path: root/tests/xxx_swc.rs

extern crate micromark;
extern crate swc_common;
extern crate swc_ecma_ast;
extern crate swc_ecma_codegen;
mod test_utils;
use pretty_assertions::assert_eq;
use swc_common::{sync::Lrc, FilePathMapping, SourceMap};
use swc_ecma_codegen::{text_writer::JsWriter, Emitter};
use test_utils::{
    hast,
    to_swc::{to_swc, Program},
};

// To do: share with `xxx_document`.
fn serialize(program: &Program) -> String {
    let mut buf = vec![];
    let cm = Lrc::new(SourceMap::new(FilePathMapping::empty()));
    // let comm = &program.comments as &dyn swc_common::comments::Comments;
    {
        let mut emitter = Emitter {
            cfg: swc_ecma_codegen::Config {
                ..Default::default()
            },
            cm: cm.clone(),
            // To do: figure out how to pass them.
            comments: None,
            wr: JsWriter::new(cm, "\n", &mut buf, None),
        };

        emitter.emit_module(&program.module).unwrap();
    }

    String::from_utf8_lossy(&buf).to_string()
}

#[test]
fn swc() -> Result<(), String> {
    let comment_ast = to_swc(&hast::Node::Comment(hast::Comment {
        value: "a".into(),
        position: None,
    }))?;

    assert_eq!(
        comment_ast,
        Program {
            module: swc_ecma_ast::Module {
                shebang: None,
                body: vec![swc_ecma_ast::ModuleItem::Stmt(swc_ecma_ast::Stmt::Expr(
                    swc_ecma_ast::ExprStmt {
                        expr: Box::new(swc_ecma_ast::Expr::JSXFragment(
                            swc_ecma_ast::JSXFragment {
                                opening: swc_ecma_ast::JSXOpeningFragment {
                                    span: swc_common::DUMMY_SP,
                                },
                                closing: swc_ecma_ast::JSXClosingFragment {
                                    span: swc_common::DUMMY_SP,
                                },
                                children: vec![swc_ecma_ast::JSXElementChild::JSXExprContainer(
                                    swc_ecma_ast::JSXExprContainer {
                                        expr: swc_ecma_ast::JSXExpr::JSXEmptyExpr(
                                            swc_ecma_ast::JSXEmptyExpr {
                                                span: swc_common::DUMMY_SP,
                                            }
                                        ),
                                        span: swc_common::DUMMY_SP,
                                    },
                                )],
                                span: swc_common::DUMMY_SP,
                            }
                        )),
                        span: swc_common::DUMMY_SP,
                    },
                ))],
                span: swc_common::DUMMY_SP,
            },
            comments: vec![swc_common::comments::Comment {
                kind: swc_common::comments::CommentKind::Block,
                text: "a".into(),
                span: swc_common::DUMMY_SP,
            }],
        },
        "should support a `Comment`",
    );

    assert_eq!(
        serialize(&comment_ast),
        // To do: comment should be in this.
        "<>{}</>;\n",
        "should support a `Comment` (serialize)",
    );

    let element_ast = to_swc(&hast::Node::Element(hast::Element {
        tag_name: "a".into(),
        properties: vec![(
            "className".into(),
            hast::PropertyValue::SpaceSeparated(vec!["b".into()]),
        )],
        children: vec![],
        position: None,
    }))?;

