phiTypeEquals() — react Function Reference

Architecture documentation for the phiTypeEquals() function in Types.ts from the react codebase.

Function typescript MIRInfrastructure TypeInference called by 1

Entity Profile

MIRInfrastructure→ TypeInference→ phiTypeEquals() — react Function Reference

Dependency Diagram

graph TD
  d5a5f0d3_d81b_48a9_7efa_cd4b0c4792a1["phiTypeEquals()"]
  f1874e3c_f8f2_5f68_d3a9_0c56c0dad5ec["Types.ts"]
  d5a5f0d3_d81b_48a9_7efa_cd4b0c4792a1 -->|defined in| f1874e3c_f8f2_5f68_d3a9_0c56c0dad5ec
  6cb76c14_8f7d_3ae1_e022_72c013593d86["typeEquals()"]
  6cb76c14_8f7d_3ae1_e022_72c013593d86 -->|calls| d5a5f0d3_d81b_48a9_7efa_cd4b0c4792a1
  style d5a5f0d3_d81b_48a9_7efa_cd4b0c4792a1 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

compiler/packages/babel-plugin-react-compiler/src/HIR/Types.ts lines 214–229

function phiTypeEquals(tA: Type, tB: Type): boolean {
  if (tA.kind === 'Phi' && tB.kind === 'Phi') {
    if (tA.operands.length !== tB.operands.length) {
      return false;
    }

    let operands = new Set(tA.operands);
    for (let i = 0; i < tB.operands.length; i++) {
      if (!operands.has(tB.operands[i])) {
        return false;
      }
    }
  }

  return false;
}