mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-27 11:30:10 +01:00
Richard Smith
41ed82e033
Add a `Core.String` class to the prelude representing a string view, and rename the `String` keyword to `str` and make it evaluate to `Core.String`. `Core.String` is represented as a pair of a pointer to a character (actually, to the first character of a string, but we don't have a way of modeling that yet) and a size (which should be pointer-width, but is currently always a `u64` as we don't have a `usize` equivalent yet). `Core.String` values are generated directly by the toolchain for string literal expressions. This follows the direction established at the recent summit, but the design implemented here has not been through the proposal process yet.
192 lines
10 KiB
Plaintext
192 lines
10 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/parse/testdata/generics/impl/fail_impl.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/parse/testdata/generics/impl/fail_impl.carbon
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+4]]:10: error: expected `as` in `impl` declaration [ImplExpectedAs]
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// CHECK:STDERR: impl foo bar;
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// CHECK:STDERR: ^~~
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// CHECK:STDERR:
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impl foo bar;
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+4]]:12: error: expected expression [ExpectedExpr]
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// CHECK:STDERR: impl i32 as;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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impl i32 as;
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+4]]:18: error: `impl` declarations must either end with a `;` or have a `{ ... }` block for a definition [ExpectedDeclSemiOrDefinition]
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// CHECK:STDERR: impl bool as bar unexpected;
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// CHECK:STDERR: ^~~~~~~~~~
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// CHECK:STDERR:
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impl bool as bar unexpected;
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+4]]:6: error: expected expression [ExpectedExpr]
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// CHECK:STDERR: impl return as A;
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// CHECK:STDERR: ^~~~~~
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// CHECK:STDERR:
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impl return as A;
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+4]]:6: error: expected expression [ExpectedExpr]
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// CHECK:STDERR: impl return B;
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// CHECK:STDERR: ^~~~~~
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// CHECK:STDERR:
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impl return B;
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+8]]:13: error: expected `[` after `forall` in `impl` declaration [ImplExpectedAfterForall]
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// CHECK:STDERR: impl forall f32;
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// CHECK:STDERR: ^~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+4]]:16: error: expected `as` in `impl` declaration [ImplExpectedAs]
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// CHECK:STDERR: impl forall f32;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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impl forall f32;
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+4]]:19: error: expected `as` in `impl` declaration [ImplExpectedAs]
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// CHECK:STDERR: impl forall [] u32;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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impl forall [] u32;
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+8]]:21: error: expected `:` or `:!` in binding pattern [ExpectedBindingPattern]
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// CHECK:STDERR: impl forall [invalid] i8;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+4]]:25: error: expected `as` in `impl` declaration [ImplExpectedAs]
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// CHECK:STDERR: impl forall [invalid] i8;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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impl forall [invalid] i8;
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+4]]:13: error: expected `[` after `forall` in `impl` declaration [ImplExpectedAfterForall]
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// CHECK:STDERR: impl forall f16 as Quux;
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// CHECK:STDERR: ^~~
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// CHECK:STDERR:
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impl forall f16 as Quux;
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+4]]:27: error: expected `as` in `impl` declaration [ImplExpectedAs]
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// CHECK:STDERR: impl forall [T:! type] str;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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impl forall [T:! type] str;
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+4]]:26: error: expected `as` in `impl` declaration [ImplExpectedAs]
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// CHECK:STDERR: impl forall [T:! type] T missing_as;
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// CHECK:STDERR: ^~~~~~~~~~
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// CHECK:STDERR:
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impl forall [T:! type] T missing_as;
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+4]]:39: error: `impl` declarations must either end with a `;` or have a `{ ... }` block for a definition [ExpectedDeclSemiOrDefinition]
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// CHECK:STDERR: impl forall [T:! type] T as Interface extra;
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// CHECK:STDERR: ^~~~~
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// CHECK:STDERR:
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impl forall [T:! type] T as Interface extra;
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+4]]:5: error: expected expression [ExpectedExpr]
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// CHECK:STDERR: impl;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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impl;
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impl
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// CHECK:STDERR: fail_impl.carbon:[[@LINE+92]]:21: error: expected expression [ExpectedExpr]
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// CHECK:STDERR: // CHECK:STDOUT: ]
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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// CHECK:STDOUT: - filename: fail_impl.carbon
