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Diagnose uses of declarations that are too early. (#2288)

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There are lots of ways a declaration can be used before we have the information necessary to handle that use. Issue diagnostics for these.

Interleave declaration and type-checking of global declarations so that declaring a later declaration can depend on the results of type-checking an earlier one.

Incorporates tests added in #2266.

Fixes #1394, fixes #1395, fixes #1396.

Co-authored-by: pmqtt <51272730+pmqtt@users.noreply.github.com>
Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
This commit is contained in:
Richard Smith
2022-10-13 15:30:29 -07:00
committed by GitHub
co-authored by pmqtt Jon Ross-Perkins
parent e111418b32
commit a3329cf004
22 changed files with 481 additions and 68 deletions
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explorer/testdata/interface/fail_member_lookup_in_definition.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
//
// RUN: %{not} %{explorer} %s 2>&1 | %{FileCheck-strict} %s
// RUN: %{not} %{explorer-trace} %s 2>&1 | %{FileCheck-allow-unmatched} %s
// AUTOUPDATE: %{explorer} %s
package ExplorerTest api;
interface Vector {
// CHECK:STDERR: COMPILATION ERROR: {{.*}}/explorer/testdata/interface/fail_member_lookup_in_definition.carbon:[[@LINE+1]]: incomplete type `interface Vector` used in member access
fn ScalarZero() -> Vector.ScalarType;
let ScalarType:! Type;
}
fn Main() -> i32 {
return 0;
}
explorer/testdata/interface/fail_self_lookup_in_definition.carbon
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+19
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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: %{not} %{explorer} %s 2>&1 | %{FileCheck-strict} %s
// RUN: %{not} %{explorer-trace} %s 2>&1 | %{FileCheck-allow-unmatched} %s
// AUTOUPDATE: %{explorer} %s
package ExplorerTest api;
interface Vector {
// CHECK:STDERR: COMPILATION ERROR: {{.*}}/explorer/testdata/interface/fail_self_lookup_in_definition.carbon:[[@LINE+1]]: incomplete type `interface Vector` used in member access
fn ScalarZero() -> Self.ScalarType;
let ScalarType:! Type;
}
fn Main() -> i32 {
return 0;
}