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gotosocial/vendor/modernc.org/cc/v3/inspect.go

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Add SQLite support, fix un-thread-safe DB caches, small performance f… (#172) * Add SQLite support, fix un-thread-safe DB caches, small performance fixes Signed-off-by: kim (grufwub) <grufwub@gmail.com> * add SQLite licenses to README Signed-off-by: kim (grufwub) <grufwub@gmail.com> * appease the linter, and fix my dumbass-ery Signed-off-by: kim (grufwub) <grufwub@gmail.com> * make requested changes Signed-off-by: kim (grufwub) <grufwub@gmail.com> * add back comment Signed-off-by: kim (grufwub) <grufwub@gmail.com>
2021-08-29 14:41:41 +00:00
// Copyright 2020 The CC Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cc // import "modernc.org/cc/v3"
// Inspect inspects AST node trees.
//
// If n is a non-terminal node, f(n, true) is called first. Next, f is called
// recursively for each of n's non-nil non-terminal children nodes, if any, in
// alphabetical order. Next, all n's terminal nodes, if any, are visited in
// the numeric order of their suffixes (Token, Token2, Token3, ...). Finally,
// f(n, false) is invoked.
//
// If n a terminal node, of type *Token, f(n, <unspecified boolean value> is
// called once.
//
// Inspect stops when any invocation of f returns false.
func Inspect(n Node, f func(Node, bool) bool) {
see(n, f)
}
func see(n Node, f func(Node, bool) bool) bool {
switch x := n.(type) {
case *AbstractDeclarator:
return x == nil || f(x, true) &&
see(x.DirectAbstractDeclarator, f) &&
see(x.Pointer, f) &&
f(x, false)
case *AdditiveExpression:
return x == nil || f(x, true) &&
see(x.AdditiveExpression, f) &&
see(x.MultiplicativeExpression, f) &&
see(&x.Token, f) &&
f(x, false)
case *AlignmentSpecifier:
return x == nil || f(x, true) &&
see(x.ConstantExpression, f) &&
see(x.TypeName, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
f(x, false)
case *AndExpression:
return x == nil || f(x, true) &&
see(x.AndExpression, f) &&
see(x.EqualityExpression, f) &&
see(&x.Token, f) &&
f(x, false)
case *ArgumentExpressionList:
return x == nil || f(x, true) &&
see(x.ArgumentExpressionList, f) &&
see(x.AssignmentExpression, f) &&
see(&x.Token, f) &&
f(x, false)
case *Asm:
return x == nil || f(x, true) &&
see(x.AsmArgList, f) &&
see(x.AsmQualifierList, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
see(&x.Token4, f) &&
f(x, false)
case *AsmArgList:
return x == nil || f(x, true) &&
see(x.AsmArgList, f) &&
see(x.AsmExpressionList, f) &&
see(&x.Token, f) &&
f(x, false)
case *AsmExpressionList:
return x == nil || f(x, true) &&
see(x.AsmExpressionList, f) &&
see(x.AsmIndex, f) &&
see(x.AssignmentExpression, f) &&
see(&x.Token, f) &&
f(x, false)
case *AsmFunctionDefinition:
return x == nil || f(x, true) &&
see(x.AsmStatement, f) &&
see(x.DeclarationSpecifiers, f) &&
see(x.Declarator, f) &&
f(x, false)
case *AsmIndex:
return x == nil || f(x, true) &&
see(x.Expression, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
f(x, false)
case *AsmQualifier:
return x == nil || f(x, true) &&
see(&x.Token, f) &&
f(x, false)
case *AsmQualifierList:
return x == nil || f(x, true) &&
see(x.AsmQualifier, f) &&
see(x.AsmQualifierList, f) &&
f(x, false)
case *AsmStatement:
return x == nil || f(x, true) &&
see(x.Asm, f) &&
see(x.AttributeSpecifierList, f) &&
see(&x.Token, f) &&
f(x, false)
case *AssignmentExpression:
return x == nil || f(x, true) &&
see(x.AssignmentExpression, f) &&
see(x.ConditionalExpression, f) &&
see(x.UnaryExpression, f) &&
see(&x.Token, f) &&
f(x, false)
case *AtomicTypeSpecifier:
return x == nil || f(x, true) &&
see(x.TypeName, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
f(x, false)
case *AttributeSpecifier:
return x == nil || f(x, true) &&
see(x.AttributeValueList, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
see(&x.Token4, f) &&
see(&x.Token5, f) &&
f(x, false)
