. See - * also <code>Proc#yield</code>. - * - * a_proc = Proc.new {|a, *b| b.collect {|i| i*a }} - * a_proc.call(9, 1, 2, 3) #=> [9, 18, 27] - * a_proc[9, 1, 2, 3] #=> [9, 18, 27] * a_proc = lambda {|a,b| a} * a_proc.call(1,2,3) * |