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Completion list for a class extending another class should contain members from base class

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Handles #7158
This commit is contained in:
Sheetal Nandi
2017-04-27 15:46:07 -07:00
parent d483df94ef
commit b3d793608d
9 changed files with 313 additions and 57 deletions
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92
src/services/completions.ts
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@@ -18,7 +18,7 @@ namespace ts.Completions {
return undefined;
}
const { symbols, isGlobalCompletion, isMemberCompletion, isNewIdentifierLocation, location, requestJsDocTagName, requestJsDocTag } = completionData;
const { symbols, isGlobalCompletion, isMemberCompletion, isNewIdentifierLocation, location, requestJsDocTagName, requestJsDocTag, hasFilteredClassMemberKeywords } = completionData;
if (requestJsDocTagName) {
// If the current position is a jsDoc tag name, only tag names should be provided for completion
@@ -52,7 +52,7 @@ namespace ts.Completions {
sortText: "0",
});
}
else {
else if (!hasFilteredClassMemberKeywords) {
return undefined;
}
}
@@ -60,8 +60,11 @@ namespace ts.Completions {
getCompletionEntriesFromSymbols(symbols, entries, location, /*performCharacterChecks*/ true, typeChecker, compilerOptions.target, log);
}
if (hasFilteredClassMemberKeywords) {
addRange(entries, classMemberKeywordCompletions);
}
// Add keywords if this is not a member completion list
if (!isMemberCompletion && !requestJsDocTag && !requestJsDocTagName) {
else if (!isMemberCompletion && !requestJsDocTag && !requestJsDocTagName) {
addRange(entries, keywordCompletions);
}
@@ -406,7 +409,7 @@ namespace ts.Completions {
}
if (requestJsDocTagName || requestJsDocTag) {
return { symbols: undefined, isGlobalCompletion: false, isMemberCompletion: false, isNewIdentifierLocation: false, location: undefined, isRightOfDot: false, requestJsDocTagName, requestJsDocTag };
return { symbols: undefined, isGlobalCompletion: false, isMemberCompletion: false, isNewIdentifierLocation: false, location: undefined, isRightOfDot: false, requestJsDocTagName, requestJsDocTag, hasFilteredClassMemberKeywords: false };
}
if (!insideJsDocTagExpression) {
@@ -505,6 +508,7 @@ namespace ts.Completions {
let isGlobalCompletion = false;
let isMemberCompletion: boolean;
let isNewIdentifierLocation: boolean;
let hasFilteredClassMemberKeywords = false;
let symbols: Symbol[] = [];
if (isRightOfDot) {
@@ -542,7 +546,7 @@ namespace ts.Completions {
log("getCompletionData: Semantic work: " + (timestamp() - semanticStart));
return { symbols, isGlobalCompletion, isMemberCompletion, isNewIdentifierLocation, location, isRightOfDot: (isRightOfDot || isRightOfOpenTag), requestJsDocTagName, requestJsDocTag };
return { symbols, isGlobalCompletion, isMemberCompletion, isNewIdentifierLocation, location, isRightOfDot: (isRightOfDot || isRightOfOpenTag), requestJsDocTagName, requestJsDocTag, hasFilteredClassMemberKeywords };
function getTypeScriptMemberSymbols(): void {
// Right of dot member completion list
@@ -599,6 +603,7 @@ namespace ts.Completions {
function tryGetGlobalSymbols(): boolean {
let objectLikeContainer: ObjectLiteralExpression | BindingPattern;
let namedImportsOrExports: NamedImportsOrExports;
let classLikeContainer: ClassLikeDeclaration;
let jsxContainer: JsxOpeningLikeElement;
if (objectLikeContainer = tryGetObjectLikeCompletionContainer(contextToken)) {
@@ -611,6 +616,11 @@ namespace ts.Completions {
return tryGetImportOrExportClauseCompletionSymbols(namedImportsOrExports);
}
if (classLikeContainer = tryGetClassLikeCompletionContainer(contextToken)) {
// cursor inside class declaration
return tryGetClassLikeCompletionSymbols(classLikeContainer);
}
if (jsxContainer = tryGetContainingJsxElement(contextToken)) {
let attrsType: Type;
if ((jsxContainer.kind === SyntaxKind.JsxSelfClosingElement) || (jsxContainer.kind === SyntaxKind.JsxOpeningElement)) {
@@ -913,6 +923,31 @@ namespace ts.Completions {
return true;
}
/**
* Aggregates relevant symbols for completion in class declaration
* Relevant symbols are stored in the captured 'symbols' variable.
*
* @returns true if 'symbols' was successfully populated; false otherwise.
*/
function tryGetClassLikeCompletionSymbols(classLikeDeclaration: ClassLikeDeclaration): boolean {
// We're looking up possible property names from parent type.
isMemberCompletion = true;
// Declaring new property/method/accessor
isNewIdentifierLocation = true;
// Has keywords for class elements
hasFilteredClassMemberKeywords = true;
const baseTypeNode = getClassExtendsHeritageClauseElement(classLikeDeclaration);
if (baseTypeNode) {
const baseType = typeChecker.getTypeAtLocation(baseTypeNode);
// List of property symbols of base type that are not private
symbols = filter(typeChecker.getPropertiesOfType(baseType),
baseProperty => !(getDeclarationModifierFlagsFromSymbol(baseProperty) & ModifierFlags.Private));
}
return true;
}
/**
* Returns the immediate owning object literal or binding pattern of a context token,
* on the condition that one exists and that the context implies completion should be given.
@@ -953,6 +988,38 @@ namespace ts.Completions {
return undefined;
}
/**
* Returns the immediate owning class declaration of a context token,
* on the condition that one exists and that the context implies completion should be given.
*/
function tryGetClassLikeCompletionContainer(contextToken: Node): ClassLikeDeclaration {
if (contextToken) {
switch (contextToken.kind) {
case SyntaxKind.OpenBraceToken: // class c { |
if (isClassLike(contextToken.parent)) {
return contextToken.parent;
}
break;
// class c {getValue(): number; | }
case SyntaxKind.CommaToken:
case SyntaxKind.SemicolonToken:
// class c { method() { } | }
case SyntaxKind.CloseBraceToken:
if (isClassLike(location)) {
return location;
}
break;
}
}
// class c { method() { } | method2() { } }
if (location && location.kind === SyntaxKind.SyntaxList && isClassLike(location.parent)) {
return location.parent;
}
return undefined;
}
function tryGetContainingJsxElement(contextToken: Node): JsxOpeningLikeElement {
if (contextToken) {
const parent = contextToken.parent;
@@ -1306,6 +1373,21 @@ namespace ts.Completions {
});
}
const classMemberKeywordCompletions = filter(keywordCompletions, entry => {
switch (stringToToken(entry.name)) {
case SyntaxKind.PublicKeyword:
case SyntaxKind.ProtectedKeyword:
case SyntaxKind.PrivateKeyword:
case SyntaxKind.AbstractKeyword:
case SyntaxKind.StaticKeyword:
case SyntaxKind.ConstructorKeyword:
case SyntaxKind.ReadonlyKeyword:
case SyntaxKind.GetKeyword:
case SyntaxKind.SetKeyword:
return true;
}
});
function isEqualityExpression(node: Node): node is BinaryExpression {
return isBinaryExpression(node) && isEqualityOperatorKind(node.operatorToken.kind);
}