Migrate to `yarn` monorepo (#157)

* chore: use monorepo

* chore: scaffold astro-scripts

* chore: move tests inside packages/astro

* chore: refactor tests, add scripts

* chore: move parser to own module

* chore: move runtime to packages/astro

* fix: move parser to own package

* test: fix prettier-plugin-astro tests

* fix: tests

* chore: update package-lock

* chore: add changesets

* fix: cleanup examples

* fix: starter example

* chore: update changeset config

* chore: update changeset config

* chore: setup changeset release workflow

* chore: bump lockfiles

* chore: prism => astro-prism

* fix: tsc --emitDeclarationOnly

* chore: final cleanup, switch to yarn

* chore: add lerna

* chore: update workflows to yarn

* chore: update workflows

* chore: remove lint workflow

* chore: add astro-dev script

* chore: add symlinked README

1 files changed, 46 insertions, 0 deletions

diff --git a/packages/astro-parser/src/utils/error.ts b/packages/astro-parser/src/utils/error.ts
new file mode 100644
index 000000000..8ebb5b093
--- /dev/null
+++ b/packages/astro-parser/src/utils/error.ts
@@ -0,0 +1,46 @@
+// @ts-nocheck
+
+import { locate } from 'locate-character';
+import get_code_frame from './get_code_frame.js';
+
+export class CompileError extends Error {
+  code: string;
+  start: { line: number; column: number };
+  end: { line: number; column: number };
+  pos: number;
+  filename: string;
+  frame: string;
+
+  toString() {
+    return `${this.message} (${this.start.line}:${this.start.column})\n${this.frame}`;
+  }
+}
+
+/** Throw CompileError */
+export default function error(
+  message: string,
+  props: {
+    name: string;
+    code: string;
+    source: string;
+    filename: string;
+    start: number;
+    end?: number;
+  }
+): never {
+  const err = new CompileError(message);
+  err.name = props.name;
+
+  const start = locate(props.source, props.start, { offsetLine: 1 });
+  const end = locate(props.source, props.end || props.start, { offsetLine: 1 });
+
+  err.code = props.code;
+  err.start = start;
+  err.end = end;
+  err.pos = props.start;
+  err.filename = props.filename;
+
+  err.frame = get_code_frame(props.source, start.line - 1, start.column);
+
+  throw err;
+}