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d: remove unnecessary methods from the Lexer interface

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The complete symbol approach in yylex removes the need for the methods
semanticVal, startPos and endPos, which were used when the values were
reported separately.

* data/skeletons/lalr1.d: Here.
* doc/bison.texi: Remove sections about the three methods.
* examples/d/calc/calc.y, examples/d/simple/calc.y: Remove the unused methods.
* tests/calc.at, tests/d.at, tests/scanner.at: Test it.
This commit is contained in:
Adela Vais
2020-12-21 15:49:27 +02:00
committed by Akim Demaille
parent 27109d9d4a
commit 32bb53870b
7 changed files with 1 additions and 69 deletions
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18
data/skeletons/lalr1.d
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@@ -53,23 +53,7 @@ import std.format;
* parser <tt>]b4_parser_class[</tt>.
*/
public interface Lexer
{]b4_locations_if([[
/**
* Method to retrieve the beginning position of the last scanned token.
* @@return the position at which the last scanned token starts. */
Position startPos ();
/**
* Method to retrieve the ending position of the last scanned token.
* @@return the first position beyond the last scanned token. */
Position endPos ();
]])[
/**
* Method to retrieve the semantic value of the last scanned token.
* @@return the semantic value of the last scanned token. */
Value semanticVal ();
{
/**
* Entry point for the scanner. Returns the token identifier corresponding
* to the next token and prepares to return the semantic value