► |  | raco: Racket Command-Line Tools

1 | raco make: Compiling Source to Bytecode
2 | raco exe: Creating Stand-Alone Executables
3 | raco distribute: Sharing Stand-Alone Executables
4 | raco planet: Automatic Package Distribution
5 | raco pkg: Package Management
6 | raco setup: Installation Management
7 | raco decompile: Decompiling Bytecode
8 | raco demod: Demodularizing Programs
9 | raco link: Library Collection Links
10 | raco pack: Packing Library Collections
11 | raco unpack: Unpacking Library Collections
12 | raco ctool: Working with C Code
13 | raco test: Run tests
14 | raco docs: Documentation Search
15 | raco expand: Macro Expansion
16 | raco scribble: Building Documentation
17 | Adding a raco Command
18 | Installation Configuration and Search Paths

▼ | 12 | raco ctool: Working with C Code

12.1 | Compiling and Linking C Extensions
12.2 | Embedding Modules via C
12.3 | API for Raw Compilation

► | 12.3 | API for Raw Compilation

12.3.1 | Bytecode Compilation
12.3.2 | Loading Compiler Support
12.3.3 | Options for the Compiler
12.3.4 | The Compiler as a Unit

On this page:

12.3.1`` Bytecode Compilation
compile-zos
compile-collection-zos
compile-directory-zos
12.3.2`` Loading Compiler Support
current-compiler-dynamic-require-wrapper
12.3.3`` Options for the Compiler
somewhat-verbose
verbose
compile-subcollections
12.3.4`` The Compiler as a Unit
12.3.4.1`` Signatures
compiler^
compiler: option^
12.3.4.2`` Main Compiler Unit
compiler@
12.3.4.3`` Options Unit
compiler: option@

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#### 12.3`` API for Raw Compilation

(require compiler/compiler) | package: base

The compiler/compiler library provides the functionality of raco make for compilation to bytecode, but through a Racket API.

##### 12.3.1`` Bytecode Compilation

> > procedure
> > ((compile-zos |  | expr |  |  |  |
> > | [ | #:module? module? |  |  |  |
> > |  | #:verbose? verbose?]) |  |  |  |
> > |  | racket-files |  |  |  |
> > |  | dest-dir) |  | → |  | void?
> expr : any/c
> module? : any/c = #f
> verbose? : any/c = #f
> racket-files : (listof path-string?)
> dest-dir : (or/c path-string? false/c (one-of/c 'auto))

Supplying just expr returns a compiler that is initialized with the expression expr, as described below.

The compiler takes a list of Racket files and compiles each of them to bytecode, placing the resulting bytecode in a ".zo" file within the directory specified by dest-dir. If dest-dir is #f, each bytecode result is placed in the same directory as its source file. If dest-dir is 'auto, each bytecode file is placed in a "compiled" subdirectory relative to the source; the directory is created if necessary.

If expr is anything other than #f, then a namespace is created for compiling the files that are supplied later, and expr is evaluated to initialize the created namespace. For example, expr might load a set of macros. In addition, the expansion-time part of each expression later compiled is evaluated in the namespace before being compiled, so that the effects are visible when compiling later expressions.

If expr is #f, then no compilation namespace is created (the current namespace is used), and expressions in the files are assumed to compile independently (so there’s no need to evaluate the expansion-time part of an expression to compile).

Typically, expr is #f for compiling module files, and it is (void) for compiling files with top-level definitions and expressions.

If module? is #t, then the given files are read and compiled as modules (so there is no dependency on the current namespace’s top-level environment).

If verbose? is #t, the output file for each given file is reported through the current output port.

> > procedure
> > (compile-collection-zos |
> > |  | collection ...+ |
> > | [ | #:skip-path skip-path |
> > |  | #:skip-doc-sources? skip-docs? |
> > |  | #:managed-compile-zo managed-compile-zo]) |
> → void?
> collection : string?
> skip-path : (or/c path-string? #f) = #f
> skip-docs? : any/c = #f
> | managed-compile-zo |  | : |  | (path-string? . -> . void?)
> |  |  | = |  | (make-caching-managed-compile-zo)

Compiles the specified collection’s files to ".zo" files by using managed-compile-zo on each source file. The ".zo" files are placed into the collection’s "compiled" directory.

