Please document compiler APIs

Would it be possible to get some documentation on the compiler APIs?

I am working on some TypeScript tooling, and I am using ts.createSourceFile() to get the AST for a TypeScript source file. However, the tree in SourceFile.statements is missing some information. For example, I need to know the type of an Expression when a PropertyDeclaration only has an initializer but no declared type. I have tried TypeChecker.getContextualType() but it always returns undefined; also the implementation doesn't look right. There are internal methods like TypeChecker.getTypeOfExpression() that look promising, but they are not visible. Also I read some mention of 'bindings', but I haven't found a way to get them.

Another example is type resolution: When I encounter a TypeNode or something similar within the AST, I usually need to know about its declaration: Where does it come from? Is it local? Where is it imported from? Of course I can write that myself with some effort, but surely such logic already exists within the compiler, I just don't know where.

Commencez par examiner les domaines de l’API du compilateur mentionnés dans l’issue : ts.createSourceFile(), SourceFile.statements, TypeChecker.getContextualType(), getTypeOfExpression(), bindings et la résolution des types. Documentez les APIs publiques prises en charge pour récupérer les types d’expressions et les déclarations, notamment la façon dont les imports et les déclarations locales sont identifiés ; le travail est terminé lorsque ces workflows sont clairement expliqués aux auteurs d’outils TypeScript.