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Add support for unions in arguments and for optional arguments

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This commit is contained in:
Anton Danilkin
2018-08-09 19:24:33 +03:00
parent f85fd0e2ad
commit 703b1ab91d
6 changed files with 710 additions and 320 deletions
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21
crates/backend/src/ast.rs
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@ -7,7 +7,7 @@ use Diagnostic;
/// An abstract syntax tree representing a rust program. Contains
/// extra information for joining up this rust code with javascript.
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq))]
#[derive(Default)]
#[derive(Default, Clone)]
pub struct Program {
/// rust -> js interfaces
pub exports: Vec<Export>,
@ -24,6 +24,7 @@ pub struct Program {
/// A rust to js interface. Allows interaction with rust objects/functions
/// from javascript.
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub struct Export {
/// The javascript class name.
pub class: Option<Ident>,
@ -44,6 +45,7 @@ pub struct Export {
/// The 3 types variations of `self`.
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub enum MethodSelf {
/// `self`
ByValue,
@ -54,6 +56,7 @@ pub enum MethodSelf {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub struct Import {
pub module: Option<String>,
pub js_namespace: Option<Ident>,
@ -61,6 +64,7 @@ pub struct Import {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub enum ImportKind {
Function(ImportFunction),
Static(ImportStatic),
@ -69,6 +73,7 @@ pub enum ImportKind {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub struct ImportFunction {
pub function: Function,
pub rust_name: Ident,
@ -81,6 +86,7 @@ pub struct ImportFunction {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub enum ImportFunctionKind {
Method {
class: String,
@ -91,18 +97,21 @@ pub enum ImportFunctionKind {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub enum MethodKind {
Constructor,
Operation(Operation),
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub struct Operation {
pub is_static: bool,
pub kind: OperationKind,
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub enum OperationKind {
Regular,
Getter(Option<Ident>),
@ -113,6 +122,7 @@ pub enum OperationKind {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub struct ImportStatic {
pub vis: syn::Visibility,
pub ty: syn::Type,
@ -122,6 +132,7 @@ pub struct ImportStatic {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub struct ImportType {
pub vis: syn::Visibility,
pub rust_name: Ident,
@ -133,6 +144,7 @@ pub struct ImportType {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub struct ImportEnum {
/// The Rust enum's visibility
pub vis: syn::Visibility,
@ -147,6 +159,7 @@ pub struct ImportEnum {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub struct Function {
pub name: String,
pub arguments: Vec<syn::ArgCaptured>,
@ -156,6 +169,7 @@ pub struct Function {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub struct Struct {
pub name: Ident,
pub fields: Vec<StructField>,
@ -163,6 +177,7 @@ pub struct Struct {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub struct StructField {
pub name: Ident,
pub struct_name: Ident,
@ -174,6 +189,7 @@ pub struct StructField {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub struct Enum {
pub name: Ident,
pub variants: Vec<Variant>,
@ -181,6 +197,7 @@ pub struct Enum {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
#[derive(Clone)]
pub struct Variant {
pub name: Ident,
pub value: u32,
@ -202,6 +219,7 @@ pub enum TypeLocation {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq))]
#[derive(Clone)]
pub struct Const {
pub vis: syn::Visibility,
pub name: Ident,
@ -211,6 +229,7 @@ pub struct Const {
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq))]
#[derive(Clone)]
/// same as webidl::ast::ConstValue
pub enum ConstValue {
BooleanLiteral(bool),