    assert_eq!(
        element_ast,
        Program {
            module: swc_ecma_ast::Module {
                shebang: None,
                body: vec![swc_ecma_ast::ModuleItem::Stmt(swc_ecma_ast::Stmt::Expr(
                    swc_ecma_ast::ExprStmt {
                        expr: Box::new(swc_ecma_ast::Expr::JSXElement(Box::new(
                            swc_ecma_ast::JSXElement {
                                opening: swc_ecma_ast::JSXOpeningElement {
                                    name: swc_ecma_ast::JSXElementName::Ident(
                                        swc_ecma_ast::Ident {
                                            span: swc_common::DUMMY_SP,
                                            sym: "a".into(),
                                            optional: false,
                                        }
                                    ),
                                    attrs: vec![swc_ecma_ast::JSXAttrOrSpread::JSXAttr(
                                        swc_ecma_ast::JSXAttr {
                                            name: swc_ecma_ast::JSXAttrName::Ident(
                                                swc_ecma_ast::Ident {
                                                    sym: "className".into(),
                                                    span: swc_common::DUMMY_SP,
                                                    optional: false,
                                                }
                                            ),
                                            value: Some(swc_ecma_ast::JSXAttrValue::Lit(
                                                swc_ecma_ast::Lit::Str(swc_ecma_ast::Str {
                                                    value: "b".into(),
                                                    span: swc_common::DUMMY_SP,
                                                    raw: None,
                                                })
                                            )),
                                            span: swc_common::DUMMY_SP,
                                        },
                                    )],
                                    self_closing: true,
                                    type_args: None,
                                    span: swc_common::DUMMY_SP,
                                },
                                closing: None,
                                children: vec![],
                                span: swc_common::DUMMY_SP,
                            }
                        ))),
                        span: swc_common::DUMMY_SP,
                    },
                ))],
                span: swc_common::DUMMY_SP,
            },
            comments: vec![],
        },
        "should support an `Element`",
    );

    assert_eq!(
        serialize(&element_ast),
        "<a className=\"b\"/>;\n",
        "should support an `Element` (serialize)",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::Element(hast::Element {
            tag_name: "a".into(),
            properties: vec![],
            children: vec![hast::Node::Text(hast::Text {
                value: "a".into(),
                position: None,
            })],
            position: None,
        }))?),
        "<a >{\"a\"}</a>;\n",
        "should support an `Element` w/ children",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::Element(hast::Element {
            tag_name: "a".into(),
            properties: vec![("b".into(), hast::PropertyValue::String("c".into()),)],
            children: vec![],
            position: None,
        }))?),
        "<a b=\"c\"/>;\n",
        "should support an `Element` w/ a string attribute",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::Element(hast::Element {
            tag_name: "a".into(),
            properties: vec![("b".into(), hast::PropertyValue::Boolean(true),)],
            children: vec![],
            position: None,
        }))?),
        "<a b/>;\n",
        "should support an `Element` w/ a boolean (true) attribute",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::Element(hast::Element {
            tag_name: "a".into(),
            properties: vec![("b".into(), hast::PropertyValue::Boolean(false),)],
            children: vec![],
            position: None,
        }))?),
        "<a />;\n",
        "should support an `Element` w/ a boolean (false) attribute",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::Element(hast::Element {
            tag_name: "a".into(),
            properties: vec![(
                "b".into(),
                hast::PropertyValue::CommaSeparated(vec!["c".into(), "d".into()]),
            )],
            children: vec![],
            position: None,
        }))?),
        "<a b=\"c, d\"/>;\n",
        "should support an `Element` w/ a comma-separated attribute",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::Element(hast::Element {
            tag_name: "a".into(),
            properties: vec![
                ("data123".into(), hast::PropertyValue::Boolean(true),),
                ("dataFoo".into(), hast::PropertyValue::Boolean(true),),
                ("dataBAR".into(), hast::PropertyValue::Boolean(true),)
            ],
            children: vec![],
            position: None,
        }))?),
        "<a data-123 data-foo data-b-a-r/>;\n",
        "should support an `Element` w/ data attributes",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::Element(hast::Element {
            tag_name: "a".into(),
            properties: vec![
                ("role".into(), hast::PropertyValue::Boolean(true),),
                ("ariaValueNow".into(), hast::PropertyValue::Boolean(true),),
                ("ariaDescribedBy".into(), hast::PropertyValue::Boolean(true),)
            ],
            children: vec![],
            position: None,
        }))?),
        "<a role aria-valuenow aria-describedby/>;\n",
        "should support an `Element` w/ aria attributes",
    );

