Golang reader.SeekToFunction函数代码示例

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本文整理汇总了Golang中github.com/derekparker/delve/dwarf/reader.SeekToFunction函数的典型用法代码示例。如果您正苦于以下问题：Golang SeekToFunction函数的具体用法？Golang SeekToFunction怎么用？Golang SeekToFunction使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了SeekToFunction函数的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: variablesByTag

// Fetches all variables of a specific type in the current function scope
func (thread *Thread) variablesByTag(tag dwarf.Tag) ([]*Variable, error) {
	pc, err := thread.PC()
	if err != nil {
		return nil, err
	}

	reader := thread.dbp.DwarfReader()

	_, err = reader.SeekToFunction(pc)
	if err != nil {
		return nil, err
	}

	vars := make([]*Variable, 0)

	for entry, err := reader.NextScopeVariable(); entry != nil; entry, err = reader.NextScopeVariable() {
		if err != nil {
			return nil, err
		}

		if entry.Tag == tag {
			val, err := thread.extractVariableFromEntry(entry)
			if err != nil {
				// skip variables that we can't parse yet
				continue
			}

			vars = append(vars, val)
		}
	}

	return vars, nil
}

开发者ID:rsrsps，项目名称:delve，代码行数:34，代码来源:variables.go

示例2: variablesByTag

// Fetches all variables of a specific type in the current function scope
func (scope *EvalScope) variablesByTag(tag dwarf.Tag, cfg LoadConfig) ([]*Variable, error) {
	reader := scope.DwarfReader()

	_, err := reader.SeekToFunction(scope.PC)
	if err != nil {
		return nil, err
	}

	var vars []*Variable
	for entry, err := reader.NextScopeVariable(); entry != nil; entry, err = reader.NextScopeVariable() {
		if err != nil {
			return nil, err
		}

		if entry.Tag == tag {
			val, err := scope.extractVariableFromEntry(entry, cfg)
			if err != nil {
				// skip variables that we can't parse yet
				continue
			}

			vars = append(vars, val)
		}
	}

	return vars, nil
}

开发者ID:DuoSoftware，项目名称:v6engine-deps，代码行数:28，代码来源:variables.go

示例3: EvalVariable

// Returns the value of the named variable.
func (thread *Thread) EvalVariable(name string) (*Variable, error) {
	pc, err := thread.PC()
	if err != nil {
		return nil, err
	}

	reader := thread.dbp.DwarfReader()

	_, err = reader.SeekToFunction(pc)
	if err != nil {
		return nil, err
	}

	varName := name
	memberName := ""
	if strings.Contains(name, ".") {
		idx := strings.Index(name, ".")
		varName = name[:idx]
		memberName = name[idx+1:]
	}

	for entry, err := reader.NextScopeVariable(); entry != nil; entry, err = reader.NextScopeVariable() {
		if err != nil {
			return nil, err
		}

		n, ok := entry.Val(dwarf.AttrName).(string)
		if !ok {
			continue
		}

		if n == varName {
			if len(memberName) == 0 {
				return thread.extractVariableFromEntry(entry)
			}
			return thread.evaluateStructMember(entry, reader, memberName)
		}
	}

	// Attempt to evaluate name as a package variable.
	if memberName != "" {
		return thread.EvalPackageVariable(name)
	} else {
		loc, err := thread.Location()
		if err == nil && loc.Fn != nil {
			v, err := thread.EvalPackageVariable(loc.Fn.PackageName() + "." + name)
			if err == nil {
				v.Name = name
				return v, nil
			}
		}
	}

	return nil, fmt.Errorf("could not find symbol value for %s", name)
}

开发者ID:jeff235255，项目名称:delve，代码行数:56，代码来源:variables.go

示例4: EvalVariable

// Returns the value of the named variable.
func (thread *Thread) EvalVariable(name string) (*Variable, error) {
	pc, err := thread.PC()
	if err != nil {
		return nil, err
	}

	reader := thread.dbp.DwarfReader()

	_, err = reader.SeekToFunction(pc)
	if err != nil {
		return nil, err
	}

	varName := name
	memberName := ""
	if strings.Contains(name, ".") {
		idx := strings.Index(name, ".")
		varName = name[:idx]
		memberName = name[idx+1:]
	}

	for entry, err := reader.NextScopeVariable(); entry != nil; entry, err = reader.NextScopeVariable() {
		if err != nil {
			return nil, err
		}

		n, ok := entry.Val(dwarf.AttrName).(string)
		if !ok {
			continue
		}

		if n == varName {
			if len(memberName) == 0 {
				return thread.extractVariableFromEntry(entry)
			}
			return thread.evaluateStructMember(entry, reader, memberName)
		}
	}

	return nil, fmt.Errorf("could not find symbol value for %s", name)
}

开发者ID:rsrsps，项目名称:delve，代码行数:42，代码来源:variables.go

示例5: extractVarInfo

func (scope *EvalScope) extractVarInfo(varName string) (*Variable, error) {
	reader := scope.DwarfReader()

	_, err := reader.SeekToFunction(scope.PC)
	if err != nil {
		return nil, err
	}

	for entry, err := reader.NextScopeVariable(); entry != nil; entry, err = reader.NextScopeVariable() {
		if err != nil {
			return nil, err
		}

		n, ok := entry.Val(dwarf.AttrName).(string)
		if !ok {
			continue
		}

		if n == varName {
			return scope.extractVarInfoFromEntry(entry, reader)
		}
	}
	return nil, fmt.Errorf("could not find symbol value for %s", varName)
}

开发者ID:DuoSoftware，项目名称:v6engine-deps，代码行数:24，代码来源:variables.go

注：本文中的github.com/derekparker/delve/dwarf/reader.SeekToFunction函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。