case *AttributeSpecifierList:
return x == nil || f(x, true) &&
see(x.AttributeSpecifier, f) &&
see(x.AttributeSpecifierList, f) &&
f(x, false)
case *AttributeValue:
return x == nil || f(x, true) &&
see(x.ExpressionList, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
f(x, false)
case *AttributeValueList:
return x == nil || f(x, true) &&
see(x.AttributeValue, f) &&
see(x.AttributeValueList, f) &&
see(&x.Token, f) &&
f(x, false)
case *BlockItem:
return x == nil || f(x, true) &&
see(x.CompoundStatement, f) &&
see(x.Declaration, f) &&
see(x.DeclarationSpecifiers, f) &&
see(x.Declarator, f) &&
see(x.LabelDeclaration, f) &&
see(x.PragmaSTDC, f) &&
see(x.Statement, f) &&
f(x, false)
case *BlockItemList:
return x == nil || f(x, true) &&
see(x.BlockItem, f) &&
see(x.BlockItemList, f) &&
f(x, false)
case *CastExpression:
return x == nil || f(x, true) &&
see(x.CastExpression, f) &&
see(x.TypeName, f) &&
see(x.UnaryExpression, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
f(x, false)
case *CompoundStatement:
return x == nil || f(x, true) &&
see(x.BlockItemList, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
f(x, false)
case *ConditionalExpression:
return x == nil || f(x, true) &&
see(x.ConditionalExpression, f) &&
see(x.Expression, f) &&
see(x.LogicalOrExpression, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
f(x, false)
case *ConstantExpression:
return x == nil || f(x, true) &&
see(x.ConditionalExpression, f) &&
f(x, false)
case *Declaration:
return x == nil || f(x, true) &&
see(x.DeclarationSpecifiers, f) &&
see(x.InitDeclaratorList, f) &&
see(&x.Token, f) &&
f(x, false)
case *DeclarationList:
return x == nil || f(x, true) &&
see(x.Declaration, f) &&
see(x.DeclarationList, f) &&
f(x, false)
case *DeclarationSpecifiers:
return x == nil || f(x, true) &&
see(x.AlignmentSpecifier, f) &&
see(x.AttributeSpecifier, f) &&
see(x.DeclarationSpecifiers, f) &&
see(x.FunctionSpecifier, f) &&
see(x.StorageClassSpecifier, f) &&
see(x.TypeQualifier, f) &&
see(x.TypeSpecifier, f) &&
f(x, false)
case *Declarator:
return x == nil || f(x, true) &&
see(x.AttributeSpecifierList, f) &&
see(x.DirectDeclarator, f) &&
see(x.Pointer, f) &&
f(x, false)
case *Designation:
return x == nil || f(x, true) &&
see(x.DesignatorList, f) &&
see(&x.Token, f) &&
f(x, false)
case *Designator:
return x == nil || f(x, true) &&
see(x.ConstantExpression, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
f(x, false)
case *DesignatorList:
return x == nil || f(x, true) &&
see(x.Designator, f) &&
see(x.DesignatorList, f) &&
f(x, false)
case *DirectAbstractDeclarator:
return x == nil || f(x, true) &&
see(x.AbstractDeclarator, f) &&
see(x.AssignmentExpression, f) &&
see(x.DirectAbstractDeclarator, f) &&
see(x.ParameterTypeList, f) &&
see(x.TypeQualifiers, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
f(x, false)
case *DirectDeclarator:
return x == nil || f(x, true) &&
see(x.Asm, f) &&
see(x.AssignmentExpression, f) &&
see(x.AttributeSpecifierList, f) &&
see(x.Declarator, f) &&
see(x.DirectDeclarator, f) &&
see(x.IdentifierList, f) &&
see(x.ParameterTypeList, f) &&
see(x.TypeQualifiers, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
f(x, false)
case *EnumSpecifier:
return x == nil || f(x, true) &&
see(x.AttributeSpecifierList, f) &&
see(x.EnumeratorList, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
see(&x.Token4, f) &&
see(&x.Token5, f) &&
f(x, false)
case *Enumerator:
return x == nil || f(x, true) &&
see(x.AttributeSpecifierList, f) &&
see(x.ConstantExpression, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
f(x, false)
case *EnumeratorList:
return x == nil || f(x, true) &&
see(x.Enumerator, f) &&
see(x.EnumeratorList, f) &&
see(&x.Token, f) &&
f(x, false)
case *EqualityExpression:
return x == nil || f(x, true) &&
see(x.EqualityExpression, f) &&
see(x.RelationalExpression, f) &&
see(&x.Token, f) &&
f(x, false)
case *ExclusiveOrExpression:
return x == nil || f(x, true) &&
see(x.AndExpression, f) &&
see(x.ExclusiveOrExpression, f) &&
see(&x.Token, f) &&
f(x, false)
case *Expression:
return x == nil || f(x, true) &&
see(x.AssignmentExpression, f) &&
see(x.Expression, f) &&
see(&x.Token, f) &&
f(x, false)
case *ExpressionList:
return x == nil || f(x, true) &&
see(x.AssignmentExpression, f) &&
see(x.ExpressionList, f) &&
see(&x.Token, f) &&
f(x, false)
case *ExpressionStatement:
return x == nil || f(x, true) &&
see(x.AttributeSpecifierList, f) &&
see(x.Expression, f) &&
see(&x.Token, f) &&
f(x, false)
case *ExternalDeclaration:
return x == nil || f(x, true) &&
see(x.AsmFunctionDefinition, f) &&
see(x.AsmStatement, f) &&
see(x.Declaration, f) &&
see(x.FunctionDefinition, f) &&
see(x.PragmaSTDC, f) &&
see(&x.Token, f) &&
f(x, false)
case *FunctionDefinition:
return x == nil || f(x, true) &&
see(x.CompoundStatement, f) &&
see(x.DeclarationList, f) &&
see(x.DeclarationSpecifiers, f) &&
see(x.Declarator, f) &&
f(x, false)
case *FunctionSpecifier:
return x == nil || f(x, true) &&
see(&x.Token, f) &&
f(x, false)
case *IdentifierList:
return x == nil || f(x, true) &&
see(x.IdentifierList, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
f(x, false)
case *InclusiveOrExpression:
return x == nil || f(x, true) &&
see(x.ExclusiveOrExpression, f) &&
see(x.InclusiveOrExpression, f) &&
see(&x.Token, f) &&
f(x, false)
case *InitDeclarator:
return x == nil || f(x, true) &&
see(x.AttributeSpecifierList, f) &&
see(x.Declarator, f) &&
see(x.Initializer, f) &&
see(&x.Token, f) &&
f(x, false)
case *InitDeclaratorList:
return x == nil || f(x, true) &&
see(x.AttributeSpecifierList, f) &&
see(x.InitDeclarator, f) &&
see(x.InitDeclaratorList, f) &&
see(&x.Token, f) &&
f(x, false)
case *Initializer:
return x == nil || f(x, true) &&
see(x.AssignmentExpression, f) &&
see(x.InitializerList, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
f(x, false)
case *InitializerList:
return x == nil || f(x, true) &&
see(x.Designation, f) &&
see(x.Initializer, f) &&
see(x.InitializerList, f) &&
see(&x.Token, f) &&
f(x, false)
case *IterationStatement:
return x == nil || f(x, true) &&
see(x.Declaration, f) &&
see(x.Expression, f) &&
see(x.Expression2, f) &&
see(x.Expression3, f) &&
see(x.Statement, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
see(&x.Token4, f) &&
see(&x.Token5, f) &&
f(x, false)
case *JumpStatement:
return x == nil || f(x, true) &&
see(x.Expression, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
f(x, false)
case *LabelDeclaration:
return x == nil || f(x, true) &&
see(x.IdentifierList, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
f(x, false)
case *LabeledStatement:
return x == nil || f(x, true) &&
see(x.AttributeSpecifierList, f) &&
see(x.ConstantExpression, f) &&
see(x.ConstantExpression2, f) &&
see(x.Statement, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
f(x, false)
case *LogicalAndExpression:
return x == nil || f(x, true) &&
see(x.InclusiveOrExpression, f) &&
see(x.LogicalAndExpression, f) &&
see(&x.Token, f) &&
f(x, false)
case *LogicalOrExpression:
return x == nil || f(x, true) &&
see(x.LogicalAndExpression, f) &&
see(x.LogicalOrExpression, f) &&
see(&x.Token, f) &&
f(x, false)
case *MultiplicativeExpression:
return x == nil || f(x, true) &&
see(x.CastExpression, f) &&
see(x.MultiplicativeExpression, f) &&
see(&x.Token, f) &&
f(x, false)
case *ParameterDeclaration:
return x == nil || f(x, true) &&
see(x.AbstractDeclarator, f) &&
see(x.AttributeSpecifierList, f) &&
see(x.DeclarationSpecifiers, f) &&
see(x.Declarator, f) &&
f(x, false)
case *ParameterList:
return x == nil || f(x, true) &&
see(x.ParameterDeclaration, f) &&
see(x.ParameterList, f) &&
see(&x.Token, f) &&
f(x, false)
case *ParameterTypeList:
return x == nil || f(x, true) &&
see(x.ParameterList, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
f(x, false)
case *Pointer:
return x == nil || f(x, true) &&
see(x.Pointer, f) &&
