diff options
Diffstat (limited to 'src/libexpr/primops.cc')
| -rw-r--r-- | src/libexpr/primops.cc | 104 |
1 files changed, 53 insertions, 51 deletions
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc index 17ea8ee61953..bb1a854989e3 100644 --- a/src/libexpr/primops.cc +++ b/src/libexpr/primops.cc @@ -47,14 +47,14 @@ static void prim_import(EvalState & state, Value * * args, Value & v) #if 0 /* Determine whether the argument is the null value. */ -static Expr prim_isNull(EvalState & state, const ATermVector & args) +static void prim_isNull(EvalState & state, Value * * args, Value & v) { return makeBool(matchNull(evalExpr(state, args[0]))); } /* Determine whether the argument is a function. */ -static Expr prim_isFunction(EvalState & state, const ATermVector & args) +static void prim_isFunction(EvalState & state, Value * * args, Value & v) { Expr e = evalExpr(state, args[0]); Pattern pat; @@ -63,14 +63,14 @@ static Expr prim_isFunction(EvalState & state, const ATermVector & args) } /* Determine whether the argument is an Int. */ -static Expr prim_isInt(EvalState & state, const ATermVector & args) +static void prim_isInt(EvalState & state, Value * * args, Value & v) { int i; return makeBool(matchInt(evalExpr(state, args[0]), i)); } /* Determine whether the argument is an String. */ -static Expr prim_isString(EvalState & state, const ATermVector & args) +static void prim_isString(EvalState & state, Value * * args, Value & v) { string s; PathSet l; @@ -78,13 +78,13 @@ static Expr prim_isString(EvalState & state, const ATermVector & args) } /* Determine whether the argument is an Bool. */ -static Expr prim_isBool(EvalState & state, const ATermVector & args) +static void prim_isBool(EvalState & state, Value * * args, Value & v) { ATermBool b; return makeBool(matchBool(evalExpr(state, args[0]), b)); } -static Expr prim_genericClosure(EvalState & state, const ATermVector & args) +static void prim_genericClosure(EvalState & state, Value * * args, Value & v) { startNest(nest, lvlDebug, "finding dependencies"); @@ -132,7 +132,7 @@ static Expr prim_genericClosure(EvalState & state, const ATermVector & args) } -static Expr prim_abort(EvalState & state, const ATermVector & args) +static void prim_abort(EvalState & state, Value * * args, Value & v) { PathSet context; throw Abort(format("evaluation aborted with the following error message: `%1%'") % @@ -140,7 +140,7 @@ static Expr prim_abort(EvalState & state, const ATermVector & args) } -static Expr prim_throw(EvalState & state, const ATermVector & args) +static void prim_throw(EvalState & state, Value * * args, Value & v) { PathSet context; throw ThrownError(format("user-thrown exception: %1%") % @@ -148,7 +148,7 @@ static Expr prim_throw(EvalState & state, const ATermVector & args) } -static Expr prim_addErrorContext(EvalState & state, const ATermVector & args) +static void prim_addErrorContext(EvalState & state, Value * * args, Value & v) { PathSet context; try { @@ -162,7 +162,7 @@ static Expr prim_addErrorContext(EvalState & state, const ATermVector & args) /* Try evaluating the argument. Success => {success=true; value=something;}, * else => {success=false; value=false;} */ -static Expr prim_tryEval(EvalState & state, const ATermVector & args) +static void prim_tryEval(EvalState & state, Value * * args, Value & v) { ATermMap res = ATermMap(); try { @@ -179,7 +179,7 @@ static Expr prim_tryEval(EvalState & state, const ATermVector & args) /* Return an environment variable. Use with care. */ -static Expr prim_getEnv(EvalState & state, const ATermVector & args) +static void prim_getEnv(EvalState & state, Value * * args, Value & v) { string name = evalStringNoCtx(state, args[0]); return makeStr(getEnv(name)); @@ -190,7 +190,7 @@ static Expr prim_getEnv(EvalState & state, const ATermVector & args) on standard error. Then return the second expression. Useful for debugging. */ -static Expr prim_trace(EvalState & state, const ATermVector & args) +static void prim_trace(EvalState & state, Value * * args, Value & v) { Expr e = evalExpr(state, args[0]); string s; @@ -272,7 +272,7 @@ static Hash hashDerivationModulo(EvalState & state, Derivation drv) derivation; `drvPath' containing the path of the Nix expression; and `type' set to `derivation' to indicate that this is a derivation. */ -static Expr prim_derivationStrict(EvalState & state, const ATermVector & args) +static