mirror of
https://github.com/fluencelabs/assemblyscript
synced 2025-04-25 15:12:12 +00:00
850 lines
26 KiB
TypeScript
850 lines
26 KiB
TypeScript
import {
|
|
Module,
|
|
NativeType,
|
|
ExpressionId,
|
|
UnaryOp,
|
|
BinaryOp,
|
|
HostOp,
|
|
FunctionRef,
|
|
ExpressionRef,
|
|
Index,
|
|
readString
|
|
} from "./module";
|
|
|
|
import {
|
|
I64
|
|
} from "./util/i64";
|
|
|
|
// TODO :-)
|
|
|
|
export class Decompiler {
|
|
|
|
static decompile(module: Module): string {
|
|
const decompiler: Decompiler = new Decompiler();
|
|
decompiler.decompile(module);
|
|
return decompiler.finish();
|
|
}
|
|
|
|
text: string[] = [];
|
|
functionId: i32 = 0;
|
|
|
|
private tempI64: I64 = new I64();
|
|
|
|
constructor() {
|
|
}
|
|
|
|
/** Decompiles a module to an AST that can then be serialized. */
|
|
decompile(module: Module) {
|
|
throw new Error("not implemented");
|
|
}
|
|
|
|
decompileFunction(func: FunctionRef): void {
|
|
const name: string = readString(_BinaryenFunctionGetName(func)) || "$" + this.functionId.toString(10);
|
|
const body: ExpressionRef = _BinaryenFunctionGetBody(func);
|
|
this.push("function ");
|
|
this.push(name);
|
|
this.push("(");
|
|
let k: Index = _BinaryenFunctionGetNumParams(func);
|
|
for (let i: Index = 0; i < k; ++i) {
|
|
if (i > 0)
|
|
this.push(", ");
|
|
this.push("$");
|
|
this.push(i.toString(10));
|
|
this.push(": ");
|
|
this.push(nativeTypeToType(_BinaryenFunctionGetParam(func, i)));
|
|
}
|
|
this.push("): ");
|
|
this.push(nativeTypeToType(_BinaryenFunctionGetResult(func)));
|
|
this.push(" ");
|
|
if (_BinaryenExpressionGetId(body) != ExpressionId.Block) {
|
|
this.push("{\n");
|
|
}
|
|
this.decompileExpression(body);
|
|
if (_BinaryenExpressionGetId(body) != ExpressionId.Block) {
|
|
this.push("\n}\n");
|
|
}
|
|
++this.functionId;
|
|
}
|
|
|
|
decompileExpression(expr: ExpressionRef): void {
|
|
const id: ExpressionId = _BinaryenExpressionGetId(expr);
|
|
const type: NativeType = _BinaryenExpressionGetType(expr);
|
|
|
|
let nested: ExpressionRef;
|
|
let string: string | null;
|
|
let i: Index, k: Index;
|
|
|
|
switch (id) {
|
|
|
|
case ExpressionId.Block: // TODO: magic
|
|
if ((string = readString(_BinaryenBlockGetName(expr))) != null) {
|
|
this.push(string);
|
|
this.push(": ");
|
|
}
|
|
this.push("{\n");
|
|
k = _BinaryenBlockGetNumChildren(expr);
|
|
for (i = 0; i < k; ++i) {
|
|
this.decompileExpression(_BinaryenBlockGetChild(expr, i));
|
|
}
|
|
this.push("}\n");
|
|
return;
|
|
|
|
case ExpressionId.If:
|
|
if (type == NativeType.None) {
|
|
this.push("if (");
|
|
this.decompileExpression(_BinaryenIfGetCondition(expr));
|
|
this.push(") ");
|
|
this.decompileExpression(_BinaryenIfGetIfTrue(expr));
|
|
if (nested = _BinaryenIfGetIfFalse(expr)) {
|
|
this.push(" else ");
|
|
this.decompileExpression(nested);
|
|
}
|
|
} else {
|
|
this.decompileExpression(_BinaryenIfGetCondition(expr));
|
|
this.push(" ? ");
|
|
this.decompileExpression(_BinaryenIfGetIfTrue(expr));
|
|
this.push(" : ");
|
|
this.decompileExpression(_BinaryenIfGetIfFalse(expr));
|
|
}
|
|
return;
|
|
|
|
case ExpressionId.Loop:
|
|
if ((string = readString(_BinaryenLoopGetName(expr))) != null) {
|
|
this.push(string);
|
|
this.push(": ");
|
|
}
|
|
this.push("do ");
|
|
this.decompileExpression(_BinaryenLoopGetBody(expr));
|
|
this.push("while (0);\n");
|
|
|
|
case ExpressionId.Break:
|
|
if (nested = _BinaryenBreakGetCondition(expr)) {
|
|
this.push("if (");
|
|
this.decompileExpression(nested);
|
|
this.push(") ");
|
|
}
|
|
if ((string = readString(_BinaryenBreakGetName(expr))) != null) {
|
|
this.push("break ");
|
|
this.push(string);
|
|
this.push(";\n");
|
|
} else
|
|
this.push("break;\n");
|
|
return;
|
|
|
|
case ExpressionId.Switch:
|
|
|
|
case ExpressionId.Call:
|
|
|
|
case ExpressionId.CallImport:
|
|
|
|
case ExpressionId.CallIndirect:
|
|
|
|
case ExpressionId.GetLocal:
|
|
this.push("$");
|
|
this.push(_BinaryenGetLocalGetIndex(expr).toString(10));
|
|
return;
|
|
|
|
case ExpressionId.SetLocal:
|
|
this.push("$");
|
|
this.push(_BinaryenSetLocalGetIndex(expr).toString(10));
|
|
this.push(" = ");
|
|
this.decompileExpression(_BinaryenSetLocalGetValue(expr));
|
|
return;
|
|
|
|
case ExpressionId.GetGlobal:
|
|
|
|
case ExpressionId.SetGlobal:
|
|
|
|
case ExpressionId.Load:
|
|
this.push("load<");
|
|
this.push(nativeTypeToType(type));
|
|
this.push(">(");
|
|
this.push(_BinaryenLoadGetOffset(expr).toString(10));
|
|
this.push(" + ");
|
|
this.decompileExpression(_BinaryenLoadGetPtr(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case ExpressionId.Store:
|
|
this.push("store<");
|
|
this.push(nativeTypeToType(type));
