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Diffstat (limited to 'specs/~lambdas.yml')
| -rw-r--r-- | specs/~lambdas.yml | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/specs/~lambdas.yml b/specs/~lambdas.yml index f777bde..741a98a 100644 --- a/specs/~lambdas.yml +++ b/specs/~lambdas.yml @@ -1,3 +1,15 @@ +overview: | + Lambdas are a special-cased data type for use in interpolations and + sections. + + When used as the data value for an Interpolation tag, the lambda MUST be + treatable as an arity 0 function, and invoked as such. The returned value + MUST be rendered, then interpolated in place of the lambda. + + When used as the data value for a Section tag, the lambda MUST be treatable + as an arity 1 function, and invoked as such (passing a String containing the + unprocessed section contents). The returned value MUST be rendered, then + interpolated in place of the section. tests: - name: Interpolation desc: A lambda's return value should be interpolated. |