// 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
// 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(a: i32) {}
fn Run2(a: i32, b: i32) {}

fn Main() {
  // CHECK:STDERR: fail_param_count.carbon:[[@LINE+7]]:3: error: 1 argument passed to function expecting 0 arguments [CallArgCountMismatch]
  // CHECK:STDERR:   Run0(1);
  // CHECK:STDERR:   ^~~~~
  // CHECK:STDERR: fail_param_count.carbon:[[@LINE-8]]:1: note: calling function declared here [InCallToEntity]
  // CHECK:STDERR: fn Run0() {}
  // CHECK:STDERR: ^~~~~~~~~~~
  // CHECK:STDERR:
  Run0(1);
  // CHECK:STDERR: fail_param_count.carbon:[[@LINE+7]]:3: error: 2 arguments passed to function expecting 0 arguments [CallArgCountMismatch]
  // CHECK:STDERR:   Run0(0, 1);
  // CHECK:STDERR:   ^~~~~
  // CHECK:STDERR: fail_param_count.carbon:[[@LINE-16]]:1: note: calling function declared here [InCallToEntity]
  // CHECK:STDERR: fn Run0() {}
  // CHECK:STDERR: ^~~~~~~~~~~
  // CHECK:STDERR:
  Run0(0, 1);

  // CHECK:STDERR: fail_param_count.carbon:[[@LINE+7]]:3: error: 0 arguments passed to function expecting 1 argument [CallArgCountMismatch]
  // CHECK:STDERR:   Run1();
  // CHECK:STDERR:   ^~~~~
  // CHECK:STDERR: fail_param_count.carbon:[[@LINE-24]]:1: note: calling function declared here [InCallToEntity]
  // CHECK:STDERR: fn Run1(a: i32) {}
  // CHECK:STDERR: ^~~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  Run1();
  // CHECK:STDERR: fail_param_count.carbon:[[@LINE+7]]:3: error: 2 arguments passed to function expecting 1 argument [CallArgCountMismatch]
  // CHECK:STDERR:   Run1(0, 1);
  // CHECK:STDERR:   ^~~~~
  // CHECK:STDERR: fail_param_count.carbon:[[@LINE-32]]:1: note: calling function declared here [InCallToEntity]
  // CHECK:STDERR: fn Run1(a: i32) {}
  // CHECK:STDERR: ^~~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  Run1(0, 1);

  // CHECK:STDERR: fail_param_count.carbon:[[@LINE+7]]:3: error: 0 arguments passed to function expecting 2 arguments [CallArgCountMismatch]
  // CHECK:STDERR:   Run2();
  // CHECK:STDERR:   ^~~~~
  // CHECK:STDERR: fail_param_count.carbon:[[@LINE-40]]:1: note: calling function declared here [InCallToEntity]
  // CHECK:STDERR: fn Run2(a: i32, b: i32) {}
  // CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  Run2();
  // CHECK:STDERR: fail_param_count.carbon:[[@LINE+6]]:3: error: 1 argument passed to function expecting 2 arguments [CallArgCountMismatch]
  // CHECK:STDERR:   Run2(0);
  // CHECK:STDERR:   ^~~~~
  // CHECK:STDERR: fail_param_count.carbon:[[@LINE-48]]:1: note: calling function declared here [InCallToEntity]
  // CHECK:STDERR: fn Run2(a: i32, b: i32) {}
  // CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~
  Run2(0);
}

