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Add syntax for package and library (#792)

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Doesn't add much logic, only takes advantage of parser structure for the ordering enforcement.

Note import_nonexistent tests should probably fail, but writing import tests needs a chain of functionality, and I figured I'd just start adding some to validate the syntax (not adding existent imports because that'd require multi-file structure).
This commit is contained in:
Jon Meow
2021-09-02 16:01:15 -07:00
committed by GitHub
parent 0980df65cd
commit a03536a196
152 changed files with 433 additions and 63 deletions
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executable_semantics/syntax/lexer.lpp
+10
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@@ -30,6 +30,7 @@ SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
/* Table begin. */
AND "and"
API "api"
ARROW "->"
AUTO "auto"
AWAIT "__await"
@@ -53,13 +54,17 @@ FALSE "false"
FN "fn"
FNTY "fnty"
IF "if"
IMPL "impl"
IMPORT "import"
LEFT_CURLY_BRACE "{"
LEFT_PARENTHESIS "("
LEFT_SQUARE_BRACKET "["
LIBRARY "library"
MATCH "match"
MINUS "-"
NOT "not"
OR "or"
PACKAGE "package"
PERIOD "."
PLUS "+"
RETURN "return"
@@ -119,6 +124,7 @@ string_literal \"([^\\\"\n\v\f\r]|\\.)*\"
/* Table begin. */
{AND} { return SIMPLE_TOKEN(AND); }
{API} { return SIMPLE_TOKEN(API); }
{ARROW} { return SIMPLE_TOKEN(ARROW); }
{AUTO} { return SIMPLE_TOKEN(AUTO); }
{AWAIT} { return SIMPLE_TOKEN(AWAIT); }
@@ -142,13 +148,17 @@ string_literal \"([^\\\"\n\v\f\r]|\\.)*\"
{FNTY} { return SIMPLE_TOKEN(FNTY); }
{FN} { return SIMPLE_TOKEN(FN); }
{IF} { return SIMPLE_TOKEN(IF); }
{IMPL} { return SIMPLE_TOKEN(IMPL); }
{IMPORT} { return SIMPLE_TOKEN(IMPORT); }
{LEFT_PARENTHESIS} { return SIMPLE_TOKEN(LEFT_PARENTHESIS); }
{LEFT_CURLY_BRACE} { return SIMPLE_TOKEN(LEFT_CURLY_BRACE); }
{LEFT_SQUARE_BRACKET} { return SIMPLE_TOKEN(LEFT_SQUARE_BRACKET); }
{LIBRARY} { return SIMPLE_TOKEN(LIBRARY); }
{MATCH} { return SIMPLE_TOKEN(MATCH); }
{MINUS} { return SIMPLE_TOKEN(MINUS); }
{NOT} { return SIMPLE_TOKEN(NOT); }
{OR} { return SIMPLE_TOKEN(OR); }
{PACKAGE} { return SIMPLE_TOKEN(PACKAGE); }
{PERIOD} { return SIMPLE_TOKEN(PERIOD); }
{PLUS} { return SIMPLE_TOKEN(PLUS); }
{RETURN} { return SIMPLE_TOKEN(RETURN); }