Releases · sthenic/vparse

Require Nim v1.4.0.
The returned tuple for the find_declaration() procedure now includes any
expression node if the declaration involves an assignment. Otherwise, this
field is set to nil.
Ranged expressions with : is now an infix node.
Refactored the module graph type (graph.nim) and its interface.

Parsing a Verilog source file now involves attempting to look up the
declarations of all modules instantiated within.
Refactored the iterators walk_ports() and walk_parameters() to simplify
logic in user applications.

Add module caching. The user has to manage the module cache and location
database and initialize each new module graph with these objects. See
graph.nim:new_graph().
Add interface find_all_drivers() to simplify extracting driver nodes from
the AST.
Add interface find_all_ports() and find_all_parameters().
Add a set for the node types involved in expressions.
Add the option to specify the start of the search for the various
find_first() functions.
Add operators [] and []= to AST nodes. This is shorthand to access the
sequence of sons for nonprimitive nodes, i.e. n[i] is equivalent to
n.sons[i].
Define the len() proc for nonprimitive AST nodes. The operation is
equivalent to len(n.sons).
For completeness, performing a declaration lookup with a module instance name
leads back to the instantiation itself.
Add is_external_identifier() to the AST API.
Add find_external_identifier(), find_module_port_declaration() and
find_module_parameter_declaration() to the module graph API.
Add the iterator walk_port_references().
Module declaration nodes now include the leading comment token.
An include path ending with '**' implies a recursive include.

Disable colored output when stdout does not lead to a terminal.
Fix find_all_parameters() always including the parameters declared in the
module body. Like ports, these only get included if the parameter port list is
omitted.
Fix an issue where the lexer would throw an exception when parsing a decimal
constant larger than 64 bits.
Hierarchical identifiers like foo.bar[1].baz[3:0] are now supported.
Previously, only ranged identifiers was allowed and the scoping syntax with
. didn't work.
Fix an issue where operators were not being lexed correctly.

The issue occurred when a an infix operator was immediately followed by a
prefix operator, i.e. not separated by whitespace. Before this fix an
expression like a|~b would be lexed as a, |~ and b instead of a,
|, ~ and b like it should.
Fix find_declaration() not yielding the declaration when the target
identifier is a port reference.

Remove AST nodes NkVariableLvalue and NkArrayIdentifier.
Remove special identifier node types like NkPortIdentifier and
NkModuleIdentifier in favor of the generic NkIdentifier.
Remove NkParameterAssignment, use NkAssignment instead.

Fix find_identifier_physical() not working correctly when targeting macro
arguments.
find_references() now correctly ignores named parameter port connections.

The interface to traverse the AST searching for the declaration of a target
identifier now returns both the declaration node as well as the matching
identifier node within the declaration. Previously, only one of these values
was returned.
find_all_module_instantiations() now returns the top-level instantiation
node instead of its identifer node.
find_all_declarations() no longer performs a recursive search by default.
Remove NkPortConnection in favor of more specialized node types for port and
parameter port connections.

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