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22590da2c9
This code is based on the existing LLVM Go bindings project hosted at: https://github.com/go-llvm/llvm Note that all contributors to the gollvm project have agreed to relicense their changes under the LLVM license and submit them to the LLVM project. Differential Revision: http://reviews.llvm.org/D5684 llvm-svn: 219976
106 lines
2.5 KiB
Go
106 lines
2.5 KiB
Go
//===- string.go - Stringer implementation for Type -----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the Stringer interface for the Type type.
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//
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//===----------------------------------------------------------------------===//
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package llvm
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import "fmt"
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func (t TypeKind) String() string {
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switch t {
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case VoidTypeKind:
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return "VoidTypeKind"
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case FloatTypeKind:
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return "FloatTypeKind"
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case DoubleTypeKind:
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return "DoubleTypeKind"
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case X86_FP80TypeKind:
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return "X86_FP80TypeKind"
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case FP128TypeKind:
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return "FP128TypeKind"
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case PPC_FP128TypeKind:
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return "PPC_FP128TypeKind"
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case LabelTypeKind:
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return "LabelTypeKind"
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case IntegerTypeKind:
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return "IntegerTypeKind"
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case FunctionTypeKind:
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return "FunctionTypeKind"
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case StructTypeKind:
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return "StructTypeKind"
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case ArrayTypeKind:
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return "ArrayTypeKind"
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case PointerTypeKind:
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return "PointerTypeKind"
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case VectorTypeKind:
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return "VectorTypeKind"
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case MetadataTypeKind:
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return "MetadataTypeKind"
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}
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panic("unreachable")
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}
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func (t Type) String() string {
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ts := typeStringer{s: make(map[Type]string)}
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return ts.typeString(t)
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}
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type typeStringer struct {
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s map[Type]string
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}
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func (ts *typeStringer) typeString(t Type) string {
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if s, ok := ts.s[t]; ok {
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return s
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}
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k := t.TypeKind()
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s := k.String()
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s = s[:len(s)-len("Kind")]
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switch k {
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case ArrayTypeKind:
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s += fmt.Sprintf("(%v[%v])", ts.typeString(t.ElementType()), t.ArrayLength())
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case PointerTypeKind:
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s += fmt.Sprintf("(%v)", ts.typeString(t.ElementType()))
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case FunctionTypeKind:
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params := t.ParamTypes()
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s += "("
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if len(params) > 0 {
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s += fmt.Sprintf("%v", ts.typeString(params[0]))
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for i := 1; i < len(params); i++ {
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s += fmt.Sprintf(", %v", ts.typeString(params[i]))
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}
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}
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s += fmt.Sprintf("):%v", ts.typeString(t.ReturnType()))
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case StructTypeKind:
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if name := t.StructName(); name != "" {
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ts.s[t] = "%" + name
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s = fmt.Sprintf("%%%s: %s", name, s)
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}
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etypes := t.StructElementTypes()
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s += "("
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if n := len(etypes); n > 0 {
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s += ts.typeString(etypes[0])
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for i := 1; i < n; i++ {
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s += fmt.Sprintf(", %v", ts.typeString(etypes[i]))
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}
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}
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s += ")"
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case IntegerTypeKind:
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s += fmt.Sprintf("(%d bits)", t.IntTypeWidth())
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}
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ts.s[t] = s
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return s
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}
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