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Extend description of parser states to show which tokens they consume. (#3378)

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Also some minor improvements and typo fixes to the parser code for
issues found while writing these descriptions.
This commit is contained in:
Richard Smith
2023-11-10 22:08:58 +00:00
committed by GitHub
parent b953fbf314
commit 0fb2924c99
5 changed files with 515 additions and 202 deletions
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toolchain/parse/handle_statement.cpp
+4 -4
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@@ -23,7 +23,7 @@ auto HandleStatement(Context& context) -> void {
case Lex::TokenKind::For: {
context.PushState(State::StatementForFinish);
context.PushState(State::StatementForHeader);
++context.position();
context.ConsumeAndDiscard();
break;
}
case Lex::TokenKind::If: {
@@ -108,7 +108,7 @@ auto HandleStatementForHeader(Context& context) -> void {
if (auto next_in = context.FindNextOf({Lex::TokenKind::In})) {
context.SkipTo(*next_in);
++context.position();
context.ConsumeAndDiscard();
}
state.has_error = true;
context.PushState(state);
@@ -143,7 +143,7 @@ auto HandleStatementIf(Context& context) -> void {
context.PushState(State::StatementIfConditionFinish);
context.PushState(State::ParenConditionAsIf);
++context.position();
context.ConsumeAndDiscard();
}
auto HandleStatementIfConditionFinish(Context& context) -> void {
@@ -218,7 +218,7 @@ auto HandleStatementWhile(Context& context) -> void {
context.PushState(State::StatementWhileConditionFinish);
context.PushState(State::ParenConditionAsWhile);
++context.position();
context.ConsumeAndDiscard();
}
auto HandleStatementWhileConditionFinish(Context& context) -> void {