Namer

The completer of a symbol defined by a member def or import (except ClassSymbols)

Add child annotation for child to annotations of cls. The annotation is added at the correct insertion point, so that Child annotations appear in reverse order of their start positions.

Add java enum constants

Check that a new definition with given name and privacy status in current context would not conflict with existing currently compiled definitions. The logic here is very subtle and fragile due to the fact that we are not allowed to force anything.

Enter and typecheck parameter list

If this tree is a member def or an import, create a symbol of it and store in symOfTree map.

The type signature of a DefDef with given symbol

The enclosing class with given name; error if none exists

Ensure that the first type in a list of parent types Ps points to a non-trait class. If that's not already the case, add one. The added class type CT is determined as follows. First, let C be the unique class such that

• there is a parent P_i such that P_i derives from C, and
• for every class D: If some parent P_j, j <= i derives from D, then C derives from D. Then, let CT be the smallest type which
• has C as its class symbol, and
• for all parents P_i: If P_i derives from C then P_i <:< CT.

Tweak: It could be that at the point where the method is called, some superclass is still missing its parents. Parents are set to Nil when completion starts and are set to the actual parents later. If a superclass completes a subclass in one of its parents, the parents of the superclass or some intervening class might not yet be set. This situation can be detected by asking for the baseType of Any - if that type does not exist, one of the base classes of this class misses its parents. If this situation arises, the computation of the superclass might be imprecise. For instance, in i12722.scala, the superclass of IPersonalCoinOps is computed as Object, where JsObject would be correct. The problem cannot be solved locally, but we detect the situaton and mark the superclass with a @ProvisionalSuperClass annotation in this case. When typechecking the class, we then run ensureFirstIsClass again and possibly improve the computed super class. An alternatiev fix would compute superclasses at typer instead at completion. But that breaks too many invariants. For instance, we rely on correct @Child annotations after completion, and these in turn need the superclass.

If sym exists, enter it in effective scope. Check that package members are not entered twice in the same run.

Expand tree and store in expandedTree

The expanded version of this tree, or tree itself if not expanded

The type bound on wildcard imports of an import list, with special values Nothing if no wildcard imports of this kind exist Any if there are unbounded wildcard imports of this kind

Expand tree and create top-level symbols for statement and enter them into symbol table

Create top-level symbols for statements and enter them into symbol table

Create top-level symbols for all statements in the expansion of this statement and enter them into symbol table

For all class definitions stat in xstats: If the companion class is not also defined in xstats, invalidate it by setting its info to NoType.

Determines whether this field holds an enum constant.

Parse the source and index symbols in the compilation unit's untpdTree while asserting the lateCompile flag. This will cause any old top-level symbol with the same fully qualified name as a newly created symbol to be replaced.

Will call the callback with an implementation of type checking That will set the tpdTree and root tree for the compilation unit.

The signature of a module valdef. This will compute the corresponding module class TypeRef immediately without going through the defined type of the ValDef. This is necessary to avoid cyclic references involving imports and module val defs.

Record sym as the symbol defined by tree

The symbol of the given expanded tree.

Typecheck tree during completion using typed, and remember result in TypedAhead map

The type signature of a ValDef or DefDef

A map from method symbols to nested typers. Populated when methods are completed. Emptied when they are typechecked. The nested typer contains new versions of the four maps above including this one, so that trees that are shared between different DefDefs can be independently used as indices. It also contains a scope that contains nested parameters.