    let mdx_element_ast = to_swc(&hast::Node::MdxJsxElement(hast::MdxJsxElement {
        name: None,
        attributes: vec![],
        children: vec![],
        position: None,
    }))?;

    assert_eq!(
        mdx_element_ast,
        Program {
            module: swc_ecma_ast::Module {
                shebang: None,
                body: vec![swc_ecma_ast::ModuleItem::Stmt(swc_ecma_ast::Stmt::Expr(
                    swc_ecma_ast::ExprStmt {
                        expr: Box::new(swc_ecma_ast::Expr::JSXFragment(
                            swc_ecma_ast::JSXFragment {
                                opening: swc_ecma_ast::JSXOpeningFragment {
                                    span: swc_common::DUMMY_SP,
                                },
                                closing: swc_ecma_ast::JSXClosingFragment {
                                    span: swc_common::DUMMY_SP,
                                },
                                children: vec![],
                                span: swc_common::DUMMY_SP,
                            }
                        )),
                        span: swc_common::DUMMY_SP,
                    },
                ))],
                span: swc_common::DUMMY_SP,
            },
            comments: vec![],
        },
        "should support an `MdxElement` (fragment)",
    );

    assert_eq!(
        serialize(&mdx_element_ast),
        "<></>;\n",
        "should support an `MdxElement` (fragment, serialize)",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::MdxJsxElement(hast::MdxJsxElement {
            name: Some("a".into()),
            attributes: vec![],
            children: vec![],
            position: None,
        }))?),
        "<a />;\n",
        "should support an `MdxElement` (element, no children)",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::MdxJsxElement(hast::MdxJsxElement {
            name: Some("a:b".into()),
            attributes: vec![],
            children: vec![],
            position: None,
        }))?),
        "<a:b />;\n",
        "should support an `MdxElement` (element, namespace id)",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::MdxJsxElement(hast::MdxJsxElement {
            name: Some("a.b.c".into()),
            attributes: vec![],
            children: vec![],
            position: None,
        }))?),
        "<a.b.c />;\n",
        "should support an `MdxElement` (element, member expression)",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::MdxJsxElement(hast::MdxJsxElement {
            name: Some("a".into()),
            attributes: vec![],
            children: vec![hast::Node::Text(hast::Text {
                value: "b".into(),
                position: None,
            })],
            position: None,
        }))?),
        "<a >{\"b\"}</a>;\n",
        "should support an `MdxElement` (element, children)",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::MdxJsxElement(hast::MdxJsxElement {
            name: Some("a".into()),
            attributes: vec![hast::AttributeContent::Property(hast::MdxJsxAttribute {
                name: "b".into(),
                value: None
            })],
            children: vec![],
            position: None,
        }))?),
        "<a b/>;\n",
        "should support an `MdxElement` (element, boolean attribute)",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::MdxJsxElement(hast::MdxJsxElement {
            name: Some("a".into()),
            attributes: vec![hast::AttributeContent::Property(hast::MdxJsxAttribute {
                name: "b".into(),
                value: Some(hast::AttributeValue::Literal("c".into()))
            })],
            children: vec![],
            position: None,
        }))?),
        "<a b=\"c\"/>;\n",
        "should support an `MdxElement` (element, attribute w/ literal value)",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::MdxJsxElement(hast::MdxJsxElement {
            name: Some("a".into()),
            attributes: vec![hast::AttributeContent::Property(hast::MdxJsxAttribute {
                name: "b".into(),
                value: Some(hast::AttributeValue::Expression("c".into()))
            })],
            children: vec![],
            position: None,
        }))?),
        "<a b={c}/>;\n",
        "should support an `MdxElement` (element, attribute w/ expression value)",
    );

    assert_eq!(
        serialize(&to_swc(&hast::Node::MdxJsxElement(hast::MdxJsxElement {
            name: Some("a".into()),
            attributes: vec![hast::AttributeContent::Expression("...c".into())],
            children: vec![],
            position: None,
        }))?),
        "<a {...c}/>;\n",
        "should support an `MdxElement` (element, expression attribute)",
    );

