本文整理汇总了C++中FunctionDecoder类的典型用法代码示例。如果您正苦于以下问题：C++ FunctionDecoder类的具体用法？C++ FunctionDecoder怎么用？C++ FunctionDecoder使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了FunctionDecoder类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: DecodeConst
static bool
DecodeConst(FunctionDecoder& f, ExprType expected)
{
if (!f.d().readVarU32())
return f.fail("unable to read i32.const immediate");
return CheckType(f, ExprType::I32, expected);
}示例2: DecodeExpr
static bool
DecodeExpr(FunctionDecoder& f, ExprType expected)
{
Expr expr;
if (!f.d().readExpr(&expr))
return f.fail("unable to read expression");
switch (expr) {
case Expr::Nop:
return CheckType(f, ExprType::Void, expected);
case Expr::Call:
return DecodeCall(f, expected);
case Expr::CallImport:
return DecodeCallImport(f, expected);
case Expr::I32Const:
return DecodeConst(f, expected);
case Expr::GetLocal:
return DecodeGetLocal(f, expected);
case Expr::SetLocal:
return DecodeSetLocal(f, expected);
case Expr::Block:
return DecodeBlock(f, expected);
case Expr::I32Add:
case Expr::I32Sub:
case Expr::I32Mul:
case Expr::I32DivS:
case Expr::I32DivU:
case Expr::I32RemS:
case Expr::I32RemU:
case Expr::I32And:
case Expr::I32Or:
case Expr::I32Xor:
case Expr::I32Shl:
case Expr::I32ShrS:
case Expr::I32ShrU:
case Expr::F32Add:
case Expr::F32Sub:
case Expr::F32Mul:
case Expr::F32Div:
case Expr::F32Min:
case Expr::F32Max:
case Expr::F32CopySign:
case Expr::F64Add:
case Expr::F64Sub:
case Expr::F64Mul:
case Expr::F64Div:
case Expr::F64Min:
case Expr::F64Max:
case Expr::F64CopySign:
return DecodeBinaryOperator(f, expected);
default:
break;
}
return f.fail("bad expression code");
}示例3: DecodeConstI64
static bool
DecodeConstI64(FunctionDecoder& f, ExprType* type)
{
int64_t _;
if (!f.d().readVarS64(&_))
return f.fail("unable to read i64.const immediate");
*type = ExprType::I64;
return true;
}示例4: DecodeConstI32
static bool
DecodeConstI32(FunctionDecoder& f, ExprType* type)
{
int32_t _;
if (!f.d().readVarS32(&_))
return f.fail("unable to read i32.const immediate");
*type = ExprType::I32;
return true;
}示例5: DecodeLoadStoreAddress
static bool
DecodeLoadStoreAddress(FunctionDecoder &f)
{
uint32_t offset, align;
return DecodeExpr(f, ExprType::I32) &&
f.d().readVarU32(&offset) &&
f.d().readVarU32(&align) &&
mozilla::IsPowerOfTwo(align) &&
(offset == 0 || f.fail("NYI: address offsets")) &&
f.fail("NYI: wasm loads and stores");
}示例6: DecodeCallImport
static bool
DecodeCallImport(FunctionDecoder& f, ExprType* type)
{
uint32_t importIndex;
if (!f.d().readVarU32(&importIndex))
return f.fail("unable to read import index");
if (importIndex >= f.mg().numImports())
return f.fail("import index out of range");
return DecodeCallWithSig(f, *f.mg().import(importIndex).sig, type);
}示例7: DecodeCall
static bool
DecodeCall(FunctionDecoder& f, ExprType* type)
{
uint32_t funcIndex;
if (!f.d().readVarU32(&funcIndex))
return f.fail("unable to read import index");
if (funcIndex >= f.mg().numFuncSigs())
return f.fail("callee index out of range");
return DecodeCallWithSig(f, f.mg().funcSig(funcIndex), type);
}示例8: DecodeGetLocal
static bool
DecodeGetLocal(FunctionDecoder& f, ExprType expected)
{
uint32_t localIndex;
if (!f.d().readVarU32(&localIndex))
return f.fail("unable to read get_local index");
if (localIndex >= f.fg().locals().length())
return f.fail("get_local index out of range");
return CheckType(f, ToExprType(f.fg().locals()[localIndex]), expected);
}示例9: DecodeGetLocal
static bool
DecodeGetLocal(FunctionDecoder& f, ExprType* type)
{
uint32_t localIndex;
if (!f.d().readVarU32(&localIndex))
return f.fail("unable to read get_local index");
if (localIndex >= f.locals().length())
return f.fail("get_local index out of range");
*type = ToExprType(f.locals()[localIndex]);
return true;
}示例10: DecodeBlock
static bool
DecodeBlock(FunctionDecoder& f, bool isLoop, ExprType* type)
{
if (!f.pushBlock())
return f.fail("nesting overflow");
if (isLoop) {
if (!f.pushBlock())
return f.fail("nesting overflow");
}
uint32_t numExprs;
if (!f.d().readVarU32(&numExprs))
return f.fail("unable to read block's number of expressions");
ExprType exprType = ExprType::Void;
for (uint32_t i = 0; i < numExprs; i++) {
if (!DecodeExpr(f, &exprType))
return false;
}
if (isLoop)
f.popBlock();
ExprType branchType = f.popBlock();
*type = Unify(branchType, exprType);
return true;
}示例11: DecodeConstF64
static bool
DecodeConstF64(FunctionDecoder& f, ExprType expected)
{
double value;
if (!f.d().readFixedF64(&value))
return f.fail("unable to read f64.const immediate");
if (IsNaN(value)) {
const double jsNaN = JS::GenericNaN();
if (memcmp(&value, &jsNaN, sizeof(value)) != 0)
return f.fail("NYI: NaN literals with custom payloads");
}
return CheckType(f, ExprType::F64, expected);
}示例12: DecodeCallIndirect
static bool
DecodeCallIndirect(FunctionDecoder& f, ExprType expected)
{
uint32_t sigIndex;
if (!f.d().readVarU32(&sigIndex))
return f.fail("unable to read indirect call signature index");
if (sigIndex >= f.mg().numSigs())
return f.fail("signature index out of range");
if (!DecodeExpr(f, ExprType::I32))
return false;
return DecodeCallWithSig(f, f.mg().sig(sigIndex), expected);
}示例13: DecodeReturn
static bool
DecodeReturn(FunctionDecoder& f, ExprType* type)
{
if (f.sig().ret() != ExprType::Void) {
ExprType actual;
if (!DecodeExpr(f, &actual))
return false;
if (!CheckType(f, actual, f.sig().ret()))
return false;
}
*type = AnyType;
return true;
}示例14: DecodeConstF32
static bool
DecodeConstF32(FunctionDecoder& f, ExprType* type)
{
float value;
if (!f.d().readFixedF32(&value))
return f.fail("unable to read f32.const immediate");
if (IsNaN(value)) {
const float jsNaN = (float)JS::GenericNaN();
if (memcmp(&value, &jsNaN, sizeof(value)) != 0)
return f.fail("NYI: NaN literals with custom payloads");
}
*type = ExprType::F32;
return true;
}示例15: DecodeSetLocal
static bool
DecodeSetLocal(FunctionDecoder& f, ExprType expected)
{
uint32_t localIndex;
if (!f.d().readVarU32(&localIndex))
return f.fail("unable to read set_local index");
if (localIndex >= f.fg().locals().length())
return f.fail("set_local index out of range");
ExprType localType = ToExprType(f.fg().locals()[localIndex]);
if (!DecodeExpr(f, localType))
return false;
return CheckType(f, localType, expected);
}