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use super::super::{DescriptorIssueCode as Code, policy::Policy};
use super::Vue1DescriptorObservation;
use crate::container::{Vue, vue::DescriptorOptions};
use crate::dialect::vue1::surface::parse_component_block;
use vize_l0::{Allocator, Span};
impl Vue {
/// Explicit V1/Vue/default-delimiter, scriptless/styleless, zero-attribute selection.
/// The original splitter runs once. Unsupported envelopes never start the
/// Component parser; supported envelopes retain its complete normal owner.
/// ```
/// use vize_l0::{Allocator, config::{VueDialect, VueVersion}};
/// use vize_l1::{SurfaceParseOptions, container::{Vue, vue::DescriptorOptions}};
/// let arena = Allocator::default();
/// let owner = Vue.observe_vue1_descriptor(&arena,
/// "<template>{{ value }}</template>", DescriptorOptions {
/// version: VueVersion::V1, dialect: VueDialect::Vue,
/// template: SurfaceParseOptions::default(),
/// });
/// let selected = owner.selected().unwrap();
/// let component = selected.component();
/// let text = component.text_for(component.children().next().unwrap()).unwrap();
/// assert_eq!(text.binding().syntax().unwrap().source().text(), "value");
/// ```
pub fn observe_vue1_descriptor<'a>(
&self,
allocator: &'a Allocator,
source: &'a str,
options: DescriptorOptions,
) -> Vue1DescriptorObservation<'a> {
let mut state = Policy::new_vue1(allocator, source, options);
let container = crate::container::vue::split_with(
allocator,
source,
|index, block, uncertain, self_closing, closing| {
let code = if block.name.eq_ignore_ascii_case("script") {
Some(Code::UnsupportedScript)
} else if block.name.eq_ignore_ascii_case("style") {
Some(Code::UnsupportedStyle)
} else if !block.name.eq_ignore_ascii_case("template") {
Some(Code::UnsupportedBlock)
} else if !block.attrs.is_empty() {
// The emitted original header has already been scanned.
// This first V1 envelope refuses attributes in O(1), with
// no second header classification or value observation.
Some(Code::UnsupportedAttribute)
} else {
None
};
if let Some(code) = code {
state.issue(code, Some(index), block.open_tag);
} else {
state.record(index, block, uncertain, self_closing, closing);
}
},
);
state.finish();
let mut owner = Vue1DescriptorObservation {
container,
root: state.root,
options,
issues: state.issues,
selection: state.template,
component: None,
};
if owner.issues.is_empty() && owner.container.errors.is_empty() {
if let Some((selection, _)) = super::view::frame(&owner) {
owner.component = Some(parse_component_block(allocator, selection.selection.block));
#[cfg(test)]
super::hooks::after_park(&owner);
} else {
owner.issues.push(super::super::DescriptorIssue {
code: Code::InvalidSourceFrame,
container_index: owner.selection.as_ref().map(|s| s.selection.index),
span: Span::new(0, 0),
});
}
}
owner
}
}