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| //===- string.go - Stringer implementation for Type -----------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements the Stringer interface for the Type type.
//
//===----------------------------------------------------------------------===//
package llvm
import "fmt"
func (t TypeKind) String() string {
switch t {
case VoidTypeKind:
return "VoidTypeKind"
case FloatTypeKind:
return "FloatTypeKind"
case DoubleTypeKind:
return "DoubleTypeKind"
case X86_FP80TypeKind:
return "X86_FP80TypeKind"
case FP128TypeKind:
return "FP128TypeKind"
case PPC_FP128TypeKind:
return "PPC_FP128TypeKind"
case LabelTypeKind:
return "LabelTypeKind"
case IntegerTypeKind:
return "IntegerTypeKind"
case FunctionTypeKind:
return "FunctionTypeKind"
case StructTypeKind:
return "StructTypeKind"
case ArrayTypeKind:
return "ArrayTypeKind"
case PointerTypeKind:
return "PointerTypeKind"
case VectorTypeKind:
return "VectorTypeKind"
case MetadataTypeKind:
return "MetadataTypeKind"
}
panic("unreachable")
}
func (t Type) String() string {
ts := typeStringer{s: make(map[Type]string)}
return ts.typeString(t)
}
type typeStringer struct {
s map[Type]string
}
func (ts *typeStringer) typeString(t Type) string {
if s, ok := ts.s[t]; ok {
return s
}
k := t.TypeKind()
s := k.String()
s = s[:len(s)-len("Kind")]
switch k {
case ArrayTypeKind:
s += fmt.Sprintf("(%v[%v])", ts.typeString(t.ElementType()), t.ArrayLength())
case PointerTypeKind:
s += fmt.Sprintf("(%v)", ts.typeString(t.ElementType()))
case FunctionTypeKind:
params := t.ParamTypes()
s += "("
if len(params) > 0 {
s += fmt.Sprintf("%v", ts.typeString(params[0]))
for i := 1; i < len(params); i++ {
s += fmt.Sprintf(", %v", ts.typeString(params[i]))
}
}
s += fmt.Sprintf("):%v", ts.typeString(t.ReturnType()))
case StructTypeKind:
if name := t.StructName(); name != "" {
ts.s[t] = "%" + name
s = fmt.Sprintf("%%%s: %s", name, s)
}
etypes := t.StructElementTypes()
s += "("
if n := len(etypes); n > 0 {
s += ts.typeString(etypes[0])
for i := 1; i < n; i++ {
s += fmt.Sprintf(", %v", ts.typeString(etypes[i]))
}
}
s += ")"
case IntegerTypeKind:
s += fmt.Sprintf("(%d bits)", t.IntTypeWidth())
}
ts.s[t] = s
return s
}
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