void prim_derivationStrict(EvalState & state, Value * * args, Value & v) { startNest(nest, lvlVomit, "evaluating derivation"); @@ -470,7 +470,7 @@ static Expr prim_derivationStrict(EvalState & state, const ATermVector & args) } -static Expr prim_derivationLazy(EvalState & state, const ATermVector & args) +static void prim_derivationLazy(EvalState & state, Value * * args, Value & v) { Expr eAttrs = evalExpr(state, args[0]); ATermMap attrs; @@ -496,7 +496,7 @@ static Expr prim_derivationLazy(EvalState & state, const ATermVector & args) /* Convert the argument to a path. !!! obsolete? */ -static Expr prim_toPath(EvalState & state, const ATermVector & args) +static void prim_toPath(EvalState & state, Value * * args, Value & v) { PathSet context; string path = coerceToPath(state, args[0], context); @@ -512,7 +512,7 @@ static Expr prim_toPath(EvalState & state, const ATermVector & args) /nix/store/newhash-oldhash-oldname. In the past, `toPath' had special case behaviour for store paths, but that created weird corner cases. */ -static Expr prim_storePath(EvalState & state, const ATermVector & args) +static void prim_storePath(EvalState & state, Value * * args, Value & v) { PathSet context; Path path = canonPath(coerceToPath(state, args[0], context)); @@ -526,7 +526,7 @@ static Expr prim_storePath(EvalState & state, const ATermVector & args) } -static Expr prim_pathExists(EvalState & state, const ATermVector & args) +static void prim_pathExists(EvalState & state, Value * * args, Value & v) { PathSet context; Path path = coerceToPath(state, args[0], context); @@ -538,7 +538,7 @@ static Expr prim_pathExists(EvalState & state, const ATermVector & args) /* Return the base name of the given string, i.e., everything following the last slash. */ -static Expr prim_baseNameOf(EvalState & state, const ATermVector & args) +static void prim_baseNameOf(EvalState & state, Value * * args, Value & v) { PathSet context; return makeStr(baseNameOf(coerceToString(state, args[0], context)), context); @@ -548,7 +548,7 @@ static Expr prim_baseNameOf(EvalState & state, const ATermVector & args) /* Return the directory of the given path, i.e., everything before the last slash. Return either a path or a string depending on the type of the argument. */ -static Expr prim_dirOf(EvalState & state, const ATermVector & args) +static void prim_dirOf(EvalState & state, Value * * args, Value & v) { PathSet context; Expr e = evalExpr(state, args[0]); ATerm dummy; @@ -559,7 +559,7 @@ static Expr prim_dirOf(EvalState & state, const ATermVector & args) /* Return the contents of a file as a string. */ -static Expr prim_readFile(EvalState & state, const ATermVector & args) +static void prim_readFile(EvalState & state, Value * * args, Value & v) { PathSet context; Path path = coerceToPath(state, args[0], context); @@ -577,7 +577,7 @@ static Expr prim_readFile(EvalState & state, const ATermVector & args) /* Convert the argument (which can be any Nix expression) to an XML representation returned in a string. Not all Nix expressions can be sensibly or completely represented (e.g., functions). */ -static Expr prim_toXML(EvalState & state, const ATermVector & args) +static void prim_toXML(EvalState & state, Value * * args, Value & v) { std::ostringstream out; PathSet context; @@ -588,7 +588,7 @@ static Expr prim_toXML(EvalState & state, const ATermVector & args) /* Store a string in the Nix store as a source file that can be used as an input by derivations. */ -static Expr prim_toFile(EvalState & state, const ATermVector & args) +static void prim_toFile(EvalState & state, Value * * args, Value & v) { PathSet context; string name = evalStringNoCtx(state, args[0]); @@ -647,7 +647,7 @@ struct FilterFromExpr : PathFilter }; -static Expr prim_filterSource(EvalState & state, const ATermVector & args) +static void prim_filterSource(EvalState & state, Value * * args, Value & v) { PathSet context; Path path = coerceToPath(state, args[1], context); @@ -671,7 +671,7 @@ static Expr prim_filterSource(EvalState & state, const ATermVector & args) /* Return the names of the attributes in an attribute set as a sorted list of strings. */ -static Expr prim_attrNames(EvalState & state, const ATermVector & args) +static void prim_attrNames(EvalState & state, Value * * args, Value & v) { ATermMap attrs; queryAllAttrs(evalExpr(state, args[0]), attrs); @@ -690,7 +690,7 @@ static