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-rw-r--r--devtools/client/debugger/src/utils/dbg.js100
1 files changed, 100 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/utils/dbg.js b/devtools/client/debugger/src/utils/dbg.js
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+++ b/devtools/client/debugger/src/utils/dbg.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 { prefs, asyncStore, features } from "./prefs";
+import { getDocument } from "./editor/source-documents";
+import { wasmOffsetToLine } from "./wasm";
+
+function getThreadFront(dbg) {
+ return dbg.targetCommand.targetFront.threadFront;
+}
+
+function findSource(dbg, url) {
+ const sources = dbg.selectors.getSourceList();
+ return sources.find(s => (s.url || "").includes(url));
+}
+
+function findSources(dbg, url) {
+ const sources = dbg.selectors.getSourceList();
+ return sources.filter(s => (s.url || "").includes(url));
+}
+
+function evaluate(dbg, expression) {
+ return dbg.client.evaluate(expression);
+}
+
+function bindSelectors(obj) {
+ return Object.keys(obj.selectors).reduce((bound, selector) => {
+ bound[selector] = (a, b, c) =>
+ obj.selectors[selector](obj.store.getState(), a, b, c);
+ return bound;
+ }, {});
+}
+
+function getCM() {
+ const cm = document.querySelector(".CodeMirror");
+ return cm?.CodeMirror;
+}
+
+function formatMappedLocation(mappedLocation) {
+ const { location, generatedLocation } = mappedLocation;
+ return {
+ original: `(${location.line}, ${location.column})`,
+ generated: `(${generatedLocation.line}, ${generatedLocation.column})`,
+ };
+}
+
+function formatMappedLocations(locations) {
+ return console.table(locations.map(loc => formatMappedLocation(loc)));
+}
+
+function formatSelectedColumnBreakpoints(dbg) {
+ const positions = dbg.selectors.getBreakpointPositionsForSource(
+ dbg.selectors.getSelectedSource().id
+ );
+
+ return formatMappedLocations(positions);
+}
+
+function getDocumentForUrl(dbg, url) {
+ const source = findSource(dbg, url);
+ return getDocument(source.id);
+}
+
+const diff = (a, b) => Object.keys(a).filter(key => !Object.is(a[key], b[key]));
+
+export function setupHelper(obj) {
+ const selectors = bindSelectors(obj);
+ const dbg = {
+ ...obj,
+ selectors,
+ prefs,
+ asyncStore,
+ features,
+ getCM,
+
+ // Expose this to tests as they don't have access to debugger's browser loader require
+ // and so can't load utils/wasm.js
+ wasmOffsetToLine: (sourceId, offset) => wasmOffsetToLine(sourceId, offset),
+
+ helpers: {
+ findSource: url => findSource(dbg, url),
+ findSources: url => findSources(dbg, url),
+ evaluate: expression => evaluate(dbg, expression),
+ dumpThread: () => getThreadFront(dbg).dumpThread(),
+ getDocument: url => getDocumentForUrl(dbg, url),
+ },
+ formatters: {
+ mappedLocations: locations => formatMappedLocations(locations),
+ mappedLocation: location => formatMappedLocation(location),
+ selectedColumnBreakpoints: () => formatSelectedColumnBreakpoints(dbg),
+ },
+ _telemetry: {
+ events: {},
+ },
+ diff,
+ };
+
+ window.dbg = dbg;
+}