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8 Commits
Author SHA1 Message Date
Jon Ross-Perkins 357baaeef8 Rename //explorer/common to base (#3103) 
Renaming per #3100
 2023-08-15 19:23:23 +00:00
Richard SmithandJon Ross-Perkins ea60e4f491 Track the file kind on SourceLocation rather than computing it from the file name. (#2999) 
This will be more correct if a user file is named prelude.carbon, and
reduces the explorer runtime by about 10% by removing a string
comparison from the check for whether trace output is enabled.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
 2023-07-19 23:07:53 +00:00
Richard SmithandJon Ross-Perkins c172487395 Support for declaring functions within a namespace (#2569) 
First step towards permitting declarations within namespaces. Supports only functions within namespaces for now, with no way to call those functions except from within other such functions. Unqualified lookups within a function in a namespace look in that namespace first.

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
 2023-02-02 14:11:03 -08:00
Adrien Leravat 798a40c886 Basic support for impl virtual override keyword (#2493) 
Features:
* Add basic support for `impl` virtual methods (override virtual method)
* Error on invalid declaration for `impl` and `virtual`, covering simple use cases
* Add `abstract` fn parser-only support

Changes:
* Modify parser to handle new function specifiers, resolve conflicts
    * Group `virtual_override` and `FN`, and group `impl_kind` and `IMPL` to avoid ambiguities with around `impl` token parsing
* Add new `VirtualOverride` enum for function declarations, and matching `virt_override() -> VirtualOverride` getter
* Update function declaration logic

Depends on #2462
 2023-01-04 11:09:23 -08:00
Adrien Leravat 8301258ef8 Explorer: support virtual class methods (#2462) 
Features:
* Add `virtual` virtual override keyword for functions
* Support `virtual` class methods using dynamic dispatch

Changes:
* Add `vtable` in `NominalClassType`, 
* Add `NominalClassValue**` in class values pointing to  descendant-most class
* Resolve virtual methods during member lookup

Limitations:
* Does not include yet `impl`, `abstract` virtual override keywords, or the complete logic for virtual function declaration

Depends on #2460 
Relates to #1881 
Relates to #2493
 2023-01-02 12:37:49 -08:00
Richard Smith 59ae6e31b6 Rename PrimitiveOperatorExpression to OperatorExpression. (#1530) 
This isn't modeling only primitive operators any more: it also models operators
that are rewritten as calls to an interface function.
 2022-07-22 11:36:36 -07:00
SlaterLatiao 9106e9239e Initial implementation of returned var. (#1348) 
This PR implements the `returned var` for the explorer.
- Enabled `returned var` and `return var` syntax in lexer and parser.
- Split `Return` statement into `ReturnVar` and `ReturnExpression` to distinguish the two types of returns.
- Added logic in name resolution, type checking and interpretation to process `returned var` definition and `ReturnVar` statement.
 2022-07-06 13:35:41 -07:00
Jon Meow 309ec35f95 Rename executable_semantics to explorer (#1188) 
Change generated with:

```
#!/usr/bin/bash -eux

# Helper script for renaming pending work.
# Run from the repo root.

# Rename executable_semantics in code.
sed -i 's/executable_semantics/explorer/g' \
  $(git grep -l 'executable_semantics' . | grep -v proposals)
sed -i 's/executable semantics/explorer/g' \
  $(git grep -l 'executable semantics' . | grep -v proposals)
sed -i 's/Executable semantics/Explorer/g' \
  $(git grep -l 'Executable semantics' . |  grep -v proposals)
sed -i 's/Executable Semantics/Explorer/g' \
  $(git grep -l 'Executable Semantics' . |  grep -v proposals)
sed -i 's/EXECUTABLE_SEMANTICS/EXPLORER/g' \
  $(git grep -l 'EXECUTABLE_SEMANTICS' . | grep -v proposals)
sed -i 's/ExecutableSemantics/Explorer/g' \
  $(git grep -l 'ExecutableSemantics' . | grep -v proposals)
sed -i 's/executable-semantics/explorer/g' \
  $(git grep -l 'executable-semantics' . | grep -v proposals)

# This is only needed for the initial move.
mv executable_semantics explorer
mv explorer/fuzzing/executable_semantics_fuzzer.cpp explorer/fuzzing/explorer_fuzzer.cpp
```

Verified with `bazel test ...`
 2022-04-29 13:20:25 -07:00