v 命令

常用示例

说明

v is the compiler for the V programming language, a statically typed systems language designed for simplicity and fast compilation. It compiles V source code to native machine code via C, achieving near-instant build times even for large projects. The compiler includes a built-in code formatter, test runner, REPL, and package manager. V emphasizes memory safety through features like no null pointers, immutable variables by default, and optional garbage collection. It provides seamless C interoperability, allowing direct calls to C libraries without bindings. Production builds with the -prod flag enable additional optimizations. The compiler can also generate C source code for portability to platforms without a V compiler available.

参数

run

Compile the source file(s) and immediately execute the resulting binary.

fmt

Format source files using the canonical V style.

test

Compile and run _test.v files in the given directory or module.

repl

Start the interactive Read-Eval-Print Loop.

build-module, build, init, new, install, remove, search

Subcommands for module scaffolding and dependency management.

-o _FILE_

Output binary filename.

-prod

Enable production optimizations (slower compile, faster binary).

-cc _COMPILER_

Back-end C compiler to use (e.g. clang, gcc, tcc).

-g

Include debug information in the output.

-cflags _FLAGS_, -ldflags _FLAGS_

Append extra flags for the C compiler or linker.

-shared

Build a shared library instead of an executable.

-autofree

Enable the experimental auto-free memory management mode.

-gc _MODE_

Choose a garbage-collector mode (e.g. boehm, none).

-stats

Print detailed statistics (especially useful with v test).

-show-timings

Report per-phase compilation times.

-skip-unused

Skip code generation for unused functions (faster builds).