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_getMetadataObjectsBySourceNames() — react Function Reference

Architecture documentation for the _getMetadataObjectsBySourceNames() function in SourceMapMetadataConsumer.js from the react codebase.

Function javascript BabelCompiler Validation calls 1 called by 1

Entity Profile

Dependency Diagram

graph TD
  8436bb82_dab4_7302_5fc5_eff8d217773c["_getMetadataObjectsBySourceNames()"]
  c91679b7_c93e_6e95_410e_81e24076c30a["SourceMapMetadataConsumer"]
  8436bb82_dab4_7302_5fc5_eff8d217773c -->|defined in| c91679b7_c93e_6e95_410e_81e24076c30a
  c02a4f80_a820_866d_445a_6951aae599f7["_getMetadataBySource()"]
  c02a4f80_a820_866d_445a_6951aae599f7 -->|calls| 8436bb82_dab4_7302_5fc5_eff8d217773c
  320a3b4e_798e_d179_0b68_c45b971d0001["normalizeSourcePath()"]
  8436bb82_dab4_7302_5fc5_eff8d217773c -->|calls| 320a3b4e_798e_d179_0b68_c45b971d0001
  style 8436bb82_dab4_7302_5fc5_eff8d217773c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/react-devtools-shared/src/hooks/SourceMapMetadataConsumer.js lines 131–184

  _getMetadataObjectsBySourceNames(sourcemap: MixedSourceMap): MetadataMap {
    if (sourcemap.mappings === undefined) {
      const indexSourceMap: IndexSourceMap = sourcemap;
      const metadataMap = new Map<string, ?ReactSourceMetadata>();
      indexSourceMap.sections.forEach(section => {
        const metadataMapForIndexMap = this._getMetadataObjectsBySourceNames(
          section.map,
        );
        metadataMapForIndexMap.forEach((value, key) => {
          metadataMap.set(key, value);
        });
      });
      return metadataMap;
    }

    const metadataMap: MetadataMap = new Map();
    const basicMap: BasicSourceMap = sourcemap;
    const updateMap = (metadata: ReactSourceMetadata, sourceIndex: number) => {
      let source = basicMap.sources[sourceIndex];
      if (source != null) {
        source = normalizeSourcePath(source, basicMap);
        metadataMap.set(source, metadata);
      }
    };

    if (
      sourcemap.hasOwnProperty(REACT_SOURCES_EXTENSION_KEY) &&
      sourcemap[REACT_SOURCES_EXTENSION_KEY] != null
    ) {
      const reactMetadataArray = sourcemap[REACT_SOURCES_EXTENSION_KEY];
      reactMetadataArray.filter(Boolean).forEach(updateMap);
    } else if (
      sourcemap.hasOwnProperty(FB_SOURCES_EXTENSION_KEY) &&
      sourcemap[FB_SOURCES_EXTENSION_KEY] != null
    ) {
      const fbMetadataArray = sourcemap[FB_SOURCES_EXTENSION_KEY];
      if (fbMetadataArray != null) {
        fbMetadataArray.forEach((fbMetadata, sourceIndex) => {
          // When extending source maps with React metadata using the
          // x_facebook_sources field, the position at index 1 on the
          // metadata tuple is reserved for React metadata
          const reactMetadata =
            fbMetadata != null
              ? fbMetadata[REACT_METADATA_INDEX_IN_FB_METADATA]
              : null;
          if (reactMetadata != null) {
            updateMap(reactMetadata, sourceIndex);
          }
        });
      }
    }

    return metadataMap;
  }

Domain

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Defined In

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Called By

Source

Frequently Asked Questions

What does _getMetadataObjectsBySourceNames() do?
_getMetadataObjectsBySourceNames() is a function in the react codebase, defined in packages/react-devtools-shared/src/hooks/SourceMapMetadataConsumer.js.
Where is _getMetadataObjectsBySourceNames() defined?
_getMetadataObjectsBySourceNames() is defined in packages/react-devtools-shared/src/hooks/SourceMapMetadataConsumer.js at line 131.
What does _getMetadataObjectsBySourceNames() call?
_getMetadataObjectsBySourceNames() calls 1 function(s): normalizeSourcePath.
What calls _getMetadataObjectsBySourceNames()?
_getMetadataObjectsBySourceNames() is called by 1 function(s): _getMetadataBySource.

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