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node_modules/apollo-utilities/lib/directives.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var visitor_1 = require("graphql/language/visitor");
+var ts_invariant_1 = require("ts-invariant");
+var storeUtils_1 = require("./storeUtils");
+function getDirectiveInfoFromField(field, variables) {
+    if (field.directives && field.directives.length) {
+        var directiveObj_1 = {};
+        field.directives.forEach(function (directive) {
+            directiveObj_1[directive.name.value] = storeUtils_1.argumentsObjectFromField(directive, variables);
+        });
+        return directiveObj_1;
+    }
+    return null;
+}
+exports.getDirectiveInfoFromField = getDirectiveInfoFromField;
+function shouldInclude(selection, variables) {
+    if (variables === void 0) { variables = {}; }
+    return getInclusionDirectives(selection.directives).every(function (_a) {
+        var directive = _a.directive, ifArgument = _a.ifArgument;
+        var evaledValue = false;
+        if (ifArgument.value.kind === 'Variable') {
+            evaledValue = variables[ifArgument.value.name.value];
+            ts_invariant_1.invariant(evaledValue !== void 0, "Invalid variable referenced in @" + directive.name.value + " directive.");
+        }
+        else {
+            evaledValue = ifArgument.value.value;
+        }
+        return directive.name.value === 'skip' ? !evaledValue : evaledValue;
+    });
+}
+exports.shouldInclude = shouldInclude;
+function getDirectiveNames(doc) {
+    var names = [];
+    visitor_1.visit(doc, {
+        Directive: function (node) {
+            names.push(node.name.value);
+        },
+    });
+    return names;
+}
+exports.getDirectiveNames = getDirectiveNames;
+function hasDirectives(names, doc) {
+    return getDirectiveNames(doc).some(function (name) { return names.indexOf(name) > -1; });
+}
+exports.hasDirectives = hasDirectives;
+function hasClientExports(document) {
+    return (document &&
+        hasDirectives(['client'], document) &&
+        hasDirectives(['export'], document));
+}
+exports.hasClientExports = hasClientExports;
+function isInclusionDirective(_a) {
+    var value = _a.name.value;
+    return value === 'skip' || value === 'include';
+}
+function getInclusionDirectives(directives) {
+    return directives ? directives.filter(isInclusionDirective).map(function (directive) {
+        var directiveArguments = directive.arguments;
+        var directiveName = directive.name.value;
+        ts_invariant_1.invariant(directiveArguments && directiveArguments.length === 1, "Incorrect number of arguments for the @" + directiveName + " directive.");
+        var ifArgument = directiveArguments[0];
+        ts_invariant_1.invariant(ifArgument.name && ifArgument.name.value === 'if', "Invalid argument for the @" + directiveName + " directive.");
+        var ifValue = ifArgument.value;
+        ts_invariant_1.invariant(ifValue &&
+            (ifValue.kind === 'Variable' || ifValue.kind === 'BooleanValue'), "Argument for the @" + directiveName + " directive must be a variable or a boolean value.");
+        return { directive: directive, ifArgument: ifArgument };
+    }) : [];
+}
+exports.getInclusionDirectives = getInclusionDirectives;
+//# sourceMappingURL=directives.js.map