Crate kotlin_codegen 

Kotlin code generator — a self-contained declaration model + renderer (KotlinPoet-style “spec model with raw code bodies”).

Declarations (files, classes, functions, properties, parameters, types, annotations) are typed model values; imports and formatting derive from the model. Statement bodies stay raw Kotlin text structured through the indentation-aware KtCode builder.

This crate is deliberately dependency-free: it receives model values and strings, and produces source text and file paths. Consumers build the model; this crate renders it.

Structs

ImportSet

Per-file import collector. Maps simple name → owning FQN; first registration wins, later distinct FQNs with the same simple name render fully qualified.

KtClass

A class / object / enum / data / value-class declaration.

KtCode

A sequence of raw lines and nested blocks plus the imports its text references. Rendered with 4-space indentation per nesting level.

KtCtorParam

Primary-constructor parameter, optionally a val/var property.

KtEnumEntry

KtFile

One Kotlin source file fragment: a package plus top-level declarations. Fragments of the same package are merged by super::file::merge_files.

KtFun

A function declaration (top-level or member).

KtFunInterface

A fun interface (SAM) declaration: exactly one abstract method.

KtParam

A function parameter with an optional default-value expression.

KtProperty

A property declaration (top-level or member).

Enums

KtBody

A function body.

KtClassKind

The kind of class-like declaration.

KtDecl

A top-level (or member-level, for Raw) declaration.

KtPropertyValue

A property’s value: no value, an initializer, or a delegate.

KtType

A Kotlin type reference.

KtVis

Visibility modifier. Public renders explicitly (matching the existing generated style); Default renders nothing.

WriteKotlinError

Errors surfaced by Kotlin emission.

Functions

merge_files

Merge fragments into one KtFile per package (sorted package order; within a package, fragments keep their emission order). Fails on a duplicate top-level declaration name within a package — a single merged file can’t hold two declarations of the same identity.

write_files

Render and write every merged file; returns the written paths.