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#pragma once
#include "eval.hh"
#define LocalNoInline(f) static f __attribute__((noinline)); f
#define LocalNoInlineNoReturn(f) static f __attribute__((noinline, noreturn)); f
namespace nix {
LocalNoInlineNoReturn(void throwEvalError(const char * s))
{
throw EvalError(s);
}
LocalNoInlineNoReturn(void throwTypeError(const char * s, const string & s2))
{
throw TypeError(format(s) % s2);
}
void EvalState::forceValue(Value & v)
{
if (v.type == tThunk) {
Env * env = v.thunk.env;
Expr * expr = v.thunk.expr;
try {
v.type = tBlackhole;
//checkInterrupt();
expr->eval(*this, *env, v);
} catch (Error & e) {
v.type = tThunk;
v.thunk.env = env;
v.thunk.expr = expr;
throw;
}
}
else if (v.type == tApp)
callFunction(*v.app.left, *v.app.right, v);
else if (v.type == tBlackhole)
throwEvalError("infinite recursion encountered");
}
inline void EvalState::forceAttrs(Value & v)
{
forceValue(v);
if (v.type != tAttrs)
throwTypeError("value is %1% while an attribute set was expected", showType(v));
}
inline void EvalState::forceList(Value & v)
{
forceValue(v);
if (v.type != tList)
throwTypeError("value is %1% while a list was expected", showType(v));
}
}
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