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carbon-lang/toolchain/check/testdata/basics/fail_numeric_literal_overflow.carbon
T
Richard SmithandJon Ross-Perkins fcfb1345d5 Support accessing associated functions by member access into facets (#4872) 
For an expression such as `(Type as Interface).AssocFn()`, track the
`Self` type `Type` in the result of the member access so that it's
available when checking the function call.

This introduces a new kind of type, `ImplFunctionType`, that represents
the type of a function that is expected within an impl, modeled as the
type of the function within the interface plus a value to use as `Self`.
Calls to values of this type behave like calls to the underlying
function except that the `Self` parameter is pre-bound to the self type
from the facet.

In order to support this, fix an issue where the imported list of
generic bindings lost their association with their enclosing generic.
This adds a little complexity to `import_ref`, including a new recursive
cycle that I intend to address in a follow-up PR.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
2025-02-04 22:38:38 +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
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/basics/fail_numeric_literal_overflow.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/basics/fail_numeric_literal_overflow.carbon
// CHECK:STDERR: fail_numeric_literal_overflow.carbon:[[@LINE+4]]:14: error: integer value 39999999999999999993 too large for type `i32` [IntTooLargeForType]
// CHECK:STDERR: let a: i32 = 39999999999999999993;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
let a: i32 = 39999999999999999993;
// CHECK:STDERR: fail_numeric_literal_overflow.carbon:[[@LINE+4]]:14: error: integer value 2147483648 too large for type `i32` [IntTooLargeForType]
// CHECK:STDERR: let b: i32 = 2_147_483_648;
// CHECK:STDERR: ^~~~~~~~~~~~~
// CHECK:STDERR:
let b: i32 = 2_147_483_648;
// CHECK:STDERR: fail_numeric_literal_overflow.carbon:[[@LINE+4]]:14: error: integer value 2147483648 too large for type `i32` [IntTooLargeForType]
// CHECK:STDERR: let c: i32 = 0x8000_0000;
// CHECK:STDERR: ^~~~~~~~~~~
// CHECK:STDERR:
let c: i32 = 0x8000_0000;
// CHECK:STDERR: fail_numeric_literal_overflow.carbon:[[@LINE+4]]:14: error: real mantissa with value 399999999999999999930 does not fit in i64 [RealMantissaTooLargeForI64]
// CHECK:STDERR: let d: f64 = 39999999999999999993.0e3;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
let d: f64 = 39999999999999999993.0e3;
// CHECK:STDERR: fail_numeric_literal_overflow.carbon:[[@LINE+4]]:14: error: real exponent with value 39999999999999999992 does not fit in i64 [RealExponentTooLargeForI64]
// CHECK:STDERR: let e: f64 = 5.0e39999999999999999993;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
let e: f64 = 5.0e39999999999999999993;
// CHECK:STDOUT: --- fail_numeric_literal_overflow.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [template]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [template]
// CHECK:STDOUT: %int_39999999999999999993.af6: Core.IntLiteral = int_value 39999999999999999993 [template]
// CHECK:STDOUT: %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [template]
// CHECK:STDOUT: %Convert.type.1b6: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
// CHECK:STDOUT: %impl_witness.d39: <witness> = impl_witness (imports.%Core.import_ref.a5b), @impl.1(%int_32) [template]
// CHECK:STDOUT: %Convert.type.035: type = fn_type @Convert.2, @impl.1(%int_32) [template]
// CHECK:STDOUT: %Convert.956: %Convert.type.035 = struct_value () [template]
// CHECK:STDOUT: %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, %impl_witness.d39 [template]
// CHECK:STDOUT: %.a0b: type = fn_type_with_self_type %Convert.type.1b6, %ImplicitAs.facet [template]
// CHECK:STDOUT: %Convert.bound.7ef: <bound method> = bound_method %int_39999999999999999993.af6, %Convert.956 [template]
// CHECK:STDOUT: %Convert.specific_fn.2ed: <specific function> = specific_function %Convert.bound.7ef, @Convert.2(%int_32) [template]
// CHECK:STDOUT: %int_39999999999999999993.dee: %i32 = int_value 39999999999999999993 [template]
// CHECK:STDOUT: %int_2147483648.1db: Core.IntLiteral = int_value 2147483648 [template]
// CHECK:STDOUT: %Convert.bound.85f: <bound method> = bound_method %int_2147483648.1db, %Convert.956 [template]
// CHECK:STDOUT: %Convert.specific_fn.387: <specific function> = specific_function %Convert.bound.85f, @Convert.2(%int_32) [template]
// CHECK:STDOUT: %int_2147483648.8df: %i32 = int_value 2147483648 [template]
// CHECK:STDOUT: %int_64: Core.IntLiteral = int_value 64 [template]
// CHECK:STDOUT: %Float.type: type = fn_type @Float [template]
// CHECK:STDOUT: %Float: %Float.type = struct_value () [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int = %Core.Int
// CHECK:STDOUT: .ImplicitAs = %Core.ImplicitAs
// CHECK:STDOUT: .Float = %Core.Float
// 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: .a = %a
// CHECK:STDOUT: .b = %b
// CHECK:STDOUT: .c = %c
// CHECK:STDOUT: .d = %d
// CHECK:STDOUT: .e = %e
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %a.patt: %i32 = binding_pattern a
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc15_8: type = splice_block %i32.loc15 [template = constants.%i32] {
// CHECK:STDOUT: %int_32.loc15: Core.IntLiteral = int_value 32 [template = constants.%int_32]
