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-rw-r--r--devtools/client/debugger/src/utils/function.js37
1 files changed, 37 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/utils/function.js b/devtools/client/debugger/src/utils/function.js
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index 0000000000..39d0f5a9a7
--- /dev/null
+++ b/devtools/client/debugger/src/utils/function.js
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+import { isFulfilled } from "./async-value";
+import { findClosestFunction } from "./ast";
+import { correctIndentation } from "./indentation";
+
+export function findFunctionText(line, source, sourceTextContent, symbols) {
+ const func = findClosestFunction(symbols, {
+ sourceId: source.id,
+ line,
+ column: Infinity,
+ });
+
+ if (
+ source.isWasm ||
+ !func ||
+ !sourceTextContent ||
+ !isFulfilled(sourceTextContent) ||
+ sourceTextContent.value.type !== "text"
+ ) {
+ return null;
+ }
+
+ const {
+ location: { start, end },
+ } = func;
+ const lines = sourceTextContent.value.value.split("\n");
+ const firstLine = lines[start.line - 1].slice(start.column);
+ const lastLine = lines[end.line - 1].slice(0, end.column);
+ const middle = lines.slice(start.line, end.line - 1);
+ const functionText = [firstLine, ...middle, lastLine].join("\n");
+ const indentedFunctionText = correctIndentation(functionText);
+
+ return indentedFunctionText;
+}