redef class ToolContext
# Option --path
- readable var _opt_path: OptionArray = new OptionArray("Set include path for loaders (may be used more than once)", "-I", "--path")
+ var opt_path: OptionArray = new OptionArray("Set include path for loaders (may be used more than once)", "-I", "--path")
# Option --only-metamodel
- readable var _opt_only_metamodel: OptionBool = new OptionBool("Stop after meta-model processing", "--only-metamodel")
+ var opt_only_metamodel: OptionBool = new OptionBool("Stop after meta-model processing", "--only-metamodel")
# Option --only-parse
- readable var _opt_only_parse: OptionBool = new OptionBool("Only proceed to parse step of loaders", "--only-parse")
+ var opt_only_parse: OptionBool = new OptionBool("Only proceed to parse step of loaders", "--only-parse")
redef init
do
fun modelbuilder: ModelBuilder do return modelbuilder_real.as(not null)
private var modelbuilder_real: nullable ModelBuilder = null
+ fun run_global_phases(mainmodule: MModule)
+ do
+ for phase in phases_list do
+ phase.process_mainmodule(mainmodule)
+ end
+ end
end
+redef class Phase
+ # Specific action to execute on the whole program
+ # Called by the `ToolContext::run_global_phases`
+ # @toimplement
+ fun process_mainmodule(mainmodule: MModule) do end
+end
+
+
# A model builder knows how to load nit source files and build the associated model
class ModelBuilder
# The model where new modules, classes and properties are added
end
# Load a bunch of modules.
- # `modules' can contains filenames or module names.
+ # `modules` can contains filenames or module names.
# Imported modules are automatically loaded and modelized.
# The result is the corresponding model elements.
# Errors and warnings are printed with the toolcontext.
var time0 = get_time
# Parse and recursively load
self.toolcontext.info("*** PARSE ***", 1)
- var mmodules = new Array[MModule]
+ var mmodules = new ArraySet[MModule]
for a in modules do
var nmodule = self.load_module(null, a)
if nmodule == null then continue # Skip error
exit(0)
end
- return mmodules
+ return mmodules.to_a
end
- # Return a class named `name' visible by the module `mmodule'.
+ # Return a class named `name` visible by the module `mmodule`.
# Visibility in modules is correctly handled.
# If no such a class exists, then null is returned.
- # If more than one class exists, then an error on `anode' is displayed and null is returned.
+ # If more than one class exists, then an error on `anode` is displayed and null is returned.
# FIXME: add a way to handle class name conflict
fun try_get_mclass_by_name(anode: ANode, mmodule: MModule, name: String): nullable MClass
do
return res
end
- # Return a property named `name' on the type `mtype' visible in the module `mmodule'.
+ # Return a property named `name` on the type `mtype` visible in the module `mmodule`.
# Visibility in modules is correctly handled.
# Protected properties are returned (it is up to the caller to check and reject protected properties).
# If no such a property exists, then null is returned.
- # If more than one property exists, then an error on `anode' is displayed and null is returned.
+ # If more than one property exists, then an error on `anode` is displayed and null is returned.
# FIXME: add a way to handle property name conflict
fun try_get_mproperty_by_name2(anode: ANode, mmodule: MModule, mtype: MType, name: String): nullable MProperty
do
var paths: Array[String] = new Array[String]
# Get a module by its short name; if required, the module is loaded, parsed and its hierarchies computed.
- # If `mmodule' is set, then the module search starts from it up to the top level (see `paths');
- # if `mmodule' is null then the module is searched in the top level only.
- # If no module exists or there is a name conflict, then an error on `anode' is displayed and null is returned.
+ # If `mmodule` is set, then the module search starts from it up to the top level (see `paths`);
+ # if `mmodule` is null then the module is searched in the top level only.
+ # If no module exists or there is a name conflict, then an error on `anode` is displayed and null is returned.
# FIXME: add a way to handle module name conflict
fun get_mmodule_by_name(anode: ANode, mmodule: nullable MModule, name: String): nullable MModule
do
if candidate == null then
candidate = try_file
else if candidate != try_file then
- error(anode, "Error: conflicting module file for {name}: {candidate} {try_file}")
+ # try to disambiguate conflicting modules
+ var abs_candidate = module_absolute_path(candidate)
+ var abs_try_file = module_absolute_path(try_file)
+ if abs_candidate != abs_try_file then
+ error(anode, "Error: conflicting module file for {name}: {candidate} {try_file}")
+ end
end
end
try_file = (dirname + "/" + name + "/" + name + ".nit").simplify_path
if candidate == null then
candidate = try_file
else if candidate != try_file then
- error(anode, "Error: conflicting module file for {name}: {candidate} {try_file}")
+ # try to disambiguate conflicting modules
+ var abs_candidate = module_absolute_path(candidate)
+ var abs_try_file = module_absolute_path(try_file)
+ if abs_candidate != abs_try_file then
+ error(anode, "Error: conflicting module file for {name}: {candidate} {try_file}")
+ end
end
end
end
return res.mmodule.as(not null)
end
+ # Transform relative paths (starting with '../') into absolute paths
+ private fun module_absolute_path(path: String): String do
+ if path.has_prefix("..") then
+ return getcwd.join_path(path).simplify_path
+ end
+ return path
+ end
+
+ # loaded module by absolute path
+ private var loaded_nmodules = new HashMap[String, AModule]
+
# Try to load a module using a path.
# Display an error if there is a problem (IO / lexer / parser) and return null
# Note: usually, you do not need this method, use `get_mmodule_by_name` instead.
fun load_module(owner: nullable MModule, filename: String): nullable AModule
do
+ if filename.file_extension != "nit" then
+ self.toolcontext.error(null, "Error: file {filename} is not a valid nit module.")
