mirror of
https://github.com/carbon-language/carbon-lang.git
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oli-ej
c6b54b57e2
Implements check and pattern matching support for struct patterns. This PR implements complete patterns, and leaves `_` field handling for future work.
122 lines
6.5 KiB
Plaintext
122 lines
6.5 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/var/var_struct.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/var/var_struct.carbon
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// --- var_struct.carbon
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var {.s = s: str, .i = i: 32} = {.s = "hello", .i = 0};
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// --- var_struct_shorthand.carbon
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var {s: str, i: 32} = {.s = "hello shorthand", .i = 1};
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// --- var_struct_mixed.carbon
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var {.s = s: str, i: 32} = {.s = "hello mixed", .i = 1};
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// CHECK:STDOUT: - filename: var_struct.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─VariableIntroducer 'var'
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// CHECK:STDOUT: │ │ ╭─StructPatternStart '{'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 's'
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// CHECK:STDOUT: │ │ │ ╭─StructFieldDesignator '.'
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// CHECK:STDOUT: │ │ │ │ ╭─IdentifierNameNotBeforeSignature 's'
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// CHECK:STDOUT: │ │ │ │ ├─BindingPatternTypeStart ':'
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// CHECK:STDOUT: │ │ │ │ ├─StringTypeLiteral 'str'
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// CHECK:STDOUT: │ │ │ ├─VarBindingPattern ':'
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// CHECK:STDOUT: │ │ ├─StructPatternDesignatedField '='
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// CHECK:STDOUT: │ │ ├─PatternListComma ','
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 'i'
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// CHECK:STDOUT: │ │ │ ╭─StructFieldDesignator '.'
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// CHECK:STDOUT: │ │ │ │ ╭─IdentifierNameNotBeforeSignature 'i'
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// CHECK:STDOUT: │ │ │ │ ├─BindingPatternTypeStart ':'
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// CHECK:STDOUT: │ │ │ │ ├─IntLiteral '32'
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// CHECK:STDOUT: │ │ │ ├─VarBindingPattern ':'
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// CHECK:STDOUT: │ │ ├─StructPatternDesignatedField '='
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// CHECK:STDOUT: │ │ ╭─StructPattern '}'
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// CHECK:STDOUT: │ ├─VariablePattern 'var'
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// CHECK:STDOUT: │ ├─VariableInitializer '='
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// CHECK:STDOUT: │ │ ╭─StructLiteralStart '{'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 's'
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// CHECK:STDOUT: │ │ │ ╭─StructFieldDesignator '.'
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// CHECK:STDOUT: │ │ │ ├─StringLiteral '"hello"'
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// CHECK:STDOUT: │ │ ├─StructLiteralField '='
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// CHECK:STDOUT: │ │ ├─StructLiteralComma ','
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 'i'
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// CHECK:STDOUT: │ │ │ ╭─StructFieldDesignator '.'
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// CHECK:STDOUT: │ │ │ ├─IntLiteral '0'
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// CHECK:STDOUT: │ │ ├─StructLiteralField '='
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// CHECK:STDOUT: │ ├─StructLiteral '}'
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// CHECK:STDOUT: ├─VariableDecl ';'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: var_struct_shorthand.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─VariableIntroducer 'var'
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// CHECK:STDOUT: │ │ ╭─StructPatternStart '{'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 's'
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// CHECK:STDOUT: │ │ │ ├─BindingPatternTypeStart ':'
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// CHECK:STDOUT: │ │ │ ├─StringTypeLiteral 'str'
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// CHECK:STDOUT: │ │ ├─StructPatternFieldVarBindingPattern ':'
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// CHECK:STDOUT: │ │ ├─PatternListComma ','
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 'i'
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// CHECK:STDOUT: │ │ │ ├─BindingPatternTypeStart ':'
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// CHECK:STDOUT: │ │ │ ├─IntLiteral '32'
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// CHECK:STDOUT: │ │ ├─StructPatternFieldVarBindingPattern ':'
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// CHECK:STDOUT: │ │ ╭─StructPattern '}'
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// CHECK:STDOUT: │ ├─VariablePattern 'var'
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// CHECK:STDOUT: │ ├─VariableInitializer '='
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// CHECK:STDOUT: │ │ ╭─StructLiteralStart '{'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 's'
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// CHECK:STDOUT: │ │ │ ╭─StructFieldDesignator '.'
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// CHECK:STDOUT: │ │ │ ├─StringLiteral '"hello shorthand"'
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// CHECK:STDOUT: │ │ ├─StructLiteralField '='
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// CHECK:STDOUT: │ │ ├─StructLiteralComma ','
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 'i'
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// CHECK:STDOUT: │ │ │ ╭─StructFieldDesignator '.'
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// CHECK:STDOUT: │ │ │ ├─IntLiteral '1'
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// CHECK:STDOUT: │ │ ├─StructLiteralField '='
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// CHECK:STDOUT: │ ├─StructLiteral '}'
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// CHECK:STDOUT: ├─VariableDecl ';'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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// CHECK:STDOUT: - filename: var_struct_mixed.carbon
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// CHECK:STDOUT: ╭─FileStart ''
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// CHECK:STDOUT: │ ╭─VariableIntroducer 'var'
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// CHECK:STDOUT: │ │ ╭─StructPatternStart '{'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 's'
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// CHECK:STDOUT: │ │ │ ╭─StructFieldDesignator '.'
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// CHECK:STDOUT: │ │ │ │ ╭─IdentifierNameNotBeforeSignature 's'
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// CHECK:STDOUT: │ │ │ │ ├─BindingPatternTypeStart ':'
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// CHECK:STDOUT: │ │ │ │ ├─StringTypeLiteral 'str'
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// CHECK:STDOUT: │ │ │ ├─VarBindingPattern ':'
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// CHECK:STDOUT: │ │ ├─StructPatternDesignatedField '='
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// CHECK:STDOUT: │ │ ├─PatternListComma ','
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 'i'
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// CHECK:STDOUT: │ │ │ ├─BindingPatternTypeStart ':'
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// CHECK:STDOUT: │ │ │ ├─IntLiteral '32'
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// CHECK:STDOUT: │ │ ├─StructPatternFieldVarBindingPattern ':'
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// CHECK:STDOUT: │ │ ╭─StructPattern '}'
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// CHECK:STDOUT: │ ├─VariablePattern 'var'
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// CHECK:STDOUT: │ ├─VariableInitializer '='
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// CHECK:STDOUT: │ │ ╭─StructLiteralStart '{'
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 's'
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// CHECK:STDOUT: │ │ │ ╭─StructFieldDesignator '.'
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// CHECK:STDOUT: │ │ │ ├─StringLiteral '"hello mixed"'
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// CHECK:STDOUT: │ │ ├─StructLiteralField '='
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// CHECK:STDOUT: │ │ ├─StructLiteralComma ','
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// CHECK:STDOUT: │ │ │ ╭─IdentifierNameNotBeforeSignature 'i'
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// CHECK:STDOUT: │ │ │ ╭─StructFieldDesignator '.'
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// CHECK:STDOUT: │ │ │ ├─IntLiteral '1'
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// CHECK:STDOUT: │ │ ├─StructLiteralField '='
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// CHECK:STDOUT: │ ├─StructLiteral '}'
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// CHECK:STDOUT: ├─VariableDecl ';'
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// CHECK:STDOUT: ├─FileEnd ''
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// CHECK:STDOUT: (root)
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