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mapInstructionLValues() — react Function Reference

Architecture documentation for the mapInstructionLValues() function in visitors.ts from the react codebase.

Function typescript MIRInfrastructure HIR calls 1 called by 2

Entity Profile

Dependency Diagram

graph TD
  4f38d1cb_5a1e_1f03_9dbd_2513b7bb5a80["mapInstructionLValues()"]
  2f3caf55_cc64_415c_55dd_9771ba7dc210["visitors.ts"]
  4f38d1cb_5a1e_1f03_9dbd_2513b7bb5a80 -->|defined in| 2f3caf55_cc64_415c_55dd_9771ba7dc210
  876d58c8_bfce_a9d8_22c0_b40cc7e22553["inlineJsxTransform()"]
  876d58c8_bfce_a9d8_22c0_b40cc7e22553 -->|calls| 4f38d1cb_5a1e_1f03_9dbd_2513b7bb5a80
  8ec30eb2_4622_378f_f538_3070f7a38fae["enterSSAImpl()"]
  8ec30eb2_4622_378f_f538_3070f7a38fae -->|calls| 4f38d1cb_5a1e_1f03_9dbd_2513b7bb5a80
  f6e40907_93a0_cbc4_14eb_4d0ec248c01a["mapPatternOperands()"]
  4f38d1cb_5a1e_1f03_9dbd_2513b7bb5a80 -->|calls| f6e40907_93a0_cbc4_14eb_4d0ec248c01a
  style 4f38d1cb_5a1e_1f03_9dbd_2513b7bb5a80 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

compiler/packages/babel-plugin-react-compiler/src/HIR/visitors.ts lines 420–444

export function mapInstructionLValues(
  instr: Instruction,
  fn: (place: Place) => Place,
): void {
  switch (instr.value.kind) {
    case 'DeclareLocal':
    case 'StoreLocal': {
      const lvalue = instr.value.lvalue;
      lvalue.place = fn(lvalue.place);
      break;
    }
    case 'Destructure': {
      mapPatternOperands(instr.value.lvalue.pattern, fn);
      break;
    }
    case 'PostfixUpdate':
    case 'PrefixUpdate': {
      instr.value.lvalue = fn(instr.value.lvalue);
      break;
    }
  }
  if (instr.lvalue !== null) {
    instr.lvalue = fn(instr.lvalue);
  }
}

Domain

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Defined In

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Called By

Source

Frequently Asked Questions

What does mapInstructionLValues() do?
mapInstructionLValues() is a function in the react codebase, defined in compiler/packages/babel-plugin-react-compiler/src/HIR/visitors.ts.
Where is mapInstructionLValues() defined?
mapInstructionLValues() is defined in compiler/packages/babel-plugin-react-compiler/src/HIR/visitors.ts at line 420.
What does mapInstructionLValues() call?
mapInstructionLValues() calls 1 function(s): mapPatternOperands.
What calls mapInstructionLValues()?
mapInstructionLValues() is called by 2 function(s): enterSSAImpl, inlineJsxTransform.

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