The previous implementation of the tree structure for the demangler had a bug in the low-level tree management code which caused the tree structure to diverge depending on whether
nodes were added as siblings or children. This checkin fixes the issue by making sure that the tree of nodes is kept coherent at all times.
Some adjustments are necessary to ensure the nodes were still generated properly and correctly turned into strings
Added a new test case
Swift SVN r7643
Previously, substitutions were treated as unstructured text chunks, but this was causing problems when using the demangler as a source of structured type information
This patch ensures that substitutions are properly stored as the type they represent for later semantic reconstruction
Swift SVN r7494
This commit changes the Swift demangler to produce a tree-like list of tokens instead of a string.
This is mostly useful for LLDB since we can use the inherent structure in a Swift mangled name to make more informed decisions about matters such as type information extraction from modules
The ability to convert the tokenized output into a plain string for viewing purposes is of course preserved
Swift SVN r7297
These value witness table entries will be conditionally available for types that support specialized union representation through extra inhabitants and/or spare bits and for union value witnesses:
- storeExtraInhabitant, to store an extra inhabitant representation;
- getExtraInhabitantIndex, to recognize an extra inhabitant representation;
- getUnionTag, to get a union's discriminator; and
- inplaceProjectUnionData, to extract the value in place from a union.
This just sets up the enumerators and related IR types and mangling; nothing emits these witnesses yet.
Swift SVN r7234
We need to handle three cases:
- If a protocol conformance has no associated types, or the associated type witnesses all have statically resolvable metadata, we can expose a *direct* witness table symbol.
- If a protocol conformance has associated types with runtime-instantiated metadata, we need to gate the witness table behind a *lazy* initializer function to fill in the metadata fields.
- If a protocol conformance has associated types where the type or one of its conformances are *dependent* on its parent's generic parameters, we need to instantiate multiple witness tables at runtime.
Swift SVN r6805
We haven't fully updated references to union cases, and enums still are not
their own thing yet, but "oneof" is gone. Long live "union"!
Swift SVN r6783
the debug info, to aid the debugger in figuring out the implementation
language of a given type in multi-language environments.
FYI, where applicable, we also emit the
DW_AT_APPLE_runtime_class(DW_AT_lang_Swift) attribute.
The demangler accepts type names with the "_Tt" prefix without the --type
switch.
Swift SVN r6714