    let mdx_expression_ast = to_swc(&hast::Node::MdxExpression(hast::MdxExpression {
        value: "a".into(),
        position: None,
    }))?;

    assert_eq!(
        mdx_expression_ast,
        Program {
            module: swc_ecma_ast::Module {
                shebang: None,
                body: vec![swc_ecma_ast::ModuleItem::Stmt(swc_ecma_ast::Stmt::Expr(
                    swc_ecma_ast::ExprStmt {
                        expr: Box::new(swc_ecma_ast::Expr::JSXFragment(
                            swc_ecma_ast::JSXFragment {
                                opening: swc_ecma_ast::JSXOpeningFragment {
                                    span: swc_common::DUMMY_SP,
                                },
                                closing: swc_ecma_ast::JSXClosingFragment {
                                    span: swc_common::DUMMY_SP,
                                },
                                children: vec![swc_ecma_ast::JSXElementChild::JSXExprContainer(
                                    swc_ecma_ast::JSXExprContainer {
                                        expr: swc_ecma_ast::JSXExpr::Expr(Box::new(
                                            swc_ecma_ast::Expr::Ident(swc_ecma_ast::Ident {
                                                // To do: fix positions.
                                                span: swc_common::Span {
                                                    lo: swc_common::BytePos(1),
                                                    hi: swc_common::BytePos(2),
                                                    ctxt: swc_common::SyntaxContext::empty(),
                                                },
                                                sym: "a".into(),
                                                optional: false,
                                            })
                                        )),
                                        span: swc_common::DUMMY_SP,
                                    },
                                )],
                                span: swc_common::DUMMY_SP,
                            }
                        )),
                        span: swc_common::DUMMY_SP,
                    },
                ))],
                span: swc_common::DUMMY_SP,
            },
            comments: vec![],
        },
        "should support an `MdxExpression`",
    );

    assert_eq!(
        serialize(&mdx_expression_ast),
        "<>{a}</>;\n",
        "should support an `MdxExpression` (serialize)",
    );

    let mdxjs_esm_ast = to_swc(&hast::Node::MdxjsEsm(hast::MdxjsEsm {
        value: "import a from 'b'".into(),
        position: None,
    }))?;

    assert_eq!(
        mdxjs_esm_ast,
        Program {
            module: swc_ecma_ast::Module {
                shebang: None,
                body: vec![swc_ecma_ast::ModuleItem::ModuleDecl(
                    swc_ecma_ast::ModuleDecl::Import(swc_ecma_ast::ImportDecl {
                        specifiers: vec![swc_ecma_ast::ImportSpecifier::Default(
                            swc_ecma_ast::ImportDefaultSpecifier {
                                local: swc_ecma_ast::Ident {
                                    sym: "a".into(),
                                    optional: false,
                                    // To do: fix positions.
                                    span: swc_common::Span {
                                        lo: swc_common::BytePos(8),
                                        hi: swc_common::BytePos(9),
                                        ctxt: swc_common::SyntaxContext::empty(),
                                    },
                                },
                                // To do: fix positions.
                                span: swc_common::Span {
                                    lo: swc_common::BytePos(8),
                                    hi: swc_common::BytePos(9),
                                    ctxt: swc_common::SyntaxContext::empty(),
                                },
                            }
                        )],
                        src: Box::new(swc_ecma_ast::Str {
                            value: "b".into(),
                            // To do: fix positions.
                            span: swc_common::Span {
                                lo: swc_common::BytePos(15),
                                hi: swc_common::BytePos(18),
                                ctxt: swc_common::SyntaxContext::empty(),
                            },
                            raw: Some("\'b\'".into()),
                        }),
                        type_only: false,
                        asserts: None,
                        // To do: fix positions.
                        span: swc_common::Span {
                            lo: swc_common::BytePos(1),
                            hi: swc_common::BytePos(18),
                            ctxt: swc_common::SyntaxContext::empty(),
                        },
                    })
                )],
                span: swc_common::DUMMY_SP,
            },
            comments: vec![],
        },
        "should support an `MdxjsEsm`",
    );

