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carbon-lang/executable_semantics/testdata/generic_function/tuple_map.carbon
T
2021-11-02 14:53:18 -07:00

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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
//
// RUN: executable_semantics %s 2>&1 | \
// RUN: FileCheck --match-full-lines --allow-unused-prefixes=false %s
// RUN: executable_semantics --trace %s 2>&1 | \
// RUN: FileCheck --match-full-lines --allow-unused-prefixes %s
// AUTOUPDATE: executable_semantics %s
// CHECK: result: 1
package ExecutableSemanticsTest api;
fn map[T:! Type](f: __Fn (T) -> T, tuple: (T, T)) -> (T, T) {
return (f(tuple[0]), f(tuple[1]));
}
fn inc(x: i32) -> i32 { return x + 1; }
fn Main() -> i32 {
return map(inc, (0, 2))[0];
}