TTCompilerRules

TTCompilerRules defines how the python abstract syntax tree (AST) library should handle various syntactic elements as it visits each node of the AST.

These rules are automatically called as the ast (abstract syntax tree) library ‘visits’ syntactic structures within the TTPython file to compile.

The TTSQ constructor is also an especially essential component of the compilation process!

class ticktalkpython.CompilerRules.TTEnvVisitor(node)

generic_visit(node: AST) → set

Called if no explicit visitor function exists for a node.

class ticktalkpython.CompilerRules.TTGraphCompilationVisitor(graph: TTGraph, debug=False, source=None, pathname=None)

A child class of ast.NodeVisitor, which walks through the ast and calls specific handlers for each syntactic construct

Parameters:

graph (TTGraph) – An instantiated but empty graph, ready to be filled in as the AST is walked

compile_with_shadow_table(node, syms: List[str], rename_arcs: List[str], arcs: List[TTArc], has_trigger: bool)

Compiles node with a shadow table. The table is created by the given syms and output_arcs.

generate_branch_sq(input_env: List[TTArc], has_constants: bool)

Generates a string representing a Python if_else

generate_sq(node: Call, func: FunctionDef, name: str, input_arcs: List[TTArc], is_singleton=False, input_ctrl_arc=None, firing_rule: TTFiringRuleType = None, num_output_arcs=1) → TTSQ

Preps the input arcs, creates SQ, and adds it to the sq_list

generic_visit(node)

Called if no explicit visitor function exists for a node.

replace_context(ctxt: Context)

Returns the old context and replaces the current context with the one given

scrape_kwarg(s, node: Call)

Searches for the value of key s in kwargs. Note that the node needs keywords

ticktalkpython.CompilerRules.import_sqified_functions_from_module(module, graph)

Find the module and import any SQify or STREAMify-decorated functions