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https://github.com/carbon-language/carbon-lang.git
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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.
28 lines
1.9 KiB
Plaintext
28 lines
1.9 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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var s: str = '''
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error here: '''
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// Put all autoupdates below because otherwise is puts a CHECK in the middle of
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// the block string.
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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/lex/testdata/fail_block_string_second_line.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/lex/testdata/fail_block_string_second_line.carbon
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// CHECK:STDERR: fail_block_string_second_line.carbon:[[@LINE-10]]:3: error: only whitespace is permitted before the closing `'''` of a multi-line string [ContentBeforeStringTerminator]
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// CHECK:STDERR: error here: '''
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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// CHECK:STDOUT: - filename: fail_block_string_second_line.carbon
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// CHECK:STDOUT: tokens:
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// CHECK:STDOUT: - { index: 1, kind: "Var", line: {{ *}}[[@LINE-17]], column: 1, indent: 1, spelling: "var", has_leading_space: true }
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// CHECK:STDOUT: - { index: 2, kind: "Identifier", line: {{ *}}[[@LINE-18]], column: 5, indent: 1, spelling: "s", identifier: 0, has_leading_space: true }
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// CHECK:STDOUT: - { index: 3, kind: "Colon", line: {{ *}}[[@LINE-19]], column: 6, indent: 1, spelling: ":" }
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// CHECK:STDOUT: - { index: 4, kind: "StringTypeLiteral", line: {{ *}}[[@LINE-20]], column: 8, indent: 1, spelling: "str", has_leading_space: true }
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// CHECK:STDOUT: - { index: 5, kind: "Equal", line: {{ *}}[[@LINE-21]], column: 12, indent: 1, spelling: "=", has_leading_space: true }
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// CHECK:STDOUT: - { index: 6, kind: "StringLiteral", line: {{ *}}[[@LINE-22]], column: 14, indent: 1, spelling: "'''\n error here: '''", value: "error here: ", has_leading_space: true }
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