triqs.gfs.descriptor_base.BaseBlock

class triqs.gfs.descriptor_base.BaseBlock(G, *args, **kw)[source]

Bases: Base

Block-aware descriptor base.

For a single-Gf target this behaves like Base. For a BlockGf target the descriptor builds one sub-descriptor per block, exposed through iteration so that __lshift__() can dispatch them block-wise.

Parameters:

GGf or BlockGf: Reference Green’s function the descriptor will eventually act on. Captured to detect the block-target case.
*args, **kw: Forwarded to the per-block sub-descriptor constructor.

Attributes

G	(Gf or BlockGf) Captured target (inherited from `Base`).
descriptor_iter	(generator of BaseBlock) Lazily-constructed per-block sub-descriptors. Only present when `G` is a `BlockGf`; see `is_block_descriptor()`.

Methods

is_block_descriptor()

Whether the captured target is a BlockGf.