mirror of
https://github.com/Sevichecc/Urara-Blog.git
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70 lines
No EOL
2.9 KiB
Text
70 lines
No EOL
2.9 KiB
Text
"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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var desc = Object.getOwnPropertyDescriptor(m, k);
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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desc = { enumerable: true, get: function() { return m[k]; } };
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}
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Object.defineProperty(o, k2, desc);
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.getContextualType = void 0;
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const tsutils_1 = require("tsutils");
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const ts = __importStar(require("typescript"));
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/**
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* Returns the contextual type of a given node.
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* Contextual type is the type of the target the node is going into.
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* i.e. the type of a called function's parameter, or the defined type of a variable declaration
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*/
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function getContextualType(checker, node) {
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const parent = node.parent;
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if (!parent) {
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return;
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}
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if ((0, tsutils_1.isCallExpression)(parent) || (0, tsutils_1.isNewExpression)(parent)) {
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if (node === parent.expression) {
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// is the callee, so has no contextual type
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return;
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}
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}
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else if ((0, tsutils_1.isVariableDeclaration)(parent) ||
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(0, tsutils_1.isPropertyDeclaration)(parent) ||
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(0, tsutils_1.isParameterDeclaration)(parent)) {
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return parent.type ? checker.getTypeFromTypeNode(parent.type) : undefined;
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}
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else if ((0, tsutils_1.isJsxExpression)(parent)) {
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return checker.getContextualType(parent);
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}
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else if ((0, tsutils_1.isPropertyAssignment)(parent) && (0, tsutils_1.isIdentifier)(node)) {
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return checker.getContextualType(node);
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}
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else if ((0, tsutils_1.isBinaryExpression)(parent) &&
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parent.operatorToken.kind === ts.SyntaxKind.EqualsToken &&
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parent.right === node) {
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// is RHS of assignment
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return checker.getTypeAtLocation(parent.left);
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}
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else if (![ts.SyntaxKind.TemplateSpan, ts.SyntaxKind.JsxExpression].includes(parent.kind)) {
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// parent is not something we know we can get the contextual type of
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return;
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}
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// TODO - support return statement checking
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return checker.getContextualType(node);
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}
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exports.getContextualType = getContextualType;
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//# sourceMappingURL=getContextualType.js.map |