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// CHECK:STDOUT: parse_tree: [
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// CHECK:STDOUT: {kind: 'FileStart', text: ''},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'foo'},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: ';', has_error: yes, subtree_size: 3},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
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// CHECK:STDOUT: {kind: 'TypeImplAs', text: 'as', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'InvalidParse', text: ';', has_error: yes},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: ';', has_error: yes, subtree_size: 5},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'BoolTypeLiteral', text: 'bool'},
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// CHECK:STDOUT: {kind: 'TypeImplAs', text: 'as', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'bar'},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: ';', has_error: yes, subtree_size: 5},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'InvalidParse', text: 'return', has_error: yes},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: ';', has_error: yes, subtree_size: 3},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'InvalidParse', text: 'return', has_error: yes},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: ';', has_error: yes, subtree_size: 3},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'Forall', text: 'forall'},
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// CHECK:STDOUT: {kind: 'InvalidParse', text: 'f32', has_error: yes},
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// CHECK:STDOUT: {kind: 'FloatTypeLiteral', text: 'f32'},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: ';', has_error: yes, subtree_size: 5},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'Forall', text: 'forall'},
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// CHECK:STDOUT: {kind: 'ImplicitParamListStart', text: '['},
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// CHECK:STDOUT: {kind: 'ImplicitParamList', text: ']', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'UnsignedIntTypeLiteral', text: 'u32'},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: ';', has_error: yes, subtree_size: 6},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'Forall', text: 'forall'},
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// CHECK:STDOUT: {kind: 'ImplicitParamListStart', text: '['},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: 'invalid'},
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// CHECK:STDOUT: {kind: 'InvalidParse', text: ']', has_error: yes},
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// CHECK:STDOUT: {kind: 'LetBindingPattern', text: 'invalid', has_error: yes, subtree_size: 3},
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// CHECK:STDOUT: {kind: 'ImplicitParamList', text: ']', has_error: yes, subtree_size: 5},
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// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i8'},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: ';', has_error: yes, subtree_size: 9},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'Forall', text: 'forall'},
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// CHECK:STDOUT: {kind: 'InvalidParse', text: 'f16', has_error: yes},
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// CHECK:STDOUT: {kind: 'FloatTypeLiteral', text: 'f16'},
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// CHECK:STDOUT: {kind: 'TypeImplAs', text: 'as', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'Quux'},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: ';', has_error: yes, subtree_size: 7},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'Forall', text: 'forall'},
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// CHECK:STDOUT: {kind: 'ImplicitParamListStart', text: '['},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: 'T'},
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// CHECK:STDOUT: {kind: 'CompileTimeBindingPatternStart', text: ':!', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'TypeTypeLiteral', text: 'type'},
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// CHECK:STDOUT: {kind: 'CompileTimeBindingPattern', text: ':!', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'ImplicitParamList', text: ']', subtree_size: 6},
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// CHECK:STDOUT: {kind: 'StringTypeLiteral', text: 'str'},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: ';', has_error: yes, subtree_size: 10},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'Forall', text: 'forall'},
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// CHECK:STDOUT: {kind: 'ImplicitParamListStart', text: '['},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: 'T'},
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// CHECK:STDOUT: {kind: 'CompileTimeBindingPatternStart', text: ':!', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'TypeTypeLiteral', text: 'type'},
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// CHECK:STDOUT: {kind: 'CompileTimeBindingPattern', text: ':!', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'ImplicitParamList', text: ']', subtree_size: 6},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'T'},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: ';', has_error: yes, subtree_size: 10},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'Forall', text: 'forall'},
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// CHECK:STDOUT: {kind: 'ImplicitParamListStart', text: '['},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: 'T'},
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// CHECK:STDOUT: {kind: 'CompileTimeBindingPatternStart', text: ':!', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'TypeTypeLiteral', text: 'type'},
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// CHECK:STDOUT: {kind: 'CompileTimeBindingPattern', text: ':!', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'ImplicitParamList', text: ']', subtree_size: 6},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'T'},
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// CHECK:STDOUT: {kind: 'TypeImplAs', text: 'as', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'Interface'},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: ';', has_error: yes, subtree_size: 12},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'InvalidParse', text: ';', has_error: yes},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: ';', has_error: yes, subtree_size: 3},
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// CHECK:STDOUT: {kind: 'ImplIntroducer', text: 'impl'},
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// CHECK:STDOUT: {kind: 'InvalidParse', text: '', has_error: yes},
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// CHECK:STDOUT: {kind: 'ImplDecl', text: 'impl', has_error: yes, subtree_size: 3},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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