typescript-is - npm Package Compare versions

Comparing version 0.6.7 to 0.7.0

lib/transform-inline/visitor.js

@@ -169,3 +169,3 @@ "use strict";
 }
-function visitNonPrimitive(type, accessor, visitorContext) {
+function visitNonPrimitiveType(type, accessor, visitorContext) {
     const intrinsicName = type.intrinsicName;
@@ -197,2 +197,21 @@ let conditions;
 }
+function visitIndexType(type, accessor, visitorContext) {
+    const typeMapper = visitorContext.typeMapperStack[visitorContext.typeMapperStack.length - 1];
+    // Using internal TypeScript API, hacky.
+    let indexedType = type.type;
+    if (indexedType === undefined) {
+        throw new Error('Could not get indexed type of index type.');
+    }
+    // Make sure we resolve type parameters.
+    indexedType = typeMapper(indexedType) || indexedType;
+    const properties = visitorContext.checker.getPropertiesOfType(indexedType);
+    if (properties.length >= 1) {
+        return properties
+            .map((property) => ts.createStrictEquality(accessor, ts.createStringLiteral(property.name)))
+            .reduce((condition, expression) => ts.createBinary(condition, ts.SyntaxKind.BarBarToken, expression));
+    }
+    else {
+        return ts.createFalse();
+    }
+}
 function visitType(type, accessor, visitorContext) {
@@ -249,4 +268,8 @@ if ((ts.TypeFlags.Any & type.flags) !== 0) {
         // Non-primitive such as object
-        return visitNonPrimitive(type, accessor, visitorContext);
+        return visitNonPrimitiveType(type, accessor, visitorContext);
     }
+    else if ((ts.TypeFlags.Index & type.flags) !== 0) {
+        // Index type: keyof X
+        return visitIndexType(type, accessor, visitorContext);
+    }
     else {
@@ -253,0 +276,0 @@ throw new Error('Unsupported type with flags: ' + type.flags);

package.json

 {
   "name": "typescript-is",
-  "version": "0.6.7",
+  "version": "0.7.0",
   "engines": {
@@ -5,0 +5,0 @@ "node": ">=6.14.4"

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75343

increased by2.71%

Lines of code

780

increased by3.04%

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