    assert_eq!(
        serialize(&mdxjs_esm_ast),
        "import a from 'b';\n",
        "should support an `MdxjsEsm` (serialize)",
    );

    let root_ast = to_swc(&hast::Node::Root(hast::Root {
        children: vec![hast::Node::Text(hast::Text {
            value: "a".into(),
            position: None,
        })],
        position: None,
    }))?;

    assert_eq!(
        root_ast,
        Program {
            module: swc_ecma_ast::Module {
                shebang: None,
                body: vec![swc_ecma_ast::ModuleItem::Stmt(swc_ecma_ast::Stmt::Expr(
                    swc_ecma_ast::ExprStmt {
                        expr: Box::new(swc_ecma_ast::Expr::JSXFragment(
                            swc_ecma_ast::JSXFragment {
                                opening: swc_ecma_ast::JSXOpeningFragment {
                                    span: swc_common::DUMMY_SP,
                                },
                                closing: swc_ecma_ast::JSXClosingFragment {
                                    span: swc_common::DUMMY_SP,
                                },
                                children: vec![swc_ecma_ast::JSXElementChild::JSXExprContainer(
                                    swc_ecma_ast::JSXExprContainer {
                                        expr: swc_ecma_ast::JSXExpr::Expr(Box::new(
                                            swc_ecma_ast::Expr::Lit(swc_ecma_ast::Lit::Str(
                                                swc_ecma_ast::Str {
                                                    value: "a".into(),
                                                    span: swc_common::DUMMY_SP,
                                                    raw: None,
                                                }
                                            ),)
                                        )),
                                        span: swc_common::DUMMY_SP,
                                    },
                                )],
                                span: swc_common::DUMMY_SP,
                            }
                        )),
                        span: swc_common::DUMMY_SP,
                    },
                ))],
                span: swc_common::DUMMY_SP,
            },
            comments: vec![],
        },
        "should support a `Root`",
    );

    assert_eq!(
        serialize(&root_ast),
        "<>{\"a\"}</>;\n",
        "should support a `Root` (serialize)",
    );

    let text_ast = to_swc(&hast::Node::Text(hast::Text {
        value: "a".into(),
        position: None,
    }))?;

    assert_eq!(
        text_ast,
        Program {
            module: swc_ecma_ast::Module {
                shebang: None,
                body: vec![swc_ecma_ast::ModuleItem::Stmt(swc_ecma_ast::Stmt::Expr(
                    swc_ecma_ast::ExprStmt {
                        expr: Box::new(swc_ecma_ast::Expr::JSXFragment(
                            swc_ecma_ast::JSXFragment {
                                opening: swc_ecma_ast::JSXOpeningFragment {
                                    span: swc_common::DUMMY_SP,
                                },
                                closing: swc_ecma_ast::JSXClosingFragment {
                                    span: swc_common::DUMMY_SP,
                                },
                                children: vec![swc_ecma_ast::JSXElementChild::JSXExprContainer(
                                    swc_ecma_ast::JSXExprContainer {
                                        expr: swc_ecma_ast::JSXExpr::Expr(Box::new(
                                            swc_ecma_ast::Expr::Lit(swc_ecma_ast::Lit::Str(
                                                swc_ecma_ast::Str {
                                                    value: "a".into(),
                                                    span: swc_common::DUMMY_SP,
                                                    raw: None,
                                                }
                                            ),)
                                        )),
                                        span: swc_common::DUMMY_SP,
                                    },
                                )],
                                span: swc_common::DUMMY_SP,
                            }
                        )),
                        span: swc_common::DUMMY_SP,
                    },
                ))],
                span: swc_common::DUMMY_SP,
            },
            comments: vec![],
        },
        "should support a `Text`",
    );

    assert_eq!(
        serialize(&text_ast),
        "<>{\"a\"}</>;\n",
        "should support a `Text` (serialize)",
    );

    Ok(())
}