Function getEmitFunction

src/code-gen/functions.ts:263–288

(event: AbiEvent, context: FileContext)

}

export function getEmitFunction(event: AbiEvent, context: FileContext): ArrayJoinInput<string> {
  const topic0 = `0x${keccak256(`${event.name}(${event.fields.map(f => toTypeName(f.type)).join(',')})`).toString('hex')}`;
  const lines: string[] = [];
  const topics: string[] = []
  const topic0Reference = context.addConstant(`${event.name}_topic0`, topic0);
  topics.push(topic0Reference)
  let offset = 0;
  for (let field of event.fields) {
    if (field.isIndexed) {
      topics.push(field.name)
    } else {
      const offsetRef = context.addConstant(`${event.name}_${field.name}_ptr`, toHex(offset));
      lines.push(`mstore(${offsetRef}, ${field.name})`);
      offset += 32;
    }
  }
  const lengthReference = context.addConstant(`${event.name}_length`, toHex(offset))
  lines.push(`log${topics.length}(0, ${lengthReference}, ${topics.join(', ')})`)
  const fnBlock = buildFunctionBlock(
    `emit${event.name}`,
    event.fields.map((field) => `${toTypeName(field.type)} ${field.name}`),
    [],
    buildAssemblyBlock(lines)
  );
  return fnBlock
}

export function getCallFunction(fn: AbiFunction, context: FileContext): ArrayJoinInput<string> {
  const {input, output} = fn