mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 20:10:13 +01:00
Geoff Romer
4a0cf6c1fb
This change ensures that a function signature always starts with an `IdentifierNameMaybeBeforeSignature` node (renamed from `IdentifierNameBeforeParams`), even in the case of function declarations like `fn F -> T` that have no parameter list. As a consequence, this ensures that we push new entries onto `pattern_block_stack` and `full_pattern_stack` when we start processing the function signature.
105 lines
5.5 KiB
Plaintext
105 lines
5.5 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/operators/modifier.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/operators/modifier.carbon
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// --- valid.carbon
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fn F() {
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a unsafe as b;
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}
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// --- fail_invalid.carbon
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fn G() {
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// CHECK:STDERR: fail_invalid.carbon:[[@LINE+4]]:5: error: `unsafe` not allowed on operator `or` [ModifierNotAllowedOnOperator]
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// CHECK:STDERR: a unsafe or b;
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// CHECK:STDERR: ^~~~~~
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// CHECK:STDERR:
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a unsafe or b;
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// CHECK:STDERR: fail_invalid.carbon:[[@LINE+4]]:5: error: `unsafe` not allowed on operator `*` [ModifierNotAllowedOnOperator]
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// CHECK:STDERR: a unsafe * b;
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// CHECK:STDERR: ^~~~~~
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// CHECK:STDERR:
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a unsafe * b;
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// CHECK:STDERR: fail_invalid.carbon:[[@LINE+4]]:5: error: expected `;` after expression statement [ExpectedExprSemi]
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// CHECK:STDERR: a unsafe;
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// CHECK:STDERR: ^~~~~~
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// CHECK:STDERR:
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a unsafe;
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// CHECK:STDERR: fail_invalid.carbon:[[@LINE+4]]:3: error: expected expression [ExpectedExpr]
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// CHECK:STDERR: unsafe;
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// CHECK:STDERR: ^~~~~~
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// CHECK:STDERR:
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unsafe;
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// TODO: It'd be nice to underline both tokens in `unsafe as` here.
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// CHECK:STDERR: fail_invalid.carbon:[[@LINE+8]]:9: error: parentheses are required to disambiguate operator precedence [OperatorRequiresParentheses]
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// CHECK:STDERR: a + b unsafe as c * d;
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// CHECK:STDERR: ^~~~~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_invalid.carbon:[[@LINE+4]]:21: error: parentheses are required to disambiguate operator precedence [OperatorRequiresParentheses]
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// CHECK:STDERR: a + b unsafe as c * d;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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a + b unsafe as c * d;
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}
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// CHECK:STDOUT: - filename: valid.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: 'IdentifierNameMaybeBeforeSignature', 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: 'IdentifierNameExpr', text: 'a'},
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// CHECK:STDOUT: {kind: 'UnsafeModifier', text: 'unsafe', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'b'},
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// CHECK:STDOUT: {kind: 'InfixOperatorAs', text: 'as', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'ExprStatement', text: ';', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'FunctionDefinition', text: '}', subtree_size: 11},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: - filename: fail_invalid.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: 'IdentifierNameMaybeBeforeSignature', text: 'G'},
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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: 'IdentifierNameExpr', text: 'a'},
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// CHECK:STDOUT: {kind: 'ShortCircuitOperandOr', text: 'or', has_error: yes, subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'b'},
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// CHECK:STDOUT: {kind: 'ShortCircuitOperatorOr', text: 'or', has_error: yes, subtree_size: 4},
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// CHECK:STDOUT: {kind: 'ExprStatement', text: ';', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'a'},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'b'},
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// CHECK:STDOUT: {kind: 'InfixOperatorStar', text: '*', has_error: yes, subtree_size: 3},
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// CHECK:STDOUT: {kind: 'ExprStatement', text: ';', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'a'},
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// CHECK:STDOUT: {kind: 'ExprStatement', text: ';', has_error: yes, subtree_size: 2},
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// CHECK:STDOUT: {kind: 'InvalidParse', text: 'unsafe', has_error: yes},
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// CHECK:STDOUT: {kind: 'ExprStatement', text: ';', has_error: yes, subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'a'},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'b'},
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// CHECK:STDOUT: {kind: 'InfixOperatorPlus', text: '+', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'UnsafeModifier', text: 'unsafe', has_error: yes, subtree_size: 4},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'c'},
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// CHECK:STDOUT: {kind: 'InfixOperatorAs', text: 'as', has_error: yes, subtree_size: 6},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'd'},
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// CHECK:STDOUT: {kind: 'InfixOperatorStar', text: '*', has_error: yes, subtree_size: 8},
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// CHECK:STDOUT: {kind: 'ExprStatement', text: ';', subtree_size: 9},
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// CHECK:STDOUT: {kind: 'FunctionDefinition', text: '}', subtree_size: 28},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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