Ziele Untersuchung
mit Columbo Integrität von
Datenbanken Interaktion und
Portierbarkeit Ergonomie der
Schnittstellen

Angebot Produkte Projekt Beratung

Mittel Analytik Modellierung Sprachen Algebra Logik Hardware Denken Kreativität

Zusammenhänge Gesellschaft Wirtschaft Branche Firma


products/Sources/formale Sprachen/C/Firefox/devtools/client/shared/components/ (Browser von der Mozilla Stiftung Version 136.0.1^©) Datei vom 10.2.2025 mit Größe 9 kB

SSL SmartTrace.js Interaktion und
PortierbarkeitJAVA

/* 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";

const {
  Component,
  createFactory,
} = require("resource://devtools/client/shared/vendor/react.js");
const PropTypes = require("resource://devtools/client/shared/vendor/react-prop-types.js");
const { LocalizationHelper } = require("resource://devtools/shared/l10n.js");

const l10n = new LocalizationHelper(
  "devtools/client/locales/components.properties"
);
const dbgL10n = new LocalizationHelper(
  "devtools/client/locales/debugger.properties"
);
const Frames = createFactory(
  require("resource://devtools/client/debugger/src/components/SecondaryPanes/Frames/index.js")
    .Frames
);
const {
  annotateFramesWithLibrary,
} = require("resource://devtools/client/debugger/src/utils/pause/frames/annotateFrames.js");
const {
  getDisplayURL,
} = require("resource://devtools/client/debugger/src/utils/sources-tree/getURL.js");
const {
  getFormattedSourceId,
} = require("resource://devtools/client/debugger/src/utils/source.js");

class SmartTrace extends Component {
  static get propTypes() {
    return {
      stacktrace: PropTypes.array.isRequired,
      onViewSource: PropTypes.func.isRequired,
      onViewSourceInDebugger: PropTypes.func.isRequired,
      // Service to enable the source map feature.
      sourceMapURLService: PropTypes.object,
      // A number in ms (defaults to 100) which we'll wait before doing the first actual
      // render of this component, in order to avoid shifting layout rapidly in case the
      // page is using sourcemap.
      // Setting it to 0 or anything else than a number will force the first render to
      // happen immediatly, without any delay.
      initialRenderDelay: PropTypes.number,
      onSourceMapResultDebounceDelay: PropTypes.number,
      // Function that will be called when the SmartTrace is ready, i.e. once it was
      // rendered.
      onReady: PropTypes.func,
    };
  }

  static get defaultProps() {
    return {
      initialRenderDelay: 100,
      onSourceMapResultDebounceDelay: 200,
    };
  }

  constructor(props) {
    super(props);
    this.state = {
      hasError: false,
      // If a sourcemap service is passed, we want to introduce a small delay in rendering
      // so we can have the results from the sourcemap service, or render if they're not
      // available yet.
      ready: !props.sourceMapURLService || !this.hasInitialRenderDelay(),
      updateCount: 0,
      // Original positions for each indexed position
      originalLocations: null,
    };
  }

  getChildContext() {
    return { l10n: dbgL10n };
  }

  // FIXME: https://bugzilla.mozilla.org/show_bug.cgi?id=1774507
  UNSAFE_componentWillMount() {
    if (this.props.sourceMapURLService) {
      this.sourceMapURLServiceUnsubscriptions = [];
      const sourceMapInit = Promise.all(
        this.props.stacktrace.map(
          ({ filename, sourceId, lineNumber, columnNumber }, index) =>
            new Promise(resolve => {
              const callback = originalLocation => {
                this.onSourceMapServiceChange(originalLocation, index);
                resolve();
              };

              this.sourceMapURLServiceUnsubscriptions.push(
                this.props.sourceMapURLService.subscribeByLocation(
                  {
                    id: sourceId,
                    url: filename.split(" -> ").pop(),
                    line: lineNumber,
                    column: columnNumber,
                  },
                  callback
                )
              );
            })
        )
      );

      // Without initial render delay, we don't have to do anything; if the frames are
      // sourcemapped, we will get new renders from onSourceMapServiceChange.
      if (!this.hasInitialRenderDelay()) {
        return;
      }

      const delay = new Promise(res => {
        this.initialRenderDelayTimeoutId = setTimeout(
          res,
          this.props.initialRenderDelay
        );
      });

