Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 114 insertions, 0 deletions

diff --git a/devtools/client/debugger/src/actions/ast/index.js b/devtools/client/debugger/src/actions/ast/index.js
new file mode 100644
index 0000000000..ec2c1ae84c
--- /dev/null
+++ b/devtools/client/debugger/src/actions/ast/index.js
@@ -0,0 +1,5 @@
+/* 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/>. */
+
+export { setInScopeLines } from "./setInScopeLines";
diff --git a/devtools/client/debugger/src/actions/ast/moz.build b/devtools/client/debugger/src/actions/ast/moz.build
new file mode 100644
index 0000000000..5b0152d2ad
--- /dev/null
+++ b/devtools/client/debugger/src/actions/ast/moz.build
@@ -0,0 +1,11 @@
+# vim: set filetype=python:
+# 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/.
+
+DIRS += []
+
+CompiledModules(
+    "index.js",
+    "setInScopeLines.js",
+)
diff --git a/devtools/client/debugger/src/actions/ast/setInScopeLines.js b/devtools/client/debugger/src/actions/ast/setInScopeLines.js
new file mode 100644
index 0000000000..72bd33b59f
--- /dev/null
+++ b/devtools/client/debugger/src/actions/ast/setInScopeLines.js
@@ -0,0 +1,98 @@
+/* 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 {
+  hasInScopeLines,
+  getSourceTextContent,
+  getVisibleSelectedFrame,
+} from "../../selectors/index";
+
+import { getSourceLineCount } from "../../utils/source";
+
+import { isFulfilled } from "../../utils/async-value";
+
+function getOutOfScopeLines(outOfScopeLocations) {
+  if (!outOfScopeLocations) {
+    return null;
+  }
+
+  const uniqueLines = new Set();
+  for (const location of outOfScopeLocations) {
+    for (let i = location.start.line; i < location.end.line; i++) {
+      uniqueLines.add(i);
+    }
+  }
+
+  return uniqueLines;
+}
+
+async function getInScopeLines(
+  location,
+  sourceTextContent,
+  { dispatch, getState, parserWorker }
+) {
+  let locations = null;
+  if (location.line && parserWorker.isLocationSupported(location)) {
+    locations = await parserWorker.findOutOfScopeLocations(location);
+  }
+
+  const linesOutOfScope = getOutOfScopeLines(locations);
+  const sourceNumLines =
+    !sourceTextContent || !isFulfilled(sourceTextContent)
+      ? 0
+      : getSourceLineCount(sourceTextContent.value);
+
+  const noLinesOutOfScope =
+    linesOutOfScope == null || linesOutOfScope.size == 0;
+
+  // This operation can be very costly for large files so we sacrifice a bit of readability
+  // for performance sake.
+  // We initialize an array with a fixed size and we'll directly assign value for lines
+  // that are not out of scope. This is much faster than having an empty array and pushing
+  // into it.
+  const sourceLines = new Array(sourceNumLines);
+  for (let i = 0; i < sourceNumLines; i++) {
+    const line = i + 1;
+    if (noLinesOutOfScope || !linesOutOfScope.has(line)) {
+      sourceLines[i] = line;
+    }
+  }
+
+  // Finally we need to remove any undefined values, i.e. the ones that were matching
+  // out of scope lines.
+  return sourceLines.filter(i => i != undefined);
+}
+
+export function setInScopeLines() {
+  return async thunkArgs => {
+    const { getState, dispatch } = thunkArgs;
+    const visibleFrame = getVisibleSelectedFrame(getState());
+
+    if (!visibleFrame) {
+      return;
+    }
+
+    const { location } = visibleFrame;
+    const sourceTextContent = getSourceTextContent(getState(), location);
+
+    // Ignore if in scope lines have already be computed, or if the selected location
+    // doesn't have its content already fully fetched.
+    // The ParserWorker will only have the source text content once the source text content is fulfilled.
+    if (
+      hasInScopeLines(getState(), location) ||
+      !sourceTextContent ||
+      !isFulfilled(sourceTextContent)
+    ) {
+      return;
+    }
+
+    const lines = await getInScopeLines(location, sourceTextContent, thunkArgs);
+
+    dispatch({
+      type: "IN_SCOPE_LINES",
+      location,
+      lines,
+    });
+  };
+}