|
|
this.push(">(");
|
|
this.push(_BinaryenStoreGetOffset(expr).toString(10));
|
|
this.push(" + ");
|
|
this.decompileExpression(_BinaryenStoreGetPtr(expr));
|
|
this.push(", ");
|
|
this.decompileExpression(_BinaryenStoreGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case ExpressionId.Const:
|
|
switch (type) {
|
|
|
|
case NativeType.I32:
|
|
this.push(_BinaryenConstGetValueI32(expr).toString(10));
|
|
return;
|
|
|
|
case NativeType.I64:
|
|
this.tempI64.lo = _BinaryenConstGetValueI64Low(expr);
|
|
this.tempI64.hi = _BinaryenConstGetValueI64High(expr);
|
|
this.push(this.tempI64.toString());
|
|
return;
|
|
|
|
case NativeType.F32:
|
|
this.push(_BinaryenConstGetValueF32(expr).toString(10));
|
|
return;
|
|
|
|
case NativeType.F64:
|
|
this.push(_BinaryenConstGetValueF64(expr).toString(10));
|
|
return;
|
|
}
|
|
break;
|
|
|
|
case ExpressionId.Unary:
|
|
switch (_BinaryenUnaryGetOp(expr)) {
|
|
|
|
case UnaryOp.ClzI32:
|
|
this.push("clz<i32>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.CtzI32:
|
|
this.push("ctz<i32>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.PopcntI32:
|
|
this.push("popcnt<i32>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.NegF32:
|
|
case UnaryOp.NegF64:
|
|
this.push("-");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.AbsF32:
|
|
this.push("abs<f32>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.CeilF32:
|
|
this.push("ceil<f32>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.FloorF32:
|
|
this.push("floor<f32>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.TruncF32:
|
|
this.push("trunc<f32>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.NearestF32:
|
|
this.push("nearest<i32>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.SqrtF32:
|
|
this.push("sqrt<f32>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.EqzI32:
|
|
case UnaryOp.EqzI64:
|
|
this.push("!");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.ClzI64:
|
|
this.push("clz<i64>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.CtzI64:
|
|
this.push("ctz<i64>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.PopcntI64:
|
|
this.push("popcnt<i64>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.AbsF64:
|
|
this.push("abs<f64>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.CeilF64:
|
|
this.push("ceil<f64>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.FloorF64:
|
|
this.push("floor<f64>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.TruncF64:
|
|
this.push("trunc<f64>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.NearestF64:
|
|
this.push("nearest<f64>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.SqrtF64:
|
|
this.push("sqrt<f64>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.ExtendI32:
|
|
this.push("<i64>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.ExtendU32:
|
|
this.push("<i64><u64>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.WrapI64:
|
|
this.push("<i32>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.TruncF32ToI32:
|
|
this.push("<i32>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.TruncF32ToI64:
|
|
this.push("<i64>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.TruncF32ToU32:
|
|
this.push("<i32><u32>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.TruncF32ToU64:
|
|
this.push("<i64><u64>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.TruncF64ToI32:
|
|
this.push("<i32>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.TruncF64ToI64:
|
|
this.push("<i64>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.TruncF64ToU32:
|
|
this.push("<i32><u32>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.TruncF64ToU64:
|
|
this.push("<i64><u64>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.ReinterpretF32:
|
|
this.push("reinterpret<f32,i32>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.ReinterpretF64:
|
|
this.push("reinterpret<f64,i64>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.ConvertI32ToF32:
|
|
this.push("<f32>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.ConvertI32ToF64:
|
|
this.push("<f64>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.ConvertU32ToF32:
|
|
this.push("<f32><u32>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.ConvertU32ToF64:
|
|
this.push("<f64><u32>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.ConvertI64ToF32:
|
|
this.push("<f32>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.ConvertI64ToF64:
|
|
this.push("<f64>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.ConvertU64ToF32:
|
|
this.push("<f32><u64>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.ConvertU64ToF64:
|
|
