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d0badecd2a504327f974b6282490463d82201aa5
carbon-lang/toolchain/check/testdata/function/call/fail_param_count.carbon
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Chandler Carruth d0badecd2a Switch tests to use the rendered form of diagnostics (#8070) 
Historically, we disabled the rendered form in tests outside of
`toolchain/diagnostics`. The idea was to keep tests shorter and avoid
very long chains of autoupdate before stabilizing due to all the line
numbers and other artifacts in the rendered form.

This PR adds `--diagnostic-line-numbers=[all|first]` and defaults to
`first` in tests. This keeps the rendered form so that we can easily
code review that form and the visual cues it does or doesn't provide.
But it removes all but the first location's line numbers to provide
significantly more stability in tests.

By default, tests get the full unicode line-drawing form of diagnostics
so we can ensure all of the artifacts there make sense with the specific
case being diagnosed, but we do retain some focused ASCII-rendering
tests to ensure that fallback remains usable.

There are some issues here that will be fixed in subsequent PRs.
Notably, we try to keep the frame together in the check lines, and so
force some parts to use the first location. This largely works, but
fails in some edge cases, causing the entire frame to be located
incorrectly. There is a TODO about this that we need to fix, and it only
occurs 6 times across the test suite, so it didn't seem worth
front-loading a fix for here.

