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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
1e6c7e3963
This has two goals: 1) It allows us to simplify and remove special cases from the parser: when we expect a particular token next, we can just check for it without needing a special case for end-of-file. 2) It gives us a token to use as a position when emitting diagnostics at the end of the file. Centralize all updating of `position` to `Consume` and `SkipTo`, so that we can in a single place ensure that we never go past the EOF token.
27 lines
1014 B
Modula-2
27 lines
1014 B
Modula-2
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// Note that this is an X-macro header.
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//
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// It does not use `#include` guards, and instead is designed to be `#include`ed
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// after the x-macro is defined in order for its inclusion to expand to the
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// desired output. The x-macro for this header is `CARBON_PARSE_NODE_KIND`. The
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// definition provided will be removed at the end of this file to clean up.
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#ifndef CARBON_PARSE_NODE_KIND
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#error "Must define the x-macro to use this file."
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#endif
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CARBON_PARSE_NODE_KIND(CodeBlockEnd)
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CARBON_PARSE_NODE_KIND(CodeBlock)
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CARBON_PARSE_NODE_KIND(DeclarationEnd)
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CARBON_PARSE_NODE_KIND(EmptyDeclaration)
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CARBON_PARSE_NODE_KIND(FunctionDeclaration)
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CARBON_PARSE_NODE_KIND(Identifier)
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CARBON_PARSE_NODE_KIND(ParameterListEnd)
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CARBON_PARSE_NODE_KIND(ParameterList)
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CARBON_PARSE_NODE_KIND(FileEnd)
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#undef CARBON_PARSE_NODE_KIND
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