this.push("<f64><u64>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.PromoteF32:
|
|
this.push("<f64>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.DemoteF64:
|
|
this.push("<f32>");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
return;
|
|
|
|
case UnaryOp.ReinterpretI32:
|
|
this.push("reinterpret<i32,f32>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case UnaryOp.ReinterpretI64:
|
|
this.push("reinterpret<i64,f64>(");
|
|
this.decompileExpression(_BinaryenUnaryGetValue(expr));
|
|
this.push(")");
|
|
return;
|
|
}
|
|
break;
|
|
|
|
case ExpressionId.Binary: // TODO: precedence
|
|
switch (_BinaryenBinaryGetOp(expr)) {
|
|
|
|
case BinaryOp.AddI32:
|
|
case BinaryOp.AddI64:
|
|
case BinaryOp.AddF32:
|
|
case BinaryOp.AddF64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" + ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.SubI32:
|
|
case BinaryOp.SubI64:
|
|
case BinaryOp.SubF32:
|
|
case BinaryOp.SubF64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" - ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.MulI32:
|
|
case BinaryOp.MulI64:
|
|
case BinaryOp.MulF32:
|
|
case BinaryOp.MulF64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" * ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.DivI32:
|
|
case BinaryOp.DivI64:
|
|
case BinaryOp.DivF32:
|
|
case BinaryOp.DivF64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" / ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.DivU32:
|
|
this.push("<i32>(<u32>");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" / <u32>");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case BinaryOp.RemI32:
|
|
case BinaryOp.RemI64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" % ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.RemU32:
|
|
this.push("<i32>(<u32>");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" / <u32>");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case BinaryOp.AndI32:
|
|
case BinaryOp.AndI64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" & ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.OrI32:
|
|
case BinaryOp.OrI64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" | ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.XorI32:
|
|
case BinaryOp.XorI64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" ^ ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.ShlI32:
|
|
case BinaryOp.ShlI64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" << ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.ShrU32:
|
|
case BinaryOp.ShrU64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" >>> ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.ShrI32:
|
|
case BinaryOp.ShrI64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" >> ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.RotlI32:
|
|
this.push("rotl<i32>(");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(", ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case BinaryOp.RotrI32:
|
|
this.push("rotr<i32>(");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(", ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case BinaryOp.EqI32:
|
|
case BinaryOp.EqI64:
|
|
case BinaryOp.EqF32:
|
|
case BinaryOp.EqF64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" == ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.NeI32:
|
|
case BinaryOp.NeI64:
|
|
case BinaryOp.NeF32:
|
|
case BinaryOp.NeF64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" != ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.LtI32:
|
|
case BinaryOp.LtI64:
|
|
case BinaryOp.LtF32:
|
|
case BinaryOp.LtF64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" < ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.LtU32:
|
|
this.push("<u32>");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" < <u32>");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.LeI32:
|
|
case BinaryOp.LeI64:
|
|
case BinaryOp.LeF32:
|
|
case BinaryOp.LeF64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" <= ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.LeU32:
|
|
this.push("<u32>");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" <= <u32>");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.GtI32:
|
|
case BinaryOp.GtI64:
|
|
case BinaryOp.GtF32:
|
|
case BinaryOp.GtF64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" > ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.GtU32:
|
|
this.push("<u32>");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" > <u32>");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.GeI32:
|
|
case BinaryOp.GeI64:
|
|
case BinaryOp.GeF32:
|
|
case BinaryOp.GeF64:
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" >= ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.GeU32:
