include attributes of script tags in ast

Author: jrmajor

packages/svelte/src/compiler/legacy.js

@@ -86,11 +86,15 @@ export function convert(source, ast) {
 				if (instance) {
 					// @ts-ignore
 					delete instance.parent;
+					// @ts-ignore
+					delete instance.attributes;
 				}
 
 				if (module) {
 					// @ts-ignore
 					delete module.parent;
+					// @ts-ignore
+					delete module.attributes;
 				}
 
 				return {

packages/svelte/src/compiler/phases/1-parse/read/script.js

@@ -63,6 +63,7 @@ export function read_script(parser, start, attributes) {
 		end: parser.index,
 		context: get_context(attributes),
 		content: ast,
-		parent: null
+		parent: null,
+		attributes: attributes
 	};
 }

packages/svelte/src/compiler/types/template.d.ts

@@ -467,6 +467,7 @@ export interface Script extends BaseNode {
 	type: 'Script';
 	context: string;
 	content: Program;
+	attributes: Array<Attribute | SpreadAttribute | Directive>;
 }
 
 declare module 'estree' {

packages/svelte/tests/parser-modern/samples/comment-before-script/output.json

@@ -133,6 +133,23 @@
 					"value": "should not error out"
 				}
 			]
-		}
+		},
+		"attributes": [
+			{
+				"type": "Attribute",
+				"start": 36,
+				"end": 45,
+				"name": "lang",
+				"value": [
+					{
+						"start": 42,
+						"end": 44,
+						"type": "Text",
+						"raw": "ts",
+						"data": "ts"
+					}
+				]
+			}
+		]
 	}
 }

packages/svelte/tests/parser-modern/samples/snippets/output.json

@@ -206,6 +206,23 @@
 			},
 			"body": [],
 			"sourceType": "module"
-		}
+		},
+		"attributes": [
+			{
+				"type": "Attribute",
+				"start": 8,
+				"end": 17,
+				"name": "lang",
+				"value": [
+					{
+						"start": 14,
+						"end": 16,
+						"type": "Text",
+						"raw": "ts",
+						"data": "ts"
+					}
+				]
+			}
+		]
 	}
 }

packages/svelte/tests/parser-modern/samples/typescript-in-event-handler/output.json

@@ -477,6 +477,23 @@
 				}
 			],
 			"sourceType": "module"
-		}
+		},
+		"attributes": [
+			{
+				"type": "Attribute",
+				"start": 8,
+				"end": 17,
+				"name": "lang",
+				"value": [
+					{
+						"start": 14,
+						"end": 16,
+						"type": "Text",
+						"raw": "ts",
+						"data": "ts"
+					}
+				]
+			}
+		]
 	}
 }

packages/svelte/types/index.d.ts

@@ -1690,6 +1690,7 @@ declare module 'svelte/compiler' {
 		type: 'Script';
 		context: string;
 		content: Program;
+		attributes: Array<Attribute | SpreadAttribute | Directive>;
 	}
 	/**
 	 * The result of a preprocessor run. If the preprocessor does not return a result, it is assumed that the code is unchanged.