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20b272446f
* Modify parser and AST nodes to include let statement * Implement let variables * Remove redundant code in fail_match_choice test * Add comment for has_value_category() * Apply suggestions from code review Co-authored-by: Jon Meow <46229924+jonmeow@users.noreply.github.com> * clang-format changes * Update comments for new BindingPattern methods * Implement nested vars in patterns * Apply suggestions from @geoffromer's code review Co-authored-by: Geoff Romer <gromer@google.com> * Implement changes from code review. * Remove maybe_var_pattern grammar rule Co-authored-by: Jon Meow <46229924+jonmeow@users.noreply.github.com> Co-authored-by: Geoff Romer <gromer@google.com>
34 lines
956 B
Plaintext
34 lines
956 B
Plaintext
// 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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// RUN: %{not} %{executable_semantics} %s 2>&1 | \
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// RUN: %{FileCheck} --match-full-lines --allow-unused-prefixes=false %s
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// RUN: %{not} %{executable_semantics} --trace %s 2>&1 | \
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// RUN: %{FileCheck} --match-full-lines --allow-unused-prefixes %s
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// AUTOUPDATE: %{executable_semantics} %s
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// CHECK: COMPILATION ERROR: {{.*}}/executable_semantics/testdata/let/fail_match_choice.carbon:29: Cannot assign to rvalue 'x'
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package ExecutableSemanticsTest api;
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choice Ints {
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None,
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One(i32),
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Two(i32,i32)
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}
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fn Main() -> i32 {
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var x: auto = Ints.None();
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var n: auto = 0;
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match (x) {
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case Ints.One(var x: auto) =>
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x = 2;
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case Ints.None() =>
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n = n - 1;
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case Ints.Two(x: auto, y: auto) => {
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x = 0;
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}
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}
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return 0;
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}
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