Class: Rack::Lint::Wrapper::InputWrapper

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/lint.rb

Instance Method Summary collapse

Constructor Details

#initialize(input) ⇒ InputWrapper

Returns a new instance of InputWrapper.

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# File 'lib/rack/lint.rb', line 496 def initialize(input) @input = input end

Instance Method Details

#close(*args) ⇒ Object

  • close can be called on the input stream to indicate that any remaining input is not needed.

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# File 'lib/rack/lint.rb', line 563 def close(*args) @input.close(*args) end

#each(*args) ⇒ Object

  • each must be called without arguments and only yield String values.

Raises:

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# File 'lib/rack/lint.rb', line 552 def each(*args) raise LintError, "rack.input#each called with arguments" unless args.size == 0 @input.each do |line| unless line.kind_of? String raise LintError, "rack.input#each didn't yield a String" end yield line end end

#gets(*args) ⇒ Object

  • gets must be called without arguments and return a String, or nil on EOF (end-of-file).

Raises:

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# File 'lib/rack/lint.rb', line 501 def gets(*args) raise LintError, "rack.input#gets called with arguments" unless args.size == 0 chunk = @input.gets unless chunk.nil? or chunk.kind_of? String raise LintError, "rack.input#gets didn't return a String" end chunk end

#read(*args) ⇒ Object

  • read behaves like IO#read. Its signature is read([length, [buffer]]).

    • If given, length must be a non-negative Integer (>= 0) or nil, and buffer must be a String and may not be nil.

    • If length is given and not nil, then this method reads at most length bytes from the input stream.

    • If length is not given or nil, then this method reads all data until EOF.

    • When EOF is reached, this method returns nil if length is given and not nil, or “” if length is not given or is nil.

    • If buffer is given, then the read data will be placed into buffer instead of a newly created String.

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# File 'lib/rack/lint.rb', line 519 def read(*args) unless args.size <= 2 raise LintError, "rack.input#read called with too many arguments" end if args.size >= 1 unless args.first.kind_of?(Integer) || args.first.nil? raise LintError, "rack.input#read called with non-integer and non-nil length" end unless args.first.nil? || args.first >= 0 raise LintError, "rack.input#read called with a negative length" end end if args.size >= 2 unless args[1].kind_of?(String) raise LintError, "rack.input#read called with non-String buffer" end end chunk = @input.read(*args) unless chunk.nil? or chunk.kind_of? String raise LintError, "rack.input#read didn't return nil or a String" end if args[0].nil? unless !chunk.nil? raise LintError, "rack.input#read(nil) returned nil on EOF" end end chunk end