greenweb.util.sexp#

fromHex#

Converts a hex string (bytes) to a SExp object.

console.log(greenweb.util.sexp.fromHex('ff8080'));
// Object { Dt: null, "$t": (2) […] }

toHex#

Converts a SExp object to a hex string.

const {SExp, OPERATOR_LOOKUP, KEYWORD_TO_ATOM, h, t, run_program} = greenweb.clvm;
const plus = h(KEYWORD_TO_ATOM["+"]);
const q = h(KEYWORD_TO_ATOM["q"]);
const program = SExp.to([plus, 1, t(q, 175)]);
console.log(greenweb.util.sexp.toHex(program));
// ff10ff01ffff018200af80

run#

Runs a program (puzzle) with the given solution. Third argument is optional and represents the maximum cost - if this cost is exceeded, the function will throw an error. Returns the output (SExp).

const {SExp, OPERATOR_LOOKUP, KEYWORD_TO_ATOM, h, t, run_program} = greenweb.clvm;
const plus = h(KEYWORD_TO_ATOM["+"]);
const q = h(KEYWORD_TO_ATOM["q"]);
const program = SExp.to([plus, 1, t(q, 175)]);
const solution = SExp.to(25);

console.log(greenweb.util.sexp.run(program, solution).as_int());
// 200

runWithCost#

Runs a program (puzzle) with the given solution. Third argument is optional and represents the maximum cost - if this cost is exceeded, the function will throw an error. Returns a tuple that contains the output (SExp) and the cost of running the program (number).

const {SExp, OPERATOR_LOOKUP, KEYWORD_TO_ATOM, h, t, run_program} = greenweb.clvm;
const plus = h(KEYWORD_TO_ATOM["+"]);
const q = h(KEYWORD_TO_ATOM["q"]);
const program = SExp.to([plus, 1, t(q, 175)]);
const solution = SExp.to(25);

const [output, cost] = greenweb.util.sexp.runWithCost(program, solution);
console.log(output.as_int());
// 200
console.log(cost);
// 833

sha256tree#

Returns the SHA256 treehash of a given puzzle.

const {SExp, OPERATOR_LOOKUP, KEYWORD_TO_ATOM, h, t, run_program} = greenweb.clvm;
const plus = h(KEYWORD_TO_ATOM["+"]);
const q = h(KEYWORD_TO_ATOM["q"]);
const program = SExp.to([plus, 1, t(q, 175)]);

console.log(greenweb.util.sexp.sha256tree(program));

conditionsDictForSolution#

TypeScript/JavaScript port of this function.

conditionsForSolution#

TypeScript/JavaScript port of this function.

parseSExpToConditions#

TypeScript/JavaScript port of this function.

parseSExpToCondition#

TypeScript/JavaScript port of this function.

asAtomList#

TypeScript/JavaScript port of this function.

conditionsByOpcode#

TypeScript/JavaScript port of this function.

pkmPairsForConditionsDict#

TypeScript/JavaScript port of this function.

curry#

Curries a list of parameters into a given program.

public curry(program: SExp, args: SExp[]): SExp {

uncurry#

Given a curried program, returns the original module and the arguments that were curried in. If the input is invalid, returns null.

public uncurry(program: SExp): [SExp, SExp[]] | null {

calculateSyntheticPublicKey#

A wrapper for CALCULATE_SYNTHETIC_PUBLIC_KEY_PROGRAM.

public calculateSyntheticPublicKey(publicKey: any, hiddenPuzzleHash = this.DEFAULT_HIDDEN_PUZZLE_HASH): any {

standardCoinPuzzle#

A wrapper for P2_DELEGATED_PUZZLE_OR_HIDDEN_PUZZLE_PROGRAM_MOD.

public standardCoinPuzzle(key: any, isSyntheticKey: boolean = false): SExp {

standardCoinSolution#

Returns a valid standard coin solution (SExp) derived from the given list of conditions.

public standardCoinSolution(conditions: SExp[]): SExp {

CATPuzzle#

A wrapper for CAT_PROGRAM_MOD.

public CATPuzzle(TAILProgramHash: bytes, innerPuzzle: SExp): SExp {

CATSolution#

Returns a valid solution (SExp) for the CAT puzzle.

public CATSolution(
    innerPuzzleSolution: SExp,
    lineageProof: SExp | null,
    prevCoinId: bytes,
    thisCoinInfo: Coin,
    nextCoinProof: Coin,
    prevSubtotal: BigNumberish,
    extraDelta: BigNumberish
): SExp {

genesisByCoinIdTAIL#

A wrapper for GENESIS_BY_COIN_ID_TAIL_MOD.

public genesisByCoinIdTAIL(genesisId: bytes): SExp {

genesisByPuzzleHashTAIL#

A wrapper for GENESIS_BY_PUZZLE_HASH_TAIL_MOD.

public genesisByPuzzleHashTAIL(puzzleHash: bytes): SExp {

everythingWithSignatureTAIL#

A wrapper for EVERYTHING_WITH_SIGNATURE_TAIL_MOD.

public everythingWithSignatureTAIL(pubKey: bytes): SExp {

delegatedTAIL#

A wrapper for DELEGATED_TAIL_MOD.

public delegatedTAIL(pubKey: bytes): SExp {

Programs#

This class also exposes the following 'standard' programs as SExp objects:

• SHA256TREE_MODULE_PROGRAM
• CURRY_PROGRAM
• P2_DELEGATED_PUZZLE_OR_HIDDEN_PUZZLE_PROGRAM_MOD
• P2_CONDITIONS_PROGRAM
• DEFAULT_HIDDEN_PUZZLE_PROGRAM
• CALCULATE_SYNTHETIC_PUBLIC_KEY_PROGRAM
• CAT_PROGRAM_MOD
• CAT_PROGRAM_MOD_HASH
• GENESIS_BY_COIN_ID_TAIL_MOD
• GENESIS_BY_PUZZLE_HASH_TAIL_MOD
• EVERYTHING_WITH_SIGNATURE_TAIL_MOD
• DELEGATED_TAIL_MOD