mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 20:30:14 +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.
120 lines
6.6 KiB
Plaintext
120 lines
6.6 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/for/pattern.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/for/pattern.carbon
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// --- value.carbon
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fn foo() {
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for (x: i32 in y) {
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Print(x);
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}
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}
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// --- var.carbon
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fn foo() {
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for (var x: i32 in y) {
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Print(x);
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}
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}
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// --- tuple.carbon
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fn foo() {
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for ((x: i32, y: i32) in z) {
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Print(x);
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}
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}
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// CHECK:STDOUT: - filename: value.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: 'foo'},
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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: 'ForHeaderStart', text: '('},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'x'},
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// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
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// CHECK:STDOUT: {kind: 'LetBindingPattern', text: ':', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'ForIn', text: 'in', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'y'},
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// CHECK:STDOUT: {kind: 'ForHeader', text: ')', subtree_size: 7},
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// CHECK:STDOUT: {kind: 'CodeBlockStart', text: '{'},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'Print'},
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// CHECK:STDOUT: {kind: 'CallExprStart', text: '(', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'x'},
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// CHECK:STDOUT: {kind: 'CallExpr', text: ')', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'ExprStatement', text: ';', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'CodeBlock', text: '}', subtree_size: 7},
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// CHECK:STDOUT: {kind: 'ForStatement', text: 'for', subtree_size: 15},
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// CHECK:STDOUT: {kind: 'FunctionDefinition', text: '}', subtree_size: 21},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: - filename: var.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: 'foo'},
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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: 'ForHeaderStart', text: '('},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'x'},
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// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
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// CHECK:STDOUT: {kind: 'VarBindingPattern', text: ':', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'VariablePattern', text: 'var', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'ForIn', text: 'in', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'y'},
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// CHECK:STDOUT: {kind: 'ForHeader', text: ')', subtree_size: 8},
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// CHECK:STDOUT: {kind: 'CodeBlockStart', text: '{'},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'Print'},
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// CHECK:STDOUT: {kind: 'CallExprStart', text: '(', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'x'},
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// CHECK:STDOUT: {kind: 'CallExpr', text: ')', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'ExprStatement', text: ';', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'CodeBlock', text: '}', subtree_size: 7},
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// CHECK:STDOUT: {kind: 'ForStatement', text: 'for', subtree_size: 16},
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// CHECK:STDOUT: {kind: 'FunctionDefinition', text: '}', subtree_size: 22},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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// CHECK:STDOUT: - filename: tuple.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: 'foo'},
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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: 'ForHeaderStart', text: '('},
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// CHECK:STDOUT: {kind: 'TuplePatternStart', text: '('},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'x'},
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// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
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// CHECK:STDOUT: {kind: 'LetBindingPattern', text: ':', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'PatternListComma', text: ','},
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// CHECK:STDOUT: {kind: 'IdentifierNameNotBeforeSignature', text: 'y'},
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// CHECK:STDOUT: {kind: 'IntTypeLiteral', text: 'i32'},
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// CHECK:STDOUT: {kind: 'LetBindingPattern', text: ':', subtree_size: 3},
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// CHECK:STDOUT: {kind: 'TuplePattern', text: ')', subtree_size: 9},
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// CHECK:STDOUT: {kind: 'ForIn', text: 'in', subtree_size: 10},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'z'},
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// CHECK:STDOUT: {kind: 'ForHeader', text: ')', subtree_size: 13},
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// CHECK:STDOUT: {kind: 'CodeBlockStart', text: '{'},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'Print'},
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// CHECK:STDOUT: {kind: 'CallExprStart', text: '(', subtree_size: 2},
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// CHECK:STDOUT: {kind: 'IdentifierNameExpr', text: 'x'},
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// CHECK:STDOUT: {kind: 'CallExpr', text: ')', subtree_size: 4},
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// CHECK:STDOUT: {kind: 'ExprStatement', text: ';', subtree_size: 5},
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// CHECK:STDOUT: {kind: 'CodeBlock', text: '}', subtree_size: 7},
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// CHECK:STDOUT: {kind: 'ForStatement', text: 'for', subtree_size: 21},
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// CHECK:STDOUT: {kind: 'FunctionDefinition', text: '}', subtree_size: 27},
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// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
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// CHECK:STDOUT: ]
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