|
|
this.push("<u32>");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" >= <u32>");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.DivU64:
|
|
this.push("<u64>");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" / <u64>");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.RemU64:
|
|
this.push("<u64>");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" % <u64>");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.RotlI64:
|
|
this.push("rotl<i64>(");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(", ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case BinaryOp.RotrI64:
|
|
this.push("rotr<i64>(");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(", ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case BinaryOp.LtU64:
|
|
this.push("<u64>");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" < <u64>");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.LeU64:
|
|
this.push("<u64>");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" <= <u64>");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.GtU64:
|
|
this.push("<u64>");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" > <u64>");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.GeU64:
|
|
this.push("<u64>");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(" >= <u64>");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
return;
|
|
|
|
case BinaryOp.CopysignF32:
|
|
this.push("copysign<f32>(");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(", ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case BinaryOp.MinF32:
|
|
this.push("min<f32>(");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(", ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case BinaryOp.MaxF32:
|
|
this.push("max<f32>(");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(", ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case BinaryOp.CopysignF64:
|
|
this.push("copysign<f64>(");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(", ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case BinaryOp.MinF64:
|
|
this.push("min<f64>(");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(", ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case BinaryOp.MaxF64:
|
|
this.push("max<f64>(");
|
|
this.decompileExpression(_BinaryenBinaryGetLeft(expr));
|
|
this.push(", ");
|
|
this.decompileExpression(_BinaryenBinaryGetRight(expr));
|
|
this.push(")");
|
|
return;
|
|
}
|
|
return;
|
|
|
|
case ExpressionId.Select:
|
|
this.push("select<");
|
|
this.push(nativeTypeToType(type));
|
|
this.push(">(");
|
|
this.decompileExpression(_BinaryenSelectGetIfTrue(expr));
|
|
this.push(", ");
|
|
this.decompileExpression(_BinaryenSelectGetIfFalse(expr));
|
|
this.push(", ");
|
|
this.decompileExpression(_BinaryenSelectGetCondition(expr));
|
|
this.push(")");
|
|
return;
|
|
|
|
case ExpressionId.Drop:
|
|
this.decompileExpression(_BinaryenDropGetValue(expr));
|
|
this.push(";\n");
|
|
return;
|
|
|
|
case ExpressionId.Return:
|
|
if (nested = _BinaryenReturnGetValue(expr)) {
|
|
this.push("return ");
|
|
this.decompileExpression(nested);
|
|
this.push(";\n");
|
|
} else {
|
|
this.push("return;\n");
|
|
}
|
|
return;
|
|
|
|
case ExpressionId.Host:
|
|
switch (_BinaryenHostGetOp(expr)) {
|
|
case HostOp.CurrentMemory:
|
|
this.push("current_memory()");
|
|
return;
|
|
case HostOp.GrowMemory:
|
|
this.push("grow_memory(");
|
|
this.decompileExpression(_BinaryenHostGetOperand(expr, 0));
|
|
this.push(")");
|
|
return;
|
|
}
|
|
break;
|
|
|
|
case ExpressionId.Nop:
|
|
this.push(";\n");
|
|
return;
|
|
|
|
case ExpressionId.Unreachable:
|
|
this.push("unreachable()");
|
|
return;
|
|
|
|
case ExpressionId.AtomicCmpxchg:
|
|
|
|
case ExpressionId.AtomicRMW:
|
|
|
|
case ExpressionId.AtomicWait:
|
|
|
|
case ExpressionId.AtomicWake:
|
|
}
|
|
throw new Error("not implemented");
|
|
}
|
|
|
|
private push(text: string): void {
|
|
// mostly here so we can add debugging if necessary
|
|
this.text.push(text);
|
|
}
|
|
|
|
finish(): string {
|
|
const ret: string = this.text.join("");
|
|
this.text = [];
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
function nativeTypeToType(type: NativeType): string {
|
|
switch (type) {
|
|
case NativeType.None: return "void";
|
|
case NativeType.I32: return "i32";
|
|
case NativeType.I64: return "i64";
|
|
case NativeType.F32: return "f32";
|
|
case NativeType.F64: return "f64";
|
|
case NativeType.Unreachable: throw new Error("unreachable type");
|
|
case NativeType.Auto: throw new Error("auto type");
|
|
default: throw new Error("unexpected type");
|
|
}
|
|
}
|