57 lines
2.6 KiB
Plaintext
57 lines
2.6 KiB
Plaintext
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.TemplateLiteralFiniteError = void 0;
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exports.IsTemplateLiteralExpressionFinite = IsTemplateLiteralExpressionFinite;
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exports.IsTemplateLiteralFinite = IsTemplateLiteralFinite;
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const parse_1 = require("./parse");
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const index_1 = require("../error/index");
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// ------------------------------------------------------------------
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// TemplateLiteralFiniteError
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// ------------------------------------------------------------------
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class TemplateLiteralFiniteError extends index_1.TypeBoxError {
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}
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exports.TemplateLiteralFiniteError = TemplateLiteralFiniteError;
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// ------------------------------------------------------------------
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// IsTemplateLiteralFiniteCheck
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// ------------------------------------------------------------------
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// prettier-ignore
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function IsNumberExpression(expression) {
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return (expression.type === 'or' &&
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expression.expr.length === 2 &&
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expression.expr[0].type === 'const' &&
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expression.expr[0].const === '0' &&
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expression.expr[1].type === 'const' &&
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expression.expr[1].const === '[1-9][0-9]*');
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}
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// prettier-ignore
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function IsBooleanExpression(expression) {
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return (expression.type === 'or' &&
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expression.expr.length === 2 &&
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expression.expr[0].type === 'const' &&
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expression.expr[0].const === 'true' &&
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expression.expr[1].type === 'const' &&
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expression.expr[1].const === 'false');
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}
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// prettier-ignore
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function IsStringExpression(expression) {
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return expression.type === 'const' && expression.const === '.*';
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}
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// ------------------------------------------------------------------
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// IsTemplateLiteralExpressionFinite
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// ------------------------------------------------------------------
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// prettier-ignore
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function IsTemplateLiteralExpressionFinite(expression) {
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return (IsNumberExpression(expression) || IsStringExpression(expression) ? false :
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IsBooleanExpression(expression) ? true :
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(expression.type === 'and') ? expression.expr.every((expr) => IsTemplateLiteralExpressionFinite(expr)) :
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(expression.type === 'or') ? expression.expr.every((expr) => IsTemplateLiteralExpressionFinite(expr)) :
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(expression.type === 'const') ? true :
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(() => { throw new TemplateLiteralFiniteError(`Unknown expression type`); })());
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}
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/** Returns true if this TemplateLiteral resolves to a finite set of values */
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function IsTemplateLiteralFinite(schema) {
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const expression = (0, parse_1.TemplateLiteralParseExact)(schema.pattern);
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return IsTemplateLiteralExpressionFinite(expression);
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}
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