Assisted-by: Claude Code
2026-11-05 07:19:59 +00:00

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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
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/function/call/fail_param_count.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/call/fail_param_count.carbon
fn Run0() {}
fn Run1(unused a: i32) {}
fn Run2(unused a: i32, unused b: i32) {}
fn Main() {
// CHECK:STDERR: ╭─┤ fail_param_count.carbon:[[@LINE+11]]:3
// CHECK:STDERR: │ fn Run0() {}
// CHECK:STDERR: · ─────┬─────
// CHECK:STDERR: · ╰──┤ calling function declared here [InCallToEntity]
// CHECK:STDERR: ┆
// CHECK:STDERR: -> │ Run0(1);
// CHECK:STDERR: · ━━━┳━━━
// CHECK:STDERR: · ┗━━┫ error: 1 argument passed to function expecting 0 arguments
// CHECK:STDERR: · ┃ [CallArgCountMismatch]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
Run0(1);
// CHECK:STDERR: ╭─┤ fail_param_count.carbon:[[@LINE+11]]:3
// CHECK:STDERR: │ fn Run0() {}
// CHECK:STDERR: · ─────┬─────
// CHECK:STDERR: · ╰──┤ calling function declared here [InCallToEntity]
// CHECK:STDERR: ┆
// CHECK:STDERR: -> │ Run0(0, 1);
// CHECK:STDERR: · ━━━━━┳━━━━
// CHECK:STDERR: · ┗━━┫ error: 2 arguments passed to function expecting 0 arguments
// CHECK:STDERR: · ┃ [CallArgCountMismatch]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
Run0(0, 1);
// CHECK:STDERR: ╭─┤ fail_param_count.carbon:[[@LINE+11]]:3
// CHECK:STDERR: │ fn Run1(unused a: i32) {}
// CHECK:STDERR: · ────────────┬───────────
// CHECK:STDERR: · ╰──┤ calling function declared here [InCallToEntity]
// CHECK:STDERR: ┆
// CHECK:STDERR: -> │ Run1();
// CHECK:STDERR: · ━━━┳━━
// CHECK:STDERR: · ┗━━┫ error: 0 arguments passed to function expecting 1 argument
// CHECK:STDERR: · ┃ [CallArgCountMismatch]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
Run1();
// CHECK:STDERR: ╭─┤ fail_param_count.carbon:[[@LINE+11]]:3
// CHECK:STDERR: │ fn Run1(unused a: i32) {}
// CHECK:STDERR: · ────────────┬───────────
// CHECK:STDERR: · ╰──┤ calling function declared here [InCallToEntity]
// CHECK:STDERR: ┆
// CHECK:STDERR: -> │ Run1(0, 1);
// CHECK:STDERR: · ━━━━━┳━━━━
// CHECK:STDERR: · ┗━━┫ error: 2 arguments passed to function expecting 1 argument
// CHECK:STDERR: · ┃ [CallArgCountMismatch]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
Run1(0, 1);
// CHECK:STDERR: ╭─┤ fail_param_count.carbon:[[@LINE+11]]:3
// CHECK:STDERR: │ fn Run2(unused a: i32, unused b: i32) {}
// CHECK:STDERR: · ───────────────────┬───────────────────
// CHECK:STDERR: · ╰──┤ calling function declared here [InCallToEntity]
// CHECK:STDERR: ┆
// CHECK:STDERR: -> │ Run2();
// CHECK:STDERR: · ━━━┳━━
// CHECK:STDERR: · ┗━━┫ error: 0 arguments passed to function expecting 2 arguments
// CHECK:STDERR: · ┃ [CallArgCountMismatch]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
Run2();
// CHECK:STDERR: ╭─┤ fail_param_count.carbon:[[@LINE+11]]:3
// CHECK:STDERR: │ fn Run2(unused a: i32, unused b: i32) {}
// CHECK:STDERR: · ───────────────────┬───────────────────
// CHECK:STDERR: · ╰──┤ calling function declared here [InCallToEntity]
// CHECK:STDERR: ┆
// CHECK:STDERR: -> │ Run2(0);
// CHECK:STDERR: · ━━━┳━━━
// CHECK:STDERR: · ┗━━┫ error: 1 argument passed to function expecting 2 arguments
// CHECK:STDERR: · ┃ [CallArgCountMismatch]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
Run2(0);
}
// CHECK:STDOUT: --- fail_param_count.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %Run0.type: type = fn_type @Run0 [concrete]
// CHECK:STDOUT: %Run0: %Run0.type = struct_value () [concrete]
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT: %Int.type: type = parameterized_class_name_type @Int [concrete]
// CHECK:STDOUT: %Int.generic: %Int.type = struct_value () [concrete]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %pattern_type.d94: type = pattern_type %i32 [concrete]
// CHECK:STDOUT: %a.param_patt: %pattern_type.d94 = value_param_pattern [concrete]
// CHECK:STDOUT: %a.patt.96f331.1: %pattern_type.d94 = wrapper_binding_pattern a, %a.param_patt [concrete]
// CHECK:STDOUT: %Run1.type: type = fn_type @Run1 [concrete]
// CHECK:STDOUT: %Run1: %Run1.type = struct_value () [concrete]
// CHECK:STDOUT: %a.patt.96f331.2: %pattern_type.d94 = wrapper_binding_pattern a, %a.param_patt [concrete]
// CHECK:STDOUT: %b.param_patt: %pattern_type.d94 = value_param_pattern [concrete]
// CHECK:STDOUT: %b.patt: %pattern_type.d94 = wrapper_binding_pattern b, %b.param_patt [concrete]
// CHECK:STDOUT: %Run2.type: type = fn_type @Run2 [concrete]
// CHECK:STDOUT: %Run2: %Run2.type = struct_value () [concrete]
// CHECK:STDOUT: %Main.type: type = fn_type @Main [concrete]
// CHECK:STDOUT: %Main: %Main.type = struct_value () [concrete]
// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete]
// CHECK:STDOUT: %int_0: Core.IntLiteral = int_value 0 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .Int = %Core.Int
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Run0 = %Run0.decl
// CHECK:STDOUT: .Run1 = %Run1.decl
// CHECK:STDOUT: .Run2 = %Run2.decl
// CHECK:STDOUT: .Main = %Main.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Run0.decl: %Run0.type = fn_decl @Run0 [concrete = constants.%Run0] {} {}
// CHECK:STDOUT: %Run1.decl: %Run1.type = fn_decl @Run1 [concrete = constants.%Run1] {
// CHECK:STDOUT: %a.param_patt: %pattern_type.d94 = value_param_pattern [concrete = constants.%a.param_patt]
// CHECK:STDOUT: %a.patt: %pattern_type.d94 = wrapper_binding_pattern a, %a.param_patt [concrete = constants.%a.patt.96f331.1]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %a.param: %i32 = value_param call_param0
// CHECK:STDOUT: %i32: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %a: %i32 = wrapper_binding a, %a.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %Run2.decl: %Run2.type = fn_decl @Run2 [concrete = constants.%Run2] {
// CHECK:STDOUT: %a.param_patt: %pattern_type.d94 = value_param_pattern [concrete = constants.%a.param_patt]
// CHECK:STDOUT: %a.patt: %pattern_type.d94 = wrapper_binding_pattern a, %a.param_patt [concrete = constants.%a.patt.96f331.2]
// CHECK:STDOUT: %b.param_patt: %pattern_type.d94 = value_param_pattern [concrete = constants.%b.param_patt]
// CHECK:STDOUT: %b.patt: %pattern_type.d94 = wrapper_binding_pattern b, %b.param_patt [concrete = constants.%b.patt]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %a.param: %i32 = value_param call_param0
// CHECK:STDOUT: %i32.loc17_19: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %a: %i32 = wrapper_binding a, %a.param
// CHECK:STDOUT: %b.param: %i32 = value_param call_param1
// CHECK:STDOUT: %i32.loc17_34: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %b: %i32 = wrapper_binding b, %b.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %Main.decl: %Main.type = fn_decl @Main [concrete = constants.%Main] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Run0() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Run1(%a.param: %i32) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Run2(%a.param: %i32, %b.param: %i32) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Run0.ref.loc31: %Run0.type = name_ref Run0, file.%Run0.decl [concrete = constants.%Run0]
// CHECK:STDOUT: %int_1.loc31: Core.IntLiteral = int_value 1 [concrete = constants.%int_1]
// CHECK:STDOUT: %Run0.ref.loc43: %Run0.type = name_ref Run0, file.%Run0.decl [concrete = constants.%Run0]
// CHECK:STDOUT: %int_0.loc43: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
// CHECK:STDOUT: %int_1.loc43: Core.IntLiteral = int_value 1 [concrete = constants.%int_1]
// CHECK:STDOUT: %Run1.ref.loc56: %Run1.type = name_ref Run1, file.%Run1.decl [concrete = constants.%Run1]
// CHECK:STDOUT: %Run1.ref.loc68: %Run1.type = name_ref Run1, file.%Run1.decl [concrete = constants.%Run1]
// CHECK:STDOUT: %int_0.loc68: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
// CHECK:STDOUT: %int_1.loc68: Core.IntLiteral = int_value 1 [concrete = constants.%int_1]
// CHECK:STDOUT: %Run2.ref.loc81: %Run2.type = name_ref Run2, file.%Run2.decl [concrete = constants.%Run2]
// CHECK:STDOUT: %Run2.ref.loc93: %Run2.type = name_ref Run2, file.%Run2.decl [concrete = constants.%Run2]
// CHECK:STDOUT: %int_0.loc93: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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