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EnterSSA.ts — react Source File

Architecture documentation for EnterSSA.ts, a typescript file in the react codebase. 21 imports, 0 dependents.

File typescript MIRInfrastructure HIR 21 imports 2 functions 1 classes

Entity Profile

Dependency Diagram

graph LR
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12["EnterSSA.ts"]
  e96f281e_f381_272d_2359_3e6a091c9a1d["CompilerError.ts"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> e96f281e_f381_272d_2359_3e6a091c9a1d
  e51fd0d2_bb38_cc97_7763_efe37f300a47["CompilerError"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> e51fd0d2_bb38_cc97_7763_efe37f300a47
  1b971013_8a90_0d8d_1fcc_f31581cd66aa["Environment.ts"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> 1b971013_8a90_0d8d_1fcc_f31581cd66aa
  cba0c8a2_0db5_48e2_0d19_b2c6a46799e8["Environment"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> cba0c8a2_0db5_48e2_0d19_b2c6a46799e8
  18a78965_f593_105b_e5e8_07001321c2ec["HIR.ts"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> 18a78965_f593_105b_e5e8_07001321c2ec
  5b3acd48_6f52_d332_a26f_b7cb0f74b86e["BasicBlock"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> 5b3acd48_6f52_d332_a26f_b7cb0f74b86e
  4a73a9b9_07eb_502f_14c1_2f045ba2666c["BlockId"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> 4a73a9b9_07eb_502f_14c1_2f045ba2666c
  9241c5c1_a9a7_17bc_e41c_e967225008dd["HIRFunction"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> 9241c5c1_a9a7_17bc_e41c_e967225008dd
  bd003dbd_e691_524b_0cf4_50e080ffea94["Identifier"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> bd003dbd_e691_524b_0cf4_50e080ffea94
  e3a6ca26_1f1a_c7f8_fbf3_804737192775["IdentifierId"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> e3a6ca26_1f1a_c7f8_fbf3_804737192775
  d0270ab6_a621_bd55_a1b9_a5cad8b406b2["makeInstructionId"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> d0270ab6_a621_bd55_a1b9_a5cad8b406b2
  c9e1e8c0_f799_bda5_08b4_00780f1e950f["Phi"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> c9e1e8c0_f799_bda5_08b4_00780f1e950f
  c7aaa235_c19e_3530_31c2_911f38eed3e0["Place"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> c7aaa235_c19e_3530_31c2_911f38eed3e0
  6976a9ee_9d8e_4f16_3016_495f39aff2fd["PrintHIR.ts"]
  1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 --> 6976a9ee_9d8e_4f16_3016_495f39aff2fd
  style 1aa7ee2e_5f6c_b797_fe10_9a09d30a5e12 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

import {CompilerError} from '../CompilerError';
import {Environment} from '../HIR/Environment';
import {
  BasicBlock,
  BlockId,
  GeneratedSource,
  HIRFunction,
  Identifier,
  IdentifierId,
  makeInstructionId,
  makeType,
  Phi,
  Place,
} from '../HIR/HIR';
import {printIdentifier, printPlace} from '../HIR/PrintHIR';
import {
  eachTerminalSuccessor,
  mapInstructionLValues,
  mapInstructionOperands,
  mapTerminalOperands,
} from '../HIR/visitors';

type IncompletePhi = {
  oldPlace: Place;
  newPlace: Place;
};

type State = {
  defs: Map<Identifier, Identifier>;
  incompletePhis: Array<IncompletePhi>;
};

class SSABuilder {
  #states: Map<BasicBlock, State> = new Map();
  #current: BasicBlock | null = null;
  unsealedPreds: Map<BasicBlock, number> = new Map();
  #blocks: Map<BlockId, BasicBlock>;
  #env: Environment;
  #unknown: Set<Identifier> = new Set();
  #context: Set<Identifier> = new Set();

  constructor(env: Environment, blocks: ReadonlyMap<BlockId, BasicBlock>) {
    this.#blocks = new Map(blocks);
    this.#env = env;
  }

  get nextSsaId(): IdentifierId {
    return this.#env.nextIdentifierId;
  }

  defineFunction(func: HIRFunction): void {
    for (const [id, block] of func.body.blocks) {
      this.#blocks.set(id, block);
// ... (270 more lines)

Domain

Subdomains

Functions

Classes

Types

Dependencies

Source

Frequently Asked Questions

What does EnterSSA.ts do?
EnterSSA.ts is a source file in the react codebase, written in typescript. It belongs to the MIRInfrastructure domain, HIR subdomain.
What functions are defined in EnterSSA.ts?
EnterSSA.ts defines 2 function(s): enterSSA, enterSSAImpl.
What does EnterSSA.ts depend on?
EnterSSA.ts imports 21 module(s): BasicBlock, BlockId, CompilerError, CompilerError.ts, Environment, Environment.ts, HIR.ts, HIRFunction, and 13 more.
Where is EnterSSA.ts in the architecture?
EnterSSA.ts is located at compiler/packages/babel-plugin-react-compiler/src/SSA/EnterSSA.ts (domain: MIRInfrastructure, subdomain: HIR, directory: compiler/packages/babel-plugin-react-compiler/src/SSA).

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