+ return null
+ end
if not filename.file_exists then
self.toolcontext.error(null, "Error: file {filename} not found.")
return null
end
+ var module_path = module_absolute_path(filename)
+ if loaded_nmodules.keys.has(module_path) then
+ return loaded_nmodules[module_path]
+ end
+
var x = if owner != null then owner.to_s else "."
self.toolcontext.info("load module {filename} in {x}", 2)
var parser = new Parser(lexer)
var tree = parser.parse
file.close
+ var mod_name = filename.basename(".nit")
+
+ var nmodule = load_module_commons(owner, tree, mod_name)
+ if nmodule != null then loaded_nmodules[module_path] = nmodule
+
+ return nmodule
+ end
+
+ fun load_rt_module(owner: MModule, nmodule: AModule, mod_name: String): nullable AModule
+ do
+ # Create the module
+ var mmodule = new MModule(model, owner, mod_name, nmodule.location)
+ nmodule.mmodule = mmodule
+ nmodules.add(nmodule)
+ self.mmodule2nmodule[mmodule] = nmodule
+
+ var imported_modules = new Array[MModule]
+
+ imported_modules.add(owner)
+ mmodule.set_visibility_for(owner, intrude_visibility)
+
+ mmodule.set_imported_mmodules(imported_modules)
+ return nmodule
+ end
+
+ # Try to load a module using a path.
+ # Display an error if there is a problem (IO / lexer / parser) and return null
+ # Note: usually, you do not need this method, use `get_mmodule_by_name` instead.
+ private fun load_module_commons(owner: nullable MModule, tree: Start, mod_name: String): nullable AModule
+ do
# Handle lexer and parser error
var nmodule = tree.n_base
if nmodule == null then
end
# Check the module name
- var mod_name = filename.basename(".nit")
var decl = nmodule.n_moduledecl
if decl == null then
#warning(nmodule, "Warning: Missing 'module' keyword") #FIXME: NOT YET FOR COMPATIBILITY
var mod_name = aimport.n_name.n_id.text
var sup = self.get_mmodule_by_name(aimport.n_name, mmodule, mod_name)
if sup == null then continue # Skip error
+ aimport.mmodule = sup
imported_modules.add(sup)
var mvisibility = aimport.n_visibility.mvisibility
+ if mvisibility == protected_visibility then
+ error(aimport.n_visibility, "Error: only properties can be protected.")
+ return
+ end
mmodule.set_visibility_for(sup, mvisibility)
end
if stdimport then
var nmodules: Array[AModule] = new Array[AModule]
# Register the nmodule associated to each mmodule
- # FIXME: why not refine the MModule class with a nullable attribute?
+ # FIXME: why not refine the `MModule` class with a nullable attribute?
var mmodule2nmodule: HashMap[MModule, AModule] = new HashMap[MModule, AModule]
# Helper function to display an error on a node.
- # Alias for `self.toolcontext.error(n.hot_location, text)'
+ # Alias for `self.toolcontext.error(n.hot_location, text)`
fun error(n: ANode, text: String)
do
self.toolcontext.error(n.hot_location, text)
end
# Helper function to display a warning on a node.
- # Alias for: `self.toolcontext.warning(n.hot_location, text)'
+ # Alias for: `self.toolcontext.warning(n.hot_location, text)`
fun warning(n: ANode, text: String)
do
self.toolcontext.warning(n.hot_location, text)
end
- # Force to get the primitive method named `name' on the type `recv' or do a fatal error on `n'
- fun force_get_primitive_method(n: ANode, name: String, recv: MType, mmodule: MModule): MMethod
+ # Force to get the primitive method named `name` on the type `recv` or do a fatal error on `n`
+ fun force_get_primitive_method(n: ANode, name: String, recv: MClass, mmodule: MModule): MMethod
do
var res = mmodule.try_get_primitive_method(name, recv)
if res == null then
end
end
+redef class AStdImport
+ # The imported module once determined
+ var mmodule: nullable MModule = null
+end
+
redef class AModule
- # The associated MModule once build by a `ModelBuilder'
+ # The associated MModule once build by a `ModelBuilder`
var mmodule: nullable MModule
# Flag that indicate if the importation is already completed
var is_importation_done: Bool = false
nitlanguage / nit.git / blobdiff