// CHECK:STDOUT: --- fail_param_count.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Run0.type: type = fn_type @Run0 [template]
// CHECK:STDOUT:   %Run0: %Run0.type = struct_value () [template]
// CHECK:STDOUT:   %.1: Core.IntLiteral = int_value 32 [template]
// CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
// CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
// CHECK:STDOUT:   %i32: type = int_type signed, %.1 [template]
// CHECK:STDOUT:   %Run1.type: type = fn_type @Run1 [template]
// CHECK:STDOUT:   %Run1: %Run1.type = struct_value () [template]
// CHECK:STDOUT:   %Run2.type: type = fn_type @Run2 [template]
// CHECK:STDOUT:   %Run2: %Run2.type = struct_value () [template]
// CHECK:STDOUT:   %Main.type: type = fn_type @Main [template]
// CHECK:STDOUT:   %Main: %Main.type = struct_value () [template]
// CHECK:STDOUT:   %.2: Core.IntLiteral = int_value 1 [template]
// CHECK:STDOUT:   %.3: Core.IntLiteral = int_value 0 [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT:     .Int = %import_ref
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [template] {
// 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 [template = constants.%Run0] {} {}
// CHECK:STDOUT:   %Run1.decl: %Run1.type = fn_decl @Run1 [template = constants.%Run1] {
// CHECK:STDOUT:     %a.patt: %i32 = binding_pattern a
// CHECK:STDOUT:     %a.param_patt: %i32 = value_param_pattern %a.patt, runtime_param0
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.loc12_12.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT:     %int.make_type_signed: init type = call constants.%Int(%.loc12_12.1) [template = constants.%i32]
// CHECK:STDOUT:     %.loc12_12.2: type = value_of_initializer %int.make_type_signed [template = constants.%i32]
// CHECK:STDOUT:     %.loc12_12.3: type = converted %int.make_type_signed, %.loc12_12.2 [template = constants.%i32]
// CHECK:STDOUT:     %a.param: %i32 = value_param runtime_param0
// CHECK:STDOUT:     %a: %i32 = bind_name a, %a.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Run2.decl: %Run2.type = fn_decl @Run2 [template = constants.%Run2] {
// CHECK:STDOUT:     %a.patt: %i32 = binding_pattern a
// CHECK:STDOUT:     %a.param_patt: %i32 = value_param_pattern %a.patt, runtime_param0
// CHECK:STDOUT:     %b.patt: %i32 = binding_pattern b
// CHECK:STDOUT:     %b.param_patt: %i32 = value_param_pattern %b.patt, runtime_param1
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %.loc13_12.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT:     %int.make_type_signed.loc13_12: init type = call constants.%Int(%.loc13_12.1) [template = constants.%i32]
// CHECK:STDOUT:     %.loc13_12.2: type = value_of_initializer %int.make_type_signed.loc13_12 [template = constants.%i32]
// CHECK:STDOUT:     %.loc13_12.3: type = converted %int.make_type_signed.loc13_12, %.loc13_12.2 [template = constants.%i32]
// CHECK:STDOUT:     %.loc13_20.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT:     %int.make_type_signed.loc13_20: init type = call constants.%Int(%.loc13_20.1) [template = constants.%i32]
// CHECK:STDOUT:     %.loc13_20.2: type = value_of_initializer %int.make_type_signed.loc13_20 [template = constants.%i32]
// CHECK:STDOUT:     %.loc13_20.3: type = converted %int.make_type_signed.loc13_20, %.loc13_20.2 [template = constants.%i32]
// CHECK:STDOUT:     %a.param: %i32 = value_param runtime_param0
// CHECK:STDOUT:     %a: %i32 = bind_name a, %a.param
// CHECK:STDOUT:     %b.param: %i32 = value_param runtime_param1
// CHECK:STDOUT:     %b: %i32 = bind_name b, %b.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Main.decl: %Main.type = fn_decl @Main [template = 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_patt: %i32) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Run2(%a.param_patt: %i32, %b.param_patt: %i32) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Main() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %Run0.ref.loc23: %Run0.type = name_ref Run0, file.%Run0.decl [template = constants.%Run0]
// CHECK:STDOUT:   %.loc23: Core.IntLiteral = int_value 1 [template = constants.%.2]
// CHECK:STDOUT:   %Run0.ref.loc31: %Run0.type = name_ref Run0, file.%Run0.decl [template = constants.%Run0]
// CHECK:STDOUT:   %.loc31_8: Core.IntLiteral = int_value 0 [template = constants.%.3]
// CHECK:STDOUT:   %.loc31_11: Core.IntLiteral = int_value 1 [template = constants.%.2]
// CHECK:STDOUT:   %Run1.ref.loc40: %Run1.type = name_ref Run1, file.%Run1.decl [template = constants.%Run1]
// CHECK:STDOUT:   %Run1.ref.loc48: %Run1.type = name_ref Run1, file.%Run1.decl [template = constants.%Run1]
// CHECK:STDOUT:   %.loc48_8: Core.IntLiteral = int_value 0 [template = constants.%.3]
// CHECK:STDOUT:   %.loc48_11: Core.IntLiteral = int_value 1 [template = constants.%.2]
// CHECK:STDOUT:   %Run2.ref.loc57: %Run2.type = name_ref Run2, file.%Run2.decl [template = constants.%Run2]
// CHECK:STDOUT:   %Run2.ref.loc64: %Run2.type = name_ref Run2, file.%Run2.decl [template = constants.%Run2]
// CHECK:STDOUT:   %.loc64: Core.IntLiteral = int_value 0 [template = constants.%.3]
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT: