bcce296ca3
This commit adds a new transform that converts reflect Implements() calls to runtime.interfaceImplements. At the moment, the Implements() method is not yet implemented (how ironic) but if the value passed to Implements is known at compile time the method call can be optimized to runtime.interfaceImplements to make it a regular interface assert. This commit is the last change necessary to add basic support for the encoding/json package. The json package is certainly not yet fully supported, but some trivial objects can be converted to JSON.
100 строки
5,9 КиБ
LLVM
100 строки
5,9 КиБ
LLVM
; ModuleID = 'interface.go'
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source_filename = "interface.go"
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target datalayout = "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-f80:32-n8:16:32-S128"
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target triple = "i686--linux"
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%runtime.typecodeID = type { %runtime.typecodeID*, i32, %runtime.interfaceMethodInfo* }
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%runtime.interfaceMethodInfo = type { i8*, i32 }
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%runtime._interface = type { i32, i8* }
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%runtime._string = type { i8*, i32 }
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@"reflect/types.type:basic:int" = linkonce_odr constant %runtime.typecodeID zeroinitializer
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@"reflect/types.type:pointer:basic:int" = linkonce_odr constant %runtime.typecodeID { %runtime.typecodeID* @"reflect/types.type:basic:int", i32 0, %runtime.interfaceMethodInfo* null }
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@"reflect/types.type:pointer:named:error" = linkonce_odr constant %runtime.typecodeID { %runtime.typecodeID* @"reflect/types.type:named:error", i32 0, %runtime.interfaceMethodInfo* null }
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@"reflect/types.type:named:error" = linkonce_odr constant %runtime.typecodeID { %runtime.typecodeID* @"reflect/types.type:interface:{Error:func:{}{basic:string}}", i32 0, %runtime.interfaceMethodInfo* null }
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@"reflect/types.type:interface:{Error:func:{}{basic:string}}" = linkonce_odr constant %runtime.typecodeID { %runtime.typecodeID* bitcast ([1 x i8*]* @"reflect/types.interface:interface{Error() string}$interface" to %runtime.typecodeID*), i32 0, %runtime.interfaceMethodInfo* null }
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@"func Error() string" = external constant i8
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@"reflect/types.interface:interface{Error() string}$interface" = linkonce_odr constant [1 x i8*] [i8* @"func Error() string"]
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@"reflect/types.type:pointer:interface:{String:func:{}{basic:string}}" = linkonce_odr constant %runtime.typecodeID { %runtime.typecodeID* @"reflect/types.type:interface:{String:func:{}{basic:string}}", i32 0, %runtime.interfaceMethodInfo* null }
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@"reflect/types.type:interface:{String:func:{}{basic:string}}" = linkonce_odr constant %runtime.typecodeID { %runtime.typecodeID* bitcast ([1 x i8*]* @"reflect/types.interface:interface{String() string}$interface" to %runtime.typecodeID*), i32 0, %runtime.interfaceMethodInfo* null }
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@"func String() string" = external constant i8
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@"reflect/types.interface:interface{String() string}$interface" = linkonce_odr constant [1 x i8*] [i8* @"func String() string"]
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@"reflect/types.type:basic:int$id" = external constant i8
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@"error$interface" = linkonce_odr constant [1 x i8*] [i8* @"func Error() string"]
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declare noalias nonnull i8* @runtime.alloc(i32, i8*, i8*)
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define hidden void @main.init(i8* %context, i8* %parentHandle) unnamed_addr {
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entry:
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ret void
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}
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define hidden %runtime._interface @main.simpleType(i8* %context, i8* %parentHandle) unnamed_addr {
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entry:
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ret %runtime._interface { i32 ptrtoint (%runtime.typecodeID* @"reflect/types.type:basic:int" to i32), i8* null }
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}
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define hidden %runtime._interface @main.pointerType(i8* %context, i8* %parentHandle) unnamed_addr {
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entry:
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ret %runtime._interface { i32 ptrtoint (%runtime.typecodeID* @"reflect/types.type:pointer:basic:int" to i32), i8* null }
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}
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define hidden %runtime._interface @main.interfaceType(i8* %context, i8* %parentHandle) unnamed_addr {
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entry:
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ret %runtime._interface { i32 ptrtoint (%runtime.typecodeID* @"reflect/types.type:pointer:named:error" to i32), i8* null }
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}
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define hidden %runtime._interface @main.anonymousInterfaceType(i8* %context, i8* %parentHandle) unnamed_addr {
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entry:
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ret %runtime._interface { i32 ptrtoint (%runtime.typecodeID* @"reflect/types.type:pointer:interface:{String:func:{}{basic:string}}" to i32), i8* null }
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}
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define hidden i1 @main.isInt(i32 %itf.typecode, i8* %itf.value, i8* %context, i8* %parentHandle) unnamed_addr {
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entry:
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%typecode = call i1 @runtime.typeAssert(i32 %itf.typecode, i8* nonnull @"reflect/types.type:basic:int$id", i8* undef, i8* null)
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br i1 %typecode, label %typeassert.ok, label %typeassert.next
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typeassert.ok: ; preds = %entry
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br label %typeassert.next
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typeassert.next: ; preds = %typeassert.ok, %entry
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ret i1 %typecode
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}
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declare i1 @runtime.typeAssert(i32, i8* dereferenceable_or_null(1), i8*, i8*)
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define hidden i1 @main.isError(i32 %itf.typecode, i8* %itf.value, i8* %context, i8* %parentHandle) unnamed_addr {
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entry:
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%0 = call i1 @runtime.interfaceImplements(i32 %itf.typecode, i8** getelementptr inbounds ([1 x i8*], [1 x i8*]* @"error$interface", i32 0, i32 0), i8* undef, i8* null)
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br i1 %0, label %typeassert.ok, label %typeassert.next
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typeassert.ok: ; preds = %entry
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br label %typeassert.next
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typeassert.next: ; preds = %typeassert.ok, %entry
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ret i1 %0
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}
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declare i1 @runtime.interfaceImplements(i32, i8** dereferenceable_or_null(4), i8*, i8*)
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define hidden i1 @main.isStringer(i32 %itf.typecode, i8* %itf.value, i8* %context, i8* %parentHandle) unnamed_addr {
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entry:
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%0 = call i1 @runtime.interfaceImplements(i32 %itf.typecode, i8** getelementptr inbounds ([1 x i8*], [1 x i8*]* @"reflect/types.interface:interface{String() string}$interface", i32 0, i32 0), i8* undef, i8* null)
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br i1 %0, label %typeassert.ok, label %typeassert.next
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typeassert.ok: ; preds = %entry
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br label %typeassert.next
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typeassert.next: ; preds = %typeassert.ok, %entry
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ret i1 %0
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}
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define hidden %runtime._string @main.callErrorMethod(i32 %itf.typecode, i8* %itf.value, i8* %context, i8* %parentHandle) unnamed_addr {
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entry:
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%invoke.func = call i32 @runtime.interfaceMethod(i32 %itf.typecode, i8** getelementptr inbounds ([1 x i8*], [1 x i8*]* @"error$interface", i32 0, i32 0), i8* nonnull @"func Error() string", i8* undef, i8* null)
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%invoke.func.cast = inttoptr i32 %invoke.func to %runtime._string (i8*, i8*, i8*)*
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%0 = call %runtime._string %invoke.func.cast(i8* %itf.value, i8* undef, i8* undef)
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ret %runtime._string %0
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}
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declare i32 @runtime.interfaceMethod(i32, i8** dereferenceable_or_null(4), i8* dereferenceable_or_null(1), i8*, i8*)
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