      // We wait either for the delay to be over (if it exists), or the sourcemapService
      // results to be available, before setting the state as initialized.
      Promise.race([delay, sourceMapInit]).then(() => {
        if (this.initialRenderDelayTimeoutId) {
          clearTimeout(this.initialRenderDelayTimeoutId);
        }
        this.setState(state => ({
          // Force-update so that the ready state is detected.
          updateCount: state.updateCount + 1,
          ready: true,
        }));
      });
    }
  }

  componentDidMount() {
    if (this.props.onReady && this.state.ready) {
      this.props.onReady();
    }
  }

  shouldComponentUpdate(_, nextState) {
    if (this.state.updateCount !== nextState.updateCount) {
      return true;
    }

    return false;
  }

  componentDidUpdate(_, previousState) {
    if (this.props.onReady && !previousState.ready && this.state.ready) {
      this.props.onReady();
    }
  }

  componentWillUnmount() {
    if (this.initialRenderDelayTimeoutId) {
      clearTimeout(this.initialRenderDelayTimeoutId);
    }

    if (this.onFrameLocationChangedTimeoutId) {
      clearTimeout(this.initialRenderDelayTimeoutId);
    }

    if (this.sourceMapURLServiceUnsubscriptions) {
      this.sourceMapURLServiceUnsubscriptions.forEach(unsubscribe => {
        unsubscribe();
      });
    }
  }

  componentDidCatch(error, info) {
    console.error(
      "Error while rendering stacktrace:",
      error,
      info,
      "props:",
      this.props
    );
    this.setState(state => ({
      // Force-update so the error is detected.
      updateCount: state.updateCount + 1,
      hasError: true,
    }));
  }

  onSourceMapServiceChange(originalLocation, index) {
    this.setState(({ originalLocations }) => {
      if (!originalLocations) {
        originalLocations = Array.from({
          length: this.props.stacktrace.length,
        });
      }
      return {
        originalLocations: [
          ...originalLocations.slice(0, index),
          originalLocation,
          ...originalLocations.slice(index + 1),
        ],
      };
    });

    if (this.onFrameLocationChangedTimeoutId) {
      clearTimeout(this.onFrameLocationChangedTimeoutId);
    }

    // Since a trace may have many original positions, we don't want to
    // constantly re-render every time one becomes available. To avoid this,
    // we only update the component after an initial timeout, and on a
    // debounce edge as more positions load after that.
    if (this.state.ready === true) {
      this.onFrameLocationChangedTimeoutId = setTimeout(() => {
        this.setState(state => ({
          updateCount: state.updateCount + 1,
        }));
      }, this.props.onSourceMapResultDebounceDelay);
    }
  }

  hasInitialRenderDelay() {
    return (
      Number.isFinite(this.props.initialRenderDelay) &&
      this.props.initialRenderDelay > 0
    );
  }

  render() {
    if (
      this.state.hasError ||
      (this.hasInitialRenderDelay() && !this.state.ready)
    ) {
      return null;
    }

    const { onViewSourceInDebugger, onViewSource, stacktrace } = this.props;
    const { originalLocations } = this.state;

    const frames = stacktrace.map(
      (
        {
          filename,
          sourceId,
          lineNumber,
          columnNumber,
          functionName,
          asyncCause,
        },
        i
      ) => {
        // Create partial debugger frontend "location" objects compliant with <Frames> react component requirements
        const sourceUrl = filename.split(" -> ").pop();
        const generatedLocation = {
          line: lineNumber,
          column: columnNumber,
          source: {
            // 'id' isn't used by Frames, but by selectFrame callback below
            id: sourceId,
            url: sourceUrl,
            // Used by FrameComponent
            shortName: sourceUrl
              ? getDisplayURL(sourceUrl).filename
              : getFormattedSourceId(sourceId),
          },
        };
        let location = generatedLocation;
        const originalLocation = originalLocations?.[i];
        if (originalLocation) {
          location = {
            line: originalLocation.line,
            column: originalLocation.column,
            source: {
              url: originalLocation.url,
              // Used by FrameComponent
              shortName: getDisplayURL(originalLocation.url).filename,
            },
          };
        }

        // Create partial debugger frontend "frame" objects compliant with <Frames> react component requirements
        return {
          id: "fake-frame-id-" + i,
          displayName: functionName,
          asyncCause,
          location,
          // Note that for now, Frames component only uses 'location' attribute
          // and never the 'generatedLocation'.
          // But the code below does, the selectFrame callback.
          generatedLocation,
        };
      }
    );
    annotateFramesWithLibrary(frames);

    return Frames({
      frames,
      selectFrame: ({ generatedLocation }) => {
        const viewSource = onViewSourceInDebugger || onViewSource;

        viewSource({
          id: generatedLocation.source.id,
          url: generatedLocation.source.url,
          line: generatedLocation.line,
          column: generatedLocation.column,
        });
      },
      getFrameTitle: url => {
        return l10n.getFormatStr("frame.viewsourceindebugger", url);
      },
      disableFrameTruncate: true,
      disableContextMenu: true,
      frameworkGroupingOn: true,
      // Force displaying the original location (we might try to use current Debugger state?)
      shouldDisplayOriginalLocation: true,
      displayFullUrl: !this.state || !this.state.originalLocations,
      panel: "webconsole",
    });
  }
}

SmartTrace.childContextTypes = {
  l10n: PropTypes.object,
};

module.exports = SmartTrace;

quality100%

¤ Diese beiden folgenden Angebotsgruppen bietet das Unternehmen0.16Angebot Wie Sie bei der Firma Beratungs- und Dienstleistungen beauftragen können ¤

*Eine klare Vorstellung vom Zielzustand

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.