mirror of
https://github.com/carbon-language/carbon-lang.git
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Dana Jansensandzygoloid
24bde46181
In line with the proposal in #4682, this changes the array syntax to be array(T, N). `array` is a builtin keyword which must be followed by parens containing two expressions and a separating comma. The array type expression is still fully builtin, it does not forward to a Core.Array library type yet. It merely adds the `ArrayType` instruction, as was done with the previous syntax. Followup work will change the instruction to reference to Core.Array, once the library type exists and can be used directly. --------- Co-authored-by: zygoloid <richard@metafoo.co.uk>
95 lines
5.2 KiB
Plaintext
95 lines
5.2 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/basics/numeric_literals.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/basics/numeric_literals.carbon
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fn F() {
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// 8 and 9 trigger special behavior in APInt when mishandling signed versus
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// unsigned, so we pay extra attention to those.
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var ints: array(i32, 5) = (
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8,
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9,
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0x8,
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0b1000,
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39999999999999999993,
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);
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var floats: array(f64, 7) = (
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0.9,
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8.0,
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80.0,
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1.0e7,
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1.0e8,
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1.0e-8,
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39999999999999999993.0e39999999999999999993,
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);
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}
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// CHECK:STDOUT: - filename: numeric_literals.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: 'FunctionIntroducer', text: 'fn'},
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// CHECK:STDOUT: {kind: 'IdentifierNameBeforeParams', text: 'F'},
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// CHECK:STDOUT: {kind: 'ExplicitParamListStart', text: '('},
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// CHECK:STDOUT: {kind: 'ExplicitParamList', text: ')', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'FunctionDefinitionStart', text: '{', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'VariableIntroducer', text: 'var'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: 'ints'},
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// CHECK:STDOUT: {kind: 'ArrayExprKeyword', text: 'array'},
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// CHECK:STDOUT: {kind: 'ArrayExprOpenParen', text: '('},
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// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
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// CHECK:STDOUT: {kind: 'ArrayExprComma', text: ','},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '5'},
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// CHECK:STDOUT: {kind: 'ArrayExpr', text: ')', subtree_size: 6},
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// CHECK:STDOUT: {kind: 'VarBindingPattern', text: ':', subtree_size: 8},
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// CHECK:STDOUT: {kind: 'VariablePattern', text: 'var', subtree_size: 9},
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// CHECK:STDOUT: {kind: 'VariableInitializer', text: '='},
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// CHECK:STDOUT: {kind: 'TupleLiteralStart', text: '('},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '8'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '9'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '0x8'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '0b1000'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '39999999999999999993'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'TupleLiteral', text: ')', subtree_size: 12},
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// CHECK:STDOUT: {kind: 'VariableDecl', text: ';', subtree_size: 24},
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// CHECK:STDOUT: {kind: 'VariableIntroducer', text: 'var'},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeParams', text: 'floats'},
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// CHECK:STDOUT: {kind: 'ArrayExprKeyword', text: 'array'},
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// CHECK:STDOUT: {kind: 'ArrayExprOpenParen', text: '('},
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// CHECK:STDOUT: {kind: 'FloatTypeLiteral', text: 'f64'},
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// CHECK:STDOUT: {kind: 'ArrayExprComma', text: ','},
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// CHECK:STDOUT: {kind: 'IntLiteral', text: '7'},
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// CHECK:STDOUT: {kind: 'ArrayExpr', text: ')', subtree_size: 6},
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// CHECK:STDOUT: {kind: 'VarBindingPattern', text: ':', subtree_size: 8},
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// CHECK:STDOUT: {kind: 'VariablePattern', text: 'var', subtree_size: 9},
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// CHECK:STDOUT: {kind: 'VariableInitializer', text: '='},
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// CHECK:STDOUT: {kind: 'TupleLiteralStart', text: '('},
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// CHECK:STDOUT: {kind: 'RealLiteral', text: '0.9'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'RealLiteral', text: '8.0'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'RealLiteral', text: '80.0'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'RealLiteral', text: '1.0e7'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'RealLiteral', text: '1.0e8'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'RealLiteral', text: '1.0e-8'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'RealLiteral', text: '39999999999999999993.0e39999999999999999993'},
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// CHECK:STDOUT: {kind: 'TupleLiteralComma', text: ','},
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// CHECK:STDOUT: {kind: 'TupleLiteral', text: ')', subtree_size: 16},
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// CHECK:STDOUT: {kind: 'VariableDecl', text: ';', subtree_size: 28},
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// CHECK:STDOUT: {kind: 'FunctionDefinition', text: '}', subtree_size: 58},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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