fx · documentation · 0.9.74

fx docs

Read in order. Same guides ship in the fxlang package under docs/.

Learn path

• 1 · Install doctor, five-minute hello, scaffolds
• Weekend path hello → CLI → optional fxserve
• How compile works Auto, emit-C, native when QBE is present
• 2 · Language types, control flow, Result, collections, modules, dual emission
• 3 · Composition SoA · pools · short paths
• 4 · Regions & effects arena · own · borrows · lexical loans · caps · guest
• 5 · Wrap / C host extern "c", --host, ABI interop
• 6 · CLI run, build, emit-c, test, fuzz, lsp, mcp, mod

Maps & reference

• Surface map As-implemented cheatsheet + limits
• Dual-emit tracking annotate comments, .fxmap, #line, fx locate
• Standard library vec, string, map, io, testing, concur, caps, …
• Reference keywords, operators, effects, builtins