// CHECK:STDOUT: %i32.loc15: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %impl.elem0.loc15: %.a0b = impl_witness_access constants.%impl_witness.d39, element0 [template = constants.%Convert.956]
// CHECK:STDOUT: %bound_method.loc15: <bound method> = bound_method @__global_init.%int_39999999999999999993, %impl.elem0.loc15 [template = constants.%Convert.bound.7ef]
// CHECK:STDOUT: %specific_fn.loc15: <specific function> = specific_function %bound_method.loc15, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.2ed]
// CHECK:STDOUT: %int.convert_checked.loc15: init %i32 = call %specific_fn.loc15(@__global_init.%int_39999999999999999993) [template = constants.%int_39999999999999999993.dee]
// CHECK:STDOUT: %.loc15_14.1: %i32 = value_of_initializer %int.convert_checked.loc15 [template = constants.%int_39999999999999999993.dee]
// CHECK:STDOUT: %.loc15_14.2: %i32 = converted @__global_init.%int_39999999999999999993, %.loc15_14.1 [template = constants.%int_39999999999999999993.dee]
// CHECK:STDOUT: %a: %i32 = bind_name a, %.loc15_14.2
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %b.patt: %i32 = binding_pattern b
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc21_8: type = splice_block %i32.loc21 [template = constants.%i32] {
// CHECK:STDOUT: %int_32.loc21: Core.IntLiteral = int_value 32 [template = constants.%int_32]
// CHECK:STDOUT: %i32.loc21: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %impl.elem0.loc21: %.a0b = impl_witness_access constants.%impl_witness.d39, element0 [template = constants.%Convert.956]
// CHECK:STDOUT: %bound_method.loc21: <bound method> = bound_method @__global_init.%int_2147483648.loc21, %impl.elem0.loc21 [template = constants.%Convert.bound.85f]
// CHECK:STDOUT: %specific_fn.loc21: <specific function> = specific_function %bound_method.loc21, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.387]
// CHECK:STDOUT: %int.convert_checked.loc21: init %i32 = call %specific_fn.loc21(@__global_init.%int_2147483648.loc21) [template = constants.%int_2147483648.8df]
// CHECK:STDOUT: %.loc21_14.1: %i32 = value_of_initializer %int.convert_checked.loc21 [template = constants.%int_2147483648.8df]
// CHECK:STDOUT: %.loc21_14.2: %i32 = converted @__global_init.%int_2147483648.loc21, %.loc21_14.1 [template = constants.%int_2147483648.8df]
// CHECK:STDOUT: %b: %i32 = bind_name b, %.loc21_14.2
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %c.patt: %i32 = binding_pattern c
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc27_8: type = splice_block %i32.loc27 [template = constants.%i32] {
// CHECK:STDOUT: %int_32.loc27: Core.IntLiteral = int_value 32 [template = constants.%int_32]
// CHECK:STDOUT: %i32.loc27: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %impl.elem0.loc27: %.a0b = impl_witness_access constants.%impl_witness.d39, element0 [template = constants.%Convert.956]
// CHECK:STDOUT: %bound_method.loc27: <bound method> = bound_method @__global_init.%int_2147483648.loc27, %impl.elem0.loc27 [template = constants.%Convert.bound.85f]
// CHECK:STDOUT: %specific_fn.loc27: <specific function> = specific_function %bound_method.loc27, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.387]
// CHECK:STDOUT: %int.convert_checked.loc27: init %i32 = call %specific_fn.loc27(@__global_init.%int_2147483648.loc27) [template = constants.%int_2147483648.8df]
// CHECK:STDOUT: %.loc27_14.1: %i32 = value_of_initializer %int.convert_checked.loc27 [template = constants.%int_2147483648.8df]
// CHECK:STDOUT: %.loc27_14.2: %i32 = converted @__global_init.%int_2147483648.loc27, %.loc27_14.1 [template = constants.%int_2147483648.8df]
// CHECK:STDOUT: %c: %i32 = bind_name c, %.loc27_14.2
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %d.patt: f64 = binding_pattern d
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc33_8.1: type = splice_block %.loc33_8.3 [template = f64] {
// CHECK:STDOUT: %int_64.loc33: Core.IntLiteral = int_value 64 [template = constants.%int_64]
// CHECK:STDOUT: %float.make_type.loc33: init type = call constants.%Float(%int_64.loc33) [template = f64]
// CHECK:STDOUT: %.loc33_8.2: type = value_of_initializer %float.make_type.loc33 [template = f64]
// CHECK:STDOUT: %.loc33_8.3: type = converted %float.make_type.loc33, %.loc33_8.2 [template = f64]
// CHECK:STDOUT: }
// CHECK:STDOUT: %d: f64 = bind_name d, <error>
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %e.patt: f64 = binding_pattern e
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc39_8.1: type = splice_block %.loc39_8.3 [template = f64] {
// CHECK:STDOUT: %int_64.loc39: Core.IntLiteral = int_value 64 [template = constants.%int_64]
// CHECK:STDOUT: %float.make_type.loc39: init type = call constants.%Float(%int_64.loc39) [template = f64]
// CHECK:STDOUT: %.loc39_8.2: type = value_of_initializer %float.make_type.loc39 [template = f64]
// CHECK:STDOUT: %.loc39_8.3: type = converted %float.make_type.loc39, %.loc39_8.2 [template = f64]
// CHECK:STDOUT: }
// CHECK:STDOUT: %e: f64 = bind_name e, <error>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %int_39999999999999999993: Core.IntLiteral = int_value 39999999999999999993 [template = constants.%int_39999999999999999993.af6]
// CHECK:STDOUT: %int_2147483648.loc21: Core.IntLiteral = int_value 2147483648 [template = constants.%int_2147483648.1db]
// CHECK:STDOUT: %int_2147483648.loc27: Core.IntLiteral = int_value 2147483648 [template = constants.%int_2147483648.1db]
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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