Expr prim_attrNames(EvalState & state, const ATermVector & args) /* Dynamic version of the `.' operator. */ -static Expr prim_getAttr(EvalState & state, const ATermVector & args) +static void prim_getAttr(EvalState & state, Value * * args, Value & v) { string attr = evalStringNoCtx(state, args[0]); return evalExpr(state, makeSelect(args[1], toATerm(attr))); @@ -698,7 +698,7 @@ static Expr prim_getAttr(EvalState & state, const ATermVector & args) /* Dynamic version of the `?' operator. */ -static Expr prim_hasAttr(EvalState & state, const ATermVector & args) +static void prim_hasAttr(EvalState & state, Value * * args, Value & v) { string attr = evalStringNoCtx(state, args[0]); return evalExpr(state, makeOpHasAttr(args[1], toATerm(attr))); @@ -709,7 +709,7 @@ static Expr prim_hasAttr(EvalState & state, const ATermVector & args) pairs. To be precise, a list [{name = "name1"; value = value1;} ... {name = "nameN"; value = valueN;}] is transformed to {name1 = value1; ... nameN = valueN;}. */ -static Expr prim_listToAttrs(EvalState & state, const ATermVector & args) +static void prim_listToAttrs(EvalState & state, Value * * args, Value & v) { try { ATermMap res = ATermMap(); @@ -739,7 +739,7 @@ static Expr prim_listToAttrs(EvalState & state, const ATermVector & args) } -static Expr prim_removeAttrs(EvalState & state, const ATermVector & args) +static void prim_removeAttrs(EvalState & state, Value * * args, Value & v) { ATermMap attrs; queryAllAttrs(evalExpr(state, args[0]), attrs, true); @@ -755,7 +755,7 @@ static Expr prim_removeAttrs(EvalState & state, const ATermVector & args) /* Determine whether the argument is an attribute set. */ -static Expr prim_isAttrs(EvalState & state, const ATermVector & args) +static void prim_isAttrs(EvalState & state, Value * * args, Value & v) { ATermList list; return makeBool(matchAttrs(evalExpr(state, args[0]), list)); @@ -765,7 +765,7 @@ static Expr prim_isAttrs(EvalState & state, const ATermVector & args) /* Return the right-biased intersection of two attribute sets as1 and as2, i.e. a set that contains every attribute from as2 that is also a member of as1. */ -static Expr prim_intersectAttrs(EvalState & state, const ATermVector & args) +static void prim_intersectAttrs(EvalState & state, Value * * args, Value & v) { ATermMap as1, as2; queryAllAttrs(evalExpr(state, args[0]), as1, true); @@ -807,7 +807,7 @@ static void attrsInPattern(ATermMap & map, Pattern pat) functionArgs (x: ...) => { } */ -static Expr prim_functionArgs(EvalState & state, const ATermVector & args) +static void prim_functionArgs(EvalState & state, Value * * args, Value & v) { Expr f = evalExpr(state, args[0]); ATerm pat, body, pos; @@ -827,7 +827,7 @@ static Expr prim_functionArgs(EvalState & state, const ATermVector & args) /* Determine whether the argument is a list. */ -static Expr prim_isList(EvalState & state, const ATermVector & args) +static void prim_isList(EvalState & state, Value * * args, Value & v) { ATermList list; return makeBool(matchList(evalExpr(state, args[0]), list)); @@ -877,7 +877,7 @@ static void prim_map(EvalState & state, Value * * args, Value & v) #if 0 /* Return the length of a list. This is an O(1) time operation. */ -static Expr prim_length(EvalState & state, const ATermVector & args) +static void prim_length(EvalState & state, Value * * args, Value & v) { ATermList list = evalList(state, args[0]); return makeInt(ATgetLength(list)); @@ -897,7 +897,7 @@ static void prim_add(EvalState & state, Value * * args, Value & v) #if 0 -static Expr prim_sub(EvalState & state, const ATermVector & args) +static void prim_sub(EvalState & state, Value * * args, Value & v) { int i1 = evalInt(state, args[0]); int i2 = evalInt(state, args[1]); @@ -905,7 +905,7 @@ static Expr prim_sub(EvalState & state, const ATermVector & args) } -static Expr prim_mul(EvalState & state, const ATermVector & args) +static void prim_mul(EvalState & state, Value * * args, Value & v) { int i1 = evalInt(state, args[0]); int i2 = evalInt(state, args[1]); @@ -913,20 +913,19 @@ static Expr prim_mul(EvalState & state, const ATermVector & args) } -static Expr prim_div(EvalState & state, const ATermVector & args) +static void prim_div(EvalState & state, Value * * args, Value & v) { int i1 = evalInt(state, args[0]); int i2 = evalInt(state, args[1]); if (i2 == 0) throw EvalError("division by zero"); return makeInt(i1 / i2); } +#endif -static Expr prim_lessThan(EvalState & state, const ATermVector & args) +static void prim_lessThan(EvalState & state, Value * * args, Value & v) { - int i1 = evalInt(state, args[0]); - int i2 = evalInt(state, args[1]); - return makeBool(i1 < i2); + mkBool(v, state.forceInt(*args[0]) < state.forceInt(*args[1])); } @@ -938,19 +937,20 @@ static Expr prim_lessThan(EvalState & state, const ATermVector & args) /* Convert the argument to a string. Paths are *not* copied to the store, so `toString /foo/bar' yields `"/foo/bar"', not `"/nix/store/whatever..."'