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How to Compile Single File In Elixir?

3 minutes read

To compile a single file in Elixir, you can use the elixirc command followed by the path to the file you want to compile. For example, if you have a file named my_file.ex that you want to compile, you can run elixirc my_file.ex in your terminal. This will compile the file and generate a corresponding .beam file that contains the compiled bytecode. Make sure that you have Elixir installed and properly configured on your system before attempting to compile any files.


How to compile Elixir code using a specific version of the compiler?

To compile Elixir code using a specific version of the compiler, you can use the following steps:

  1. Install the desired version of the Elixir compiler using the following command:
1

asdf install elixir x.x.x


Replace x.x.x with the desired version number.

  1. Set the local Elixir version in your project directory by running the following command:
1

asdf local elixir x.x.x


  1. Now you can compile your Elixir code using the specific version of the compiler by running the following command:
1

mix compile


This will ensure that your Elixir code is compiled using the specified version of the Elixir compiler.


What are the steps involved in compiling Elixir code?

Compiling Elixir code involves the following steps:

  1. Parsing: The Elixir compiler first parses the source code to create an abstract syntax tree (AST), which represents the structure of the code in a hierarchical form.
  2. Expansion: The compiler expands macros, which are code patterns that are replaced with other code during compilation. This step involves transforming the AST by expanding all macros in the code.
  3. Annotation: The compiler annotates the AST with additional information such as line numbers, file names, and module information to aid in error reporting and debugging.
  4. Code generation: The annotated AST is then transformed into intermediate representation code (IR), which is a simplified version of the original code that can be easily translated into machine code.
  5. Module creation: The compiler creates a module for each source file, which contains all the compiled code for that file. Modules can then be linked together to form the final executable.
  6. Linking: Finally, the compiled modules are linked together to create the final executable file that can be run on the Elixir virtual machine.


Overall, compiling Elixir code involves parsing the source code, expanding macros, annotating the AST, generating IR code, creating modules, and linking them together to produce an executable file.


How to compile Elixir code with optimizations disabled?

To compile Elixir code with optimizations disabled, you can use the MIX_ENV environment variable to set the environment to dev or debug. This will tell the Mix build tool to compile the code with optimizations disabled.


Here's how you can compile Elixir code with optimizations disabled:

  1. Open your terminal.
  2. Set the MIX_ENV environment variable to dev or debug: export MIX_ENV=dev or export MIX_ENV=debug
  3. Run the Mix compile task to compile the Elixir code with optimizations disabled: mix compile


This will compile the Elixir code with optimizations disabled, making it easier to debug and analyze the code.

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