see(x.TypeQualifiers, f) &&
see(&x.Token, f) &&
f(x, false)
case *PostfixExpression:
return x == nil || f(x, true) &&
see(x.ArgumentExpressionList, f) &&
see(x.Expression, f) &&
see(x.InitializerList, f) &&
see(x.PostfixExpression, f) &&
see(x.PrimaryExpression, f) &&
see(x.TypeName, f) &&
see(x.TypeName2, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
see(&x.Token4, f) &&
see(&x.Token5, f) &&
f(x, false)
case *PragmaSTDC:
return x == nil || f(x, true) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
see(&x.Token4, f) &&
f(x, false)
case *PrimaryExpression:
return x == nil || f(x, true) &&
see(x.CompoundStatement, f) &&
see(x.Expression, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
f(x, false)
case *RelationalExpression:
return x == nil || f(x, true) &&
see(x.RelationalExpression, f) &&
see(x.ShiftExpression, f) &&
see(&x.Token, f) &&
f(x, false)
case *SelectionStatement:
return x == nil || f(x, true) &&
see(x.Expression, f) &&
see(x.Statement, f) &&
see(x.Statement2, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
see(&x.Token4, f) &&
f(x, false)
case *ShiftExpression:
return x == nil || f(x, true) &&
see(x.AdditiveExpression, f) &&
see(x.ShiftExpression, f) &&
see(&x.Token, f) &&
f(x, false)
case *SpecifierQualifierList:
return x == nil || f(x, true) &&
see(x.AlignmentSpecifier, f) &&
see(x.AttributeSpecifier, f) &&
see(x.SpecifierQualifierList, f) &&
see(x.TypeQualifier, f) &&
see(x.TypeSpecifier, f) &&
f(x, false)
case *Statement:
return x == nil || f(x, true) &&
see(x.AsmStatement, f) &&
see(x.CompoundStatement, f) &&
see(x.ExpressionStatement, f) &&
see(x.IterationStatement, f) &&
see(x.JumpStatement, f) &&
see(x.LabeledStatement, f) &&
see(x.SelectionStatement, f) &&
f(x, false)
case *StorageClassSpecifier:
return x == nil || f(x, true) &&
see(&x.Token, f) &&
f(x, false)
case *StructDeclaration:
return x == nil || f(x, true) &&
see(x.SpecifierQualifierList, f) &&
see(x.StructDeclaratorList, f) &&
see(&x.Token, f) &&
f(x, false)
case *StructDeclarationList:
return x == nil || f(x, true) &&
see(x.StructDeclaration, f) &&
see(x.StructDeclarationList, f) &&
f(x, false)
case *StructDeclarator:
return x == nil || f(x, true) &&
see(x.AttributeSpecifierList, f) &&
see(x.ConstantExpression, f) &&
see(x.Declarator, f) &&
see(&x.Token, f) &&
f(x, false)
case *StructDeclaratorList:
return x == nil || f(x, true) &&
see(x.StructDeclarator, f) &&
see(x.StructDeclaratorList, f) &&
see(&x.Token, f) &&
f(x, false)
case *StructOrUnion:
return x == nil || f(x, true) &&
see(&x.Token, f) &&
f(x, false)
case *StructOrUnionSpecifier:
return x == nil || f(x, true) &&
see(x.AttributeSpecifierList, f) &&
see(x.StructDeclarationList, f) &&
see(x.StructOrUnion, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
f(x, false)
case *TranslationUnit:
return x == nil || f(x, true) &&
see(x.ExternalDeclaration, f) &&
see(x.TranslationUnit, f) &&
f(x, false)
case *TypeName:
return x == nil || f(x, true) &&
see(x.AbstractDeclarator, f) &&
see(x.SpecifierQualifierList, f) &&
f(x, false)
case *TypeQualifier:
return x == nil || f(x, true) &&
see(&x.Token, f) &&
f(x, false)
case *TypeQualifiers:
return x == nil || f(x, true) &&
see(x.AttributeSpecifier, f) &&
see(x.TypeQualifier, f) &&
see(x.TypeQualifiers, f) &&
f(x, false)
case *TypeSpecifier:
return x == nil || f(x, true) &&
see(x.AtomicTypeSpecifier, f) &&
see(x.EnumSpecifier, f) &&
see(x.Expression, f) &&
see(x.StructOrUnionSpecifier, f) &&
see(x.TypeName, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
f(x, false)
case *UnaryExpression:
return x == nil || f(x, true) &&
see(x.CastExpression, f) &&
see(x.PostfixExpression, f) &&
see(x.TypeName, f) &&
see(x.UnaryExpression, f) &&
see(&x.Token, f) &&
see(&x.Token2, f) &&
see(&x.Token2, f) &&
see(&x.Token3, f) &&
f(x, false)
case *Token:
return f(x, true)
default:
panic(todo("internal error: %T", x))
}
}
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