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Fix function parameter parsing past 2 params. (#2542)

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The comment on FunctionParameterFinish is actually correct (`1. FunctionParameter`), just a typo in the implementation. It specifically failed parsing at the comma after the 2nd param, regardless of whether there were more params.
This commit is contained in:
Jon Ross-Perkins
2023-01-23 13:28:34 -08:00
committed by GitHub
parent ec683d1ab2
commit 82f7d06855
6 changed files with 106 additions and 4 deletions
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toolchain/parser/testdata/function/declaration/params_two.carbon
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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// AUTOUPDATE
// RUN: %{carbon-run-parser}
// CHECK:STDOUT: [
// CHECK:STDOUT: {kind: 'FunctionIntroducer', text: 'fn'},
// CHECK:STDOUT: {kind: 'DeclaredName', text: 'foo'},
// CHECK:STDOUT: {kind: 'ParameterListStart', text: '('},
// CHECK:STDOUT: {kind: 'DeclaredName', text: 'a'},
// CHECK:STDOUT: {kind: 'Literal', text: 'i32'},
// CHECK:STDOUT: {kind: 'PatternBinding', text: ':', subtree_size: 3},
// CHECK:STDOUT: {kind: 'ParameterListComma', text: ','},
// CHECK:STDOUT: {kind: 'DeclaredName', text: 'b'},
// CHECK:STDOUT: {kind: 'Literal', text: 'i32'},
// CHECK:STDOUT: {kind: 'PatternBinding', text: ':', subtree_size: 3},
// CHECK:STDOUT: {kind: 'ParameterList', text: ')', subtree_size: 9},
// CHECK:STDOUT: {kind: 'FunctionDeclaration', text: ';', subtree_size: 12},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]
fn foo(a: i32, b: i32);