ExtractUsedNames
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package xsbt
Define common error messages for error reporting and assertions.
Define common error messages for error reporting and assertions.
Create a (source) name for a class symbol s.
Create a (source) name for a class symbol s.
Create a (source) name for the class symbol s with a prefix determined by the class symbol in.
Create a (source) name for the class symbol s with a prefix determined by the class symbol in.
If s represents a package object pkg3, then the returned name will be pkg1.pkg2.pkg3.package.
If s represents a class Foo nested in package object pkg3 then the returned name is pkg1.pkg2.pk3.Foo.
Note that some objects with special access rights are encoded in names
(like qualified privates private[qualifier]). In order to get the right
original names, we need to use unexpandedName.
Create a String (source) name for a class symbol s.
Create a String (source) name for a class symbol s.
Given a class symbol cls, construct a name representing this constructor.
Given a class symbol cls, construct a name representing this constructor.
For a class:
a.b.Foo
this is:
a;b;Foo;init;
The prefix is important to avoid name hashing all constructors together (see #97), the weird format is necessary to avoid scalac or zinc trying to interpret this name (in particular we should not use '.' and we should not use '<init>'), we use ';' because it is one of the few characters that cannot appear in a valid JVM name.
Return the enclosing class or the module class if it's a module.
Return the enclosing class or the module class if it's a module.
Creates a flat (binary) name for a class symbol s.
Creates a flat (binary) name for a class symbol s.
Return true if symbol shall be ignored, false otherwise.
Return true if symbol shall be ignored, false otherwise.
Return true if type shall be ignored, false otherwise.
Return true if type shall be ignored, false otherwise.
Return true if name is empty, false otherwise.
Return true if name is empty, false otherwise.
Mangle a JVM symbol name in a format better suited for internal uses by sbt.
Mangle a JVM symbol name in a format better suited for internal uses by sbt.
Returns true if given tree contains macro attchment.
Returns true if given tree contains macro attchment. In such case calls func on tree from attachment.
Extracts simple names used in given compilation unit.
Extracts simple (unqualified) names mentioned in given in non-definition position by collecting all symbols associated with non-definition trees and extracting names from all collected symbols. Also extract the names of the types of non-definition trees (see source-dependencies/types-in-used-names-* and source-dependencies/as-seen-from-* for examples where this is required).
If given symbol is mentioned both in definition and in non-definition position (e.g. in member selection) then that symbol is collected. It means that names of symbols defined and used in the same compilation unit are extracted. We've considered not extracting names of those symbols as an optimization strategy. It turned out that this is not correct. Check https://github.com/gkossakowski/sbt/issues/3 for an example of scenario where it matters.
All extracted names are returned in _decoded_ form. This way we stay consistent with the rest of incremental compiler which works with names in decoded form.
Names mentioned in Import nodes are handled properly but require some special logic for two reasons:
termSymbolof Import nodes point to the symbol of the prefix it imports from (not the actual members that we import, that are represented as names). 2. ImportSelector is not subtype of Tree therefore is not processed byTree.foreach.Another type of tree nodes that requires special handling is TypeTree. TypeTree nodes has a little bit odd representation:
The tree walking algorithm walks into TypeTree.original explicitly.