. */ -static Expr prim_toString(EvalState & state, const ATermVector & args) +static void prim_toString(EvalState & state, Value * * args, Value & v) { PathSet context; - string s = coerceToString(state, args[0], context, true, false); - return makeStr(s, context); + string s = state.coerceToString(*args[0], context, true, false); + mkString(v, strdup(s.c_str())); // !!! context } +#if 0 /* `substring start len str' returns the substring of `str' starting at character position `min(start, stringLength str)' inclusive and ending at `min(start + len, stringLength str)'. `start' must be non-negative. */ -static Expr prim_substring(EvalState & state, const ATermVector & args) +static void prim_substring(EvalState & state, Value * * args, Value & v) { int start = evalInt(state, args[0]); int len = evalInt(state, args[1]); @@ -963,7 +963,7 @@ static Expr prim_substring(EvalState & state, const ATermVector & args) } -static Expr prim_stringLength(EvalState & state, const ATermVector & args) +static void prim_stringLength(EvalState & state, Value * * args, Value & v) { PathSet context; string s = coerceToString(state, args[0], context); @@ -971,7 +971,7 @@ static Expr prim_stringLength(EvalState & state, const ATermVector & args) } -static Expr prim_unsafeDiscardStringContext(EvalState & state, const ATermVector & args) +static void prim_unsafeDiscardStringContext(EvalState & state, Value * * args, Value & v) { PathSet context; string s = coerceToString(state, args[0], context); @@ -985,7 +985,7 @@ static Expr prim_unsafeDiscardStringContext(EvalState & state, const ATermVector source-only deployment). This primop marks the string context so that builtins.derivation adds the path to drv.inputSrcs rather than drv.inputDrvs. */ -static Expr prim_unsafeDiscardOutputDependency(EvalState & state, const ATermVector & args) +static void prim_unsafeDiscardOutputDependency(EvalState & state, Value * * args, Value & v) { PathSet context; string s = coerceToString(state, args[0], context); @@ -1004,14 +1004,14 @@ static Expr prim_unsafeDiscardOutputDependency(EvalState & state, const ATermVec /* Expression serialization/deserialization */ -static Expr prim_exprToString(EvalState & state, const ATermVector & args) +static void prim_exprToString(EvalState & state, Value * * args, Value & v) { /* !!! this disregards context */ return makeStr(atPrint(evalExpr(state, args[0]))); } -static Expr prim_stringToExpr(EvalState & state, const ATermVector & args) +static void prim_stringToExpr(EvalState & state, Value * * args, Value & v) { /* !!! this can introduce arbitrary garbage terms in the evaluator! */; @@ -1028,7 +1028,7 @@ static Expr prim_stringToExpr(EvalState & state, const ATermVector & args) *************************************************************/ -static Expr prim_parseDrvName(EvalState & state, const ATermVector & args) +static void prim_parseDrvName(EvalState & state, Value * * args, Value & v) { string name = evalStringNoCtx(state, args[0]); DrvName parsed(name); @@ -1039,7 +1039,7 @@ static Expr prim_parseDrvName(EvalState & state, const ATermVector & args) } -static Expr prim_compareVersions(EvalState & state, const ATermVector & args) +static void prim_compareVersions(EvalState & state, Value * * args, Value & v) { string version1 = evalStringNoCtx(state, args[0]); string version2 = evalStringNoCtx(state, args[1]); @@ -1144,10 +1144,12 @@ void EvalState::createBaseEnv() addPrimOp("__sub", 2, prim_sub); addPrimOp("__mul", 2, prim_mul); addPrimOp("__div", 2, prim_div); +#endif addPrimOp("__lessThan", 2, prim_lessThan); // String manipulation addPrimOp("toString", 1, prim_toString); +#if 0 addPrimOp("__substring", 3, prim_substring); addPrimOp("__stringLength", 1, prim_stringLength); addPrimOp("__unsafeDiscardStringContext", 1, prim_unsafeDiscardStringContext); |