By default, all files with the extension ".rkt", ".ss", or ".scm" in a collection are compiled, as are all such files within subdirectories, execept that any file or directory whose path starts with skip-path is skipped. (“Starts with” means that the simplified path p’s byte-string form after (simplify-path p #f)starts with the byte-string form of (simplify-path skip-path #f).)

The collection compiler reads the collection’s "info.rkt" file (see "info.rkt" File Format) to obtain further instructions for compiling the collection. The following fields are used:

- name : The name of the collection as a string, used only for status and error reporting.

- compile-omit-paths : A list of immediate file and directory paths that should not be compiled. Alternatively, this field’s value 'all, which is equivalent to specifying all files and directories in the collection (to effectively ignore the collection for compilation). Automatically omitted files and directories are "compiled", "doc", and those whose names start with ..

  Files that are required by other files, however, are always compiled in the process of compiling the requiring file—even when the required file is listed with this field or when the field’s value is 'all.

- compile-omit-files : A list of filenames (without directory paths); that are not compiled, in addition to the contents of compile-omit-paths. Do not use this field; it is for backward compatibility.

- scribblings : A list of pairs, each of which starts with a path for documentation source. The sources (and the files that they require) are compiled in the same way as ".rkt", ".ss", and ".scm" files, unless the provided skip-docs? argument is a true value.

> > procedure
> > (compile-directory-zos |
> > |  | path |
> > |  | info |
> > | [ | #:verbose verbose? |
> > |  | #:skip-path skip-path |
> > |  | #:skip-doc-sources? skip-docs? |
> > |  | #:managed-compile-zo managed-compile-zo]) |
> → void?
> path : path-string?
> info : ()
> verbose? : any/c = #f
> skip-path : (or/c path-string? #f) = #f
> skip-docs? : any/c = #f
> | managed-compile-zo |  | : |  | (path-string? . -> . void?)
> |  |  | = |  | (make-caching-managed-compile-zo)

Like compile-collection-zos, but compiles the given directory rather than a collection. The info function behaves like the result of get-info to supply "info.rkt" fields, instead of using an "info.rkt" file (if any) in the directory.

##### 12.3.2`` Loading Compiler Support

The compiler unit loads certain tools on demand via dynamic-require and get-info. If the namespace used during compilation is different from the namespace used to load the compiler, or if other load-related parameters are set, then the following parameter can be used to restore settings for dynamic-require.

> parameter (current-compiler-dynamic-require-wrapper)
> → ((-> any) . -> . any)
> (current-compiler-dynamic-require-wrapper proc) → void?
> proc : ((-> any) . -> . any)

A parameter whose value is a procedure that takes a thunk to apply. The default wrapper sets the current namespace (via parameterize) before calling the thunk, using the namespace in which the compiler/compiler library was originally instantiated.

##### 12.3.3`` Options for the Compiler

(require compiler/option) | package: base

The compiler/option module provides options (in the form of parameters) that control the compiler’s behaviors.

More options are defined by the dynext/compile and dynext/link libraries, which control the actual C compiler and linker that are used for compilation via C.

> parameter (somewhat-verbose) → boolean?
> (somewhat-verbose on?) → void?
> on? : any/c

A #t value for the parameter causes the compiler to print the files that it compiles and produces. The default is #f.

> parameter (verbose) → boolean?
> (verbose on?) → void?
> on? : any/c

A #t value for the parameter causes the compiler to print verbose messages about its operations. The default is #f.

> parameter (compile-subcollections) → (one-of/c #t #f)
> (compile-subcollections cols) → void?
> cols : (one-of/c #t #f)

A parameter that specifies whether sub-collections are compiled by compile-collection-zos. The default is #t.

##### 12.3.4`` The Compiler as a Unit

##### 12.3.4.1`` Signatures

(require compiler/sig) | package: compiler-lib

> signature compiler^ : signature

Includes all of the names exported by compiler/compiler.

> signature compiler:option^ : signature

Includes all of the names exported by compiler/option.

##### 12.3.4.2`` Main Compiler Unit

(require compiler/compiler-unit) | package: compiler-lib

> value compiler@ : unit?

Provides the exports of compiler/compiler in unit form, where C-compiler operations are imports to the unit, although they are not used.

The unit imports compiler:option^, dynext:compile^, dynext:link^, and dynext:file^. It exports compiler^.

##### 12.3.4.3`` Options Unit

(require compiler/option-unit) | package: compiler-lib

> value compiler:option@ : unit?

Provides the exports of compiler/option in unit form. It imports no signatures, and exports compiler:option^.
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