class Crystal::Program

• Crystal::Program
• Crystal::NonGenericModuleType
• Crystal::ModuleType
• Crystal::NamedType
• Crystal::Type
• Reference
• Object

Overview

A program contains all types and top-level methods related to one compilation of a program.

It also carries around all information needed to compile a bunch of files: the unions, the symbols used, all global variables, all required files, etc. Because of this, a Program is usually passed around in every step of a compilation to record and query this information.

In a way, a Program is an alternative implementation to having global variables for all of this data, but modeled this way one can easily test and exercise programs because each one has its own definition of the types created, methods instantiated, etc.

Additionally, a Program acts as a regular type (a module) that can have types (the top-level types) and methods (the top-level methods), and which can also include other modules (this happens when you do include Module at the top-level).

Included Modules

• Crystal::DefInstanceContainer

Defined in:

Instance Method Summary

• #crystal_path=(crystal_path : Crystal::CrystalPath | Nil)

  Make it possible to use a custom library path.

• #error_stack : Set(Crystal::CodeError)
• #fail_slow : Bool
• #fail_slow=(fail_slow : Bool)
• #fail_slow_semantic(node : ASTNode, cleanup = true) : ASTNode

  Will not raise if the semantic analysis fails.

• #file_overrides : Hash(String, String) | Nil

  Make it possible to compile in-memory.

• #file_overrides=(file_overrides : Hash(String, String) | Nil)

  Make it possible to compile in-memory.

Instance Method Detail