removeObjectProperties() — react Function Reference

Architecture documentation for the removeObjectProperties() function in minimize.ts from the react codebase.

Function typescript BabelCompiler Optimization calls 1

Entity Profile

BabelCompiler→ Optimization→ removeObjectProperties() — react Function Reference

Dependency Diagram

graph TD
  c40d840b_60f7_80a3_aa1a_23e2d66e4c67["removeObjectProperties()"]
  9c061da8_dbf8_4168_823d_991654a3c55d["minimize.ts"]
  c40d840b_60f7_80a3_aa1a_23e2d66e4c67 -->|defined in| 9c061da8_dbf8_4168_823d_991654a3c55d
  7a9af496_ef6a_d9e8_8eaf_1f386f49e4b3["cloneAst()"]
  c40d840b_60f7_80a3_aa1a_23e2d66e4c67 -->|calls| 7a9af496_ef6a_d9e8_8eaf_1f386f49e4b3
  style c40d840b_60f7_80a3_aa1a_23e2d66e4c67 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

compiler/packages/snap/src/minimize.ts lines 1579–1613

function* removeObjectProperties(ast: t.File): Generator<t.File> {
  // Collect all object expressions with their property counts
  const objectSites: Array<{objectIndex: number; propCount: number}> = [];
  let objectIndex = 0;
  t.traverseFast(ast, node => {
    if (t.isObjectExpression(node) && node.properties.length > 0) {
      objectSites.push({objectIndex, propCount: node.properties.length});
      objectIndex++;
    }
  });

  // For each object, try removing each property one at a time (from end to start)
  for (const {objectIndex: targetObjIdx, propCount} of objectSites) {
    for (let propIdx = propCount - 1; propIdx >= 0; propIdx--) {
      const cloned = cloneAst(ast);
      let idx = 0;
      let modified = false;

      t.traverseFast(cloned, node => {
        if (modified) return;
        if (t.isObjectExpression(node) && node.properties.length > 0) {
          if (idx === targetObjIdx && propIdx < node.properties.length) {
            node.properties.splice(propIdx, 1);
            modified = true;
          }
          idx++;
        }
      });

      if (modified) {
        yield cloned;
      }
    }
  }
}