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expr_functions.go
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/
expr_functions.go
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package graph
import (
"fmt"
"github.com/hephbuild/heph/exprs"
"github.com/hephbuild/heph/specs"
"github.com/hephbuild/heph/utils/sets"
)
type exprFunc struct {
Run func(t *Target, expr exprs.Expr, breadcrumb *sets.StringSet) ([]*Target, error)
Analyze func(t specs.Target, expr exprs.Expr, breadcrumb *sets.StringSet, required *sets.Set[string, specs.Matcher]) error
}
func (e *State) exprFunctions() map[string]exprFunc {
return map[string]exprFunc{
"collect": {
Run: func(t *Target, expr exprs.Expr, breadcrumb *sets.StringSet) ([]*Target, error) {
targets, err := e.collect(t, expr)
if err != nil {
return nil, fmt.Errorf("`%v`: %w", expr.String, err)
}
for _, target := range targets {
err := e.LinkTarget(target, breadcrumb)
if err != nil {
return nil, fmt.Errorf("collect: %w", err)
}
}
return targets, nil
},
Analyze: func(t specs.Target, expr exprs.Expr, breadcrumb *sets.StringSet, required *sets.Set[string, specs.Matcher]) error {
matcher, _, err := e.collectMatcher(t, expr)
if err != nil {
return err
}
required.Add(matcher)
return nil
},
},
"find_parent": {
Run: func(t *Target, expr exprs.Expr, breadcrumb *sets.StringSet) ([]*Target, error) {
target, err := e.findParent(t, expr)
if err != nil {
return nil, fmt.Errorf("`%v`: %w", expr.String, err)
}
if target != nil {
err = e.LinkTarget(target, breadcrumb)
if err != nil {
return nil, fmt.Errorf("find_parent: %w", err)
}
return []*Target{target}, nil
}
return []*Target{}, nil
},
Analyze: func(t specs.Target, expr exprs.Expr, breadcrumb *sets.StringSet, required *sets.Set[string, specs.Matcher]) error {
required.Add(specs.AllMatcher)
return nil
},
},
}
}