Crate valua_ast 

Typed AST for Lua 5.5 — shared by parser, transformer, and code generator.

Also houses LuaTarget, the cross-cutting compilation-target enum used by both valua-lint and valua-codegen. Placing it here avoids an illegal valua-lint → valua-codegen dependency (see architectural note in PRD §6.2).

Structs

Assign

Simple or multi-target assignment: targets = values.

Block

Root node: a sequence of statements followed by an optional return.

Do

do … end block.

ElseIf

One elseif cond then body branch.

FunctionBody

Shared representation for anonymous and named function bodies.

FunctionDecl

function name.path:method (params) body end

FunctionName

Dotted function name with optional method receiver: a.b.c:method.

GenericFor

for namelist in exprlist do body end

Goto

goto label

If

if cond then body [elseif …]* [else …] end

Label

::label::

LocalDecl

local varlist [<attr>] [= exprlist]

LocalFunctionDecl

local function name (params) body end

LocalName

One name in a local declaration, with its optional attribute.

NumericFor

for i = start, limit [, step] do body end

Param

One parameter in a function signature.

Repeat

repeat body until cond

Return

return [exprlist]

TableConstructor

{ field, field, … }

While

while cond do body end

Enums

Attribute

Lua 5.4/5.5 variable attributes.

BinaryOp

Binary operators in Lua 5.5 (includes bitwise and integer division).

Call

A function-call expression or method-call expression.

Expression

All expression forms in Lua 5.5.

LuaTarget

Target Lua runtime — controls which built-ins and polyfills are assumed available.

Statement

Every kind of statement in Lua 5.5 (Lua 5.4 is a fully supported subset).

TableField

One field in a table constructor.

UnaryOp

Unary operators in Lua 5.5.