编辑文件 - instance

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路径: /opt/alt/ruby18/share/ri/1.8/system/Object/instance_eval-i.yaml
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--- !ruby/object:RI::MethodDescription 
aliases: []

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
 body: Evaluates a string containing Ruby source code, or the given block, within the context of the receiver (obj). In order to set the context, the variable <tt>self</tt> is set to obj while the code is executing, giving the code access to obj's instance variables. In the version of <tt>instance_eval</tt> that takes a <tt>String</tt>, the optional second and third parameters supply a filename and starting line number that are used when reporting compilation errors.
- !ruby/struct:SM::Flow::VERB 
 body: " class Klass\n def initialize\n @secret = 99\n end\n end\n k = Klass.new\n k.instance_eval { @secret } #=&gt; 99\n"
full_name: Object#instance_eval
is_singleton: false
name: instance_eval
params: |
 obj.instance_eval(string [, filename [, lineno]] ) => obj
 obj.instance_eval {| | block } => obj

visibility: public

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