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Make most calls to determinePos() lazy

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This commit is contained in:
Eelco Dolstra 2022-02-04 00:31:33 +01:00
parent 4c755c3b3f
commit bd383d1b6f
10 changed files with 46 additions and 24 deletions
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14
src/libexpr/eval.cc
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@ -219,7 +219,7 @@ string showType(const Value & v)
}
}
Pos Value::determinePos(const Pos &pos) const
Pos Value::determinePos(const Pos & pos) const
{
switch (internalType) {
case tAttrs: return *attrs->pos;
@ -754,6 +754,11 @@ LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, const
});
}
LocalNoInlineNoReturn(void throwTypeError(const char * s, const Value & v))
{
throw TypeError(s, showType(v));
}
LocalNoInlineNoReturn(void throwAssertionError(const Pos & pos, const char * s, const string & s1))
{
throw AssertionError({
@ -1138,7 +1143,7 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v)
Hence we need __overrides.) */
if (hasOverrides) {
Value * vOverrides = (*v.attrs)[overrides->second.displ].value;
state.forceAttrs(*vOverrides, vOverrides->determinePos(noPos));
state.forceAttrs(*vOverrides, [&]() { return vOverrides->determinePos(noPos); });
Bindings * newBnds = state.allocBindings(v.attrs->capacity() + vOverrides->attrs->size());
for (auto & i : *v.attrs)
newBnds->push_back(i);
@ -1500,7 +1505,8 @@ void EvalState::incrFunctionCall(ExprLambda * fun)
void EvalState::autoCallFunction(Bindings & args, Value & fun, Value & res)
{
Pos pos = fun.determinePos(noPos);
auto pos = fun.determinePos(noPos);
forceValue(fun, pos);
if (fun.type() == nAttrs) {
@ -1797,7 +1803,7 @@ void EvalState::forceValueDeep(Value & v)
recurse = [&](Value & v) {
if (!seen.insert(&v).second) return;
forceValue(v, v.determinePos(noPos));
forceValue(v, [&]() { return v.determinePos(noPos); });
if (v.type() == nAttrs) {
for (auto & i : *v.attrs)