eslint-plugin-snarkyjs
Version:
SnarkyJS rules for ESLint
75 lines • 3.15 kB
JavaScript
;
const typescript_estree_1 = require("@typescript-eslint/typescript-estree");
const ast_utils_1 = require("../utils/ast-utils");
const node_utils_1 = require("../utils/node-utils");
const selectors_1 = require("../utils/selectors");
const rule = {
meta: {
messages: {
noThrowInCircuit: 'A "throw" statement should not be used in a circuit.',
},
schema: [],
type: 'problem',
docs: {
description: 'A "throw" statement should not be used in a circuit.',
recommended: 'error',
},
},
create(context) {
const snarkyCircuitMap = new Map();
const throwSet = new Set();
const callees = {};
const callStack = [];
const currentFunction = () => callStack[callStack.length - 1];
function callsThrow(functionName) {
var _a;
return (throwSet.has(functionName) || !!((_a = callees[functionName]) === null || _a === void 0 ? void 0 : _a.some(callsThrow)));
}
return {
'Program:exit': function () {
for (const circuitNode of snarkyCircuitMap.values()) {
(0, typescript_estree_1.simpleTraverse)(circuitNode, {
enter: (node) => {
if ((0, node_utils_1.isThrowStatement)(node)) {
context.report({ messageId: 'noThrowInCircuit', loc: node.loc });
}
if ((0, node_utils_1.isCallExpression)(node) &&
(0, node_utils_1.isIdentifier)(node.callee) &&
callsThrow(node.callee.name)) {
context.report({
messageId: `noThrowInCircuit`,
loc: node.loc,
});
}
},
});
}
},
[selectors_1.CIRCUIT_METHOD_DECORATOR]: function (circuitMethodNode) {
const functionName = (0, ast_utils_1.getFunctionName)(circuitMethodNode);
if (functionName)
snarkyCircuitMap.set(functionName, circuitMethodNode);
},
':function'(node) {
callStack.push((0, ast_utils_1.getFunctionName)(node));
},
':function:exit'() {
callStack.pop();
},
ThrowStatement() {
const functionName = currentFunction();
if (functionName)
throwSet.add(functionName);
},
CallExpression(node) {
const functionName = currentFunction();
if (functionName && (0, node_utils_1.isIdentifier)(node.callee)) {
const currentCallees = callees[functionName] || (callees[functionName] = []);
currentCallees.push(node.callee.name);
}
},
};
},
};
module.exports = rule;
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