Module converter

IR Converter module takes AST and produces intermediate representation. All core template syntax conversion happens here. IR is later used for optimizing transformation and code generation. As we decouple codegen node from AST, Vue’s transformation passes are broken down to two parts. Convert module roughly corresponds to following transform in vue-next.

IR Convert

• transformElement
• transformSlotOutlet
• transformTextCall
• vFor
• vIf
• vSlot
• vOnce (noop)
• vMemo (noop)

Transform directive

• noopDirectiveTransform
• vModel
• vBind
• vOn (noop)

Re-exports

pub use crate::error::CompilationError;

pub use crate::error::ErrorHandler;

pub use crate::parser::AstNode;

pub use crate::parser::AstRoot;

pub use crate::parser::Directive;

pub use crate::parser::Element;

Structs

BaseConvertInfo

BaseConverter

BindingMetadata

stores binding variables exposed by data/prop/setup script. also stores if the binding is from setup script.

ConvertOption

ForNodeIR

ForParseResult

IRRoot

IfBranch

IfNodeIR

RenderSlotIR

RuntimeDir

SFCInfo

SFC info of the current template

Slot

TextIR

TopScope

VNodeIR

VSlotIR

Enums

BindingTypes

DirectiveConvertResult

Directive’s prop argument passed to VNodeCall after conversion. Use Dropped if the directive is dropped implicitly without codegen. NB: this is not 100% translation from TS. value accepts both Props and Object.

IRNode

JsExpr

Traits

ConvertInfo

Converter

Converts template ast node to intermediate representation. It defines the most generic Converter interface. The IR format can be platform specific. e.g Platfroms other than DOM/SSR can have different IR

CoreConverter

Default implementation sketch can be used in DOM/SSR. Other platform might invent and use their own IR.

Functions

no_op_directive_convert

Type Aliases

BaseIR

BaseRoot

CoreDirConvRet

DirConvertFn

Returns the conversion of a directive. Value could be props or object.

DirectiveConverter

Prop