[−][src]Module canrun::goals::project
Goals
that deal with resolved values.
Not all relationships can be expressed with the simpler low level operations, especially when involve values of different types.
The project family of goals use
State.constrain()
to allow dealing with
resolved values. These goals are relatively low level and may be a bit
subtle to use correctly. They are provided as a foundation for
building higher level goals.
Functions
assert_1 | Create a projection goal that succeeds if the resolved value passes an assertion test. |
assert_2 | Create a projection goal that succeeds if the resolved values pass an assertion test. |
map_1 | Create a projection goal that allows deriving one resolved value from the other. |
map_2 | Create a projection goal that allows deriving one resolved value from the other two. |
project_1 | Create a projection goal that allows creating a new goal based on the resolved value. |
project_2 | Create a projection goal that allows creating a new goal based on the resolved values. |