aldrin-parser 0.13.0

Aldrin schema parser library.
Documentation 
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use super::{Error, ErrorKind};
use crate::ast::{NamedRef, NamedRefKind};
use crate::diag::{Diagnostic, DiagnosticKind, Renderer};
use crate::validate::Validate;
use crate::{util, Parser};

#[derive(Debug)]
pub(crate) struct ConstIntNotFound {
    schema_name: String,
    named_ref: NamedRef,
    candidate: Option<String>,
}

impl ConstIntNotFound {
    pub(crate) fn validate(named_ref: &NamedRef, validate: &mut Validate) {
        let (schema, ident) = match named_ref.kind() {
            NamedRefKind::Intern(ident) => (validate.get_current_schema(), ident),

            NamedRefKind::Extern(schema, ident) => {
                let Some(schema) = validate.get_schema(schema.value()) else {
                    return;
                };

                (schema, ident)
            }
        };

        for def in schema.definitions() {
            if def.name().value() == ident.value() {
                return;
            }
        }

        let candidate = util::did_you_mean_const_int(schema, ident.value()).map(ToOwned::to_owned);

        validate.add_error(Self {
            schema_name: validate.schema_name().to_owned(),
            named_ref: named_ref.clone(),
            candidate,
        });
    }
}

impl Diagnostic for ConstIntNotFound {
    fn kind(&self) -> DiagnosticKind {
        DiagnosticKind::Error
    }

    fn schema_name(&self) -> &str {
        &self.schema_name
    }

    fn render(&self, renderer: &Renderer, parser: &Parser) -> String {
        let (title, schema) = match self.named_ref.kind() {
            NamedRefKind::Intern(ident) => (
                format!("integer constant `{}` not found", ident.value()),
                None,
            ),

            NamedRefKind::Extern(schema, ident) => (
                format!(
                    "integer constant `{}::{}` not found",
                    schema.value(),
                    ident.value()
                ),
                Some(schema),
            ),
        };

        let mut report = renderer.error(title);

        if let Some(schema) = parser.get_schema(&self.schema_name) {
            report = report.snippet(schema, self.named_ref.span(), "integer constant used here");
        }

        if let Some(ref candidate) = self.candidate {
            let msg = match schema {
                Some(schema) => format!("did you mean `{}::{candidate}`?", schema.value()),
                None => format!("did you mean `{candidate}`?"),
            };

            report = report.help(msg);
        }

        report.render()
    }
}

impl From<ConstIntNotFound> for Error {
    fn from(e: ConstIntNotFound) -> Self {
        Self {
            kind: ErrorKind::ConstIntNotFound(e),
        }
    }
}