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-rw-r--r--devtools/shared/validate-breakpoint.jsm49
1 files changed, 49 insertions, 0 deletions
diff --git a/devtools/shared/validate-breakpoint.jsm b/devtools/shared/validate-breakpoint.jsm
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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/. */
+
+"use strict";
+
+// Because this function is used from SessionDataHelpers.jsm,
+// this has to be a JSM.
+
+var EXPORTED_SYMBOLS = ["validateBreakpointLocation"];
+
+/**
+ * Given a breakpoint location object, throws if the breakpoint look invalid
+ */
+function validateBreakpointLocation({ sourceUrl, sourceId, line, column }) {
+ if (!sourceUrl && !sourceId) {
+ throw new Error(
+ `Breakpoints expect to have either a sourceUrl or a sourceId.`
+ );
+ }
+ if (sourceUrl && typeof sourceUrl != "string") {
+ throw new Error(
+ `Breakpoints expect to have sourceUrl string, got ${typeof sourceUrl} instead.`
+ );
+ }
+ // sourceId may be undefined for some sources keyed by URL
+ if (sourceId && typeof sourceId != "string") {
+ throw new Error(
+ `Breakpoints expect to have sourceId string, got ${typeof sourceId} instead.`
+ );
+ }
+ if (typeof line != "number") {
+ throw new Error(
+ `Breakpoints expect to have line number, got ${typeof line} instead.`
+ );
+ }
+ if (typeof column != "number") {
+ throw new Error(
+ `Breakpoints expect to have column number, got ${typeof column} instead.`
+ );
+ }
+}
+
+// Allow this JSM to also be loaded as a CommonJS module
+// Because this module is used from the worker thread,
+// and workers can't load JSMs.
+if (typeof module == "object") {
+ module.exports.validateBreakpointLocation = validateBreakpointLocation;
+}