func (pkg *Package) readHeaderFile(location string) {
// println("READING FUNCTION HEADER FILE")
// TODO : plug in new go parser to do this
input_file := filepath.Join(location, "headers.tf")
if _, err := os.Open(input_file); err != nil {
pkg.Log.Infof("Warning -- found no headers.tf")
return
}
stubs := parser.ParseFile(location, ".", "headers.tf", false, make([]string, 0))
for _, function := range stubs.Functions {
// Verify that signatures for primitives refer to things that actually exist
// println("HEY, LINKING BUILTIN:", function.Stub(pkg.Package))
stubStr := strings.Replace(function.Stub(pkg.Package), ",", ".", -1)
if whale.LookupBuiltIn(stubStr) == nil {
// TODO: figure out why the panic string is suppressed so that we can remove the println
// println("in " + input_file + " -- attempt to provide signature for nonexistent built-in " + stubStr)
panic("in " + input_file + " -- attempt to provide signature for nonexistent built-in " + stubStr)
}
pkg.resolveHeader(function)
function.BuiltIn = proto.Bool(true)
pkg.Package.Functions = append(pkg.Package.Functions, function)
}
}
func (pkgr *Packager) resolveFunctions(dirName, fileName string) {
// the existence of `fileName` should be verified by the caller
relPath := filepath.Join(dirName, fileName)
defs := parser.ParseFile(pkgr.MixerDir, dirName, fileName, true, make([]string, 0))
for _, f := range defs.Functions {
// if it's an import stub ...
if f.GetName() == "@import" {
importPath := f.GetDescription()
importExists, _ := fileutil.Exists(filepath.Join(pkgr.MixerDir, importPath))
if !importExists {
errURL := "http://help.moovweb.com/entries/22335641-importing-non-existent-files-in-functions-main-ts"
msg := fmt.Sprintf("\n********\nin file %s:\nattempting to import nonexistent file %s\nPlease consult %s for more information about this error.\n********\n", relPath, importPath, errURL)
panic(msg)
}
pkgr.resolveFunctions(filepath.Dir(importPath), filepath.Base(importPath))
continue // to forgo appending it to the comprehensive list of functions
// otherwise it's a proper function definition -- see if it's native
} else if f.GetBuiltIn() {
pkgr.resolveNativeDeclaration(f, relPath)
// otherwise it's a user-defined function
} else {
pkgr.resolveUserDefinition(f, relPath)
}
pkgr.Package.Functions = append(pkgr.Package.Functions, f)
}
}
func ReadPackageDefinitions(pkg *tp.Package, projectPath, scriptPath, fileName string) {
//pkg.Println(" -- reading definitions")
_, err := ioutil.ReadFile(filepath.Join(projectPath, scriptPath, fileName))
//()("READING DEFINITIONS:", location)
if err != nil {
//pkg.Log.Infof("\t -- no user defined functions found")
// msg := fmt.Sprintf("unable to open function definition file: %s", location)
// println(msg)
// panic(msg)
return
}
definitions := parser.ParseFile(projectPath, scriptPath, fileName, false, make([]string, 0))
// Create a map of pre-packaged function signatures
prepackaged := make(map[string]bool)
for _, f := range pkg.Functions {
var sig string
baseSig := f.Stub(pkg)
if baseSig == "name,Text" ||
baseSig == "text" {
sig = fmt.Sprintf("%s.%s", f.ScopeTypeString(pkg), f.Stub(pkg))
} else {
sig = baseSig
}
prepackaged[sig] = true
}
// println("*****************")
// println("*****************")
// println()
// println()
for _, function := range definitions.Functions {
if function.GetName() == "@import" { // check if it's an import stub first ...
importPath := function.GetDescription()
// Verify the existence of the imported file from here, so that we can
// report the name of the file that contains the import statement.
importExists, existsErr := exists(filepath.Join(projectPath, importPath))
if !importExists || (existsErr != nil) {
errURL := "http://help.moovweb.com/entries/22335641-importing-non-existent-files-in-functions-main-ts"
msg := fmt.Sprintf("\n********\nin file %s:\nattempting to import nonexistent file %s\nPlease consult %s for more information about this error.\n********\n", filepath.Join(scriptPath, fileName), importPath, errURL)
panic(msg)
}
ReadPackageDefinitions(pkg, projectPath, filepath.Dir(importPath), filepath.Base(importPath))
} else { // otherwise if it's not an import stub ...
//pkg.Log.Infof("\t -- function: %v", function)
resolveDefinition(pkg, function, filepath.Join(scriptPath, fileName))
// After resolving a user-defined function, see if its fully resolved signature
// is the same as the signature of a prepackaged function. If so, throw an error.
// var newSig string
// newBaseSig := function.Stub(pkg)
// if newBaseSig == "name,Text" ||
// newBaseSig == "text" {
// newSig = fmt.Sprintf("%s.%s", function.ScopeTypeString(pkg), function.Stub(pkg))
// } else {
// newSig = newBaseSig
// }
// // present := false
// _, present := prepackaged[newSig]
// if present {
// msg := fmt.Sprintf("Attempt to redefine prepackaged function: %s", strings.Replace(newSig, ",", "(", 1)+")")
// println(msg)
// panic(msg)
// }
pkg.Functions = append(pkg.Functions, function)
}
}
}