Function getSetField

src/code-gen/fields.ts:241–273

(
  struct: AbiStruct,
  field: AbiStructField,
  offset: number,
  context: FileContext,
  originalName: string,
  maxValueReference: string
)

}

export const getSetField = (
  struct: AbiStruct,
  field: AbiStructField,
  offset: number,
  context: FileContext,
  originalName: string,
  maxValueReference: string
) => {
  if (field.type.meta !== "elementary" && field.type.meta !== "enum") throw Error("Unsupported field!");
  const constantsPrefix = `${struct.name}_${originalName}`;
  const size = field.type.size;
  const bitsAfter = 256 - (offset + size);
  
  const omitMaskName = `${constantsPrefix}_maskOut`;
  const omitMask = getOmissionMask(offset, size)
  const maskReference = context.addConstant(omitMaskName, omitMask);
  const oldValueRemoved = `and(old, ${maskReference})`;

  let fieldReference = intAllowed(field.type) ? `and(${field.name}, ${maxValueReference})` : field.name

  let positioned = field.name;
  if (bitsAfter > 0) {
    const bitsAfterName = `${constantsPrefix}_bitsAfter`;
    const bitsAfterReference = context.addConstant(bitsAfterName, toHex(bitsAfter));
    positioned = `shl(${bitsAfterReference}, ${fieldReference})`;
  }

  return {
    update: `or(${oldValueRemoved}, ${positioned})`,
    position: positioned,
    omitMaskReference: maskReference
  };
};

export const getReadField = (
  struct: AbiStruct,