kc3-lang/kc3/doc/1_KC3/1.09_Block.en.md

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• Hash : 0791e752
  Author : Thomas de Grivel
  Date : 2025-04-02T17:38:27
  

  doc: block
  

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ikc3> do
ikc3>   1
ikc3>   2
ikc3>   3
ikc3> end
3
ikc3> quote do
ikc3>   1
ikc3>   2
ikc3>   3
ikc3> end
do
  1
  2
  3
end
ikc3> type(quote do
ikc3>   1
ikc3>   2
ikc3>   3
ikc3> end)
Block

Source

• doc/1_KC3/1.09_Block.en.md

• # 1.9 Block
  
  A KC3 block is a source code block. It starts with `do` or `{` and
  ends with `end` or `}` respectively.
  It can be passed to a special operator or macro function to
  be evaluated explicitly in C with `env_eval_block` (see
  `libkc3/env_eval.c`).
  
  A block evaluates all its instructions in turn, and returns the value
  of the last expression.
  
  ## 1.9.1 Examples
  
  ```elixir
  ikc3> do
  ikc3>   1
  ikc3>   2
  ikc3>   3
  ikc3> end
  3
  ikc3> quote do
  ikc3>   1
  ikc3>   2
  ikc3>   3
  ikc3> end
  do
    1
    2
    3
  end
  ikc3> type(quote do
  ikc3>   1
  ikc3>   2
  ikc3>   3
  ikc3> end)
  Block
  ```
  

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