refactor(seld-json-lint): extract seld/json_lint into the shirabe-seld-json-lint crate

Move `Seld\JsonLint` out of shirabe-external-packages and into its own
crate, so the path is `shirabe_seld_json_lint::ParsingException` instead
of `shirabe_external_packages::seld::json_lint::ParsingException`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

2 files changed, 60 insertions, 0 deletions

diff --git a/crates/shirabe-seld-json-lint/src/lib.rs b/crates/shirabe-seld-json-lint/src/lib.rs
new file mode 100644
index 00000000..2165c8f2
--- /dev/null
+++ b/crates/shirabe-seld-json-lint/src/lib.rs
@@ -0,0 +1,15 @@
+//! Partial port of seld/jsonlint.
+//!
+//! The parser, lexer, and duplicate-key exception (`JsonParser`, `Lexer`,
+//! `DuplicateKeyException`) are intentionally not ported: JSON syntax validation now relies on
+//! serde_json, and duplicate-key detection is done with a hand-written serde visitor, so
+//! jsonlint's own parsing machinery is no longer needed.
+//!
+//! `ParsingException` is kept because it is the exception type thrown for invalid JSON and is
+//! matched (via downcast) across the codebase as an error-kind signal; it also carries detail
+//! such as the error line. Porting it keeps both the thrown exception class and the information
+//! it carries unchanged.
+
+pub mod parsing_exception;
+
+pub use parsing_exception::*;
diff --git a/crates/shirabe-seld-json-lint/src/parsing_exception.rs b/crates/shirabe-seld-json-lint/src/parsing_exception.rs
new file mode 100644
index 00000000..9d3eaa57
--- /dev/null
+++ b/crates/shirabe-seld-json-lint/src/parsing_exception.rs
@@ -0,0 +1,45 @@
+//! ref: composer/vendor/seld/jsonlint/src/Seld/JsonLint/ParsingException.php
+
+#[derive(Debug, Clone, Default)]
+pub struct ParsingExceptionLoc {
+    pub first_line: i64,
+    pub first_column: i64,
+    pub last_line: i64,
+    pub last_column: i64,
+}
+
+#[derive(Debug, Clone)]
+pub enum ParsingExceptionToken {
+    Name(String),
+    Symbol(i64),
+}
+
+#[derive(Debug, Clone, Default)]
+pub struct ParsingExceptionDetails {
+    pub text: Option<String>,
+    pub token: Option<ParsingExceptionToken>,
+    pub line: Option<i64>,
+    pub loc: Option<ParsingExceptionLoc>,
+    pub expected: Option<Vec<String>>,
+}
+
+#[derive(Debug)]
+pub struct ParsingException {
+    inner: shirabe_php_shim::Exception,
+    pub(crate) details: Box<ParsingExceptionDetails>,
+}
+
+impl ParsingException {
+    pub fn new(message: String, details: ParsingExceptionDetails) -> Self {
+        Self {
+            inner: shirabe_php_shim::Exception::new(message),
+            details: Box::new(details),
+        }
+    }
+
+    pub fn get_details(&self) -> &ParsingExceptionDetails {
+        &self.details
+    }
+}
+
+shirabe_php_shim::impl_php_exception!(ParsingException, inner, r"Seld\JsonLint\ParsingException");