[Parser][NFC] Remove parser/input.h (#6332)

Remove the layer of abstraction sitting between the parser and the lexer now
that the lexer has an interface the parser can use directly.

1 files changed, 0 insertions, 88 deletions

diff --git a/src/parser/input.h b/src/parser/input.h
deleted file mode 100644
index f83f5a40a..000000000
--- a/src/parser/input.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * Copyright 2023 WebAssembly Community Group participants
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef parser_input_h
-#define parser_input_h
-
-#include "lexer.h"
-#include "support/result.h"
-#include "wasm.h"
-
-namespace wasm::WATParser {
-
-using namespace std::string_view_literals;
-
-// Wraps a lexer and provides utilities for consuming tokens.
-struct ParseInput {
-  Lexer lexer;
-
-  explicit ParseInput(std::string_view in) : lexer(in) {}
-
-  ParseInput(std::string_view in, size_t index) : lexer(in) {
-    lexer.setIndex(index);
-  }
-
-  ParseInput(const ParseInput& other, size_t index) : lexer(other.lexer) {
-    lexer.setIndex(index);
-  }
-
-  bool empty() { return lexer.empty(); }
-
-  // TODO: Remove this useless layer of abstraction between the Lexer and
-  // Parser.
-  std::optional<Token> peek() { return lexer.peek(); }
-  bool takeLParen() { return lexer.takeLParen(); }
-  bool takeRParen() { return lexer.takeRParen(); }
-  bool takeUntilParen() { return lexer.takeUntilParen(); }
-  std::optional<Name> takeID() { return lexer.takeID(); }
-  std::optional<std::string_view> takeKeyword() { return lexer.takeKeyword(); }
-  bool takeKeyword(std::string_view expected) {
-    return lexer.takeKeyword(expected);
-  }
-  std::optional<uint64_t> takeOffset() { return lexer.takeOffset(); }
-  std::optional<uint32_t> takeAlign() { return lexer.takeAlign(); }
-  std::optional<uint64_t> takeU64() { return lexer.takeU64(); }
-  std::optional<uint64_t> takeI64() { return lexer.takeI64(); }
-  std::optional<uint32_t> takeU32() { return lexer.takeU32(); }
-  std::optional<uint32_t> takeI32() { return lexer.takeI32(); }
-  std::optional<uint16_t> takeI16() { return lexer.takeI16(); }
-  std::optional<uint8_t> takeU8() { return lexer.takeU8(); }
-  std::optional<uint8_t> takeI8() { return lexer.takeI8(); }
-  std::optional<double> takeF64() { return lexer.takeF64(); }
-  std::optional<float> takeF32() { return lexer.takeF32(); }
-  std::optional<std::string> takeString() { return lexer.takeString(); }
-  std::optional<Name> takeName() { return lexer.takeName(); }
-  bool takeSExprStart(std::string_view expected) {
-    return lexer.takeSExprStart(expected);
-  }
-  bool peekSExprStart(std::string_view expected) {
-    return lexer.peekSExprStart(expected);
-  }
-
-  Index getPos() { return lexer.getPos(); }
-
-  [[nodiscard]] Err err(Index pos, std::string reason) {
-    std::stringstream msg;
-    msg << lexer.position(pos) << ": error: " << reason;
-    return Err{msg.str()};
-  }
-
-  [[nodiscard]] Err err(std::string reason) { return err(getPos(), reason); }
-};
-
-} // namespace wasm::WATParser
-
-#endif // parser_input_h