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interfaces, impls, and constrained generics (basics) (#1073)

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* interfaces, impls, and constrained generics (basics)

* separate type checking into declare vs. type check, removing redundancy

* external impls

* added impl scopes to handle generics calling generics

* cleanup

* more cleanup

* Update executable_semantics/testdata/interface/external_impl_point_vector.carbon

Co-authored-by: josh11b <josh11b@users.noreply.github.com>

* Update executable_semantics/testdata/interface/generic_call_generic.carbon

Co-authored-by: josh11b <josh11b@users.noreply.github.com>

* Update executable_semantics/testdata/interface/tuple_vector_add_scale.carbon

Co-authored-by: josh11b <josh11b@users.noreply.github.com>

* Update executable_semantics/testdata/interface/vector_point_add_scale.carbon

Co-authored-by: josh11b <josh11b@users.noreply.github.com>

* change ImplementationDeclaration to ImplDeclaration

* remove impl_type_value

* split NamedEntity into two

* changed GetName to be a free function

* adding comments

* more edits to respond to review

* introduce ImplBinding, remove punning on GenericBinding

* new test case and some minor edits

* refactor GetMember and GetField to move impl logic to interpreter

* remove commennt

* change EntityView to ImplBinding in FieldAccess...

* move ImplBinding

* review response

* added example to impl_scope.h

* minor edits

* Update executable_semantics/interpreter/field_path.h

Co-authored-by: Geoff Romer <gromer@google.com>

* Update executable_semantics/interpreter/value.cpp

Co-authored-by: Geoff Romer <gromer@google.com>

* Update executable_semantics/interpreter/interpreter.cpp

Co-authored-by: Geoff Romer <gromer@google.com>

* Update executable_semantics/ast/expression.h

Co-authored-by: Geoff Romer <gromer@google.com>

* Update executable_semantics/ast/expression.h

Co-authored-by: Geoff Romer <gromer@google.com>

* Update executable_semantics/ast/generic_binding.h

Co-authored-by: Geoff Romer <gromer@google.com>

* more edits from review

* review response

* Update executable_semantics/ast/static_scope.h

Co-authored-by: Geoff Romer <gromer@google.com>

* remove ImplType, renamed node_view to value_node

Co-authored-by: josh11b <josh11b@users.noreply.github.com>
Co-authored-by: Geoff Romer <gromer@google.com>
This commit is contained in:
Jeremy G. Siek
2022-03-02 15:58:45 -05:00
committed by GitHub
co-authored by josh11b Geoff Romer
parent 8f6e42d866
commit 7cce1bd124
43 changed files with 1722 additions and 441 deletions
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executable_semantics/syntax/lexer.lpp
+6
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@@ -42,6 +42,7 @@ AMPERSAND "&"
AND "and"
API "api"
ARROW "->"
AS "as"
AUTO "auto"
AWAIT "__await"
BOOL "Bool"
@@ -60,12 +61,14 @@ DOUBLE_ARROW "=>"
ELSE "else"
EQUAL "="
EQUAL_EQUAL "=="
EXTERNAL "external"
FALSE "false"
FN "fn"
FN_TYPE "__Fn"
IF "if"
IMPL "impl"
IMPORT "import"
INTERFACE "interface"
LEFT_CURLY_BRACE "{"
LEFT_PARENTHESIS "("
LEFT_SQUARE_BRACKET "["
@@ -139,6 +142,7 @@ string_literal \"([^\\\"\n\v\f\r]|\\.)*\"
{AND} { return SIMPLE_TOKEN(AND); }
{API} { return SIMPLE_TOKEN(API); }
{ARROW} { return SIMPLE_TOKEN(ARROW); }
{AS} { return SIMPLE_TOKEN(AS); }
{AUTO} { return SIMPLE_TOKEN(AUTO); }
{AWAIT} { return SIMPLE_TOKEN(AWAIT); }
{BOOL} { return SIMPLE_TOKEN(BOOL); }
@@ -157,12 +161,14 @@ string_literal \"([^\\\"\n\v\f\r]|\\.)*\"
{ELSE} { return SIMPLE_TOKEN(ELSE); }
{EQUAL_EQUAL} { return SIMPLE_TOKEN(EQUAL_EQUAL); }
{EQUAL} { return SIMPLE_TOKEN(EQUAL); }
{EXTERNAL} { return SIMPLE_TOKEN(EXTERNAL); }
{FALSE} { return SIMPLE_TOKEN(FALSE); }
{FN_TYPE} { return SIMPLE_TOKEN(FN_TYPE); }
{FN} { return SIMPLE_TOKEN(FN); }
{IF} { return SIMPLE_TOKEN(IF); }
{IMPL} { return SIMPLE_TOKEN(IMPL); }
{IMPORT} { return SIMPLE_TOKEN(IMPORT); }
{INTERFACE} { return SIMPLE_TOKEN(INTERFACE); }
{LEFT_CURLY_BRACE} { return SIMPLE_TOKEN(LEFT_CURLY_BRACE); }
{LEFT_PARENTHESIS} { return SIMPLE_TOKEN(LEFT_PARENTHESIS); }
{LEFT_SQUARE_BRACKET} { return SIMPLE_TOKEN(LEFT_SQUARE_BRACKET); }