Function NewSourceInfo

common/ast/ast.go:193–217

NewSourceInfo creates a simple SourceInfo object from an input common.Source value.

(src common.Source)

// NewSourceInfo creates a simple SourceInfo object from an input common.Source value.
func NewSourceInfo(src common.Source) *SourceInfo {
	var lineOffsets []int32
	var desc string
	baseLine := int32(0)
	baseCol := int32(0)
	if src != nil {
		desc = src.Description()
		lineOffsets = src.LineOffsets()
		// Determine whether the source metadata should be computed relative
		// to a base line and column value. This can be determined by requesting
		// the location for offset 0 from the source object.
		if loc, found := src.OffsetLocation(0); found {
			baseLine = int32(loc.Line()) - 1
			baseCol = int32(loc.Column())
		}
	}
	return &SourceInfo{
		desc:         desc,
		lines:        lineOffsets,
		baseLine:     baseLine,
		baseCol:      baseCol,
		offsetRanges: make(map[int64]OffsetRange),
		macroCalls:   make(map[int64]Expr),
	}
}

// CopySourceInfo creates a deep copy of the MacroCalls within the input SourceInfo.
//