to_blocks: Convert an ASTNode Object to Basic Blocks

In nick-ulle/ast: Low-level Static Analysis Tools for R Code

Convert an ASTNode Object to Basic Blocks

Description

This function converts an ASTNode object or a quoted R expression into a list of basic blocks. When the root of the AST is a Function object, the CFG is built for its body.

Usage

to_blocks(node, in_place = FALSE, ssa = TRUE, insert_return = TRUE)

Arguments

node	A quoted R expression or an abstract syntax tree.
in_place	(logical) Operate on the node in place? If TRUE, the node will be modified.
ssa	(logical) Also convert to static single assignment form?
insert_return	(logical) Apply insert_return() to the node before generating the CFG?

Details

Each basic block contains a sequence of non-branching program instructions. Each basic block ends with an instruction that branches to one or more other basic blocks.

Value

A Function node with the control flow graph in its $cfg field.

nick-ulle/ast documentation built on May 14, 2024, 7:40 p.m.